Detection of Mycobacterium tuberculosis by Using Loop-Mediated Isothermal Amplification Combined with a Lateral Flow Dipstick in Clinical Samples
Joint Authors
Kaewphinit, Thongchai
Arunrut, Narong
Kiatpathomchai, Wansika
Santiwatanakul, Somchai
Jaratsing, Pornpun
Chansiri, Kosum
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-03-05
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Tuberculosis (TB) is a communicable disease caused by the bacterium Mycobacterium tuberculosis (MTB) and is a persistent problem in the developing countries.
Loop-mediated isothermal amplification (LAMP) allows DNA to be amplified rapidly at a constant temperature.
Here, a LAMP method was combined with a chromatographic lateral-flow dipstick (LFD) to detect IS6110 gene of M.
tuberculosis specifically and rapidly.
The reaction was optimized at 63°C for 60 min, and the amplified DNA hybridized to an FITC-labeled oligonucleotide probe for 5 min was detected at the LFD test line 5 min after application.
Excluding the step of DNA extraction, the test results could be generated approximately within 1 h.
In addition to the advantage of short assay time, this technique could avoid the contact of carcinogenic ethidium bromide due to the exclusion of the electrophoresis analysis step.
Furthermore, the data indicated that LAMP-LFD could detect M.
tuberculosis genomic DNA as little as 5 pg.
The technique showed a significant specificity since no cross-hybridization to M.
intracellulare (MIC), M.
fortuitum (MFT), M.
avium (MAV), M.
kansasii (MKS), and M.
gordonae (MGD) genomic DNAs was observed.
In the clinical unknown samples test, the sensitivity of LAMP-LFD was 98.92 % and the specificity was 100 % compared to those of the standard culture assay.
Based on its sensitivity, specificity, rapidity, low cost, and convenience, LAMP-LFD could be applicable for use in both laboratories and epidemiological surveys of MTB.
American Psychological Association (APA)
Kaewphinit, Thongchai& Arunrut, Narong& Kiatpathomchai, Wansika& Santiwatanakul, Somchai& Jaratsing, Pornpun& Chansiri, Kosum. 2013. Detection of Mycobacterium tuberculosis by Using Loop-Mediated Isothermal Amplification Combined with a Lateral Flow Dipstick in Clinical Samples. BioMed Research International،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-1005433
Modern Language Association (MLA)
Kaewphinit, Thongchai…[et al.]. Detection of Mycobacterium tuberculosis by Using Loop-Mediated Isothermal Amplification Combined with a Lateral Flow Dipstick in Clinical Samples. BioMed Research International No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-1005433
American Medical Association (AMA)
Kaewphinit, Thongchai& Arunrut, Narong& Kiatpathomchai, Wansika& Santiwatanakul, Somchai& Jaratsing, Pornpun& Chansiri, Kosum. Detection of Mycobacterium tuberculosis by Using Loop-Mediated Isothermal Amplification Combined with a Lateral Flow Dipstick in Clinical Samples. BioMed Research International. 2013. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-1005433
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1005433