Evidence map›Paper›PMID 21084506›Full record

ArticleJournal of clinical microbiology2011

Rapid first- and second-line drug susceptibility assay for Mycobacterium tuberculosis isolates by use of quantitative PCR.

Suporn Pholwat, Scott Heysell, Suzanne Stroup, Suporn Foongladda, Eric Houpt

Open access · greenAbstract readEvaluation Study
In one paragraph

Article in Journal of clinical microbiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. d-Cycloserine Pharmacokinetics/Pharmacodynamics, Susceptibility, and Dosing Implications in Multidrug-resistant Tuberculosis: A Faustian Deal.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2018
    Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. Rapid molecular phenotypic antimicrobial susceptibility test forbioRxiv : the preprint server for biology · 2023
    Article
  8. Detection ofFrontiers in veterinary science · 2022
    Article
  9. Article
  10. Article
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Suporn PholwatDivision of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA.
Scott Heysell
Suzanne Stroup
Suporn Foongladda
Eric Houpt
University of Virginia · USMahidol University · TH

Funding

Tuberculosis Second Line Drug Susceptibility ChipR01AI093358 · NIAID · UNIVERSITY OF VIRGINIA · PI HOUPT, ERIC R · 2011 to 2015
$4.0M
Targeted DNA extraction for Tuberculosis PCR from sputumR41AI073072 · NIAID · PHTHISIS DIAGNOSTICS · PI HOUPT, ERIC R · 2007 to 2007
$275k
NIAID NIH HHS R01 AI093358NIAID NIH HHS R41 AI073072NIAID NIH HHS R41AI073072
6 · The paper itself

Abstract

The slow turnaround time for Mycobacterium tuberculosis drug susceptibility results is a barrier to care. We developed a rapid quantitative PCR (qPCR)-based phenotypic antimicrobial susceptibility test that utilizes amplification of the M. tuberculosis 16S rRNA gene after 3 days of incubation with antituberculosis drugs. To decrease background from killed organisms, we used propidium monoazide (PMA), a DNA-binding dye that penetrates damaged bacterial cells and renders DNA unamplifiable. M. tuberculosis was cultured in broth media containing PMA with or without drugs for 3 days prior to DNA extraction and real-time PCR amplification. 16S rRNA qPCR exhibited a significant decrease in threshold cycle (C(T)) time values (C(T) control - C(T) drug treated) with drug-susceptible strains compared with resistant strains. Susceptibility data were reported as ΔCT or as 2(Δ)(CT) and with appropriate cutoffs yielded an accuracy of 89 to 100% on 38 susceptible, multidrug-resistant, and extensively drug-resistant strains compared with conventional agar proportion susceptibility results for isoniazid, rifampin, ethambutol, streptomycin, amikacin, kanamycin, capreomycin, ofloxacin, moxifloxacin, ethionamide, para-aminosalicylic acid, linezolid, and cycloserine and compared with Bactec MGIT results for pyrazinamide. This PMA-qPCR assay is useful as a rapid 3-day first- and second-line drug susceptibility test for M. tuberculosis.

Indexed as

Antitubercular AgentsAzidesEnzyme InhibitorsHumansMicrobial Sensitivity TestsMicrobial ViabilityMycobacterium tuberculosisPolymerase Chain ReactionPropidiumRNA, BacterialRNA, Ribosomal, 16STime FactorsTuberculosisAntitubercular AgentsAzidesEnzyme InhibitorsPropidiumpropidium monoazideRNA, BacterialRNA, Ribosomal, 16S

Identifiers

PMID21084506
PMCPMC3020429
OpenAlexW2157058280

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.