自闭症中的肠道病原体和细胞因子概况:多个生物样本分析
Israa Z Hamad1, Hanan Tariq Subhi2, Fatima Rammadan Abdul1
1Department of Biology, College of Science, Mustansiriyah University, Baghdad, Iraq.
概括
患有自闭症谱系障碍 (ASD) 的儿童表现出高水平的促炎细胞因子和肠道微生物变化. 介质素-6 (IL-6) 和瘤坏死因子-α (TNF-α) 显示为早期ASD诊断的潜在生物标志物具有前途.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 遗传学 遗传学 是一个
背景情况:
- 自闭症谱系障碍 (ASD) 是一种复杂的神经发育状况.
- 免疫调节失调和肠道微生物组的改变越来越多地与ASD的发病有关.
- 确定可靠的自闭症生物标志物对于早期诊断和干预至关重要.
研究的目的:
- 研究ASD儿童的免疫,微生物和基因表达特征.
- 评估血清细胞因子作为ASD生物标志物的诊断潜力.
- 探索微生物失生症和ASD中的免疫变化之间的关系.
主要方法:
- 使用ELISA测量了20名患有自闭症儿童和10名对照儿童的血清细胞因子水平 (IL-1β,IL-6,IL-17A,TNF-α).
- 在血液和唾液样本上使用RT-qPCR进行基因表达分析.
- 用16S rRNA测序分析了便样本的细菌组成.
- 用接收器操作特征 (ROC) 曲线分析来评估诊断准确性.
主要成果:
- 与对照组相比,患有自闭症儿童的IL-1β,IL-6,IL-17A和TNF-α血清水平显著升高 (p <0.01).
- 血清细胞因子水平具有强烈的相关性,ROC分析表明了出色的诊断潜力.
- 细菌分析显示,在ASD患者的便中,存在失生症,埃舍里希亚菌种在便中占主导地位.
- 血液中的基因表达模式反映了血清细胞因子水平,表明系统性免疫参与.
结论:
- 在这个伊拉克队列中,自闭症与显著的促炎性免疫特征和肠道微生物失调症有关.
- 血清IL-6和TNF-α显示出作为ASD早期诊断的有价值生物标志物的潜力.
- 需要进一步的研究来验证这些发现,并探索它们在临床环境中对有针对性的干预措施的有用性.
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