Effect of Resveratrol on Endothelial Function in Patients with CKD and Diabetes: A Randomized Controlled Trial

Colin J Gimblet1, Nicholas T Kruse2, Katharine Geasland3

  • 1Department of Health and Human Physiology, The University of Iowa, Iowa City, Iowa.

Insights

Resveratrol supplementation improved endothelial function in patients with chronic kidney disease (CKD) and diabetes. This finding suggests a potential benefit for cardiovascular health in this high-risk population.

Area of Science:

  • Cardiovascular Research
  • Nephrology
  • Endocrinology

Background:

  • Patients with chronic kidney disease (CKD) and diabetes face elevated cardiovascular disease (CVD) risk due to impaired endothelial function.
  • Resveratrol, a cardioprotective compound, may enhance endothelial function and reduce CVD burden in this population.

Purpose of the Study:

  • To investigate the effects of resveratrol supplementation on endothelial function in patients with stage 3 CKD and diabetes.

Main Methods:

  • A randomized, double-blind, placebo-controlled, crossover study involving 28 adults (84% men, aged 68±7 years) with stage 3 CKD and diabetes.
  • Participants received 400 mg/d of resveratrol or placebo for 6 weeks.
  • Endothelial function was assessed using brachial artery flow-mediated dilation (FMD).

Main Results:

  • Resveratrol supplementation significantly increased flow-mediated dilation compared to placebo (ratio of geometric mean changes: 1.43; 95% CI: 1.15 to 1.77; P=0.001).
  • No significant changes were observed in estimated glomerular filtration rate (eGFR), hemoglobin A1c, blood pressure, or nitroglycerin-mediated dilation.
  • The improvement in FMD appeared independent of changes in traditional cardiovascular risk factors.

Conclusions:

  • Resveratrol supplementation effectively improved endothelial function in individuals with both CKD and diabetes.
  • These findings highlight resveratrol's potential as a therapeutic agent to mitigate cardiovascular risk in this vulnerable patient group.
Abstract

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