使用数字聚合酶链反应作为肝纤维化标志物的Streptococcus salivarius的量化
Shuichiro Iwasaki1, Akira Také2, Haruki Uojima1,3
1Department of Gastroenterology, Kitasato University School of Medicine, Sagamihara 252-0375, Kanagawa, Japan.
World journal of hepatology
|May 1, 2025
概括
通过数字PCR量化Streptococcus salivarius负载是慢性肝病患者肝纤维化的新生物标志物. 较高的细菌负载与晚期纤维化相关,提供新的诊断潜力.
科学领域:
- 微生物学 微生物学
- 胃肠病学 胃肠病学
- 生物标志物发现发现
背景情况:
- 杆菌生产尿酶,可能有助于肠道氨的生产.
- 在患有最小肝脑病变的患者中观察到增加了S. salivarius的丰度.
- 在慢性肝病 (CLD) 中,特定的肠道细菌和纤维化进展之间的联系需要进一步调查.
研究的目的:
- 通过使用数字PCR (dPCR) 来确定S. salivarius的量化,作为CLD肝纤维化标志物.
- 评估dPCR用于检测S. salivarius在CLD患者中的诊断效用.
主要方法:
- 对52名CLD患者的回顾性分析.
- 使用数字PCR (dPCR) 来量化便样本中的S. salivarius细菌负载.
- 根据病理发现,肝纤维化分为轻度或晚期.
主要成果:
- 该dPCR试验显示,使用tnpA基因对S. salivarius检测具有高灵敏度.
- 与轻度纤维化 (1.9副本/μL) 相比,晚期纤维化 (7.4副本/μL) 的患者中,S. salivarius的中位数负载显著更高.
- 在晚期纤维化病例中,增加S. salivarius定量更为频繁 (P = 0.032).
结论:
- 基于数字PCR对S. salivarius负载的量化作为一个有价值的生物标志物用于CLD肝纤维化.
- 这种方法显示出在慢性肝病中进行非侵入性纤维化评估的潜力.
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