Journal
LIFE-BASEL
Volume 12, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/life12081146
Keywords
quercetin; diabetes; inflammatory markers; medicinal plants; insulin
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Diabetes Mellitus is a metabolic disorder that is spreading rapidly worldwide. Quercetin, a flavonoid, has therapeutic potential in the management of Type-2 DM, as it improves pancreatic beta-cell function, inhibits inflammation, and shows antidiabetic effects.
Diabetes Mellitus (DM) is a metabolic disorder that is spreading alarmingly around the globe. Type-2 DM (T2DM) is characterized by low-grade inflammation and insulin resistance and is closely linked to obesity. T2DM is mainly controlled by lifestyle/dietary changes and oral antidiabetic drugs but requires insulin in severe cases. Many of the drugs that are currently used to treat DM are costly and present adverse side effects. Several cellular, animal, and clinical studies have provided compelling evidence that flavonoids have therapeutic potential in the management of diabetes and its complications. Quercetin is a flavonoid, present in various natural sources, which has demonstrated in vitro and in vivo antidiabetic properties. It improves oral glucose tolerance, as well as pancreatic beta-cell function to secrete insulin. It inhibits the alpha-glucosidase and DPP-IV enzymes, which prolong the half-life of glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP). Quercetin also suppresses the release of pro-inflammatory markers such as IL-1 beta, IL-4, IL-6, and TNF-alpha. Further studies are warranted to elucidate the mode(s) of action of quercetin at the molecular level. This review demonstrates the therapeutic potential of quercetin in the management of T2DM.
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