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Updated: Feb 11, 2026

Modeling and Evaluation of Murine Diabetic Cardiomyopathy Model
Published on: November 29, 2024
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.
Objective:
This study investigated if resveratrol ameliorates diabetic cardiomyopathy by targeting associated oxidative stress mechanisms.
Method:
Type 1 diabetes mellitus (DM) in FVB mice was induced by several intraperitoneal injections of a low dose of streptozotocin. Hyperglycemic and age-matched control mice were given resveratrol (10 mg/kg per day) for 1 month and subsequently monitored for an additional 6 months. Mice were assigned to four groups: control, resveratrol, DM, and DM/resveratrol. Cardiac function and blood pressure were assessed at 1, 3, and 6 months after DM induction. Oxidative damage and cardiac fibrosis were analyzed by histopathology, real-time PCR, and Western blot.
Result:
Mice in the DM group exhibited increased blood glucose levels, cardiac dysfunction, and high blood pressure at 1, 3, and 6 months after DM induction. Resveratrol did not significantly affect blood glucose levels and blood pressure; however, resveratrol attenuated cardiac dysfunction and hypertrophy in DM mice. Resveratrol also reduced DM-induced fibrosis. In addition, DM mice hearts exhibited increased oxidative damage, as evidenced by elevated accumulation of 3-nitrotyrosine and 4-hydroxynonenal, which were both attenuated by resveratrol. Mechanistically, resveratrol increased NFE2-related factor 2 (Nrf2) expression and transcriptional activity, as well as Nrf2's downstream antioxidative targets.
Conclusion:
We demonstrated that resveratrol prevents DM-induced cardiomyopathy, in part, by increasing Nrf2 expression and transcriptional activity.
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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