Sodium arsenite (NaAsO2), at 10% of its median lethal dose, was administered to rats with and without vitamin C pretreatment. Liver microsomal fraction was isolated and the activity of Ca2+-ATPase was assayed. Sodium arsenite was found to inhibit the activity of the liver microsomal Ca2+-ATPase to 50% to that of control rats. The specific activity of the enzyme in rats administered sodium arsenite with vitamin C pretreatment was not significantly different from that of control rats.
Odunuge, Odutayo O.; Okunade, Gbolahan W.; and Olorunsogo, Olufunso O., "Reversal of Sodium Arsenite Inhibition of Rat Liver Microsomal Ca2+ Pumping ATPase by Vitamin C" (1999). Faculty Publications. Paper 6.
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