ArticleCureus2022
Evaluation of Rpoβ Gene and Its Various Mutants in Multidrug-Resistant Tuberculosis Cases by GeneXpert Method.
Article in Cureus, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed, 1 citations in OpenAlex.
- Evaluating the Sensitivity of Different Molecular Techniques for DetectingPolish journal of microbiology · 2023Article
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionIndia is one of the countries in the world which contribute to the global burden of multidrug-resistant tuberculosis (MDR-TB). GeneXpert is a method recommended by the World Health Organization (WHO) that uses five overlapping probes (Probe A to E) to detect mutation in the beta subunit of ribonucleic acid (RNA) polymerase gene (Rpoβ) responsible for rifampicin resistance in
methodAll the pulmonary and extrapulmonary samples received in tuberculosis (TB) laboratory for testing of MTB from January 2018 to December 2020 were analyzed for bacillary load and rifampicin resistance was identified by analyzing the number of missing probes.
resultsDuring the study period, a total of 10,021 samples were tested for MDR-TB. Out of those samples, 2674 samples were positive for MTB of which 2321 were pulmonary samples and 353 were extra-pulmonary samples. Rifampicin resistance was detected in 385 pulmonary samples and 63 extrapulmonary samples. These samples were further differentiated according to the bacillary load. The highest number of mutations was observed in Probe E followed by Probe B, Probe A, and Probe D, and the lowest was observed in Probe C. Also, mutations were associated when all probes were present or a few combinations of probes were missing.
conclusionGeneXpert assay is a rapid molecular method that detected MTB and rifampicin resistance with a two-hour turnaround. It uses molecular beacons to detect mutation in the Rpoβ gene. This study can be useful in analyzing the prevalence and epidemiology of MTB in a particular demographic area and also the addition of a few more probes can enhance the identification of the mutation in other codons and therefore better therapeutic interventions can be developed accordingly.
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