Kumar Archit, Singh Mini P, Bansal Reema, Gupta Amod, Ram Jagat, Ratho Radha Kanta
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.
Diagn Microbiol Infect Dis. 2017 Nov;89(3):191-196. doi: 10.1016/j.diagmicrobio.2017.08.002. Epub 2017 Aug 9.
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.
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。