代谢学有效地在外周血液中区分单胞胎双胞胎
Kuo Zeng1,2,3,4, Jiang Du5, Yun-Zhou Chen1,2,3
1School of Forensic Medicine, China Medical University, No.77, Puhe Road, Shenbei New District, Shenyang, 110122, P.R. China.
International journal of legal medicine
|June 10, 2024
概括
现在可以使用血液中独特的代谢物概况来区分同卵双胞胎 (MZ). 环境和生活方式的差异会产生可检测的代谢变异,有助于法医识别.
科学领域:
- 法医科学 法医科学 法医科学
- 代谢学 代谢学 代谢学
- 蛋白质组学是指蛋白质组学.
背景情况:
- 传统的法医STR类型识别无法区分单胞胎 (MZ) 双胞胎,因为它们具有相同的遗传特征.
- 双胞胎MZ经常表现出生活方式和环境差异,导致其生物特征的变化.
- 代谢和蛋白质概况受到个体特征和外部因素的影响,这为双胞胎歧视提供了潜力.
研究的目的:
- 探索代谢学和蛋白质学在区分MZ双胞胎中的实用性.
- 在外周血液中识别特定的代谢物和蛋白质,可以作为MZ双胞胎识别的生物标志物.
- 评估环境和生活方式因素对MZ双胞胎的代谢和蛋白质概况的影响.
主要方法:
- 从四对MZ双胞胎的外周血液样本中分析代谢物和蛋白质.
- 利用代谢学来识别和量化已知的代谢物.
- 采用蛋白质组学来分析血清和全血中的蛋白质表达.
主要成果:
- 鉴定了1749种已知的代谢物和622种蛋白质.
- 在MZ双胞胎中观察到较小的双胞胎内代谢差异和较大的双胞胎内代谢差异.
- 四种特定的外源代谢物 (甲基皮科林酸盐,阿塞苏尔法姆,帕拉桑丁,基胺硫酸) 在所有双胞胎对中都呈现一致的差异.
- 在血清中发现了不同的蛋白质配置,但在全血中没有.
结论:
- 不同的代谢物概况,受环境和生活方式的影响,在法医环境中显示为MZ双胞胎识别的生物标志物.
- 代谢学提供了一种可行的方法来补充传统方法来区分MZ双胞胎.
- 对特定代谢物标记物的进一步研究可以提高法医识别能力.
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