Evidence map›Paper›PMID 26293655›Full record

ArticleMalaria journal2015

Assessment of an automated capillary system for Plasmodium vivax microsatellite genotyping.

Paulo Manrique, Mari Hoshi, Manuel Fasabi, Oscar Nolasco, Pablo Yori, Martiza Calderón, Robert H Gilman, Margaret N Kosek, Joseph M Vinetz, Dionicia Gamboa

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.7field-weighted citation impact, top 15% 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, 12 citations in OpenAlex.

  1. Article
  2. Genetic diversity ofFrontiers in cellular and infection microbiology · 2024
    Article
  3. Article
  4. Validation of a multilocus genotyping scheme for subtypingFood and waterborne parasitology · 2022
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Epidemiology of Plasmodium vivax Malaria in Peru.The American journal of tropical medicine and hygiene · 2016
    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

10 authors at 4 institutions in 2 countries.

Paulo ManriqueMalaria Laboratory, Institute of Tropical Medicine Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru. paulonvnv@gmail.com.
Mari HoshiMalaria Laboratory, Institute of Tropical Medicine Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru. mhoshi87@gmail.com.
Manuel FasabiInstituto Nacional de Salud, Lima, Peru. manuelma1@hotmail.com.
Oscar NolascoMalaria Laboratory, Institute of Tropical Medicine Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru. oscarnol@hotmail.com.
Pablo YoriDepartment of International Health, Johns Hopkins School of Public Health, Baltimore, MD, USA. pyori@jhsph.edu.
Martiza CalderónDivision of Infectious Diseases, Department of Medicine, University of California San Diego, La Jolla, CA, USA. maritza.calderon.s@upch.pe.
Robert H GilmanDepartment of International Health, Johns Hopkins School of Public Health, Baltimore, MD, USA. gilmanbob@gmail.com.
Margaret N KosekDepartment of International Health, Johns Hopkins School of Public Health, Baltimore, MD, USA. mkosek@jhmi.edu.
Joseph M VinetzMalaria Laboratory, Institute of Tropical Medicine Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru. jvinetz@ucsd.edu.
Dionicia GamboaMalaria Laboratory, Institute of Tropical Medicine Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru. dionigamboa@yahoo.com.
Universidad Peruana Cayetano Heredia · PEJohns Hopkins University · USUniversity of California, San Diego · USInstituto Nacional de Salud · PE

Funding

Sugar-feeding behavior of the malaria vector Nyssorhynchus darlingi and development of effective attractive toxic sugar baits (ATSB) to increase intervention success in PeruU19AI089681 · NIAID · YALE UNIVERSITY · PI GAZZINELLI, RICARDO TOSTES · 2010 to 2023
$20.1M
Human Reservoirs of Plasmodium vivax Transmission in the Peruvian AmazonR01AI067727 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI VINETZ, JOSEPH M. · 2006 to 2010
$3.4M
Translational Research Development for Endemic Infectious Diseases of AmazoniaD43TW007120 · FIC · YALE UNIVERSITY · PI VINETZ, JOSEPH M. · 2004 to 2020
$3.0M
Patient-Oriented Research in Tropical Infectious DiseasesK24AI068903 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI VINETZ, JOSEPH M. · 2006 to 2015
$1.5M
FIC NIH HHS D43 TW007120FIC NIH HHS D43TW007120Medical Research Council MR/K007467/1NIAID NIH HHS K24 AI068903NIAID NIH HHS K24AI068903NIAID NIH HHS R01 AI067727NIAID NIH HHS R01AI067727NIAID NIH HHS U19 AI089681NIAID NIH HHS U19AI089681
6 · The paper itself

Abstract

backgroundSeveral platforms have been used to generate the primary data for microsatellite analysis of malaria parasite genotypes. Each has relative advantages but share a limitation of being time- and cost-intensive. A commercially available automated capillary gel cartridge system was assessed in the microsatellite analysis of Plasmodium vivax diversity in the Peruvian Amazon.

methodsThe reproducibility and accuracy of a commercially-available automated capillary system, QIAxcel, was assessed using a sequenced PCR product of 227 base pairs. This product was measured 42 times, then 27 P. vivax samples from Peruvian Amazon subjects were analyzed with this instrument using five informative microsatellites. Results from the QIAxcel system were compared with a Sanger-type sequencing machine, the ABI PRISM(®) 3100 Genetic Analyzer.

resultsSignificant differences were seen between the sequenced amplicons and the results from the QIAxcel instrument. Different runs, plates and cartridges yielded significantly different results. Additionally, allele size decreased with each run by 0.045, or 1 bp, every three plates. QIAxcel and ABI PRISM systems differed in giving different values than those obtained by ABI PRISM, and too many (i.e. inaccurate) alleles per locus were also seen with the automated instrument.

conclusionsWhile P. vivax diversity could generally be estimated using an automated capillary gel cartridge system, the data demonstrate that this system is not sufficiently precise for reliably identifying parasite strains via microsatellite analysis. This conclusion reached after systematic analysis was due both to inadequate precision and poor reproducibility in measuring PCR product size.

Indexed as

DNA, ProtozoanHumansMalaria, VivaxMicrosatellite RepeatsMolecular EpidemiologyMolecular TypingPeruPlasmodium vivaxReproducibility of ResultsDNA, Protozoan

Identifiers

PMID26293655
PMCPMC4546211
OpenAlexW2100180641

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.