Evidence map›Paper›PMID 22689574›Full record

ArticleThe Journal of biological chemistry2012

The C5 convertase is not required for activation of the terminal complement pathway in murine experimental cerebral malaria.

Theresa N Ramos, Meghan M Darley, Sebastian Weckbach, Philip F Stahel, Stephen Tomlinson, Scott R Barnum

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 30 citations in OpenAlex.

  1. Host complement C3 promotes malaria transmission by killing symbiotic bacteria in the mosquito midgut.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Article
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  4. Review
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  6. 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
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  16. 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

6 authors at 3 institutions in 1 country.

Theresa N RamosDepartment of Microbiology, University of Alabama, Birmingham, Alabama 35294, USA.
Meghan M Darley
Sebastian Weckbach
Philip F Stahel
Stephen Tomlinson
Scott R Barnum
University of Alabama at Birmingham · USUniversity of Colorado Denver · USMedical University of South Carolina · US

Funding

IMMUNOLOGIC DISEASES AND BASIC IMMUNOLOGYT32AI007051 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Laurie Ellen Harrington · 1985 to 2026
$13.1M
Controlling complement in cerebral ischemic injuryR01HL082485 · NHLBI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI TOMLINSON, STEPHEN · 2006 to 2010
$1.6M
The role of the terminal complement pathway in experimental cerebral malaria.F31NS077811 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI RAMOS, THERESA N · 2012 to 2012
$24k
NHLBI NIH HHS HL82485NHLBI NIH HHS R01 HL082485NIAID NIH HHS AI08382NIAID NIH HHS T32 AI007051NIAID NIH HHS T32 AI07051NINDS NIH HHS F31 NS077811NINDS NIH HHS NS077811
6 · The paper itself

Abstract

Cerebral malaria (CM) is the most severe manifestation of clinical malaria syndromes and has a high fatality rate especially in the developing world. Recent studies demonstrated that C5(-/-) mice are resistant to experimental CM (ECM) and that protection was due to the inability to form the membrane attack complex. Unexpectedly, we observed that C4(-/-) and factor B(-/-) mice were fully susceptible to disease, indicating that activation of the classical or alternative pathways is not required for ECM. C3(-/-) mice were also susceptible to ECM, indicating that the canonical C5 convertases are not required for ECM development and progression. Abrogation of ECM by treatment with anti-C9 antibody and detection of C5a in serum of C3(-/-) mice confirmed that C5 activation occurs in ECM independent of C5 convertases. Our data indicate that activation of C5 in ECM likely occurs via coagulation enzymes of the extrinsic protease pathway.

Indexed as

AnimalsComplement ActivationComplement C3Complement C3-C5 ConvertasesComplement C4Complement Factor BMalaria, CerebralMiceMice, Inbred BALB CMice, KnockoutPlasmodium bergheiComplement C3Complement C3-C5 ConvertasesComplement C4Complement Factor B

Identifiers

PMID22689574
PMCPMC3397900
OpenAlexW2009251616

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.