Evidence map›Paper›PMID 32218787›Full record

ArticleFrontiers in immunology2020

Matrix Metalloproteinases and Tissue Inhibitors of Metalloproteinases Are Potential Biomarkers of Pulmonary and Extra-Pulmonary Tuberculosis.

Gokul Raj Kathamuthu, Nathella Pavan Kumar, Kadar Moideen, Dina Nair, Vaithilingam V Banurekha, Rathinam Sridhar, Dhanaraj Baskaran, Subash Babu

Open access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
0.6field-weighted citation impact, top 19% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Post-tuberculosis lung disease in treated extra-pulmonary tuberculosis.American journal of respiratory and critical care medicine · 2026
    Article
  5. Host- and pathogen-related determinants of pulmonaryEuropean respiratory review : an official journal of the European Respiratory Society · 2026
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  15. An Improved Diagnostic of theDiagnostics (Basel, Switzerland) · 2022
    Article
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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

8 authors at 3 institutions in 2 countries.

Gokul Raj KathamuthuNational Institute for Research in Tuberculosis, National Institute of Health, International Center for Excellence in Research, Chennai, India.
Nathella Pavan KumarNational Institute for Research in Tuberculosis, National Institute of Health, International Center for Excellence in Research, Chennai, India.
Kadar MoideenNational Institute for Research in Tuberculosis, National Institute of Health, International Center for Excellence in Research, Chennai, India.
Dina NairNational Institute for Research in Tuberculosis (NIRT), Chennai, India.
Vaithilingam V BanurekhaNational Institute for Research in Tuberculosis (NIRT), Chennai, India.
Rathinam SridharGovernment Stanley Medical Hospital, Chennai, India.
Dhanaraj BaskaranNational Institute for Research in Tuberculosis (NIRT), Chennai, India.
Subash BabuNational Institute for Research in Tuberculosis, National Institute of Health, International Center for Excellence in Research, Chennai, India.
National Institute of Research in Tuberculosis · INNational Institute of Allergy and Infectious Diseases · USStanley Medical College · IN

Funding

India International Center for Excellence in ResearchZIAAI001065 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI NUTMAN, THOMAS · 2009 to 2025
$19.0M
6 · The paper itself

Abstract

Matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinase (TIMPs) are potential regulators of tuberculosis (TB) pathology. Whether they are candidates for non-sputum-based biomarkers for pulmonary TB (PTB) and extra-pulmonary TB (EPTB) is not fully understood. Hence, to examine the association of MMPs and TIMPs with PTB and EPTB, we have measured the circulating levels of MMPs (MMP-1, 2, 3, 7, 8, 9, 12, and 13) and TIMPs (TIMP-1, 2, 3, and 4) in PTB, EPTB and compared them with latent tuberculosis (LTB) or healthy control (HC) individuals. We have also assessed their circulating levels before and after the completion of anti-tuberculosis treatment (ATT). Our data describes that systemic levels of MMP-1, 8, 9, 12 were significantly increased in PTB compared to EPTB, LTB, and HC individuals. In contrast, MMP-7 was significantly reduced in PTB compared to EPTB individuals. Likewise, the systemic levels of MMP-1, 7, 13 were significantly increased in EPTB in comparison to LTB and HC individuals. In contrast, MMP-8 was significantly reduced in EPTB individuals compared to LTB and HC individuals. In addition, the systemic levels of TIMP-1, 2, 3 were significantly diminished and TIMP-4 levels were significantly enhanced in PTB compared to EPTB, LTB, and HC individuals. The circulating levels of TIMP-2 was significantly reduced and TIMP-3 was significantly elevated in EPTB individuals in comparison with LTB and HCs. Some of the MMPs (7, 8, 9, 12, 13 in PTB and 1, 7, 8, 9 in EPTB) and TIMPs (1, 2, 3, 4 in PTB and 4 in EPTB) were significantly modulated upon treatment completion. ROC analysis showed that MMP-1, 9 and TIMP-2, 4 could clearly discriminate PTB from EPTB, LTB and HCs and MMP-13 and TIMP-2 could clearly discriminate EPTB from LTB and HCs. Additionally, multivariate analysis also indicated that these alterations were independent of age and sex in PTB and EPTB individuals. Therefore, our data demonstrates that MMPs and TIMPs are potential candidates for non-sputum-based biomarkers for differentiating PTB and EPTB from LTB and HC individuals.

Indexed as

AdolescentAdultBiomarkersFemaleHumansMaleMatrix MetalloproteinasesMiddle AgedTissue Inhibitor of MetalloproteinasesTuberculosisTuberculosis, PulmonaryYoung AdultBiomarkersMatrix MetalloproteinasesTissue Inhibitor of MetalloproteinasesbiomarkersMMPspulmonary tuberculosisTIMPstuberculous lymphadenitis

Identifiers

PMID32218787
PMCPMC7078103
OpenAlexW3011700610

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.