Evidence map›Paper›PMID 24948693›Full record

ArticleThe Journal of infectious diseases2014

Whole-genome scans provide evidence of adaptive evolution in Malawian Plasmodium falciparum isolates.

Harold Ocholla, Mark D Preston, Mwapatsa Mipando, Anja T R Jensen, Susana Campino, Bronwyn MacInnis, Daniel Alcock, Anja Terlouw, Issaka Zongo, Jean-Bosco Oudraogo and 13 more

Registry-linked trialAbstract read
In one paragraph

Article in The Journal of infectious diseases, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04419766 (Evaluation of IR3535 as a Spatial Repellent for Malaria Control.), which is not on this map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
–field-weighted citation impact
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.

NCT04419766 naactive not recruitingnot on this mapstarted 2021, after this paper: background citation

Evaluation of IR3535 as a Spatial Repellent for Malaria Control. (Avaliação da eficácia do Repelente Ambiental 3-(N-acetyl-n-butyl) Aminopropionic Acid Ethyl Ester (IR3535) Como Ferramenta Para o Controlo da malária).

TypeinterventionalSponsorUniversidade Nova de LisboaRan2021 to 2025Enrolled166ConditionsMalariaArmsIR3535 (3-(N-acetyl-N-butyl) aminopropionic acid ethyl ester) house spraying
3 · Its place in the literature

Who cites it

36 citing papers in PubMed.

  1. Genome-Wide Analysis of the Malaria ParasiteFrontiers in immunology · 2020
    Trial
  2. Article
  3. Rare variation in malaria parasites biases population-genetic inference.bioRxiv : the preprint server for biology · 2026
    Article
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  19. Clinical microbiology reviews · 2019
    Review
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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

23 authors.

Harold OchollaMalawi-Liverpool-Wellcome Trust Clinical Research Programme Liverpool School of Tropical Medicine, Pembroke Place, Liverpool.
Mark D PrestonFaculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine.
Mwapatsa MipandoDepartment of Physiology, College of Medicine, University of Malawi, Blantyre.
Anja T R JensenCentre for Medical Parasitology, Department of International Health, Immunology and Microbiology, University of Copenhagen Department of Infectious Diseases, Copenhagen University Hospital, Denmark.
Susana CampinoWellcome Trust Sanger Institute, Hinxton.
Bronwyn MacInnisWellcome Trust Sanger Institute, Hinxton.
Daniel AlcockWellcome Trust Sanger Institute, Hinxton.
Anja TerlouwMalawi-Liverpool-Wellcome Trust Clinical Research Programme Liverpool School of Tropical Medicine, Pembroke Place, Liverpool.
Issaka ZongoInstitut de Recherche en Sciences de la Sant, Bobo-Dioulasso, Burkina Faso.
Jean-Bosco OudraogoInstitut de Recherche en Sciences de la Sant, Bobo-Dioulasso, Burkina Faso.
Abdoulaye A DjimdeWellcome Trust Sanger Institute, Hinxton Malaria Research and Training Centre, Faculty of Medicine, Pharmacy and Dentistry, University of Bamako, Mali.
Samuel AssefaFaculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine.
Ogobara K DoumboMalaria Research and Training Centre, Faculty of Medicine, Pharmacy and Dentistry, University of Bamako, Mali.
Steffen BorrmannInstitute of Tropical Medicine, University of Tübingen, Germany.
Alexis NzilaDepartment of Biology, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia.
Kevin MarshKEMRI-Wellcome Trust Research Programme, Kilifi, Kenya.
Rick M FairhurstLaboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland.
Francois NostenCentre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, United Kingdom Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand.
Tim J C AndersonTexas Biomedical Research Institute, San Antonio, Texas.
Dominic P KwiatkowskiWellcome Trust Sanger Institute, Hinxton Wellcome Trust Centre for Human Genetics, University of Oxford, United Kingdom.
Alister CraigLiverpool School of Tropical Medicine, Pembroke Place, Liverpool.
Taane G ClarkFaculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine.
Jacqui MontgomeryMalawi-Liverpool-Wellcome Trust Clinical Research Programme Liverpool School of Tropical Medicine, Pembroke Place, Liverpool.

Funding

International Research in Cambodia: Tropical Medicine and Vector Research ZIAAI001066 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI YEK, CHRISTINA · 2009 to 2025
$10.8M
Malaria Pathogenesis and Human ImmunityZIAAI001000 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI FAIRHURST, RICK · 2009 to 2017
$9.3M
Mapping Drug Resistance Genes in Plasmodium falciparumR37AI048071 · NIAID · TEXAS BIOMEDICAL RESEARCH INSTITUTE · PI ANDERSON, TIM J · 2012 to 2021
$7.9M
Medical Research Council MR/K000551/1NIAID NIH HHS R37 AI048071Wellcome Trust 090532Wellcome Trust 090770Wellcome Trust 092654Wellcome Trust 095507Wellcome Trust 100890Wellcome Trust 101113Wellcome Trust WT084289MA
6 · The paper itself

Abstract

backgroundSelection by host immunity and antimalarial drugs has driven extensive adaptive evolution in Plasmodium falciparum and continues to produce ever-changing landscapes of genetic variation.

methodsWe performed whole-genome sequencing of 69 P. falciparum isolates from Malawi and used population genetics approaches to investigate genetic diversity and population structure and identify loci under selection.

resultsHigh genetic diversity (π = 2.4 × 10(-4)), moderately high multiplicity of infection (2.7), and low linkage disequilibrium (500-bp) were observed in Chikhwawa District, Malawi, an area of high malaria transmission. Allele frequency-based tests provided evidence of recent population growth in Malawi and detected potential targets of host immunity and candidate vaccine antigens. Comparison of the sequence variation between isolates from Malawi and those from 5 geographically dispersed countries (Kenya, Burkina Faso, Mali, Cambodia, and Thailand) detected population genetic differences between Africa and Asia, within Southeast Asia, and within Africa. Haplotype-based tests of selection to sequence data from all 6 populations identified signals of directional selection at known drug-resistance loci, including pfcrt, pfdhps, pfmdr1, and pfgch1.

conclusionsThe sequence variations observed at drug-resistance loci reflect differences in each country's historical use of antimalarial drugs and may be useful in formulating local malaria treatment guidelines.

Indexed as

Adaptation, BiologicalEvolution, MolecularGenome, ProtozoanAntimalarialsChildChild, PreschoolFemaleGenetic VariationHumansMalaria, FalciparumMalawiMaleMolecular EpidemiologyPlasmodium falciparumSelection, GeneticSequence Analysis, DNAAntimalarialsgenetic epidemiologygenomesMalawiPlasmodium falciparum

Identifiers

PMID24948693
PMCPMC4241944

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Registered trials

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.