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Biomedical subjects

A S Razin

Publications and source records attributed to A S Razin.

16 recordsLinked to original sources
PubMed1991

[Study of the status of energy metabolism in thyrotoxicosis by the insulin test].

The insulin test was carried out in 68 healthy subjects and 20 patients with moderate thyrotoxicosis at the stage of compensation. Blood levels of pyruvate and lactate, plasma and erythrocytic glucose, urinary catecholamines and gas exchange were measured before, 30 and 120 min after intravenous administration of insulin (0.15 U/kg). All the measurements evidenced hypermetabolism: oxygen consumption, carbonic acid production, pulmonary ventilation were enhanced; lactate-pyruvate index and urine catecholamines were lower versus those of healthy subjects. Correlation analysis demonstrated disturbed regulation of hyperventilation by the sympathetic-adrenal system in thyrotoxicosis.

Adult↗
PubMed1990

[Study of metabolic characteristics in patients with ischemic heart disease based on the insulin test].

The study was undertaken to examine 68 healthy males and 34 patients with Functional Class I coronary heart disease. The insulin test (fasting intravenous simple insulin, 0.15 U/kg body weight, was given in the morning) was performed. The study was conducted in 3 stages: 1) before, 2) 30 min, and 3) 2 hr after insulin administration. Examination of glycemia and gas exchange revealed changes resulting in impaired energy supply of the body in CHD. In CHD patients, the enhanced glucose uptake after insulin was followed by abnormalities both in aerobic and anaerobic glucose oxidation. The insulin test detected the signs of excessive overtension and diminished reserve potentialities of the sympathetic adrenal system early in CHD.

Adult↗
PubMedDate not supplied

[Metabolic changes in simulated weightlessness].

8 healthy subjects participated in 2 series of experiments on the comparative studies of two techniques of respiratory therapy employing multicomponent anesthesia during controlled lung ventilation in normal conditions and in experimental weightlessness. It has been established that experimental weightlessness, as compared to normal conditions of controlled lung ventilation, was more favourable for the maintenance of effective energy exchange in erythrocytes and tissue O2 consumption. Both techniques of respiratory therapy during controlled lung ventilation are recommended in these conditions.

Adult↗