Angiotensin II type 2 receptor-mediated vasodilation in human coronary microarteries.


BACKGROUND Angiotensin (Ang) II type 2 (AT2) receptor stimulation results in coronary vasodilation in the rat heart. In contrast, AT2 receptor-mediated vasodilation could not be observed in large human coronary arteries. We studied Ang II-induced vasodilation of human coronary microarteries (HCMAs). METHODS AND RESULTS HCMAs (diameter, 160 to 500 microm… (More)

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