将肠道微生物群失调与阿尔茨海默氏症疾病中的分子途径联系起来
Elnaz Asadifard1, Mahsa Hokmabadi1, Mehrdad Hashemi2
1Medical Genomic Research Center, Tehran Medical Science Islamic Azad University, Tehran, Iran.
Brain research
|September 18, 2024
概括
阿尔茨海默病 (AD) 与肠道细菌的变化有关. 减少有益细菌和改变的大脑路径表明肠道微生物群影响AD进展,突出潜在的治疗点.
科学领域:
- 神经科学是一个神经科学.
- 微生物学 微生物学
- 遗传学 是一个遗传学.
背景情况:
- 阿尔茨海默病 (AD) 是一种神经退行性疾病,其特点是认知能力下降.
- 肠-大脑轴表明肠道微生物群与大脑健康之间存在联系.
- 微生物群的变化可能会通过分子和miRNA途径影响AD.
研究的目的:
- 为了研究肠道微生物群组成和阿尔茨海默病中的分子变化之间的关系.
- 识别与AD相关的特定微生物种类,信号通路和microRNAs (miRNAs).
- 为了探索AD病变的肠-大脑轴.
主要方法:
- 分析了34名AD患者和对照组的微阵列数据,以确定差异表达基因 (DEG).
- 在200名患者的肠道微生物群分析中使用下一代测序 (NGS).
- 使用生物信息学工具进行途径丰富,蛋白质与蛋白质相互作用和miRNA分析.
主要成果:
- 在阿尔茨海默病患者中观察到Clostridia,Firmicutes和Faecalibacterium的显著减少.
- 识别了参与AD的Axon指导,ErbB和MAPK信号通路.
- 在大脑和肠道组织中发现了619个交叉基因,像hsa-let-7c,hsa-mir-125b-2和hsa-mir-145这样的miRNA调节了AD相关的转录因子.
结论:
- 在阿尔茨海默病患者中确认显著的肠道微生物群失调.
- 通过改变信号和miRNA相互作用,证明了肠道微生物群在AD进展中的潜在作用.
- 强调需要基于微生物群的干预措施作为AD的潜在治疗策略.
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