Reduced endothelium-dependent and -independent dilation of conductance arteries in African Americans
Umberto Campia, MD*,
Wassim K. Choucair, MD*,
Melissa B. Bryant, RN*,
Myron A. Waclawiw, PhD ,
Carmine Cardillo, MD*,1 and
Julio A. Panza, MD, FACC*,*
* Cardiology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
Office of Biostatistics Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
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Figure 1 Bar graph showing a comparison of flow-mediated dilation (left panel) and nitroglycerin (NTG)-mediated dilation (right panel) between African Americans (black bars) and whites (hatched bars). The p values represent the results of unpaired Student t test. Values represent mean ± SEM.
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Figure 2 Scatterplot showing the relationship between flow-mediated dilation (FMD) (left panel) and nitroglycerin-mediated dilation (NMD) (right panel) in African Americans (closed circles and lower regression lines) and whites (open circles and upper regression lines). BMI = body mass index.
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Figure 3 Bar graph showing a comparison of flow-mediated dilation (left panel) and nitroglycerin-mediated dilation (right panel) between African American men and women (black bars) and white men and women (hatched bars). The p values represent the results of unpaired Student t test. Values represent mean ± SEM.
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