1989•中国人民解放军军医大学学报：英文版Requires access
The Limiting Effect of α-adrenergic Vasoconstriction on Canine Coronary Vasodilation Induced by Adenosine
孙建中, 李之源, 王跃民, 臧益民, 王复周
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Abstract
-adrenergicreceptors in the myocardium.Intracoronary adenosine at increasing doses produced graded decreasesin coronary vascular resistance by 8.7%（2μg/min）,20.6%（10/μg/min）and 28%（50 μg/min）of the control.Identical doses（6μg）of intracoronary norepinephfine produced increases in coronaryvascular resistance by 17.4%（adenosine 2 μg/min）,23.2%（adenosine 10μg/min）and 34.1%（adenosine 50 μg/min）of the control when coronary vessels were dilated by increasing doses ofadenosine,respectively.It is suggested that the constrictive effect of x-adrenergic stimulalion can ex-ert a limiting effect on adenosine-induced coronary vasodilation.