Pollack , George , Reba , Kaufman , and Crosby

Iron-deficient diet: effects in rats and humans.

By RICHARD M. KAUFMAN, Sn LEoN POLLACK AND WILLIAM H. CROSBY U NDER NORMAL CIRCUMSTANCES the absorption of iron by the intestinal mucosa appears to be controlled chiefly by body iron stores and by the level of erythnopoietic activity of the bone marrow.1 In a preliminary communication we have reported the existence of an additional factor which potently influences iron absorption in the nat-lac...

Iron Absorption: Effects of Sugars and Reducing Agents.

LTHOUGH many substances have been shown to increase iron ahsorption, the mechanism of this action is obscure. Fructose, for example, increases iron absorption in rats, and it has been suggested that its effect depends on its ability to chelate iron.4 We proposed to test this hypothesis, and to in ’estiga e possible relationships between the effects of various metabolic substrates and reducing a...

Studies of in vitro primaquine hemolysis: substrate requirement for erythrocyte membrane damage.

Origin of Pulmonary Megakaryocytes.

S EVEN DECADES AGO Aschoff’ described the presence of megakaryocytes in the lungs. It was his opinion that these cells migrated from the bone marrow under chemotactic stimulation and lodged in the pulmonary capillaries. A few years later Foa2 suggested that this occurrence was a normal, physiologic event which was exaggerated ( and therefore more readily observed ) under pathologic conditions. ...

Expression of the Basic Helix-Loop-Helix Protein REBa in Rat Testicular Sertoli Cells1

Sertoli cell differentiation is initiated in the embryo to promote testicular development and male sex determination. In the adult, Sertoli cells are critical for maintenance of the spermatogenic process. Previously, Sertoli cell differentiation has been shown to be regulated in part by basic helix-loop-helix (bHLH) transcription factors. This was based on the observation that promoters of a nu...