A multiplex dot hybridization assay for detection and differentiation of acanthamoeba and herpes keratitis

Ming Tse Kuo, Po Chiung Fang, Hun Ju Yu, Tsae Ling Chao, Chun Chih Chien, Shun Hua Chen, Jen Ren Wang, Shin Ling Tseng, Yu Hsuan Lai, Chang Chun Hsiao, Tsung C. Chang

研究成果: Article同行評審

7 引文 斯高帕斯(Scopus)


PURPOSE. We verified a multiplex dot hybridization (MDH) assay for the rapid detection and differentiation of Acanthamoeba keratitis (AK) and herpes simplex keratitis (HSK). METHODS. Molecular detection of Acanthamoeba and herpes simplex virus in corneal scrapes was performed with the MDH assay and standard diagnostic methods. The experimental group included corneal scrapes (n = 33) from patients with culture- or pathology-confirmed AK (n = 15) and real-time PCR-confirmed HSK (n = 16). The control group included 50 samples from cases of bacterial keratitis (n = 15), fungal keratitis (n = 15), and initially presumed AK (n = 5) or HSK (n = 17) which finally were excluded by culture for Acanthamoeba or by real-time PCR for herpes simplex virus, respectively. Discrepant results between methods were resolved by DNA sequencing of the PCR amplicons. RESULTS. After discrepant analysis, the sensitivity for the diagnosis of AK and HSK was both 93.3% by the MDH assay, while the specificity was 100% for the two types of keratitis. The turnaround time of MDH assay was within a working day using an already prepared array. Two false-negatives (one AK case and one HSK case) were obtained by the MDH assay. CONCLUSIONS. The MDH assay could effectively prevent missed or delayed diagnosis of AK and HSK and has a potential to be adopted in routine clinical practice if the test is commercialized.

頁(從 - 到)2158-2163
期刊Investigative Ophthalmology and Visual Science
出版狀態Published - 2016 四月 1

All Science Journal Classification (ASJC) codes

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

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