Evidence map›Paper›PMID 22166488›Full record

ArticleParasites & vectors2011

Genetic diversity of Plasmodium falciparum isolates from Pahang, Malaysia based on MSP-1 and MSP-2 genes.

Wahib M Atroosh, Hesham M Al-Mekhlafi, Mohammed Ak Mahdy, Riyadh Saif-Ali, Abdulsalam M Al-Mekhlafi, Johari Surin

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In one paragraph

Article in Parasites & vectors, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
3.8field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

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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

55 citing papers in PubMed, 91 citations in OpenAlex.

  1. Trial
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  13. Genetic polymorphism ofAccess microbiology · 2022
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  14. Journal of parasitology research · 2022
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  15. Evidence of a Recent Bottleneck inPathogens (Basel, Switzerland) · 2021
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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Wahib M AtrooshDepartment of Parasitology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia. wahib_atrosh@yahoo.com
Hesham M Al-Mekhlafi
Mohammed Ak Mahdy
Riyadh Saif-Ali
Abdulsalam M Al-Mekhlafi
Johari Surin
Sana'a University · YEUniversity of Malaya · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMalaria is still a public health problem in Malaysia especially in the interior parts of Peninsular Malaysia and the states of Sabah and Sarawak (East Malaysia). This is the first study on the genetic diversity and genotype multiplicity of Plasmodium falciparum in Malaysia.

methodsSeventy-five P. falciparum isolates were genotyped by using nested-PCR of MSP-1 (block 2) and MSP-2 (block 3).

resultsMSP-1 and MSP-2 allelic families were identified in 65 blood samples. RO33 was the predominant MSP-1 allelic family identified in 80.0% (52/65) of the samples while K1 family had the least frequency. Of the MSP-2 allelic families, 3D7 showed higher frequency (76.0%) compared to FC27 (20.0%). The multiplicity of P. falciparum infection (MOI) was 1.37 and 1.20 for MSP-1 and MSP-2, respectively. A total of seven alleles were detected; of which three MSP-1 allelic families (RO33, MAD20 and K1) were monomorphic in terms of size while MSP-2 alleles were polymorphic (two 3D7 and two FC27). Heterozygosity (HE) was 0.57 and 0.55 for MSP-1 and MSP-2, respectively.

conclusionsThe study showed that the MOI of P. falciparum is low, reflected the low intensity of malaria transmission in Pahang, Malaysia; RO33 and 3D7 were the most predominant circulating allelic families. The findings showed that P. falciparum has low allelic diversity with a high frequency of alleles. As a result, antimalarial drug efficacy trials based on MSP genotyping should be carefully interpreted.

Indexed as

Genetic VariationAdultAllelesAnimalsAntigens, ProtozoanDNA, ProtozoanFemaleGenotypeHumansMalaria, FalciparumMalaysiaMaleMerozoite Surface Protein 1Plasmodium falciparumPolymerase Chain ReactionProtozoan ProteinsAntigens, ProtozoanDNA, ProtozoanMerozoite Surface Protein 1merozoite surface protein 2, PlasmodiumProtozoan Proteins

Identifiers

PMID22166488
PMCPMC3264521
OpenAlexW2151105515

What OpenQuestion holds

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LicenceCC BY
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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.