[Regulation of glucose-6-phosphate dehydrogenase activity of the rat liver in vitamin B1 deficiency].

Kinetic patterns and thermostability of glucose-6-phosphate dehydrogenase, isolated from liver tissue of intact and thiamine-deficient rats, were analyzed. Distinct alterations were not found in the patterns studied. The data obtained suggest that a decrease in the enzymatic activity, observed after administration of oxythiamine into rats, occurred due to lowering in content of the protein active form.