Evidence map›Paper›PMID 26657042›Full record

ArticleScientific reports2015

Differential Plasmodium falciparum surface antigen expression among children with Malarial Retinopathy.

Abdirahman I Abdi, Symon M Kariuki, Michelle K Muthui, Cheryl A Kivisi, Gregory Fegan, Evelyn Gitau, Charles R Newton, Peter C Bull

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

17 citing papers in PubMed, 21 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

8 authors at 2 institutions in 2 countries.

Abdirahman I AbdiKEMRI-Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya.
Symon M KariukiKEMRI-Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya.
Michelle K MuthuiKEMRI-Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya.
Cheryl A KivisiKEMRI-Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya.
Gregory FeganKEMRI-Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya.
Evelyn GitauKEMRI-Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya.
Charles R NewtonKEMRI-Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya.
Peter C BullKEMRI-Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya.
Kenya Medical Research Institute · KEUniversity of Oxford · GB

Funding

Wellcome Trust 083744Wellcome Trust 084535Wellcome Trust 084538Wellcome Trust 092654Wellcome Trust 092741Wellcome Trust 099782Wellcome Trust 103956
6 · The paper itself

Abstract

Retinopathy provides a window into the underlying pathology of life-threatening malarial coma ("cerebral malaria"), allowing differentiation between 1) coma caused by sequestration of Plasmodium falciparum-infected erythrocytes in the brain and 2) coma with other underlying causes. Parasite sequestration in the brain is mediated by PfEMP1; a diverse parasite antigen that is inserted into the surface of infected erythrocytes and adheres to various host receptors. PfEMP1 sub-groups called "DC8" and "DC13" have been proposed to cause brain pathology through interactions with endothelial protein C receptor. To test this we profiled PfEMP1 gene expression in parasites from children with clinically defined cerebral malaria, who either had or did not have accompanying retinopathy. We found no evidence for an elevation of DC8 or DC13 PfEMP1 expression in children with retinopathy. However, the proportional expression of a broad subgroup of PfEMP1 called "group A" was elevated in retinopathy patients suggesting that these variants may play a role in the pathology of cerebral malaria. Interventions targeting group A PfEMP1 may be effective at reducing brain pathology.

Indexed as

Antigens, ProtozoanBrainChild, PreschoolErythrocytesFemaleHumansMalaria, FalciparumMalePlasmodium falciparumProtozoan ProteinsRetinal DiseasesAntigens, ProtozoanProtozoan Proteins

Identifiers

PMID26657042
PMCPMC4677286
OpenAlexW2191858599

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.