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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/42897
Title: Hemoculture and Direct Sputum Detection of mecA-Mediated Methicillin-Resistant Staphylococcus aureus by Loop-Mediated Isothermal Amplification in Combination With a Lateral-Flow Dipstick
Authors: Kawin Nawattanapaiboon
Photchanathorn Prombun
Pitak Santanirand
Apirom Vongsakulyanon
Toemsak Srikhirin
Boonsong Sutapun
Wansika Kiatpathomchai
Mahidol University
Suranaree University of Technology
Thailand National Center for Genetic Engineering and Biotechnology
Keywords: Biochemistry, Genetics and Molecular Biology;Health Professions;Medicine
Issue Date: 1-Sep-2016
Citation: Journal of Clinical Laboratory Analysis. Vol.30, No.5 (2016), 760-767
Abstract: © 2016 Wiley Periodicals, Inc. This study reports loop-mediated isothermal amplification (LAMP) for rapid detection of methicillin-resistant Staphylococcus aureus from direct clinical specimens. Four primers including outer and inner primers were specifically designed on the two target sequences—femB to identify S. aureus and mecA to identify antibiotic-resistant gene. Reference strains including various species of gram-positive/gram-negative isolates were used to evaluate and optimize LAMP assays. The optimum LAMP condition was found at 63°C within 70 min assay time (include hybridization with FITC probe for 5 min and further 5 min for reading the results on the lateral flow dipstick). The detection limits of LAMP for mecA was 10 pg of total DNA or 100 CFU/ml. The LAMP assays were applied to a total of 155 samples of direct DNA extraction from sputum and hemoculture bottles. The sensitivity of LAMP for mecA detection in sputum and hemoculture bottles was 93.3% (28/30) and 100% (52/52), respectively. In conclusion, LAMP assay is an alternative technique for rapid detection of MRSA infection with a technical simplicity and cost-effective method in a routine diagnostic laboratory.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84989245039&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/42897
ISSN: 10982825
08878013
Appears in Collections:Scopus 2016-2017

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