V2EX leptin

Leptin

定义 Definition(中文)

Leptin(瘦素)是一种主要由脂肪细胞分泌的激素,向大脑(尤其是下丘脑)传递“能量储备/饱腹”信号,参与调节食欲、能量消耗与体重平衡。在肥胖相关研究中常被提及;需要注意的是,部分人群可能出现瘦素抵抗,即瘦素水平不低但信号作用减弱。

发音 Pronunciation (IPA)

/lptn/

例句 Examples

Leptin helps regulate appetite.
瘦素有助于调节食欲。

Although her leptin levels were high, she still felt hungry, suggesting possible leptin resistance.
尽管她的瘦素水平很高,她仍然感到饥饿,这提示可能存在瘦素抵抗。

词源 Etymology(中文)

Leptin来自希腊语词根 **lept-**(意为“瘦、细”),与“瘦(lean/slim)”的概念相关;该名称强调其与体重/脂肪调控研究的联系。

相关词 Related Words

文学与著作出现 Literary Works

  • Guyton and Hall Textbook of Medical Physiology(《盖伊顿与霍尔医学/人体生理学》):讨论瘦素在能量稳态与食欲调控中的作用。
  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》):在激素与代谢调节相关章节提及瘦素信号通路。
  • Campbell Biology(《坎贝尔生物学》):在内分泌/稳态与体重调节的语境中介绍瘦素。
  • The Obesity Code(Jason Fung,《肥胖密码》):面向大众的肥胖与激素调控讨论中多次提到瘦素与“瘦素抵抗”。
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