Evidence map›Paper›PMID 24885042›Full record

ArticleJournal of neuroinflammation2014

Deficiency of complement receptors CR2/CR1 in Cr2⁻/⁻ mice reduces the extent of secondary brain damage after closed head injury.

Miriam D Neher, Megan C Rich, Chesleigh N Keene, Sebastian Weckbach, Ashley L Bolden, Justin T Losacco, Jenée Patane, Michael A Flierl, Liudmila Kulik, V Michael Holers and 1 more

Open access · goldAbstract read
In one paragraph

Article in Journal of neuroinflammation, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

18 citing papers in PubMed, 42 citations in OpenAlex.

  1. Review
  2. Article
  3. Tackling Neuroinflammation After Traumatic Brain Injury: Complement Inhibition as a Therapy for Secondary Injury.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. IVIg attenuates complement and improves spinal cord injury outcomes in mice.Annals of clinical and translational neurology · 2016
    Article
  15. Article
  16. Review
  17. Article
  18. 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

11 authors at 2 institutions in 1 country.

Miriam D Neher
Megan C Rich
Chesleigh N Keene
Sebastian Weckbach
Ashley L Bolden
Justin T Losacco
Jenée Patane
Michael A Flierl
Liudmila Kulik
V Michael Holers
Philip F StahelDepartment of Orthopedic Surgery, Denver Health Medical Center, University of Colorado School of Medicine, 777 Bannock Street, Denver CO 80204, USA. philip.stahel@dhha.org.
University of Colorado Denver · USDenver Health Medical Center · US

Funding

Complement in the Pathogenesis of Autoimmune ArthritisR01AR051749 · NIAMS · UNIVERSITY OF COLORADO DENVER · PI Vernon Michael Holers · 2004 to 2026
$6.7M
NIAMS NIH HHS AR051749
6 · The paper itself

Abstract

Complement activation at the C3 convertase level has been associated with acute neuroinflammation and secondary brain injury after severe head trauma. The present study was designed to test the hypothesis that Cr2-/- mice, which lack the receptors CR2/CD21 and CR1/CD35 for complement C3-derived activation fragments, are protected from adverse sequelae of experimental closed head injury. Adult wild-type mice and Cr2-/- mice on a C57BL/6 genetic background were subjected to focal closed head injury using a standardized weight-drop device. Head-injured Cr2-/- mice showed significantly improved neurological outcomes for up to 72 hours after trauma and a significantly decreased post-injury mortality when compared to wild-type mice. In addition, the Cr2-/- genotype was associated with a decreased extent of neuronal cell death at seven days post-injury. Western blot analysis revealed that complement C3 levels were reduced in the injured brain hemispheres of Cr2-/- mice, whereas plasma C3 levels remained unchanged, compared to wild-type mice. Finally, head-injured Cr2-/- had an attenuated extent of post-injury C3 tissue deposition, decreased astrocytosis and microglial activation, and attenuated immunoglobulin M deposition in injured brains compared to wild-type mice. Targeting of these receptors for complement C3 fragments (CR2/CR1) may represent a promising future approach for therapeutic immunomodulation after traumatic brain injury.

Indexed as

AnimalsAstrocytesBrainComplement C3Craniocerebral TraumaDisease Models, Animalfas ReceptorFemaleHomeodomain ProteinsImmunoglobulin MMaleMiceMice, Inbred C57BLMice, KnockoutMicrogliaNeuronsComplement C3fas ReceptorHomeodomain ProteinsImmunoglobulin MPhosphopyruvate HydrataseProto-Oncogene Proteins c-bcl-2RAG-1 proteinReceptors, Complement 3bReceptors, Complement 3d

Identifiers

PMID24885042
PMCPMC4050415
OpenAlexW2142518256

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.