V2EX ghrelin

Ghrelin

释义 Definition

Ghrelin(胃饥饿素):一种主要由分泌的激素/肽类信号分子,能向大脑传递“饥饿”信号、促进食欲,并可刺激生长激素释放。在能量平衡、进食行为与体重调节中很重要。

发音 Pronunciation

/riln/

例句 Examples

Ghrelin makes you feel hungry.
胃饥饿素会让你产生饥饿感。

After a short night’s sleep, ghrelin levels can rise, which may increase appetite the next day.
睡眠不足的一晚之后,胃饥饿素水平可能升高,从而让第二天的食欲更强。

词源 Etymology

ghrelin 是较新的科学术语(20世纪末提出),其命名与它“促进生长激素释放、与生长相关”的作用有关:词干常被解释为源自表示“生长(grow)”的古老词根(常见说法指向原始印欧语相关词根),后缀 -lin 则常用于肽类/蛋白相关命名。

相关词 Related Words

文学与著作中的用例 Literary Works

  • 《The Hungry Brain》(Stephan J. Guyenet) 讨论饥饿、食欲与激素调控时常提到 ghrelin。
  • 《The End of Overeating》(David A. Kessler) 涉及食欲驱动机制与相关激素(包括 ghrelin)的科普讨论。
  • 《The Obesity Code》(Jason Fung) 在谈论体重与内分泌调节时提及 ghrelin 等激素。
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