Results 21 to 30 of about 12,768 (245)

katG (SER 315 THR) Gene Mutation in Isoniazid Resistant Mycobacterium Tuberculosis

open access: bronzeKathmandu University Medical Journal, 2012
Background Isoniazid (INH) together with Rifampicin (RFP) forms the cornerstone of a short chemotherapy course for tuberculosis (TB) treatment. Mutation at codon 315 of katG gene is most prevalent in isoniazid resistant Mycobacterium tuberculosis (MTB) and is high in area with high TB incidence.
Sujan Babu Marahatta   +10 more
openalex   +4 more sources

Three-Dimensional Model and Molecular Mechanism of Mycobacterium tuberculosis Catalase-Peroxidase (KatG) and Isoniazid-Resistant KatG Mutants [PDF]

open access: yesMicrobial Drug Resistance, 2004
Mycobacterium tuberculosis KatG enzyme functions both as catalase for removing hydrogen peroxide (H 2 O 2 ) and as peroxidase for oxidating isoniazid (INH) to active form of anti-tuberculosis drug. Although mutations in
L, Mo   +7 more
openaire   +2 more sources

Mutation of katG in a clinical isolate of Mycobacterium tuberculosis: effects on catalase-peroxidase for isoniazid activation [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2016
Mutations in katG gene are often associated with isoniazid (INH) resistance in Mycobacterium tuberculosis strain. This research was perfomed to identify the katG mutation in clinical isolate (L8) that is resistant to INH at 1 μg/ml.
Purkan,   +5 more
doaj   +1 more source

Non-lethal exposure to H2O2 boosts bacterial survival and evolvability against oxidative stress [PDF]

open access: yes, 2020
Unicellular organisms have the prevalent challenge to survive under oxidative stress of reactive oxygen species (ROS) such as hydrogen peroxide (H2O2). ROS are present as by-products of photosynthesis and aerobic respiration.
Eravci, Murat   +7 more
core   +1 more source

Large-scale genomic analysis of Mycobacterium tuberculosis reveals extent of target and compensatory mutations linked to multi-drug resistant tuberculosis

open access: yesScientific Reports, 2023
Resistance to isoniazid (INH) and rifampicin (RIF) first-line drugs in Mycobacterium tuberculosis (Mtb), together called multi-drug resistance, threatens tuberculosis control.
Gary Napier   +3 more
doaj   +1 more source

Four decades of transmission of a multidrug-resistant Mycobacterium tuberculosis outbreak strain [PDF]

open access: yes, 2015
The rise of drug-resistant strains is a major challenge to containing the tuberculosis (TB) pandemic. Yet, little is known about the extent of resistance in early years of chemotherapy and when transmission of resistant strains on a larger scale became a
Balloux, Francois   +6 more
core   +4 more sources

Importance of Detection of Isoniazid and Rifampicin Mono Drug Resistance and Determining Rate of MDR-TB in Smear Positive Sputum Samples from a Tertiary Care Hospital of West U.P. India

open access: yesJournal of Pure and Applied Microbiology, 2019
Anti-tubercular therapy is one of the effective strategies used to control tuberculosis, so, a planned and accurate treatment regimen is of utmost importance, but number of cases are being treated as MDR on the basis of rifampicin mono resistance.
Sana Nudrat, Umar Farooq, Mazhar Maqsood
doaj   +1 more source

Mutations in rpoB and katG genes of multidrug resistant mycobacterium tuberculosis undetectable using genotyping diagnostic methods

open access: yesThe Pan African Medical Journal, 2017
INTRODUCTION: Tuberculosis remains the leading causes of death worldwide with frequencies of mutations in rifampicin and isoniazid resistant Mycobacterium tuberculosis isolates varying according to geographical location.
Faustinos Tatenda Takawira   +4 more
doaj   +1 more source

Role of KatG in Francisella tularensis Susceptibility to Resazurin.

open access: diamondProceedings of the West Virginia Academy of Science, 2023
The CDC classifies Francisella tularensis as a Category A bioterrorism agent. Due to the risk of potential release of antibiotic-resistant F. tularensis strains, new therapeutics against F. tularensis must be developed.  Resazomycins are resazurin (Rz)-based compounds that exhibit antimicrobial activity against F.
Rori Schreiber
openalex   +3 more sources

Machine learning and structural analysis of Mycobacterium tuberculosis pan-genome identifies genetic signatures of antibiotic resistance. [PDF]

open access: yes, 2018
Mycobacterium tuberculosis is a serious human pathogen threat exhibiting complex evolution of antimicrobial resistance (AMR). Accordingly, the many publicly available datasets describing its AMR characteristics demand disparate data-type analyses ...
Anand, Amitesh   +11 more
core   +2 more sources

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