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Accumulation of Ca ions in intracellular structures of rat myometrium during subacute, acute, and chronic administration of ethanol
Authors:Borisova L A  Babich L G  Shlykov S G  Kosterin S A
Institution:A. V. Palladin Institute of Biochemistry, NAS of Ukraine, Kyiv.
Abstract:The effects of subacute, acute and chronic ethanol exposure on the activity of Ca(2+)-accumulating systems of mitochondria and endoplasmic reticulum in myometrial cells of nonpregnant estrogen-treated rats were studied. It has been shown that the activity of Ca(2+)-accumulating system of mitochondria was higher than the activity of Ca(2+)-accumulating system of endoplasmic reticulum in myometrial cells from control, acute and subacute treated with ethanol rats. Under ethanol chronical assumption both Ca(2+)-accumulation in mitochondria and Ca(2+)-transporting activity of endoplasmic reticulum are inhibited. In the latter ease Mg2+, ATP-dependent Ca(2+)-pump lost its sensitivity to oxytocin.
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