Rutin administration attenuates myocardial dysfunction in diabetic rats

Area of Science:

• Cardiovascular Research
• Endocrinology
• Pharmacology

Background:

• Oxidative stress is a key factor in diabetic cardiomyopathy.
• Antioxidant therapies are explored for diabetic complications, but their impact on cardiac remodeling is not fully understood.
• This study investigates the effects of rutin, a flavonoid, on cardiac function in diabetic rats.

Purpose of the Study:

• To evaluate the efficacy of rutin in mitigating cardiac and myocardial dysfunction in a rat model of diabetes mellitus.
• To assess the impact of rutin on cardiac remodeling and function in the context of streptozotocin-induced diabetes.

Main Methods:

• Wistar rats were divided into control, control-rutin, diabetes mellitus (DM), and DM-rutin groups.
• Diabetes was induced using streptozotocin. Rutin was administered intraperitoneally weekly for 7 weeks.
• Cardiac function was assessed via echocardiogram and left ventricular papillary muscle analysis; insulin levels were measured by ELISA.

Main Results:

• Diabetic rats showed impaired cardiac function, including reduced fractional shortening and posterior wall shortening velocity.
• Rutin treatment in diabetic rats (DM-R) demonstrated reduced left ventricular mass/body weight and improved septal wall thickness compared to DM rats.
• Papillary muscle studies indicated that rutin partially restored myocardial contractility and relaxation dynamics in diabetic rats.

Conclusions:

• Rutin effectively attenuates cardiac remodeling in streptozotocin-induced diabetes mellitus.
• The flavonoid rutin demonstrates protective effects against left ventricular and myocardial dysfunction in diabetic cardiomyopathy.
• Rutin shows potential as a therapeutic agent for managing diabetic cardiac complications.