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Clin Nutr. 2009 Oct;28(5):510-5. doi: 10.1016/j.clnu.2009.04.016. Epub 2009 May 28.

The effect of the plasma n-3/n-6 polyunsaturated fatty acid ratio on the dietary LDL phenotype transformation - insights from the LIPGENE study.

Author information

1
Dept. Clinical Biochemistry, Jagiellonian University School of Medicine, Krakow, Poland. mbhartwi@cyf-kr.edu.pl

Abstract

BACKGROUND & AIMS:

LDL phenotype B is associated with obesity, insulin resistance, hypertriglyceridemia and oxidative stress. The effect of plasma n-3/n-6 PUFA ratio on LDL phenotype transformation was investigated.

METHODS:

Patients with metabolic syndrome (n=99) received one of four isocaloric diets: (A) High-fat (38% energy) SFA-rich diet (HSFA); (B) High-fat (38% energy), MUFA-rich diet (HMUFA); (C), low-fat (LF) (28% energy), high-complex carbohydrate diet with 1.24g/d oleic sunflower oil (LFHCC) and (D): low-fat (28% energy), high-complex carbohydrate diet, with 1.24g/d LC n-3 PUFA (LFHCC n-3) for 12 weeks. Analysis of plasma lipid profile and LDL phenotype was done pre- and post-interventions.

RESULTS:

Post-dietary change of LDL density was a main effect observed in all groups. LFHCC n-3 and HFMUFA diets resulted in favorable alteration of LDL phenotype from B to A and decreased LDL density. In contrast, increased LDL density was observed in HSFA and LFHCC groups. The plasma pre-n3/n6 PUFA, Apo E change and pre-Apo CIII/CII ratios explained in 65% the post-dietary change of LDL density in diet LFHCC n-3 consumers.

CONCLUSIONS:

Study demonstrates efficacy of dietary n-3 PUFA to modify pro-atherogenic to less atherogenic LDL phenotype in patients with metabolic syndrome. Study identifier at ClinicalTrials.gov was NCT00429195.

PMID:
19481310
DOI:
10.1016/j.clnu.2009.04.016
[Indexed for MEDLINE]

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