CHANGES IN SURFACE CARBOHYDRATES OF ERYTHROCYTES DURING INVIVO AGING

被引:31
作者
CHOY, YM
WONG, SL
LEE, CY
机构
[1] Department of Biochemistry The Chinese University of Hong Kong, Shatin, New Territories
关键词
D O I
10.1016/0006-291X(79)91537-7
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Erythrocyte aging is accompanied by an overall reduction in surface carbohydrate content. A decrease in sialic acid and an increase in D-galactose and N-acetylgalactosamine in the terminal position of the glycoprotein polysaccharide chains are also observed in aged erythrocytes. In the light of these and other observations, it is proposed that the newly exposed galactose/galactosamine residues in the desialylated glycoproteins may serve as recognition signals triggering the elimination of senescent erythrocytes from circulation. © 1979.
引用
收藏
页码:410 / 415
页数:6
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