Evidence map›Paper›PMID 31543654›Full record

ArticleJournal of global infectious diseases

Hemoglobin S and Glucose-6-Phosphate Dehydrogenase Deficiency Coinheritance in AS and SS Individuals in Malaria-Endemic Region: A Study in Calabar, Nigeria.

Ifeyinwa M Okafor, Henshaw U Okoroiwu, Chukwudi A Ekechi

Open access · goldAbstract read
In one paragraph

Article in Journal of global infectious diseases. 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
1.6field-weighted citation impact, top 16% 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, 16 citations in OpenAlex.

  1. Coinheritance of polymorphic alleles ofOne health (Amsterdam, Netherlands) · 2025
    Article
  2. Article
  3. Article
  4. Review
  5. Sickle Cell Trait Modulates the Proteome and Phosphoproteome ofFrontiers in cellular and infection microbiology · 2021
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  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

3 authors at 1 institution in 1 country.

Ifeyinwa M OkaforDepartment of Medical Laboratory Science, Hematology Unit, College of Medical Sciences, University of Calabar, Calabar, Nigeria.
Henshaw U OkoroiwuDepartment of Medical Laboratory Science, Hematology Unit, College of Medical Sciences, University of Calabar, Calabar, Nigeria.
Chukwudi A EkechiDepartment of Medical Laboratory Science, Hematology Unit, College of Medical Sciences, University of Calabar, Calabar, Nigeria.
University of Calabar · NG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMalaria placed a huge burden on human life and has been reported to be a key health problem affecting developing countries. This study was designed to assay for glucose-6-phosphate dehydrogenase (G6PD) status and malaria parasite density of individuals with sickle cell gene in University of Calabar Teaching Hospital, Calabar. SUBJECTS AND

methodsThe methemoglobin method was used to determine the G6PD status. Thick blood films were used to ascertain the malaria parasite density while hemoglobin genotype was determined using cellulose acetate paper electrophoresis with tris ethylenediaminetetracetic acid borate buffer (pH 8.6). Thirty hemoglobin SS (HbSS) and 30 hemoglobin AS (HbAS) individuals were recruited for the study while 30 hemoglobin AA (HbAA) individuals were recruited as control.

resultsThe study showed a high frequency of G6PD deficiency (17.78%) in the study area while G6PD deficiency was significantly (

conclusionThe result of this study supports the hypothesis that inheriting the G6PD deficiency gene and sickle cell gene (both in homozygous and heterozygous form) reduces the severity of malaria parasite infection and hence protects against severe acute malaria while having less effect on infection.

Indexed as

G6PDGlucose-6-phosphate dehydrogenasehemoglobinhemoglobin SSmalaria parasitesickle cell

Identifiers

PMID31543654
PMCPMC6733195
OpenAlexW2970366424

What OpenQuestion holds

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LicenceCC BY-NC-SA
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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.