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Atherosclerosis. 2008 Nov;201(1):184-91. doi: 10.1016/j.atherosclerosis.2008.01.008. Epub 2008 Mar 17.

Dietary intake of n-3 polyunsaturated fatty acids is inversely associated with CRP levels, especially among male smokers.

Author information

1
Department of Hygiene and Preventive Medicine, School of Medicine, Iwate Medical University, Japan. masakio@iwate-med.ac.jp

Abstract

OBJECTIVE:

To examine whether dietary intake of n-3 polyunsaturated fatty acid (n-3PUFA) is associated with serum C-reactive protein (CRP) levels with regard to smoking status in the Japanese general population in a cross-sectional study.

METHODS AND RESULTS:

A total of 14,191 participants aged 40-69 years were enrolled and divided into quartile groups according to their intake of n-3PUFA. Multivariate-adjusted logarithm-transformed CRP levels were compared between the quartile groups with regard to smoking status after adjusting for traditional risk factors and intake of saturated fatty acids. Adjusted CRP levels were inversely associated with dietary intake of n-3PUFA for both the male subjects and female subjects (p<0.05 for trend). A linear trend was not seen between intake of n-3PUFA and adjusted CRP levels in male nonsmokers. Adjusted CRP level in the lowest quartile group of n-3PUFA was significantly higher than the levels in other groups in male smokers.

CONCLUSION:

Sufficient dietary intake of n-3PUFA may attenuate inflammatory reaction and this effect is more evident among high-risk populations such as male smokers although the small numbers of female ex-smokers and nonsmokers limited statistical power to draw strong conclusions about these groups.

[Indexed for MEDLINE]

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