Evidence map›Paper›PMID 25156105›Full record

ArticleMalaria journal2014

Cytoadherence phenotype of Plasmodium falciparum-infected erythrocytes is associated with specific pfemp-1 expression in parasites from children with cerebral malaria.

Talleh Almelli, Nicaise T Ndam, Sem Ezimegnon, Maroufou J Alao, Charles Ahouansou, Gratien Sagbo, Annick Amoussou, Philippe Deloron, Rachida Tahar

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

9 citing papers in PubMed, 17 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 4 institutions in 2 countries.

Talleh Almelli
Nicaise T Ndam
Sem Ezimegnon
Maroufou J Alao
Charles Ahouansou
Gratien Sagbo
Annick Amoussou
Philippe Deloron
Rachida TaharInstitut de Recherche pour le Développement (IRD), UMR 216 Mère et Enfant Face aux Infections Tropicales, 4, avenue de l'Observatoire, Paris 75270, France. Rachida.Tahar@ird.fr.
Délégation Paris 5 · FRCentre National Hospitalier et Universitaire Hubert Koutoukou MAGA · BJHôpital Mère-Enfant · FRInstitut de Recherche pour le Développement · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCytoadherence of Plasmodium falciparum-infected erythrocytes (IEs) in deep microvasculature endothelia plays a major role in the pathogenesis of cerebral malaria (CM). This biological process is thought to be mediated by P. falciparum erythrocyte membrane protein-1 (PfEMP-1) and human receptors such as CD36 and ICAM-1. The relationship between the expression of PfEMP-1 variants and cytoadherence phenotype in the pathology of malaria is not well established.

methodsCytoadherence phenotypes of IEs to CD36, ICAM-1, CSPG and the transcription patterns of A, B, var2csa, var3, var gene groups and domain cassettes DC8 and DC13 were assessed in parasites from children with CM and uncomplicated malaria (UM) to determine if cytoadherence is related to a specific transcription profile of pfemp-1 variants.

resultsParasites from CM patients bind significantly more to CD36 than those from UM patients, but no difference was observed in their binding ability to ICAM-1 and CSPG. CM isolates highly transcribed groups A, B, var2csa, var3, DC8 and DC13 compared to UM parasites. The high transcription levels of var genes belonging to group B positively correlated with increased binding level to CD36.

conclusionCM isolates bind significantly more to CD36 than to ICAM-1, which was correlated with high transcription level of group B var genes, supporting their implication in malaria pathogenesis.

Indexed as

Cell AdhesionCD36 AntigensChildErythrocytesGene ExpressionGenotypeHumansIntercellular Adhesion Molecule-1Malaria, CerebralPlasmodium falciparumProtozoan ProteinsReceptors, Cell SurfaceCD36 Antigenschondroitin sulfate proteoglycan receptor, humanerythrocyte membrane protein 1, Plasmodium falciparumIntercellular Adhesion Molecule-1Protozoan ProteinsReceptors, Cell Surface

Identifiers

PMID25156105
PMCPMC4150962
OpenAlexW2129117190

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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.