Evidence map›Paper›PMID 24809681›Full record

ArticlePloS one2014

A genome wide association study of Plasmodium falciparum susceptibility to 22 antimalarial drugs in Kenya.

Jason P Wendler, John Okombo, Roberto Amato, Olivo Miotto, Steven M Kiara, Leah Mwai, Lewa Pole, John O'Brien, Magnus Manske, Dan Alcock and 12 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 5% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
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  14. Clinical microbiology reviews · 2019
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  15. ApiAP2 Transcription Factors in Apicomplexan Parasites.Pathogens (Basel, Switzerland) · 2019
    Review
  16. 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

22 authors at 7 institutions in 4 countries.

Jason P WendlerMedical Research Council (MRC) Centre for Genomics and Global Health, University of Oxford, Oxford, United Kingdom; Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom; Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom.
John OkomboKenya Medical Research Institute (KEMRI)/Wellcome Trust Collaborative Research Program, Kilifi, Kenya.
Roberto AmatoMedical Research Council (MRC) Centre for Genomics and Global Health, University of Oxford, Oxford, United Kingdom; Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom; Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom.
Olivo MiottoMedical Research Council (MRC) Centre for Genomics and Global Health, University of Oxford, Oxford, United Kingdom; Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand; Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom; Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom.
Steven M KiaraKenya Medical Research Institute (KEMRI)/Wellcome Trust Collaborative Research Program, Kilifi, Kenya.
Leah MwaiKenya Medical Research Institute (KEMRI)/Wellcome Trust Collaborative Research Program, Kilifi, Kenya.
Lewa PoleKenya Medical Research Institute (KEMRI)/Wellcome Trust Collaborative Research Program, Kilifi, Kenya.
John O'BrienMedical Research Council (MRC) Centre for Genomics and Global Health, University of Oxford, Oxford, United Kingdom; Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom; Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom.
Magnus ManskeWellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom.
Dan AlcockWellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom.
Eleanor DruryWellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom.
Mandy SandersWellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom.
Samuel O OyolaWellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom.
Cinzia MalangoneWellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom.
Dushyanth JyothiWellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom.
Alistair MilesMedical Research Council (MRC) Centre for Genomics and Global Health, University of Oxford, Oxford, United Kingdom; Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom; Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom.
Kirk A RockettMedical Research Council (MRC) Centre for Genomics and Global Health, University of Oxford, Oxford, United Kingdom; Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom; Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom.
Bronwyn L MacInnisMedical Research Council (MRC) Centre for Genomics and Global Health, University of Oxford, Oxford, United Kingdom; Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom.
Kevin MarshKenya Medical Research Institute (KEMRI)/Wellcome Trust Collaborative Research Program, Kilifi, Kenya.
Philip BejonMedical Research Council (MRC) Centre for Genomics and Global Health, University of Oxford, Oxford, United Kingdom; Kenya Medical Research Institute (KEMRI)/Wellcome Trust Collaborative Research Program, Kilifi, Kenya; Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom.
Alexis NzilaDepartment of Biology, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia.
Dominic P KwiatkowskiMedical Research Council (MRC) Centre for Genomics and Global Health, University of Oxford, Oxford, United Kingdom; Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom; Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom.
Wellcome Sanger Institute · GBKenya Medical Research Institute · KEGenomics (United Kingdom) · GBMedical Research Council · GBUniversity of Oxford · GBCentre for Human Genetics · GBKing Fahd University of Petroleum and Minerals · SA

Funding

Medical Research Council G0600718Medical Research Council G1002624Wellcome Trust 090532Wellcome Trust 090532/Z/09/ZWellcome Trust 090770Wellcome Trust 090770/Z/09/ZWellcome Trust 092654Wellcome Trust 098051
6 · The paper itself

Abstract

backgroundDrug resistance remains a chief concern for malaria control. In order to determine the genetic markers of drug resistant parasites, we tested the genome-wide associations (GWA) of sequence-based genotypes from 35 Kenyan P. falciparum parasites with the activities of 22 antimalarial drugs. METHODS AND PRINCIPAL

findingsParasites isolated from children with acute febrile malaria were adapted to culture, and sensitivity was determined by in vitro growth in the presence of anti-malarial drugs. Parasites were genotyped using whole genome sequencing techniques. Associations between 6250 single nucleotide polymorphisms (SNPs) and resistance to individual anti-malarial agents were determined, with false discovery rate adjustment for multiple hypothesis testing. We identified expected associations in the pfcrt region with chloroquine (CQ) activity, and other novel loci associated with amodiaquine, quinazoline, and quinine activities. Signals for CQ and primaquine (PQ) overlap in and around pfcrt, and interestingly the phenotypes are inversely related for these two drugs. We catalog the variation in dhfr, dhps, mdr1, nhe, and crt, including novel SNPs, and confirm the presence of a dhfr-164L quadruple mutant in coastal Kenya. Mutations implicated in sulfadoxine-pyrimethamine resistance are at or near fixation in this sample set. CONCLUSIONS/SIGNIFICANCE: Sequence-based GWA studies are powerful tools for phenotypic association tests. Using this approach on falciparum parasites from coastal Kenya we identified known and previously unreported genes associated with phenotypic resistance to anti-malarial drugs, and observe in high-resolution haplotype visualizations a possible signature of an inverse selective relationship between CQ and PQ.

Indexed as

Polymorphism, Single NucleotideAntimalarialsChildDNA, ProtozoanDrug ResistanceGenome-Wide Association StudyHumansKenyaMalaria, FalciparumPlasmodium falciparumAntimalarialsDNA, Protozoan

Identifiers

PMID24809681
PMCPMC4014544
OpenAlexW2062095500

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.