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1.
A A Nurmatov Iu A Kudriashov B I Tkachenko 《Biulleten' eksperimental'no? biologii i meditsiny》1989,107(1):16-19
Dependence of hypoxic changes of macro- and microcirculation on the activity of adrenergic receptors in the cooled organism was studied on decentralized shank of cat under perfusion with constant blood flow. After cooling of cat (to 30 degrees C) and blockade of alpha-adrenoreceptors hypoxic hypoxia (10% O2 in N2) caused (a) much greater reduction of precapillary resistance of shank, (b) more striking (by 3 times) increase of capillary filtration coefficient and (c) the increase of capillary pressure and postcapillary resistance in contrast to their decrease to hypoxia under hypothermia before alpha-blockade. Beta-adrenoreceptor blockade had no influence on the changes of the resistance and exchange function of skeletal muscle blood vessels evoked by hypoxia under cooling. 相似文献
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A V Smyshliaeva L H Nguyen Iu B Kudriashov 《Nauchnye doklady vysshe? shkoly. Biologicheskie nauki》1992,(4):9-13
The preparation Hypericum perforatum L. has been shown to decrease the intensity level of enzymatic and non-enzymatic processes of lipid peroxidation of rat liver microsomes in vitro and in vivo. In the mucus of the this intestine in vivo the increase of the number of non-enzymatic SH-groups is observed. Possible mechanisms of radioprotective action of the preparation is under discussion. 相似文献
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Pirutin SK Turovetskiĭ VB Pirutina OV Kudriashov IuB 《Radiatsionnaia biologiia, radioecologiia / Rossi?skaia akademiia nauk》2004,44(4):442-444
It was detected that exposure of macrophages to red light (600-740 nm) led to the changes in their intracellular pH and hydrolytic activity. The character of these changes depends on the initial level of pH in the cells. The maximum effect of irradiation is detected if the initial pH level is low. It is possible that Na/H-exchanger takes part in normalizing effect of red light on intracellular pH level. 相似文献
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Pirutin SK Turovetskiĭ VB Pirutina OV Kudriashov IuB 《Radiatsionnaia biologiia, radioecologiia / Rossi?skaia akademiia nauk》2004,44(4):438-441
It was shown that UV-irradiation caused damage to mice peritoneal macrophage plasma membranes. A decrease in extracellular Ca2+ leads to a decrease of the damaging effect. An increase in extracellular Ca2+ or adding of calcium ionophore A23187 to the medium is accompanied by an increase in a number of damaged cells. These data allow us to suppose that modification of the damaging effect of UV-irradiation by Ca2+ ions can be bound with changing of electric stability of membrane lipid matrix. 相似文献
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Pirutin SK Turovetskiĭ VB Kudriashov IuB 《Radiatsionnaia biologiia, radioecologiia / Rossi?skaia akademiia nauk》2011,51(4):419-424
Effect of Ca2+ ions on UV-induced mice peritoneal macrophage plasma membrane damage has been studied. Drop of the extracellular Ca2+ concentration has been found to result in a reduced expression of this damage. On the contrary, a raised intra- and extra-cellular Ca2+ level is associated with a higher number of cells with damaged plasma membranes. These findings make it possible to suggest that this change in the plasma membrane photosensitivity might be a result of alterations in the membrane lipid matrix electrical stability owing to UV-induced lipid photo-peroxidation. This study has also shown that free radical peroxidation of membrane lipids plays a significant part in UV-induced cell damage. 相似文献
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Kudriashov IuA Tsviashchenko TIu 《Rossi?skii fiziologicheski? zhurnal imeni I.M. Sechenova / Rossi?skaia akademiia nauk》2011,97(1):57-64
In cats, the calcium antagonist Verapamil depressed vein constrictor responses to noradrenaline and angiotensine II both under conditions of wholesome endothelium and physical-chemical and chemical de-endothelisation. Following the de-endothelisation the vein responses recovered. The data obtained suggest that this recovery seems to be due to opening of new calcium channels that are independent of the Verapamil effect. 相似文献