[Effect of diet on transport ATPase activity in myocardial and liver membranes]

Distinct impairments were found in membranes of rat myocardium and liver tissue in animals kept on food, which was deficient in retinol, tocopherol, ascorbic acid and essential amino acids lysine, methionine and threonine. Deficiency in these dietary components led to a decrease in content of phosphatidyl ethanolamine and phosphatidyl serine and in activity of total ATPase and Ca2+-ATPase in membranes of myocardial sarcoplasmic reticulum as well as to decrease Na+, K+-ATPase activity in liver plasmatic membrane.