Highly Sensitive Detection of Isoniazid Heteroresistance in Mycobacterium tuberculosis by DeepMelt Assay
نویسندگان
چکیده
منابع مشابه
Rapid in vivo detection of isoniazid-sensitive Mycobacterium tuberculosis by breath test
There is urgent need for rapid, point-of-care diagnostic tools for tuberculosis (TB) and drug sensitivity. Current methods based on in vitro growth take weeks, while DNA amplification can neither differentiate live from dead organisms nor determine phenotypic drug resistance. Here we show the development and evaluation of a rapid breath test for isoniazid (INH)-sensitive TB based on detection o...
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In this study, Substitution at codon Ser315 of katG gene, a reliable marker for isoniazid (INH) resistance was analyzed and compared by three molecular methods such as DNA sequencing, polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) and PCR-single strand conformation polymorphism (PCR-SSCP) in 105 phenotypically resistant isolates obtained from various parts of Ind...
متن کاملMechanisms of heteroresistance to isoniazid and rifampin of Mycobacterium tuberculosis in Tashkent, Uzbekistan.
Heteroresistance of Mycobacterium tuberculosis (MTB) is defined as the coexistence of susceptible and resistant organisms to anti-tuberculosis (TB) drugs in the same patient. Heteroresistance of MTB is considered a preliminary stage to full resistance. To date, no mechanism causing heteroresistance of MTB has been proven. Clinical specimens and cultures from 35 TB patients from Tashkent, Uzbeki...
متن کاملrapid detection of isoniazid resistance in mycobacterium tuberculosis by a single multiplex allele-specific polymerase chain reaction assay
objective: global surveillance has shown that drug resistant (dr) tuberculosis (tb) is widespread. prompt detection of mycobacterium tuberculosis drug resistance is essential for effective control of tb. the most frequent mutations associated with isoniazid (inh) resistance in mycobacterium are substitutions at codons 315 in the katg gene and the maba-inha promoter region (−15). this survey eva...
متن کاملA real-time PCR assay for detection of isoniazid resistance in Mycobacterium tuberculosis clinical isolates.
A real-time PCR genotypic assay was developed for the detection of isoniazid (INH) resistance in Mycobacterium tuberculosis. The assay detects mutations C(-15)T and, possibly, G(-24)T in the regulatory region of the inhA gene and proved as sensitive and specific as nucleotide sequencing in all the clinical isolates tested. Our assays mapped the mutations efficiently in 10 out of 35 resistant is...
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ژورنال
عنوان ژورنال: Journal of Clinical Microbiology
سال: 2018
ISSN: 0095-1137,1098-660X
DOI: 10.1128/jcm.01239-17