tannins has been researched along with Insulin-Resistance* in 5 studies
1 trial(s) available for tannins and Insulin-Resistance
4 other study(ies) available for tannins and Insulin-Resistance
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Corni Fructus as a Natural Resource Can Treat Type 2 Diabetes by Regulating Gut Microbiota.
Accumulating evidence suggests that gut microbiota plays a crucial role in the development of metabolic diseases, especially type 2 diabetes mellitus (T2DM). The nutrient-rich resource Cornus Fructus (CF) showed curative effects on diabetes mellitus. However, the mechanism underlying its hyperglycemic activity remains obscure. Herein, the antidiabetic potential of four extracts from CF, including saponin (CTS), iridoid glycoside (CIG), tannin (CT), and alcohol extract (CCA) was evaluated Topics: Animals; Blood Glucose; Body Weight; Cornus; Diabetes Mellitus, Type 2; Disease Models, Animal; Functional Food; Gastrointestinal Microbiome; Insulin Resistance; Iridoid Glycosides; Lipid Metabolism; Male; Mice, Inbred ICR; Phytotherapy; Plant Extracts; Saponins; Tannins | 2020 |
Antidiabetic and antioxidant effects of tannic acid and melatonin on streptozotocin induced diabetes in rats.
The present investigation aimed to study the possible antidiabetic and related antioxidant potentials of tannic acid and melatonin in streptozotocin (STZ) induced diabetes in rats. Four groups of rats received intraperitoneal one dose of 50mg/kg body weight STZ for the induction of diabetes. The first group served as diabetic control group and received the vehicle. Four days after induction of diabetes, the remaining three groups received glibenclamide (6mg/kg/day), tannic acid (1 g/kg/day) and melatonin (10 mg/kg/day) for two weeks. A fifth group served as vehicle control group. At the end of the experimental period, blood samples and liver samples were collected for the determination of diabetes correlated biomarkers. Treatment of diabetic rats with tannic acid or melatonin attenuated most of the changes associated with STZ induced diabetes. The present results evidenced the beneficial effects of tannic acid and melatonin in diabetes management. Topics: Animals; Antioxidants; Blood Glucose; Diabetes Mellitus, Experimental; Diabetic Nephropathies; Glycogen; Hypoglycemic Agents; Insulin; Insulin Resistance; Insulin-Secreting Cells; Kidney Function Tests; Lipid Metabolism; Liver; Male; Melatonin; Rats, Wistar; Tannins | 2019 |
Comparative study on the effects of apple peel polyphenols and apple flesh polyphenols on cardiovascular risk factors in mice.
Apple consumption has been demonstrated to be associated with reduced risk of cardiovascular disease, and the beneficial effect is probably due to the polyphenols in apple. Here, we for the first time evaluated and compared the in vivo effects of the polyphenolic extracts of apple peels (PAP) and apple fleshes (PAF) on blood pressure, vascular endothelial function, lipid metabolism and insulin resistance. A high-fat and high-fructose (HFHF) diet was used to cause cardiovascular disorders in mice, with blood pressure, serum ET-1, TC, TG, LDL-C, glucose and insulin levels increased, and serum NO and HDL-C levels decreased. Mice administered with 250 mg/kg of PAP and PAF for 28 days showed lower blood pressure, improved endothelial function, ameliorated lipid homeostasis and decreased insulin resistance compared with HFHF-fed mice. Furthermore, PAP exhibited much more potent cardioprotective effects than PAF in mice. Quantification and phenolic profile analysis showed that PAP contained remarkably higher amount of total phenolics and total flavonoids than PAF, and this may be the reason for the relatively stronger efficacy of PAP. This study demonstrates that apple polyphenols possess potential cardioprotective effects, and suggests that apple, especially apple peel, may be excellent source for exploration of preventive agents against cardiovascular disorders. Topics: Animals; Blood Pressure; Cardiovascular Diseases; Chlorogenic Acid; Diet; Endothelium, Vascular; Flavonoids; Insulin Resistance; Lipid Metabolism; Male; Mice; Phenols; Protective Factors; Risk Factors; Tannins | 2018 |
Cranberry extract attenuates hepatic inflammation in high-fat-fed obese mice.
Cranberry (Vaccinium macrocarpon) consumption has been associated with health beneficial effects. Nonalcoholic fatty liver disease (NAFLD) is a comorbidity of obesity. In the present study, we investigated the effect of a polyphenol-rich cranberry extract (CBE) on hepatic inflammation in high fat (HF)-fed obese C57BL/6J mice. Following dietary treatment with 0.8% CBE for 10 weeks, we observed no change in body weight or visceral fat mass in CBE-supplemented mice compared to HF-fed control mice. We did observe a significant decrease in plasma alanine aminotransferase (31%) and histological severity of NAFLD (33% decrease in area of involvement, 29% decrease in lipid droplet size) compared to HF-fed controls. Hepatic protein levels of tumor necrosis factor α and C-C chemokine ligand 2 were reduced by 28% and 19%, respectively, following CBE supplementation. CBE significantly decreased hepatic mRNA levels of toll-like receptor 4 (TLR4, 63%) and nuclear factor κB (NFκB, 24%), as well as a number of genes related to the nucleotide-binding domain, leucine-rich-containing family, pyrin domain-containing 3 inflammasome. In conclusion, CBE reduced NAFLD and hepatic inflammation in HF-fed obese C57BL/6J mice. These effects appear to be related to mitigation of TLR4-NFκB related signaling; however, further studies into the underlying mechanisms of these hepatoprotective effects are needed. Topics: Animals; Anthocyanins; Anti-Inflammatory Agents, Non-Steroidal; Biomarkers; Diet, High-Fat; Dietary Supplements; Dyslipidemias; Fruit; Gene Expression Regulation; Inflammasomes; Insulin Resistance; Lipid Droplets; Liver; Male; Mice, Inbred C57BL; Non-alcoholic Fatty Liver Disease; Obesity; Plant Extracts; Polyphenols; Random Allocation; Tannins; Vaccinium macrocarpon | 2016 |