哥伦比亚中部的Clostridium perfringens:频率,毒素基因和危险因素
Anny Camargo1,2, Laura Bohorquez1, Diana Paola López2
1Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia.
Gut pathogens
|July 4, 2024
概括
常见的细菌Clostridium perfringens在哥伦比亚人群中经常被检测到,即使是没有症状的人. 糖尿病等疾病增加了C. perfringens检测的风险,这表明需要有针对性的监测.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 分子流行病学分子流行病学
背景情况:
- 杆菌 (Clostridium perfringens) 是一种机会性病原体,会导致人类和动物的肠道疾病.
- 了解其流行率和毒性因素对于公共卫生至关重要.
研究的目的:
- 为了确定Clostridium perfringens及其毒素基因在哥伦比亚博亚卡的胃肠道症状和没有胃肠道症状的个体便样本中的频率.
- 确定与C. perfringens携带和疾病相关的风险因素.
主要方法:
- 聚合酶链反应 (PCR) 用于检测C. perfringens (16S-rRNA) 和114个便样本中的α毒素 (cpa) 基因.
- 积极的样本被培养,并进一步分析了毒素编码基因 (cpb2,cpe,cpb) 的分离物.
- 分析了77个人的社会人口统计和临床数据,以确定风险因素.
主要成果:
- 对C. perfringens的总体发生率为19.3%.
- 在有症状的个体中,检测率为16.6%,在无症状个体中为21.2%.
- 所有分离物体都携带cpa基因;cpb2在10.7%中被发现.
- 糖尿病和自身免疫性疾病与C. perfringens检测的增加显著相关 (aOR 8.41).
结论:
- 包括cpb2基因在内的Clostridium perfringens在哥伦比亚博亚卡的无症状个体中普遍存在.
- 特定的慢性疾病,如糖尿病,增加了C. perfringens检测的风险.
- 这些发现支持基于分子流行病学的有针对性的预防和积极监测策略的开发.
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