Evidence map›Paper›PMID 27185931›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

Severe adult malaria is associated with specific PfEMP1 adhesion types and high parasite biomass.

Maria Bernabeu, Samuel A Danziger, Marion Avril, Marina Vaz, Prasad H Babar, Andrew J Brazier, Thurston Herricks, Jennifer N Maki, Ligia Pereira, Anjali Mascarenhas and 5 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed, 2 pooled it
13.9field-weighted citation impact, top 1% 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

79 citing papers in PubMed, 2 syntheses or guidelines pooled it, 117 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  8. Febrile temperature enhancesbioRxiv : the preprint server for biology · 2025
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  16. Broadly inhibitory antibodies against severe malaria virulence proteins.bioRxiv : the preprint server for biology · 2024
    Article
  17. Article
  18. Review
  19. Variable Surface Antigens ofProtein and peptide letters · 2024
    Review
  20. Review

19 more citing papers are in PubMed but not listed here.

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

15 authors at 4 institutions in 2 countries.

Maria BernabeuCenter for Infectious Disease Research, Seattle, WA 98109;
Samuel A DanzigerCenter for Infectious Disease Research, Seattle, WA 98109;
Marion AvrilCenter for Infectious Disease Research, Seattle, WA 98109;
Marina VazDepartment of Medicine, Goa Medical College & Hospital, Bambolim, Goa 403202, India;
Prasad H BabarDepartment of Chemistry, University of Washington, Seattle, WA 98195; Department of Global Health, University of Washington, Seattle, WA 98195.
Andrew J BrazierCenter for Infectious Disease Research, Seattle, WA 98109;
Thurston HerricksDepartment of Chemistry, University of Washington, Seattle, WA 98195; Department of Global Health, University of Washington, Seattle, WA 98195.
Jennifer N MakiDepartment of Chemistry, University of Washington, Seattle, WA 98195; Department of Global Health, University of Washington, Seattle, WA 98195.
Ligia PereiraDepartment of Chemistry, University of Washington, Seattle, WA 98195; Department of Global Health, University of Washington, Seattle, WA 98195.
Anjali MascarenhasDepartment of Chemistry, University of Washington, Seattle, WA 98195; Department of Global Health, University of Washington, Seattle, WA 98195.
Edwin GomesDepartment of Medicine, Goa Medical College & Hospital, Bambolim, Goa 403202, India;
Laura CheryDepartment of Chemistry, University of Washington, Seattle, WA 98195; Department of Global Health, University of Washington, Seattle, WA 98195.
John D AitchisonCenter for Infectious Disease Research, Seattle, WA 98109;
Pradipsinh K RathodDepartment of Chemistry, University of Washington, Seattle, WA 98195; Department of Global Health, University of Washington, Seattle, WA 98195.
Joseph D SmithCenter for Infectious Disease Research, Seattle, WA 98109; joe.smith@cidresearch.org.
University of Washington · USInfectious Disease Research Institute · USGoa Medical College · INCenter for Infectious Disease Research · US

Funding

Shared TechnologyU19AI089688 · NIAID · UNIVERSITY OF WASHINGTON · PI RATHOD, PRADIPSINH K. · 2010 to 2023
$22.4M
TR&D Project 4. The Imaging Stage: Multiscale Spatiotemporal Modeling of Macromolecular Systems in Cellular NeighborhoodsP41GM109824 · NIGMS · ROCKEFELLER UNIVERSITY · PI ROUT, MICHAEL P · 2014 to 2023
$18.8M
NIAID NIH HHS U19 AI089688NIGMS NIH HHS P41 GM109824
6 · The paper itself

Abstract

The interplay between cellular and molecular determinants that lead to severe malaria in adults is unexplored. Here, we analyzed parasite virulence factors in an infected adult population in India and investigated whether severe malaria isolates impair endothelial protein C receptor (EPCR), a protein involved in coagulation and endothelial barrier permeability. Severe malaria isolates overexpressed specific members of the Plasmodium falciparum var gene/PfEMP1 (P. falciparum erythrocyte membrane protein 1) family that bind EPCR, including DC8 var genes that have previously been linked to severe pediatric malaria. Machine learning analysis revealed that DC6- and DC8-encoding var transcripts in combination with high parasite biomass were the strongest indicators of patient hospitalization and disease severity. We found that DC8 CIDRα1 domains from severe malaria isolates had substantial differences in EPCR binding affinity and blockade activity for its ligand activated protein C. Additionally, even a low level of inhibition exhibited by domains from two cerebral malaria isolates was sufficient to interfere with activated protein C-barrier protective activities in human brain endothelial cells. Our findings demonstrate an interplay between parasite biomass and specific PfEMP1 adhesion types in the development of adult severe malaria, and indicate that low impairment of EPCR function may contribute to parasite virulence.

Indexed as

AdultAntigens, CDBiomassEndothelial Protein C ReceptorFemaleHumansMachine LearningMalaria, FalciparumMaleMiddle AgedPlasmodium falciparumProtein CProtein DomainsProtozoan ProteinsReceptors, Cell SurfaceVirulenceAntigens, CDEndothelial Protein C Receptorerythrocyte membrane protein 1, Plasmodium falciparumPROCR protein, humanProtein CProtozoan ProteinsReceptors, Cell SurfaceEPCRmalariaPfEMP1Plasmodium falciparumvar

Identifiers

PMID27185931
PMCPMC4988613
OpenAlexW2403085872

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.