用抗生素耐药的大肠杆菌病原体来殖民肠道导致性结肠炎的疾病严重程度
Asha Yadav1, Pratik Balwant Shinde1, Hari Mohan2
1Laboratory of Enzymology and Gut Microbiology, Department of Microbiology, Maharshi Dayanand University, Rohtak, Haryana, India.
International journal of antimicrobial agents
|July 31, 2024
概括
多组学揭示了埃舍里希亚大肠杆菌病原体和抗菌素耐药性基因在性结肠炎 (UC) 患者中更为普遍. 这项研究探讨了耐药大肠杆菌在UC肠道病变发生中的作用.
科学领域:
- 微生物组研究的研究.
- 肠道健康和疾病
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 大肠杆菌 (Escherichia coli) 是一种常见的肠道细菌,在性结肠炎 (UC) 发病过程中起到尚未探索的作用.
- 性结肠炎是一种具有复杂病因的慢性炎症性肠病.
研究的目的:
- 为了研究大肠杆菌在性结肠炎的发病过程中的作用.
- 分析UC患者的肠道微生物群组成和超肠道抵抗体.
- 了解耐药细菌对UC宿主生理学的影响.
主要方法:
- 对人类肠道微生物群和超肠道抗体的元基因组分析.
- 对大肠杆菌分离物的抗生素敏感性测试.
- 对大肠杆菌进行AMR和毒性因子分析的全基因组测序.
- 来自UC和健康对照的肠道组织的蛋白质组分析.
主要成果:
- 与健康对照组相比,UC患者在他们的超肠抵抗体中表现出显著更高的抗微生物耐药性 (AMR) 基因丰度.
- 大约40%的大肠杆菌分离物是多药耐药 (MDR),UC患者 (43.75%) 的患病率高于健康对照组 (33.33%).
- 在UC肠道组织中抗菌蛋白和炎症媒介体的表达增加表明存在微生物感染.
结论:
- 一种多omics方法为UC病因学提供了更深入的见解,识别了MDR病原体.
- 耐药的大肠杆菌菌株可能在破坏UC患者的肠道环境方面发挥重要作用.
- 这项研究强调了在炎症性肠病中探索病原生物的重要性.
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