Biomedical subjects
Publications and source records attributed to S P Korochanskaia.
It was established experimentally that antituberculous agents (isoniazide, rifampicin, methazid, ethambutol, PAS) and their combination (isoniazide + rifampicin + PAS; isoniazide + PAS; methazid + PAS) inhibit erythrocytic glucoso-6-phosphate-dehydrogenase, glycerophosphate-dehydrogenase. This should be considered in instituting individual antituberculous therapy.
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Metazamide, phthivazid, larusan and rifamycin were shown to inhibit activities of glucose-6-phosphate-, isocitrate- and malate dehydrogenases in male rats within 10-14 days by 14-32%; as a result of this, the rate of glucose consumption was decreased in blood, as shown by the shape of sugar plots after loading with 300 mg of glucose. Administration of these drugs led to elevation of sugar curves by 11-18% as compared with controls. p-Amino-salicylic acid, isoniazid and protionamide inhibited the enzymatic activity but affected the rate of glucose consumption only slightly. Ethambutal activated these enzymes by 13-29%; the highest rate of glucose consumption was observed in presence of the drug.
The dynamics of glucose content and activity of GL-6-FDG, MDG, ICDG and of catalase in the erythrocytes of healthy people under glucose load was investigated. It has been established that maximal increase of the glucose content in blood under glucose load occurs 60 min later and the peak of activity of all the studied enzymes--90 min later. A degree of the activity increase in certain enzymes is not the same. It enhances considerably in GL-6-FDG and catalase and is hardly tracable in MDG and ICDG. A conclusion is made that glucose metabolism in erythrocytes is accompanied by the intensification of synthesis and hydrogen peroxide decomposition processes.
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