V2EX lipopolysaccharide

Lipopolysaccharide

释义 Definition

脂多糖:一种位于革兰氏阴性菌外膜的关键成分,由脂质(脂A)+ 多糖(核心寡糖与O抗原)组成。它常被称为内毒素(endotoxin),能强烈激活人体免疫反应,过度时可引发炎症风暴、发热,严重可导致脓毒症相关反应。(该词在科研语境中也常简称为 LPS。)

发音 Pronunciation (IPA)

/lppliskrad/

例句 Examples

Lipopolysaccharide is found on the outer membrane of Gram-negative bacteria.
脂多糖存在于革兰氏阴性菌的外膜上。

Exposure to lipopolysaccharide can trigger a strong immune response, which researchers often use to model inflammation in experiments.
接触脂多糖可能引发强烈的免疫反应,研究人员常用它在实验中建立炎症模型。

词源 Etymology

lipopolysaccharide 是由三部分构成的科学复合词:**lipo-**(脂、脂类)+ poly-(多)+ saccharide(糖、糖类)。直译即“脂类-多糖”,反映其化学组成:一端是脂质结构(脂A),另一端是多糖链(包括O抗原等)。

相词 Related Words

文学作品 Literary Works

该词属于现代微生物学与免疫学中的高专门度术语,更多出现在学术论文、教材与科普中,而较少作为显著词汇出现在传统文学经典中。常见载体包括:

  • Janeway’s Immunobiology(《Janeway 免疫生物学》)
  • Medical Microbiology(医学微生物学教材,如 Murray 等版本)
  • Principles of Microbiology(微生物学原理类教材与参考书)
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