Results 11 to 20 of about 6,468 (198)

pncA mutations in clinical Mycobacterium tuberculosis isolates from Korea [PDF]

open access: yesBMC Infectious Diseases, 2001
Background Pyrazinamide (PZA) is among the first-line drugs for the treatment of tuberculosis. In vitro, it kills semidormant mycobacteria only at low pH.
Kim Cheol Min   +8 more
doaj   +3 more sources

INSERSI GEN pncA KE DALAM PLASMID pGEM-T

open access: yesJurnal Kimia Riset, 2016
. Multidrug-resistant tuberculosis (MDR-TB) is among the most worrisome elements of the pandemic of  antibiotic resistance. As the first line drug, pyrazinamide is often used to treat TB desease so there are many case of TB resistant to pyrazinamide. The
Eli Hendrik Sanjaya
doaj   +3 more sources

Characteristics of pncA mutations in multidrug-resistant tuberculosis in Taiwan [PDF]

open access: yesBMC Infectious Diseases, 2011
Background Pyrazinamide (PZA) is an important first-line drug in multidrug-resistant tuberculosis (MDRTB) treatment. However, the unreliable results obtained from traditional susceptibility testing limits its usefulness in clinical settings.
Lee Yu-Chin   +5 more
doaj   +3 more sources

Pyrazinamide Resistance and pncA Mutation Profiles in Multidrug Resistant Mycobacterium Tuberculosis

open access: yesInfection and Drug Resistance, 2022
Dawei Shi,1,* Qiulong Zhou,2,* Sihong Xu,1 Yumei Zhu,3 Hui Li,4 Ye Xu2 1National Institutes for Food and Drug Control, Institute of Pathogen Biology at the Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People’s ...
Shi D, Zhou Q, Xu S, Zhu Y, Li H, Xu Y
doaj   +3 more sources

Novel Mutations in pncA Gene of Pyrazinamide Resistant Clinical Isolates of Mycobacterium tuberculosis [PDF]

open access: yesScientia Pharmaceutica, 2018
In clinical isolates of Mycobacterium tuberculosis (MTB), resistance to pyrazinamide occurs by mutations in any positions of the pncA gene (NC_000962.3) especially in nucleotides 359 and 374.
Manijeh Kahbazi   +6 more
doaj   +3 more sources

Structure guided prediction of Pyrazinamide resistance mutations in pncA [PDF]

open access: yesScientific Reports, 2020
AbstractPyrazinamide plays an important role in tuberculosis treatment; however, its use is complicated by side-effects and challenges with reliable drug susceptibility testing. Resistance to pyrazinamide is largely driven by mutations in pyrazinamidase (pncA), responsible for drug activation, but genetic heterogeneity has hindered development of a ...
Karmakar, Malancha   +4 more
openaire   +6 more sources

Mechanisms of Antibiotic Resistance and Novel Therapeutic Approaches for <i>Mycobacterium tuberculosis</i>: A Narrative Review With a Focus on Tuberculosis Mutations in Iran. [PDF]

open access: yesHealth Sci Rep
ABSTRACT Background and Aims Tuberculosis, caused by Mycobacterium tuberculosis (M. tuberculosis), is a highly contagious disease and one of the leading causes of mortality globally. The emergence and dissemination of multidrug‐resistant (MDR) strains of M. tuberculosis have become a major concern, especially in developing countries.
Bodaghi AB   +5 more
europepmc   +2 more sources

Comment on 'Systematic Review and Meta-Analysis of Protein Intake to Support Muscle Mass and Function in Healthy Adults' by Nunes et al.-The Authors' Reply. [PDF]

open access: yesJ Cachexia Sarcopenia Muscle
Journal of Cachexia, Sarcopenia and Muscle, Volume 16, Issue 5, October 2025.
Nunes EA   +6 more
europepmc   +2 more sources

pncAMutations in the Specimens from Extrapulmonary Tuberculosis [PDF]

open access: yesTuberculosis and Respiratory Diseases, 2012
Pyrazinamide (PZA) is an effective antitubercular drug that becomes toxic to Mycobacterium tuberculosis when converted to pyrazinoic acid by pyrazinamidase (PZase), encoded by mycobacterial pncA. A strong association was noted between the loss of PZase activity and PZA resistance.
Jaechun Lee   +7 more
openaire   +2 more sources

Analysis of pncA gene expression in pyrazinamide-resistant and multidrug-resistant Mycobacterium tuberculosis [PDF]

open access: yesXin yixue, 2023
Objective To compare the expression levels of pncA gene in pyrazinamide (PZA)-resistant and multidrug-resistant Mycobacterium tuberculosis before and after PZA drug stimulation, and to explore the relationship between PZA-resistant Mycobacterium ...
Wang Nan,, Yang Yu, Deng Ling, Wu Hui, Liu Zhihui, Meng Fanrong
doaj   +1 more source

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