A red yeast rice-olive extract supplement reduces biomarkers of oxidative stress, OxLDL and Lp-PLA2, in subjects with metabolic syndrome.
A red yeast rice-olive extract supplement reduces biomarkers of oxidative stress, OxLDL and Lp-PLA, in subjects with metabolic syndrome: a randomised, double-blind, placebo-controlled trial.
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Abstract
BACKGROUND: Metabolic syndrome (MetS) refers to clustered cardiovascular risk factors (abdominal obesity, pre-diabetes, high blood pressure, dyslipidaemia). Therapies targeting oxidative stress may delay progression to atherosclerosis and diabetes. We investigated the anti-oxidative effect of a supplement combining red yeast rice and olive extract in patients with MetS. METHODS: A double-blind, placebo-controlled, randomised trial was conducted with 50 patients with MetS as defined by National Cholesterol Education Program Adult Treatment Panel III criteria. Forty-nine subjects randomly assigned to red yeast rice-olive extract (RYR-olive extract; 10.82 mg of monacolins and 9.32 mg of hydroxytyrosol per Cholesfytolplus capsule) or placebo completed the 8-week trial. Whereas effects on cardiovascular risk parameters of MetS have been reported recently, the observed significant 20% increase in oxidised low-density lipoprotein (OxLDL) prompted us to investigate other oxidative stress-related parameters: malondialdehyde (MDA), lipoprotein-associated phospholipase A(Lp-PLA) and 8-hydroxy-2'-deoxyguanosine (8-OHdG). Statistical calculations included univariate quantitative analysis, multivariate linear regression and correlation analysis. RESULTS: The updated results indicate that an RYR-olive extract supplement significantly reduced Lp-PLAby 7% (p 0.05). Reductions in OxLDL (20%) and Lp-PLA(7%) were associated with each other (r = 0.740, p
Affiliation
Nina Hermans
External References
- PubMed ID:
- 28673363
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