Bransford T L, St Vrain J A, Webb M
Department of Medicine, Saint Louis University School of Medicine, St Louis, MO, USA.
J Natl Med Assoc. 2001 Apr;93(4):113-9.
In this pilot study, we sought to compare the vasodilatory and hemodynamic properties of the peripheral vasculature in the forearms of young, healthy African-American females to similarly matched white females. We used high-resolution ultrasound of the brachial artery to evaluate 11 African-American females and 8 white females. When normalized to nitrate-induced dilation, endothelium-dependent dilation was reduced in young African American females compared to white females (0.6 in African American females compared to 1.0 in white females). These results indicate the need for a larger study to examine this phenomenon.
在这项初步研究中,我们试图比较年轻、健康的非裔美国女性与匹配的白人女性前臂外周血管的血管舒张和血流动力学特性。我们使用肱动脉高分辨率超声对11名非裔美国女性和8名白人女性进行评估。与硝酸盐诱导的扩张相比,年轻非裔美国女性的内皮依赖性扩张低于白人女性(非裔美国女性为0.6,白人女性为1.0)。这些结果表明需要进行更大规模的研究来检验这一现象。