Evidence map›Paper›PMID 30846768›Full record

ArticleScientific reports2019

IP-10 dried blood spots assay monitoring treatment efficacy in extrapulmonary tuberculosis in a low-resource setting.

Ida Marie Hoel, Melissa Davidsen Jørstad, Msafiri Marijani, Morten Ruhwald, Tehmina Mustafa, Anne Ma Dyrhol-Riise

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

6 citing papers in PubMed, 16 citations in OpenAlex.

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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

6 authors at 4 institutions in 2 countries.

Ida Marie HoelCentre for International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
Melissa Davidsen JørstadCentre for International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
Msafiri MarijaniDepartment of Diagnostic Services, Mnazi Mmoja Hospital, Zanzibar, United Republic of Tanzania.
Morten RuhwaldDepartment of Infectious Disease Immunology, Statens Serum Institut, Copenhagen, Denmark.ORCID 0000-0002-1597-441X
Tehmina MustafaCentre for International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
Anne Ma Dyrhol-RiiseDepartment of Clinical Science, University of Bergen, Bergen, Norway. a.m.d.riise@medisin.uio.no.ORCID 0000-0003-4009-4032
Haukeland University Hospital · NOOslo University Hospital · NOStatens Serum Institut · DKUniversity of Bergen · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Treatment efficacy is difficult to evaluate in extrapulmonary tuberculosis (EPTB) patients. Interferon-γ inducible protein (IP-)10 has been suggested as a biomarker for response to treatment. We have investigated if IP-10 from dried plasma spots (DPS) or dried blood spots (DBS) can be used in treatment monitoring of EPTB patients in a low-resource setting of Zanzibar. IP-10 levels in plasma, DPS and DBS samples collected before, during (2 months) and after TB treatment of 36 EPTB patients (6 culture and/or Xpert MTB/RIF positive and 30 clinically diagnosed) and 8 pulmonary tuberculosis (PTB) patients, were quantified by an enzyme-linked immunosorbent assay. There was a high positive correlation between IP-10 measured in plasma and DPS and DBS, respectively. We found a significant decline in IP-10 levels from baseline to end of treatment in plasma, DPS and DBS, both in EPTB and PTB patients. The declines were observed already after 2 months in HIV negative patients. In conclusion, the DPS/DBS IP-10 assay allows for easy and manageable monitoring in low-resource settings and our findings suggest that IP-10 may serve as a biomarker for treatment efficacy in EPTB patients, albeit further studies in cohorts of patients with treatment failure and relapse are needed.

Indexed as

Dried Blood Spot TestingAdolescentAdultAgedAntitubercular AgentsBiomarkersChemokine CXCL10CoinfectionEnzyme-Linked Immunosorbent AssayFemaleHIV InfectionsHumansLongitudinal StudiesMaleMiddle AgedPlasmaAntitubercular AgentsBiomarkersChemokine CXCL10CXCL10 protein, human

Identifiers

PMID30846768
PMCPMC6405853
OpenAlexW2919009847

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Registered trials

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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.