循环自由DNA作为球菌病的诊断标记:一个系统性审查和元分析
Xiaoqin Luo1,2, Ping Jiang1, Jideng Ma1
1Qinghai University, Xining, China.
Frontiers in microbiology
|July 18, 2024
概括
这次元分析发现循环的无细胞DNA (cfDNA) 具有高度特异性,但对于诊断球菌病而言不敏感. 需要进行进一步的大规模研究,以提高这种被忽视的热带疾病的cfDNA诊断准确度.
科学领域:
- 寄生虫学和热带医学
- 分子诊断学 分子诊断
- 公共卫生 公共卫生
背景情况:
- 脊髓灰质炎是一种被忽视的动物传染病,没有准确的,早期的,非侵入性的诊断方法.
- 循环的自由DNA (cfDNA) 显示出分子诊断的潜力,但之前的研究尚未得出结论.
- 缺乏对cfDNA诊断精度的系统评估,以检测球菌病的诊断准确性.
研究的目的:
- 进行第一个元分析,评估cfDNA在血,血清和尿液中的诊断准确性,以检测乙核球菌病.
- 系统地评估cfDNA测试在检测球菌病中的性能.
主要方法:
- 在多个数据库 (PubMed,Embase,Cochrane Library,CNKI,WeiPu) 进行系统的文献搜索,截至2024年1月.
- 包括7项研究,包括218名球菌病患者和214名对照.
- 使用RevMan 5.3,Meta-DiSc 1.4,Stata 17.0和R 4.3.1进行敏感性,特异性和异质性评估的统计分析.
主要成果:
- 分析显示,cfDNA的高聚合特异性 (SPE) 为0.99 (95% CI:0.97-0.99),用于诊断球菌病.
- 聚合灵敏度 (SEN) 在0.51 (95% CI:0.45-0.56) 不满意,表明诊断能力有限.
- 其他诊断指标包括PLR为11.82,NLR为0.57,DOR为36.63和AUC为0.98.
结论:
- 循环中的cfDNA显示了对球菌病诊断的高特异性.
- 目前cfDNA测定的综合灵敏度不足,可能是由于研究间显著的异质性.
- 进一步进行大规模的前性研究是必不可少的,以提高基于cfDNA的 echinococcosis 诊断的有效性和准确性.
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