V2EX pepsinogen

Pepsinogen

Definition / 定义

Pepsinogen(胃蛋白酶原):由胃黏膜(主要是胃主细胞)分泌的不活化酶原,在胃酸环境下可被激活为pepsin(胃蛋白酶),参与蛋白质的初步消化。

Pronunciation / 发音

/ppsnodn/

Examples / 例句

Pepsinogen is released by cells in the stomach.
胃里的细胞会释放胃蛋白酶原。

When the stomach becomes more acidic, pepsinogen is converted into pepsin, helping break down dietary proteins into smaller peptides.
当胃内酸度升高时,胃蛋白酶原会转化为胃蛋白酶,帮助把食物蛋白质分解成更小的肽段。

Etymology / 词源

pepsinogenpepsin(胃蛋白酶)+ -ogen(“……的前体/生成……的”)构成;其中 pepsin 源自希腊语词根,含“消化”之意。整体字面意思是“生成胃蛋白酶的前体”。

Related Words / 相关词

Literary Works / 文学作品

  • Guyton and Hall Textbook of Medical Physiology(《盖顿与霍尔医学生理学》)
  • Robbins and Cotran Pathologic Basis of Disease(《罗宾斯与科特兰病理学》)
  • Lehninger Principles of Biochemistry(《莱宁格生物化学原理》)
  • Boron & Boulpaep Medical Physiology(《博龙与布尔帕普医学生理学》)
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