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The erythrocytes of the newborn infant have many properties that distinguish them from those of adults, and their membranes are also different from those of adult erythrocytes. We compared the ability of adult and neonatal RBCs to undergo endocytosis on exposure to drugs. Using a quantitative method, we showed that neonatal erythrocytes undergo a greater(More)
Storage of human erythrocytes in CPD produced a lesion of the erythrocyte membrane manifested by abnormal endocytosis in resealed ghosts and in intact erythrocytes. Endocytosis produced by resealing Ca, Mg, and ATP into ghosts was impaired by five weeks of storage and this defect was promptly reversed by the prior regeneration of ATP in the stored(More)
several normal and neoplastic mouse tissues. APP is rapidly cleared from the peritoneal fluid and blood after intraperitoneal or intravenous administration. The drug is taken up by the blood cells and is lost from them less rapidly than from serum. Approximately one-half of the administered drug is excreted in the urine from nor mal mice in 24 hours, and(More)
Shearing of ghosts in a French pressure cell produces three classes of microvesicles that differ from endocytic vacuoles, exocytic vacuoles, and inside-out vesicles. It was thought that an analysis of these vesicles might provide some clues about the assembly of proteins within the human erythrocyte membrane. The microvesicles were separated into three(More)