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Detection of pyrazinamide resistance among multidrug resistant tuberculosis in North Karnataka

2025· article· en· W4408965755 on OpenAlexaff
Nivedita R. Dhapalapur, Nirmala Nirmala, A. M.

Bibliographic record

VenueInternational Journal of Research in Medical Sciences · 2025
Typearticle
Languageen
FieldMedicine
TopicTuberculosis Research and Epidemiology
Canadian institutionsEmergent BioSolutions (Canada)
Fundersnot available
KeywordsMedicinePyrazinamideMultiple drug resistanceTuberculosisTraditional medicineVeterinary medicineDrug resistanceMicrobiologyMycobacterium tuberculosisPathologyBiology

Abstract

fetched live from OpenAlex

Background: Pyrazinamide was identified as a result of a structural activity connection with nicotinamide, which exhibits antitubercular properties (PZA). PZA possesses the exceptional capacity to be directly identified in vivo, first in Mycobacterium TB-infected mice and guinea pigs and subsequently in clinical settings. Pyrazinamide (PZA) is a newly developed antituberculosis (anti-TB) medication that is necessary to shorten the duration of TB treatment. Drug-resistant and drug-susceptible TB, including multidrug-resistant TB, require PZA as part of any therapy regimen because it eliminates nonreplicating persisters that other TB treatments are unable to. Methods: All clinical specimens presented to the centre for follow-up or for newly diagnosed cases requiring programmatic treatment of DRTB were included in the research. Salivary or insufficient samples, as well as samples that satisfied the centre’s SOP rejection criteria, were excluded from the research. MGIT-based susceptibility testing was used to evaluate the PZA susceptibility for 609 isolates. Results: Of the 11104 samples, 207 (1.8%) were identified as MDR, 101 (0.9%) as mono-rifampicin resistant, and 619 (5.5%) as mono-isoniazid resistant. The BACTECTM MGITTM 960 technique was then used to cultivate 609 samples. The Bioline TB Ag MPT64 test is a quick way to find the M. tuberculosis complex. PZA susceptibility for 609 isolates was assessed using MGIT-based susceptibility testing. PZA resistance was detected in 194 (31.8%) of the 609 isolates. Conclusions: The results may emphasise the necessity of regular DST for PZA in Indian public health labs and more study to better identify the variables linked to PZA resistance. In order to inform evidence-based approaches for tuberculosis control and care, this study also highlights the significance of ongoing surveillance of medication resistance patterns.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.014
metaresearch head score (Gemma)0.020
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMetaresearch
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.040
Threshold uncertainty score0.992

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0140.020
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0030.002
Science and technology studies0.0000.002
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.057
GPT teacher head0.451
Teacher spread0.395 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2025
Admission routes1
Has abstractyes

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