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乌龟肌肉中的产热与化学变化。

Heat production and chemical change in tortoise muscle.

作者信息

Walsh T H, Woledge R C

出版信息

J Physiol. 1970 Feb;206(2):457-69. doi: 10.1113/jphysiol.1970.sp009024.

Abstract
  1. Measurements have been made of heat production and changes in levels of phosphorylcreatine (PC), ATP and lactic acid resulting from contraction of tortoise muscle under anaerobic conditions.2. The only significant chemical change found was a break-down of PC.3. The amount of heat produced per mole of PC split (-DeltaH) was 13.18 +/- 1.04 kcal/mole (mean and S.E. from thirty-five observations).4. (-DeltaH) is probably rather greater in tortoise than in frog muscle. The value of (-DeltaH) cannot easily be accounted for by the known processes accompanying PC splitting in either type of muscle.
摘要
  1. 已对乌龟肌肉在无氧条件下收缩所产生的热量以及磷酸肌酸(PC)、三磷酸腺苷(ATP)和乳酸水平的变化进行了测量。

  2. 发现的唯一显著化学变化是PC的分解。

  3. 每摩尔分解的PC产生的热量(-ΔH)为13.18±1.04千卡/摩尔(来自35次观察的平均值和标准误差)。

  4. 乌龟肌肉中的(-ΔH)可能比青蛙肌肉中的要大得多。无论是哪种类型的肌肉,已知的伴随PC分解的过程都难以解释(-ΔH)的值。

相似文献

1
Heat production and chemical change in tortoise muscle.乌龟肌肉中的产热与化学变化。
J Physiol. 1970 Feb;206(2):457-69. doi: 10.1113/jphysiol.1970.sp009024.
2
Heat work and phosphorylcreatine break-down in muscle.肌肉中的热功与磷酸肌酸分解
J Physiol. 1968 Mar;195(1):157-83. doi: 10.1113/jphysiol.1968.sp008453.
8
Energetics of relaxation in frog muscle.青蛙肌肉放松的能量学
J Physiol. 1974 Apr;238(2):437-46. doi: 10.1113/jphysiol.1974.sp010535.

引用本文的文献

6
Energetics of activation in frog and toad muscle.青蛙和蟾蜍肌肉激活的能量学
J Physiol. 1972 Feb;220(3):583-99. doi: 10.1113/jphysiol.1972.sp009724.

本文引用的文献

3
Work and chemical change in isotonic muscular contractions.等张肌肉收缩中的功与化学变化。
Biochim Biophys Acta. 1962 Feb 12;57:1-12. doi: 10.1016/0006-3002(62)91071-5.

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