Evidence map›Paper›PMID 21292899›Full record

ArticleThe American journal of tropical medicine and hygiene2011

Genetic diversity of polymorphic vaccine candidate antigens (apical membrane antigen-1, merozoite surface protein-3, and erythrocyte binding antigen-175) in Plasmodium falciparum isolates from western and central Africa.

Issiaka Soulama, Jude D Bigoga, Magatte Ndiaye, Edith C Bougouma, Josephine Quagraine, Prisca N Casimiro, Timothy T Stedman, Sodiomon B Sirima

Abstract read
In one paragraph

Article in The American journal of tropical medicine and hygiene, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

  1. Article
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  4. Frontiers in immunology · 2022
    Article
  5. Article
  6. Hotspots inInternational journal of molecular sciences · 2020
    Review
  7. Article
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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.

Issiaka SoulamaCentre National de Recherche et de Formation sur le Paludisme, Ouagadougou, Burkina Faso. a.soulama.cnrfp@fasonet.bf
Jude D Bigoga
Magatte Ndiaye
Edith C Bougouma
Josephine Quagraine
Prisca N Casimiro
Timothy T Stedman
Sodiomon B Sirima

Funding

NIAID NIH HHS HHSN266200400016C
6 · The paper itself

Abstract

The malaria vaccine candidate antigens erythrocyte binding antigen 175 (EBA-175), merozoite surface protein 3 (MSP-3), and apical membrane antigen (AMA-1) from Plasmodium falciparum isolates from countries in central and west Africa were assessed for allelic diversity. Samples were collected on filter paper from 600 P. falciparum-infected symptomatic patients in Cameroon, Republic of Congo, Burkina Faso, Ghana, and Senegal and screened for class-specific amplification fragments. Genetic diversity, assessed by mean heterozygosity, was comparable among countries. We detected a clinical increase in eba 175 F-allele frequency from west to east across the study region. No statistical difference in msp-3 allele distribution between countries was observed. The ama-1 3D7 alleles were present at a lower frequency in central Africa than in West Africa. We also detected little to no genetic differentiation among sampling locations. This finding indicates that, at least at the level of resolution offered by restriction fragment length polymorphism analysis, these antigens showed remarkable genetic homogeneity throughout the region sampled, perhaps caused by balancing selection to maintain a diverse array of antigen haplotyes.

Indexed as

Africa, CentralAfrica, WesternAllelesAntigens, ProtozoanDNA, ProtozoanGenetic VariationHeterozygoteHumansMalaria, FalciparumMalaria VaccinesPlasmodium falciparumPolymerase Chain ReactionProtozoan ProteinsAntigens, ProtozoanDNA, Protozoanerythrocyte-binding antigen 175, Plasmodiumerythrocyte membrane protein 1, Plasmodium falciparumMalaria Vaccinesmerozoite surface protein 3, PlasmodiumProtozoan Proteins

Identifiers

PMID21292899
PMCPMC3029182

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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.