RESUMO
OBJECTIVE: Hypertension is an important risk factor that causes many deaths in the world every year. Researchers continue to undertake studies to find an effective drug for reducing blood pressure. One of the phytochemicals that recently attracted the attention of researchers is resveratrol-polyphenol, found in grapes. The purpose of this systematic review is to investigate the effect of resveratrol as a cardioprotective agent effective in reducing hypertension in patients with hypertension. METHODS: Studies and clinical articles from databases Scopus, Pubmed, Ovid and Cochrane have been collected until September 2017; the keywords are Blood Pressure, Hypertension, Hypertensive, Cardiovascular, and Resveratrol. RESULTS: Data from five studies with a total of 229 hypertensive and pre-hypertensive patients (men and women) showed that resveratrol plays an important role in reducing blood pressure. CONCLUSION: Resveratrol appears to have anti-hypertensive effects, depending on the dose and duration of treatment. Researchers attribute one of the important blood pressure reducing mechanisms of resveratrol to increasing levels of NO. Based on the results of this systematic review, it is suggested that more clinical studies be conducted to find the appropriate dose and duration of treatment.
