piperidines and Hypoglycemia

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was reported from China in January, 2020. SARS-CoV-2 is efficiently transmitted from person to person and, in 2 months, has caused more than 82 000 laboratory-confirmed cases of coronavirus disease 2019 (COVID-19) and 2800 deaths in 46 countries. The total number of cases and deaths has surpassed that of the 2003 severe acute respiratory syndrome coronavirus (SARS-CoV). Although both COVID-19 and severe acute respiratory syndrome (SARS) manifest as pneumonia, COVID-19 is associated with apparently more efficient transmission, fewer cases of diarrhoea, increased mental confusion, and a lower crude fatality rate. However, the underlying virus-host interactive characteristics conferring these observations on transmissibility and clinical manifestations of COVID-19 remain unknown.. We systematically investigated the cellular susceptibility, species tropism, replication kinetics, and cell damage of SARS-CoV-2 and compared findings with those for SARS-CoV. We compared SARS-CoV-2 and SARS-CoV replication in different cell lines with one-way ANOVA. For the area under the curve comparison between SARS-CoV-2 and SARS-CoV replication in Calu3 (pulmonary) and Caco2 (intestinal) cells, we used Student's. As far as we know, our study presents the first quantitative data for tropism, replication kinetics, and cell damage of SARS-CoV-2. These data provide novel insights into the lower incidence of diarrhoea, decreased disease severity, and reduced mortality in patients with COVID-19, with respect to the pathogenesis and high transmissibility of SARS-CoV-2 compared with SARS-CoV.. May Tam Mak Mei Yin, The Shaw Foundation Hong Kong, Richard Yu and Carol Yu, Michael Seak-Kan Tong, Respiratory Viral Research Foundation, Hui Ming, Hui Hoy and Chow Sin Lan Charity Fund, Chan Yin Chuen Memorial Charitable Foundation, Marina Man-Wai Lee, The Hong Kong Hainan Commercial Association South China Microbiology Research Fund, The Jessie & George Ho Charitable Foundation, Perfect Shape Medical, The Consultancy Service for Enhancing Laboratory Surveillance of Emerging Infectious Diseases and Research Capability on Antimicrobial Resistance for the Department of Health of the Hong Kong Special Administrative Region Government, The Theme-Based Research Scheme of the Research Grants Council, Sanming Project of Medicine in Shenzhen, and The High Level-Hospital Program, Health Commission of Guangdong Province, China.. Lower levels of total T3 were strongly correlated with in-hospital mortality in patients with SCMP. A low T3 level might suggest poor prognosis in patients with SCMP.

Topics: Adult; Aged; Aged, 80 and over; Animals; Antibodies, Bacterial; Anxiety Disorders; Arecaceae; Arrhythmias, Cardiac; Autonomic Nervous System; Bacterial Proteins; Behavior Therapy; Burkholderia pseudomallei; Caco-2 Cells; Campylobacter; Campylobacter Infections; Carbazoles; Carcinoma, Non-Small-Cell Lung; Case-Control Studies; Chickens; Computer Simulation; Coumarins; COVID-19; Cross-Sectional Studies; Cyclin-Dependent Kinase 4; Cyclin-Dependent Kinase 6; Diabetes Mellitus, Type 1; Diarrhea; Dietary Supplements; Echocardiography; Educational Measurement; Electrocardiography, Ambulatory; Endoribonucleases; Exercise; Exercise Therapy; Faculty, Dental; Farms; Fear; Female; Flame Retardants; Florida; Gene Expression Regulation, Plant; Halogenated Diphenyl Ethers; Hearing Loss, Sudden; Heart Rate; HIV Infections; Hospital Mortality; Humans; Hypertension; Hypoglycemia; Immunity; In Situ Hybridization; Japan; Kinetics; Kuwait; Lung Neoplasms; Macaca mulatta; Macrophages; Male; Masked Hypertension; Melioidosis; Methyltransferases; Mice; Mice, Inbred BALB C; Middle Aged; Molecular Docking Simulation; Molecular Dynamics Simulation; Myocardium; Oryza; Patient Education as Topic; Peptide Hydrolases; Phosphoric Monoester Hydrolases; Piperidines; Plant Extracts; Plant Proteins; Platelet Count; Poultry Diseases; Prevalence; Protease Inhibitors; Protein Kinase Inhibitors; Protein Kinases; Rabbits; Rats; Rats, Sprague-Dawley; RAW 264.7 Cells; Resistance Training; Retrospective Studies; Risk Factors; SARS-CoV-2; Saudi Arabia; Severe acute respiratory syndrome-related coronavirus; Students; Substance-Related Disorders; Surveys and Questionnaires; Swine; Tachycardia, Ventricular; Takotsubo Cardiomyopathy; Thyroid Gland; Transcriptome; Transfection; Tropism; United Arab Emirates; Virulence; Virulence Factors; Writing

Topics: Benzoates; Clinical Trials as Topic; Diabetes Mellitus, Type 2; Dipeptidyl-Peptidase IV Inhibitors; Drug Therapy, Combination; Half-Life; Humans; Hypoglycemia; Hypoglycemic Agents; Piperidines; Uracil

This article reviews evidence supporting sodium glucose cotransporter 2 (SGLT2) inhibitor and dipeptidyl peptidase-4 (DPP-4) inhibitor combination therapy for management of type 2 diabetes mellitus (T2DM).. We conducted a nonsystematic review of the literature focusing on single-pill or fixed-dose combinations of SGLT2 inhibitors and DPP-4 inhibitors available in the United States.. SGLT2 inhibitors and DPP-4 inhibitors have complementary mechanisms of action that address several of the underlying pathophysiologic abnormalities present in T2DM without overlapping toxicities. The combination of these 2 agents has several advantages including a low risk of hypoglycemia, the potential for weight loss, the ability to coformulate into a pill with once-daily administration, and the possibility to use with other classes of glucose-lowering agents. Cardiovascular outcomes trials reported to date support the safety of the DPP-4 class and suggest possible cardioprotective effects for SGLT2 inhibitors - at least based on the first reported study that used empagliflozin. Recent clinical evidence shows that SGLT2 inhibitor/DPP-4 inhibitor therapy is an effective combination for T2DM treatment, providing glycated hemoglobin (HbA1c) reductions of 1.1 to 1.5%, and weight reductions of approximately 2 kg when added to metformin, which is its primary place in therapy.. The combination of an SGLT2 inhibitor/DPP-4 inhibitor is a safe and effective treatment choice for patients with T2DM who are unable to obtain adequate glycemic control with metformin therapy, cannot use metformin, or have a higher baseline HbA1c.. BP = blood pressure; CI = confidence interval; CVOT = cardiovascular outcomes; DKA = diabetic ketoacidosis; DPP-4 = dipeptidyl peptidase-4; EXAMINE = EXamination of cArdiovascular outcoMes with alogliptiN versus standard of carE in patients with type 2 diabetes mellitus and acute coronary syndrome; FDA = Food and Drug Administration; HbA1c = glycated hemoglobin; HR = hazard ratio; MACE = major adverse cardiovascular events; SAVOR-TIMI 53 = Saxagliptin Assessment of Vascular Outcomes Recorded in Patients with Type 2 Diabetes Mellitus; SBP = systolic blood pressure; SGLT2 = sodium glucose cotransporter 2; TECOS = Trial to Evaluate Cardiovascular Outcomes after Treatment with Sitagliptin; T2DM = type 2 diabetes mellitus; XR = extended release.

Topics: Adamantane; Benzhydryl Compounds; Blood Glucose; Canagliflozin; Diabetes Mellitus, Type 2; Dipeptides; Dipeptidyl-Peptidase IV Inhibitors; Drug Therapy, Combination; Glucosides; Humans; Hypoglycemia; Hypoglycemic Agents; Linagliptin; Metformin; Piperidines; Sitagliptin Phosphate; Sodium-Glucose Transporter 2 Inhibitors; Treatment Outcome; Uracil

Middle East Respiratory Syndrome (MERS) is a novel respiratory illness firstly reported in Saudi Arabia in 2012. It is caused by a new corona virus, called MERS corona virus (MERS-CoV). Most people who have MERS-CoV infection developed severe acute respiratory illness.. This work is done to determine the clinical characteristics and the outcome of intensive care unit (ICU) admitted patients with confirmed MERS-CoV infection.. This study included 32 laboratory confirmed MERS corona virus infected patients who were admitted into ICU. It included 20 (62.50%) males and 12 (37.50%) females. The mean age was 43.99 ± 13.03 years. Diagnosis was done by real-time reverse transcription polymerase chain reaction (rRT-PCR) test for corona virus on throat swab, sputum, tracheal aspirate, or bronchoalveolar lavage specimens. Clinical characteristics, co-morbidities and outcome were reported for all subjects.. Most MERS corona patients present with fever, cough, dyspnea, sore throat, runny nose and sputum. The presence of abdominal symptoms may indicate bad prognosis. Prolonged duration of symptoms before patients' hospitalization, prolonged duration of mechanical ventilation and hospital stay, bilateral radiological pulmonary infiltrates, and hypoxemic respiratory failure were found to be strong predictors of mortality in such patients. Also, old age, current smoking, smoking severity, presence of associated co-morbidities like obesity, diabetes mellitus, chronic heart diseases, COPD, malignancy, renal failure, renal transplantation and liver cirrhosis are associated with a poor outcome of ICU admitted MERS corona virus infected patients.. Plasma HO-1, ferritin, p21, and NQO1 were all elevated at baseline in CKD participants. Plasma HO-1 and urine NQO1 levels each inversely correlated with eGFR (. SnPP can be safely administered and, after its injection, the resulting changes in plasma HO-1, NQO1, ferritin, and p21 concentrations can provide information as to antioxidant gene responsiveness/reserves in subjects with and without kidney disease.. A Study with RBT-1, in Healthy Volunteers and Subjects with Stage 3-4 Chronic Kidney Disease, NCT0363002 and NCT03893799.. HFNC did not significantly modify work of breathing in healthy subjects. However, a significant reduction in the minute volume was achieved, capillary [Formula: see text] remaining constant, which suggests a reduction in dead-space ventilation with flows > 20 L/min. (ClinicalTrials.gov registration NCT02495675).. 3 组患者手术时间、术中显性失血量及术后 1 周血红蛋白下降量比较差异均无统计学意义（. 对于肥胖和超重的膝关节单间室骨关节炎患者，采用 UKA 术后可获满意短中期疗效，远期疗效尚需进一步随访观察。.. Decreased muscle strength was identified at both time points in patients with hEDS/HSD. The evolution of most muscle strength parameters over time did not significantly differ between groups. Future studies should focus on the effectiveness of different types of muscle training strategies in hEDS/HSD patients.. These findings support previous adverse findings of e-cigarette exposure on neurodevelopment in a mouse model and provide substantial evidence of persistent adverse behavioral and neuroimmunological consequences to adult offspring following maternal e-cigarette exposure during pregnancy. https://doi.org/10.1289/EHP6067.. This RCT directly compares a neoadjuvant chemotherapy regimen with a standard CROSS regimen in terms of overall survival for patients with locally advanced ESCC. The results of this RCT will provide an answer for the controversy regarding the survival benefits between the two treatment strategies.. NCT04138212, date of registration: October 24, 2019.. Results of current investigation indicated that milk type and post fermentation cooling patterns had a pronounced effect on antioxidant characteristics, fatty acid profile, lipid oxidation and textural characteristics of yoghurt. Buffalo milk based yoghurt had more fat, protein, higher antioxidant capacity and vitamin content. Antioxidant and sensory characteristics of T. If milk is exposed to excessive amounts of light, Vitamins B. The two concentration of ZnO nanoparticles in the ambient air produced two different outcomes. The lower concentration resulted in significant increases in Zn content of the liver while the higher concentration significantly increased Zn in the lungs (p < 0.05). Additionally, at the lower concentration, Zn content was found to be lower in brain tissue (p < 0.05). Using TEM/EDX we detected ZnO nanoparticles inside the cells in the lungs, kidney and liver. Inhaling ZnO NP at the higher concentration increased the levels of mRNA of the following genes in the lungs: Mt2 (2.56 fold), Slc30a1 (1.52 fold) and Slc30a5 (2.34 fold). At the lower ZnO nanoparticle concentration, only Slc30a7 mRNA levels in the lungs were up (1.74 fold). Thus the two air concentrations of ZnO nanoparticles produced distinct effects on the expression of the Zn-homeostasis related genes.. Until adverse health effects of ZnO nanoparticles deposited in organs such as lungs are further investigated and/or ruled out, the exposure to ZnO nanoparticles in aerosols should be avoided or minimised.

Topics: A549 Cells; Acetylmuramyl-Alanyl-Isoglutamine; Acinetobacter baumannii; Acute Lung Injury; Adaptor Proteins, Signal Transducing; Adenine; Adenocarcinoma; Adipogenesis; Administration, Cutaneous; Administration, Ophthalmic; Adolescent; Adsorption; Adult; Aeromonas hydrophila; Aerosols; Aged; Aged, 80 and over; Aging; Agriculture; Air Pollutants; Air Pollution; Airway Remodeling; Alanine Transaminase; Albuminuria; Aldehyde Dehydrogenase 1 Family; Algorithms; AlkB Homolog 2, Alpha-Ketoglutarate-Dependent Dioxygenase; Alzheimer Disease; Amino Acid Sequence; Ammonia; Ammonium Compounds; Anaerobiosis; Anesthetics, Dissociative; Anesthetics, Inhalation; Animals; Anti-Bacterial Agents; Anti-HIV Agents; Anti-Infective Agents; Anti-Inflammatory Agents; Antibiotics, Antineoplastic; Antibodies, Antineutrophil Cytoplasmic; Antibodies, Monoclonal, Humanized; Antifungal Agents; Antigens, Bacterial; Antigens, CD; Antigens, Differentiation, Myelomonocytic; Antimetabolites, Antineoplastic; Antineoplastic Agents; Antineoplastic Combined Chemotherapy Protocols; Antioxidants; Antitubercular Agents; Antiviral Agents; Apolipoproteins E; Apoptosis; Arabidopsis; Arabidopsis Proteins; Arsenic; Arthritis, Rheumatoid; Asthma; Atherosclerosis; ATP-Dependent Proteases; Attitude of Health Personnel; Australia; Austria; Autophagy; Axitinib; Bacteria; Bacterial Outer Membrane Proteins; Bacterial Proteins; Bacterial Toxins; Bacterial Typing Techniques; Bariatric Surgery; Base Composition; Bayes Theorem; Benzoxazoles; Benzylamines; beta Catenin; Betacoronavirus; Betula; Binding Sites; Biological Availability; Biological Oxygen Demand Analysis; Biomarkers; Biomarkers, Tumor; Biopsy; Bioreactors; Biosensing Techniques; Birth Weight; Blindness; Blood Chemical Analysis; Blood Gas Analysis; Blood Glucose; Blood Pressure; Blood Pressure Monitoring, Ambulatory; Blood-Brain Barrier; Blotting, Western; Body Mass Index; Body Weight; Bone and Bones; Bone Density; Bone Resorption; Borates; Brain; Brain Infarction; Brain Injuries, Traumatic; Brain Neoplasms; Breakfast; Breast Milk Expression; Breast Neoplasms; Bronchi; Bronchoalveolar Lavage Fluid; Buffaloes; Cadherins; Calcification, Physiologic; Calcium Compounds; Calcium, Dietary; Cannula; Caprolactam; Carbon; Carbon Dioxide; Carboplatin; Carcinogenesis; Carcinoma, Ductal; Carcinoma, Ehrlich Tumor; Carcinoma, Hepatocellular; Carcinoma, Non-Small-Cell Lung; Carcinoma, Pancreatic Ductal; Carcinoma, Renal Cell; Cardiovascular Diseases; Carps; Carrageenan; Case-Control Studies; Catalysis; Catalytic Domain; Cattle; CD8-Positive T-Lymphocytes; Cell Adhesion; Cell Cycle Proteins; Cell Death; Cell Differentiation; Cell Line; Cell Line, Tumor; Cell Movement; Cell Nucleus; Cell Phone Use; Cell Proliferation; Cell Survival; Cell Transformation, Neoplastic; Cell Transformation, Viral; Cells, Cultured; Cellulose; Chemical Phenomena; Chemoradiotherapy; Child; Child Development; Child, Preschool; China; Chitosan; Chlorocebus aethiops; Cholecalciferol; Chromatography, Liquid; Circadian Clocks; Circadian Rhythm; Circular Dichroism; Cisplatin; Citric Acid; Clinical Competence; Clinical Laboratory Techniques; Clinical Trials, Phase I as Topic; Clinical Trials, Phase II as Topic; Clostridioides difficile; Clostridium Infections; Coculture Techniques; Cohort Studies; Cold Temperature; Colitis; Collagen Type I; Collagen Type I, alpha 1 Chain; Collagen Type XI; Color; Connective Tissue Diseases; Copper; Coronary Angiography; Coronavirus 3C Proteases; Coronavirus Infections; Cost of Illness; Counselors; COVID-19; COVID-19 Testing; Creatine Kinase; Creatinine; Cross-Over Studies; Cross-Sectional Studies; Cryoelectron Microscopy; Cryosurgery; Crystallography, X-Ray; Cues; Cultural Competency; Cultural Diversity; Curriculum; Cyclic AMP Response Element-Binding Protein; Cyclin-Dependent Kinase Inhibitor p21; Cycloparaffins; Cysteine Endopeptidases; Cytokines; Cytoplasm; Cytoprotection; Databases, Factual; Denitrification; Deoxycytidine; Diabetes Complications; Diabetes Mellitus; Diabetes Mellitus, Experimental; Diabetes Mellitus, Type 1; Diabetes Mellitus, Type 2; Diagnosis, Differential; Diatoms; Diet; Diet, High-Fat; Dietary Exposure; Diffusion Magnetic Resonance Imaging; Diketopiperazines; Dipeptidyl Peptidase 4; Dipeptidyl-Peptidase IV Inhibitors; Disease Models, Animal; Disease Progression; Disease-Free Survival; DNA; DNA Damage; DNA Glycosylases; DNA Repair; DNA-Binding Proteins; DNA, Bacterial; DNA, Viral; Docetaxel; Dose Fractionation, Radiation; Dose-Response Relationship, Drug; Down-Regulation; Doxorubicin; Drosophila; Drosophila melanogaster; Drug Carriers; Drug Delivery Systems; Drug Liberation; Drug Repositioning; Drug Resistance, Bacterial; Drug Resistance, Multiple, Bacterial; Drug Resistance, Neoplasm; Drug Screening Assays, Antitumor; Drug Synergism; Drug Therapy, Combination; Edema; Edible Grain; Education, Graduate; Education, Medical, Graduate; Education, Pharmacy; Ehlers-Danlos Syndrome; Electron Transport Complex III; Electron Transport Complex IV; Electronic Nicotine Delivery Systems; Emergency Service, Hospital; Empathy; Emulsions; Endothelial Cells; Endurance Training; Energy Intake; Enterovirus A, Human; Environment; Environmental Monitoring; Enzyme Assays; Enzyme Inhibitors; Epithelial Cells; Epithelial-Mesenchymal Transition; Epoxide Hydrolases; Epoxy Compounds; Erythrocyte Count; Erythrocytes; Escherichia coli; Escherichia coli Infections; Escherichia coli Proteins; Esophageal Neoplasms; Esophageal Squamous Cell Carcinoma; Esophagectomy; Estrogens; Etanercept; Ethiopia; Ethnicity; Ethylenes; Exanthema; Exercise; Exercise Test; Exercise Tolerance; Extracellular Matrix; Extracorporeal Membrane Oxygenation; Eye Infections, Fungal; False Negative Reactions; Fatty Acids; Fecal Microbiota Transplantation; Feces; Female; Femur Neck; Fermentation; Ferritins; Fetal Development; Fibroblast Growth Factor-23; Fibroblast Growth Factors; Fibroblasts; Fibroins; Fish Proteins; Flavanones; Flavonoids; Focus Groups; Follow-Up Studies; Food Handling; Food Supply; Food, Formulated; Forced Expiratory Volume; Forests; Fractures, Bone; Fruit and Vegetable Juices; Fusobacteria; G1 Phase Cell Cycle Checkpoints; G2 Phase Cell Cycle Checkpoints; Gamma Rays; Gastrectomy; Gastrointestinal Microbiome; Gastrointestinal Stromal Tumors; Gefitinib; Gels; Gemcitabine; Gene Amplification; Gene Expression; Gene Expression Regulation; Gene Expression Regulation, Bacterial; Gene Expression Regulation, Neoplastic; Gene Expression Regulation, Plant; Gene Knockdown Techniques; Gene-Environment Interaction; Genotype; Germany; Glioma; Glomerular Filtration Rate; Glucagon; Glucocorticoids; Glycemic Control; Glycerol; Glycogen Synthase Kinase 3 beta; Glycolipids; Glycolysis; Goblet Cells; Gram-Negative Bacterial Infections; Granulocyte Colony-Stimulating Factor; Graphite; Greenhouse Effect; Guanidines; Haemophilus influenzae; HCT116 Cells; Health Knowledge, Attitudes, Practice; Health Personnel; Health Services Accessibility; Health Services Needs and Demand; Health Status Disparities; Healthy Volunteers; Heart Failure; Heart Rate; Heart Transplantation; Heart-Assist Devices; HEK293 Cells; Heme; Heme Oxygenase-1; Hemolysis; Hemorrhage; Hepatitis B; Hepatitis B e Antigens; Hepatitis B Surface Antigens; Hepatitis B virus; Hepatitis B, Chronic; Hepatocytes; Hexoses; High-Throughput Nucleotide Sequencing; Hippo Signaling Pathway; Histamine; Histamine Agonists; Histidine; Histone Deacetylase 2; HIV Infections; HIV Reverse Transcriptase; HIV-1; Homebound Persons; Homeodomain Proteins; Homosexuality, Male; Hospice and Palliative Care Nursing; HSP70 Heat-Shock Proteins; Humans; Hyaluronan Receptors; Hydrogen; Hydrogen Peroxide; Hydrogen-Ion Concentration; Hydrolysis; Hydroxymethylglutaryl-CoA Reductase Inhibitors; Hypoglycemia; Hypoglycemic Agents; Hypoxia; Idiopathic Interstitial Pneumonias; Imaging, Three-Dimensional; Imatinib Mesylate; Immunotherapy; Implementation Science; Incidence; INDEL Mutation; Induced Pluripotent Stem Cells; Industrial Waste; Infant; Infant, Newborn; Inflammation; Inflammation Mediators; Infliximab; Infusions, Intravenous; Inhibitory Concentration 50; Injections; Insecticides; Insulin-Like Growth Factor Binding Protein 5; Insulin-Secreting Cells; Interleukin-1; Interleukin-17; Interleukin-8; Internship and Residency; Intestines; Intracellular Signaling Peptides and Proteins; Ion Transport; Iridaceae; Iridoid Glucosides; Islets of Langerhans Transplantation; Isodon; Isoflurane; Isotopes; Italy; Joint Instability; Ketamine; Kidney; Kidney Failure, Chronic; Kidney Function Tests; Kidney Neoplasms; Kinetics; Klebsiella pneumoniae; Knee Joint; Kruppel-Like Factor 4; Kruppel-Like Transcription Factors; Lactate Dehydrogenase 5; Laparoscopy; Laser Therapy; Lasers, Semiconductor; Lasers, Solid-State; Laurates; Lead; Leukocyte L1 Antigen Complex; Leukocytes, Mononuclear; Light; Lipid Peroxidation; Lipopolysaccharides; Liposomes; Liver; Liver Cirrhosis; Liver Neoplasms; Liver Transplantation; Locomotion; Longitudinal Studies; Lopinavir; Lower Urinary Tract Symptoms; Lubricants; Lung; Lung Diseases, Interstitial; Lung Neoplasms; Lymphocyte Activation; Lymphocytes, Tumor-Infiltrating; Lymphoma, Mantle-Cell; Lysosomes; Macrophages; Male; Manganese Compounds; MAP Kinase Kinase 4; Mass Screening; Maternal Health; Medicine, Chinese Traditional; Melanoma, Experimental; Memantine; Membrane Glycoproteins; Membrane Proteins; Mesenchymal Stem Cell Transplantation; Metal Nanoparticles; Metalloendopeptidases; Metalloporphyrins; Methadone; Methane; Methicillin-Resistant Staphylococcus aureus; Mexico; Mice; Mice, Inbred BALB C; Mice, Inbred C57BL; Mice, Inbred ICR; Mice, Knockout; Mice, Nude; Mice, SCID; Mice, Transgenic; Microarray Analysis; Microbial Sensitivity Tests; Microbiota; Micronutrients; MicroRNAs; Microscopy, Confocal; Microsomes, Liver; Middle Aged; Milk; Milk, Human; Minority Groups; Mitochondria; Mitochondrial Membranes; Mitochondrial Proteins; Models, Animal; Models, Molecular; Molecular Conformation; Molecular Docking Simulation; Molecular Dynamics Simulation; Molecular Epidemiology; Molecular Structure; Molecular Weight; Multilocus Sequence Typing; Multimodal Imaging; Muscle Strength; Muscle, Skeletal; Muscular Diseases; Mutation; Mycobacterium tuberculosis; Myocardial Stunning; Myristates; NAD(P)H Dehydrogenase (Quinone); Nanocomposites; Nanogels; Nanoparticles; Nanotechnology; Naphthalenes; Nasal Cavity; National Health Programs; Necrosis; Needs Assessment; Neoadjuvant Therapy; Neonicotinoids; Neoplasm Invasiveness; Neoplasm Metastasis; Neoplasm Proteins; Neoplasm Recurrence, Local; Neoplasm Staging; Neoplasm Transplantation; Neoplasms; Neoplastic Stem Cells; Netherlands; Neuroblastoma; Neuroprotective Agents; Neutrophils; NF-kappa B; NFATC Transcription Factors; Nicotiana; Nicotine; Nitrates; Nitrification; Nitrites; Nitro Compounds; Nitrogen; Nitrogen Dioxide; North Carolina; Nuclear Magnetic Resonance, Biomolecular; Nuclear Proteins; Nucleic Acid Hybridization; Nucleosomes; Nutrients; Obesity; Obesity, Morbid; Oceans and Seas; Oncogene Protein v-akt; Oncogenes; Oocytes; Open Reading Frames; Osteoclasts; Osteogenesis; Osteoporosis; Osteoporosis, Postmenopausal; Outpatients; Ovarian Neoplasms; Ovariectomy; Overweight; Oxazines; Oxidants; Oxidation-Reduction; Oxidative Stress; Oxides; Oxidoreductases; Oxygen; Oxygen Inhalation Therapy; Oxygenators, Membrane; Ozone; Paclitaxel; Paenibacillus; Pain Measurement; Palliative Care; Pancreatic Neoplasms; Pandemics; Parasympathetic Nervous System; Particulate Matter; Pasteurization; Patient Preference; Patient Satisfaction; Pediatric Obesity; Permeability; Peroxiredoxins; Peroxynitrous Acid; Pharmaceutical Services; Pharmacists; Pharmacy; Phaseolus; Phenotype; Phoeniceae; Phosphates; Phosphatidylinositol 3-Kinases; Phospholipid Transfer Proteins; Phospholipids; Phosphorus; Phosphorylation; Photoperiod; Photosynthesis; Phylogeny; Physical Endurance; Physicians; Pilot Projects; Piperidines; Pituitary Adenylate Cyclase-Activating Polypeptide; Plant Extracts; Plant Leaves; Plant Proteins; Plant Roots; Plaque, Atherosclerotic; Pneumonia; Pneumonia, Viral; Point-of-Care Testing; Polyethylene Glycols; Polymers; Polysorbates; Pore Forming Cytotoxic Proteins; Positron Emission Tomography Computed Tomography; Positron-Emission Tomography; Postprandial Period; Poverty; Pre-Exposure Prophylaxis; Prediabetic State; Predictive Value of Tests; Pregnancy; Pregnancy Trimester, First; Pregnancy, High-Risk; Prenatal Exposure Delayed Effects; Pressure; Prevalence; Primary Graft Dysfunction; Primary Health Care; Professional Role; Professionalism; Prognosis; Progression-Free Survival; Prolactin; Promoter Regions, Genetic; Proof of Concept Study; Proportional Hazards Models; Propylene Glycol; Prospective Studies; Prostate; Protein Binding; Protein Biosynthesis; Protein Isoforms; Protein Kinase Inhibitors; Protein Phosphatase 2; Protein Processing, Post-Translational; Protein Serine-Threonine Kinases; Protein Structure, Tertiary; Protein Transport; Proteoglycans; Proteome; Proto-Oncogene Proteins c-akt; Proto-Oncogene Proteins c-myc; Proto-Oncogene Proteins c-ret; Proto-Oncogene Proteins p21(ras); Proton Pumps; Protons; Protoporphyrins; Pseudomonas aeruginosa; Pseudomonas fluorescens; Pulmonary Artery; Pulmonary Disease, Chronic Obstructive; Pulmonary Gas Exchange; Pulmonary Veins; Pyrazoles; Pyridines; Pyrimidines; Qualitative Research; Quinoxalines; Rabbits; Random Allocation; Rats; Rats, Sprague-Dawley; Rats, Wistar; Receptors, Histamine H3; Receptors, Immunologic; Receptors, Transferrin; Recombinant Proteins; Recurrence; Reference Values; Referral and Consultation; Regional Blood Flow; Registries; Regulon; Renal Insufficiency, Chronic; Reperfusion Injury; Repressor Proteins; Reproducibility of Results; Republic of Korea; Research Design; Resistance Training; Respiration, Artificial; Respiratory Distress Syndrome; Respiratory Insufficiency; Resuscitation; Retinal Dehydrogenase; Retreatment; Retrospective Studies; Reverse Transcriptase Inhibitors; Rhinitis, Allergic; Ribosomal Proteins; Ribosomes; Risk Assessment; Risk Factors; Ritonavir; Rivers; RNA Interference; RNA-Seq; RNA, Messenger; RNA, Ribosomal, 16S; RNA, Small Interfering; Rosuvastatin Calcium; Rural Population; Saccharomyces cerevisiae; Saccharomyces cerevisiae Proteins; Salivary Ducts; Salivary Gland Neoplasms; San Francisco; SARS-CoV-2; Satiation; Satiety Response; Schools; Schools, Pharmacy; Seasons; Seawater; Selection, Genetic; Sequence Analysis, DNA; Serine-Threonine Kinase 3; Sewage; Sheep; Sheep, Domestic; Shock, Hemorrhagic; Signal Transduction; Silver; Silymarin; Single Photon Emission Computed Tomography Computed Tomography; Sirolimus; Sirtuin 1; Skin; Skin Neoplasms; Skin Physiological Phenomena; Sleep Initiation and Maintenance Disorders; Social Class; Social Participation; Social Support; Soil; Soil Microbiology; Solutions; Somatomedins; Soot; Specimen Handling; Spectrophotometry, Ultraviolet; Spectroscopy, Fourier Transform Infrared; Spectrum Analysis; Spinal Fractures; Spirometry; Staphylococcus aureus; STAT1 Transcription Factor; STAT3 Transcription Factor; Streptomyces coelicolor; Stress, Psychological; Stroke; Stroke Volume; Structure-Activity Relationship; Students, Medical; Students, Pharmacy; Substance Abuse Treatment Centers; Sulfur Dioxide; Surface Properties; Surface-Active Agents; Surveys and Questionnaires; Survival Analysis; Survival Rate; Survivin; Sweden; Swine; Swine, Miniature; Sympathetic Nervous System; T-Lymphocytes, Regulatory; Talaromyces; Tandem Mass Spectrometry; tau Proteins; Telemedicine; Telomerase; Telomere; Telomere Homeostasis; Temperature; Terminally Ill; Th1 Cells; Thiamethoxam; Thiazoles; Thiophenes; Thioredoxin Reductase 1; Thrombosis; Thulium; Thyroid Cancer, Papillary; Thyroid Carcinoma, Anaplastic; Thyroid Neoplasms; Time Factors; Titanium; Tomography, Emission-Computed, Single-Photon; Tomography, X-Ray Computed; TOR Serine-Threonine Kinases; Transcription Factor AP-1; Transcription Factors; Transcription, Genetic; Transcriptional Activation; Transcriptome; Transforming Growth Factor beta1; Transistors, Electronic; Translational Research, Biomedical; Transplantation Tolerance; Transplantation, Homologous; Transportation; Treatment Outcome; Tretinoin; Tuberculosis, Multidrug-Resistant; Tuberculosis, Pulmonary; Tubulin Modulators; Tumor Microenvironment; Tumor Necrosis Factor Inhibitors; Tumor Necrosis Factor-alpha; Twins; Ultrasonic Therapy; Ultrasonography; Ultraviolet Rays; United States; Up-Regulation; Uranium; Urethra; Urinary Bladder; Urodynamics; Uromodulin; Uveitis; Vasoconstrictor Agents; Ventricular Function, Left; Vero Cells; Vesicular Transport Proteins; Viral Nonstructural Proteins; Visual Acuity; Vital Capacity; Vitamin D; Vitamin D Deficiency; Vitamin K 2; Vitamins; Volatilization; Voriconazole; Waiting Lists; Waste Disposal, Fluid; Wastewater; Water Pollutants, Chemical; Whole Genome Sequencing; Wine; Wnt Signaling Pathway; Wound Healing; Wounds and Injuries; WW Domains; X-linked Nuclear Protein; X-Ray Diffraction; Xanthines; Xenograft Model Antitumor Assays; YAP-Signaling Proteins; Yogurt; Young Adult; Zebrafish; Zebrafish Proteins; Ziziphus

Dipeptidyl peptidase-4 (DPP-4) inhibitors such as alogliptin are becoming more widely established as treatment options for patients with type 2 diabetes (T2DM) because of their ability to improve glycemic control without increasing the risk of hypoglycemia or weight gain. New therapies with improved safety profiles are needed, especially because of the chronic and progressive nature of T2DM.. In this article, the overall safety and tolerability of alogliptin are evaluated based upon a review of the literature. In particular, adverse events (AEs) that have been of interest for the DPP-4 class of drugs, such as the risk of major cardiovascular (CV) events and acute pancreatitis, will be investigated in detail.. Alogliptin is generally well-tolerated in a broad range of patient populations including different ethnic groups and the elderly. In the pivotal EXAMINE clinical trial, alogliptin was found not to be associated with an increased risk of major CV events or acute pancreatitis/pancreatic cancer.

Topics: Aged; Animals; Diabetes Mellitus, Type 2; Dipeptidyl-Peptidase IV Inhibitors; Humans; Hypoglycemia; Hypoglycemic Agents; Piperidines; Uracil

As type 2 diabetes mellitus (T2DM) progresses, most patients will require insulin replacement therapy. Whether oral antidiabetic drug (OAD) therapy should be retained when initiating insulin is still debated. While the rationale to keep metformin with insulin is strong (mostly as an insulin-sparing agent to limit weight gain), the evidence is less clear for other OADs. In particular, the question now comes up what the expected benefit could be of combining the newer agents, such as the dipeptidyl peptidase-4 (DPP-4) inhibitors with insulin. Additionally, when metformin is no longer a treatment option, as in the case of patients with severe renal impairment, insulin is often used as monotherapy, with little evidence of benefit in maintaining other OADs. In this specific situation, it is also of interest to evaluate the potential benefit of combined treatment with a DPP-4 inhibitor and insulin. Among the classic limitations of insulin therapy in patients with T2DM, hypoglycemia remains a major barrier to glycemic control, along with weight gain exacerbation. The oral DPP-4 inhibitors improve glycemic control by increasing the sensitivity of the islet cells to glucose, and thus are not associated with an increased risk for hypoglycemia and are weight neutral. In addition to the expected benefits associated with limiting insulin dose and regimen complexity, the specific advantages the DPP-4 inhibitor drug class on hypoglycemia and weight gain could justify combining DPP-4 inhibitors with insulin; additionally, a DPP-4 inhibitor may be of special value to decrease glycemic excursions that are not properly addressed by basal insulin therapy and metformin use, even after optimizing titration of the basal insulin. However, given the common original perception that treatment with DPP-4 inhibitors may be less beneficial with increasing disease progression because of the loss of β-cell function, the potential relevance of these agents in the setting of advanced T2DM treated with insulin was not necessarily anticipated. Promising data from studies on the use of these new agents in insulin-treated patients with T2DM have started to emerge. Our article provides a comprehensive overview of the currently available evidence from controlled randomized clinical trials and we discuss the potential role of DPP-4 inhibitors in the this setting. Further clinical experience will allow to fully assess the positioning of these agents in insulin-treated T2DM populations.

Topics: Adamantane; Body Weight; Diabetes Complications; Diabetes Mellitus, Type 2; Dipeptides; Dipeptidyl-Peptidase IV Inhibitors; Disease Progression; Drug Therapy, Combination; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Linagliptin; Nitriles; Piperidines; Purines; Pyrazines; Pyrrolidines; Quinazolines; Renal Insufficiency, Chronic; Sitagliptin Phosphate; Triazoles; Uracil; Vildagliptin

Topics: Aged; Azepines; Blood Glucose; Carbamates; Diabetes Mellitus, Type 2; Drug Interactions; Humans; Hypnotics and Sedatives; Hypoglycemia; Hypoglycemic Agents; Male; Piperidines; Sleep Wake Disorders

Topics: 1-Deoxynojirimycin; Acarbose; Aged; Blood Glucose; Carbamates; Contraindications; Cyclohexanes; Diabetes Mellitus, Type 2; Drug Therapy, Combination; Enzyme Inhibitors; Fasting; Follow-Up Studies; Germany; Glucosamine; Glyburide; Glycated Hemoglobin; Glycoside Hydrolase Inhibitors; Humans; Hypoglycemia; Hypoglycemic Agents; Imino Pyranoses; Insulin; Metformin; Middle Aged; Nateglinide; Obesity; Patient Compliance; Phenylalanine; Pioglitazone; Piperidines; Practice Guidelines as Topic; Risk Factors; Rosiglitazone; Sulfonylurea Compounds; Thiazolidinediones; Time Factors

Topics: Carbamates; Diabetes Mellitus, Type 2; Humans; Hypoglycemia; Hypoglycemic Agents; Patient Compliance; Piperidines; Postprandial Period; Randomized Controlled Trials as Topic

In about 25% of type 2 diabetes patients, good diabetes control is not attainable with oral blood-glucose lowering drugs. Furthermore, in many people with diabetes the disease deteriorates, despite the use of blood-glucose lowering medication, due to the decline of the pancreatic beta cells. The development of new drugs, such as repaglinide, is therefore important. Repaglinide is an insulin secretion enhancer with a different mechanism of action to the sulphonylureas, which means it does not continuously stimulate insulin secretion. The tablets should be taken with each meal. After oral ingestion repaglinide is resorbed quickly, with a half-life of between 30 minutes to an hour. In clinical trials repaglinide has been found to be equally effective as glibenclamide. Repaglinide has been found to be particularly effective in sulphonylurea-naïve patients. Skipping the meal plus tablet combination results in less frequent hypoglycaemic symptoms compared to glibenclamide. Repaglinide results in greater reductions in postprandial glucose levels than glibenclamide. It does not affect insulin resistance. Long-term data are lacking, both with regard to efficacy and side effects. Repaglinide deserves a place in the diabetes treatment of newly-diagnosed type 2 diabetes patients who are well-informed about their disease, as well as in patients with renal failure. It should also be considered for patients whose diabetes is poorly controlled on metformin monotherapy.

Topics: Carbamates; Diabetes Mellitus, Type 2; Drug Therapy, Combination; Glyburide; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Insulin Secretion; Metformin; Piperidines; Therapeutic Equivalency

The complications of diabetes mellitus, arising from inadequate glycemic control, have serious consequences for society as well as individuals. It is now urged that tight glycemic control be the goal for all patients, regardless of type of diabetes. Unfortunately, hypoglycemia can be a consequence of this aggressive approach. Treatment with a combination of agents and improved therapies are needed to maintain glycemic balance in patients. A better understanding of the pathophysiology of diabetes has yielded many treatment options based on various mechanisms of action. The sulfonyluereas, repaglinide, metformin, acarbose and the thiazolidinediones are effective in decreasing fasting plasma glucose levels, but their limitations may include adverse effects, such as weight gain and hypoglycemia, and an inability to modify some of the important comorbidities of diabetes. Therapies aimed at treating mealtime hyperglycemia are gaining attention. One promising investigational agent in this category is nateglinide. Early data suggest that its rapid onset and short duration of action result in increased early mealtime insulin release, reduced mealtime glucose excursions, and improved glycemic control.

Topics: Acarbose; Administration, Oral; Blood Glucose; Carbamates; Cyclohexanes; Diabetes Mellitus, Type 2; Drug Combinations; Drug Therapy, Combination; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Insulin Secretion; Insulin-Secreting Cells; Metformin; Nateglinide; Phenylalanine; Piperidines; Randomized Controlled Trials as Topic; Thiazolidinediones; United States; Weight Gain

Type 2 diabetes mellitus is characterised by abnormal beta-cell function (present at the time of diagnosis) that is often associated with insulin resistance. An important and consistent pathophysiological finding is the failure to produce adequate increments in insulin secretion in response to carbohydrate intake. Therefore, insulin secretagogue therapy, particularly when focused on prandial glucose regulation, is a logical approach to treatment because it addresses one of the most fundamental pathophysiological aspects of the disease. However, the traditional secretagogues-the sulphonylureas--have long been associated with the unwanted effect of hypoglycaemia. This is particularly likely to occur when drugs with lengthy plasma half-lives, prolonged drug-receptor interactions, active metabolites or a reliance on renal clearance are used. The problem is most prevalent in elderly patients, where sulphonylurea-induced hypoglycaemia may be related to failure to comply with strict mealtimes or the need for supplementary food intake, often in the context of compromised renal function. Data from large-scale outcome studies demonstrate that when tight glycaemic control is achieved through aggressive antidiabetic therapy, late diabetic complications can be significantly reduced. However, the pursuit of stricter HbA1c targets with more aggressive interventions may increase the risk of hypoglycaemia. This is an irony because the clinical need to avoid hypoglycaemia and patients' apprehension of it present barriers to the achievement of beneficial glycaemic targets. However, an increased risk of hypoglycaemia may not be inevitable with insulin secretagogue therapy. The recently introduced carbamoylmethyl benzoic acid derivative, repaglinide, has pharmacological properties that are well suited to its intended role as a prandial glucose regulator. When taken prior to main meals, the rapid onset and relatively short duration of action of repaglinide aid disposal of the mealtime glucose load, without continued stimulation of pancreatic beta-cells in the postprandial fasting period. Repaglinide is also characterised by hepatic metabolism and elimination, which is an advantage in the context of impaired renal function. Prandial glucose regulation with repaglinide selectively increases insulin secretion, and hence limits glucose excursions, in the prandial phase. If a meal is omitted, so too is the corresponding dose. This more flexible approach to the management of Type 2

Topics: Blood Glucose; Carbamates; Diabetes Mellitus, Type 2; Drug Therapy, Combination; Eating; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Insulin Secretion; Patient Compliance; Piperidines; Risk Factors; Sulfonylurea Compounds; Time Factors

Repaglinide, an insulinotropic benzoic acid derivative, has been tested extensively in the preclinical and clinical setting for safety and tolerability. In preclinical safety trials, no clinically relevant laboratory or histopathological changes were found and repaglinide was not found to be genotoxic, immunogenic, teratogenic or tumorigenic at levels 50 times greater than the exposure in humans. In an ascending-dose tolerability study in Type 2 diabetic patients, no clinically relevant changes in liver enzymes or ECG occurred during the trial. A total of five active-controlled, long-term trials of identical design have been carried out (with 12 months of maintenance on a fixed, pretitrated dose), including 1228 patients on repaglinide and 597 on sulphonylureas, 417 of whom were on glibenclamide. The most common adverse event in the phase II studies was hypoglycaemia. The frequency of hypoglycaemia was identical for repaglinide and sulphonylureas; however, fewer nocturnal hypoglycaemic events were observed with repaglinide and no increase in the frequency of hypoglycaemic events occurred in elderly patients (> 65 years) compared with younger patients. Severe reactions (assistance required) were approximately twice as frequent in the comparator group. During these studies, two serious hypoglycaemic reactions were reported (coma, seizure or hospitalization), both occurring in patients on glibenclamide. The frequency of serious adverse events and serious cardiovascular events was comparable between repaglinide and sulphonylureas.

Topics: Aged; Animals; Carbamates; Diabetes Mellitus, Type 2; Humans; Hypoglycemia; Hypoglycemic Agents; Piperidines; Randomized Controlled Trials as Topic

Repaglinide is a new oral blood glucose lowering agent, a member of the carbamoylmethyl benzoic acid (CMBA) family. Its mechanism of action is partly similar to that of the sulphonylurea: the release of insulin from the pancreatic beta cells is stimulated by closure of ATP-dependent potassium channels. However, repaglinide regulates these channels via a different binding site on the beta cell than glibenclamide, and the drug does not cause insulin release in the absence of glucose, or during voltage-clamping. After oral administration the drug is rapidly absorbed and eliminated. It is therefore used in a meal-related dosing regimen; repaglinide is taken with each main meal. This meal-related use may give a more physiological mimick of daytime insulin requirement than once-daily or twice-daily use of sulphonylurea. Patients using repaglinide are less likely to develop hypoglycaemic symptoms when they miss or postpone a meal in comparison with patients on glibenclamide treatment. In long-term comparative phase 3 clinical studies it was found that repaglinide is equally effective in maintaining glycaemic control as existing sulphonylurea, but it gives significantly better control of postprandial blood glucose levels. Repaglinide can be used as monotherapy both in obese and non-obese type 2 diabetic patients, and is also very effective in combination with drugs like metformin or thiazolidines. Because of its excretion through liver and bile it is also an attractive drug for diabetic patients with diminished kidney function, especially the elderly diabetic. Although the overall incidence of hypoglycaemia was similar during use of repaglinide and of sulphonylurea, fewer serious hypoglycaemic episodes were observed in repaglinide-treated patients.

Topics: Administration, Oral; Blood Glucose; Carbamates; Diabetes Mellitus, Type 2; Feeding Behavior; Humans; Hypoglycemia; Hypoglycemic Agents; Intestinal Absorption; Metabolic Clearance Rate; Piperidines

This open-label, parallel-group, exploratory study examined the effects of two dipeptidyl peptidase 4 (DPP4) inhibitors on glycemic variability (GV) in patients with type 2 diabetes.. Randomized patients with glycated hemoglobin A1c of at least 6.5% to less than 8.5% received trelagliptin 100 mg (n = 13) once weekly or alogliptin 25 mg (n = 14) once daily for 29 days. Continuous glucose monitoring was performed before the start of the treatment period (baseline) and from day 21 to 29, inclusive. The primary endpoint was change from baseline in the standard deviation (SD) of 24-h blood glucose values, measured daily for 7 days (day 22-28) of the treatment period. Secondary and additional efficacy endpoints included changes in glycemic parameters and the rate of DPP4 inhibition, respectively. Adverse events (AEs) were monitored to assess safety.. Mean change from baseline in the SD of 24-h blood glucose (95% confidence interval) at day 28 was - 7.35 (- 15.13, 0.44) for trelagliptin and - 11.63 (- 18.67, - 4.59) for alogliptin. In both treatment groups, glycemic parameters improved and the rate of DPP4 inhibition was maintained. Three patients reported AEs; no severe treatment-emergent AEs were reported in either group.. Once-weekly trelagliptin and once-daily alogliptin improved glycemic control and reduced GV without inducing hypoglycemia.. ClinicalTrials.gov (NCT02771093) and JAPIC (JapicCTI-163250).. Takeda Pharmaceutical Company, Ltd.

Topics: Aged; Blood Glucose; Blood Glucose Self-Monitoring; Diabetes Mellitus, Type 2; Dipeptidyl-Peptidase IV Inhibitors; Female; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Middle Aged; Pilot Projects; Piperidines; Uracil

Glinides are antidiabetic drugs that enhance the early phase of insulin secretion, but have been considered to be less effective at lowering blood glucose than sulfonylureas. However, glinides show a lower risk of hypoglycemia and a greater effect on postprandial hyperglycemia, and are particularly recommended for use in elderly patients with type 2 diabetes. We investigated the efficacy and safety of repaglinide compared with sulfonylurea for the treatment of elderly patients.. In the present multicenter, prospective, randomized, open-label, controlled trial, 57 elderly lean patients with type 2 diabetes who were being treated with sulfonylureas were studied. They were either switched to repaglinide (Repa group) or continued a sulfonylurea (SU group) for 12 weeks. The primary outcome comprised the change in glycemic control, and among the secondary outcomes was the presence of hypoglycemia and drug compliance.. Although glycated hemoglobin (HbA1c) was not significantly different between the two groups (SU +0.02% vs Repa -0.07%), greater improvements in the glycated albumin (GA) and GA to HbA1c ratio (GA/HbA1c) were observed in the Repa group (ΔGA, SU +0.12% vs Repa -1.15%; ΔGA/HbA1c, SU +0.01 vs Repa -0.13; each P < 0.01) without increasing hypoglycemia. When the Repa group was subdivided according to whether GA improved, the SU dose before switching to repaglinide was significantly smaller and the homeostatic model assessment of β-cell function was significantly higher in the GA improvement subgroup.. Switching from SU to Repa improved GA and GA/HbA1c, and had favorable effects on glucose fluctuation in elderly patients with type 2 diabetes.

Topics: Aged; Aged, 80 and over; Biomarkers; Blood Glucose; Carbamates; Diabetes Mellitus, Type 2; Female; Follow-Up Studies; Glycated Hemoglobin; Humans; Hyperglycemia; Hypoglycemia; Hypoglycemic Agents; Male; Middle Aged; Piperidines; Prognosis; Prospective Studies; Sulfonylurea Compounds

This randomized, double-blind, phase III study evaluated the efficacy and safety of once-daily treatment with alogliptin (25 mg once daily), alone or with metformin hydrochloride (500 mg once daily or 250 mg twice daily), in Japanese patients with type 2 diabetes. The primary endpoint was change in glycated haemoglobin (HbA1c) from baseline to the end of treatment (week 24). The least squares (LS) mean (standard error) change in HbA1c from baseline to the end of treatment (week 24) was 0.16 (0.072)% in alogliptin alone, -0.49 (0.049)% in alogliptin/metformin once daily, and -0.60 (0.049)% in alogliptin/metformin twice daily. The LS mean difference in HbA1c change from baseline between alogliptin/metformin once daily and alogliptin alone (alogliptin/metformin once daily minus alogliptin alone) was -0.65% (95% confidence interval [CI] -0.821, -0.480) and between alogliptin/metformin once daily and twice daily (once daily minus twice daily) was 0.11% (95% CI -0.026, 0.247). The overall frequency of adverse events was similar among the groups. This study showed that the efficacy of alogliptin/metformin once daily was superior to alogliptin alone and non-inferior to alogliptin/metformin twice daily, and that alogliptin/metformin once daily was safe and well tolerated in Japanese patients with type 2 diabetes.

Topics: Acute Disease; Aged; Blood Glucose; Diabetes Mellitus, Type 2; Double-Blind Method; Drug Administration Schedule; Drug Therapy, Combination; Female; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Japan; Male; Metformin; Middle Aged; Nasopharyngitis; Pancreatitis; Piperidines; Treatment Outcome; Uracil

To investigate relationships between glycated haemoglobin (HbA1c) and reported hypoglycaemia and risk of major adverse cardiovascular events (MACE).. The EXAMINE trial randomized 5380 patients with type 2 diabetes (T2DM) and a recent acute coronary syndrome (ACS) event, in 49 countries, to double-blind treatment with alogliptin or placebo in addition to standard of care. We used Cox proportional hazards models to analyse relationships among MACE, HbA1c levels and hypoglycaemic events.. Patients randomized to alogliptin achieved lower HbA1c levels than the placebo group in all baseline HbA1c categories without differences in hypoglycaemia rates. No systematic change was found in MACE rates according to baseline HbA1c (P. There were no relationships between baseline HbA1c levels or HbA1c levels after 1 month of treatment and the risk of MACE. Alogliptin improved glycaemic control without increasing hypoglycaemia. Reported events of hypoglycaemia and serious hypoglycaemia were associated with MACE. These data underscore the safety of alogliptin in improving glycaemic control in T2DM post-ACS. Further study of hypoglycaemia as an independent risk factor for MACE in patients with T2DM and coronary disease is needed.

Topics: Acute Coronary Syndrome; Cardiovascular Diseases; Cohort Studies; Combined Modality Therapy; Diabetes Mellitus, Type 2; Diabetic Angiopathies; Diabetic Cardiomyopathies; Dipeptidyl-Peptidase IV Inhibitors; Double-Blind Method; Drug Resistance; Drug Therapy, Combination; Female; Glycated Hemoglobin; Humans; Hyperglycemia; Hypoglycemia; Hypoglycemic Agents; Incidence; Male; Middle Aged; Piperidines; Risk Factors; Secondary Prevention; Severity of Illness Index; Uracil

This study evaluated the efficacy and safety of 26 weeks of twice-daily (BID) alogliptin + metformin fixed-dose combination (FDC) therapy in Asian patients with type 2 diabetes. Patients aged 18 to 75 years with hemoglobin A1c (HbA1c) of 7.5% to 10.0% after ≥2 months of diet and exercise and a 4-week placebo run-in were enrolled. Eligible patients were randomized (1:1:1:1) to placebo, alogliptin 12.5 mg BID, metformin 500 mg BID or alogliptin 12.5 mg plus metformin 500 mg FDC BID. The primary endpoint was change in HbA1c from baseline to end of treatment (Week 26). In total, 647 patients were randomized. The least-squares mean change in HbA1c from baseline to Week 26 was -0.19% with placebo, -0.86% with alogliptin, -1.04% with metformin and -1.53% with alogliptin + metformin FDC. Alogliptin + metformin FDC was significantly more effective ( P  < .0001) in lowering HbA1c than either alogliptin or metformin alone. The safety profile of alogliptin + metformin FDC was similar to that of the individual components alogliptin and metformin. The study demonstrated that treatment with alogliptin + metformin FDC BID resulted in better glycaemic control than either monotherapy and was well tolerated in Asian patients with type 2 diabetes.

Topics: China; Combined Modality Therapy; Diabetes Mellitus, Type 2; Diet, Diabetic; Dipeptidyl-Peptidase IV Inhibitors; Drug Therapy, Combination; Exercise; Glycated Hemoglobin; Humans; Hyperglycemia; Hypoglycemia; Hypoglycemic Agents; Immunity, Mucosal; Incidence; Malaysia; Metformin; Middle Aged; Piperidines; Republic of Korea; Respiratory Tract Infections; Taiwan; Uracil

Middle East Respiratory Syndrome (MERS) is a novel respiratory illness firstly reported in Saudi Arabia in 2012. It is caused by a new corona virus, called MERS corona virus (MERS-CoV). Most people who have MERS-CoV infection developed severe acute respiratory illness.. This work is done to determine the clinical characteristics and the outcome of intensive care unit (ICU) admitted patients with confirmed MERS-CoV infection.. This study included 32 laboratory confirmed MERS corona virus infected patients who were admitted into ICU. It included 20 (62.50%) males and 12 (37.50%) females. The mean age was 43.99 ± 13.03 years. Diagnosis was done by real-time reverse transcription polymerase chain reaction (rRT-PCR) test for corona virus on throat swab, sputum, tracheal aspirate, or bronchoalveolar lavage specimens. Clinical characteristics, co-morbidities and outcome were reported for all subjects.. Most MERS corona patients present with fever, cough, dyspnea, sore throat, runny nose and sputum. The presence of abdominal symptoms may indicate bad prognosis. Prolonged duration of symptoms before patients' hospitalization, prolonged duration of mechanical ventilation and hospital stay, bilateral radiological pulmonary infiltrates, and hypoxemic respiratory failure were found to be strong predictors of mortality in such patients. Also, old age, current smoking, smoking severity, presence of associated co-morbidities like obesity, diabetes mellitus, chronic heart diseases, COPD, malignancy, renal failure, renal transplantation and liver cirrhosis are associated with a poor outcome of ICU admitted MERS corona virus infected patients.. Plasma HO-1, ferritin, p21, and NQO1 were all elevated at baseline in CKD participants. Plasma HO-1 and urine NQO1 levels each inversely correlated with eGFR (. SnPP can be safely administered and, after its injection, the resulting changes in plasma HO-1, NQO1, ferritin, and p21 concentrations can provide information as to antioxidant gene responsiveness/reserves in subjects with and without kidney disease.. A Study with RBT-1, in Healthy Volunteers and Subjects with Stage 3-4 Chronic Kidney Disease, NCT0363002 and NCT03893799.. HFNC did not significantly modify work of breathing in healthy subjects. However, a significant reduction in the minute volume was achieved, capillary [Formula: see text] remaining constant, which suggests a reduction in dead-space ventilation with flows > 20 L/min. (ClinicalTrials.gov registration NCT02495675).. 3 组患者手术时间、术中显性失血量及术后 1 周血红蛋白下降量比较差异均无统计学意义（. 对于肥胖和超重的膝关节单间室骨关节炎患者，采用 UKA 术后可获满意短中期疗效，远期疗效尚需进一步随访观察。.. Decreased muscle strength was identified at both time points in patients with hEDS/HSD. The evolution of most muscle strength parameters over time did not significantly differ between groups. Future studies should focus on the effectiveness of different types of muscle training strategies in hEDS/HSD patients.. These findings support previous adverse findings of e-cigarette exposure on neurodevelopment in a mouse model and provide substantial evidence of persistent adverse behavioral and neuroimmunological consequences to adult offspring following maternal e-cigarette exposure during pregnancy. https://doi.org/10.1289/EHP6067.. This RCT directly compares a neoadjuvant chemotherapy regimen with a standard CROSS regimen in terms of overall survival for patients with locally advanced ESCC. The results of this RCT will provide an answer for the controversy regarding the survival benefits between the two treatment strategies.. NCT04138212, date of registration: October 24, 2019.. Results of current investigation indicated that milk type and post fermentation cooling patterns had a pronounced effect on antioxidant characteristics, fatty acid profile, lipid oxidation and textural characteristics of yoghurt. Buffalo milk based yoghurt had more fat, protein, higher antioxidant capacity and vitamin content. Antioxidant and sensory characteristics of T. If milk is exposed to excessive amounts of light, Vitamins B. The two concentration of ZnO nanoparticles in the ambient air produced two different outcomes. The lower concentration resulted in significant increases in Zn content of the liver while the higher concentration significantly increased Zn in the lungs (p < 0.05). Additionally, at the lower concentration, Zn content was found to be lower in brain tissue (p < 0.05). Using TEM/EDX we detected ZnO nanoparticles inside the cells in the lungs, kidney and liver. Inhaling ZnO NP at the higher concentration increased the levels of mRNA of the following genes in the lungs: Mt2 (2.56 fold), Slc30a1 (1.52 fold) and Slc30a5 (2.34 fold). At the lower ZnO nanoparticle concentration, only Slc30a7 mRNA levels in the lungs were up (1.74 fold). Thus the two air concentrations of ZnO nanoparticles produced distinct effects on the expression of the Zn-homeostasis related genes.. Until adverse health effects of ZnO nanoparticles deposited in organs such as lungs are further investigated and/or ruled out, the exposure to ZnO nanoparticles in aerosols should be avoided or minimised.

Topics: A549 Cells; Acetylmuramyl-Alanyl-Isoglutamine; Acinetobacter baumannii; Acute Lung Injury; Adaptor Proteins, Signal Transducing; Adenine; Adenocarcinoma; Adipogenesis; Administration, Cutaneous; Administration, Ophthalmic; Adolescent; Adsorption; Adult; Aeromonas hydrophila; Aerosols; Aged; Aged, 80 and over; Aging; Agriculture; Air Pollutants; Air Pollution; Airway Remodeling; Alanine Transaminase; Albuminuria; Aldehyde Dehydrogenase 1 Family; Algorithms; AlkB Homolog 2, Alpha-Ketoglutarate-Dependent Dioxygenase; Alzheimer Disease; Amino Acid Sequence; Ammonia; Ammonium Compounds; Anaerobiosis; Anesthetics, Dissociative; Anesthetics, Inhalation; Animals; Anti-Bacterial Agents; Anti-HIV Agents; Anti-Infective Agents; Anti-Inflammatory Agents; Antibiotics, Antineoplastic; Antibodies, Antineutrophil Cytoplasmic; Antibodies, Monoclonal, Humanized; Antifungal Agents; Antigens, Bacterial; Antigens, CD; Antigens, Differentiation, Myelomonocytic; Antimetabolites, Antineoplastic; Antineoplastic Agents; Antineoplastic Combined Chemotherapy Protocols; Antioxidants; Antitubercular Agents; Antiviral Agents; Apolipoproteins E; Apoptosis; Arabidopsis; Arabidopsis Proteins; Arsenic; Arthritis, Rheumatoid; Asthma; Atherosclerosis; ATP-Dependent Proteases; Attitude of Health Personnel; Australia; Austria; Autophagy; Axitinib; Bacteria; Bacterial Outer Membrane Proteins; Bacterial Proteins; Bacterial Toxins; Bacterial Typing Techniques; Bariatric Surgery; Base Composition; Bayes Theorem; Benzoxazoles; Benzylamines; beta Catenin; Betacoronavirus; Betula; Binding Sites; Biological Availability; Biological Oxygen Demand Analysis; Biomarkers; Biomarkers, Tumor; Biopsy; Bioreactors; Biosensing Techniques; Birth Weight; Blindness; Blood Chemical Analysis; Blood Gas Analysis; Blood Glucose; Blood Pressure; Blood Pressure Monitoring, Ambulatory; Blood-Brain Barrier; Blotting, Western; Body Mass Index; Body Weight; Bone and Bones; Bone Density; Bone Resorption; Borates; Brain; Brain Infarction; Brain Injuries, Traumatic; Brain Neoplasms; Breakfast; Breast Milk Expression; Breast Neoplasms; Bronchi; Bronchoalveolar Lavage Fluid; Buffaloes; Cadherins; Calcification, Physiologic; Calcium Compounds; Calcium, Dietary; Cannula; Caprolactam; Carbon; Carbon Dioxide; Carboplatin; Carcinogenesis; Carcinoma, Ductal; Carcinoma, Ehrlich Tumor; Carcinoma, Hepatocellular; Carcinoma, Non-Small-Cell Lung; Carcinoma, Pancreatic Ductal; Carcinoma, Renal Cell; Cardiovascular Diseases; Carps; Carrageenan; Case-Control Studies; Catalysis; Catalytic Domain; Cattle; CD8-Positive T-Lymphocytes; Cell Adhesion; Cell Cycle Proteins; Cell Death; Cell Differentiation; Cell Line; Cell Line, Tumor; Cell Movement; Cell Nucleus; Cell Phone Use; Cell Proliferation; Cell Survival; Cell Transformation, Neoplastic; Cell Transformation, Viral; Cells, Cultured; Cellulose; Chemical Phenomena; Chemoradiotherapy; Child; Child Development; Child, Preschool; China; Chitosan; Chlorocebus aethiops; Cholecalciferol; Chromatography, Liquid; Circadian Clocks; 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To evaluate the efficacy and safety of alogliptin in Chinese patients with type 2 diabetes (T2DM).. This was a multicenter, randomized, double-blind, placebo-controlled phase III trial. A total of 491 subjects with T2DM were randomized in a 1:1 ratio to receive alogliptin (25 mg once daily) or placebo for 16 weeks. Among them, 181 were in the monotherapy group (group A), 186 were in the add-on to metformin group (group B), and 124 were in the add-on to pioglitazone group (group C).. After 16 weeks of therapy, glycosylated hemoglobin A1c (HbA1c) levels decreased in both alogliptin and placebo groups. The mean changes in HbA1c for alogliptin and placebo were 1.00% and 0.43% (P<0.001), 0.91% and 0.23% (P<0.001), and 0.76% and 0.25% (P<0.001) in group A, B and C, respectively. Compared with placebo, alogliptin treatment led to a greater decrease in fasting plasma glucose (FPG) and a higher percentage of subjects who achieved HbA1c targets of ≤ 6.5% and ≤ 7.0%. The percentage of subjects who experienced all adverse events including hypoglycemia with alogliptin were comparable to those with placebo.. Alogliptin 25 mg once daily reduced HbA1c and FPG, and increased a greater proportion of subjects achieving HbA1c goals of ≤6.5% and ≤7.0% compared with placebo when used as a monotherapy, add-on to metformin, or add-on to pioglitazone. The hypoglycemia rates and safety profiles with alogliptin were similar to those with placebo.

Topics: Asian People; Blood Glucose; China; Diabetes Mellitus, Type 2; Double-Blind Method; Drug Therapy, Combination; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Metformin; Pioglitazone; Piperidines; Safety; Thiazolidinediones; Uracil

To evaluate the efficacy and safety of the dipeptidyl peptidase-4 inhibitor alogliptin plus metformin (A + M) initial combination therapy versus either as monotherapy in drug-naïve T2DM patients.. This international, randomized, double-blind, placebo-controlled, 26-week study involved T2DM patients with hyperglycaemia (HbA1c 7.5-10.0%) following diet/exercise therapy. Patients (N = 784) received placebo, alogliptin (A, 12.5 mg BID or 25 mg QD), metformin (M, 500 or 1000 mg BID) or A + M (12.5/500 or 12.5/1000 mg BID); placebo, A25 for secondary analyses only.. week 26 changes from baseline in HbA1c (primary), fasting plasma glucose (FPG) and 2-h postprandial glucose (PPG); incidences of clinical response and hyperglycaemic rescue.. Week 26 mean HbA1c reductions from baseline (8.45%) were -1.22 and -1.55% with A + M 12.5/500 and 12.5/1000 versus -0.56, -0.65, and -1.11% with A12.5, M500 and M1000 (p<0.001, A + M vs. component monotherapies). FPG reductions were -1.76 and -2.55 mmol/L with 12.5/500 and 12.5/1000 versus -0.54, -0.64 and -1.78 mmol/L with A12.5, M500 and M1000 (p < 0.05, A + M vs. component monotherapies). Significantly more A + M-treated patients achieved HbA1c < 7% (47.1-59.5% vs. 20.2-34.3% with monotherapy), significantly fewer required hyperglycaemic rescue (2.6-12.3% vs. 10.8-22.9% with monotherapy). A + M caused only mild/moderate hypoglycaemia (1.9-5.3%) and weight loss (0.6-1.2 kg).. Alogliptin plus metformin initial combination therapy was well tolerated yet more efficacious in controlling glycaemia in drug-naïve T2DM patients than either as monotherapy.

Topics: Blood Glucose; Body Weight; Diabetes Mellitus, Type 2; Double-Blind Method; Drug Therapy, Combination; Female; Glycated Hemoglobin; Humans; Hyperglycemia; Hypoglycemia; Hypoglycemic Agents; Male; Metformin; Middle Aged; Piperidines; Treatment Outcome; Uracil

To evaluate the long-term durability of the efficacy of alogliptin compared with glipizide in combination with metformin in people with type 2 diabetes inadequately controlled on stable-dose metformin.. This multicentre, double-blind, active-controlled study randomized 2639 patients aged 18-80 years to 104 weeks of treatment with metformin in addition to alogliptin 12.5 mg once daily (n = 880), alogliptin 25 mg once daily (n = 885) or glipizide 5 mg once daily, titrated to a maximum of 20 mg (n = 874). The primary endpoint was least square mean change from baseline in HbA1c level at 104 weeks.. The mean patient age was 55.4 years, the mean diabetes duration was 5.5 years and the mean baseline HbA1c was 7.6%. HbA1c reductions at week 104 were -0.68%, -0.72% and -0.59% for alogliptin 12.5 and 25 mg and glipizide, respectively [both doses met the criteria for non-inferiority to glipizide (p<0.001); alogliptin 25 mg met superiority criteria (p=0.010)]. Fasting plasma glucose concentration decreased by 0.05 and 0.18 mmol/l for alogliptin 12.5 and 25 mg, respectively, and increased by 0.30 mmol/l for glipizide (p < 0.001 for both comparisons with glipizide). Mean weight changes were -0.68, -0.89 and 0.95 kg for alogliptin 12.5 and 25 mg and glipizide, respectively (p < 0.001 for both comparisons with glipizide). Hypoglycaemia occurred in 23.2% of patients in the glipizide group vs. 2.5 and 1.4% of patients in the alogliptin 12.5 and 25 mg groups, respectively. Pancreatitis occurred in one patient in the alogliptin 25 mg group and three in the glipizide group.. Alogliptin efficacy was sustained over 2 years in patients with inadequate glycaemic control on metformin alone.

Topics: Adult; Aged; Blood Glucose; Cardiovascular Diseases; Diabetes Mellitus, Type 2; Dipeptidyl-Peptidase IV Inhibitors; Dose-Response Relationship, Drug; Double-Blind Method; Drug Administration Schedule; Drug Therapy, Combination; Female; Glipizide; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Metformin; Middle Aged; Pancreatitis; Piperidines; Treatment Outcome; Uracil

To evaluate the efficacy and safety of alogliptin added to insulin in Japanese patients with type 2 diabetes mellitus (T2DM) who are poorly controlled with insulin and diet or exercise.. This was a randomized, double-blind, 12-week comparative trial of alogliptin and insulin versus placebo and insulin in 179 patients with T2DM followed by a 40-week, open-label phase in 169 patients on alogliptin and insulin.. Change in glycated hemoglobin (HbA1c) from baseline to the end of double-blind phase (week 12).. The change in HbA1c (least squares means) from baseline to week 12 was -0.96% for the alogliptin and insulin group and -0.29% for the placebo and insulin group. The point estimate (95% confidence interval) intergroup difference was -0.66% ([-0.824%, -0.503%]). In the alogliptin and insulin group, HbA1c started to decrease from week 2 onward and peaked by week 12. The proportions of patients who achieved HbA1c < 8.0, < 7.0 and < 6.0% at week 12 were significantly higher in alogliptin and insulin group (73.0, 23.3 and 1.1%) than in placebo and insulin group (25.0, 5.7 and 0%). Incidences of adverse effects were comparable between groups, with no relevant increases in hypoglycemia or weight gain seen.. Alogliptin 25 mg/day was effective and well tolerated when added to insulin in Japanese patients with inadequately controlled T2DM.

Topics: Aged; Blood Glucose; Diabetes Mellitus, Type 2; Double-Blind Method; Drug Therapy, Combination; Female; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Japan; Male; Middle Aged; Piperidines; Placebo Effect; Uracil; Weight Gain

To prospectively evaluate the efficacy and safety of alogliptin versus glipizide in elderly patients with type 2 diabetes mellitus (T2DM) over 1 year of treatment.. This was a randomized, double-blind, active-controlled study of elderly T2DM patients (aged 65-90 years) with mild hyperglycaemia on diet/exercise therapy alone [glycosylated haemoglobin (HbA1c) 6.5-9.0%] or plus oral antidiabetic monotherapy (HbA1c 6.5-8.0%). Patients were randomized to once-daily alogliptin 25 mg or glipizide 5 mg titrated to 10 mg, if needed. Hypoglycaemic episodes were systematically captured under predefined criteria.. In the primary analysis, HbA1c mean changes from a baseline of 7.5% were -0.14% with alogliptin (n = 222) and -0.09% with glipizide (n = 219) at the end of the study, demonstrating non-inferiority of alogliptin to glipizide [least squares (LS) mean difference = -0.05%; one-sided 97.5% confidence interval (CI): -∞, 0.13%]. More clinically relevant HbA1c reductions occurred among patients who completed the study: -0.42 and -0.33% with alogliptin and glipizide, with non-inferiority again confirmed (LS mean difference = -0.09%; one-sided 97.5% CI: -∞, 0.07%). Overall, alogliptin was safe and well tolerated, with notably fewer hypoglycaemic episodes than glipizide [5.4% (31 episodes) vs. 26.0% (232 episodes), respectively]; three patients experienced severe hypoglycaemia, all with glipizide. Alogliptin also resulted in favourable weight changes versus glipizide (-0.62 vs. 0.60 kg at week 52; p < 0.001).. Alogliptin monotherapy maintained glycaemic control comparable to that of glipizide in elderly patients with T2DM over 1 year of treatment, with substantially lower risk of hypoglycaemia and without weight gain.

Topics: Aged; Aged, 80 and over; Blood Glucose; Diabetes Mellitus, Type 2; Dipeptidyl-Peptidase IV Inhibitors; Dizziness; Double-Blind Method; Female; Glipizide; Glycated Hemoglobin; Headache; Humans; Hyperglycemia; Hypoglycemia; Hypoglycemic Agents; Male; Metformin; Piperidines; Prospective Studies; Treatment Outcome; Triglycerides; Uracil; Weight Gain

Acarbose was administered at 300 mg/day to patients with type 2 diabetes mellitus (T2DM) who had been taking 25 mg/day of alogliptin, and levels of blood glucose were analyzed by continuous glucose monitoring (CGM) for 3 days. The mean blood glucose level with acarbose (136.4 ± 30.7 mg/dL) did not differ significantly from that without acarbose (141.7 ± 28.3 mg/dL). However, in the condition of the combination therapy, there were significant decreases in the standard deviation of the mean blood glucose levels for the 24-hour period (27.6 ± 9.1 vs. 16.2 ± 6.9 mg/dL, p<0.001) and mean amplitude of glycemic excursions (MAGE) (65.8 ± 26.1 vs. 38.8 ± 19.2 mg/dL, p=0.010). In addition, a meal tolerance test was conducted to monitor changes in insulin secretion and active GLP-1 and total GIP values. Ten subjects (5 males, 5 females) of 54.9 ± 6.9 years with BMI 25.9 ± 5.2 kg/m² and HbAlc 9.2 ± 1.2% were enrolled. In the meal tolerance test, active GLP-1 values before and after acarbose administration were 17.0 ± 5.8 and 24.1 ± 9.3 pmol·hr/mL (p=0.054), respectively, showing an increasing tendency, and total GIP(AUC0-180) values were 685.9 ± 209.7 and 404.4 ± 173.7 pmol·hr/mL, respectively, showing a significant decrease (p=0.010). The results indicate that the combined administration of both inhibitors is effective not only in decreasing blood glucose fluctuations and preventing postprandial insulin secretion. The beneficial effects may also protect the endocrine pancreas and inhibit body weight gain.

Topics: Acarbose; Blood Glucose; Body Mass Index; Diabetes Mellitus, Type 2; Dipeptidyl-Peptidase IV Inhibitors; Drug Therapy, Combination; Enzyme Inhibitors; Female; Glucagon-Like Peptide 1; Glycated Hemoglobin; Glycoside Hydrolase Inhibitors; Humans; Hyperglycemia; Hypoglycemia; Insulin; Insulin Secretion; Islets of Langerhans; Male; Middle Aged; Overweight; Piperidines; Uracil; Weight Gain

The objectives of this study is to evaluate the efficacy and safety of alogliptin versus very low fat/calorie traditional Japanese diet (non-inferiority trial) as an initial therapy for newly diagnosed, drug naïve subjects with type 2 diabetes (T2DM). Study design was prospective, randomized, non-double-blind, controlled trial. The study was conducted at outpatient units of municipal hospital. Patients were newly diagnosed, drug naïve patients who visited the outpatient units. The patients randomly received 12.5-25 mg/day alogliptin (n = 25) or severe low calorie traditional Japanese diet (n = 26). The procedure of this trial was assessed by the consolidated standards of reporting trials statement. The primary end point was the change of HbA1c at 3 months. Secondary end points included the changes of fasting blood glucose, insulin, homeostasis model assessment-R (HOMA-R), HOMA-B, body mass index (BMI), and lipid parameters. Similar, significant reductions of HbA1c levels were observed in both groups (from 10.51 to 8.74% for alogliptin and from 10.01 to 8.39% for traditional Japanese diet) without any clinically significant adverse events. In the alogliptin group, some subjects (16%) had mild hypoglycemic evens which could be managed by taking glucose drinks by themselves. HOMA-B significantly increased in both groups with varying degrees, whereas HOMA-R significantly decreased only in the Japanese diet group. Atherogenic lipids, such as, total cholesterol, non-high density lipoprotein cholesterol, and low density lipoprotein cholesterol levels significantly decreased in both groups. BMI had no change in the alogliptin group, whereas it significantly decreased in the Japanese diet group. (1) Concerning its glycemic efficacy, alogliptin is effective and non-inferior to traditional Japanese diet as an initial therapeutic option for newly diagnosed T2DM. However, regarding the reductions of body weight and insulin resistance, traditional Japanese diet is superior. (2) Both alogliptin and traditional Japanese diet have favorable effects on atherogenic lipid profiles.

Topics: Adult; Diabetes Mellitus, Type 2; Diet, Diabetic; Diet, Fat-Restricted; Dipeptidyl-Peptidase IV Inhibitors; Female; Glycated Hemoglobin; Hospitals, Municipal; Humans; Hyperglycemia; Hyperlipidemias; Hypoglycemia; Insulin Resistance; Japan; Male; Middle Aged; Outpatient Clinics, Hospital; Patient Dropouts; Piperidines; Uracil; Weight Loss

Combinations of insulin and oral antidiabetic drugs (OAD) are often prescribed instead of insulin alone. In this study, the effects of insulin glargine (IG) in combination with repaglinide or acarbose on glycemic parameters were investigated. Obese Type 2 diabetic patients with fasting blood glucose (FBG) levels >or= 7.7 mmol/l [corrected] and hemoglobin glycated (A1C) >or=9% under maximal OAD combination therapy were enrolled. Previous therapies were discontinued, and patients were randomized into 2 groups. The combinations of IG and repaglinide were administered to group 1, and of IG and acarbose to group 2 for 13 weeks. Twenty patients in group 1 and 18 patients in group 2 completed the study. A1C levels were significantly decreased from 10.9+/-1.4% to 7.7+/-1.1% in group 1 and 11.0+/-1.4% to 8.1+/-1.4% in group 2. FBG levels were significantly decreased from 11.9+/-2.7 to 7.1+/-2.3 mmol/l in group 1 and 11.1+/-2.5 to 6.8+/-1.4 mmol/l in group 2. Post-prandial glucose levels were significantly decreased from 15.3+/-3.8 to 10.3+/-3.0 mmol/l in group 1 and 14.0+/-3.1 to 8.9+/-2.2 mmol/l in group 2. Intergroup comparisons indicated no significant differences. More weight gain was detected in group 1, compared to the baseline. Symptomatic hypoglycemia incidence was similar in both groups. Severe hypoglycemic attacks were seen in two patients in group 1. Flatulence incidence was higher in acarbose group. Conclusively, repaglinide and acarbose were equally effective when combined with IG for obese Type 2 diabetic patients controlled inadequately with OAD alone. Furthermore, acarbose seems to have advantages over repaglinide concerning weight gain and severe hypoglycemic attacks.

Topics: Acarbose; Blood Glucose; Carbamates; Diabetes Mellitus, Type 2; Drug Therapy, Combination; Female; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Insulin Glargine; Insulin, Long-Acting; Male; Middle Aged; Obesity; Piperidines; Weight Gain

To assess the efficacy and safety of a new repaglinide/metformin fixed-dose combination (FDC) tablet administered either twice a day (BID) or three times a day (TID) for the management of type 2 diabetes.. This was a 26-week, multicentre, open-label parallel trial in which subjects poorly controlled with mono- or dual-oral antidiabetic therapy were randomized 1 : 1 : 1 to instead receive repaglinide/metformin FDC either BID or TID or a rosiglitazone/metformin FDC BID. Two primary hypotheses were tested in a hierarchical manner: (i) treatment with the repaglinide/metformin FDC BID is non-inferior to that of the rosiglitazone/metformin FDC BID as measured by changes in haemoglobin A1c (HbA1c) (results presented in companion paper) and (ii) repaglinide/metformin BID is non-inferior to repaglinide/metformin TID (as measured by changes in HbA1c). Additional efficacy and safety end-points were also assessed.. A total of 561 subjects were randomized; 383 completed the study. Repaglinide/metformin FDC BID was non-inferior to repaglinide/metformin FDC TID with respect to HbA1c. Additionally, changes in mean fasting plasma glucose values from baseline to end of study were not significantly different between the BID and the TID dose groups. There were no major hypoglycaemic episodes reported in either group during the trial, and overall adverse event profiles were similar.. The efficacy of twice-daily dosing of a repaglinide/metformin FDC tablet was non-inferior to that of three-times-daily dosing.

Topics: Adult; Blood Glucose; Carbamates; Diabetes Mellitus, Type 2; Drug Administration Schedule; Drug Therapy, Combination; Female; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Metformin; Middle Aged; Patient Satisfaction; Piperidines; Tablets; Young Adult

Alogliptin is a dipeptidyl peptidase-4 inhibitor under investigation for treatment of patients with type 2 diabetes mellitus. Potential pharmacokinetic (PK) drug-drug interactions of alogliptin with pioglitazone or glyburide were evaluated in healthy adults. In a randomized, 6-sequence, 3-period crossover study (study I), participants (n = 30 enrolled; n = 27 completed) received monotherapy with pioglitazone 45 mg once daily (qd), alogliptin 25 mg qd, or coadministration of the 2 agents. The 12-day treatment periods were separated by a > or =10-day washout interval. In a nonrandomized, single-sequence study (study II), participants (n = 24 completed) received a single 5-mg dose of the sulfonylurea glyburide, alone and after 8 days of dosing with alogliptin 25 mg qd. Sequential samples of blood (both studies) and urine (first study) were obtained for determination of PK parameters for alogliptin, pioglitazone, their metabolites, and glyburide. Minor changes in PK parameters between combination therapy and monotherapy were obtained but not judged to be clinically relevant. The combination treatments were well tolerated, although glyburide frequently caused hypoglycemia. Most adverse events were of mild intensity and occurred with a frequency similar to that with monotherapy. It is concluded that pioglitazone or glyburide can be administered with alogliptin without dose adjustment to any component of the combination therapy.

Topics: Adolescent; Adult; Cross-Over Studies; Drug Interactions; Drug Therapy, Combination; Female; Glyburide; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Middle Aged; Pioglitazone; Piperidines; Thiazolidinediones; Uracil

To assess the efficacy and safety of alogliptin added to insulin in patients with type 2 diabetes inadequately controlled with insulin alone or combined with metformin.. In this 26-week, double-blind, placebo-controlled study, 390 patients were randomized to receive alogliptin 12.5 mg (n = 131), alogliptin 25 mg (n = 129) or placebo (n = 130) once daily, as add-on to stable insulin therapy with or without metformin. The primary endpoint was change in haemoglobin A(1C) (HbA(1C)) at week 26.. At week 26, mean HbA(1C) changes from the mean baseline value of 9.3% were significantly greater for alogliptin 12.5 mg (-0.63 +/- 0.08%) and alogliptin 25 mg (-0.71 +/- 0.08%) than placebo (-0.13 +/- 0.08%; p < 0.001). Significantly greater proportions of patients receiving alogliptin 12.5 or 25 mg than placebo had HbA(1C) decreases of > or =0.5, > or =1.0 and > or =1.5%. Insulin doses remained unchanged, and there were no differences in the proportions of patients experiencing hypoglycaemia among placebo (24%), alogliptin 12.5 mg (27%) and alogliptin 25 mg (27%). Mean weight increases from baseline at week 26 were similar for placebo (0.6 +/- 0.2 kg), alogliptin 12.5 mg (0.7 +/- 0.2 kg) and alogliptin 25 mg (0.6 +/- 0.2 kg). Incidences of overall adverse events, and of gastrointestinal, dermatological and infection-related events, were similar among groups.. Adding alogliptin to previous insulin therapy (with or without metformin) significantly improved glycaemic control in patients with type 2 diabetes inadequately controlled on insulin, without causing weight gain or increasing the incidence of hypoglycaemia. Further studies are warranted to explore the role of alogliptin added to optimized basal insulin regimens.

Topics: Adolescent; Adult; Aged; Aged, 80 and over; Blood Glucose; Diabetes Mellitus, Type 2; Double-Blind Method; Drug Therapy, Combination; Female; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Male; Middle Aged; Piperidines; Treatment Outcome; Uracil; Weight Gain; Young Adult

To study the effect of insulin treatment in combination with metformin or an insulin secretagogue, repaglinide, on glycaemic regulation in non-obese patients with type 2 diabetes.. Randomised, double blind, double dummy, parallel trial.. Secondary care in Denmark between 2003 and 2006.. Non-obese patients (BMI

Topics: Blood Glucose; Carbamates; Diabetes Mellitus, Type 2; Double-Blind Method; Drug Therapy, Combination; Female; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Insulin Aspart; Male; Metformin; Middle Aged; Patient Compliance; Piperidines; Treatment Outcome; Weight Gain

Alogliptin is a highly selective dipeptidyl peptidase-4 (DPP-4) inhibitor that is under development for the treatment of type 2 diabetes.. This study was conducted to characterize the pharmacokinetics, pharmacodynamics, and tolerability of single oral doses of alogliptin in healthy male subjects.. This was a randomized, double-blind, placebo-controlled study in which healthy, nonobese male subjects between the ages of 18 and 55 years were assigned to 1 of 6 cohorts: alogliptin 25, 50, 100, 200, 400, or 800 mg. One subject in each cohort received placebo. An ascending-dose strategy was used, in which each cohort received its assigned dose only after review of the safety data from the previous cohort. Blood and urine were collected over 72 hours after dosing for pharmacokinetic analysis and determination of plasma DPP-4 inhibition and active glucagon-like peptide -1(GLP-1) concentrations.. Thirty-six subjects (66 per cohort) were enrolled and completed the study (29/36 [81% ] white; mean age, 26.6 years; mean weight, 76.0 kg). Alogliptin was rapidly absorbed (median T(max), 1-2 hours) and eliminated slowly (mean t(1/2), 12.4-21.4 hours), primarily via urinary excretion (mean fraction of drug excreted in urine from 0 to 72 hours after dosing, 60%-71%). C(max) and AUC(0-infinity) increased dose proportionally over the range from 25 to 100 mg. The metabolites M-I (N-demethylated) and M-II (N-acetylated) accounted for <2% and <6%, respectively, of alogliptin concentrations in plasma and urine. Across alogliptin doses, mean peak DPP-4 inhibition ranged from 93% to 99%, and mean inhibition at 24 hours after dosing ranged from 74% to 97%. Exposure to active GLP-1 was 2- to 4-fold greater for all alogliptin doses compared with placebo; no dose response was apparent. Hypoglycemia (asymptomatic) was reported in 5 subjects (11 receiving alogliptin 50 mg, 2 receiving alogliptin 200 mg, 1 receiving alogliptin 400 mg, 1 receiving placebo). Other adverse events were reported in 1 subject each: dizziness (alogliptin 100 mg), syncope (alogliptin 200 mg), constipation (alogliptin 200 mg), viral infection (alogliptin 400 mg), hot flush (placebo), and nausea (placebo).. In these healthy male subjects, alogliptin at single doses up to 800 mg inhibited plasma DPP-4 activity, increased active GLP-1, and was generally well tolerated, with no dose-limiting toxicity.

Topics: Adolescent; Adult; Area Under Curve; Chromatography, High Pressure Liquid; Cohort Studies; Dipeptidyl Peptidase 4; Dipeptidyl-Peptidase IV Inhibitors; Dose-Response Relationship, Drug; Double-Blind Method; Glucagon-Like Peptide 1; Humans; Hypoglycemia; Male; Middle Aged; Molecular Structure; No-Observed-Adverse-Effect Level; Piperidines; Reference Values; Tandem Mass Spectrometry; Time Factors; Uracil

To compare combination use of repaglinide, metformin and bedtime Neutral Protamine Hagedorn (NPH) insulin with conventional approaches of insulin initiation in patients with Type 2 diabetes (T2DM).. Eighty-two patients with T2DM with suboptimal glycaemic control on oral glucose-lowering agents were randomized to one of three treatment regimens for 4 months. Group 1 received metformin and twice daily biphasic 30/70 human insulin mixture (n = 27), group 2 metformin and bedtime NPH insulin (n = 26) and group 3 metformin, bedtime NPH insulin and mealtime repaglinide (n = 25).. Seventy-five patients completed the study. Baseline and end-point mean HbA1c levels fell from 9.0 +/- 1.1 to 7.9 +/- 1.1% in group 1, 10.0 +/- 2.2 to 9.2 +/- 1.4% group 2 and 10.0 +/- 1.7 to 8.1 +/- 1.5% in group 3, respectively. All groups showed improvements in HbA1c. There was no significant difference between groups in the proportions of patients experiencing hypoglycaemia (29.6, 25.0 and 16.7%, respectively; P = 0.55) or in mean weight gain (2.9, 0.7 and 2.2 kg, respectively; P = 0.06). By 4 months, insulin doses were 0.63 +/- 0.32 IU/kg in group 1, 0.58 +/- 0.21 IU/kg in group 2 and 0.37 +/- 0.22 IU/kg in group 3 (group 3 vs. groups 1 and 2: P < 0.002).. The approach using repaglinide, metformin and NPH insulin improved glycaemic control with a similar safety profile to conventional insulin initiation in T2DM and produced final glycaemic control similar to metformin and a twice daily biphasic insulin mixture.

Topics: Adult; Aged; Aged, 80 and over; Carbamates; Diabetes Mellitus, Type 2; Drug Administration Schedule; Drug Therapy, Combination; Female; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin, Isophane; Male; Metformin; Middle Aged; Piperidines; Treatment Outcome; Weight Gain

The efficacy and safety of combination therapy (repaglinide plus pioglitazone) was compared to repaglinide or pioglitazone in 24-week treatment of type 2 diabetes. This randomized, multicenter, open-label, parallel-group study enrolled 246 adults (age 24-85) who had shown inadequate response in previous sulfonylurea or metformin monotherapy (HbA(1c) > 7%). Prior therapy was withdrawn for 2 weeks, followed by randomization to repaglinide, pioglitazone, or repaglinide/pioglitazone. In the first 12 weeks of treatment, repaglinide doses were optimized, followed by 12 weeks of maintenance therapy. Pioglitazone dosage was fixed at 30 mg per day. Baseline HbA(1c) values were comparable (9.0% for repaglinide, 9.1% for pioglitazone, 9.3% for combination). Mean changes in HbA(1c) values at the end of treatment were -1.76% for repaglinide/pioglitazone, -0.18% for repaglinide, +0.32% for pioglitazone. Fasting plasma glucose reductions were -82 mg/dl for combination therapy, -34 mg/dl for repaglinide, -18 mg/dl for pioglitazone. Minor hypoglycemia occurred in 5% of patients for the combination, 8% for repaglinide, and 3% for pioglitazone. Weight gains for combination therapy were correlated to individual HbA(1c) reductions. In summary, for patients who had previously failed oral antidiabetic monotherapy, the combination repaglinide/pioglitazone had acceptable safety, with greater reductions of glycemic parameters than therapy using either agent alone.

Topics: Adult; Aged; Aged, 80 and over; Blood Glucose; Carbamates; Diabetes Mellitus, Type 2; Drug Therapy, Combination; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Lipids; Middle Aged; Pioglitazone; Piperidines; Thiazolidinediones

This 24-week, randomized, multicentre, open-label, parallel-group clinical trial compared efficacy and safety of repaglinide monotherapy, rosiglitazone monotherapy, and combination therapy (repaglinide plus rosiglitazone) in Type 2 diabetes after unsatisfactory response to sulphonylurea or metformin monotherapy.. Enrolled patients (n = 252) were adults having Type 2 diabetes for at least 1 year, with HbA(1c) values > 7.0% after previous monotherapy (sulphonylurea or metformin, >/= 50% maximal dose). Prior therapy was withdrawn for 2 weeks, followed by randomization to repaglinide, rosiglitazone, or repaglinide/rosiglitazone. Study treatments were initiated with a 12-week dose optimization period (doses optimized according to labelling), followed by a 12-week maintenance period. Efficacy endpoints were changes in HbA(1c) values (primary) or fasting plasma glucose values (secondary).. Baseline HbA(1c) values were comparable (9.3% for repaglinide, 9.0% for rosiglitazone, 9.1% for combination). Mean changes in HbA(1c) values at the end of treatment were greater for repaglinide/rosiglitazone therapy (-1.43%) than for repaglinide (-0.17%) or rosiglitazone (-0.56%) monotherapy. Reductions of fasting plasma glucose values were also greater for combination therapy (-5.2 mmol/l, -94 mg/dl) than for repaglinide monotherapy (-3.0 mmol/l, -54 mg/dl) or rosiglitazone monotherapy (-3.7 mmol/l, -67 mg/dl). Minor hypoglycaemic events occurred in 9% of combination therapy patients, vs. 6% for repaglinide and 2% for rosiglitazone. Individual weight gains for combination therapy were correlated to HbA(1c) response.. The combination therapy regimen was well tolerated. In patients previously showing unsatisfactory response to oral monotherapy, glycaemic reductions were greater for the repaglinide/rosiglitazone combination regimen than for use of either repaglinide or rosiglitazone alone.

Topics: Blood Glucose; Carbamates; Diabetes Mellitus, Type 2; Drug Therapy, Combination; Female; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Middle Aged; Piperidines; Rosiglitazone; Thiazolidinediones; Treatment Outcome; Weight Gain

Oral hypoglycemic agents bind to the ATP-sensitive potassium channel and lower glucose levels effectively in individuals with diabetes. Although the principle mechanism of action can also promote hypoglycemia, clinically profound hypoglycemia is rare. Decreased stimulation of insulin secretion by these agents at mild hypoglycemia could provide protection from more profound hypoglycemia. Sulfonylureas and meglitinides bind to both shared and unique sites on the ATP-sensitive potassium receptor/channel complex but have different pharmacokinetic profiles. To evaluate the differential ability of both sulfonylureas and meglitinides to stimulate insulin release at modest hypoglycemia, we evaluated dextrose infusion rates necessary to maintain plasma glucose after oral administration of repaglinide (1 mg) or glipizide (5 mg) at euglycemia and again at modest hypoglycemia. Healthy subjects with no family history of diabetes underwent four clamp studies, two performed while maintaining isoglycemia (glucose levels at the fasted value) and two while maintaining modest hypoglycemia of 2.78 mmol/liter (50 mg/dl) induced by low-dose insulin infusion (3.6 pmol/kg.min). There was a marked decrease in the dextrose infusion rate with administration of either repaglinide or glipizide at hypoglycemia compared with drug administration at euglycemia (P

Topics: Administration, Oral; Adult; Carbamates; Cross-Over Studies; Double-Blind Method; Female; Glipizide; Glucose; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Insulin Secretion; Islets of Langerhans; Male; Piperidines

The effect of repaglinide on insulin secretion and oxidative stress was evaluated in type 2 diabetic patients in a randomized, controlled, open-label trial. Forty-six patients were treated for 2 months with repaglinide, added to either diet (n=21) or metformin (n=25). A control group of 29 patients, matched for age, weight and glycaemic control, on either diet (n=13) or metformin (n=16) was also followed-up. Phases of insulin secretion (first-FPIS and second-SPIS) ware studied during IVGTT. Total serum antioxidant capacity and serum superoxide dismutase (SOD) activity were measured to assess oxidative stress. HbA(1c) decreased significantly in the repaglinide-treated group (P=0.01), the difference being significant compared with the control group (P=0.01). FPIS increased significantly after repaglinide (P<0.001). The area under the curve (AUC) for FPIS increased significantly (P<0.001), while the AUC for SPIS and for total insulin secretion did not change. Insulin secretion remained unchanged after 2 months in the control group. There was a significant increase after repaglinide in total serum antioxidant capacity (P<0.05) and serum SOD activity (P<0.0004); the difference compared to the control group being significant (P<0.002). Our results demonstrate the physiological effect of repaglinide on endogenous insulin secretion in a controlled, randomized, open-label study-there is a rise only in FPIS, which is the main beta-cell defect in type 2 diabetes mellitus. This improvement in glycaemic control was accompanied by a beneficial effect on oxidative stress in diabetes mellitus.

Topics: Carbamates; Diabetes Mellitus, Type 2; Female; Glucose Tolerance Test; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Insulin Secretion; Male; Middle Aged; Oxidative Stress; Piperidines; Superoxide Dismutase; Treatment Outcome

This study compared treatment with a prandial glucose regulator (repaglinide) and a sulphonylurea (glibenclamide) in Muslim Type 2 diabetic patients who practice Ramadan fasting. Two hundred and thirty-five patients, previously treated with a sulphonylurea, were randomised to receive either repaglinide (n=116, preprandially three-times daily) or glibenclamide (n=119, preprandially once- or twice-daily) 6 weeks before Ramadan. During Ramadan, patients changed their eating pattern to two meals daily, and the daily dose of repaglinide was redistributed to two preprandial doses. After Ramadan, patients resumed their regular meal pattern and treatment dosage for 4 weeks. During Ramadan, a statistically significant reduction in mean serum fructosamine concentration from baseline was observed in the repaglinide group (-16.9+/-4.9 micromol/l, -3.8%, P<0.05) but not the glibenclamide group (-6.9+/-4.8 micromol/l, -0.8%). Difference in change in HbA(1c) from baseline was not statistically significant between groups. The number of hypoglycaemic events with midday blood glucose <4.5 mmol/l was significantly lower in the repaglinide group (2.8%) than the glibenclamide group (7.9%) (P=0.001). Apart from hypoglycaemia, both treatments were equally well tolerated. Type 2 diabetic Muslims using prandial repaglinide showed a trend towards better glycaemic control and had a lower frequency of hypoglycaemia than patients using glibenclamide during Ramadan.

Topics: Biomarkers; Carbamates; Diabetes Mellitus, Type 2; Fasting; Feeding Behavior; Female; Fructosamine; Glyburide; Humans; Hypoglycemia; Hypoglycemic Agents; Islam; Malaysia; Male; Middle Aged; Piperidines; Risk Factors; Safety; Time Factors

This double-blind randomized placebo-controlled parallel group study assessed the efficacy and safety (with particular regard to body weight and hypoglycemia) of repaglinide when used in a flexible mealtime dosing regimen in a situation close to everyday clinical practice.. A total of 408 patients with type 2 diabetes considered poorly controlled by diet, but without a history of previous antidiabetic medication, were randomized to receive 0.5 mg repaglinide at mealtimes (increased to 1 mg after 4 weeks depending on blood glucose response) or placebo for 16 weeks. Patients were free to choose a flexible meal pattern, adjusting the dosing schedule from two to four preprandial doses per day in accordance with a "one meal, one dose; no meal, no dose" principle. Additional snacks were not a requirement of the treatment schedule.. Treatment with repaglinide significantly improved glycemic control with respect to baseline and placebo, reducing HbA1c by 1.14% from baseline and fasting plasma glucose by 1.8 mmol/l. Improvement in glycemic control was independent of the meal pattern adopted by patients, including those most commonly taking two or four meals daily, with no correlation between meal pattern and risk of hypoglycemia. The improvement in glycemic control was also independent of degree of obesity and age < or =65 or >65 years. There was no significant body weight increase in the repaglinide group.. Mealtime dosing with repaglinide is effective in improving overall glycemic control in type 2 diabetic patients for which control is suboptimal using diet alone. Patients are able to vary their meal pattern from a conventional regimen of three meals daily without compromising control or increasing the risk of adverse events.

Topics: Aged; Blood Glucose; Body Weight; Carbamates; Diabetes Mellitus, Type 2; Diet; Double-Blind Method; Fasting; Female; Food; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Middle Aged; Piperidines; Placebos

Results are presented of a double-blind, Australian multicentre study of the efficacy and safety of adjunctive repaglinide in patients with Type 2 diabetes who were controlled inadequately on metformin monotherapy. Patients had to have been on metformin for at least 6 months and to have glycated haemoglobin (HbA1c) levels of more than 7.1%. Patients were randomized to one of three treatment regimens: metformin plus placebo (MET, n = 27), repaglinide plus placebo (REP, n = 29) and metformin plus repaglinide (MET/REP, n = 27). The metformin dose remained unchanged from the prestudy dose, whereas repaglinide was titrated from 0.5 mg to 4.0 mg preprandially, depending on fasting capillary blood glucose concentration. Maintenance treatment was continued for 3 months. In the MET and REP groups, the HbA1c level decreased from 8.6% to 8.3% and from 8.6% to 8.2%, respectively; in the MET/REP group, HbA1c decreased from 8.3% to 6.9% (p < 0.001 vs. baseline; p < 0.05 vs. each monotherapy group). Overall, 59% of patients in the MET/REP group achieved a HbA1c level of less than 7.1% by the end of the study, compared with 20% and 22% in the MET and REP groups, respectively. No serious adverse events occurred that were considered to be related to study medication. Mild symptoms of hypoglycaemia were seen in the REP and MET/REP groups, in many cases during the titration phase. The combination of repaglinide with metformin was safe and well tolerated and produced a greater improvement in glycaemic control than that seen by the sum of the changes with the two agents alone.

Topics: Australia; Carbamates; Diabetes Mellitus, Type 2; Drug Therapy, Combination; Female; Glycated Hemoglobin; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Metformin; Middle Aged; Piperidines

The aim of the present study was to test whether the serotoninergic system may be involved in the well known reduced growth hormone (GH) response to insulin-induced hypoglycaemia (IIH) in obese patients. Ten obese women and 10 normal-weight control women underwent three IIH tests, at 14-day intervals: the first in basal conditions, the other two after randomized administration of a serotoninergic drug, fenfluramine (FF, 120 mg/day for 7 days) and FF plus ritanserin (RIT, 30 mg/day for the first 2 days and 20 mg/day on the following days). Ritanserin is a new selective 5-HT2 blocker receptor agent. Both controls and obese patients showed similar normal basal GH levels before each test and insulin administration always effectively reduced glucose levels to values lower than 2.2 mmol/l. In the controls, the expected GH increase to IIH (peak value 56 +/- 13.4 mU/l, AUC 234.4 +/- 55 mU/min/ml) was unaffected by FF administration (peak value 43 +/- 11.4; AUC 216.8 +/- 34.8). In response to the first IIH, the obese patients showed a significantly lower GH increase than in the case of the controls (peak value 21.4 +/- 4.6 mU/l, P less than 0.02; AUC 93.2 +/- 18.6, P less than 0.02). However, in comparison with the basal test, FF administration significantly (P less than 0.001) enhanced GH response to insulin hypoglycaemia (peak value 33.4 +/- 4; AUC 150 +/- 14.6), reaching values not significantly different from those of the controls.(ABSTRACT TRUNCATED AT 250 WORDS)

Topics: Adult; Blood Glucose; Female; Fenfluramine; Growth Hormone; Humans; Hypoglycemia; Insulin; Middle Aged; Obesity; Piperidines; Random Allocation; Ritanserin; Serotonin Antagonists; Time Factors

The role of serotonin in the prolactin, growth hormone, ACTH and cortisol responses to hypoglycaemia has been investigated in normal subjects using a selective serotonin (5HT2) receptor antagonist, ketanserin. Circulating concentrations of these hormones were measured after administration of insulin (0.1 units/kg body weight iv) to eight normal male subjects with and without simultaneous iv ketanserin (10 mg). Plasma glucose fell to less than 2.0 mmol/1 in all subjects and was unaffected by ketanserin. Ketanserin induced a 50% decrease in the serum prolactin response to hypoglycaemia, 45 and 60 min after administration of insulin (increase in serum prolactin at 60 min: 1145 +/- 295 mU/l without ketanserin; 558 +/- 176 mU/l with ketanserin, P less than 0.05). The peak ACTH response was reduced by 30% (95.3 +/- 33.6 ng/l without ketanserin; 60.0 +/- 22.9 ng/l with ketanserin, P less than 0.05) but the plasma cortisol response was not significantly altered. The serum growth hormone response was unaffected by serotonin blockade. These findings suggest that serotonin, probably acting through 5HT2 receptors, is involved in the stimulation of prolactin and ACTH release but not in the release of growth hormone, during insulin induced hypoglycaemia.

Topics: Adrenocorticotropic Hormone; Adult; Growth Hormone; Humans; Hydrocortisone; Hypoglycemia; Ketanserin; Male; Piperidines; Pituitary Hormones, Anterior; Prolactin; Serotonin Antagonists

Serious hypoglycemia is a major adverse event associated with insulin secretagogues. Previous studies have suggested a potential relationship between angiotensin-converting enzyme inhibitors (ACEIs) used with sulfonylureas and serious hypoglycemia, and widely used drug compendia warn of this potential drug-drug interaction. We investigated the association between serious hypoglycemia and concomitant use of ACEIs in patients receiving insulin secretagogues, using the self-controlled case series design and Medicaid claims data from 5 US states linked to Medicare claims from 1999-2011. The exposure of interest was active prescription for ACEIs during insulin secretagogue or metformin (negative control object drug) episodes. The outcome was hospital presentation for serious hypoglycemia, identified by discharge diagnosis codes in inpatient and emergency department claims (positive predictive value ~ 78-89%). We calculated confounder-adjusted rate ratios (RRs) and 95% confidence internals (CIs) of outcome occurrence during ACEI-exposed vs. ACEI-unexposed time using conditional Poisson regression. The RRs for ACEIs were not statistically elevated during observation time of glipizide (RR, 1.06; CI, 0.98-1.15), glyburide (RR, 1.05; CI, 0.96-1.15), repaglinide (RR, 1.15; CI, 0.94-1.41), or metformin (RR, 1.02; CI, 0.97-1.06); but was modestly elevated with glimepiride (RR, 1.23; CI, 1.11-1.37) and modestly reduced with nateglinide (RR, 0.73; CI, 0.56-0.96). The overall pattern of results do not suggest that ACEIs used with insulin secretagogues were associated with increased rates of serious hypoglycemia, with the possible exception of glimepiride.

Topics: Administrative Claims, Healthcare; Aged; Aged, 80 and over; Angiotensin-Converting Enzyme Inhibitors; Carbamates; Databases, Factual; Diabetes Mellitus, Type 2; Drug Interactions; Female; Glipizide; Glyburide; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Male; Medicaid; Metformin; Middle Aged; Nateglinide; Pharmacoepidemiology; Piperidines; Secretagogues; Sulfonylurea Compounds; United States

We evaluated the efficacy of a novel brain permeable "metformin-like" AMP-activated protein kinase activator, R481, in regulating glucose homeostasis.. We used glucose sensing hypothalamic GT1-7 neuronal cells and pancreatic αTC1.9 α-cells to examine the effect of R481 on AMPK pathway activation and cellular metabolism. Glucose tolerance tests and hyperinsulinemic-euglycemic and hypoglycemic clamps were used in Sprague-Dawley rats to assess insulin sensitivity and hypoglycemia counterregulation, respectively.. These data demonstrate that peripheral administration of the brain permeable "metformin-like" AMPK activator R481 increases blood glucose by activation of the autonomic nervous system and amplifies the glucagon response to hypoglycemia in rats. Taken together, our data suggest that R481 amplifies the counterregulatory response to hypoglycemia by a central rather than a direct effect on the pancreatic α-cell. These data provide proof-of-concept that central AMPK could be a target for future drug development for prevention of hypoglycemia in diabetes.

Topics: AMP-Activated Protein Kinases; Animals; Autonomic Nervous System; Benzamides; Blood Glucose; Brain; Cells, Cultured; Hypoglycemia; Hypothalamus; Male; Permeability; Piperidines; Pyrimidines; Rats; Rats, Sprague-Dawley

JZL184 is a selective inhibitor of monoacylglycerol lipase (MAGL) that has neuroprotective effect. However, the role of JZL184 in cerebral ischemia/reperfusion (I/R) injury and the exact mechanism have not been fully understood. This study was designed to elucidate the role of JZL184 in cerebral I/R injury induced by oxygen-glucose deprivation/reoxygenation (OGD/R) in hippocampal neurons. Hippocampal neurons were pretreated with various concentrations of JZL184 for 2 h, followed by OGD for 3 h and reoxygen for 24 h. Our results showed that JZL184 improved cell viability in hippocampal neurons in response to OGD/R. JZL184 treatment significantly inhibited the production of reactive oxygen species (ROS) and malondialdehyde (MDA), as well as increased superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities in OGD/R-induced hippocampal neurons. The increased TNF-α, IL-1β, and IL-6 productions in OGD/R-induced hippocampal neurons were decreased after treatment with JZL184. Moreover, the OGD/R-caused intense TUNEL staining in hippocampal neurons was attenuated by JZL184. JZL184 treatment prevented OGD/R-caused increases in bax and cleaved caspase-3 expression and a decrease in bcl-2 expression. Furthermore, JZL184 treatment significantly promoted the activation of Nrf2/ARE signaling pathway in OGD/R-induced hippocampal neurons. Additionally, silencing of Nrf2 reversed the protective effect of JZL184 on hippocampal neurons under OGD/R condition. Taken together, these findings suggested that JZL184 exerted protective effect against OGD/R-induced injury in hippocampal neurons via activating Nrf2/ARE signaling pathway, which provided

Topics: Animals; Benzodioxoles; Brain Ischemia; Cell Survival; Glucose; Hippocampus; Humans; Hypoglycemia; Hypoglycemic Agents; Hypoxia; Models, Animal; Monoacylglycerol Lipases; Neurons; Neuroprotective Agents; Piperidines; Rats; Rats, Sprague-Dawley; Reperfusion Injury

Hypoglycemia should be avoided when treating patients with diabetes. Repaglinide is an insulin secretagogue with a low hypoglycemic risk because of its rapid- and short-acting effects. However, its blood concentration has been reported to increase in combination with clopidogrel, an antiplatelet drug, and in patients with severe renal insufficiency. We herein report an elderly patient with type 2 diabetes mellitus and severe renal insufficiency who received repaglinide and hypoglycemia three days after starting clopidogrel. The concomitant use of repaglinide and clopidogrel can lead to hypoglycemia, especially in patients with severe renal insufficiency.

Topics: Aged; Blood Glucose; Carbamates; Clopidogrel; Diabetes Mellitus, Type 2; Humans; Hypoglycemia; Hypoglycemic Agents; Piperidines; Renal Insufficiency

Insulin-induced hypoglycemia leads to far-ranging negative consequences in patients with diabetes. Components of the counterregulatory response (CRR) system that help minimize and reverse hypoglycemia and coordination between those components are well studied but not yet fully characterized. Here, we tested the hypothesis that acyl-ghrelin, a hormone that defends against hypoglycemia in a preclinical starvation model, is permissive for the normal CRR to insulin-induced hypoglycemia. Ghrelin knockout (KO) mice and wild-type (WT) littermates underwent an insulin bolus-induced hypoglycemia test and a low-dose hyperinsulinemic-hypoglycemic clamp procedure. Clamps also were performed in ghrelin-KO mice and C57BL/6N mice administered the growth hormone secretagogue receptor agonist HM01 or vehicle. Results show that hypoglycemia, as induced by an insulin bolus, was more pronounced and prolonged in ghrelin-KO mice, supporting previous studies suggesting increased insulin sensitivity upon ghrelin deletion. Furthermore, during hyperinsulinemic-hypoglycemic clamps, ghrelin-KO mice required a 10-fold higher glucose infusion rate (GIR) and exhibited less robust corticosterone and growth hormone responses. Conversely, HM01 administration, which reduced the GIR required by ghrelin-KO mice during the clamps, increased plasma corticosterone and growth hormone. Thus, our data suggest that endogenously produced acyl-ghrelin not only influences insulin sensitivity but also is permissive for the normal CRR to insulin-induced hypoglycemia.

Topics: Animals; Ghrelin; Glucose Clamp Technique; Hypoglycemia; Insulin; Male; Mice; Mice, Inbred C57BL; Mice, Knockout; Neuroprotective Agents; Piperidines; Receptors, Ghrelin

Topics: Animals; Arrhythmias, Cardiac; Benzodiazepinones; Disease Models, Animal; Hypoglycemia; Male; Mecamylamine; Muscarinic Antagonists; Nicotinic Antagonists; Parasympathetic Nervous System; Piperidines; Rats; Rats, Sprague-Dawley; Sympathectomy, Chemical; Vagotomy

The aim of this study was to investigate whether daily glycemic profiles and treatment satisfaction would be changed after switching from once-daily 25-mg alogliptin plus twice-daily 250-mg metformin to the fixed-dose combination of 25-mg alogliptin and 500-mg metformin once daily in type 2 diabetic patients. Twenty adult Japanese type 2 diabetic patients in whom once-daily 25-mg alogliptin plus twice-daily 250-mg metformin were switched to the fixed-dose combination of 25-mg alogliptin and 500-mg metformin once daily participated. Before and one month after the switch, participants were asked to perform one day of seven-point self-monitoring of blood glucose (SMBG), to wear a sensor of flash glucose monitoring for up to 14 days, and to respond to a questionnaire for treatment satisfaction. As a result, the SMBG profiles were significantly changed after the switch (p = 0.021); blood glucose levels 2 hours after breakfast were significantly elevated (p = 0.022), whereas those 2 hours after lunch were significantly reduced (p = 0.036). The flash glucose monitoring also demonstrated a significant change of daily glucose profiles (p < 0.001). The risk of glucose levels <80 mg/dL were decreased from evening to morning, while the risk of glucose levels ≥140 mg/dL were increased. Mean 24-hour glucose values were increased by 5 mg/dL on average (p < 0.001). Treatment satisfaction was significantly improved after the switch (p < 0.001). In conclusion, daily glycemic profiles were significantly changed after switching from once-daily 25-mg alogliptin plus twice-daily 250-mg metformin to the once-daily fixed-dose combination in Japanese type 2 diabetic patients. Treatment satisfaction was significantly improved after the switch.

Topics: Aged; Asian People; Blood Glucose; Diabetes Mellitus, Type 2; Drug Combinations; Drug Substitution; Drug Therapy, Combination; Female; Humans; Hypoglycemia; Hypoglycemic Agents; Japan; Male; Metformin; Middle Aged; Patient Satisfaction; Piperidines; Prospective Studies; Treatment Outcome; Uracil

Estrogen receptor-alpha (ERα) and -beta (ERβ) occur in key elements of the brain gluco-homeostatic network in both sexes, including the hindbrain dorsal vagal complex (DVC), but the influence of distinct receptor populations on this critical function is unclear. The ventromedial hypothalamic nucleus (VMN) maintains glucose balance by integrating nutrient, endocrine, and neurochemical cues, including metabolic sensory information supplied by DVC A2 noradrenergic neurons. Current research utilized the selective ERα and ERβ antagonists MPP and PHTPP to characterize effects of DVC ERs on VMN norepinephrine (NE) activity and metabolic neurotransmitter signaling in insulin-induced hypoglycemic (IIH) male rats. Data show that ERβ inhibits VMN glycogen synthase and stimulates phosphorylase protein expression, while attenuating hypoglycemic augmentation of glycogen content. Furthermore, both ERs attenuate VMN glucose concentrations during IIH. Hypoglycemic up-regulation of nitric oxide (NO) and brain-derived neurotrophic factor (BDNF) signaling was correspondingly driven by ERα or -β, whereas GABA and steroidogenic factor-1 were respectively suppressed independently of ER input or by ERβ. IIH intensified VMN NE accumulation by ERβ-dependent mechanisms, but did not alter NE levels in other gluco-regulatory loci. ERβ amplified the magnitude of insulin-induced decline in blood glucose. Both ERs regulate corticosterone, but not glucagon secretion during IIH and oppose hypoglycemic diminution of circulating free fatty acids. These findings identify distinguishing versus common VMN functions targeted by DVC ERα and -β. Sex differences in hypoglycemic VMN NE accumulation, glycogen metabolism, and transmitter signaling may involve, in part, discrepant regulatory involvement or differential magnitude of impact of these hindbrain ERs.

Topics: Animals; Brain-Derived Neurotrophic Factor; Corticosterone; Glucose; Glycogen; Hypoglycemia; Male; Nitric Oxide; Norepinephrine; Piperidines; Pyrazoles; Pyrimidines; Rats; Rats, Sprague-Dawley; Receptors, Estrogen; Rhombencephalon; Ventromedial Hypothalamic Nucleus

Neural substrates for estrogen regulation of glucose homeostasis remain unclear. Female rat dorsal vagal complex (DVC) A2 noradrenergic neurons are estrogen- and metabolic-sensitive. The ventromedial hypothalamic nucleus (VMN) is a key component of the brain network that governs counter-regulatory responses to insulin-induced hypoglycemia (IIH). Here, the selective estrogen receptor-alpha (ERα) or -beta (ERβ) antagonists MPP and PHTPP were administered separately to the caudal fourth ventricle to address the premise that these hindbrain ER variants exert distinctive control of VMN reactivity to IIH in the female sex. Data show that ERα governs hypoglycemic patterns of VMN astrocyte glycogen metabolic enzyme, e.g. glycogen synthase and phosphorylase protein expression, whereas ERβ mediates local glycogen breakdown. DVC ERs also regulate VMN neurotransmitter signaling of energy sufficiency [γ-aminobutyric acid] or deficiency [nitric oxide, steroidogenic factor-1] during IIH. Neither hindbrain ER mediates IIH-associated diminution of VMN norepinephrine (NE) content. Both ERs oppose hypoglycemic hyperglucagonemia, while ERβ contributes to reduced corticosterone output. Outcomes reveal that input from the female hindbrain to the VMN is critical for energy reserve mobilization, metabolic transmitter signaling, and counter-regulatory hormone secretion during hypoglycemia, and that ERs control those cues. Evidence that VMN NE content is not controlled by hindbrain ERα or -β implies that these receptors may regulate VMN function via NE-independent mechanisms, or alternatively, that other neurotransmitter signals to the VMN may control local substrate receptivity to NE.

Topics: Animals; Brain-Derived Neurotrophic Factor; Estrogen Receptor Antagonists; Female; Glycogen; Hypoglycemia; Nitric Oxide Synthase Type I; Piperidines; Pyrazoles; Pyrimidines; Rats; Receptors, Estrogen; Rhombencephalon; Steroidogenic Factor 1; Ventromedial Hypothalamic Nucleus

This nested case-control study evaluated the potential interaction between repaglinide and clopidogrel. Cases were defined by inpatient admissions or emergency department visits due to hypoglycemia. Concomitant use of repaglinide and clopidogrel within 3 days before the hypoglycemic event was the exposure of interest. For each case, up to four controls were randomly selected and matched by age, sex, type of glinide used (repaglinide or nateglinide), and time since cohort entry to the index date. Hypoglycemic risk was estimated by conditional logistic regressions. Concomitant use of repaglinide and clopidogrel was associated with an increased risk of hypoglycemia compared with repaglinide alone (adjusted odds ratio: 2.42; 95% confidence interval: 1.75-3.35). No significant associations were found with the two negative control object drug concomitants: nateglinide and clopidogrel and repaglinide and aspirin (without clopidogrel use). Our study suggests drug interaction between clopidogrel and repaglinide is clinically relevant and could increase the risk for hypoglycemia.

Topics: Aged; Aspirin; Carbamates; Case-Control Studies; Clopidogrel; Drug Interactions; Female; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Middle Aged; Nateglinide; Piperidines; Platelet Aggregation Inhibitors

Insulinotropic oral antidiabetics (OAD) such as sulfonylureas and (SU) glinides are among the frequently prescribed OAD. Side effects are the potential to induce hypoglycemias and weight gain. The aim was to assess the self-managing skills in case of a hypoglycemic event in an elderly type 2 diabetic patient population. In a 2-year period, 160 hospitalized patients (mean age 77.4 years) under insulinotrophic OAD were interviewed using a standardized questionnaire. Additionally, possible dementia was evaluated by using the Mini-Mental State Examination (MMSE) and the Clock-Drawing Test (CDT). The mean HbA1c was 7.6%. MMSE and CDT did intraindividually correlate well and 23.8% of the patients had moderate dementia (10 - 20 points MMSE), 13.1% had severe dementia (0 - 10 points MMSE) at the time of the survey. When under treatment with a sulfonylurea, only 16.0% of patients were aware of the potential hypoglycemia-inducing side effect. Moreover, only 11.8% of patients treated with a combination of a sulfonylurea and insulin knew this side effect of the OAD. The awareness of the side effects of repaglinide was 21.6% (without insulin therapy) versus 21.4% in the insulin-comedicated group. Only 42.6% of patients treated with sulfonylureas or repaglinide knew how to act in the case of hypoglycemia. Even under comedication with insulin, only in 41.2% of the respondents in the comedicated group knew how to take action if they were to experience hypoglycemia. Our findings raise concerns and demonstrate, that the self-managing skills in an elderly patient group are not good, which may become an increasing problem in an ageing population. The prescription or the re-prescription of insulinotropic OAD needs to be adapted to the current cognitive situation and re-evaluated regularly.

Topics: Aged; Aged, 80 and over; Aging; Carbamates; Diabetes Mellitus, Type 2; Drug Therapy, Combination; Female; Health Knowledge, Attitudes, Practice; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Middle Aged; Piperidines; Self-Management; Sulfonylurea Compounds

Drug-drug interactions with insulin secretagogues are associated with increased risk of serious hypoglycemia in patients with type 2 diabetes. We aimed to systematically screen for drugs that interact with the five most commonly used secretagogues-glipizide, glyburide, glimepiride, repaglinide, and nateglinide-to cause serious hypoglycemia.. We screened 400 drugs frequently coprescribed with the secretagogues as candidate interacting precipitants. We first predicted the drug-drug interaction potential based on the pharmacokinetics of each secretagogue-precipitant pair. We then performed pharmacoepidemiologic screening for each secretagogue of interest, and for metformin as a negative control, using an administrative claims database and the self-controlled case series design. The overall rate ratios (RRs) and those for four predefined risk periods were estimated using Poisson regression. The RRs were adjusted for multiple estimation using semi-Bayes method, and then adjusted for metformin results to distinguish native effects of the precipitant from a drug-drug interaction.. We predicted 34 pharmacokinetic drug-drug interactions with the secretagogues, nine moderate and 25 weak. There were 140 and 61 secretagogue-precipitant pairs associated with increased rates of serious hypoglycemia before and after the metformin adjustment, respectively. The results from pharmacokinetic prediction correlated poorly with those from pharmacoepidemiologic screening.. The self-controlled case series design has the potential to be widely applicable to screening for drug-drug interactions that lead to adverse outcomes identifiable in healthcare databases. Coupling pharmacokinetic prediction with pharmacoepidemiologic screening did not notably improve the ability to identify drug-drug interactions in this case.

Topics: Area Under Curve; Carbamates; Cyclohexanes; Databases, Factual; Diabetes Mellitus, Type 2; Drug Interactions; Glipizide; Glyburide; Humans; Hypoglycemia; Hypoglycemic Agents; Medical Informatics; Nateglinide; Pharmacoepidemiology; Phenylalanine; Piperidines; Sulfonylurea Compounds

Repaglinide is a short-acting insulin secretagogue with high interindividual variability in pharmacokinetics due to genetic polymorphisms. Little is known about repaglinide overdoses, both with respect to pharmacokinetics and appropriate management. Given its short serum half-life of less than 1 h, hypoglycemic effects of repaglinide are expected to cease within a few hours post-ingestion.. A 15-year-old girl ingested 10.5 mg of repaglinide in a suicide attempt. Few hours later, she developed a strong food craving, nausea, abdominal pain, and a headache. The lowest recorded serum glucose was 44 mg/dl (2.4 mmol/l) 14 h post-ingestion. Using liquid chromatography-mass spectrometry, we detected repaglinide serum levels of 5.3, 2.6, and 1.0 ng/ml at 14, 20, and 26 h post-ingestion, respectively.. This case illustrates that in the context of overdose, repaglinide can lead to prolonged hypoglycemia. We therefore recommend glucose monitoring and observation for 24 h in all patients who remain hypoglycemic or show symptoms of hypoglycemia for an unusually long period of time.

Topics: Adolescent; Blood Glucose; Carbamates; Chromatography, Liquid; Drug Overdose; Female; Half-Life; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Piperidines; Tandem Mass Spectrometry

The treatment of newly diagnosed type 2 diabetes mellitus is diverse, with no clear consensus regarding the initial drug regimen or dosing to achieve optimal glycemic control.. We treated 44 consecutive patients with newly diagnosed type 2 diabetes with maximally tolerated doses of pioglitazone 45 mg/day, metformin 1000-2000 mg/day, and repaglinide 1-4 mg before meals. The doses and drugs were subsequently decreased ("subtraction therapy") to achieve optimal glycemic control and minimize side effects. Three primary outcomes were measured: the short term HbA1c response, the long term HbA1c response, and the incidence of hypoglycemia.. All 44 patients responded with a rapid, progressive decline in their HbA1c levels from 11.43±2.3% to 6.17±0.72% (101±25.1 mmol/mol to 44±7.9 mmol/mol) by three months, and remained stable thereafter. An HbA1c ≤7.0% (≤53 mmol/mol) was reached within 1-4 months in 42 of 44 patients, and in every patient by 12 months. Each patient's lowest HbA1c level, 5.65±0.6% (38±6.6 mmol/mol), was reached over 6.3±2.9 months. Patients with initial HbA1c levels >10% (>86 mmol/mol) (n=33) responded similarly as those with HbA1c levels <10% (<86 mmol/mol) (n=11). Combination drug therapy maintained HbA1c levels between 5.0 and 7.0% (31 and 53 mmol/mol) for up to 14.83 years. Only one clinically significant hypoglycemic event occurred during 261.08 person-years of follow-up.. In our experience, combination drug "subtraction therapy" was safe and effective for treating all newly diagnosed type 2 diabetic patients.

Topics: Adult; Aged; Aged, 80 and over; Carbamates; Diabetes Mellitus, Type 2; Drug Therapy, Combination; Female; Follow-Up Studies; Glycated Hemoglobin; Goals; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Metformin; Middle Aged; Pioglitazone; Piperidines; Thiazolidinediones; Treatment Outcome

Topics: Aged, 80 and over; Carbamates; Diabetes Mellitus, Type 2; Frail Elderly; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Piperidines

Topics: Antipsychotic Agents; Dibenzothiazepines; Female; Humans; Hypoglycemia; Middle Aged; Piperazines; Piperidines; Quetiapine Fumarate

Topics: Adrenal Hyperplasia, Congenital; Adrenal Insufficiency; Amides; Anesthesia, Epidural; Anesthetics, Intravenous; Anesthetics, Local; Child; Chromosomes, Human, Pair 21; Coma; Gene Deletion; Genetic Diseases, X-Linked; Glycerol Kinase; Hip; Humans; Hypoadrenocorticism, Familial; Hypoglycemia; Male; Muscular Dystrophy, Duchenne; Osteotomy; Piperidines; Remifentanil; Ropivacaine

To report a case of clinically significant hypoglycemia attributed to the concomitant use of trimethoprim/sulfamethoxazole (TMP/SMX) and repaglinide by a diabetic patient.. A 76-year-old diabetic patient with impaired renal function and no history of hypoglycemia was receiving treatment with repaglinide 1 mg 3 times daily. Five days after TMP/SMX therapy was started for a urinary tract infection, the man developed symptomatic hypoglycemia. Repaglinide and TMP/SMX were stopped and intravenous D-glucose was administered to normalize glucose levels. Repaglinide, but not TMP/SMX, was reintroduced 5 days later and no other hypoglycemic episode occurred. Objective causality assessments revealed that the interaction was probable (World Health Organization-Uppsala Monitoring Centre) or possible (Horn Drug Interaction Probability Scale).. This interaction between TMP/SMX and repaglinide was predictable according to available pharmacokinetic data in healthy subjects. Trimethoprim induced CYP2C8 inhibition, thus increasing the plasma concentration of repaglinide. This interaction is mentioned in the repaglinide product information. To our knowledge, however, no case of symptomatic hypoglycemia associated with a combination of repaglinide and trimethoprim has been described before. This discrepancy may be explained by the subtherapeutic dosage used in the pharmacokinetic study. Moreover, our patient had impaired renal function, which may have led to trimethoprim accumulation and potentiated its interaction with repaglinide. A direct lowering of blood glucose levels due to sulfamethoxazole, also potentiated by renal failure, could also be involved in triggering hypoglycemia.. This interaction between TMP/SMX and repaglinide may have involved inhibition of CYP2C8 by trimethoprim. Clinicians should be aware that this association may lead to symptomatic hypoglycemia, particularly in patients with renal dysfunction.

Topics: Aged; Anti-Infective Agents, Urinary; Blood Glucose; Carbamates; Diabetes Complications; Diabetes Mellitus; Diabetic Neuropathies; Drug Interactions; Energy Intake; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Piperidines; Trimethoprim, Sulfamethoxazole Drug Combination; Urinary Tract Infections

Aim of this prospective study is to evaluate the effect of repaglinide t.i.d. (three times a day) plus single-dose insulin glargine regimen in low-risk type 2 diabetic patients during Ramadan fasting. Participants had been taking the regimen for at least 3 months. Patients with a history of diabetic coma, severe hypoglycemic crisis or repeating attacks of hypoglycemia were excluded. Hypoglycemic unawareness, kidney or liver disease or HbA1c over 8% were also accepted as exclusion criteria. Eleven patients who insisted on this worship and eight non-fasting cases were involved. All were told to make home-glucose-monitorisation weekly and report any hypoglycemic event throughout Ramadan. Fasting blood glucose (FBG), post-prandial blood glucose (PBG) and fructosamine levels, body weights and blood pressures were recorded just before and after Ramadan. Seven patients in each group concluded the follow-up. Any significant change was detected in the parameters in either groups (P>0.05). Glucose control remained unchanged; fructosamine 318.14+/-65.38 versus 317.28+/-52.80 mmol/L in fasting group, 290.71+/-38.48 versus 290+/-38.56 mmol/L in non-fasting group. None of them exhibited either a major or a minor hypoglycemic event. The results of this pilot study indicated that repaglinide t.i.d. plus single-dose insulin glargine regimen was safe for low-risk type 2 diabetic patients who insisted on fasting during Ramadan.

Topics: Adult; Aged; Blood Glucose; Blood Glucose Self-Monitoring; Blood Pressure; Carbamates; Diabetes Mellitus, Type 2; Drug Administration Schedule; Fasting; Female; Fructosamine; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Insulin Glargine; Insulin, Long-Acting; Islam; Male; Middle Aged; Patient Selection; Piperidines; Risk Assessment; Safety; Turkey

Hypoglycaemia is an acute complication associated with intensive treatment of patients with diabetes mellitus. This complication poses a major challenge in diabetes management. Furthermore, severe hypoglycaemia may be life threatening. Although hypoglycaemia is more often associated with insulin treatment, oral hypoglycaemic agents have the potential to trigger hypoglycaemia.. The aim of this study was to quantify the incidence of hypoglycaemic events and to describe the pattern of these incident events during the first 9 months of treatment with four oral antidiabetic drugs, rosiglitazone, pioglitazone, nateglinide and repaglinide, prescribed in general practice in England.. We used data collected for prescription-event monitoring (PEM) studies of rosiglitazone, pioglitazone, nateglinide and repaglinide. PEM is an observational, non-interventional, incept cohort study. Observation time for each patient and incidence rate (IR) per 1000 patient-years of treatment for hypoglycaemia was calculated for each drug cohort. Smoothed hazard estimates were plotted over time. Case/non-case analysis was performed to describe and compare patients who had at least one hypoglycaemic event in the first 9 months of treatment with those who did not.. The total number of patients included in the analysis was 14,373, 12,768, 4,549 and 5,727 in rosiglitazone, pioglitazone, nateglinide and repaglinide cohorts, respectively. From these, 276 patients experienced at least one episode of hypoglycaemia. The IR was between 50% and 100% higher in patients receiving treatment with meglitinides compared with those treated with the thiazolidinediones (TZDs) [IR = 9.94, 9.64, 15.71 and 20.32 per 1,000 patient-years for rosiglitazone, pioglitazone, nateglinide and repaglinide, respectively]. The plot of the hazard function and the estimated shape parameter from the Weibull regression model showed that pioglitazone, nateglinide and repaglinide had non-constant (decreasing) hazards over time, whereas the hazard for rosiglitazone-treated patients was approximately constant over time. Nateglinide and repaglinide had similar shape hazard function, indicating a significantly higher number of hypoglycaemic episodes shortly after starting treatment. For women treated with TZDs, hypoglycaemia was reported more frequently than for men.. This analysis shows that the frequency of reported hypoglycaemia within the study cohorts was relatively low. The rates of hypoglycaemia were not equal between drug classes. Treatment with nateglinide or repaglinide was characterized by a higher incidence of hypoglycaemia at the beginning of treatment. Further investigation is necessary to assess whether women treated with TZDs are more prone to hypoglycaemia than men. Findings from this study should be taken into account with other clinical and pharmacoepidemiological studies.

Topics: Administration, Oral; Adult; Adverse Drug Reaction Reporting Systems; Carbamates; Cohort Studies; Cyclohexanes; Diabetes Mellitus, Type 2; Drug Monitoring; Drug Prescriptions; Female; Humans; Hypoglycemia; Hypoglycemic Agents; Incidence; Male; Middle Aged; Nateglinide; Phenylalanine; Pioglitazone; Piperidines; Rosiglitazone; Sex Factors; Thiazolidinediones

Topics: Anti-Bacterial Agents; Blood Glucose; Carbamates; Dextropropoxyphene; Diabetes Mellitus; Disopyramide; Fluoroquinolones; Humans; Hypoglycemia; Hypoglycemic Agents; Imidazoles; Insulin; Isoniazid; Pentamidine; Piperidines; Quinine; Sulfonylurea Compounds; Tramadol

Topics: Aged, 80 and over; Carbamates; Gastrointestinal Agents; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Octreotide; Piperidines

Many drugs have been reported to interact with repaglinide in patients with type 2 diabetes mellitus, resulting in hypoglycemia. However, to our knowledge, an interaction between clarithromycin and repaglinide in these patients has not been previously reported. We describe an 80-year-old man with end-stage renal disease and well-controlled type 2 diabetes (hemoglobin A1c < 7%) who was hospitalized for treatment of severe hypoglycemia. He had been receiving repaglinide 0.5 mg 3 times/day for the previous 2 years. Clarithromycin 500 mg twice/day had been started for Helicobacter pylori infection several days before admission. Within 48 hours of starting the drug, he developed severe hypoglycemia, which resolved with intravenous glucose administration. However, 48 hours later, the patient again experienced hypoglycemia and was unresponsive. Intravenous glucose administration again resolved the problem. Repaglinide was discontinued, and no further hypoglycemic episodes occurred. Clinicians should be aware of this possible clarithromycin-repaglinide interaction; in particular, in elderly patients with type 2 diabetes who are taking repaglinide and begin clarithromycin therapy, blood glucose levels should be monitored closely for potential dosage adjustment of repaglinide.

Topics: Aged, 80 and over; Anti-Bacterial Agents; Blood Glucose; Carbamates; Clarithromycin; Diabetes Mellitus, Type 2; Drug Interactions; Helicobacter Infections; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Piperidines

This report focuses on a 16-year-old girl afflicted with hypoglycemia after administration of medications for gastrointestinal symptoms. Repaglinide-induced hypoglycemia was suspected when a tablet of repaglinide was noted in the drug package that she had been given. As the use of various types of oral hypoglycemic agents has increased, a definitive diagnosis of drug-induced hypoglycemia has become difficult. It is dangerous for a patient to take oral hypoglycemic agents without the knowledge of hypoglycemic symptoms and initial management. We present this case and review the characteristics of repaglinide to remind physicians and pharmacists to pay more attention to this situation.

Topics: Adolescent; Carbamates; Female; Humans; Hypoglycemia; Hypoglycemic Agents; Medication Errors; Piperidines

We report the first case of repaglinide-induced factitious hypoglycemia in a young male. This case posed a challenging diagnostic dilemma because commercial assays for repaglinide are not available. Furthermore, the patient had a series of positive diagnostic tests such as high proinsulin and localizing intra-arterial calcium stimulation suggestive of insulinoma. This case, again, demonstrates the importance of pure clinical judgment in the face of often-conflicting laboratory data in making a correct diagnosis and the requirement of definitive data for an appropriate therapeutic resolution.

Topics: Adolescent; Blood Glucose; Carbamates; Diagnosis, Differential; Fasting; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Insulin Secretion; Male; Mental Disorders; Piperidines; Poisoning

(1) In France, repaglinide is indicated for the treatment of type 2 diabetes, alone or in combination with metformin, when lifestyle measures are inadequate. (2) The clinical file on repaglinide contains no trials based on morbidity and mortality end points. (3) According to comparative trials versus glucose-lowering sulphonamides, the glucose-lowering effect of repaglinide seems to be equivalent to that of glibenclamide. (4) The adverse effect profile of repaglinide appears similar to that of glucose-lowering sulphonamides. Hypoglycaemia is the most frequent adverse effect. In comparative trials, hypoglycaemia was as frequent in patients on repaglinide as in those on glucose-lowering sulphonamides. (5) Drug interactions can occur between repaglinide and some enzyme inhibitors or inducers. (6) Treatment with repaglinide at the maximal dose recommended in France is nearly 4 times as costly as with glibenclamide at the maximal dose.

Topics: Anti-Infective Agents; Carbamates; Diabetes Mellitus, Type 2; Humans; Hypoglycemia; Hypoglycemic Agents; Piperidines; Sulfonamides; Treatment Outcome

Insulin and glucose levels in response to premeal insulin lispro or repaglinide were evaluated in adult patients with cystic fibrosis-related diabetes (CFRD) without fasting hyperglycemia.. Seven patients with CFRD were fed 1,000-kcal liquid mixed meals. Three study conditions were administered in random order on separate mornings: 1) no premeal diabetes medication, 2) insulin lispro, 0.1 unit/kg body wt premeal and 3) repaglinide 1 mg premeal. Glucose and insulin levels were measured every 20 min for 5 h.. Fasting insulin and glucose levels were normal in patients with CFRD, but the peak glucose level was elevated. Insulin lispro significantly decreased the peak glucose level (P = 0.0004) and the 2-h (P = 0.001) and 5-h (P < 0.0001) glucose area under the curve (AUC). Repaglinide significantly decreased the 5-h glucose AUC (P = 0.03). Neither drug completely normalized cystic fibrosis glucose excursion at the doses used for this study. Insulin lispro significantly increased the 5-h insulin AUC (P = 0.04).. In response to subcutaneous insulin lispro, postprandial glucose excursion was significantly diminished and insulin secretion was enhanced compared with a control meal in which no medication was given to patients with CFRD. The oral agent repaglinide resulted in lesser corrections in these parameters. Neither drug completely normalized glucose or insulin levels, suggesting that the doses chosen for this study were suboptimal. Placebo-controlled longitudinal studies comparing the effectiveness of repaglinide and insulin on glucose metabolic control as well as overall nutrition and body weight are needed to help determine optimal medical treatment of CFRD.

Topics: Adult; Blood Glucose; Carbamates; Cystic Fibrosis; Diabetes Mellitus; Female; Food; Humans; Hypoglycemia; Hypoglycemic Agents; Insulin; Insulin Lispro; Male; Piperidines

Repaglinide is a novel oral antidiabetic agent, marking the development of a new class of drugs for type 2 diabetes. This article examines repaglinide and its position in the treatment of type 2 diabetes.

Topics: Administration, Oral; Blood Glucose; Body Weight; Carbamates; Diabetes Mellitus, Type 2; Humans; Hypoglycemia; Hypoglycemic Agents; Piperidines; Sulfonylurea Compounds

Nateglinide (A-4166) is an amino acid derivative with insulinotrophic action in clinical development for treatment of type 2 diabetes. The aim of this study was to determine whether nateglinide's interaction at the K(ATP) channel/sulfonylurea receptor underlies its more rapid onset and shorter duration of action in animal models. Binding studies were carried out with membranes prepared from RIN-m5F cells and HEK-293 cells expressing recombinant human sulfonylurea receptor 1 (SUR1). The relative order for displacement of [(3)H]glibenclamide in competitive binding experiments with RIN-m5F cell membranes was glibenclamide > glimepiride > repaglinide > glipizide > nateglinide > L-nateglinide > tolbutamide. The results with HEK-293/recombinant human SUR1 cells were similar with the exception that glipizide was more potent than repaglinide. Neither nateglinide nor repaglinide had any effect on the dissociation kinetics for [(3)H]glibenclamide, consistent with both compounds competitively binding to the glibenclamide-binding site on SUR1. Finally, the inability to measure [(3)H]nateglinide binding suggests that nateglinide dissociates rapidly from SUR1. Direct interaction of nateglinide with K(ATP) channels in rat pancreatic beta-cells was investigated with the patch-clamp method. The relative potency for inhibition of the K(ATP) channel was repaglinide > glibenclamide > nateglinide. Kinetics of the inhibitory effect on K(ATP) current showed that the onset of inhibition by nateglinide was comparable to glibenclamide but more rapid than that of repaglinide. The time for reversal of channel inhibition by nateglinide was also faster than with glibenclamide and repaglinide. These results suggest that the unique characteristics of nateglinide are largely the result of its interaction at the K(ATP) channel.

Topics: Animals; ATP-Binding Cassette Transporters; Binding, Competitive; Carbamates; Cell Membrane; Cell Separation; Cells, Cultured; Cyclohexanes; Glucose; Glyburide; Glycosyltransferases; Humans; Hypoglycemia; Hypoglycemic Agents; In Vitro Techniques; Insulin; Islets of Langerhans; KATP Channels; Kinetics; Male; Membrane Proteins; Nateglinide; Patch-Clamp Techniques; Phenylalanine; Piperidines; Potassium Channel Blockers; Potassium Channels; Potassium Channels, Inwardly Rectifying; Rats; Rats, Sprague-Dawley; Repressor Proteins; Saccharomyces cerevisiae Proteins; Sulfonylurea Compounds

Topics: Aged; Carbamates; Diabetes Mellitus, Type 2; Drug Interactions; Humans; Hypoglycemia; Hypoglycemic Agents; Male; Piperidines

Tau is a microtubule-associated protein which is regulated by phosphorylation. Highly phosphorylated tau does not bind microtubules and is the main component of the paired helical filaments seen in Alzheimer's and related neurodegenerative diseases. Recent reports suggested that patterns of tau phosphorylation changed following ischemia and/or reperfusion in vivo. We used an in vitro model employing rat and human neocortical slices to investigate changes in tau phosphorylation which accompany oxygen and glucose deprivation. Western blotting with polyclonal and phosphorylation-sensitive Tau-1 monoclonal antisera was used to monitor changes in tau which accompanied conditions of oxygen and glucose deprivation and reestablishment of these nutrients. In vitro hypoglycemia/hypoxia caused tau to undergo significant dephosphorylation in both rat and human neocortical slices after 30 and 60 min of deprivation. This dephosphorylation was confirmed using immunoprecipitation experiments after radiolabeling tau and other proteins with 32Pi. Okadaic acid, a phosphatase inhibitor, was able to prevent tau dephosphorylation in both control and ischemic slices. Lubeluzole, a benzothiazole derivative with in vivo neuroprotective activity, did not significantly alter patterns of tau phosphorylation. Restoration of oxygen and glucose following varied periods of in vitro hypoxia/hypoglycemia (15-60 min) led to an apparent recovery in phosphorylated tau. These data suggest that tau undergoes a rapid, but reversible dephosphorylation following brief periods of in vitro hypoxia/hypoglycemia in brain slices and that changes in tau phosphorylation help determine the extent of recovery following oxygen and glucose deprivation.

Topics: Animals; Brain Ischemia; Cell Hypoxia; Enzyme Inhibitors; Glucose; Humans; Hypoglycemia; Hypoxia, Brain; Male; Neocortex; Neuroprotective Agents; Okadaic Acid; Organ Culture Techniques; Phosphorylation; Piperidines; Precipitin Tests; Rats; Rats, Sprague-Dawley; tau Proteins; Temporal Lobe; Thiazoles

The stress-induced release of anterior pituitary hormones and changes in hypothalamic content of histamine (HA) and its metabolite tele-methylHA (t-meHA) were studied in male rats during inhibition of HA synthesis or activation or blockade of HA H3 receptors. Pretreatment with the HA synthesis inhibitor alpha-fluoromethylhistidine (alpha-FMH; 200 micrograms intracerebroventricularly (icv) at -120 min) or the specific H3 receptor agonist R(alpha)methylhistamine (RmHA; 10 mg/kg intraperitoneally (ip) at -180 and -60 min) inhibited by 30-80% the responses of prolactin (PRL), corticotropin (ACTH) and beta-endorphin (beta-END) immunoreactivity to 1, 2.5 or 5 min of restraint stress (p < 0.05-0.01), but had no effect on basal secretion of the hormones. The inhibitory effect of the H3 receptor agonist RmHA (10 mg/kg x 2) on the hormone response to 5 min of restraint stress was prevented by simultaneous ip administration of the H3 receptor antagonist thioperamide. alpha-FMH reduced the hypothalamic content of HA 60% and that of t-meHA 30%, while RmHA had no effect on the HA content. Restraint stress for 5 min did not affect the HA and t-meHA contents, which may be due to the short duration of stress exposure. Pretreatment with the H3 receptor antagonist thioperamide (5 or 10 mg/kg ip at -120 min) had no effect on basal or restraint stress-induced release of PRL, ACTH or beta-END, although the compound increased the hypothalamic content of t-meHA 2-fold.(ABSTRACT TRUNCATED AT 250 WORDS)

Topics: Adrenocorticotropic Hormone; Animals; beta-Endorphin; Histamine; Histamine Antagonists; Hypoglycemia; Hypothalamus; Insulin; Kinetics; Male; Methylhistamines; Methylhistidines; Piperidines; Pituitary Hormones, Anterior; Prolactin; Rats; Rats, Wistar; Receptors, Histamine; Receptors, Histamine H3; Restraint, Physical; Stress, Physiological

In order to study the hypothesized impairment of the serotoninergic system in human obesity, an insulin tolerance test (ITT) was carried out on 12 obese normoprolactinemic women and on 6 normal-weight women before (A) and after (B) the administration of a serotoninergic drug, fenfluramine (60 mg twice a day per os for 7 days). After a washout period, a new ITT (C) followed the administration of fenfluramine at the same dose, associated with a specific S2 blocker receptor agent, ritanserin (30 mg/day for the first 2 days and 20 mg/day for a further 5 days). In obese subjects, the prolactin (PRL) response to ITT A was reduced as compared to the controls: in 6 patients ('nonresponders') the PRL levels did not change, while in the other 6 ('responders') they increased (p less than 0.003) but less than in the controls (p less than 0.02). In normal-weight subjects, the administration of fenfluramine alone or with ritanserin did not modify the PRL response to ITT. In the responders, the serotoninergic drug normalized the PRL response to ITT while significantly improving it in the nonresponders; these effects were not antagonized by ritanserin. In conclusion, our data suggest that the serotoninergic system of obese patients is impaired and that the different secretory pattern observed in the two groups before and after fenfluramine may reflect differing degrees of this impairment.

Topics: Adolescent; Adult; Female; Fenfluramine; Humans; Hypoglycemia; Insulin; Middle Aged; Obesity; Piperidines; Prolactin; Ritanserin; Serotonin; Serotonin Antagonists

Twelve healthy chronic schizophrenic patients were treated with the long-acting oral dopamine (DA) receptor blocker penfluridol (100 mg orally) for 6 weeks. Plasma prolactin (PRL) levels were measured during insulin-tolerance tests (ITT) performed at the end of the drug-free period (7-10 days) and during weeks 1 and 6 of penfluridol treatment. Simultaneous PRL and penfluridol plasma levels were determined just prior to, and at 8, 72 and 120 h after penfluridol administration during weeks 1, 5, and 6. During penfluridol treatment women (N = 4) had a greater increase in their maximal PRL increments after ITT as compared to the men (N = 8). Analyses of (peak) plasma penfluridol and PRL concentrations 8 h after penfluridol administration revealed a trend towards lower plasma penfluridol levels during weeks 5 and 6 and significantly higher PRL levels in women compared to men during weeks 1 (P less than 0.01), 5 (P less than 0.02), and 6 (P less than 0.02). The consistent sex-related differences in the PRL responses to DA blockade, and to insulin-induced hypoglycemia and in the penfluridol plasma levels in our study support the view that sex-related changes need to be considered not only in the hormonal responses to various pharmacological agents, but also in the assessment of the plasma levels of these drugs.

Topics: Adult; Female; Humans; Hypoglycemia; Insulin; Kinetics; Male; Middle Aged; Penfluridol; Piperidines; Prolactin; Receptors, Dopamine; Schizophrenia; Sex Factors

This study was carried out to test the hypothesis that sustained hyperprolactinaemia in patients with prolactinomas stimulates hypothalamic dopaminergic activity via a short loop positive feedback effect of prolactin (PRL). The intensity of dopamine (DA) effects on the pituitary around the adenoma was evaluated by measuring thyroid stimulating hormone (TSH) responses to intravenous injection of domperidone (10 mg) a new DA receptor blocking drug that does not penetrate the blood-brain barrier. TSH responses have been compared with those of PRL to the same agent. Eight females with prolactinomas showed greater TSH release after domperidone than nine normal females (sum of TSH increments over 20 min 17.5 +/- 1.7 v. 8.9 +/- 1.5 mu/l, P less than 0.001) whilst PRL release was reduced (sum of PRL increments over 120 min 5.9 +/- 2.4 v. 21.8 +/- 3.8 mu/l x 10(-3), P less than 0.01). Amongst nineteen hyperprolactinaemic females with apparently normal pituitary fossae (plain skull X-ray), ten showed an exaggerated TSH response (delta TSH, 4.2 +/- 0.6 mu/l, range 2.5-9.0 mu/1) and reduced PRL response to domperidone, comparable with established tumor cases. In the remaining nine normal fossa hyperprolactinaemic females, the TSH and PRL responses to dopaminergic were similar to normal females. These results support the initial hypothesis and indicate the coexistence of a defect in the dopaminergic inhibition of PRL release and increased dopaminergic inhibition of TSH release in patients with prolactinomas. The presence of an exaggerated TSH response to DA antagonism in a euthyroid, radiologically normal (plain skull X-ray), hyperprolactinaemic patient is compatible with the presence of an autonomously-functioning, PRL secreting, pituitary microadenoma and the TSH changes seen in these patients after DA antagonist administration can be readily detected by sensitive TSH radioimmunoassay.

Topics: Adenoma; Adolescent; Adult; Benzimidazoles; Domperidone; Female; Growth Hormone; Humans; Hydrocortisone; Hypoglycemia; Hypothalamus; Middle Aged; Piperidines; Pituitary Function Tests; Pituitary Gland, Anterior; Pituitary Neoplasms; Prolactin; Thyrotropin; Thyrotropin-Releasing Hormone

Topics: Angina Pectoris; Body Weight; Chemical and Drug Induced Liver Injury; Diabetes Complications; Diabetes Mellitus; Humans; Hypoglycemia; Neurologic Manifestations; Perhexiline; Piperidines; Polyneuropathies; Triglycerides

Topics: Coronary Disease; Female; Glucose-6-Phosphatase; Humans; Hypoglycemia; Liver; Liver Glycogen; Middle Aged; Perhexiline; Piperidines

Hypoglycaemia occurred in two patients treated with perhexiline maleate. The responsibility of the medication is discussed in each case. Blood insulin levels were increased. Blood perhexiline levels decreased very rapidly in the first patient, though much more slowly in the second.

Topics: Aged; Angina Pectoris; Blood Glucose; Female; Glucagon; Humans; Hypoglycemia; Insulin; Male; Perhexiline; Piperidines

Topics: Adrenergic beta-Antagonists; Aged; Female; Humans; Hypoglycemia; Male; Middle Aged; Perhexiline; Piperidines

Topics: Aged; Angina Pectoris; Female; Humans; Hypoglycemia; Maleates; Perhexiline; Piperidines

Topics: Amino Acids; Animals; Arginine; Blood Glucose; Chlorpropamide; Cycloheptanes; Diabetes Mellitus; Dietary Proteins; Dogs; Glucagon; Glucose; Heptoses; Humans; Hypoglycemia; Insulin; Leucine; Pancreas; Piperidines; Time Factors