Biull Eksp Biol Med
March 1976
Structure of chromatin in the nuclei of the isolated surviving hepatocytes and in the isolated nuclei of hepatocytes were studied by fluorochroming with acridine orange and by microfluorimetry of fluorescenc connected with the stain chromatin at 530 and 590 nm in intact rats and in the animals trained to hypoxia in a pressure chamber for 60 days. The nuclei of hepatocytes of intact rats were distributed by fluorescence at 530 nm into three classes with the intensity ratio of 1:2:4; as to the nuclei of hepatocytes of the rats trained to hypoxia - they formed a single class corresponding to the second class of control. In intact rats the ratio of the fluorescence intensity at 590 nm to such at 530 nm (alpha coefficient) formed normal distribution; in trained rats - a bimodal distribution with a shift of the maximum in the direction of reduction and increase of alpha in comparison with control.
View Article and Find Full Text PDFBiull Eksp Biol Med
September 1976
It was shown that on the 30th-60th days of training rats to hypoxia under conditions of pressure chamber there was an increase in ATP and 2,3-diphosphoglycerate content in erythrocytes. By changing the affinity of hemoglobin to oxygen the mentioned shifts could play an important role in the improvement of oxygen supply to the tissues.
View Article and Find Full Text PDFPeroxidase activity (PA) was studied in the rat's brain cortex during a 2 months training to hypoxia according to the Barbashova method. PA was investigated histochemically by an ammonium--molibdate--benzidine method on blocks of surviving brain tissue, thereafter they were studied by the contact microscopy. PA was also determined biochemically in water-salt extracts of the brain tissue.
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