Evidence map›Paper›PMID 27799638›Full record

ArticleThe American journal of tropical medicine and hygiene2016

Longitudinal Pooled Deep Sequencing of the Plasmodium vivax K12 Kelch Gene in Cambodia Reveals a Lack of Selection by Artemisinin.

Nicholas F Brazeau, Nicholas Hathaway, Christian M Parobek, Jessica T Lin, Jeffrey A Bailey, Chanthap Lon, David L Saunders, Jonathan J Juliano

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of tropical medicine and hygiene, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 12% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Selection of CytochromeAntimicrobial agents and chemotherapy · 2021
    Article
  6. Article
  7. Article
  8. Frontiers in cellular and infection microbiology · 2018
    Review
  9. Article
  10. 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

8 authors at 3 institutions in 2 countries.

Nicholas F BrazeauDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina.
Nicholas HathawayProgram in Bioinformatics and Integrative Biology, University of Massachusetts, Worcester, Massachusetts.
Christian M ParobekDoctor of Medicine/Doctor of Philosophy Program, University of North Carolina School of Medicine, Chapel Hill, North Carolina.
Jessica T LinDivision of Infectious Diseases, University of North Carolina School of Medicine, Chapel Hill, North Carolina.
Jeffrey A BaileyProgram in Bioinformatics and Integrative Biology, University of Massachusetts, Worcester, Massachusetts.
Chanthap LonDepartment of Immunology and Medicine, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand.
David L SaundersDepartment of Immunology and Medicine, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand.
Jonathan J JulianoDepartment of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina. jjuliano@med.unc.edu.
University of North Carolina at Chapel Hill · USArmed Forces Research Institute of Medical Science · THUniversity of Massachusetts Chan Medical School · US

Funding

Human copy number polymorphism and severe malariaR01AI099473 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI BAILEY, JEFFREY A. · 2012 to 2015
$2.3M
Genetic determinants of Plasmodium vivax relapseK08AI110651 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI LIN, JESSICA · 2014 to 2018
$869k
Investigating the targets and strain specificity of antibodies against P. vivaxF30AI109979 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI PAROBEK, CHRISTIAN · 2015 to 2017
$108k
NIAID NIH HHS F30 AI109979NIAID NIH HHS K08 AI110651NIAID NIH HHS R01 AI099473
6 · The paper itself

Abstract

The emergence of artemisinin resistance among Plasmodium falciparum in the Greater Mekong subregion threatens malaria control interventions and is associated with multiple unique mutations in K13 (PF3D7_1343700). The aim of this study was to survey Cambodian Plasmodium vivax for mutations in the K13 ortholog (K12, PVX_083080) that might similarly confer artemisinin resistance. Extracted DNA from Cambodian isolates collected between 2009 and 2012 was pooled by province and year and submitted for next-generation sequencing. Single-nucleotide polymorphisms (SNPs) were identified using a pile-up approach that detected minority SNPs. Among the 14 pools, we found six unique SNPs, including three nonsynonymous SNPs, across six codons in K12 However, none of the SNPs were orthologous to artemisinin resistance-conferring mutations in PF3D7_1343700, and nonsynonymous changes did not persist through time within populations. These results suggest a lack of selection in the P. vivax population in Cambodia due to artemisinin drug pressure.

Indexed as

AntimalarialsArtemisininsCambodiaDrug ResistanceGenetic MarkersHumansMalaria, VivaxNucleic Acid Amplification TechniquesPlasmodium vivaxSelection, GeneticAntimalarialsartemisininArtemisininsGenetic Markers

Identifiers

PMID27799638
PMCPMC5154458
OpenAlexW2539932993

What OpenQuestion holds

Textmetadata
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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.