Evidence map›Paper›PMID 21157470›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2011

Traumatic brain injury in mice lacking the K channel, TREK-1.

Khodadad Namiranian, Christa D Brink, Jerry Clay Goodman, Claudia S Robertson, Robert M Bryan

Abstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.5field-weighted citation impact, top 30% 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

9 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Pulmonary epithelial barrier function: some new players and mechanisms.American journal of physiology. Lung cellular and molecular physiology · 2015
    Review
  8. Article
  9. 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

5 authors at 1 institution in 1 country.

Khodadad NamiranianDepartment of Anesthesiology, Baylor College of Medicine, Houston, Texas 77030, USA.
Christa D Brink
Jerry Clay Goodman
Claudia S Robertson
Robert M Bryan
Baylor College of Medicine · US

Funding

Vascular Mechanisms of Secondary Injury After Traumatic Brain InjuryP01NS038660 · NINDS · BAYLOR COLLEGE OF MEDICINE · PI ROBERTSON, CLAUDIA S · 1999 to 2012
$12.1M
EDHF in the Cerebral CirculationR01NS046666 · NINDS · BAYLOR COLLEGE OF MEDICINE · PI BRYAN, ROBERT M · 2005 to 2009
$1.7M
NINDS NIH HHS P01 NS038660NINDS NIH HHS R01 NS046666
6 · The paper itself

Abstract

The purpose of this study was to determine whether the potassium channel, TREK-1, was neuroprotective after traumatic brain injury (TBI). Since there are no selective blockers, we used TREK-1 knockout (KO) mice for our study. Wild-type (WT) and TREK-1 KO mice were anesthetized and subjected to controlled-cortical impact injury (deformation of the brain by 1.5 mm by a 3-mm diameter rod traveling at a 3 m/s). Laser Doppler perfusion (LDP) decreased by ∼80% in the injured cortex and remained at that level in both WT and TREK-1 KO mice (n=10 and 11, respectively). Laser Doppler perfusion decreased by 50% to 60% in cortical areas directly adjacent to the site of injury. There were no statistical differences in LDP between genotype. The contusion volume, determined 15 days after the TBI using hematoxylin and eosin-stained coronal brain sections, was 4.1±0.8 (n=10) and 5.1±0.5 (n=11) mm(3) for WT and TREK-1 KO, respectively (not significant, P=0.34). Cell counts of viable neurons in the CA1 and CA3 regions of the hippocampus were similar between WT and TREK-1 KO mice (P=0.51 and 0.84 for CA1 and CA3, respectively). We conclude that TREK-1 expression does not provide brain protection after TBI.

Indexed as

AnimalsBrain InjuriesCell CountCell SurvivalCerebral CortexHippocampusLaser-Doppler FlowmetryMaleMiceMice, KnockoutNeuronsNeuroprotective AgentsPotassium Channels, Tandem Pore DomainRegional Blood FlowNeuroprotective Agentspotassium channel protein TREK-1Potassium Channels, Tandem Pore Domain

Identifiers

PMID21157470
PMCPMC3063636
OpenAlexW2015805930

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.