Evidence map›Paper›PMID 24135216›Full record

ArticleParasite (Paris, France)2013

Genetic polymorphism of merozoite surface protein-1 and merozoite surface protein-2 in Plasmodium falciparum isolates from children in South of Benin.

Aurore Ogouyèmi-Hounto, Dorothée Kinde Gazard, Nicaise Ndam, Elsa Topanou, Olivia Garba, Pancras Elegbe, Tatiana Hountohotegbe, Achille Massougbodji

Open access · goldAbstract read
In one paragraph

Article in Parasite (Paris, France), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.3field-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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Parasite epidemiology and control · 2024
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  6. Infection and drug resistance · 2023
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  9. Journal of parasitology research · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Dynamics ofPathogens and global health · 2019
    Article
  18. Genetic diversity ofThe Pan African medical journal · 2019
    Article
  19. Article
  20. Review
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

8 authors at 3 institutions in 1 country.

Aurore Ogouyèmi-HountoUnité d'Enseignement et de Recherche en Parasitologie-Mycologie de la Faculté des Sciences de la Santé, 01BP188 Cotonou, Bénin - Laboratoire du Centre de Lutte Intégrée contre le Paludisme, 01BP188 Cotonou, Bénin.
Dorothée Kinde Gazard
Nicaise Ndam
Elsa Topanou
Olivia Garba
Pancras Elegbe
Tatiana Hountohotegbe
Achille Massougbodji
Progamme National Contre le Tuberculose · BJInstitut de Recherche pour le Développement · BJMinistre de la Santé · BJ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to determine the genetic diversity of Plasmodium falciparum by analyzing the polymorphism of the msp-1 and msp-2 genes and the multiplicity of infection in children with uncomplicated malaria in southern Benin. Blood samples of children with fever or history of fever with thick smear positive P. falciparum were collected on filter paper. After extraction of DNA by Chelex®, the samples underwent nested PCR. 93 isolates from children were genotyped. For the msp-1 gene, the K1 and R033 sequences were the most represented in the study population with 85.2% and 83% prevalence, respectively. Regarding the msp-2 gene, the FC27 family was more highly represented with 99% prevalence against 81.5% for 3D7. Mixed infections accounted for 80.4% of the samples. Twenty-five alleles were identified for msp-1 and 28 for msp-2. Fourteen and ten alleles belonged to the K1 (100-500 bp) and MAD20 (100-500 bp) families, respectively. The RO33 sequence did not show any polymorphism, with only one variant (160 bp) detected. The msp-2 gene was present as 16 FC27 family fragments (250-800 bp) and 12 of the 3D7 family (350-700 bp). The multiplicity of infection was estimated at 3.8 for msp-1 and 3.9 for msp-2 with 77 (87.5%) and 84 (91.3%) samples harboring more than one parasite genotype for msp-1 and msp-2, respectively. The multiplicity of infection (MOI) was influenced neither by age nor by parasite density. This study shows a significant diversity of P. falciparum in southern Benin with an MOI unaffected by age or by parasite density.

Indexed as

Polymorphism, GeneticAdolescentAntigens, ProtozoanBeninChildChild, PreschoolDNA, ProtozoanFemaleGenotypeHumansInfantMalaria, FalciparumMaleMerozoite Surface Protein 1Plasmodium falciparumProtozoan ProteinsAntigens, ProtozoanDNA, ProtozoanMerozoite Surface Protein 1merozoite surface protein 2, PlasmodiumProtozoan Proteins

Identifiers

PMID24135216
PMCPMC3798888
OpenAlexW2111484437

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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.