V2EX anaplerosis

Anaplerosis

Definition / 定义

补充反应;补给代谢:指在代谢过程中通过特定反应补充三羧酸循环(TCA/Krebs 循环)中间产物的过程,以维持循环运转与能量、合成代谢需求。常见于氨基酸分解、糖异生相关途径等。该词主要用于生物化学与生理学语境。

Pronunciation / 发音

/nplross/

Examples / 例句

Anaplerosis helps keep the TCA cycle running.
补充反应有助于让三羧酸循环持续运转。

When glucose is scarce, anaplerosis from amino acids can replenish TCA intermediates and support energy production in muscle.
当葡萄糖不足时,来自氨基酸的补充反应可以补充三羧酸循环中间产物,并支持肌肉的能量生成。

Etymology / 词源

anaplerosis 源自希腊语 anaplērōsis,意为“填满、补充”(由 *ana-*“再次、向上” + plēroō“填充、使充满”构成)。因此在生物化学中专指“把循环中被抽走的中间物再补回来”的概念。

Related Words / 相关词

Literary Works / 文学与典籍例证

  • Lehninger Principles of Biochemistry(《莱宁格生物化学原理》)中在三羧酸循环与补给/补充反应的小节中使用 anaplerosis 讨论中间产物的补充来源。
  • Biochemistry by Berg, Tymoczko & Stryer(《斯特赖尔生物化学》)在 TCA 循环与代谢整合章节中用 anaplerotic reactions/anaplerosis 解释循环“补库”的必要性。
  • Harper’s Illustrated Biochemistry(《哈珀图解生物化学》)在能量代谢与临床相关代谢调控部分提及 anaplerosis 与氨基酸代谢、糖异生的联系。
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