Long-term low dose dietary resveratrol supplement reduces cardiovascular structural and functional deterioration in chronic heart failure in rats

Ismayil Ahmet, Hyun Jin Tae, Edward G. Lakatta, Mark Talan

Research output: Contribution to journalArticlepeer-review

Abstract

A short-term exposure to resveratrol at high dosages exerts a remarkable cardioprotective effect. Whether a long-term exposure to resveratrol at low dosages that can be obtained through consumption of a resveratrol-rich diet is beneficial to heart diseases is unknown. We tested the effects of a resveratrol-enriched diet on cardiovascular remodeling of chronic heart failure (CHF) in rats resulting from permanent ligation of left coronary artery. Two weeks after surgery, rats were started on either a resveratrol-enriched (R; 5 mg/kg per day; n = 23) or normal (Control; n = 23) diet for next 10 months. Serial echocardiography in Control showed a significant decline in LV ejection fraction, increases in LV end-systolic and end-diastolic volumes, and expansion in myocardial infarct from pre-treatment values. In R, compared with Control, there were substantial improvements in those parameters. End-point LV pressure-volume loop analysis showed a significantly improved LV systolic function and AV-coupling, an index of energy transfer efficacy between the heart and aortic tree, in R compared with Control (p < 0.05). Aortic pulse wave velocity, a measure of arterial stiffness, was significantly lower in R (389 ± 15 cm/s; p < 0.05) compared with Control (489 ± 38 cm/s). These results demonstrated that long-term dietary resveratrol supplement reduces cardiovascular structural and functional deterioration in CHF.

Original languageEnglish (US)
Pages (from-to)268-274
Number of pages7
JournalCanadian Journal of Physiology and Pharmacology
Volume95
Issue number3
DOIs
StatePublished - 2016
Externally publishedYes

Keywords

  • Echocardiography
  • Heart failure
  • Pulse wave velocity
  • Remodeling
  • Resveratrol

ASJC Scopus subject areas

  • Physiology
  • Pharmacology
  • Physiology (medical)

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