alpha-adrenergic coronary vasoconstriction and myocardial ischemia in humans.
alpha-adrenergic coronary vasoconstriction and myocardial ischemia in humans.
复制标题
人类的α-肾上腺素能冠状血管收缩和心肌缺血。
作者:
G. Heusch;D. Baumgart;P. Camici;W. Chilian;L. Gregorini;O. Hess;C. Indolfi;O. Rimoldi
The use of quantitative coronary angiography, combined with Doppler and PET, has recently been directed at the study of alpha-adrenergic coronary vasomotion in humans. Confirming prior animal experiments, there is no evidence of alpha-adrenergic coronary constrictor tone at rest. Again confirming prior experiments, responses to alpha-adrenoceptor activation are augmented in the presence of coronary endothelial dysfunction and atherosclerosis, involving both alpha(1)- and alpha(2)-adrenoceptors in epicardial conduit arteries and microvessels. Such augmented alpha-adrenergic coronary constriction is observed during exercise and coronary interventions, and it is powerful enough to induce myocardial ischemia and limit myocardial function. Recent studies indicate a genetic determination of alpha(2)-adrenergic coronary constriction.
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影响因子:
20.1
作者:
Chilian,WM;Layne,SM;Eastham,CL;Marcus,ML
通讯作者:
Marcus,ML
影响因子:
24
作者:
Robertson,RM;Bernard,YD;Carr,RK;Robertson,D
通讯作者:
Robertson,D
影响因子:
37.8
作者:
Winniford,MD;Wheelan,KR;Kremers,MS;Ugolini,V;vandenBergJr,E;Niggemann,EH;Jansen,DE;Hillis,LD
通讯作者:
Hillis,LD
影响因子:
37.8
作者:
HODGSON, JM;COHEN, MD;THAMES, MD
通讯作者:
THAMES, MD