乌龟肝脏线粒体对钙外流的pH调节
pH regulation of calcium efflux by turtle liver mitochondria.
作者信息
Arruda J A, Dytko G
机构信息
Section of Nephrology, University of Illinois College of Medicine, Chicago 60612.
出版信息
Comp Biochem Physiol B. 1989;93(3):539-42. doi: 10.1016/0305-0491(89)90372-6.
PMID:2758797
Abstract
- Turtle liver mitochondria are capable of taking up calcium in a pattern similar to that described from rat liver mitochondria. 2. Turtle liver mitochondria also possess a system for calcium efflux which is extremely sensitive to changes in extramitochondrial pH. A decrease in extramitochondrial pH by addition of HCl or by gassing with CO2 caused a rapid release of calcium. 3. The profound changes in pH and pCO2 during deep diving likely affects Ca efflux from mitochondria in the turtle liver.
摘要
- 海龟肝脏线粒体能够以与大鼠肝脏线粒体中所描述的模式摄取钙。2. 海龟肝脏线粒体还拥有一个钙外流系统，该系统对外线粒体pH值的变化极为敏感。通过添加盐酸或用二氧化碳通气使外线粒体pH值降低会导致钙的快速释放。3. 在深度潜水期间pH值和二氧化碳分压的剧烈变化可能会影响海龟肝脏线粒体中的钙外流。
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