Colorimetric detection of SARS-CoV-2 by uracil-DNA glycosylase (UDG) reverse transcription loop-mediated isothermal amplification (RT-LAMP)

Autor: Meng Yee Lai, Fatma Diyana Mohd Bukhari, Nur Zulaikha Zulkefli, Ilyiana Ismail, Nur Izati Mustapa, Tuan Suhaila Tuan Soh, Afifah Haji Hassan, Kalaiarasu M Peariasamy, Yee Leng Lee, Jeyanthi Suppiah, Ravindran Thayan, Yee Ling Lau
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: International Journal of Infectious Diseases, Vol 120, Iss , Pp 132-134 (2022)
Druh dokumentu: article
ISSN: 1201-9712
DOI: 10.1016/j.ijid.2022.04.036
Popis: ABSTRACT: Objectives: Preventing reverse transcription loop-mediated isothermal amplification (RT-LAMP) carryover contamination could be solved by adding deoxyuridine triphosphate (dUTP) and uracil-DNA glycosylase (UDG) into the reaction master mix. Methods: RNA was extracted from nasopharyngeal swab samples by a simple RNA extraction method. Results: Testing of 77 samples demonstrated 91.2% sensitivity (95% confidence interval [CI]: 78–98.2%) and 100% specificity (95% confidence interval: 92–100%) using UDG RT-LAMP. Conclusion: This colorimetric UDG RT-LAMP is a simple-to-use, fast, and easy-to-interpret method, which could serve as an alternative for diagnosis of SARS-CoV-2 infection, especially in remote hospitals and laboratories with under-equipped medical facilities.
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