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Arterioscler Thromb Vasc Biol. 2008 May;28(5):961-7. doi: 10.1161/ATVBAHA.107.156596. Epub 2008 Feb 21.

Asymmetric dimethylarginine independently predicts fatal and nonfatal myocardial infarction and stroke in women: 24-year follow-up of the population study of women in Gothenburg.

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  • 1Department of Cardiology, Adelaide & Meath Hospital, Tallaght, Dublin 24, Ireland.

Abstract

OBJECTIVE:

Asymmetrical dimethylarginine (ADMA) reduces nitric oxide by inhibiting nitric oxide synthase is associated with cardiovascular disease (CVD). Our study examined the association of ADMA with CVD prospectively in a healthy population-based cohort of women.

METHODS AND RESULTS:

We measured baseline ADMA of 880 women in the Population Study of Women in Gothenburg using high-performance liquid chromatography. After adjustment for traditional risk factors, creatinine clearance, and homocysteine using Cox models, the HR (95% CI in parentheses) of CVD end points at 24 years for a 0.15 micromol/L (1 SD) increase in ADMA were: all-cause mortality 1.12 (0.96, 1.32), fatal CVD 1.30 (1.04, 1.62), total CVD events 1.29 (1.09, 1.53). The top quintile (ADMA >or=0.71 micromol/L) compared with the bottom four-fifths, conferred a cumulative risk 22 versus 14%, relative risk 1.75 (95% CI 1.18, 2.59) and population attributable risk 12.7% of total CVD events, and further identified individuals who are at higher than expected risk based on the SCORE and Framingham systems.

CONCLUSIONS:

A 0.15 mumol/L increase in baseline ADMA levels is associated with approximately 30% increase in incident cardiovascular risk at 24 years in women after adjustment. ADMA levels >or=0.71 micromol/L enhances CVD risk assessment in women.

PMID:
18292394
[PubMed - indexed for MEDLINE]
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