IS THE MILK-FAT-GLOBULE MEMBRANE A MODEL FOR MAMMARY SECRETORY-CELL APICAL MEMBRANE

被引：6

作者：

SHENNAN, DB

机构：

来源：

EXPERIMENTAL PHYSIOLOGY | 1992年 / 77卷 / 04期

关键词：

D O I：

10.1113/expphysiol.1992.sp003630

中图分类号：

Q4 [生理学];

学科分类号：

071003 ;

摘要：

K+(Rb+) uptake by milk-fat-globule membrane (MFGM) vesicles and skim-milk membrane vesicles isolated from bovine milk has been Studied. The K+(Rb+) permeability of MFGMs was very low in both high- and low-strength ionic media. In contrast, skim-milk membranes displayed a significant permeability to K+(Rb+). The results suggest that these membrane preparations do not originate from the same source on the mammary secretory cell and also call into question the suitability of the MFGM as a model for the apical membrane of mammary epithelial cells.

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页码：653 / 656

页数：4

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