Resveratrol Prevents Diabetic Cardiomyopathy by Increasing Nrf2 Expression and Transcriptional Activity

Guan Wang1, Xianjin Song1, Lei Zhao1

  • 1Department of Cardiology, The Second Hospital of Jilin University, Jilin University, Changchun 100032, China.

Abstract

Insights

Resveratrol treatment improved cardiac function and reduced fibrosis in diabetic mice by targeting oxidative stress. This was achieved by increasing Nrf2 expression and activity, offering a potential therapeutic strategy for diabetic cardiomyopathy.

Area of Science:

  • Cardiovascular Research
  • Metabolic Disorders
  • Pharmacology

Background:

  • Diabetic cardiomyopathy is a significant complication of diabetes mellitus.
  • Oxidative stress plays a critical role in the pathogenesis of diabetic cardiomyopathy.
  • Resveratrol, a natural polyphenol, has demonstrated antioxidant properties.

Purpose of the Study:

  • To investigate the protective effects of resveratrol against diabetic cardiomyopathy in a mouse model.
  • To elucidate the underlying mechanisms, particularly the role of oxidative stress and Nrf2 signaling.

Main Methods:

  • Type 1 diabetes mellitus was induced in FVB mice using streptozotocin.
  • Mice were treated with resveratrol (10 mg/kg/day) for one month and monitored for six months.
  • Cardiac function, blood pressure, oxidative damage, and fibrosis were assessed using various techniques including histopathology, PCR, and Western blot.

Main Results:

  • Diabetic mice exhibited cardiac dysfunction, hypertrophy, high blood pressure, and increased oxidative damage.
  • Resveratrol treatment attenuated cardiac dysfunction, hypertrophy, and fibrosis in diabetic mice.
  • Resveratrol mitigated oxidative stress markers and increased Nrf2 expression and transcriptional activity.

Conclusions:

  • Resveratrol effectively prevents and ameliorates diabetic cardiomyopathy in mice.
  • The cardioprotective effects of resveratrol are partly mediated by enhancing Nrf2-dependent antioxidant pathways.
  • Resveratrol represents a promising therapeutic agent for diabetic cardiomyopathy.

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