V2EX sphingomyelin

SPHINGOMYELIN

释义 Definition

鞘磷脂:一种重要的磷脂类脂质,属于鞘脂(sphingolipids)的一种,常见于细胞膜,尤其在神经细胞的髓鞘中含量较高;在膜结构与信号传导中具有作用。(在生物化学语境中最常用此义。)

发音 Pronunciation (IPA)

/sfomaln/

例句 Examples

Sphingomyelin is a major component of the myelin sheath.
鞘磷脂是髓鞘的重要组成成分。

Altered sphingomyelin metabolism has been linked to membrane dysfunction and neurodegenerative disease risk in several studies.
多项研究表明,鞘磷脂代谢异常与细胞膜功能障碍以及神经退行性疾病风险有关。

词源 Etymology

该词由 **sphingo-**(源自“sphingolipid/鞘脂”的构词成分,早期与“sphinx/斯芬克斯”相关的命名传统有关,用来指代结构与性质曾让研究者感到“谜样”的脂类)+ myelin(“髓鞘”,源自希腊语词根,指骨髓/髓样物质)组合而成,字面可理解为“与髓鞘相关的鞘脂/磷脂”。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • _Lehninger Principles of Biochemistry_(《雷宁格生物化学原理》):在膜脂与鞘脂章节中讨论鞘磷脂的结构与功能。
  • _Molecular Biology of the Cell_(《细胞的分子生物学》):在细胞膜组成与膜脂多样性内容中提及鞘磷脂。
  • _Biochemistry_(Berg, Tymoczko & Stryer,《生物化学》):在脂质与膜结构相关章节中介绍鞘磷脂及其代谢关联。
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