V2EX ketogenesis

Ketogenesis

Definition 释义

酮体生成(作用):一种主要发生在肝脏线粒体中的代谢过程,把脂肪酸分解产生的乙酰辅酶A转化为酮体(如乙酰乙酸、β-羟丁酸、丙酮),以便在饥饿、低碳水饮食、长时间运动或未控制的糖尿病等情况下为身体提供替代能量来源。(在生物化学语境中最常用;该词也可更宽泛地指“酮体的产生过程”。)

Pronunciation 发音(IPA)

/kitodnss/

Examples 例句

Ketogenesis increases when carbohydrate intake is very low.
当碳水化合物摄入非常低时,酮体生成会增加。

During prolonged fasting, the liver shifts toward ketogenesis, producing ketone bodies that help supply energy to the brain and muscles.
在长时间禁食期间,肝脏会转向酮体生成,产生酮体以帮助为大脑和肌肉提供能量。

Etymology 词源

ketogenesis 由 **keto-**(与“酮”相关,源自 ketone)+ -genesis(“生成、起源”,来自希腊语 génesis)组成,字面意思就是“酮的生成”。该词常见于医学与生物化学教材,用来描述机体在葡萄糖供应不足时的能量代偿机制之一。

Related Words 相关词汇

Literary Works 文献与著作中的用例

  • Lehninger Principles of Biochemistry(《莱宁格生物化学原理》)
  • Harper’s Illustrated Biochemistry(《哈珀图解生物化学》)
  • Guyton and Hall Textbook of Medical Physiology(《盖顿与霍尔医学生理学》)
  • Biochemistry by Berg, Tymoczko & Stryer(《生物化学》Stryer 等)
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