Reverse transcriptase loop-mediated isothermal amplification (RT-LAMP)-based diagnosis: A potential alternative to quantitative real-time PCR based detection of the novel SARS-COV-2 virus

Saudi Journal of Biological Sciences

Muhammad Faraz Arshad Malik¹  Farhan Haq²  Aroosha Raja²  Imran Shabbir³  Mohammed S. Almuhayawi⁴  Hanaa Tashkandi⁵  Turki Al Amri⁶  Aamer Ikram⁷  Adnan Khurshid⁷  Salmaan Sharif⁷  Muhammad Salman⁷  Abdul Ahad⁷  Muhammad Suleman Rana⁷  Nazish Badar⁷  Steve Harakeh⁸  Esam I. Azhar⁸ 

[1] Yousef Abdul Latif Jameel Scientific Chair of Prophetic Medicine Application, FM, KAU, Saudi Arabia;Department of Biosciences, COMSATS University of Islamabad, Pakistan;Department of Biotechnology and Bioinformatics, International Islamic University, Islamabad, Pakistan;Department of Microbiology and Parasitology, FM, KAU, Saudi Arabia;Department of Surgery, Faculty of Medicine (FM), King Abdulaziz University (KAU), Jeddah, Saudi Arabia;Family and Community Medicine Department, Faculty of Medicine in Rabigh, KAU, Jeddah, Saudi Arabia;National Institute of Health, Islamabad, Pakistan;Special Infectious Agents Unit, King Fahd Medical Research Center, Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, KAU, Saudi Arabia;

关键词: SARS-CoV-2;    COVID-19;    RT-LAMP;    qRT-PCR;    Detection;    RNA isolation;   

DOI  :  

来源: DOAJ

【 摘 要 】

The sudden outbreak of the novel Coronavirus infectious disease (COVID-19) resulted in significant challenges to global health systems. One of the primary challenges is rapid, reliable, and accurate detection of the severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) virus among the suspected COVID-19-infected individuals. At present, quantitative real-time PCR (qRT-PCR) is a widely used diagnostic method. However, it requires expensive instruments and expertise in the interpretation of results. These constraints reflect the significant need for the development of alternative diagnostic options.This study will validate the use and efficiency of the reverse transcriptase loop-mediated isothermal amplification (RT-LAMP) assay as a potential alternative for the detection of COVID-19. For this purpose, a cohort of 297 suspected COVID-19 patients was tested using both the RT-LAMP assay and the conventional RT-PCR method. For the RT-LAMP assay, three genes (orf-1ab, N, and S) were identified as the target sites for the detection of COVID-19. Based on a comparative assessment, 117 out of 124 positive COVID-19 cases were observed using the RT-LAMP technique with an overall 91.45% sensitivity. Interestingly, where a consensus on 163 individuals free of SARS-Cov-2 was observed, RT-LAMP specificity was 90%. Based on these findings, the robustness of the technique, and the reduced dependency on expensive instrumentation, RT-LAMP-based COVID-19 detection is strongly recommended as a potential alternative assay.

【 授权许可】

Unknown