Ca(2+) movement from leaky sarcoplasmic reticulum during contraction of rat arterial smooth muscles.

Abstract

To examine the Ca(2+) buffering function of the sarcoplasmic reticulum during arterial contraction, we studied Ca(2+) movement during stimulation with K(+) or norepinephrine in arteries with a leaky sarcoplasmic reticulum. Responses were compared in endothelium-denuded strips of femoral, mesenteric and carotid arteries of the rat. To make the sarcoplasmic… (More)

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