tretinoin and Diabetes-Mellitus--Type-1

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

Topics: Baths; Calcinosis; Cat-Scratch Disease; Child; Diabetes Mellitus, Type 1; Folliculitis; Foot Dermatoses; Herpes Simplex; Humans; Hyperhidrosis; Isomerism; Isotretinoin; Joint Diseases; Lyme Disease; Skin Diseases; Tinea; Tretinoin

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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All-trans retinoic acid (ATRA) has been extensively studied as an integrating component of endocrine functions in the pancreas. The aim of this study was to evaluate the effects of ATRA on physiopathological biomarkers in an experimental model of rat with type 1 diabetes induced by alloxan (T1D). Twenty Wistar rats were divided equally into five groups, each receiving a different treatment: a control group (CG), a diabetic group without T1D treatment, a diabetic group treated with ATRA, a diabetic group supplemented with vitamin E (VIT E), and a group that was given olive oil (V). The administration of ATRA for 17 days produced a significant reduction in weight and glucose levels, compared to the T1D and VIT E groups. The evaluation of total antioxidant capacity (TAC) and lipoperoxidation showed no relevant difference among the groups. The results of the histological analysis showed similarities both in the size and in the number of islets of Langerhans in the pancreatic tissue obtained from the ATRA group and the CG. ATRA displayed a significant reduction of glycemic values in diabetic rats. Ultrastructurally, ß-cells, acinar, and ductal cells restored their normal appearance. ATRA can contribute to the recovery of pancreatic damage due to alloxan induction. It seems that the antioxidant effect of ATRA is not responsible for the differences observed.

Topics: Alloxan; Animals; Antioxidants; Blood Glucose; Cell Proliferation; Diabetes Mellitus, Experimental; Diabetes Mellitus, Type 1; Female; Glycemic Index; Pancreas; Rats; Rats, Wistar; Tretinoin; Vitamin E

Genesis and progression of diabetic retinopathy are due to glucotoxicity-induced changes in intracellular milieu in the retina. This study investigated effects of trans-resveratrol on type 1 diabetes-induced changes in gene expressions and retinoic acid metabolism pathway in the RPE (retinal pigment epithelium) of Dark Agouti rats. Microarray analysis showed differential expressions of 833 genes in the RPE of 14 day-long diabetic rats, which increased to 1249 after they received 5 mg/kg trans-resveratrol. Diabetes inhibited the expression of retinoic acid metabolism pathway genes- Lpl, Lrat, RPE65, Rdh5, Rdh10, Rdh12, Rlbp1 and Rbp1 and increased Crabp1. Trans-resveratrol further downregulated the expression of these genes except Lpl, Rdh5, and Rdh12 but upregulated Cyp26b1. RT-PCR showed inhibition of Lrat, Rdh5, and Rdh10 in diabetic rats supplemented with or without trans-resveratrol on 14d. Trans-resveratrol normalized Rdh5 and increased Lrat and Rdh10 transcriptions compared to control and diabetic rats. Trans-resveratrol amplified diabetes-induced inhibition of RPE65, but it inhibited the induced increase in Crabp1 transcription on 30d. Trans-resveratrol reversed the diabetes-induced decrease in Cyp26b1 transcription on 14d and 30d and normalized Cyp3a9 transcription on 30d. Trans-resveratrol normalized the diabetes-induced increase in Rdh5, Rdh10, and Cyp3a9 protein levels, but it further increased Cyp26b1 protein level. In conclusion, diabetes differentially regulates numerous genes in the RPE, including that of retinoic acid metabolism pathway. Trans-resveratrol supplementation is beneficial to normalize long-term effects, but not short-term effects, of diabetes on retinoic acid metabolism pathway in the RPE.

Topics: Alcohol Oxidoreductases; Animals; Diabetes Mellitus, Type 1; Enzyme Induction; Gene Expression Regulation; Male; Rats; Resveratrol; Retinal Pigment Epithelium; Retinoic Acid 4-Hydroxylase; Time Factors; Tretinoin

The gut microbiota modulates the autoimmune pathogenesis of type 1 diabetes (T1D) via mechanisms that remain largely unknown. The inflammasome components are innate immune sensors that are highly influenced by the gut environment and play pivotal roles in maintaining intestinal immune homeostasis. In this study we show that modifications of the gut microbiota induced by oral treatment with Lactobacillaceae-enriched probiotic VSL#3, alone or in combination with retinoic acid (RA), protect NOD mice from T1D by affecting inflammasome at the intestinal level. In particular, we show that VSL#3 treatment inhibits IL-1β expression while enhancing release of protolerogenic components of the inflammasome, such as indoleamine 2,3-dioxygenase (IDO) and IL-33. Those modifications of the intestinal microenvironment in VSL#3-treated NOD mice modulate gut immunity by promoting differentiation of tolerogenic CD103(+) DCs and reducing differentiation/expansion of Th1 and Th17 cells in the intestinal mucosa and at the sites of autoimmunity, that is, within the pancreatic lymph nodes (PLN) of VSL#3-treated NOD mice. Our data provide a link between dietary factors, microbiota composition, intestinal inflammation, and immune homeostasis in autoimmune diabetes and could pave the way for new therapeutic approaches aimed at changing the intestinal microenvironment with probiotics to counterregulate autoimmunity and prevent T1D.

Topics: Administration, Oral; Age Factors; Animals; Autoimmunity; Cellular Microenvironment; Diabetes Mellitus, Type 1; Disease Models, Animal; Gastrointestinal Microbiome; Indoleamine-Pyrrole 2,3,-Dioxygenase; Inflammasomes; Interleukin-1beta; Interleukin-33; Intestines; Lactobacillaceae; Mice, Inbred NOD; Probiotics; Th1 Cells; Th17 Cells; Tretinoin

Patients with type 1 diabetes mellitus are associated with impairment in vitamin A metabolism. This study evaluated whether treatment with retinoic acid, the biologically active metabolite of vitamin A, can ameliorate diabetes. All-trans retinoic acid (atRA) was used to treat streptozotocin (STZ)-induced diabetic mice which revealed atRA administration ameliorated blood glucose levels of diabetic mice. This hyperglycemic amelioration was accompanied by an increase in the amount of β cells co-expressed Pdx1 and insulin and by restoration of the vascular laminin expression. The atRA-induced production of vascular endothelial growth factor-A from the pancreatic islets was possibly the key factor that mediated the restoration of islet vascularity and recovery of β-cell mass. Furthermore, the combination of islet transplantation and atRA administration significantly rescued hyperglycemia in diabetic mice. These findings suggest that vitamin A derivatives can potentially be used as a supplementary treatment to improve diabetes management and glycemic control.

Topics: Animals; Blood Glucose; Diabetes Mellitus, Type 1; Dose-Response Relationship, Drug; Hypoglycemic Agents; Insulin; Islets of Langerhans; Male; Mice; Streptozocin; Treatment Outcome; Tretinoin; Vascular Endothelial Growth Factor A

We previously reported that diabetes decreased the expression of renal tight junction (TJ) proteins claudin-5 in glomerulus, and claudin-2 and occludin in proximal tubule through an oxidative stress dependent way. Now we investigated whether all-trans retinoic acid (atRA), a compound that plays a relevant role in kidney maintenance and that possesses antioxidant properties, prevents loss of TJ proteins in streptozotocin (STZ)-treated rats. atRA was administered daily by gavage (1mg/kg) from Days 3-21 after STZ administration. atRA attenuated loss of body weight, proteinuria and natriuresis but it did not prevent hyperglucemia. Other metabolic alterations, such as: increased kidney injury molecule (KIM)-1, oxidative stress, protein kinase C (PKC) beta 2, NADPH oxidase subunits (p47(phox) and gp91(phox)) expressions and endothelial nitric oxide synthase (eNOS) uncoupling, and decreased nitric oxide synthesis, nuclear factor-erythroid-2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1) expressions were also attenuated by atRA. In vitro scavenging capacity assays showed that atRA scavenged peroxyl radicals (ROO•), singlet oxygen ((1)O2) and hypochlorous acid (HOCl) in a concentration-dependent manner. Decreased expressions of occludin, claudins-2 and -5 induced by diabetes were ameliorated by atRA. We also found that diabetes induced tyrosine nitration (3-NT), SUMOylation and phosphorylation in serine residues of claudin-2 and atRA prevented these changes. In conclusion, atRA exerted nephroprotective effects by attenuating oxidative stress and preventing loss of renal TJ proteins.

Topics: Animals; Diabetes Mellitus, Type 1; Female; Kidney; Oxidative Stress; Rats; Rats, Wistar; Tight Junction Proteins; Tretinoin

Type 1 diabetes is one of the most extensively studied autoimmune diseases, but the cellular and molecular mechanisms leading to T cell-mediated destruction of insulin-producing β cells are still not well understood. In this study, we show that regulatory T cells (T(regs)) in NOD mice undergo age-dependent loss of suppressor functions exacerbated by the decreased ability of activated effector T cells to upregulate Foxp3 and generate T(regs) in the peripheral organs. This age-dependent loss is associated with reduced intercellular communication mediated by gap junctions, which is caused by impaired upregulation and decreased expression of connexin 43. Regulatory functions can be corrected, even in T cells isolated from aged, diabetic mice, by a synergistic activity of retinoic acid, TGF-β, and IL-2, which enhance connexin 43 and Foxp3 expression in T(regs) and restore the ability of conventional CD4(+) T cells to upregulate Foxp3 and generate peripherally derived T(regs). Moreover, we demonstrate that suppression mediated by T(regs) from diabetic mice is enhanced by a novel reagent, which facilitates gap junction aggregation. In summary, our report identifies gap junction-mediated intercellular communication as an important component of the T(reg) suppression mechanism compromised in NOD mice and suggests how T(reg) mediated immune regulation can be improved.

Topics: Age Factors; Animals; Cell Communication; Cell Differentiation; Connexin 43; Diabetes Mellitus, Type 1; Female; Forkhead Transcription Factors; Gap Junctions; Immunosuppressive Agents; Interleukin-2; Male; Mice; Mice, Inbred C57BL; Mice, Inbred NOD; Smad2 Protein; Smad3 Protein; STAT5 Transcription Factor; T-Lymphocytes, Regulatory; Transforming Growth Factor beta; Tretinoin; Up-Regulation

While much is known about tolerogenic dendritic cell effects on forkhead box protein 3 (FoxP3)⁺ regulatory T cells, virtually nothing is known about their effects on another arm of immunoregulation that is mediated by a subpopulation of immunosuppressive B cells. These cells suppress rheumatoid arthritis, lupus and inflammatory bowel disease in mice, and functional defects have been reported in human lupus. We show that co-stimulation-impaired tolerogenic dendritic cells that prevent and reverse type 1 diabetes mellitus induce the proliferation of human immunosuppressive B cells in vitro. We also show that the suppressive properties of these B cells concentrate inside the CD19⁺ CD24⁺ B cell population and more specifically inside the CD19⁺ CD24⁺ CD38⁺ regulatory B cell population. We discovered that B cell conversion into suppressive cells in vitro is partially dependent on dendritic cell production of retinoic acid and also that CD19⁺ CD24⁺ CD38⁺ B regulatory cells express retinoic acid receptors. Taken together, our data suggest a model whereby part of the immunosuppressive properties of human tolerogenic dendritic cells could be mediated by retinoic acid which, in addition to its known role in favouring T cell differentiation to FoxP3⁺ regulatory T cells, acts to convert B cells into immunosuppressive cells.

Topics: ADP-ribosyl Cyclase 1; Antigens, CD19; B-Lymphocytes, Regulatory; CD24 Antigen; Cell Differentiation; Cell Proliferation; Cells, Cultured; Dendritic Cells; Diabetes Mellitus, Type 1; Forkhead Transcription Factors; Humans; Immune Tolerance; Immunosuppression Therapy; T-Lymphocytes, Regulatory; Tretinoin

MicroRNAs (miRNAs) are crucial for regulatory T cell (Treg) stability and function. We report that microRNA-10a (miR-10a) is expressed in Tregs but not in other T cells including individual thymocyte subsets. Expression profiling in inbred mouse strains demonstrated that non-obese diabetic (NOD) mice with a genetic susceptibility for autoimmune diabetes have lower Treg-specific miR-10a expression than C57BL/6J autoimmune resistant mice. Inhibition of miR-10a expression in vitro leads to reduced FoxP3 expression levels and miR-10a expression is lower in unstable "exFoxP3" T cells. Unstable in vitro TGF-ß-induced, iTregs do not express miR-10a unless cultured in the presence of retinoic acid (RA) which has been associated with increased stability of iTreg, suggesting that miR-10a might play a role in stabilizing Treg. However, genetic ablation of miR-10a neither affected the number and phenotype of natural Treg nor the capacity of conventional T cells to induce FoxP3 in response to TGFβ, RA, or a combination of the two. Thus, miR-10a is selectively expressed in Treg but inhibition by antagomiRs or genetic ablation resulted in discordant effects on FoxP3.

Topics: Animals; Cells, Cultured; Diabetes Mellitus, Type 1; Gene Expression; Mice; Mice, Inbred NOD; MicroRNAs; T-Lymphocytes, Regulatory; Transforming Growth Factor beta; Tretinoin

Immunization with Schistosoma mansoni soluble antigen preparations protects non-obese diabetic (NOD) mice against the development of type 1 diabetes. These preparations have long been known to induce Th2 responses in vitro and in vivo. Recently, two separate groups have reported that ω-1, a well-characterized glycoprotein in S. mansoni soluble egg antigens (SEA), which with IL-4 inducing principle of S. mansoni eggs (IPSE/α-1) is one of the two major glycoproteins secreted by live eggs, is a major SEA component responsible for this effect. We found that ω-1 induces Foxp3 as well as IL-4 expression when injected in vivo. We confirmed that ω-1 conditions DCs to drive Th2 responses and further demonstrated that ω-1 induces Foxp3(+) T cells from NOD mouse naïve T cells. In contrast, IPSE/α-1 did not drive Foxp3 responses. The in vitro development of Foxp3-expressing T cells by ω-1 was TGF-β- and retinoic acid-dependent. Our work, therefore, identifies ω-1 as an important factor for the induction of Foxp3(+) T cells by SEA in NOD mice.

Topics: Animals; CD4-Positive T-Lymphocytes; Cell Differentiation; Cells, Cultured; Dendritic Cells; Diabetes Mellitus, Type 1; Egg Proteins; Forkhead Transcription Factors; Helminth Proteins; Immunization; Interleukin-4; Mice; Mice, Inbred BALB C; Mice, Inbred NOD; Schistosoma mansoni; Th2 Cells; Transforming Growth Factor beta; Tretinoin

Numerous wrinkles are observed in the skin of streptozotocin (STZ)-induced type 1 diabetic rats, which are similar to those seen in vitamin A-deficient (VAD) rats. Retinoic acid (RA), the active form of vitamin A, promotes the production of collagen in dermis and induces cell growth and inhibition of epidermal differentiation in skin tissues. Normal skin function is maintained by the extracellular matrix (ECM)-degrading enzymes, matrix metalloproteinase (MMP) and hyaluronidase (HAase). This study is the first comparison of MMP and HAase activities in skin tissues of type 1 diabetic, VAD and RA-treated animal models. In skin tissues of type 1 diabetic and VAD rats or VAD mice, both MMP-2 and HAase activities increased as compared with controls. In contrast, MMP and HAase activities were reduced in the skin tissues of RA-treated mice. Blood retinol levels in type 1 diabetic rats were lower than controls. These results indicate a close relationship between type 1 diabetes and vitamin A-deficiency on MMP and HAase in skin tissues, suggesting that type 1 diabetic rats could be vitamin A-deficient. Vitamin A-derived RA might be a significant regulator of ECM-degrading enzyme expression and diabetic symptoms.

Topics: Aging; Animals; Diabetes Mellitus, Type 1; Extracellular Matrix; Hyaluronoglucosaminidase; Male; Matrix Metalloproteinases; Mice; Mice, Hairless; Rats; Rats, Wistar; Skin; Skin Aging; Tretinoin; Vitamin A Deficiency

Type 1 diabetes (T1D) is an autoimmune disease that shows familial aggregation in humans and likely has genetic determinants. Disease linkage studies have revealed many susceptibility loci for T1D in mice and humans. The mouse T1D susceptibility locus insulin-dependent diabetes susceptibility 3 (Idd3), which has a homologous genetic interval in humans, encodes cytokine genes Il2 and Il21 and regulates diabetes and other autoimmune diseases; however, the cellular and molecular mechanisms of this regulation are still being elucidated. Here we show that T cells from NOD mice produce more Il21 and less Il2 and exhibit enhanced Th17 cell generation compared with T cells from NOD.Idd3 congenic mice, which carry the protective Idd3 allele from a diabetes-resistant mouse strain. Further, APCs from NOD and NOD.Idd3 mice played a central role in this differential Th17 cell development, and IL-21 signaling in APCs was pivotal to this process. Specifically, NOD-derived APCs showed increased production of pro-Th17 mediators and dysregulation of the retinoic acid (RA) signaling pathway compared with APCs from NOD.Idd3 and NOD.Il21r-deficient mice. These data suggest that the protective effect of the Idd3 locus is due, in part, to differential RA signaling in APCs and that IL-21 likely plays a role in this process. Thus, we believe APCs provide a new candidate for therapeutic intervention in autoimmune diseases.

Topics: Animals; Antigen-Presenting Cells; CD11b Antigen; Cell Differentiation; Diabetes Mellitus, Type 1; Female; Gene Expression Profiling; Genetic Predisposition to Disease; Humans; Interleukin-2; Interleukin-21 Receptor alpha Subunit; Interleukins; Mice; Mice, Congenic; Mice, Inbred NOD; Mice, Knockout; Signal Transduction; Th17 Cells; Tretinoin

Antigen-specific regulatory CD4(+) T cells have been described but there are few reports on regulatory CD8(+) T cells. We generated islet-specific glucose-6-phosphatase catalytic subunit-related protein (IGRP)-specific regulatory CD8(+) T cells from 8.3-NOD transgenic mice. CD8(+) T cells from 8.3-NOD splenocytes were cultured with IGRP, splenic dendritic cells (SpDCs), TGF-beta, and all-trans retinoic acid (ATRA) for 5days. CD8(+) T cells cultured with either IGRP alone or IGRP and SpDCs in the absence of TGF-beta and ATRA had low Foxp3(+) expression (1.7+/-0.9% and 3.2+/-4.5%, respectively). In contrast, CD8(+) T cells induced by exposure to IGRP, SpDCs, TGF-beta, and ATRA showed the highest expression of Foxp3(+) in IGRP-reactive CD8(+) T cells (36.1+/-10.6%), which was approximately 40-fold increase compared with that before induction culture. CD25 expression on CD8(+) T cells cultured with IGRP, SpDCs, TGF-beta, and ATRA was only 7.42%, whereas CD103 expression was greater than 90%. These CD8(+) T cells suppressed the proliferation of diabetogenic CD8(+) T cells from 8.3-NOD splenocytes in vitro and completely prevented diabetes onset in NOD-scid mice in cotransfer experiments with diabetogenic splenocytes from NOD mice in vivo. Here we show that exposure to ATRA and TGF-beta induces CD8(+)Foxp3(+) T cells ex vivo, which suppress diabetogenic T cells in vitro and in vivo.

Topics: Animals; CD8-Positive T-Lymphocytes; Diabetes Mellitus, Type 1; Forkhead Transcription Factors; Glucose-6-Phosphatase; Mice; Mice, Inbred NOD; Mice, Transgenic; Proteins; T-Lymphocytes, Regulatory; Transforming Growth Factor beta; Tretinoin

All-trans retinoic acid (ATRA), a potent derivative of vitamin A, can regulate immune responses. However, its role in inducing immune tolerance associated with the prevention of islet inflammation and inhibition of type 1 diabetes remains unclear.. We investigated the mechanisms underlying the potential immunoregulatory effect of ATRA on type 1 diabetes using an adoptive transfer animal model of the disease.. Our data demonstrated that ATRA treatment inhibited diabetes in NOD mice with established insulitis. In addition, it suppressed interferon (IFN)-gamma-producing CD4(+) and CD8(+) T effector (Teff) cells and expanded T regulatory (Treg) cells in recipient mice transferred with diabetic NOD splenocytes, without affecting either interleukin (IL)-17--or IL-4-producing cells. Consistent with these results, ATRA reduced T-bet and STAT4 expression in T-cells and decreased islet-infiltrating CD8(+) T-cells, suppressing their activation and IFN-gamma/granzyme B expression. Depletion of CD4(+)CD25(+) Treg cells impaired the inhibitory effect of ATRA on islet-infiltrating T-cells and blocked its protective effect on diabetes. Therefore, ATRA treatment induced Treg cell-dependent immune tolerance by suppressing both CD4(+) and CD8(+) Teff cells while promoting Treg cell expansion.. These results demonstrate that ATRA treatment promoted in vivo expansion of Treg cells and induced Treg cell-dependent immune tolerance by suppressing IFN-gamma-producing T-cells, without affecting Th17 cells. Our study also provides novel insights into how ATRA induces immune tolerance in vivo via its effects on Teff and Treg cells.

Topics: Animals; Antineoplastic Agents; CD4-Positive T-Lymphocytes; CD8-Positive T-Lymphocytes; Diabetes Mellitus, Type 1; Female; Granzymes; Interferon-gamma; Interleukin-17; Interleukin-2 Receptor alpha Subunit; Interleukin-4; Mice; Mice, Inbred NOD; Mice, SCID; T-Lymphocytes; T-Lymphocytes, Regulatory; Tretinoin

Topics: Animals; CD4-Positive T-Lymphocytes; CD8-Positive T-Lymphocytes; Diabetes Mellitus, Type 1; Interferon-gamma; Mice; T-Lymphocytes; T-Lymphocytes, Regulatory; Tretinoin; Vitamins

Retinoids have a variety of biological activities, including immunomodulatory action in a number of inflammatory and autoimmune conditions. Considering the pathogenesis of type 1 diabetes mellitus (T1D), in this study we examined the potential role for retinoids, etretinate and all-trans-retinoic acid (ATRA) in preclinical models of human T1D. When administered prophylactically to CBA/H mice made diabetic with multiple low doses of streptozotocin (MLD-STZ), both drugs effectively prevented clinical signs of diabetes. Prevention of T1D was associated with reduced emergence of primed (autoreactive) CD4(+) CD25(+) T cells, but not with the emergence of Foxp3(+) Treg in the peripheral compartments. Moreover, the animals receiving ATRA exhibited reduced Th1/Th17 response and nitric oxide (NO) production in the peripheral lymphoid tissues, thus shifting the balance towards the anti-inflammatory cytokines. In NOD mice with spontaneous form of diabetes, ATRA prophylaxis, starting at a time point immediately before T1D onset, markedly reduced hyperglycemia and incidence of the disease. However, administration of ATRA to NOD mice in which the proportion and function of CD4(+)Foxp3(+) Treg cells was abrogated by cyclophosphamide (CY), failed to permit progression to T1D. These findings suggest that effectiveness of T1D suppression by retinoids depends on the presence of Tregs which down-modulate immunoinflammatory events at the second "check-point" and allow diabetes progression.

Topics: Animals; Diabetes Mellitus, Type 1; Disease Progression; Etretinate; Keratolytic Agents; Mice; Mice, Inbred NOD; Nitric Oxide; Premedication; Retinoids; Streptozocin; T-Lymphocytes, Helper-Inducer; T-Lymphocytes, Regulatory; Tretinoin

The concepts of sensitivity, specificity, and predictive value can be used to assess patterns of birth defects associated with human teratogens. Although sensitivity of any single defect is generally low for many known teratogens, the presence of specific defect combinations is usually predictive of the teratogen. To evaluate the patterns of birth defects associated with diabetic embryopathy, a sensitivity-specificity analysis was performed on 4929 infants with major defects ascertained by the population-based Metropolitan Atlanta Congenital Defects Program between 1968 and 1980. By reviewing hospital records, maternal insulin-dependent diabetes mellitus was confirmed in 26 infants. Patterns of defects were evaluated among infants born to mothers with insulin-dependent diabetes mellitus and compared with the rest of the Metropolitan Atlanta Congenital Defects Program case population. Multiple logistic regression analysis was used to assess defect combinations that predict for insulin-dependent diabetes mellitus. Of 26 infants, 8 had multiple defects. However, most defects and their combinations were poorly sensitive and predictive for insulin-dependent diabetes mellitus. The predictive value for insulin-dependent diabetes mellitus was greatest for the combination of vertebral and cardiovascular anomalies (6.5%). Also, several pathogenetic mechanisms were noted among patients with insulin-dependent diabetes mellitus, such as cell migration defects, cell death events, deformations, and cardiac flow lesions. The inability to find a clear-cut phenotype for diabetic embryopathy may be due to several etiologic factors and mechanisms associated with diabetic embryopathy.

Topics: Abnormalities, Drug-Induced; Congenital Abnormalities; Diabetes Mellitus, Type 1; Female; Georgia; Humans; Infant, Newborn; Pregnancy; Pregnancy in Diabetics; Rubella Syndrome, Congenital; Sensitivity and Specificity; Thalidomide; Tretinoin