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pubmed:abstractText |
During fractionation of the rabbit leukocytic pyrogen (LP) on Sephadex column and by the ethanol method, the apyrogenic protein fraction was isolated. In intact rats this fraction induced granulocytopoiesis stimulation: a rise in granulocyte proliferative activity, an increase in total granulocyte count in the bone marrow and peripheral blood, and also a rise in the number of macrocolonies in the spleen of lethally irradiated mice due to an increase in granulocyte colonies.
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