Evidence map›Paper›PMID 22506028›Full record

ArticlePloS one2012

Haplotype analyses of haemoglobin C and haemoglobin S and the dynamics of the evolutionary response to malaria in Kassena-Nankana District of Ghana.

Anita Ghansah, Kirk A Rockett, Taane G Clark, Michael D Wilson, Kwadwo A Koram, Abraham R Oduro, Lucas Amenga-Etego, Thomas Anyorigiya, Abraham Hodgson, Paul Milligan and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 23% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
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  6. Review
  7. Article
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  10. Understanding the contrasting spatial haplotype patterns of malaria-protective β-globin polymorphisms.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2015
    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

12 authors at 5 institutions in 2 countries.

Anita GhansahNoguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana. AGhansah@noguchi.mimcom.org
Kirk A Rockett
Taane G Clark
Michael D Wilson
Kwadwo A Koram
Abraham R Oduro
Lucas Amenga-Etego
Thomas Anyorigiya
Abraham Hodgson
Paul Milligan
William O Rogers
Dominic P Kwiatkowski
London School of Hygiene & Tropical Medicine · GBNavrongo Health Research Centre · GHCentre for Human Genetics · GBUniversity of Ghana · GHNoguchi Memorial Institute for Medical Research · GH

Funding

Medical Research Council G0600230Medical Research Council G0600718PHS HHS N01 A195363Wellcome Trust 075491/Z/04Wellcome Trust 090532Wellcome Trust 090532/Z/09/ZWellcome Trust 090770Wellcome Trust 090770/Z/09/Z
6 · The paper itself

Abstract

backgroundHaemoglobin S (HbS) and C (HbC) are variants of the HBB gene which both protect against malaria. It is not clear, however, how these two alleles have evolved in the West African countries where they co-exist at high frequencies. Here we use haplotypic signatures of selection to investigate the evolutionary history of the malaria-protective alleles HbS and HbC in the Kassena-Nankana District (KND) of Ghana. METHODOLOGY/PRINCIPAL

findingsThe haplotypic structure of HbS and HbC alleles was investigated, by genotyping 56 SNPs around the HBB locus. We found that, in the KND population, both alleles reside on extended haplotypes (approximately 1.5 Mb for HbS and 650 Kb for HbC) that are significantly less diverse than those of the ancestral HbA allele. The extended haplotypes span a recombination hotspot that is known to exist in this region of the genome SIGNIFICANCE: Our findings show strong support for recent positive selection of both the HbS and HbC alleles and provide insights into how these two alleles have both evolved in the population of northern Ghana.

Indexed as

Evolution, MolecularAllelesbeta-GlobinsCase-Control StudiesEthnicityGene FrequencyGenetic LociGenotyping TechniquesGhanaHaplotypesHemoglobin AHemoglobin CHemoglobin, SickleHumansMalariaPolymorphism, Single Nucleotidebeta-GlobinsHemoglobin AHemoglobin CHemoglobin, Sickle

Identifiers

PMID22506028
PMCPMC3323552
OpenAlexW2041874632

What OpenQuestion holds

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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.