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1.
I V Kudriashova D B Logunov O S Papsuevich R I Kruglikov 《Biulleten' eksperimental'no? biologii i meditsiny》1985,99(1):5-7
Perfusion of the snail (Helix lucorum L.) CNS with DG-AVP (concentration 10(-6) M) in the course of low frequency intracellular stimulation (2-4-minute interval) of the defensive reflex command neurons led to an increase in the excitability. It was expressed both in the reduction of the spike generation latency, in the increased number of spikes in response to fixed stimuli, and in the activation of pacemaker potentials. If DG-AVP was added to the medium during endoneuronal habituation, there was no increase in the excitability. It is supposed that modification of the neuronal excitability may be caused by the DG-AVP effect on the pacemaker mechanism. 相似文献
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Gracheva I. A. Tretiakova D. S. Zamyshlyaeva O. G. Kudriashova E. S. Vodovozova E. L. Fedorov A. Y. Boldyrev I. A. 《Russian Journal of Bioorganic Chemistry》2021,47(5):1114-1117
Russian Journal of Bioorganic Chemistry - Fluorescent lipid probes are widely used as tools for studying the properties of biological membranes and for studies of such biological functions of... 相似文献
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Serebrianyĭ AM Aleshchenko AV Gotlib VIa Kudriashova OV Semenova LP Pelevina II 《Tsitologiia》2003,45(1):81-85
Using lymphocytes of 5 healthy individuals the ability to adaptive response (AR), cell composition of population after PHA stimulation, changes in cell composition population after irradiation in the dose of 1.0 Gy and after irradiation in adaptive (0.05 Gy) and challenge (1.0 Gy) doses have been studied. AR observed in 2 of the 5 individuals only. After PHA stimulation the persons with AR have the total amount of cells after mitosis or during mitosis (the number of binucleated cells + the number of multinucleated cells + the whole cells with micronuclei + the number of mitotic cells) on average is higher than in persons without AR. In individuals with AR the linear correlation between the number of binucleated cells with micronuclei (on the 1000 scored binucleated cells) and the part of binucleated cells in the population is observed with coefficients of correlation -0.89 and -0.91. In the humans without AR this correlation is absent. The correlation observed permits to suppose that AR may occur at the expense of not only the decrease in number of damaged lymphocytes, but also the increase in the share of not damaged binucleated cell with the stable number of damaged cells. 相似文献
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Navolotskaia EV Vanina VI Zargarova TA Goncharenko EN Kudriashova NIu Akhalaia MIa Sadovnikov VB Semushkina SG Kolobov AA Kampe-Nemm EA Iurovskiĭ VV Lipkin VM 《Bioorganicheskaia khimiia》2004,30(4):350-355
The effect of immunocortin, an ACTH-like decapeptide VKKPGSSVKV corresponding to the 11-20 sequence of the variable part of the human IgG1 heavy chain on the content of 11-hydroxycorticosteroids (CS) in rat adrenal glands and blood serum in vivo was studied. An intramuscular injection of immunocortin at a dose of 10 microg/kg was found in an hour to induce a twofold decrease in CS content in the adrenal glands and a 1.8-fold increase in the blood serum CS content. At the same time, an immunocortin dose of 100 microg/kg exerted practically no effect on the CS content and its dose of 1000 microg/kg increased the CS content both in adrenal glands and in blood serum by 1.6 and 2.2 times, respectively. Four hours after the injection of any of the three doses of immunocortin, the CS content in adrenal glands did not differ from the control value, and after 24 h the content decreased threefold. Immunocortin was shown to be bound by the ACTH receptors in the membranes of the rat adrenal cortex with a high affinity and specificity (inhibiting the specific binding of 125I-labeled ACTH-(11-24) peptide with Ki of 1.2 nM). 相似文献
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Expression of T-cadherin in the rat carotid artery wall after balloon injury and in different rat organs 总被引:1,自引:0,他引:1
Kudriashova EIu Bashtrykov PP Ivanov DB Antropova IuG Il'inskaia OP Tararak EM Bochkov VN Parfenova EV 《Tsitologiia》2002,44(3):285-295
T-cadherin is an unusual glycosilphosphatidylinositol (GPI)-anchored member of the cadherin family of cell adhesion proteins. In contrast to classical cadherins, tissue distribution of T-cadherin so far remained unknown. We examined tissue distribution of T-cadherin in rats using Western blotting and immunohistochemical method. Our results show that T-cadherin is expressed in all types of muscles (cardiac, striated, and smooth muscles), in brain neurons, and spinal cord, in the vessel endothelium, at the apical pole of intestinal villar epithelium, in the basal layer of skin, and eosophagal epithelium. Blood-derived and lymphoid cells as well as connective tissue were T-cadherin-negative. The highest level of T-cadherin expression was revealed in the cardiovascular system. Although T-cadherin was detected in smooth muscle cells, its role in the intimal thickening and restenosis is not known. We examined T-cadherin expression within 1-28 days after balloon injury of rat left carotid arteries. T-cadherin expression was valued immunohistochemically with semiquantitative method. In uninjured arteries, T-cadherin was expressed in endothelial (vWF-positive) cells, and smooth muscle (alpha-actin-positive) cells (SMCs). After denudation of arterial wall, T-cadherin was present both in the media and neointima. We revealed dynamics of T-cadherin expression in the media of injured artery: an essential increase being registered at the stage of cell migration and proliferation in the media and neointima (1-7 days), followed by its decrease to the baseline level (10-28 days). The high upregulation of T-cadherin expression in the media and neointima during migration and proliferation of vascular cells after vessel injury enables us to suggest the involvement of T-cadherin in vessel remodeling after balloon catheter injury. 相似文献
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Zabolotnyĭ AI L'vov NP Khripach VA Kudriashova NN 《Prikladnaia biokhimiia i mikrobiologiia》2003,39(1):110-115
During the formation and ripening of beans in yellow lupine, their intactness may be increased by treatment of the plants with the microelement molybdenum or the growth factor 24-epibrassinolide. Early stages of the effects of either factor involved activation of various metabolic pathways; eventually, the supply of fruit elements with free amino acids was improved and the seed productivity of the plants, increased. 相似文献
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Il'inskaia OP Kudriashova EIu Antropova IuG Kalinina NI Solomatina MA Bobik A Tararak EM 《Tsitologiia》2003,45(7):678-689
At present the issue of a possible role of circulating stem cells and precursors in pathological vascular wall remodeling after angioplasty remains unsolved. Therefore the origin of neointimal cells was examined in the rat carotid artery after balloon angioplasty using morphological and immunocytochemical approaches. It is shown that at the early stages (1-7 days) after vessel injury acute inflammatory response arises in the arterial wall recruiting neutrophils, monocytes, macrophages as well as large amounts of low-differentiated blood-derived cells. At the late stages (10-28 days), at the area of injured intima, a new hyperplastic intima (neointima) is formed, which consists of cells carrying specific smooth muscle markers--alpha-actin and smoothelin. The study on cell proliferative behaviour in the injured vessel wall by bromodeoxyuridine showed that in the process of neointima formation blood-born rather than resident cells are involved. Probably, early smooth muscle and endothelial precursor cells penetrate into injured area with blood stream, where they proliferative and differentiate into mature cells. 相似文献