Evidence map›Paper›PMID 31872983›Full record

ArticleMolecular genetics & genomic medicine2020

Evidence of positively selected G6PD A- allele reduces risk of Plasmodium falciparum infection in African population on Bioko Island.

Xue-Yan Liang, Jiang-Tao Chen, Yan-Bo Ma, Hui-Ying Huang, Dong-De Xie, Santiago-M Monte-Nguba, Carlos Salas Ehapo, Urbano Monsuy Eyi, Yu-Zhong Zheng, Xiang-Zhi Liu and 5 more

Open access · goldAbstract read
In one paragraph

Article in Molecular genetics & genomic medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.8field-weighted citation impact, top 13% 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

10 citing papers in PubMed, 9 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Human genetic variations conferring resistance to malaria.Journal of translational medicine · 2025
    Review
  6. Article
  7. Simultaneous detection ofFrontiers in genetics · 2022
    Article
  8. Article
  9. Review
  10. Article
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

15 authors at 4 institutions in 2 countries.

Xue-Yan LiangSchool of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong Province, People's Republic of China.
Jiang-Tao ChenThe Chinese Medical Aid Team to the Republic of Equatorial Guinea, Guangzhou, Guangdong Province, People's Republic of China.
Yan-Bo MaSchool of Mathematics and Statistics, Hanshan Normal University, Chaozhou, Guangdong Province, People's Republic of China.
Hui-Ying HuangSchool of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong Province, People's Republic of China.
Dong-De XieThe Chinese Medical Aid Team to the Republic of Equatorial Guinea, Guangzhou, Guangdong Province, People's Republic of China.
Santiago-M Monte-NgubaDepartment of Medical Laboratory, Malabo Regional Hospital, Malabo, Equatorial Guinea.
Carlos Salas EhapoDepartment of Medical Laboratory, Malabo Regional Hospital, Malabo, Equatorial Guinea.
Urbano Monsuy EyiDepartment of Medical Laboratory, Malabo Regional Hospital, Malabo, Equatorial Guinea.
Yu-Zhong ZhengSchool of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong Province, People's Republic of China.
Xiang-Zhi LiuDepartment of Medical Laboratory, Chaozhou People's Hospital Affiliated to Shantou University Medical College, Chaozhou, Guangdong Province, People's Republic of China.
Guang-Cai ZhaSchool of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong Province, People's Republic of China.
Li-Yun LinSchool of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong Province, People's Republic of China.
Wei-Zhong ChenDepartment of Medical Laboratory, Chaozhou People's Hospital Affiliated to Shantou University Medical College, Chaozhou, Guangdong Province, People's Republic of China.
Xia ZhouDepartment of Medical Laboratory, Chaozhou People's Hospital Affiliated to Shantou University Medical College, Chaozhou, Guangdong Province, People's Republic of China.
Min LinSchool of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, Guangdong Province, People's Republic of China.ORCID 0000-0002-0025-6167
Shantou University · CNHanshan Normal University · CNNational University of Equatorial Guinea · GQHuizhou Central People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlucose-6-phosphate dehydrogenase (G6PD) is an essential enzyme that protects red blood cells from oxidative damage. Although G6PD-deficient alleles appear to confer a protective effect of malaria, the link with clinical protection against Plasmodium infection is conflicting.

methodsA case-control study was conducted on Bioko Island, Equatorial Guinea and further genotyping analysis used to detect natural selection of the G6PD A- allele.

resultsOur results showed G6PD A- allele could significantly reduce the risk of Plasmodium falciparum infection in male individuals (adjusted odds ratio [AOR], 0.43; 95% confidence interval [CI], 0.20-0.93; p < .05) and homozygous female individuals (AOR, 0.11; 95% CI, 0.01-0.84; p < .05). Additionally, the parasite densities were significantly different in the individuals with different G6PD A- alleles and individual levels of G6PD enzyme activity. The pattern of linkage disequilibrium and results of the long-range haplotype test revealed a strong selective signature in the region encompassing the G6PD A- allele over the past 6,250 years. The network of inferred haplotypes suggested a single origin of the G6PD A- allele in Africans.

conclusionOur findings demonstrate that glucose-6-phosphate dehydrogenase (G6PD) A- allele could reduce the risk of P. falciparum infection in the African population and indicate that malaria has a recent positive selection on G6PD A- allele.

Indexed as

AllelesSelection, GeneticAdolescentAdultBlack PeopleChildChild, PreschoolFemaleGlucosephosphate DehydrogenaseGuineaHomozygoteHumansInfantIslandsLinkage DisequilibriumMalariaG6PD protein, humanGlucosephosphate DehydrogenaseEHHG6PD (A-) deficiencymalarianatural selection

Identifiers

PMID31872983
PMCPMC7005621
OpenAlexW2997001222

What OpenQuestion holds

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Registered trials

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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.