Evidence map›Paper›PMID 22348117›Full record

ArticlePloS one2012

Reduced T regulatory cell response during acute Plasmodium falciparum infection in Malian children co-infected with Schistosoma haematobium.

Kirsten E Lyke, Abdoulaye Dabo, Charles Arama, Modibo Daou, Issa Diarra, Amy Wang, Christopher V Plowe, Ogobara K Doumbo, Marcelo B Sztein

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 15% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 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

9 authors at 3 institutions in 3 countries.

Kirsten E LykeCenter for Vaccine Development, University of Maryland School of Medicine, Baltimore, Maryland, United States of America. KLyke@medicine.umaryland.edu
Abdoulaye Dabo
Charles Arama
Modibo Daou
Issa Diarra
Amy Wang
Christopher V Plowe
Ogobara K Doumbo
Marcelo B Sztein
University of Bamako · MLUniversity of Maryland, Baltimore · USStockholm University · SE

Funding

Immunologic Determinants of Schistosoma-mediated Resistance to Malaria in HumansR01AI067954 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI LYKE, KIRSTEN E · 2008 to 2011
$1.1M
Immunologic interaction of schistomiasis &acute malariaK23AI049203 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI LYKE, KIRSTEN E · 2002 to 2005
$507k
NIAID NIH HHS K23 AI049203NIAID NIH HHS K23 AI49203NIAID NIH HHS R-01 AI067954NIAID NIH HHS R01 AI067954
6 · The paper itself

Abstract

backgroundRegulatory T cells (Tregs) suppress host immune responses and participate in immune homeostasis. In co-infection, secondary parasite infections may disrupt the immunologic responses induced by a pre-existing parasitic infection. We previously demonstrated that schistosomiasis-positive (SP) Malian children, aged 4-8 years, are protected against the acquisition of malaria compared to matched schistosomiasis-negative (SN) children. METHODS AND

findingsTo determine if Tregs contribute to this protection, we performed immunologic and Treg depletion in vitro studies using PBMC acquired from children with and without S. haematobium infection followed longitudinally for the acquisition of malaria. Levels of Tregs were lower in children with dual infections compared to children with malaria alone (0.49 versus 1.37%, respectively, P = 0.004) but were similar months later, during a period with negligible malaria transmission. The increased levels of Tregs in SN subjects were associated with suppressed serum Th1 cytokine levels, as well as elevated parasitemia compared to co-infected counterparts.

conclusionsThese results suggest that lower levels of Tregs in helminth-infected children correlate with altered circulating cytokine and parasitologic results which may play a partial role in mediating protection against falciparum malaria.

Indexed as

AnimalsBlood CellsCells, CulturedChildChild, PreschoolCoinfectionCytokinesHumansLongitudinal StudiesMalaria, FalciparumParasitemiaPlasmodium falciparumSchistosoma haematobiumSchistosomiasis haematobiaTh1 CellsT-Lymphocytes, RegulatoryCytokines

Identifiers

PMID22348117
PMCPMC3279404
OpenAlexW2022649793

What OpenQuestion holds

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LicenceCC BY
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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.