V2EX glycosaminoglycan

Glycosaminoglycan

定义 Definition

糖胺聚糖:一种由重复二糖单位组成的长链多糖,通常带负电,广泛存在于结缔组织和细胞外基质中,能结合水分并为组织提供润滑、弹性与支撑(如透明质酸、肝素、硫酸软骨素等都属于或相关)。

发音 Pronunciation (IPA)

/lakosmnlakn/

例句 Examples

Glycosaminoglycans help keep cartilage hydrated.
糖胺聚糖有助于保持软骨的含水量。

In the extracellular matrix, glycosaminoglycans interact with proteins to influence cell signaling and tissue mechanics.
在细胞外基质中,糖胺聚糖会与蛋白质相互作用,从而影响细胞信号传导和组织的力学性质。

词源 Etymology

该词由三个部分构成:glyco-(与糖/甜相关,源自希腊语 glykys “甜”)、amino-(氨基)、glycan(糖链/多糖)。合起来字面意思接近“含氨基的糖类长链”,用于描述这类常含氨基糖(如氨基葡萄糖)的多糖聚合物。早期也常用旧称 mucopolysaccharide(黏多糖),后来更强调其化学结构而改用 glycosaminoglycan

相关词 Related Words

文学与经典作品 Literary & Notable Works

  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》)中关于细胞外基质与多糖部分常出现该术语。
  • Molecular Biology of the Cell(《细胞的分子生物学》)讨论细胞外基质、蛋白聚糖与信号调控时使用该词。
  • Robbins & Cotran Pathologic Basis of Disease(《罗宾斯基础病理学》)在黏多糖贮积症等相关病理内容中出现该词。
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