Evidence map›Paper›PMID 26297799›Full record

ArticleActa tropica2015

Genetic diversity of Plasmodium falciparum histidine-rich protein 2 in the China-Myanmar border area.

Peipei Li, Hua Xing, Zhenjun Zhao, Zhaoqing Yang, Yaming Cao, Wenli Li, Guiyun Yan, Jetsumon Sattabongkot, Liwang Cui, Qi Fan

Abstract read
In one paragraph

Article in Acta tropica, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

47 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Prevalence ofBulletin of the World Health Organization · 2020
    Pooled it
  3. Article
  4. Article
  5. Review
  6. Low prevalence ofFrontiers in epidemiology · 2026
    Article
  7. Article
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  14. Article
  15. Review
  16. High-throughputeLife · 2022
    Article
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  18. Review
  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

10 authors.

Peipei LiDalian Institute of Biotechnology, Dalian, Liaoning, PR China. Electronic address: ppttkx@163.com.
Hua XingDalian University of Technology, Dalian, Liaoning, PR China. Electronic address: xinghua_2013@outlook.com.
Zhenjun ZhaoDalian Institute of Biotechnology, Dalian, Liaoning, PR China. Electronic address: zhenzhen1029@126.com.
Zhaoqing YangDepartment of Parasitology, Kunming Medical University, Kunming, Yunnan, PR China. Electronic address: zhaoqingy@yahoo.com.
Yaming CaoDepartment of Immunology, China Medical University, Shenyang, Liaoning 110001, PR China. Electronic address: ymcao@mail.cmu.edu.cn.
Wenli LiDalian University of Technology, Dalian, Liaoning, PR China. Electronic address: biolwl@dlut.edu.cn.
Guiyun YanProgram in Public Health, University of California, Irvine, CA, USA. Electronic address: guiyuny@uci.edu.
Jetsumon SattabongkotFaculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand. Electronic address: jetsumon.pra@mahidol.ac.th.
Liwang CuiDepartment of Entomology, Pennsylvania State University, University Park, PA 16802, USA. Electronic address: luc2@psu.edu.
Qi FanDalian Institute of Biotechnology, Dalian, Liaoning, PR China. Electronic address: qifan10001@163.com.

Funding

Southeast Asia Malaria Research CenterU19AI089672 · NIAID · UNIVERSITY OF SOUTH FLORIDA · PI CUI, LIWANG · 2010 to 2023
$28.9M
NIAID NIH HHS U19 AI089672NIAID NIH HHS U19AI089672
6 · The paper itself

Abstract

Deletion of the Plasmodium falciparum histidine-rich protein 2 (pfhrp2) gene may affect the performance of PfHRP2-based rapid diagnostic tests (RDTs). Here we investigated the genetic diversity of the pfhrp2 gene in clinical parasite isolates collected in recent years from the China-Myanmar border area. Deletion of pfhrp2 has been identified in 4 out of 97 parasite isolates. Sequencing of the pfhrp2 exon2 from 67 isolates revealed a high level of genetic diversity in pfhrp2, which is reflected in the presence of many repeat types and their variants, as well as variable copy numbers and different arrangements of these repeats in parasite isolates. In addition, we observed pfhrp3 deletion in three of the four parasites harboring pfhrp2 deletion, suggesting of double deletions of both genes in these three isolates. Analysis of two cases, which were P. falciparum-positive by microscopy and PCR but failed by two PfHRP2-based RDTs, did not find pfhrp2 deletion. Further correlational studies of pfhrp2 polymorphisms with detection sensitivity are needed to identify factors influencing the performance of RDTs in malaria-endemic areas.

Indexed as

Antigens, ProtozoanChinaDiagnostic Tests, RoutineGenetic VariationHistidine-Rich GlycoproteinHumansMalaria, FalciparumMyanmarPlasmodium falciparumPolymerase Chain ReactionPolymorphism, GeneticProteinsProtozoan ProteinsSequence DeletionAntigens, ProtozoanHistidine-Rich GlycoproteinProteinsProtozoan ProteinsDeletionMalariaPfhrp2Rapid diagnostic testsVariation

Identifiers

PMID26297799
PMCPMC4918506

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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.