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PubMedDate not supplied

[Activity of enzymes of pentosephosphate pathway in the erythrocytes, myocardium and intercostal muscle of patients with mitral valve stenosis].

Decrease in activities of glucose-6-phosphate dehydrogenase and transketolase was observed in erythrocytes of patients with mitral stenosis. Development of the disease was accompanied by a further decrease in the enzymatic activity. The activity of the enzymes was increased in myocardium of atrium sinistrum at the IV stadium as compared with the III stadium of the disease. The glucose-6-phosphate dehydrogenase activity was decreased and the transketolase activity was unaltered in intercostal muscle of the patients.

Erythrocytes↗
PubMedDate not supplied

[Enzymatic activity of the pentosephosphate pathway of carbohydrate conversion in the experimental therapy of dermatitis in rats].

An increase in the activity of 6-phosphogluconate dehydrogenase, transketolase, ribose-5-phosphatase and intensive conversion of glucose in pentosophosphate pathway in erythrocytes were observed in experimental rat contact dermatitis. Ultrasonic therapy was used (0.2 w/cm2 at impulse regimen of generator) for prevention and treatment of the dermatitis. Treatment of the dermatitis by ultraphonophoresis of sinalar was shown to be a suitable method, which caused the normalization of biochemical and structural processes in skin.

Animals↗
PubMedDate not supplied

[Effect of estradiol dipropionate and its combination with insulin on pentosephosphate dehydrogenase cycle activity in the liver and the uterus].

Experimental investigations have shown estradiol-dipropionate and insulin to induce an elevated activity of glucose-6-phosphate- and 6-phospho-gluconate-dehydrogenase in the uterus and the liver. Insulin potentiates the inducing action of estradiol on the pentosophosphate cycle dehydrogenases when both of them are used concurrently. For insulin to display its inducing effect a definite level of endogenous estradiol in the organism is necessary, for insulin fails to exert a specific influence on the study of dehydrogenases in sexually immature and ovariectomized animals.

Animals↗
PubMedDate not supplied

[Enzymes of glycolysis and pentosephosphate shunt during early embryogenesis of the loach and the effect of glucose, lactate and fumarate on fertilized oocytes].

The regularities for changes were established in activity of hexokinase, glucokinase, glucosephosphate-isomerase, phosphofructokinase and glucose-6-phosphate dehydrogenaseduring the early development of loach (Misgurnus fossilis). It was found that a 30-minute incubation of fertilized loach eggs in the lactate or fumarate solutions decreases the glucokinase activity in the embryos of 3, 6, 9, 12, 15, 18 and 24 hours of their development, while the inhibitory effect of glucose on the enzyme activity is pronounced only after 18 and 24 hours of the development. A significant increase in the hexokinase and glucose-6-phosphate dehydrogenase activities under the above-mentioned conditions is observed only under the effect of glucose 9 and 6 and 9 hours, respectively, after fertilization. The glucose phosphate isomerase and phosphofructokinase activites under the effect of used compounds undergo no changes during the primary stages of embryogenesis.

Animals↗
PubMedDate not supplied

[Effect of vitamins PP and B1 on pentosephosphate pathway enzymatic activity in the kidneys of adrenalectomized rats].

The activity of glucose-6-phosphate dehydrogenase (EC 1.1.1.44), transketolase (EC 1.1.1.44), transketolase (EC 1.1.1.49), 6-phosphogluconate dehydrogenase (EC 2.2.1.1.) and also the thiaminediphosphate (TDP) content were investigated on the 8th day after adrenalectomy. With compensated sodium dysbalance the removal of suprarenals is shown not to change the activity of dehydrogenases, but it does lower the transketolase activity and the TDP level. A seven-fold administration to adrenalectomized animals of nicotinic acid, thiamine or a simple injection of nicotinamide normalize the transketolase activity through raising the TDP level. The fact of the reduced transketolase activity in the kidneys in hypocorticotism being due to deficiency of the co-enzyme is also proved by the presence of the TDP-effect in vitro.

Adrenal Glands↗