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News in Physiological Sciences, Vol 3, 25-27, Copyright © 1988 by International Union of Physiological Sciences
ARTICLES |
N Akaike
A K-deficient diet causes a decrease in plasma K in rats, but the cellular K concentration in brain tissue is maintained. In muscle tissue, however, the K concentration decreases, making it appear that the muscle serves as a buffer or reservoir for K. The decrease in muscle K is regulated from the hypothalamus, mediated by suppression of the muscle active Na-K pump. Interestingly, the control of tonic and twitch muscle differs.
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