改变的TBI便微生物组是稳定的,功能上是不同的
Richard B Pyles1, Aaron L Miller1, Randall J Urban2
1Department of Pediatrics, The University of Texas Medical Branch, Galveston, TX, United States.
Frontiers in molecular neuroscience
|March 28, 2024
概括
创伤性脑损伤 (TBI) 与长期的肠道微生物组变化有关. 这项研究发现,TBI患者的便微生物组 (FMB) 具有稳定性和失生性,甚至在受伤数年后也会影响代谢途径.
科学领域:
- 微生物学 微生物学
- 神经科学是一个神经科学.
- 胃肠病学 胃肠病学
背景情况:
- 创伤性脑损伤 (TBI) 可以导致慢性健康问题,包括肠道微生物组的改变.
- 最近的研究表明,在TBI之后,胃肠道中出现了急性和长期的失生症,其中微生物组成和功能发生了显著变化.
研究的目的:
- 评估与TBI相关的便微生物群 (FMB) 随着时间的推移的元基因组稳定性.
- 确定特定的细菌基因,通路和核心微生物群,负责TBI诱导的FMB失生症的功能后果.
主要方法:
- 从TBI患者的便样本 (2015年和2020年) 的纵向分析,使用定制的qPCR阵列来测量元基因组稳定性.
- 超转录组分析以识别差异表达的细菌基因和生化途径.
- 生物信息分析用于比较TBI患者和健康对照者的微生物组成和功能概况.
主要成果:
- 在2015年至2020年期间,TBI便微生物组 (FMB) 显示出显著的元基因组稳定性.
- 观察到微生物丰富度的显著差异,其中包括Bacteroides caccae和Collinsella spp.等属. 与对照组相比,在TBI患者中显著改变.
- 功能分析揭示了不同的代谢途径概况,与对照组相比,TBI FMB显示了氨基酸代谢,能源使用和细胞壁合成的改变.
结论:
- 在TBI患者的便微生物组在受伤后的几年内仍然稳定地失生.
- 特定的细菌属和功能途径被持续改变,导致TBI的长期后果.
- 这些发现突出了肠道微生物群作为治疗慢性TBI后续管理的潜在治疗点.
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