Evidence map›Paper›PMID 25674236›Full record

ArticleInternational journal of clinical and experimental pathology2014

Protein-coding housekeeping gene Rv2461c can be used as an amplification target in loop-mediated isothermal amplification assay for the detection of Mycobacterium tuberculosis in sputum samples.

Dairong Li, Jianing Zhao, Xiaoping Nie, Tao Wan, Wenchun Xu, Yong Zhao

Open access · greenAbstract read
In one paragraph

Article in International journal of clinical and experimental pathology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact, top 77% 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

2 citing papers in PubMed, 1 synthesis or guideline pooled it, 2 citations in OpenAlex.

  1. Pooled it
  2. Comparative Proteomic Profiling ofJournal of global infectious diseases
    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 at 3 institutions in 1 country.

Dairong LiDepartment of Respiratory Medicine, The First Affiliated Hospital of Chongqing Medical University Chongqing, P. R. China.
Jianing ZhaoKey Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University Chongqing, P. R. China.
Xiaoping NieChongqing Public Health Medical Center Chongqing, P. R. China.
Tao WanDepartment of Respiratory Medicine, The First Affiliated Hospital of Chongqing Medical University Chongqing, P. R. China.
Wenchun XuKey Laboratory of Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University Chongqing, P. R. China.
Yong ZhaoDepartment of Pathology, Chongqing Medical University Chongqing, P. R. China.
Chongqing Medical University · CNThe Affiliated Yongchuan Hospital of Chongqing Medical University · CNChongqing Public Health Medical Center · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The study is to explore the potential of the conserved Rv2461c gene as a biomarker for Tuberculosis (TB) diagnosis. The conservation of the hypothetical genes was evaluated in this study using multiple sequence alignment and phylogenetic analysis. The conservation of Rv2461c coding gene was evaluated by polymerase chain reaction using six reference strains of M. tuberculosis complex (MTC), 156 M. tuberculosis clinical isolates, 25 species of non-tuberculosis mycobacteria (NTM), and 10 non-mycobacterial species. A total of 126 clinical sputum specimens were collected from patients with respiratory symptoms, including 79 specimens from suspected TB patients, and 47 specimens from patients with respiratory diseases other than TB. Genomic DNAs were extracted and subject to polymerase chain reaction for nucleic acid amplification test. In addition, we successfully developed loop-mediated isothermal amplification (LAMP) technology for rapid detection of M. tuberculosis in sputum specimens. The sensitivity and specificity of LAMP assay were evaluated for the detection of M. tuberculosis. Phylogenetic analysis of the clpP sequences revealed that the Mycobacterium strains were split into two major clusters: i) MTC; ii) NTM strains and M. leprae. During the evaluation of the conservation of Rv2461c coding gene, all MTC strains yielded positive results, and no false-positive results were observed in NTM or other bacterial species. LAMP analysis showed high sensitivity and specificity (84.8% and 95.7%, respectively) for the detection of M. tuberculosis from sputum. Our result indicated that Rv2461c coding gene was an efficient and promising alternative nucleic acid amplification test target for the detection of M. tuberculosis.

Indexed as

Bacterial ProteinsHumansMycobacterium tuberculosisNucleic Acid Amplification TechniquesSensitivity and SpecificitySputumTuberculosis, PulmonaryBacterial ProteinsRv2468c protein, Mycobacterium tuberculosisclpP genesdiagnostic markergene amplificationloop-mediated isothermal amplificationMycobacterium tuberculosisRv2461c gene

Identifiers

PMID25674236
PMCPMC4313969
OpenAlexW2322666114

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.