V2EX short-chain fatty acid

Short-Chain Fatty Acid

释义 Definition

短链脂肪酸:指碳链较短(通常为 26 个碳原子)的脂肪酸,主要由肠道微生物发酵膳食纤维产生,常见的有 乙酸(acetate)丙酸(propionate)丁酸(butyrate)。它们与肠道健康、能量代谢和免疫调节等有关。

发音 Pronunciation (IPA)

/rt ten fti sd/

例句 Examples

Short-chain fatty acids are produced when gut bacteria ferment fiber.
短链脂肪酸是在肠道细菌发酵膳食纤维时产生的。

Dietary changes can shift the gut microbiome and alter the balance of short-chain fatty acids, influencing inflammation and metabolic health.
饮食改变会影响肠道微生物群,从而改变短链脂肪酸的平衡,进而影响炎症与代谢健康。

词源 Etymology

这是一个组合术语short-chain(短链的)+ fatty acid(脂肪酸)。其中 fatty acid 源自 fat(脂肪)与 acid(酸),用于描述具有酸性官能团、常见于脂类中的有机酸;short-chain 用来强调其碳链长度较短,以区别 medium-chain(中链)和 long-chain(长链)脂肪酸。该术语在营养学、生理学与微生物学文献中非常常见。

相关词 Related Words

文学与著作中的使用 Literary Works

该术语更常见于科研与科普著作而非传统小说诗歌中,常见出处包括:

  • Gut: The Inside Story of Our Body’s Most Underrated Organ(Giulia Enders)中讨论肠道细菌及其代谢产物时会涉及短链脂肪酸概念。
  • The Good Gut(Justin & Erica Sonnenburg)在讲述膳食纤维、肠道微生物与代谢健康的章节中使用并解释短链脂肪酸。
  • The Mind-Gut Connection(Emeran Mayer)在肠-脑轴与肠道代谢物相关内容中提及短链脂肪酸。
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