Evidence map›Paper›PMID 22759447›Full record

ArticleMalaria journal2012

Population genetic structure of Plasmodium falciparum across a region of diverse endemicity in West Africa.

Victor A Mobegi, Kovana M Loua, Ambroise D Ahouidi, Judith Satoguina, Davis C Nwakanma, Alfred Amambua-Ngwa, David J Conway

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 2 pooled it
8.5field-weighted citation impact, top 2% 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

81 citing papers in PubMed, 2 syntheses or guidelines pooled it, 131 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
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  9. Review
  10. Genetic diversity and haplotype structure of theFrontiers in cellular and infection microbiology · 2025
    Article
  11. Genotyping and CharacterizingTropical medicine and infectious disease · 2024
    Review
  12. Article
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  15. Article
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  19. Article
  20. Population structure and genetic connectivity ofFrontiers in epidemiology · 2023
    Article

21 more citing papers are in PubMed but not listed here.

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

7 authors at 3 institutions in 3 countries.

Victor A MobegiDepartment of Pathogen Molecular Biology, London School of Hygiene and Tropical Medicine, UK.
Kovana M Loua
Ambroise D Ahouidi
Judith Satoguina
Davis C Nwakanma
Alfred Amambua-Ngwa
David J Conway
MRC Unit the Gambia · GMCheikh Anta Diop University · SNLondon School of Hygiene & Tropical Medicine · GB

Funding

Medical Research Council MC_U190081987
6 · The paper itself

Abstract

backgroundMalaria parasite population genetic structure varies among areas of differing endemicity, but this has not been systematically studied across Plasmodium falciparum populations in Africa where most infections occur.

methodsTen polymorphic P. falciparum microsatellite loci were genotyped in 268 infections from eight locations in four West African countries (Republic of Guinea, Guinea Bissau, The Gambia and Senegal), spanning a highly endemic forested region in the south to a low endemic Sahelian region in the north. Analysis was performed on proportions of mixed genotype infections, genotypic diversity among isolates, multilocus standardized index of association, and inter-population differentiation.

resultsEach location had similar levels of pairwise genotypic diversity among isolates, although there were many more mixed parasite genotype infections in the south. Apart from a few isolates that were virtually identical, the multilocus index of association was not significant in any population. Genetic differentiation between populations was low (most pairwise F(ST) values < 0.03), and an overall test for isolation by distance was not significant.

conclusionsAlthough proportions of mixed genotype infections varied with endemicity as expected, population genetic structure was similar across the diverse sites. Very substantial reduction in transmission would be needed to cause fragmented or epidemic sub-structure in this region.

Indexed as

Endemic DiseasesGenetic VariationAfrica, WesternGenotypeHumansMalaria, FalciparumMicrosatellite RepeatsPlasmodium falciparum

Identifiers

PMID22759447
PMCPMC3425276
OpenAlexW2123284622

What OpenQuestion holds

Textmetadata
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.