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Angiology
Aging alters vascular reactivity and may lead to diminished cardiac function
June 13th, 2005
Aging alters vascular reactivity and may lead to diminished cardiac function. According to recent research from the United States, "Aging decreases coronary blood flow and maximal reserve capacity. Impaired blood flow capacity may be related to an increased vasoconstrictor capacity of coronary resistance vessels." R.D. Shipley and associates at Texas A&M University reported, "This study tested the hypothesis that aging increases the vasoconstrictor responsiveness of coronary arterioles isolated from myocardium of young (4 months) and old (24 months) Fischer 344 rats. Isolated coronary arterioles were cannulated and pressurized (60 cm H2O) via...
Source: Health & Medicine Week (2005-06-13)
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