Evidence map›Paper›PMID 23768513›Full record

ArticleAmerican journal of human genetics2013

Identifying Darwinian selection acting on different human APOL1 variants among diverse African populations.

Wen-Ya Ko, Prianka Rajan, Felicia Gomez, Laura Scheinfeldt, Ping An, Cheryl A Winkler, Alain Froment, Thomas B Nyambo, Sabah A Omar, Charles Wambebe and 3 more

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 67 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed, 3 pooled it
6.4field-weighted citation impact, top 3% 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

67 citing papers in PubMed, 3 syntheses or guidelines pooled it, 104 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Guideline
  4. Germline-targeted baboon apolipoprotein L-1 protects mice against African trypanosomes.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  5. Molecular Mechanisms of APOL1-Associated Kidney Disease.International journal of molecular sciences · 2026
    Review
  6. Review
  7. Review
  8. Article
  9. The New England journal of medicine · 2025
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Genetic Variants ofKidney international reports · 2022
    Article
  18. Article
  19. Article
  20. Advances in integrative African genomics.Trends in genetics : TIG · 2022
    Review

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

4 · The record

Corrections and comments

  • Erratum issued
    An, Ping [added]; Winkler, Cheryl A [added]
5 · Who and what money

Authors and funding

13 authors at 7 institutions in 5 countries.

Wen-Ya KoDepartment of Genetics, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Prianka Rajan
Felicia Gomez
Laura Scheinfeldt
Ping An
Cheryl A Winkler
Alain Froment
Thomas B Nyambo
Sabah A Omar
Charles Wambebe
Alessia Ranciaro
Jibril B Hirbo
Sarah A Tishkoff
University of Pennsylvania · USCenter for Cancer Research · USInstitut de Recherche pour le Développement · FRKenya Medical Research Institute · KEMuhimbili University of Health and Allied Sciences · TZScience Applications International Corporation (United States) · USUniversidade do Porto · PT

Funding

Genetics of Renal Disease in African AmericansZIABC010022 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI WINKLER, CHERYL · 2009 to 2022
$8.9M
African Odyssey: An Integrative Genomics Analysis of Complex Physiologic TraitsDP1ES022577 · NIEHS · UNIVERSITY OF PENNSYLVANIA · PI TISHKOFF, SARAH ANNE · 2012 to 2013
$1.6M
Variation at Malaria Resistance Genes in AfricansR01GM076637 · NIGMS · UNIV OF MARYLAND, COLLEGE PARK · PI TISHKOFF, SARAH ANNE · 2006 to 2009
$1.2M
CCR NIH HHS HHSN261200800001CIntramural NIH HHSNCCDPHP CDC HHS 8DP1ES022577-04NCI NIH HHS HHSN261200800001ENIEHS NIH HHS DP1 ES022577NIGMS NIH HHS 5-R01-GM076637-05NIGMS NIH HHS R01 GM076637
6 · The paper itself

Abstract

Disease susceptibility can arise as a consequence of adaptation to infectious disease. Recent findings have suggested that higher rates of chronic kidney disease (CKD) in individuals with recent African ancestry might be attributed to two risk alleles (G1 and G2) at the serum-resistance-associated (SRA)-interacting-domain-encoding region of APOL1. These two alleles appear to have arisen adaptively, possibly as a result of their protective effects against human African trypanosomiasis (HAT), or African sleeping sickness. In order to explore the distribution of potential functional variation at APOL1, we studied nucleotide variation in 187 individuals across ten geographically and genetically diverse African ethnic groups with exposure to two Trypanosoma brucei subspecies that cause HAT. We observed unusually high levels of nonsynonymous polymorphism in the regions encoding the functional domains that are required for lysing parasites. Whereas allele frequencies of G2 were similar across all populations (3%-8%), the G1 allele was only common in the Yoruba (39%). Additionally, we identified a haplotype (termed G3) that contains a nonsynonymous change at the membrane-addressing-domain-encoding region of APOL1 and is present in all populations except for the Yoruba. Analyses of long-range patterns of linkage disequilibrium indicate evidence of recent selection acting on the G3 haplotype in Fulani from Cameroon. Our results indicate that the G1 and G2 variants in APOL1 are geographically restricted and that there might be other functional variants that could play a role in HAT resistance and CKD risk in African populations.

Indexed as

Polymorphism, Single NucleotideSelection, GeneticAdaptation, BiologicalAfricaAllelesApolipoprotein L1ApolipoproteinsBlack PeopleDisease ResistanceEvolution, MolecularExonsGene FrequencyGenetic Predisposition to DiseaseGenetics, PopulationHaplotypesHumansAPOL1 protein, humanApolipoprotein L1ApolipoproteinsLipoproteins, HDL

Identifiers

PMID23768513
PMCPMC3710747
OpenAlexW2125952756

What OpenQuestion holds

Textmetadata
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.