蟹神经中的钾潴留
Potassium retention in crab nerve.
作者信息
SHANES A M
出版信息
J Gen Physiol. 1950 Jul 20;33(6):643-9. doi: 10.1085/jgp.33.6.643.
Abstract
Spectrophotometric determinations of the potassium content of small volumes of sea water brought into contact with crab nerves over half-hour intervals demonstrate (a) a continuous loss of potassium from the fibers while at rest in oxygen; (b) an appreciable increase in the leakage during anoxia; (c) a reabsorption of potassium during postanoxic recovery; and (d) a reduction in the amplitude of the anoxic and postanoxic changes in the presence of glucose.
摘要
用分光光度法每隔半小时测定与蟹神经接触的少量海水中的钾含量，结果表明：(a) 纤维在有氧环境中静止时钾持续流失；(b) 缺氧时钾泄漏明显增加；(c) 缺氧后恢复过程中钾被重新吸收；(d) 葡萄糖存在时，缺氧和缺氧后变化的幅度减小。
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