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Abstract Title:

Effect of evening primrose oil supplementation on lipid profile: A systematic review and meta-analysis of randomized clinical trials.

Abstract Source:

Phytother Res. 2020 May 22. Epub 2020 May 22. PMID: 32441049

Abstract Author(s):

Masoud Khorshidi, Meysam Zarezadeh, Omid Moradi Moghaddam, Mohammad Reza Emami, Hamed Kord-Varkaneh, Seyed Mohammad Mousavi, Shahab Alizadeh, Javad Heshmati, Beheshteh Olang, Naheed Aryaeian

Article Affiliation:

Masoud Khorshidi

Abstract:

BACKGROUND: Studies have shown that evening primrose oil (EPO) supplementation might be effective in improving lipid profile, however, the results are inconsistent. This study was performed to determine the direction and magnitude of the EPO effect on the lipid profile.

METHODS: PubMed, Scopus, Cochrane Library, Embase and Web of Science databases and Google Scholar were searched up to September-2019. Meta-analysis was performed using the random-effects model. Lipid profile including high-density lipoprotein (HDL), total cholesterol (TC), triglyceride (TG), and low-density lipoprotein (LDL) was considered as the primary outcome.

RESULTS: A total of 926 articles were identified through database searching, of which, six RCTs were included in the meta-analysis. There were six studies on HDL, TC, and TG and four studies on LDL. EPO supplementation had no significant effect on TC, TG, LDL, and HDL. However, in subgroup analysis, a significant reduction in TG at a dose of≤4 g/day (weighted mean difference [WMD] = -37.28 mg/dl; 95% CI: -73.53 to -1.03, p = .044) and a significant increase in HDL in hyperlipidemic subjects (WMD = 5.468 mg/dl; 95% CI: 1.323 to 9.614, p = .010) was found.

CONCLUSION: Oral intake of EPO at a dose of≤4 g/day significantly reduces serum TG levels and significantly increases HDL levels in hyperlipidemic subjects.

Study Type : Meta Analysis, Review

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