Evidence map›Paper›PMID 22929537›Full record

ArticleMalaria journal2012

Genetic variation in histidine rich proteins among Indian Plasmodium falciparum population: possible cause of variable sensitivity of malaria rapid diagnostic tests.

Navin Kumar, Jai Pn Singh, Veena Pande, Neelima Mishra, Bina Srivastava, Ridhima Kapoor, Neena Valecha, Anupkumar R Anvikar

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 2 pooled it
5.0field-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

37 citing papers in PubMed, 2 syntheses or guidelines pooled it, 95 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  13. Genetic deletions and high diversity ofFrontiers in epidemiology · 2022
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  16. Review
  17. A Comprehensive Analysis of the Genetic Diversity ofFrontiers in cellular and infection microbiology · 2021
    Article
  18. Article
  19. Article
  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

8 authors at 2 institutions in 1 country.

Navin KumarNational Institute of Malaria Research (ICMR), Sector 8, Dwarka, New Delhi, 110077, India.
Jai Pn Singh
Veena Pande
Neelima Mishra
Bina Srivastava
Ridhima Kapoor
Neena Valecha
Anupkumar R Anvikar
National Institute of Malaria Research · INKumaun University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRapid diagnostic tests (RDTs) have revolutionized the diagnosis of malaria. Among the various factors affecting RDTs sensitivity is genetic variation of the antigen used. The genetic variation in PfHRP2 and PfHRP3 proteins was studied among the Indian Plasmodium falciparum isolates.

methodsOne hundred and forty isolates of P. falciparum were collected from six geographical regions of India. Target genes encoding PfHRP2 and PfHRP3 antigens were sequenced to study genetic polymorphism. Minimum detection limit giving a positive rapid diagnostic test was also determined.

resultsExtensive variations were observed in amino acid repeat types of PfHRP2 and PfHRP3. PfHRP2 exhibited more polymorphism than PfHRP3. Significant relation was observed between type 2 and type 7 repeats and RDT detection rate as higher number of these repeats showed better sensitivity with RDTs.

conclusionThe results provide insights into the genetic diversity of Pfhrp2 and Pfhrp3 genes among Indian P. falciparum population and its relation to RDT sensitivity.

Indexed as

Genetic VariationAntigens, ProtozoanClinical Laboratory TechniquesDiagnostic Tests, RoutineDNA, ProtozoanHistidine-Rich GlycoproteinHumansIndiaMalaria, FalciparumMolecular Sequence DataPlasmodium falciparumProteinsSensitivity and SpecificitySequence Analysis, DNAAntigens, ProtozoanDNA, ProtozoanHistidine-Rich GlycoproteinProteins

Identifiers

PMID22929537
PMCPMC3475030
OpenAlexW2111529803

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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.