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American Journal of Clinical Nutrition 2005-May

Plasma lycopene, other carotenoids, and retinol and the risk of cardiovascular disease in men.

Només els usuaris registrats poden traduir articles
Inicieu sessió / registreu-vos
L'enllaç es desa al porta-retalls
Howard D Sesso
Julie E Buring
Edward P Norkus
J Michael Gaziano

Paraules clau

Resum

BACKGROUND

Emerging evidence suggests a possible role of lycopene in the primary prevention of cardiovascular disease (CVD).

OBJECTIVE

We examined whether plasma lycopene concentrations in the Physicians' Health Study were associated with CVD in a prospective, nested, case-control design.

METHODS

Baseline blood samples were collected starting in 1996. During a mean follow-up of 2.1 y, we identified 499 cases of CVD (confirmed myocardial infarction, stroke, CVD death, or revascularization procedures) and an equal number of men free of CVD and matched for age (x: 69.7 y), follow-up time, and smoking status. We collected self-reported coronary disease risk factors and measured plasma carotenoids, retinol, lipids, and C-reactive protein.

RESULTS

In matched analyses with additional adjustment for plasma total cholesterol and randomized treatment, the relative risks (RRs) of CVD for men in the lowest to highest quartiles of plasma lycopene were 1.00 (reference), 0.92, 1.04, and 0.95 (P for linear trend = 0.93). With multivariate adjustment, the RRs of total CVD were 1.00 (reference), 1.08, 0.94, and 1.03 (P for linear trend = 0.98). For important vascular events (241 cases), excluding revascularization procedures, the multivariate RRs remained nonsignificant (P for linear trend = 0.50). Adding plasma carotenoids, lipids, or C-reactive protein to multivariate models had a minimal effect on the RRs of total CVD for plasma lycopene. Compared with lycopene, higher concentrations of plasma lutein/zeaxanthin and retinol suggested a moderate increase in CVD risk, whereas no association was found for beta-cryptoxanthin, alpha-carotene, and beta-carotene.

CONCLUSIONS

Higher plasma lycopene concentrations were not associated with the risk of CVD in this study of older men. Further evaluation in diverse populations is necessary.

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