V2EX lipid peroxidation

Lipid Peroxidation

定义 Definition

脂质过氧化(lipid peroxidation):指细胞膜等处的脂质(尤其是不饱和脂肪酸)在活性氧/自由基作用下发生的连锁氧化反应,生成过氧化物及其分解产物(如丙二醛 MDA、4HNE),从而导致膜结构受损、蛋白/ DNA 间接损伤,与衰老、炎症及多种疾病过程相关。(该词在生物化学与医学语境中最常见。)

发音 Pronunciation (IPA)

/lpd prksden/

例句 Examples

Lipid peroxidation can damage cell membranes.
脂质过氧化会损伤细胞膜。

During oxidative stress, lipid peroxidation increases and can trigger inflammation and cell death pathways.
在氧化应激期间,脂质过氧化会加剧,并可能触发炎症与细胞死亡相关通路。

词源 Etymology

lipid 来自希腊语 lipos(“脂肪”);peroxidation 由 **per-**(“过度/加强”)+ oxide(“氧化物”)+ -ation(名词后缀,表示“……过程”)构成,合起来字面可理解为“脂质发生的过氧化(强氧化)过程”。

相关词 Related Words

文献与作品 Notable Works

  • Free Radicals in Biology and Medicine(Halliwell & Gutteridge)
  • Lehninger Principles of Biochemistry(Nelson & Cox)
  • Molecular Biology of the Cell(Alberts 等)
  • 经典论文:Halliwell, B. & Gutteridge 相关综述与自由基生物学研究中常讨论该概念
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