Evidence map›Paper›PMID 17121999›Full record

ArticleJournal of clinical microbiology2007

A multiplex ligase detection reaction-fluorescent microsphere assay for simultaneous detection of single nucleotide polymorphisms associated with Plasmodium falciparum drug resistance.

Eric P Carnevale, Drew Kouri, Jeana T DaRe, David T McNamara, Ivo Mueller, Peter A Zimmerman

Open access · greenAbstract read
In one paragraph

Article in Journal of clinical microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

21 citing papers in PubMed, 39 citations in OpenAlex.

  1. Trial
  2. Fluorescence-Based Detection ofMethods and protocols · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Diagnosing the drug resistance signature inJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2021
    Review
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  19. Drug-resistant malaria - an insight.The FEBS journal · 2007
    Review
  20. 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

6 authors at 4 institutions in 2 countries.

Eric P CarnevaleThe Center for Global Health and Diseases, Case Western Reserve University, Wolstein Research Building, Room 4-125, 2103 Cornell Rd., Cleveland, OH 44106-7286, USA.
Drew Kouri
Jeana T DaRe
David T McNamara
Ivo Mueller
Peter A Zimmerman
Case Western Reserve University · USCenter for Global Health · USCornell University · USPapua New Guinea Institute of Medical Research · PG

Funding

Chloroquine Resistance and pfcrt Variants in PNGR01AI052312 · NIAID · CASE WESTERN RESERVE UNIVERSITY · PI ZIMMERMAN, PETER A. · 2002 to 2006
$2.7M
NIAID NIH HHS AI52312NIAID NIH HHS R01 AI052312
6 · The paper itself

Abstract

Incomplete malaria control efforts have resulted in a worldwide increase in resistance to drugs used to treat the disease. A complex array of mutations underlying antimalarial drug resistance complicates efficient monitoring of parasite populations and limits the success of malaria control efforts in regions of endemicity. To improve the surveillance of Plasmodium falciparum drug resistance, we developed a multiplex ligase detection reaction-fluorescent-microsphere-based assay (LDR-FMA) that identifies single nucleotide polymorphisms (SNPs) in the P. falciparum dhfr (9 alleles), dhps (10 alleles), and pfcrt (3 alleles) genes associated with resistance to Fansidar and chloroquine. We evaluated 1,121 blood samples from study participants in the Wosera region of Papua New Guinea, where malaria is endemic. Results showed that 468 samples were P. falciparum negative and 453 samples were P. falciparum positive by a Plasmodium species assay and all three gene assays (concordance, 82.2%). For P. falciparum infections where the assay for each gene was positive, 2 samples carried resistance alleles for all three genes, 299 carried resistance alleles for dhfr and pfcrt, 131 carried resistance alleles for only one gene (dhfr [n = 40], dhps [n = 1], or pfcrt [n = 90]), and 21 carried only sensitive alleles at all three genes. Mixed-strain infections characterized 100 samples. Overall, 95.4% (432/453) of P. falciparum-infected samples carried at least one allele associated with resistance to Fansidar or chloroquine. In view of the fact that 86.3% (391/453) of P. falciparum-infected samples carried pfcrt mutations, chloroquine is largely ineffective against P. falciparum in Papua New Guinea. Surveillance of additional dhfr and dhps polymorphisms in order to monitor the continued effectiveness of Fansidar is recommended.

Indexed as

Polymorphism, Single NucleotideAnimalsAntimalarialsChloroquineDihydropteroate SynthaseDrug CombinationsDrug ResistanceFluorescenceHumansLigasesMalaria, FalciparumMembrane Transport ProteinsMicrospheresParasitic Sensitivity TestsPlasmodium falciparumProtozoan ProteinsAntimalarialsChloroquineDihydropteroate SynthaseDrug Combinationsfanasil, pyrimethamine drug combinationLigasesMembrane Transport ProteinsPfCRT protein, Plasmodium falciparumProtozoan ProteinsPyrimethamineSulfadoxineTetrahydrofolate Dehydrogenase

Identifiers

PMID17121999
PMCPMC1829096
OpenAlexW2047791802

What OpenQuestion holds

Textmetadata
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.