Evidence map›Paper›PMID 22531455›Full record

ArticleMalaria journal2012

Distribution of human CYP2C8*2 allele in three different African populations.

Giacomo M Paganotti, Silvia Gramolelli, Francesca Tabacchi, Gianluca Russo, David Modiano, Mario Coluzzi, Rita Romano

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 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
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  9. Prevalence ofPharmacogenomics and personalized medicine · 2020
    Article
  10. Review
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  12. Article
  13. Article
  14. Mario Coluzzi (1938-2012).Malaria journal · 2014
    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

7 authors at 2 institutions in 2 countries.

Giacomo M PaganottiDepartment of Public Health and Infectious Diseases, Sapienza University, P. le Aldo Moro 5, 00185 Rome, Italy. giacomo.paganotti@uniroma1.it
Silvia Gramolelli
Francesca Tabacchi
Gianluca Russo
David Modiano
Mario Coluzzi
Rita Romano
Sapienza University of Rome · ITDepartment of Public Health · MM

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of this study was to investigate cytochrome P450 2C8*2 (CYP2C8*2) distribution and allele frequency in three populations from West and East Africa exposed to Plasmodium falciparum malaria. CYP2C8 enzyme is involved in the metabolism of the anti-malarials amodiaquine and chloroquine. The presence of the CYP2C8*2 defective allele has been recently associated to higher rate of chloroquine-resistant malaria parasites.

methodsA total of 503 young subjects were genotyped for the single nucleotide polymorphism rs11572103 (A/T). Eighty-eight were from southern Senegal, 262 from eastern Uganda and 153 from southern Madagascar. The PCR-RFLP technique was used to discriminate the wild-type (A) from the defective allele (T).

resultsA CYP2C8*2 (T) allele frequency of 0.222 ± 0.044 was detected in Senegal, 0.105 ± 0.019 in Uganda and 0.150 ± 0.029 in Madagascar.

conclusionsThis study demonstrated that CYP2C8*2 allele is widespread in Africa. This allele occurs at different frequency in West and East Africa, being higher in Senegal than in Uganda and Madagascar. These data indicate that an important fraction of the populations analysed has a decreased enzymatic activity, thus being at higher risk for drug accumulation with two possible consequences: i) an exacerbation of drug-associated adverse side effects; ii) an increase of drug-resistance selection pressure on P. falciparum parasites.

Indexed as

Gene FrequencyPolymorphism, GeneticAdolescentAmodiaquineAntimalarialsAryl Hydrocarbon HydroxylasesChildChild, PreschoolChloroquineCross-Sectional StudiesCytochrome P-450 CYP2C8FemaleGenotypeHumansMadagascarMaleAmodiaquineAntimalarialsAryl Hydrocarbon HydroxylasesChloroquineCYP2C8 protein, humanCytochrome P-450 CYP2C8

Identifiers

PMID22531455
PMCPMC3353233
OpenAlexW2113418233

What OpenQuestion holds

Textmetadata
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.