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在哺乳动物,红细胞的产生是受体液机制即红细胞生成素调节的,并且取决于作用在特殊受体上的组织氧张力.红细胞生成素是一种不耐热的糖蛋白,分子量为46,000.胎儿后期红细胞生成素主要在胎肝中产生,出生后,90%的红细胞生成素在肾脏,10%在其他组织中形成.红细胞生成素作用于敏感的造血干细胞上,刺激它们增生分化成红细胞,至发育终末期又促进其从骨髓释放到血循环中.胎儿红细胞生成的形态学已较清楚,但关于它
In mammals, the production of erythrocytes is regulated by the humoral mechanism, erythropoietin, and depends on the tissue oxygen tension acting on specific receptors. Erythropoietin is a thermolabile glycoprotein with a molecular weight of 46,000. Late fetal erythropoietin is mainly produced in the fetal liver, after birth, 90% of erythropoietin in the kidneys, 10% of the formation in other tissues.Erythropoietin acts on sensitive hematopoietic stem cells to stimulate their proliferation and differentiation into red blood cells, To the end of development and promote its release from the bone marrow into the blood circulation .Fetal erythropoiesis morphology is more clear, but about it