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Changes in the rat lymphoid organs in acute hypoxia
Authors:A M Naliva?ko
Abstract:Changes occurring in the rat thymus, spleen, mesenteric lymph nodes have been studied by means of some histological and cytofluorimetrical methods under the effect of an acute hypoxia that imitates the rise to 7,000 m above the sea level for 1 h and to 6,500 m for 6 h. Under the effect of hypoxia, migration of differentiated lymphocytes out of the lymphoid organs is increasing, certain essential shifts in temporal parameters take place in the mitotic cycle of the lymphocytes, contents of nucleic acids in the lymphoid cells change. The phenomena mentioned demonstrate that under the acute hypoxic stress, intensified differentiation processes of the lymphocytes in the thymus, spleen and the lymph node take place and the lymphoid tissue functional activity increases.
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