Evidence map›Paper›PMID 25114009›Full record

ArticleThe American journal of tropical medicine and hygiene2014

Standardization of a TaqMan-based real-time PCR for the detection of Mycobacterium tuberculosis-complex in human sputum.

Francesca Barletta, Koen Vandelannoote, Jimena Collantes, Carlton A Evans, Jorge Arévalo, Leen Rigouts

Abstract readEvaluation Study
In one paragraph

Article in The American journal of tropical medicine and hygiene, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Rapid detection ofThe Pan African medical journal · 2020
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  13. Optimized Lysis-Extraction Method Combined WithFrontiers in microbiology · 2018
    Article
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  15. Review
  16. 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

6 authors.

Francesca BarlettaInstituto de Medicina Tropical Alexander von Humboldt, Lima, Peru; Universidad Peruana Cayetano Heredia, Lima, Perú; Infectious Diseases and Immunity, Imperial College London, and Wellcome Trust Imperial College Centre for Global Health, London,United Kingdom; IFHAD: Innovation For Health And Development, London, United Kingdom; Institute of Tropical Medicine, Antwerp-Belgium; University of Antwerp, Belgium francescabarletta@yahoo.es.
Koen VandelannooteInstituto de Medicina Tropical Alexander von Humboldt, Lima, Peru; Universidad Peruana Cayetano Heredia, Lima, Perú; Infectious Diseases and Immunity, Imperial College London, and Wellcome Trust Imperial College Centre for Global Health, London,United Kingdom; IFHAD: Innovation For Health And Development, London, United Kingdom; Institute of Tropical Medicine, Antwerp-Belgium; University of Antwerp, Belgium.
Jimena CollantesInstituto de Medicina Tropical Alexander von Humboldt, Lima, Peru; Universidad Peruana Cayetano Heredia, Lima, Perú; Infectious Diseases and Immunity, Imperial College London, and Wellcome Trust Imperial College Centre for Global Health, London,United Kingdom; IFHAD: Innovation For Health And Development, London, United Kingdom; Institute of Tropical Medicine, Antwerp-Belgium; University of Antwerp, Belgium.
Carlton A EvansInstituto de Medicina Tropical Alexander von Humboldt, Lima, Peru; Universidad Peruana Cayetano Heredia, Lima, Perú; Infectious Diseases and Immunity, Imperial College London, and Wellcome Trust Imperial College Centre for Global Health, London,United Kingdom; IFHAD: Innovation For Health And Development, London, United Kingdom; Institute of Tropical Medicine, Antwerp-Belgium; University of Antwerp, Belgium.
Jorge ArévaloInstituto de Medicina Tropical Alexander von Humboldt, Lima, Peru; Universidad Peruana Cayetano Heredia, Lima, Perú; Infectious Diseases and Immunity, Imperial College London, and Wellcome Trust Imperial College Centre for Global Health, London,United Kingdom; IFHAD: Innovation For Health And Development, London, United Kingdom; Institute of Tropical Medicine, Antwerp-Belgium; University of Antwerp, Belgium.
Leen RigoutsInstituto de Medicina Tropical Alexander von Humboldt, Lima, Peru; Universidad Peruana Cayetano Heredia, Lima, Perú; Infectious Diseases and Immunity, Imperial College London, and Wellcome Trust Imperial College Centre for Global Health, London,United Kingdom; IFHAD: Innovation For Health And Development, London, United Kingdom; Institute of Tropical Medicine, Antwerp-Belgium; University of Antwerp, Belgium.

Funding

Medical Research Council MR/K007467/1Wellcome Trust
6 · The paper itself

Abstract

Real-time polymerase chain reaction (qPCR) was optimized for detecting Mycobacterium tuberculosis in sputum. Sputum was collected from patients (N = 112) with suspected pulmonary tuberculosis, tested by smear microscopy, decontaminated, and split into equal aliquots that were cultured in Löwenstein-Jensen medium and tested by qPCR for the small mobile genetic element IS6110. The human ERV3 sequence was used as an internal control. 3 of 112 (3%) qPCR failed. For the remaining 109 samples, qPCR diagnosed tuberculosis in 79 of 84 patients with culture-proven tuberculosis, and sensitivity was greater than microscopy (94% versus 76%, respectively, P < 0.05). The qPCR sensitivity was similar (P = 0.9) for smear-positive (94%, 60 of 64) and smear-negative (95%, 19 of 20) samples. The qPCR was negative for 24 of 25 of the sputa with negative microscopy and culture (diagnostic specificity 96%). The qPCR had 99.5% sensitivity and specificity for 211 quality control samples including 84 non-tuberculosis mycobacteria. The qPCR cost ∼5US$ per sample and provided same-day results compared with 2-6 weeks for culture.

Indexed as

DNA, BacterialDNA PrimersHumansMycobacterium tuberculosisQuality ControlReal-Time Polymerase Chain ReactionReference StandardsSensitivity and SpecificitySputumTuberculosis, PulmonaryDNA, BacterialDNA Primers

Identifiers

PMID25114009
PMCPMC4183392

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.