Evidence map›Paper›PMID 30453898›Full record

ArticleBMC immunology2018

Characterization of anti-EBA175RIII-V in asymptomatic adults and children living in communities in the Greater Accra Region of Ghana with varying malaria transmission intensities.

L E Amoah, H B Abagna, K Akyea-Mensah, A C Lo, K A Kusi, B A Gyan

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Article in BMC immunology, 2018. 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
1.8field-weighted citation impact, top 14% 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, 26 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 2 institutions in 2 countries.

L E AmoahNoguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana. lamoah@noguchi.ug.edu.gh.
H B AbagnaNoguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana.
K Akyea-MensahNoguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana.
A C LoNoguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana.
K A KusiNoguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana.
B A GyanNoguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana.
University of Ghana · GHNoguchi Memorial Institute for Medical Research · GH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAntibodies against Region III-V of the erythrocyte binding antigen (EBA) 175 (EBA175RIII-V) have been suggested to provide protection from malaria in a natural infection. However, the quality and quantity of naturally induced antibodies to EBA175RIII-V has not been fully characterized in different cohorts of Ghanaians. This study sought to determine the characteristics of antibodies against EBA175RIII-V in asymptomatic adults and children living in two communities of varying P. falciparum parasite prevalence in southern Ghana.

methodsMicroscopic evaluation of thick and thin blood smears was used to identify asymptomatic Plasmodium falciparum carriage and indirect enzyme linked immunosorbent (ELISA) used to assess antibody concentrations and avidity.

resultsParasite carriage estimated by microscopy in Obom was 35.6% as opposed to 3.5% in Asutsuare. Levels of IgG, IgG1, IgG2, IgG3 and IgG4 against EBA175RIII-V in the participants from Obom were significantly higher (P < 0.05, Dunn's Multiple Comparison test) than those in Asutsuare. However the relative avidity of IgG antibodies against EBA175RIII-V was significantly higher (P < 0.0001, Mann Whitney test) in Asutsuare than in Obom.

conclusionsPeople living in communities with limited exposure to P. falciparum parasites have low quantities of high avidity antibodies against EBA175RIII-V whilst people living in communities with high exposure to the parasites have high quantities of age-dependent but low avidity antibodies against EBA175RIII-V.

Indexed as

AdolescentAdultAgedAntigens, ProtozoanChildChild, PreschoolCohort StudiesErythrocytesFemaleGhanaHumansImmunoglobulin GMalaria, FalciparumMaleMiddle AgedPlasmodium falciparumAntigens, Protozoanerythrocyte-binding antigen 175, PlasmodiumImmunoglobulin GProtozoan Proteins

Identifiers

PMID30453898
PMCPMC6245760
OpenAlexW2901377499

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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.