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Anti-inflammatory and cardioprotective effects of n-3 polyunsaturated fatty acids and plant sterols in hyperlipidemic individuals.

Abstract：

BACKGROUND:Risk factors of cardiovascular disease such as lipid aberrations, hypertension, abdominal adiposity and elevations in systemic inflammation, are prominent aetiologies in hyperlipidemia. Supplementation with n-3 PUFA is associated with a reduction in cardiovascular events through its hypotriglyceridemic, anti-aggregatory and anti-inflammatory properties. Plant sterols have potent hypocholesterolemic properties, although their effect on the inflammatory cascade is uncertain. This study investigated the effect of combined supplementation with n-3 PUFA and plant sterols on cardiovascular risk factors, blood pressure, body composition, markers of systemic inflammation and overall risk, in hyperlipidemic individuals. METHODS:The study was a 3-week randomised, double-blind, placebo-controlled, 2 x 2 factorial design, in four parallel groups. Sixty hyperlipidemic participants were randomised to receive either sunola oil or 1.4 g/d n-3 PUFA capsules with or without 2g plant sterols per day. RESULTS:The combination of n-3 PUFA and plant sterols reduced several inflammatory markers. High sensitivity C-reactive protein (hs-CRP) was reduced by 39% (P=0.009), tumor necrosis factor-alpha (TNF-alpha) by 10% (P=0.02), interleukin-6 (IL-6) by 10.7% (P=0.009), leukotriene B(4) (LTB(4)) by 29.5% (P=0.01) and adiponectin was increased by 29.5% (P=0.05). Overall cardiovascular risk was reduced by 22.6% (P=0.006) in the combination group. CONCLUSION:We have demonstrated, for the first time that dietary intervention with n-3 PUFA and plant sterols reduces systemic inflammation in hyperlipidemic individuals. Furthermore, our results suggest that reducing inflammation provides a potential mechanism by which the combination of n-3 PUFA and plant sterols are cardioprotective.

journal_name

Atherosclerosis

journal_title

Atherosclerosis

authors

Micallef MA,Garg ML

doi

10.1016/j.atherosclerosis.2008.09.020

subject

Has Abstract

pub_date

2009-06-01 00:00:00

pages

476-82

issue

2

eissn

0021-9150

issn

1879-1484

pii

S0021-9150(08)00676-X

journal_volume

204

pub_type

杂志文章,随机对照试验

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