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用于诊断感染性葡萄膜炎患者单纯疱疹病毒1型、水痘-带状疱疹病毒、巨细胞病毒和弓形虫的多重实时聚合酶链反应的开发与评估

Development and evaluation of multiplex real-time PCR for diagnosis of HSV-1, VZV, CMV, and Toxoplasma gondii in patients with infectious uveitis.

作者信息

Kumar Archit, Singh Mini P, Bansal Reema, Gupta Amod, Ram Jagat, Ratho Radha Kanta

机构信息

Department of Virology, Postgraduate Institute of Medical Education & Research, Chandigarh, India. 160 012.

Department of Ophthalmology, Postgraduate Institute of Medical Education & Research, Chandigarh, India. 160 012.

出版信息

Diagn Microbiol Infect Dis. 2017 Nov;89(3):191-196. doi: 10.1016/j.diagmicrobio.2017.08.002. Epub 2017 Aug 9.

Abstract

Infectious uveitis is a vision threatening inflammatory ocular disease wherein early diagnosis may prevent the loss of vision. The purpose of this study was to develop a multiplex real-time PCR for the diagnosis of Herpes simplex virus-1, Varicella zoster virus, cytomegalovirus and Toxoplasma gondii in patients with suspected infectious uveitis. A total of 126 intraocular samples (aqueous and vitreous humor) were collected and subjected to multiplex real-time PCR. Overall 26.2% (33/126) patients were found to be positive for one or more of the pathogens tested. The overall positivity for VZV, HSV, CMV and T. gondii was found to be 16 (12.7%), 7 (5.6%), 5 (3.9%), and 9 (7.1%); with mean pathogen load of 5.07×10, 9.5×10, 1.08×10 and 394 (copies/μl) respectively. The development of highly sensitive and specific assay for early differentiation of pathogens is important for the early initiation of treatment thereby preventing irreversible damage to the ocular structures.

摘要

感染性葡萄膜炎是一种威胁视力的炎症性眼病,早期诊断可预防视力丧失。本研究的目的是开发一种多重实时PCR方法,用于诊断疑似感染性葡萄膜炎患者的单纯疱疹病毒1型、水痘带状疱疹病毒、巨细胞病毒和弓形虫。共收集了126份眼内样本(房水和玻璃体),并进行多重实时PCR检测。总体而言,26.2%(33/126)的患者被检测出一种或多种病原体呈阳性。VZV、HSV、CMV和弓形虫的总体阳性率分别为16例(12.7%)、7例(5.6%)、5例(3.9%)和9例(7.1%);病原体平均载量分别为5.07×10、9.5×10、1.08×10和394(拷贝/微升)。开发高灵敏度和特异性的检测方法以早期鉴别病原体,对于早期开始治疗从而防止眼结构的不可逆损伤非常重要。

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