I N Ianvareva

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The responses of cortical neurons to multiple short-term hypoxic influences were studied in immobilised cats. ARs were recorded. To produce hypoxia, artificial respiration was switched off for a period of 3-5 min every 60-90 min. Cortical neurons, hypothalamus, cerebellum were shown to increase their tolerance to oxygen deficiency. There was a significant(More)
Responses of the cardio-vascular system and bioenergetic metabolism were studied in the heart tissue in apnoea in naturally adapted to diving musk-rats and unadapted rats and mice. A sharp bradycardia was shown to develop in former animals in arresting a breathing as well an increase in the neutrophils contents in the blood. The data obtained suggest that(More)
The pulse activity of the neurons (50 in all) was studied in the brain somatic cortex by glass microelectrodes in acute experiments on 22 cats after an intravenous injection of hydrocortisone-hemisuccinate in doses of 0.03-8.0 mg/kg. 36 of 50 neurons changes their activity after the injection. Three types of reactions prevailed: an increase of the pulse(More)
The effects of adaptation to cold-and-hypoxic exposure on the cardiovascular system, lipid peroxidation and concentrations of adaptogenesis involved hormones were studied in male students. The two weeks cold- and hypoxic training was shown to be accompanied by a significant increase of apnea duration, reduced velocity of bradycardia development and a more(More)
The effects of antihypoxants gutimine and amtisole on oxygen consumption by the intact nerve cell of the invertebrate and the activity of NADN-DH and SDH-dependent ways of oxidation in the cell were studied. Under normoxia gutimine inhibited the nerve cell respiration and decreased the activity of NADN-DN and SDH-dependent ways of oxidation by 15% and 5%(More)
In anesthetized cats, spontaneous activity was recorded in neurons of the anterior, supraoptic, lateral, ventro-medial and posterior nuclei of the hypothalamus under conditions of oxygen deficit induced by the blood loss or discontinuation of artificial respiration. Phases of activation and suppression of electric activity of different hypothalamic nuclei(More)