Effects of Growth Hormone upon Erythropoiesis in the Hypophysectomized Rat.

Abstract
Admn. of the Raben-Westermeyer growth hormone prepn., possessing little or no gonadotropic, corticotropic or thyrotropic hormone activity, to hypophysectomized rats results in peripheral reticulocytosis and increased nos. of nucleated erythroid elements within the bone marrow. Considerable repair of the hypoplastic marrow is induced by this agent. A rise in peripheral erythrocytic values fails to occur probably because of a concomitant increase in plasma vol.