Evidence map›Paper›PMID 35259187›Full record

ArticlePloS one2022

Genomic miscellany and allelic frequencies of Plasmodium falciparum msp-1, msp-2 and glurp in parasite isolates.

Ibrar Ullah, Asifullah Khan, Muhammad Israr, Mohibullah Shah, Sulaiman Shams, Waliullah Khan, Muzafar Shah, Muhammad Siraj, Kehkashan Akbar, Tahira Naz and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.4field-weighted citation impact, top 39% 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

9 citing papers in PubMed, 2 citations in OpenAlex.

  1. Parasite epidemiology and control · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Allelic frequency ofMalariaWorld journal · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. High Prevalence of PolyclonalTropical medicine and infectious disease · 2023
    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

11 authors at 4 institutions in 1 country.

Ibrar UllahDepartment of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan.
Asifullah KhanDepartment of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan.
Muhammad IsrarDepartment of Forensic Sciences, University of Swat, Swat, Pakistan.
Mohibullah ShahDepartment of Biochemistry, Bahauddin Zakariya University Multan, Multan, Pakistan.ORCID 0000-0001-6126-7102
Sulaiman ShamsDepartment of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan.
Waliullah KhanDepartment of Chemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan.
Muzafar ShahCentre for Animal Sciences & Fisheries, University of Swat, Swat, Pakistan.ORCID 0000-0002-5069-0228
Muhammad SirajDepartment of Zoology, Abbottabad University of Science and Technology, Abbottabad, Pakistan.
Kehkashan AkbarDepartment of Biochemistry, Abbottabad International Medical College, Abbottabad, Pakistan.
Tahira NazDepartment of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan.
Sahib Gul AfridiDepartment of Biochemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan.ORCID 0000-0001-9411-4823
Abdul Wali Khan University Mardan · PKBahauddin Zakariya University · PKAbbottabad University of Science and Technology · PKUniversity of Swat · PK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe genomic miscellany of malaria parasites can help inform the intensity of malaria transmission and identify potential deficiencies in malaria control programs. This study was aimed at investigating the genomic miscellany, allele frequencies, and MOI of P. falciparum infection.

methodsA total of 85 P. falciparum confirmed isolates out of 100 were included in this study that were collected from P. falciparum patients aged 4 months to 60 years in nine districts of Khyber Pakhtunkhwa Province. Parasite DNA was extracted from 200µL whole blood samples using the Qiagen DNA extraction kit following the manufacturer's instructions. The polymorphic regions of msp-1, msp-2 and glurp loci were genotyped using nested PCR followed by gel electrophoresis for amplified fragments identification and subsequent data analysis.

resultsOut of 85 P. falciparum infections detected, 30 were msp-1 and 32 were msp-2 alleles specific. Successful amplification occurred in 88.23% (75/85) isolates for msp-1, 78.9% (67/85) for msp-2 and 70% (60/85) for glurp gene. In msp-1, the K1 allelic family was predominantly prevalent as 66.66% (50/75), followed by RO33 and MAD20. The frequency of samples with single infection having only K1, MAD20 and RO33 were 21.34% (16/75), 8% (6/75), and 10.67% (8/75), respectively. In msp-2, both the FC27 and 3D7 allelic families revealed almost the same frequencies as 70.14% (47/67) and 67.16% (45/67), respectively. Nine glurp RII region alleles were identified in 60 isolates. The overall mean multiplicity of infection for msp genes was 1.6 with 1.8 for msp-1 and 1.4 for msp-2, while for glurp the MOI was 1.03. There was no significant association between multiplicity of infection and age groups (Spearman's rank coefficient = 0.050; P = 0.6) while MOI and parasite density correlated for only msp-2 allelic marker.

conclusionsThe study showed high genetic diversity and allelic frequency with multiple clones of msp-1, msp-2 and glurp in P. falciparum isolates in Khyber Pakhtunkhwa, Pakistan. In the present study the genotype data may provide valuable information essential for monitoring the impact of malaria eradication efforts in this region.

Indexed as

Malaria, FalciparumPlasmodium falciparumProtozoan ProteinsAllelesAntigens, ProtozoanGene FrequencyGenetic VariationGenotypeHumansMerozoite Surface Protein 1PakistanAntigens, ProtozoanMerozoite Surface Protein 1Protozoan Proteins

Identifiers

PMID35259187
PMCPMC8903261
OpenAlexW3177244835

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.