Resveratrol improves cardiovascular function in DOCA-salt hypertensive rats

Area of Science:

• Cardiovascular Science
• Pharmacology
• Nutraceuticals

Background:

• Hypertension is a major risk factor for cardiovascular disease.
• Cardiac fibrosis and impaired cardiovascular function are key pathological features of hypertension.
• Resveratrol, a natural polyphenol, has demonstrated potential cardioprotective effects.

Purpose of the Study:

• To investigate the efficacy of resveratrol in preventing cardiac fibrosis and dysfunction in a DOCA-salt induced rat model of hypertension.
• To evaluate the impact of resveratrol on cardiovascular remodeling and function.

Main Methods:

• Uninephrectomized rats were treated with deoxycorticosterone acetate (DOCA) and salt to induce hypertension and cardiovascular remodeling.
• Resveratrol (1 mg/kg/day orally) was administered to DOCA-salt rats.
• Cardiac fibrosis, cardiovascular function, blood pressure, and cardiac structural changes were assessed.

Main Results:

• Resveratrol treatment significantly decreased inflammatory cell infiltration and cardiac fibrosis (collagen content) in DOCA-salt rats.
• Resveratrol improved cardiac and vascular function, attenuating increases in systolic blood pressure, left ventricular weight, and wall thickness.
• The compound also mitigated diastolic stiffness and improved cardiac contractility.

Conclusions:

• Resveratrol, at a nutritionally relevant dose, effectively prevents or attenuates adverse cardiovascular changes in a rat model of hypertension.
• The anti-inflammatory and anti-fibrotic properties of resveratrol are likely responsible for its protective effects.
• These findings support a potential role for resveratrol in protecting the human cardiovascular system.