Abstract Title:

Myricetin may provide protection against oxidative stress in type 2 diabetic erythrocytes.

Abstract Source:

Z Naturforsch C. 2009 Sep-Oct;64(9-10):626-30. PMID: 19957428

Abstract Author(s):

Kanti Bhooshan Pandey, Neetu Mishra, Syed Ibrahim Rizvi

Article Affiliation:

Kanti Bhooshan Pandey


Oxidative stress is believed to be a major contributing factor in the development of late complications of diabetes. Many in vitro and in vivo studies have demonstrated that several parameters of red blood cell function and integrity are negatively affected by increased oxidative stress. Plant polyphenols are reported to exert many biological effects due to their antioxidant property. The present study was undertaken to evaluate the antioxidant effect of myricetin on markers of oxidative stress in erythrocytes from type 2 diabetic patients. The study was carried out on blood samples obtained from 23 type 2 diabetic patients and 23 age-matched control subjects. Erythrocytes were subjected to in vitro oxidative stress by incubating with 10(-5) M tert-butyl hydroperoxide (t-BHP). Erythrocyte membrane lipid peroxidation and protein oxidation were measured in terms of malondialdehyde (MDA) and protein carbonyl group levels. The results showed an elevated MDA and protein carbonyl content in diabetic erythrocytes which were further increased after incubation with t-BHP. Myricetin at micromolar concentration significantly (p<0.01) protected an t-BHP-induced increase in levels of oxidative stress parameters of diabetic erythrocytes.

Study Type : Human In Vitro, Human Study

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