口服酸负荷降低了细菌负担,并提高了尿道感染的小鼠模型中的尿道炎症反应
Aimi D K Hamilton1, Johanna Hornhaver1, Laura V Sparsoe1
1Department of Biomedicine, Aarhus University, Aarhus, Denmark.
Acta physiologica (Oxford, England)
|January 6, 2026
概括
降低尿液pH值可以降低尿路病原性大肠杆菌 (UPEC) 在尿液和脏中的负担,降低炎风险. 酸性尿液增强了促炎性细胞因子的分泌,有助于感染控制.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
背景情况:
- 尿路感染 (UTI) 是常见的,通常是由尿病原性大肠杆菌 (UPEC) 引起的.
- 尿液pH在尿路感染的发展和进展中的作用仍在争论中.
- 这项研究研究了尿液pH对尿路感染进展和传播的影响.
研究的目的:
- 系统地评估尿液pH对尿路感染进展和传播的影响.
- 为了确定改变尿液pH值是否会影响UPEC负担和宿主炎症反应.
主要方法:
- 在用UPEC诱导尿路感染前24小时,雌性Balb/cJRj小鼠被分配到酸负荷 (NH4Cl),基负荷 (NaHCO3) 或对照 (水) 组.
- 测量了尿液pH值,酸参数,炎症性细胞因子水平 (TNF-α,KC,IL-1β,IL-6) 以及尿液和脏中的细菌负担.
主要成果:
- 酸载荷显著降低了尿液pH值,降低了尿液和脏的UPEC负担.
- 基本负载显示出增加尿液和脏中UPEC负担的趋势.
- 酸性负荷导致尿液中炎症性细胞因子 (TNF-α,KC,IL-1β,IL-6) 的水平升高.
结论:
- 增加的尿酸有效地减少了尿路和脏中的UPEC负担.
- 降低尿液pH值可以降低发炎的风险.
- 酸性尿液增强了促炎性细胞因子的分泌,有助于感染控制.
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