觉醒诱导的自由活动大鼠皮质[K⁺]升高。
Arousal-induced increase of cortical [K+] in unrestrained rats.
作者信息
Korytová H
出版信息
Experientia. 1977 Feb 15;33(2):242-4. doi: 10.1007/BF02124090.
PMID:844574
Abstract
Changes of extracellular concentration of brain potassium [K+]e were studied in lightly anesthetized unrestrained rats with ion-selective K+-microelectrodes introduced into the cerebral cortex with a head-mounted microdrive system. Nociceptive stimuli elicited EEG arousal lasting for 47 sec on the averag which was accompained by an increase of [K+]e from 3.0 mM to 3.31 +/- 0.04 mM.
摘要
在轻度麻醉、未受束缚的大鼠中，使用头戴式微驱动系统将离子选择性钾微电极插入大脑皮层，研究脑外钾离子浓度（[K⁺]e）的变化。伤害性刺激引起脑电图觉醒，平均持续47秒，同时[K⁺]e从3.0毫摩尔/升增加到3.31±0.04毫摩尔/升。
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