首页> 外文期刊>Российский физиологический журнал >Role of Ca2+ and aquaporin-2 in regulation of basolateral water permeability of collecting ducts in the rat kidney
【24h】

Role of Ca2+ and aquaporin-2 in regulation of basolateral water permeability of collecting ducts in the rat kidney

机译:Ca2 +和Aquaporin-2在大鼠肾脏收集管道的基础外水渗透调节中的作用

获取原文
获取原文并翻译 | 示例
       

摘要

The role of AQP2,3 and intracellular calcium in vasopressin-induced increase in the water permeability of the basolateral cell membrane in microdissected rat kidney OMCD was studied. It was shown that increase in the water permeability of the basolateral membranes correlated with increase in the content of AQP2 and AQP3 in the membrane fraction isolated from outer kidney medulla. Preliminary loading of cells with BAPTA-AM which binds intracellular Ca2+ abolished the increase in the water permeability and prevented the rise of the AQP2 content in response to dDAVP. BAPTA was ineffective to block the enhancement of AQP2 content in membrane fraction in presence of dDAVP. These results suggest that the increase in intracellular calcium activity and the enhanced content of AQP2 in plasma membrane are important for the antidiuretic effect of dDAVP.
机译:研究了AQP2,3和细胞内钙的作用,在微小物切割大鼠肾OMCD中的基础间细胞膜的水渗透率上的增加。 结果表明,基石外膜的渗透性增加与从外肾髓质中分离的膜馏分中的AQP2和AQP3的含量增加相关。 用Bapta-AM的细胞初步加载细胞内Ca 2 +废除了水渗透性的增加,并响应DDAVP预防AQP2含量的升高。 Bapta无效地阻止在DDAVP存在下提高膜分数中的AQP2含量。 这些结果表明,细胞内钙活性的增加和血浆膜中AQP2的增强含量对于DDAVP的抗性作用是重要的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号