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Reproductive Sciences
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*NITRIC OXIDE
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Racial Differences in Nitric Oxide—Dependent Vasorelaxation

Eugenia Mata-Greenwood, PhD, PharmD

Department of Reproductive Medicine, University of California, San Diego, ematagreenwood{at}llu.edu

Dong-Bao Chen, PhD

Department of Reproductive Medicine, University of California, San Diego

Along with the growing heterogeneity of the American population, ethnic/racial disparity is becoming a clear health issue in the United States. The awareness of ethnic/racial disparities has been growing because of considerable data gathered from recent clinical and epidemiological studies. These studies have highlighted the importance of addressing these differences in the diagnosis and treatment of various diseases potentially according to race. It is becoming particularly clear that there is a 2- to 3-fold racial difference in certain cardiovascular diseases (eg, preeclampsia) associated with dysfunctional nitric oxide—mediated vasodilation. In this review, the authors summarize the current literature on racial disparities in nitric oxide—mediated vasodilation in relation to cardiovascular health with an emphasis on vascular nitric oxide bioavailability as a balance between production via endothelial nitric oxide synthase and degradation through reactive oxygen species. The major hypotheses postulated on the biological basis of these differences are also highlighted.

Key Words: Race • nitric oxide,endothelial nitric oxide synthase.

Reproductive Sciences, Vol. 15, No. 1, 9-25 (2008)
DOI: 10.1177/1933719107312160
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