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硫氰酸钠与丹曲林钠对哺乳动物离体骨骼肌作用的比较。

A comparison of the effects of sodium thiocyanate and dantrolene sodium on a mammalian isolated skeletal muscle.

作者信息

Moulds R F

出版信息

Br J Pharmacol. 1977 Jan;59(1):129-33. doi: 10.1111/j.1476-5381.1977.tb06986.x.

Abstract

1 A combination of electrical and pharmacological stimulation has been used to compare the effects of sodium thiocyanate and dantrolene sodium on the excitation-contraction coupling (ECC) mechanism of the mouse soleus muscle. 2 Thiocyanate prolonged the 'active state' after electrical stimulation and increased the response to 8 mM caffeine and 80 mM KCl. Dantrolene had an opposite effect to thiocyanate on all the indices studied. 3 It is concluded that the mechanism of action of dantrolene is by inhibition of the release of the calcium ions involved in the ECC mechanism, probably at the level of the transverse tubules.

摘要
  1. 已采用电刺激和药理刺激相结合的方法来比较硫氰酸钠和丹曲林钠对小鼠比目鱼肌兴奋 - 收缩偶联(ECC)机制的影响。2. 硫氰酸盐延长了电刺激后的“活性状态”,并增强了对8 mM咖啡因和80 mM氯化钾的反应。丹曲林在所研究的所有指标上对硫氰酸盐有相反的作用。3. 得出的结论是,丹曲林的作用机制是抑制参与ECC机制的钙离子释放,可能是在横管水平。

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本文引用的文献

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Potentiating effect of potassium on skeletal muscle twitch.钾对骨骼肌抽搐的增强作用。
Am J Physiol. 1969 Sep;217(3):898-902. doi: 10.1152/ajplegacy.1969.217.3.898.
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Biochemical basis of malignant hyperpyrexia.恶性高热的生化基础。
Br Med J. 1974 May 4;2(5913):241-4. doi: 10.1136/bmj.2.5913.241.
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Augmentation of caffeine-contracture tension by twitch-potentiating agents in frog toe muscle.
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