Evidence map›Paper›PMID 24025732›Full record

ArticleMalaria journal2013

Identification of the Plasmodium berghei resistance locus 9 linked to survival on chromosome 9.

Selina E R Bopp, Evelyn Rodrigo, Gonzalo E González-Páez, Mary Frazer, S Whitney Barnes, Clarissa Valim, James Watson, John R Walker, Christian Schmedt, Elizabeth A Winzeler

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.3field-weighted citation impact, top 17% 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

15 citing papers in PubMed, 17 citations in OpenAlex.

  1. Review
  2. Article
  3. Neuroprotective and antimalarial effects ofFrontiers in veterinary science · 2025
    Article
  4. Review
  5. Forward Genetics in Apicomplexa Biology: The Host Side of the Story.Frontiers in cellular and infection microbiology · 2022
    Review
  6. Article
  7. Clinical microbiology reviews · 2019
    Review
  8. Review
  9. Host genetics in malaria: lessons from mouse studies.Mammalian genome : official journal of the International Mammalian Genome Society · 2018
    Review
  10. Genetic analysis of cerebral malaria in the mouse model infected with Plasmodium berghei.Mammalian genome : official journal of the International Mammalian Genome Society · 2018
    Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
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 1 country.

Selina E R BoppDepartment of Pediatrics, University of California, San Diego, School of Medicine, La Jolla, CA, USA. sbopp@hsph.harvard.edu.
Evelyn Rodrigo
Gonzalo E González-Páez
Mary Frazer
S Whitney Barnes
Clarissa Valim
James Watson
John R Walker
Christian Schmedt
Elizabeth A Winzeler
Genomics Institute of the Novartis Research Foundation · USUniversity of California, San Diego · USHarvard University · USScripps Research Institute · US

Funding

Discovery of chemically validated malaria liver stage targetsR01AI090141 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI WINZELER, ELIZABETH A · 2011 to 2019
$3.4M
Investigating the molecular basis of primaquine resistanceR56AI091832 · NIAID · SCRIPPS RESEARCH INSTITUTE, THE · PI YATES III, JOHN R · 2011 to 2011
$474k
NIAID NIH HHS R01 AI090141NIAID NIH HHS R56 AI091832-01
6 · The paper itself

Abstract

backgroundOne of the main causes of mortality from severe malaria in Plasmodium falciparum infections is cerebral malaria (CM). An important host genetic component determines the susceptibility of an individual to develop CM or to clear the infection and become semi-immune. As such, the identification of genetic loci associated with susceptibility or resistance may serve to modulate disease severity. METHODOLOGY: The Plasmodium berghei mouse model for experimental cerebral malaria (ECM) reproduces several disease symptoms seen in human CM, and two different phenotypes, a susceptible (FVB/NJ) and a resistant mouse strain (DBA/2J), were examined.

resultsFVB/NJ mice died from infection within ten days, whereas DBA/2J mice showed a gender bias: males survived on average nineteen days and females either died early with signs of ECM or survived for up to three weeks. A comparison of brain pathology between FVB/NJ and DBA/2J showed no major differences with regard to brain haemorrhages or the number of parasites and CD3+ cells in the microvasculature. However, significant differences were found in the peripheral blood of infected mice: For example resistant DBA/2J mice had significantly higher numbers of circulating basophils than did FVB/NJ mice on day seven. Analysis of the F2 offspring from a cross of DBA/2J and FVB/NJ mice mapped the genetic locus of the underlying survival trait to chromosome 9 with a Lod score of 4.9. This locus overlaps with two previously identified resistance loci (char1 and pymr) from a blood stage malaria model.

conclusionsSurvival best distinguishes malaria infections between FVB/NJ and DBA/2J mice. The importance of char1 and pymr on chromosome 9 in malaria resistance to P. berghei was confirmed. In addition there was an association of basophil numbers with survival.

Indexed as

Chromosomes, Human, Pair 9Disease ResistanceGenetic LociAnimalsBasophilsDisease Models, AnimalFemaleHumansMalaria, CerebralMaleMicePlasmodium bergheiSurvival Analysis

Identifiers

PMID24025732
PMCPMC3848760
OpenAlexW2121714223

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.