致死性一氧化碳中毒中的代谢模式:法医毒理学的视角
Wilmar Alexander Ariza-Garcia1, Daniel Pardo-Rodriguez2, Gonzalo Taborda-Ocampo3
1Universidad Tecnológica de Pereira, Pereira, Risaralda, CPA 660003, Colombia; Instituto Nacional de Medicina Legal y Ciencias Forenses (INML y CF), Pereira, Risaralda, 660001, Colombia.
Forensic science international
|September 7, 2025
概括
一氧化碳 (CO) 中毒导致广泛的代谢干扰. 新的脂质组生物标志物,如18:2卡尼丁,显示出对诊断致命的CO中毒病例的前景.
科学领域:
- 法医毒理学 法医毒理学
- 代谢学 代谢学 代谢学
- 利皮多米克 (Lipidomics) 是一种消化剂.
背景情况:
- 一氧化碳 (CO) 中毒是一个重要的公共卫生问题,死亡率很高.
- 诊断挑战来自于CO的特性和不可靠的碳氧血球蛋白 (COHb) 水平,特别是死后.
- 非向的代谢和脂质组学可以揭示CO中毒的系统生化变化.
研究的目的:
- 在致命的一氧化碳中毒病例中表征系统生化变化.
- 为了确定潜在的新生物标志物来诊断CO中毒.
- 为了研究二氧化碳毒性对代谢途径的影响.
主要方法:
- 采用非向的代谢学和脂质学分析.
- 综合的代谢和脂质组数据,以确定失调的途径.
- 评估了改变代谢物作为潜在生物标记物的区分能力.
主要成果:
- 在与脂质相关的途径中观察到显著的失调,包括类固醇生物合成,脂肪酸代谢和脂代谢.
- 已注意到高度不和脂肪酸 (HUFA) 的生物合成受损,可能会影响膜完整性.
- 卡尼丁18:2 (CAR 18:2) 在CO中毒和对照病例之间显示出强大的区分能力 (AUC = 0.846).
- 利索酸丁胆18:2 (LPC 18:2) 和基米林44:1;O2 (SM 44:1;O2) 被确定为有前途的生物标志物候选物.
结论:
- 一氧化碳的毒性会引起广泛的代谢干扰,影响能量稳态和脂质信号传递.
- 向性脂管学为开发致命CO中毒的替代法医生物标志物提供了一个有希望的方法.
- 卡尼丁18:2,LPC18:2和SM44:1;O2是用于CO中毒诊断的潜在新生物标志物.
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