indigo-carmine and Disease-Models--Animal

COVID-19 as a viral disease has brought up the need to exercise more than before due to its physiological effects on health. Therefore, this study investigates the effect of 12-week of aerobic exercise on female students' hormone levels and lipid profile with polycystic ovary syndrome (PCOS) during the COVID-19 pandemic.. Using a 12-week quasi-experimental with pretest, posttest research design among 40 Iranian female students aged 18-14 with PCOS, we randomly allocated the participants to either an experimental (they performed aerobic exercises three 60-minute sessions per week at home using content production) or a control condition. Their anthropometric and blood samples (e.g., testosterone, estrogen, prolactin, and lipid profile) were taken in two stages before and after the training protocol.. Findings demonstrated that performing aerobic exercises is an effective and non-invasive method that could have a positive effect on young girls' PCOS during COVID-19 pandemic.. La pandémie de COVID-19, en tant que maladie virale, a fait ressortir la nécessité de faire de l’exercice plus que jamais en raison de ses effets physiologiques sur la santé. Par conséquent, cette étude examine l’effet de 12 semaines d’exercice aérobique sur les niveaux hormonaux et le profil lipidique d’étudiantes atteintes du syndrome d’ovaires polykystiques (SOPK) pendant la pandémie de COVID-19.. En utilisant un modèle de recherche quasi-expérimental de 12 semaines avec pré-test, post-test auprès de 40 étudiantes iraniennes âgées de 18 à 14 ans atteintes du SOPK, nous avons réparti au hasard les participantes entre une série expérimentale (elles ont effectué des exercices aérobiques à raison de trois séances de 60 minutes par semaine à la maison) et une série contrôle. Les échantillons anthropométriques et sanguins (testostérone, œstrogène, prolactine et profil lipidique) ont été prélevés en deux étapes, avant et après le protocole d’entraînement.. Les résultats ont démontré que la pratique d’exercices d’aérobic est une méthode efficace et non invasive qui pourrait avoir un effet positif sur le SOPK des jeunes filles pendant la pandémie de COVID-19.. Our research showed that even less than 5 GBq irradiation could induce a transient testicular dysfunction in the first 3 months of therapy, but it was mostly reversible after 12 months.. The online version contains supplementary material available at 10.1007/s13204-023-02822-5.. Embelin is predicted to have a high probability of immunotoxicity potential and affect drug metabolism by inhibiting CYP2D6. In addition, it affects food intake, weight gain, and the number of implantations in pregnant rats. Therefore, it is highly recommended not to take embelin and embelin-rich plants during pregnancy. Further. The online version contains supplementary material available at 10.1007/s42965-023-00306-9.. The online version contains supplementary material available at 10.1007/s11696-023-02771-x.. The online version contains supplementary material available at 10.1007/s00477-023-02476-3.. This study ascribes for a new immunomodulatory role for IL11 during tumor development that is amenable to anti-cytokine based therapy of colon cancer.. Inflammation response do not seem to be enough to explain all the Essure-related adverse outcomes, suggesting the involvement of other biological mechanisms.. NCT03281564.. Inflammation and fibrosis are found in the surrounding tubal tissue around the Essure. Adult patients with BED with co-occurring obesity who have good responses to acute treatment with naltrexone/bupropion should be offered maintenance treatment with naltrexone/bupropion.. dp/dtmax in PiCCO parameter can be used as a bedside indicator to evaluate cardiac function in SIC patients due to its simplicity and ease of operation. Esmolol control of heart rate in SIC patients can improve cardiac function and reduce short-term mortality.. Inverted microscopy showed that compared with the NC group, the OGD/R group had poor cell status, swollen cytosol, visible cell lysis fragments and significantly lower cell activity [(49.1±2.7)% vs. (100.0±9.7)%, P < 0.01]; compared with the OGD/R group, the HW group had improved cell status and remarkably higher cell activity [(63.3±1.8)% vs. (49.1±2.7)%, P < 0.01]. Transmission electron microscopy showed that the neuronal nuclear membrane of cells in the OGD/R group was lysed and a higher number of autophagic lysosomes were visible compared with the NC group; compared with the OGD/R group, the neuronal damage of cells in the HW group was reduced and the number of autophagic lysosomes was notably decreased. The results of immunofluorescence assay showed that the expressions of LC3 and Beclin-1 were outstandingly enhanced in the OGD/R group compared with the NC group, and the expressions of LC3 and Beclin-1 were markedly weakened in the HW group compared with the OGD/R group. Western blotting assay showed that the expressions were prominently higher in both LC3II/I and Beclin-1 in the OGD/R group compared with the NC group (LC3II/I: 1.44±0.05 vs. 0.37±0.03, Beclin-1/β-actin: 1.00±0.02 vs. 0.64±0.01, both P < 0.01); compared with the OGD/R group, the protein expression of both LC3II/I and Beclin-1 in the HW group cells were notably lower (LC3II/I: 0.54±0.02 vs. 1.44±0.05, Beclin-1/β-actin: 0.83±0.07 vs. 1.00±0.02, both P < 0.01).. Hydrogen-rich water has a significant protective effect on OGD/R-causing HT22 cell injury, and the mechanism may be related to the inhibition of autophagy.. The prevalence of delirium in ICU patients is over 50%, with hypoactive delirium being the most common. Age, APACHE score at ICU admission, neurological disease, sepsis and duration of mechanical ventilation were all independent risk factors for the development of delirium in ICU patients. More than half of patients with delirium were still delirious when they discharged from the ICU.. For individuals ≥75 years, plasma Aβ42 and P-tau181 might not be associated with cognitive impairment, and MRI parameters, including PVWMH, LVBI and cortical atrophy, are related to CI. The cognitive statuses of people over 75 years old were used as the endpoint event in this study. Therefore, it can be considered that these MRI markers might have more important clinical significance for early assessment and dynamic observation, but more studies are still needed to verify this hypothesis.. We recommend using the Art/Zn complex owing to its moderate inhibitory and antiviral effects against the SARS-CoV-2 with a low cytotoxic effect on host (Vero E6) cells. We suggest conducting further prospective studies to investigate the biological effects of Art/Zn in animal models at different concentrations for testing its clinical efficacy and safety in inhibiting SARS-CoV-2 activities.. The R/T sequence resulted in a significantly longer OS and PFS and improved disease control compared with the reverse sequence. R and T given not sequentially have similar impacts on survival. More data are needed to define the best sequence and to explore the efficacy of sequential (T/R or R/T) treatment combined with molecular-targeted drugs.

Topics: Actin Cytoskeleton; Actins; Adaptor Proteins, Signal Transducing; Adenocarcinoma; Adenosine Triphosphate; Adsorption; Adult; Africa, Eastern; Aged; Air Pollutants; Air Pollution; Air Pollution, Indoor; Alcohol Drinking; Allergens; Alzheimer Disease; Amyotrophic Lateral Sclerosis; Animals; Anti-Bacterial Agents; Antibodies; Antibodies, Immobilized; Antigen Presentation; Antigens, CD; Antineoplastic Agents; Antineoplastic Combined Chemotherapy Protocols; Antioxidants; Apoptosis; Aptamers, Nucleotide; Asthma; Asthma, Exercise-Induced; Atrophy; Autophagy; Azoospermia; Bacillus cereus; Bacterial Infections; Beclin-1; Bile Duct Neoplasms; Bile Ducts, Intrahepatic; Biofouling; Biological Monitoring; Biomarkers; Biomarkers, Tumor; Biosensing Techniques; Blastocyst; Bone Neoplasms; Bone Regeneration; Bronchoconstriction; Burkitt Lymphoma; C9orf72 Protein; Campylobacter; Campylobacter Infections; Campylobacter jejuni; Carcinogenesis; Carcinoma, Hepatocellular; Carcinoma, Pancreatic Ductal; Carcinoma, Squamous Cell; Cardiomyopathies; Caregivers; Carmine; Case-Control Studies; Catalysis; Cattle; Cause of Death; CCAAT-Enhancer-Binding Protein-alpha; CD8-Positive T-Lymphocytes; Cefepime; Cell Differentiation; Cell Line, Tumor; Cell Nucleus; Cell Transdifferentiation; Chelating Agents; Chemical and Drug Induced Liver Injury, Chronic; Chemoradiotherapy, Adjuvant; Child; Child, Preschool; China; Chlorquinaldol; Cholangiocarcinoma; Cholera; Chromatin; Clinical Trials as Topic; Cognitive Dysfunction; Cohort Studies; Colonic Neoplasms; Colorectal Neoplasms; Colorimetry; Cooking; Coordination Complexes; COVID-19; Creatinine; CRISPR-Cas Systems; Critical Care; Critical Illness; Cross-Sectional Studies; Cryopreservation; Cryoprotective Agents; Cysteine; Cytokines; Device Removal; Diet; Diet, High-Fat; Diet, Mediterranean; Dietary Supplements; Dimethyl Sulfoxide; Dipeptides; Disease Models, Animal; Dithiothreitol; DNA; DNA Repeat Expansion; DNA, Bacterial; DNA, Complementary; Dopamine; Electrochemical Techniques; Electrodes; Endocannabinoids; Environmental Exposure; Environmental Monitoring; Environmental Pollutants; Enzyme-Linked Immunosorbent Assay; Erlotinib Hydrochloride; Escherichia coli; Escherichia coli O157; Esophageal Neoplasms; Esophagitis, Peptic; Ethylene Glycol; Europium; Exanthema; Fallopian Tubes; Feces; Female; Fertilization in Vitro; Fluoresceins; Fluorescent Dyes; Follicle Stimulating Hormone; Follow-Up Studies; Food Microbiology; Forced Expiratory Volume; Forkhead Transcription Factors; Frontotemporal Dementia; G-Quadruplexes; Galactose; Gastroenteritis; Gastrointestinal Diseases; Gastrointestinal Microbiome; Gastrointestinal Neoplasms; Gastrointestinal Tract; Gene Frequency; Genetic Association Studies; Genetic Predisposition to Disease; Genital Neoplasms, Female; Genome-Wide Association Study; Genome, Viral; Genomics; Genotype; Glucose; Glutathione; Glycerol; Gold; Graphite; GTPase-Activating Proteins; Heat-Shock Proteins; Heme Oxygenase-1; Hepacivirus; Hepatitis C; Hepatocytes; Histamine; Histocompatibility Antigens Class II; Hoarseness; Hospice and Palliative Care Nursing; Humans; Hydrogen; Hydrogen Peroxide; Hydrogen Sulfide; Hydroxybenzoates; Hydroxyl Radical; Hydroxymethylglutaryl-CoA Reductase Inhibitors; Hyperthermia, Induced; Hysteroscopy; Immunoassay; Indigo Carmine; Inflammation; Inflammatory Bowel Diseases; Insulin Resistance; Intensive Care Units; Interleukin-11; Interleukin-6; Interleukins; Iodine Radioisotopes; Iran; Iridium; Islets of Langerhans; Kinetics; Lactation; Lactobacillus; Lactobacillus plantarum; Lamins; Latin America; Lead; Lectins; Leukopenia; Ligands; Limit of Detection; Lipopolysaccharides; Lipoprotein Lipase; Liver; Liver Cirrhosis; Liver Neoplasms; Lolium; Luminescent Measurements; Luminol; Lung; Luteinizing Hormone; Macrophages; Magnetic Phenomena; Magnetic Resonance Imaging; Male; Malnutrition; Maltose; Manganese Compounds; Maternal Nutritional Physiological Phenomena; Melatonin; Metabolic Engineering; Metal Nanoparticles; Metallocenes; Metaplasia; Methicillin-Resistant Staphylococcus aureus; Methylation; Mevalonic Acid; Mexico; Mice; Mice, Inbred C57BL; Mice, Transgenic; Microbial Sensitivity Tests; Microbiota; MicroRNAs; Milk; Mitomycin; Molecular Diagnostic Techniques; Molecular Docking Simulation; Monte Carlo Method; Moringa oleifera; Multiple Sclerosis; Muscle Strength; Muscle, Skeletal; Nanocomposites; Nanotubes, Carbon; Neoadjuvant Therapy; Neoplasms; Neurodegenerative Diseases; Neurotransmitter Agents; NF-E2-Related Factor 2; Nickel; Nitrogen Dioxide; Non-alcoholic Fatty Liver Disease; Nucleic Acid Amplification Techniques; Nucleic Acid Hybridization; Nucleocapsid Proteins; Nutritional Status; Obesity; Osteogenesis; Osteosarcoma; Oxidation-Reduction; Oxides; Oxygen; Oxyquinoline; Pain; Palliative Care; Pancreatic Neoplasms; Pandemics; Particulate Matter; Peroxidase; Peroxidases; Phagocytosis; Phaseolus; Photothermal Therapy; Point-of-Care Systems; Polyethyleneimine; Polymers; Polymorphism, Single Nucleotide; Polysomnography; Postoperative Complications; Pregnancy; Pregnant Women; Prenatal Exposure Delayed Effects; Prevalence; Printing, Three-Dimensional; Probability; Probiotics; Prognosis; Prophages; Prospective Studies; Proteomics; Proto-Oncogene Proteins; Pseudomonas aeruginosa; Pseudomonas putida; Pulmonary Disease, Chronic Obstructive; Pulmonary Embolism; Pyridines; Pyrroles; Quality of Life; Quinolones; Rabbits; Rats; Rats, Sprague-Dawley; Reactive Oxygen Species; Real-Time Polymerase Chain Reaction; Receptors, Histamine; Receptors, Histamine H2; Recombinases; Rectal Neoplasms; Reperfusion Injury; Respiration; Respiratory Function Tests; Respiratory Rate; Respiratory Sounds; Retrospective Studies; rho GTP-Binding Proteins; Risk Assessment; Risk Factors; RNA; RNA, Messenger; RNA, Ribosomal, 16S; Robotic Surgical Procedures; Running; Rural Population; Saccharomyces cerevisiae; Salpingectomy; Sarcopenia; SARS-CoV-2; Seeds; Semen; Sensitivity and Specificity; Sepsis; Shock, Septic; Signal Transduction; Silicon Dioxide; Silver; Sirtuin 1; Skin Neoplasms; Sleep Apnea, Obstructive; Soil; Spain; Spectrum Analysis, Raman; Sperm Retrieval; Spermatozoa; Spirometry; Staphylococcus aureus; STAT3 Transcription Factor; Stereoisomerism; Sterilization, Tubal; Stroke Volume; Sulfadiazine; Sulfites; Superoxide Dismutase; Surface Plasmon Resonance; tau Proteins; Testis; Testosterone; Thioredoxin-Disulfide Reductase; Thyroid Neoplasms; Thyroidectomy; Trans-Activators; Transcription Factor AP-1; Treatment Outcome; Triazoles; Triclosan; Trifluridine; Tumor Microenvironment; Tumor Necrosis Factor-alpha; United States; Uracil; Vagina; Vegetables; Ventricular Function, Left; Ventricular Pressure; Vibrio cholerae; Vietnam; Virulence; Vital Capacity; Vitrification; Walking; Water; Water Pollutants, Radioactive; Whole Genome Sequencing; Wind; YAP-Signaling Proteins; Zeolites; Zinc Oxide

COVID-19 as a viral disease has brought up the need to exercise more than before due to its physiological effects on health. Therefore, this study investigates the effect of 12-week of aerobic exercise on female students' hormone levels and lipid profile with polycystic ovary syndrome (PCOS) during the COVID-19 pandemic.. Using a 12-week quasi-experimental with pretest, posttest research design among 40 Iranian female students aged 18-14 with PCOS, we randomly allocated the participants to either an experimental (they performed aerobic exercises three 60-minute sessions per week at home using content production) or a control condition. Their anthropometric and blood samples (e.g., testosterone, estrogen, prolactin, and lipid profile) were taken in two stages before and after the training protocol.. Findings demonstrated that performing aerobic exercises is an effective and non-invasive method that could have a positive effect on young girls' PCOS during COVID-19 pandemic.. La pandémie de COVID-19, en tant que maladie virale, a fait ressortir la nécessité de faire de l’exercice plus que jamais en raison de ses effets physiologiques sur la santé. Par conséquent, cette étude examine l’effet de 12 semaines d’exercice aérobique sur les niveaux hormonaux et le profil lipidique d’étudiantes atteintes du syndrome d’ovaires polykystiques (SOPK) pendant la pandémie de COVID-19.. En utilisant un modèle de recherche quasi-expérimental de 12 semaines avec pré-test, post-test auprès de 40 étudiantes iraniennes âgées de 18 à 14 ans atteintes du SOPK, nous avons réparti au hasard les participantes entre une série expérimentale (elles ont effectué des exercices aérobiques à raison de trois séances de 60 minutes par semaine à la maison) et une série contrôle. Les échantillons anthropométriques et sanguins (testostérone, œstrogène, prolactine et profil lipidique) ont été prélevés en deux étapes, avant et après le protocole d’entraînement.. Les résultats ont démontré que la pratique d’exercices d’aérobic est une méthode efficace et non invasive qui pourrait avoir un effet positif sur le SOPK des jeunes filles pendant la pandémie de COVID-19.. Our research showed that even less than 5 GBq irradiation could induce a transient testicular dysfunction in the first 3 months of therapy, but it was mostly reversible after 12 months.. The online version contains supplementary material available at 10.1007/s13204-023-02822-5.. Embelin is predicted to have a high probability of immunotoxicity potential and affect drug metabolism by inhibiting CYP2D6. In addition, it affects food intake, weight gain, and the number of implantations in pregnant rats. Therefore, it is highly recommended not to take embelin and embelin-rich plants during pregnancy. Further. The online version contains supplementary material available at 10.1007/s42965-023-00306-9.. The online version contains supplementary material available at 10.1007/s11696-023-02771-x.. The online version contains supplementary material available at 10.1007/s00477-023-02476-3.. This study ascribes for a new immunomodulatory role for IL11 during tumor development that is amenable to anti-cytokine based therapy of colon cancer.. Inflammation response do not seem to be enough to explain all the Essure-related adverse outcomes, suggesting the involvement of other biological mechanisms.. NCT03281564.. Inflammation and fibrosis are found in the surrounding tubal tissue around the Essure. Adult patients with BED with co-occurring obesity who have good responses to acute treatment with naltrexone/bupropion should be offered maintenance treatment with naltrexone/bupropion.. dp/dtmax in PiCCO parameter can be used as a bedside indicator to evaluate cardiac function in SIC patients due to its simplicity and ease of operation. Esmolol control of heart rate in SIC patients can improve cardiac function and reduce short-term mortality.. Inverted microscopy showed that compared with the NC group, the OGD/R group had poor cell status, swollen cytosol, visible cell lysis fragments and significantly lower cell activity [(49.1±2.7)% vs. (100.0±9.7)%, P < 0.01]; compared with the OGD/R group, the HW group had improved cell status and remarkably higher cell activity [(63.3±1.8)% vs. (49.1±2.7)%, P < 0.01]. Transmission electron microscopy showed that the neuronal nuclear membrane of cells in the OGD/R group was lysed and a higher number of autophagic lysosomes were visible compared with the NC group; compared with the OGD/R group, the neuronal damage of cells in the HW group was reduced and the number of autophagic lysosomes was notably decreased. The results of immunofluorescence assay showed that the expressions of LC3 and Beclin-1 were outstandingly enhanced in the OGD/R group compared with the NC group, and the expressions of LC3 and Beclin-1 were markedly weakened in the HW group compared with the OGD/R group. Western blotting assay showed that the expressions were prominently higher in both LC3II/I and Beclin-1 in the OGD/R group compared with the NC group (LC3II/I: 1.44±0.05 vs. 0.37±0.03, Beclin-1/β-actin: 1.00±0.02 vs. 0.64±0.01, both P < 0.01); compared with the OGD/R group, the protein expression of both LC3II/I and Beclin-1 in the HW group cells were notably lower (LC3II/I: 0.54±0.02 vs. 1.44±0.05, Beclin-1/β-actin: 0.83±0.07 vs. 1.00±0.02, both P < 0.01).. Hydrogen-rich water has a significant protective effect on OGD/R-causing HT22 cell injury, and the mechanism may be related to the inhibition of autophagy.. The prevalence of delirium in ICU patients is over 50%, with hypoactive delirium being the most common. Age, APACHE score at ICU admission, neurological disease, sepsis and duration of mechanical ventilation were all independent risk factors for the development of delirium in ICU patients. More than half of patients with delirium were still delirious when they discharged from the ICU.. For individuals ≥75 years, plasma Aβ42 and P-tau181 might not be associated with cognitive impairment, and MRI parameters, including PVWMH, LVBI and cortical atrophy, are related to CI. The cognitive statuses of people over 75 years old were used as the endpoint event in this study. Therefore, it can be considered that these MRI markers might have more important clinical significance for early assessment and dynamic observation, but more studies are still needed to verify this hypothesis.. We recommend using the Art/Zn complex owing to its moderate inhibitory and antiviral effects against the SARS-CoV-2 with a low cytotoxic effect on host (Vero E6) cells. We suggest conducting further prospective studies to investigate the biological effects of Art/Zn in animal models at different concentrations for testing its clinical efficacy and safety in inhibiting SARS-CoV-2 activities.. The R/T sequence resulted in a significantly longer OS and PFS and improved disease control compared with the reverse sequence. R and T given not sequentially have similar impacts on survival. More data are needed to define the best sequence and to explore the efficacy of sequential (T/R or R/T) treatment combined with molecular-targeted drugs.

Topics: Actin Cytoskeleton; Actins; Adaptor Proteins, Signal Transducing; Adenocarcinoma; Adenosine Triphosphate; Adsorption; Adult; Africa, Eastern; Aged; Air Pollutants; Air Pollution; Air Pollution, Indoor; Alcohol Drinking; Allergens; Alzheimer Disease; Amyotrophic Lateral Sclerosis; Animals; Anti-Bacterial Agents; Antibodies; Antibodies, Immobilized; Antigen Presentation; Antigens, CD; Antineoplastic Agents; Antineoplastic Combined Chemotherapy Protocols; Antioxidants; Apoptosis; Aptamers, Nucleotide; Asthma; Asthma, Exercise-Induced; Atrophy; Autophagy; Azoospermia; Bacillus cereus; Bacterial Infections; Beclin-1; Bile Duct Neoplasms; Bile Ducts, Intrahepatic; Biofouling; Biological Monitoring; Biomarkers; Biomarkers, Tumor; Biosensing Techniques; Blastocyst; Bone Neoplasms; Bone Regeneration; Bronchoconstriction; Burkitt Lymphoma; C9orf72 Protein; Campylobacter; Campylobacter Infections; Campylobacter jejuni; Carcinogenesis; Carcinoma, Hepatocellular; Carcinoma, Pancreatic Ductal; Carcinoma, Squamous Cell; Cardiomyopathies; Caregivers; Carmine; Case-Control Studies; Catalysis; Cattle; Cause of Death; CCAAT-Enhancer-Binding Protein-alpha; CD8-Positive T-Lymphocytes; Cefepime; Cell Differentiation; Cell Line, Tumor; Cell Nucleus; Cell Transdifferentiation; Chelating Agents; Chemical and Drug Induced Liver Injury, Chronic; Chemoradiotherapy, Adjuvant; Child; Child, Preschool; China; Chlorquinaldol; Cholangiocarcinoma; Cholera; Chromatin; Clinical Trials as Topic; Cognitive Dysfunction; Cohort Studies; Colonic Neoplasms; Colorectal Neoplasms; Colorimetry; Cooking; Coordination Complexes; COVID-19; Creatinine; CRISPR-Cas Systems; Critical Care; Critical Illness; Cross-Sectional Studies; Cryopreservation; Cryoprotective Agents; Cysteine; Cytokines; Device Removal; Diet; Diet, High-Fat; Diet, Mediterranean; Dietary Supplements; Dimethyl Sulfoxide; Dipeptides; Disease Models, Animal; Dithiothreitol; DNA; DNA Repeat Expansion; DNA, Bacterial; DNA, Complementary; Dopamine; Electrochemical Techniques; Electrodes; Endocannabinoids; Environmental Exposure; Environmental Monitoring; Environmental Pollutants; Enzyme-Linked Immunosorbent Assay; Erlotinib Hydrochloride; Escherichia coli; Escherichia coli O157; Esophageal Neoplasms; Esophagitis, Peptic; Ethylene Glycol; Europium; Exanthema; Fallopian Tubes; Feces; Female; Fertilization in Vitro; Fluoresceins; Fluorescent Dyes; Follicle Stimulating Hormone; Follow-Up Studies; Food Microbiology; Forced Expiratory Volume; Forkhead Transcription Factors; Frontotemporal Dementia; G-Quadruplexes; Galactose; Gastroenteritis; Gastrointestinal Diseases; Gastrointestinal Microbiome; Gastrointestinal Neoplasms; Gastrointestinal Tract; Gene Frequency; Genetic Association Studies; Genetic Predisposition to Disease; Genital Neoplasms, Female; Genome-Wide Association Study; Genome, Viral; Genomics; Genotype; Glucose; Glutathione; Glycerol; Gold; Graphite; GTPase-Activating Proteins; Heat-Shock Proteins; Heme Oxygenase-1; Hepacivirus; Hepatitis C; Hepatocytes; Histamine; Histocompatibility Antigens Class II; Hoarseness; Hospice and Palliative Care Nursing; Humans; Hydrogen; Hydrogen Peroxide; Hydrogen Sulfide; Hydroxybenzoates; Hydroxyl Radical; Hydroxymethylglutaryl-CoA Reductase Inhibitors; Hyperthermia, Induced; Hysteroscopy; Immunoassay; Indigo Carmine; Inflammation; Inflammatory Bowel Diseases; Insulin Resistance; Intensive Care Units; Interleukin-11; Interleukin-6; Interleukins; Iodine Radioisotopes; Iran; Iridium; Islets of Langerhans; Kinetics; Lactation; Lactobacillus; Lactobacillus plantarum; Lamins; Latin America; Lead; Lectins; Leukopenia; Ligands; Limit of Detection; Lipopolysaccharides; Lipoprotein Lipase; Liver; Liver Cirrhosis; Liver Neoplasms; Lolium; Luminescent Measurements; Luminol; Lung; Luteinizing Hormone; Macrophages; Magnetic Phenomena; Magnetic Resonance Imaging; Male; Malnutrition; Maltose; Manganese Compounds; Maternal Nutritional Physiological Phenomena; Melatonin; Metabolic Engineering; Metal Nanoparticles; Metallocenes; Metaplasia; Methicillin-Resistant Staphylococcus aureus; Methylation; Mevalonic Acid; Mexico; Mice; Mice, Inbred C57BL; Mice, Transgenic; Microbial Sensitivity Tests; Microbiota; MicroRNAs; Milk; Mitomycin; Molecular Diagnostic Techniques; Molecular Docking Simulation; Monte Carlo Method; Moringa oleifera; Multiple Sclerosis; Muscle Strength; Muscle, Skeletal; Nanocomposites; Nanotubes, Carbon; Neoadjuvant Therapy; Neoplasms; Neurodegenerative Diseases; Neurotransmitter Agents; NF-E2-Related Factor 2; Nickel; Nitrogen Dioxide; Non-alcoholic Fatty Liver Disease; Nucleic Acid Amplification Techniques; Nucleic Acid Hybridization; Nucleocapsid Proteins; Nutritional Status; Obesity; Osteogenesis; Osteosarcoma; Oxidation-Reduction; Oxides; Oxygen; Oxyquinoline; Pain; Palliative Care; Pancreatic Neoplasms; Pandemics; Particulate Matter; Peroxidase; Peroxidases; Phagocytosis; Phaseolus; Photothermal Therapy; Point-of-Care Systems; Polyethyleneimine; Polymers; Polymorphism, Single Nucleotide; Polysomnography; Postoperative Complications; Pregnancy; Pregnant Women; Prenatal Exposure Delayed Effects; Prevalence; Printing, Three-Dimensional; Probability; Probiotics; Prognosis; Prophages; Prospective Studies; Proteomics; Proto-Oncogene Proteins; Pseudomonas aeruginosa; Pseudomonas putida; Pulmonary Disease, Chronic Obstructive; Pulmonary Embolism; Pyridines; Pyrroles; Quality of Life; Quinolones; Rabbits; Rats; Rats, Sprague-Dawley; Reactive Oxygen Species; Real-Time Polymerase Chain Reaction; Receptors, Histamine; Receptors, Histamine H2; Recombinases; Rectal Neoplasms; Reperfusion Injury; Respiration; Respiratory Function Tests; Respiratory Rate; Respiratory Sounds; Retrospective Studies; rho GTP-Binding Proteins; Risk Assessment; Risk Factors; RNA; RNA, Messenger; RNA, Ribosomal, 16S; Robotic Surgical Procedures; Running; Rural Population; Saccharomyces cerevisiae; Salpingectomy; Sarcopenia; SARS-CoV-2; Seeds; Semen; Sensitivity and Specificity; Sepsis; Shock, Septic; Signal Transduction; Silicon Dioxide; Silver; Sirtuin 1; Skin Neoplasms; Sleep Apnea, Obstructive; Soil; Spain; Spectrum Analysis, Raman; Sperm Retrieval; Spermatozoa; Spirometry; Staphylococcus aureus; STAT3 Transcription Factor; Stereoisomerism; Sterilization, Tubal; Stroke Volume; Sulfadiazine; Sulfites; Superoxide Dismutase; Surface Plasmon Resonance; tau Proteins; Testis; Testosterone; Thioredoxin-Disulfide Reductase; Thyroid Neoplasms; Thyroidectomy; Trans-Activators; Transcription Factor AP-1; Treatment Outcome; Triazoles; Triclosan; Trifluridine; Tumor Microenvironment; Tumor Necrosis Factor-alpha; United States; Uracil; Vagina; Vegetables; Ventricular Function, Left; Ventricular Pressure; Vibrio cholerae; Vietnam; Virulence; Vital Capacity; Vitrification; Walking; Water; Water Pollutants, Radioactive; Whole Genome Sequencing; Wind; YAP-Signaling Proteins; Zeolites; Zinc Oxide

Topics: Animals; Anti-Inflammatory Agents; Colitis; Colitis, Ulcerative; Dextran Sulfate; Disease Models, Animal; Indigo Carmine; Mice; Reactive Oxygen Species

Indigo (IND) and indirubin (INB) have demonstrated a synergistic effect in treating ulcerative colitis at a ratio of 7.5:1. However, the colon mucus layer, a critical physiological barrier against external threats, is also a biological barrier, limiting the potential for effective drug delivery to the lamina propria for regulating inflammatory cells. Inspired by the potential of Hyaluronic acid (HA), to enhance cellular uptake by inflammatory cells, and Pluronic® F127 (F127), known for overcoming the mucus barrier, this study innovatively developed INB/IND nanosuspensions by co-modifying with F127 and HA. Moreover, inulin serves a dual purpose as a spray protective agent and a regulator of intestinal flora. Therefore, it was incorporated into INB/IND nanosuspensions for subsequent spray drying, resulting in the preparation of INB/IND nanocrystals (INB/IND-NC). The mucus penetration of INB/IND-NC was 24.30 times that of the control group. Besides, INB/IND-NC exhibited enhanced cellular uptake properties proximately twice that of Raw INB/IND. Importantly, INB/IND-NC exhibited improved therapeutic efficacy in DSS-induced mice by regulating the expression of cytokines, regulating immune responses via downregulating the expression of macrophages, neutrophils, and dendritic cells and maintaining intestinal flora homeostasis. Our study provides a new perspective for applying natural products for treating inflammatory diseases.

Topics: Animals; Colitis; Colitis, Ulcerative; Colon; Dextran Sulfate; Disease Models, Animal; Gastrointestinal Microbiome; Hyaluronic Acid; Indigo Carmine; Inulin; Mice; Mice, Inbred C57BL; Nanoparticles

Isochlorogenic acid A (ICGA-A) is a dicaffeoylquinic acid widely found in various medicinal plants or vegetables, such as Lonicerae japonicae Flos and chicory, and multiple properties of ICGA-A have been reported. However, the therapeutic effect of ICGA-A on colitis is not clear, and thus were investigated in our present study, as well as the underlying mechanisms. Here we found that ICGA-A alleviated clinical symptoms of dextran sodium sulfate (DSS) induced colitis model mice, including disease activity index (DAI) and histological damage. In addition, DSS-induced inflammation was significantly attenuated in mice given ICGA-A supplementation. ICGA-A reduced the fraction of neutrophils in peripheral blood and the infiltration of neutrophils and macrophages in colon tissue, and reduced pro-inflammatory cytokine production and tight junctions in mouse models. Furthermore, ICGA-A down-regulated expression of STAT3 and up-regulated the protein level of IκBα. Our in vitro studies confirmed that ICGA-A inhibited the mRNA expression of pro-inflammatory cytokines. ICGA-A blocked the phosphorylation of STAT3, p65, and IκBα, suppressed the expression STAT3 and p65. In addition, the present study also demonstrated that ICGA-A had no obvious toxicity on normal cells and organs. Taken together, we conclude that ICGA-A mitigates experimental ulcerative colitis (UC) at least in part by inhibiting the STAT3/NF-кB signaling pathways. Hence, ICGA-A may be a promising and effective drug for treating UC.

Topics: Animals; Colitis; Colitis, Ulcerative; Colon; Dextran Sulfate; Disease Models, Animal; Mice; Mice, Inbred C57BL; NF-kappa B; NF-KappaB Inhibitor alpha

Topics: Animals; Anti-Inflammatory Agents; Antioxidants; Disease Models, Animal; Hydrogen Peroxide; Indigo Carmine; Indole Alkaloids; Mice; Mice, Inbred mdx; Models, Theoretical; Muscle, Skeletal; Muscular Dystrophy, Duchenne; Signal Transduction; Sirtuin 1

Heart failure (HF), the main cause of death in patients with many cardiovascular diseases, has been reported to be closely related to the complicated pathogenesis of autophagy, apoptosis, and inflammation. Notably, Si-Miao-Yong-An decoction (SMYAD) is a traditional Chinese medicine (TCM) used to treat cardiovascular disease; however, the main active components and their relevant mechanisms remain to be discovered. Based on our previous ultra-performance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry (UPLC-Q/TOF-MS) results, we identified angoriside C (AC) and 3,5-dicaffeoylquinic acid (3,5-DiCQA) as the main active components of SMYAD. In vivo results showed that AC and 3,5-DiCQA effectively improved cardiac function, reduced the fibrotic area, and alleviated isoproterenol (ISO)-induced myocarditis in rats. Moreover, AC and 3,5-DiCQA inhibited ISO-induced autophagic cell death by inhibiting the PDE5A/AKT/mTOR/ULK1 pathway and inhibited ISO-induced apoptosis by inhibiting the TLR4/NOX4/BAX pathway. In addition, the autophagy inhibitor 3-MA was shown to reduce ISO-induced apoptosis, indicating that ISO-induced autophagic cell death leads to excess apoptosis. Taken together, the main active components AC and 3,5-DiCQA of SMYAD inhibit the excessive autophagic cell death and apoptosis induced by ISO by inhibiting the PDE5A-AKT and TLR4-NOX4 pathways, thereby reducing myocardial inflammation and improving heart function to alleviate and treat a rat ISO-induced heart failure model and cell heart failure models. More importantly, the main active components of SMYAD will provide new insights into a promising strategy that will promote the discovery of more main active components of SMYAD for therapeutic purposes in the future.

Topics: Animals; Apoptosis; Autophagy; Cell Line; Cell Survival; Chlorogenic Acid; Coumaric Acids; Cyclic Nucleotide Phosphodiesterases, Type 5; Disease Models, Animal; Drugs, Chinese Herbal; Heart Failure; Isoproterenol; Male; Myoblasts; Myocardium; NADPH Oxidase 4; Proto-Oncogene Proteins c-akt; Rats, Sprague-Dawley; Signal Transduction; Toll-Like Receptor 4; Trisaccharides

Persicaria tinctoria (Aiton) Spach, also called Polygonum tinctorium Lour., (family Polygonaceae) for indigo plant has been traditionally useful as a medicinal or edible plant with a variety of biological activities. Of these, much attention has been paid to their anti-inflammatory activities. We have recently demonstrated that indigo leaves contain high levels of flavonol O-glycosides with 3,5,4'-trihydroxy-6,7-methylenedioxyflavone (TMF) as an aglycone. In this study, we attempted to evaluate anti-inflammatory activities of TMF-O-glycosides and free TMF prepared from indigo leaves after extraction with hot water. Free TMF was found to appreciably down-regulate the gene expression of pro-inflammatory cytokines including interleukin (IL)-1β, IL-6, inducible nitric oxide, and tumor necrosis factor-α in cultured macrophage cells stimulated with lipopolysaccharide while up-regulating the expression of anti-inflammatory IL-10. However, no study has been conducted regarding in vivo anti-inflammatory activities of TMF-O-glycosides and free TMF until now. Here, we assessed in vivo anti-inflammatory effects of these dietary compounds on ulcerative colitis in a murine model of inflammatory bowel disease by the induction with dextran sulfate sodium (DSS). Histological evaluation revealed that both TMF-O-glycosides and free TMF effectively protected against DSS-induced ulcerative colitis. The analysis of digested products by liquid chromatography and mass spectrometry led us to detect free TMF as a predominant metabolite in the feces of mice fed with TMF-O-glycosides. Moreover, free TMF was later detected as glucuronyl conjugates of TMF in the liver of mice fed with both fractions. These results indicate the effective digestion of TMF-O-glycosides and the subsequent absorption of free TMF in the gut of mice for exerting anti-inflammatory effects. Taken together, our findings suggest that dietary TMF-O-glycosides could be promising natural sources for the utilization as herbal medicine and nutraceuticals to expect in vivo anti-inflammatory activities.

Topics: Animals; Anti-Inflammatory Agents; Biological Availability; Cytokines; Dextran Sulfate; Disease Models, Animal; Glycosides; Indigo Carmine; Inflammatory Bowel Diseases; Mice; Plant Leaves

Anaphylactic shock can be defined as an acute syndrome, and it is the most severe clinical manifestation of allergic diseases. Anaphylactoid reactions are similar to anaphylactic events but differ in the pathophysiological mechanism. Nitric oxide (NO) inhibitors during anaphylaxis suggest that NO might decrease the signs and symptoms of anaphylaxis but exacerbate associated vasodilation. Therefore, blocking the effects of NO on vascular smooth muscle by inhibiting the guanylate cyclase (GC) would be a reasonable strategy. This study aimed to investigate the effects of NO/cGMP pathway inhibitors methylene blue (MB), Nω-nitro-L-arginine methyl ester hydrochloride (L-NAME), and indigo carmine (IC) in shock induced by compound 48/80 (C48/80) in rats. The effect was assessed by invasive blood pressure measurement. Shock was initiated by C48/80 intravenous bolus injection 5 min before (prophylactic) or after (treatment) the administration of the inhibitors MB (3 mg/kg), L-NAME (1 mg/kg), and IC (3 mg/kg). Of the groups that received drugs as prophylaxis for shock, only the IC group did not present the final systolic blood pressure (SBP) better than the C48/80 group. Regarding shock treatment with the drugs tested, all groups had the final SBP similar to the C48/80group. Altogether, our results suggested that inhibition of GC and NO synthase in NO production pathway was not sufficient to revert hypotension or significantly improve survival.

Topics: Anaphylaxis; Animals; Cyclic GMP; Disease Models, Animal; Enzyme Inhibitors; Indigo Carmine; Male; Methylene Blue; Muscle, Smooth, Vascular; NG-Nitroarginine Methyl Ester; Nitric Oxide; Rats; Rats, Wistar

Indigo naturalis (IN) is a traditional Chinese medicine, named Qing-Dai, which is extracted from indigo plants and has been used to treat patients with inflammatory bowel disease (IBD) in China and Japan. Though there are notable effects of IN on colitis, the mechanisms remain elusive. Regarding the significance of alterations of intestinal flora related to IBD and the poor water solubility of the blue IN powder, we predicted that the protective action of IN on colitis may occur through modifying gut microbiota. To investigate the relationships of IN, colitis, and gut microbiomes, a dextran sulfate sodium (DSS)-induced mice colitis model was tested to explore the protective effects of IN on macroscopic colitis symptoms, the histopathological structure, inflammation cytokines, and gut microbiota, and their potential functions. Sulfasalazine (SASP) was used as the positive control. Firstly, because it was a mixture, the main chemical compositions of indigo and indirubin in IN were detected by ultra-performance liquid chromatography (UPLC). The clinical activity score (CAS), hematoxylin and eosin (H&E) staining results, and enzyme-linked immunosorbent assay (ELISA) results in this study showed that IN greatly improved the health conditions of the tested colitis mice, ameliorated the histopathological structure of the colon tissue, down-regulated pro-inflammatory cytokines, and up-regulated anti-inflammatory cytokines. The results of 16S rDNA sequences analysis with the Illumina MiSeq platform showed that IN could modulate the balance of gut microbiota, especially by down-regulating the relative quantity of

Topics: Animals; Biopsy; Colitis; Cytokines; Dextran Sulfate; Disease Models, Animal; Gastrointestinal Microbiome; Immunohistochemistry; Indigo Carmine; Inflammation Mediators; Intestinal Mucosa; Metagenomics; Mice; Molecular Structure; RNA, Ribosomal, 16S

Artemisia scoparia Waldst. et Kitaib (AS) (Oriental wormwood, known as Bissuk in Korea) is a plant used in cosmetic and pharmaceutical treatments. However, the effect of AS on atopic dermatitis (AD) has not been described.. To examine the inhibitory effect of AS on AD using a murine model.. We applied either AS, the butanol-extracted fraction of AS (Bu-OH) or 3,5-dicaffeoyl-epi-quinic acid (DEQA, a major component of Bu-OH) topically for 3 weeks to 2,4-dinitrofluorobenzene (DNFB)-induced skin lesions in BALB/c mice.. AS, Bu-OH and DEQA suppressed the clinical symptoms of DNFB-induced skin lesions and he associated scratching behaviour. Numbers of inflammatory cells infiltrating skin lesions were significantly reduced by AS or Bu-OH application but not by DEQA. In addition, AS significantly suppressed serum levels of histamine and IgE, while Bu-OH significantly suppressed serum levels of histamine, IgE, thymic stromal lymphopoietin (TSLP), interleukin (IL)-4 and IL-6, and DEQA significantly suppressed serum levels of histamine, IgE, TSLP and IL-4 in DNFB-induced AD mice. In skin lesions, AS and Bu-OH significantly reduced inflammatory cytokines, whereas DEQA did not. AS, Bu-OH and DEQA all significantly suppressed caspase-1 activities.. These results demonstrate the anti-AD effects of AS, Bu-OH and DEQA, and suggest that all three have therapeutic potential.

Topics: Administration, Topical; Animals; Artemisia; Caspase 1; Chlorogenic Acid; Dermatitis, Atopic; Dinitrofluorobenzene; Disease Models, Animal; Medicine, Korean Traditional; Mice; Mice, Inbred BALB C; Phytotherapy; Plant Extracts; RNA, Messenger; Skin

We have developed a real-time imaging technique for diagnosis of kidney diseases which is composed of two steps, staining renal cells safely with food dyes and optical sectioning of living renal tissue to obtain histological images by multiphoton microscopy (MPM). Here, we demonstrated that the MPM imaging with food dyes, including erythrosine and indigo carmine, could be used as fluorescent agents to visualize renal functions and structures such as glomerular bloodstreams, glomerular filtration, and morphology of glomeruli and renal tubules. We also showed that the kidneys of IgA nephropathy model-mice stained with the food dyes presented histopathological characteristics different from those observed in normal kidneys. The use of the food dyes enhances the quality of tissue images obtained by MPM and offers the potential to contribute to a clinical real-time diagnosis of kidney diseases.

Topics: Animals; Disease Models, Animal; Erythrosine; Fluorescent Dyes; Glomerulonephritis, IGA; Indigo Carmine; Kidney; Mice; Microscopy, Fluorescence; Optical Imaging; Staining and Labeling

The aqueous infusions of the aerial parts of Artemisia herba-alba Asso and Ajuga iva Schreber, prepared in accordance with the traditional procedure used in the local folk medicine, have been analysed for their composition and content of phytochemical constituents and examined for their antidiabetic effectiveness in alloxan-induced diabetic rats. Oral administration of A. herba-alba and A. iva infusions was studied in normal and alloxan-induced diabetic rats, which were randomly divided into nine groups, each group consisting of six animals. The drug preparations (100, 200, and 300 mg/kg b. w.) of each plant were given orally to the rats of each group twice daily for 15 days. Compositional analysis of the aqueous infusions revealed the presence of several polyphenols as main components. A. herba-alba infusion was characterised by mono- and di-cinnamoylquinic acids, with 5-caffeoylquinic (chlorogenic) acid being the main compound, followed by 3,5-dicaffeoylquinic acid. Vicenin-2 (apigenin 6,8-di-C-glucoside) appeared to be the most abundant among flavonoids. On the other hand, A. iva showed the exclusive presence of flavonoids, with the flavanone naringin present in relatively high levels together with several apigenin (flavone) derivatives. Oral administration of 300 mg/kg b. w. of the aqueous infusions of A. herba-alba and A. iva exhibited a significant reduction in blood glucose content, showing a much more efficient antidiabetic activity compared to glibenclamide, the oral hypoglycaemic agent used as a positive control in this study. These results suggest that A. herba-alba and A. iva possess significant antidiabetic activity, as they were able to improve the biochemical damage in alloxan-induced diabetes in rats.

Topics: Ajuga; Alloxan; Animals; Apigenin; Artemisia; Blood Glucose; Chlorogenic Acid; Diabetes Mellitus, Experimental; Disease Models, Animal; Glucosides; Glyburide; Hypoglycemic Agents; Medicine, Traditional; Molecular Structure; Plants, Medicinal; Polyphenols; Rats; Rats, Wistar

We investigated the effects of an ethanol extract of C. denticulatum (EECD) in a mouse model of glaucoma established by optic nerve crush (ONC), and found that EECD significantly protected against retinal ganglion cell (RGC) death caused by ONC. Furthermore, EECD effectively protected against N-methyl-d-aspartate-induced damage to the rat retinas. In vitro, EECD attenuated transformed retinal ganglion cell (RGC-5) death and significantly blunted the up-regulation of apoptotic proteins and mRNA level induced by 1-buthionine-(S,R)-sulfoximine combined with glutamate, reduced reactive oxygen species production by radical species, and inhibited lipid peroxidation. The major EECD components were found to be chicoric acid and 3,5-dicaffeoylquinic acid (3,5-DCQA) that have shown beneficial effects on retinal degeneration both in vitro and in vivo studies. Thus, EECD could be used as a natural neuroprotective agent for glaucoma, and chicoric acid and 3,5-DCQA as mark compounds for the development of functional food.

Topics: Animals; Apoptosis; Asteraceae; Caffeic Acids; Chlorogenic Acid; Coumaric Acids; Disease Models, Animal; Glaucoma; Lipid Peroxidation; Male; Mice; Mice, Inbred ICR; N-Methylaspartate; Nerve Crush; Neuroprotective Agents; Optic Nerve; Oxidative Stress; Plant Extracts; Rats; Rats, Sprague-Dawley; Retinal Diseases; Succinates

Flower bud of Tussilago farfara L. is widely used for the treatment of cough, bronchitis and asthmatic disorders in the Traditional Chinese Medicine. However, due to the increasing demands, adulteration with rachis is frequently encountered in the marketplace. No report demonstrated the chemical and pharmacological differences between flower bud and rachis before.. The water extracts were orally administrated to mice. Ammonia induced mice coughing model was used to evaluate the antitussive activity. The expectorant activity was evaluated by volume of phenol red in mice's tracheas. Metabolites were identified directly from the crude extracts through 1D- and 2D-NMR spectra. A metabolic profiling carried out by (1)H NMR spectroscopy and multivariate data analysis was applied to crude extracts from flower bud and rachis.. Flower bud significantly lengthened the latent period of cough, decreased cough frequency caused by ammonia and enhanced tracheal phenol red output in expectorant evaluation. Principal component analysis (PCA) yielded good separation between flower bud and rachis, and corresponding loading plot showed that the phenolic compounds, organic acid, sugar, amino acid, terpene and sterol contributed to the discrimination.. These findings provide pharmacological and chemical evidence that only flower bud can be used as the antitussive and expectorant herbal drug. The high concentration of chlorogenic acid, 3,5-dicaffeoylquinic acid, rutin in flower buds may be related with the antitussive and expectorant effects of Flos Farfara. To guarantee the clinical effect, rachis should be picked out before use.

Topics: Ammonia; Animals; Antitussive Agents; Chlorogenic Acid; Cough; Disease Models, Animal; Drug Contamination; Drugs, Chinese Herbal; Expectorants; Female; Flowers; Magnetic Resonance Spectroscopy; Male; Metabolome; Metabolomics; Mice; Mice, Inbred ICR; Multivariate Analysis; Phenolsulfonphthalein; Phytotherapy; Plant Stems; Principal Component Analysis; Rutin; Severity of Illness Index; Trachea; Tussilago

2-isoprenylhydroquinone-1-glucoside (1), 3,5-dicaffeoylquinic acid (2), and 3,5-dicaffeoylquinic acid methyl ester (3), isolated from Phagnalon rupestre, improved the contact hypersensitivity response to 2,4,6-trinitrochlorobenzene in mice. These phenolics reduced ear swelling and IL-1β content by 50% 24 h after challenge; in addition, 2 inhibited tumor necrosis factor-α by 53%. All three compounds also reduced interleukin-2 content by 50% 72 h after challenge. Both 2 and 3 inhibited metalloproteinase-9 levels in the skin lesions by 66% and 41%, respectively, and lowered cyclooxygenase-2 expression by 44% and 49%, respectively, at 24 h. Moreover, 2 was effective against atopic dermatitis induced by repeated application of 2,4,6-trinitrochlorobenzene; it attenuated edema by over 40% from day 7 and inhibited inflammatory cell infiltration by 44% at day 22. In addition, 1-3 reduced metalloproteinase-9 expression in a dose-dependent manner in macrophages RAW 264.7 stimulated with lipopolysaccharide. Thus, compounds 2 and 3 were found to exhibit a greater activity against contact hypersensitivity than 1.

Topics: Animals; Cyclooxygenase 2 Inhibitors; Dermatitis, Contact; Disease Models, Animal; Dose-Response Relationship, Drug; Ear; Edema; Interleukin-1beta; Interleukin-2; Lipopolysaccharides; Macrophages; Mice; Phenols; Picryl Chloride; Skin; Tumor Necrosis Factor-alpha

The phenolic compounds isoprenylhydroquinone glucoside (IHG), 3,5-dicaffeoylquinic acid (DCA), and its methyl ester (DCE) have previously been shown to inhibit both contact hypersensitivity (CHS) and peroxynitrite reactivity. The present work seeks to establish a relationship between the anti-inflammatory effect and the release of cytokines and tyrosine nitration in skin.. Murine CHS was developed by means of sensitization and challenge with dinitrofluorobenzene (DNFB) or oxazolone. Ear swelling was measured 24 and 96 h after challenge. Interleukin (IL)-1beta, IL-4, and tumour necrosis factor (TNF)-alpha were measured by ELISA; and the expression of inducible nitric oxide synthase (iNOS) was detected by Western blotting. Histological samples were analysed for 3-nitrotyrosine.. In the oxazolone model, DCE reduced the 24 h swelling by 54% whereas the effect of DCA was lower (40% inhibition). All the test compounds reduced IL-1beta values 24 h after challenge with DNFB or oxazolone, DCE particularly inhibited IL-4 production (74% and 78%, respectively; P<0.01). Tyrosine nitration was also markedly reduced by DCE. In general, the test compounds limited the presence of polymorphonuclear (PMN) leukocytes in the skin.. These results suggest that the effect of 3,5-dicaffeoylquinic esters on CHS is associated with a decrease in the production of interleukins, but not with the inhibition of iNOS expression. Moreover, esterification of the carboxyl group at C-1 enhanced protection against tyrosine nitration in the skin.

Topics: Animals; Anti-Inflammatory Agents; Asteraceae; Blotting, Western; Chlorogenic Acid; Dermatitis, Contact; Disease Models, Animal; Enzyme-Linked Immunosorbent Assay; Female; Gene Expression Regulation; Glucosides; Hydroquinones; Interleukin-1beta; Interleukin-4; Mice; Neutrophils; Nitric Oxide Synthase Type II; Random Allocation; Skin; Tumor Necrosis Factor-alpha; Tyrosine