[The effect of adrenaline on the succinate dehydrogenase activity in functionally changed (lymphoid leukosis) lymphocytes in mice].

The activity of succinate dehydrogenase (SDH) in lymphocytes of peripheral blood of AKR mice was measured in response to intraperitoneal injection of epinephrine hydrochloride at a dose of 1 mg/kg. SDH reactions to epinephrine were of two types: increase or decrease of activity. The type of reaction depended on the initial enzyme level.

[Species-specific reactions of succinate dehydrogenase of lymphocytes in animals to acute hypoxic hypoxia and its relation to the radiation resistance of the body].

Experiments on rats and dogs showed that acute hypoxic hypoxia caused an increase of succinate dehydrogenase (SDH) in blood lymphocytes. The rate of SDH increase (VSDH) depended on the oxygen concentration in the breathing hypoxic mixture (BHM) and the animal species. In dogs it proved to be lower than in rats.

[Comparison of changes in succinate dehydrogenase activity in blood lymphocytes and modification of radiosensitivity by exogenous hypoxia].

Radioprotective efficiency of gas hypoxic mixtures (GHM) containing 5-12% of oxygen and the rate of the reaction of succinate dehydrogenase (VSDG) activity in peripheral blood lymphocytes upon breathing GHM were comparatively studied in rats and dogs. VSDG was 4393.5 (%O2)-2.

[Cytochemical determination of the enzyme activity of cerebrospinal fluid lymphocytes in dogs].

Cytochemical methods commonly used in hematology were applied to studying the liquor lymphocytes of dogs. According to our observation of decreasing their activity, the enzymes examined are placed in the following order: alpha-glycerophosphate, glutamate, lactate, and succinate dehydrogenase. High and reliable values of asymmetry and excess coefficients show the absence of the normal distribution of enzymatic activity in the investigated population of lymphocytes.

[Effect of gamma-irradiation on the enzyme activity of cerebrospinal fluid lymphocytes in dogs].

Cytochemical activity of succinate dehydrogenase (SDG), L-glycerophosphate dehydrogenase (L-GPDG), lactate dehydrogenase (LDG), and glutamate dehydrogenase (GDG) increased immediately after total-body irradiation with a dose of 129 mC/kg. After 2 h, LDG activity only returned to the control level. Irradiation of the head with the same dose caused less pronounced changes.