Abstract Title:

Effects of Pycnogenol on Cardiometabolic Health: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Abstract Source:

Pharmacol Res. 2019 Oct 1:104472. Epub 2019 Oct 1. PMID: 31585179

Abstract Author(s):

Mahsa Malekahmadi, Safieh Firouzi, Reza Daryabeygi-Khotbehsara, Sheikh Mohammed Shariful Islam, Abdolreza Norouzy, Omid Moradi Moghaddam, Sepideh Soltani

Article Affiliation:

Mahsa Malekahmadi


AIM: Clinical trials on the effect of pycnogenol supplementation on cardiometabolic health have been controversial. We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) to evaluate the potential effect of pycnogenol supplementation on cardiometabolic profile.

METHODS: PubMed, Scopus, and ISI Web of Science databases were searched until October 2018. RCTs that evaluated the effects of pycnogenol on cardiometabolic parameters were included. DerSimonian and Laird random-effect models were used to compute the weighted mean differences (WMDs) and 95% confidence intervals (CIs).

RESULTS: Twenty-four RCTs including 1594 participants were included in the meta-analysis. Pycnogenol significantly reduced fasting blood glucose (WMD: -5.86 mg/dl; 95% CI: -9.56, -2.15), glycated hemoglobin (WMD = -0.29%, 95%CI: -0.56, -0.01), systolic blood pressure (WMD: -2.54 mmhg; 95% CI: -4.08, -0.99), diastolic blood pressure (WMD: -1.76 mmhg; 95% CI: -3.12, -0.41), body mass index (WMD: -0.47 kg/m; 95% CI: -0.90, -0.03), LDL cholesterol (WMD: -7.12 mg/dl; 95% CI: -13.66, -0.58) and increased HDL cholesterol (WMD: 3.27 mg/dl; 95% CI: 0.87, 5.66).

CONCLUSION: This meta-analysis suggests that pycnogenol may have a role in preventing cardiometabolic disease. However, further well-designed RCTs are recommended to evaluate its long-term effects and explore the optimal duration of use and dosage.

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