Evidence map›Paper›PMID 19555673›Full record

ArticleBrain research2009

Exercise-induced improvement in cognitive performance after traumatic brain injury in rats is dependent on BDNF activation.

Grace Sophia Griesbach, David Allen Hovda, Fernando Gomez-Pinilla

4 registry-linked trialsAbstract read
In one paragraph

Article in Brain research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 4 registered trials, which are not on this map. Cited by 129 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
129citing papers in PubMed, 2 pooled it
12.6field-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.

NCT02276079 nacompletednot on this mapstarted 2015, after this paper: background citation

The Effect of Exercise on Neurorecovery Following Mild Traumatic Brain Injury

TypeinterventionalSponsorUniversity of FloridaRan2015 to 2016Enrolled39ConditionsBrain ConcussionArmsAerobic Exercise, Non-Aerobic Exercise
NCT02362347 nacompletednot on this mapstarted 2015, after this paper: background citation

Investigating Novel Treatments for Concussion: Impact of Compression Vest on Rehabilitation Outcomes

TypeinterventionalSponsorWestern University, CanadaRan2015 to 2019Enrolled153ConditionsBrain Concussion, Post-Concussion SyndromeArmsLondon Health Sciences Centre - Compression Vest, exercise
NCT03895450 nacompletednot on this mapstarted 2019, after this paper: background citation

Improving Symptom Burden in Individuals With Persistent Post Concussive Symptoms: A Step-wise Aerobic Exercise Trial

TypeinterventionalSponsorUniversity of CalgaryRan2019 to 2023Enrolled52ConditionsBrain Injuries, Traumatic, Concussion, Brain, Mild Traumatic Brain Injury, Post-Concussion SyndromeArmsAerobic Exercise Protocol, Stretching Protocol
NCT05786729 phase1 / phase2enrolling by invitationnot on this mapstarted 2022, after this paper: background citation

Effects of Aerobic Exercise and Rehabilitation After Traumatic Brain Injury

TypeinterventionalSponsorCentre for Neuro SkillsRan2022 to 2028Enrolled190ConditionsTraumatic Brain InjuryArmsAerobic Exercise (AER), Rehabilitation
3 · Its place in the literature

Who cites it

129 citing papers in PubMed, 2 syntheses or guidelines pooled it, 280 citations in OpenAlex.

  1. Pooled it
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  3. The Effect of Aerobic Exercise on Concussion Recovery: A Pilot Clinical Trial.Journal of the International Neuropsychological Society : JINS · 2021
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  4. Safety and efficacy of Cerebrolysin in acute brain injury and neurorecovery: CAPTAIN I-a randomized, placebo-controlled, double-blind, Asian-Pacific trial.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2020
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69 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

3 authors at 2 institutions in 1 country.

Grace Sophia GriesbachDepartment of Neurosurgery, David Geffen School of Medicine, UCLA, Los Angeles, CA 90095-7039, USA. ggriesbach@mednet.ucla.edu
David Allen Hovda
Fernando Gomez-Pinilla
UCLA Health · USUniversity of California, Los Angeles · US

Funding

Restoration of Homeostasis After Brain TraumaR01NS050465 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GOMEZ-PINILLA, FERNANDO · 2005 to 2019
$5.5M
Using glutamatergic pharmacotherapy to optimize TBI recoveryR01NS027544 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI HOVDA, DAVID A · 1990 to 2017
$3.8M
The role of traumatic brain injury stress response on exercise therapyR01NS061960 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GRIESBACH, GRACE S. · 2008 to 2012
$1.8M
Voluntary Exercise Therapy after Traumatic Brain InjuryR21NS048535 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI GRIESBACH, GRACE SOPHIA · 2005 to 2006
$388k
NINDS NIH HHS NS27544NINDS NIH HHS NS50465NINDS NIH HHS R01 NS027544NINDS NIH HHS R01 NS050465NINDS NIH HHS R01 NS061960NINDS NIH HHS R21 NS048535PHS HHS NSO48535
6 · The paper itself

Abstract

We have previously shown that voluntary exercise upregulates brain derived neurotrophic factor (BDNF) within the hippocampus and is associated with an enhancement of cognitive recovery after a lateral fluid percussion injury (FPI). In order to determine if BDNF is critical to this effect we used an immunoadhesin chimera (TrkB-IgG) that inactivates free BDNF. This BDNF inhibitor was administered to adult male rats two weeks after they had received a mild fluid percussion injury (FPI) or sham surgery. These animals were then housed with or without access to a running wheel (RW) from post-injury-day (PID) 14 to 20. On PID 21, rats were tested for spatial learning in a Morris Water Maze. Results showed that exercise counteracted the cognitive deficits associated with the injury. However this exercise-induced cognitive improvement was attenuated in the FPI-RW rats that were treated with TrkB-IgG. Molecules important for synaptic plasticity and learning were measured in a separate group of rats that were sacrificed immediately after exercise (PID 21). Western blot analyses showed that exercise increased the mature form of BDNF, synapsin I and cyclic-AMP response-element-binding protein (CREB) in the vehicle treated Sham-RW group. However, only the mature form of BDNF and CREB were increased in the vehicle treated FPI-RW group. Blocking BDNF (pre administration of TrkB-IgG) greatly reduced the molecular effects of exercise in that exercise-induced increases of BDNF, synapsin I and CREB were not observed. These studies provide evidence that BDNF has a major role in exercise's cognitive effects in traumatically injured brain.

Indexed as

Analysis of VarianceAnimalsBlotting, WesternBrain-Derived Neurotrophic FactorBrain InjuriesCognitionCyclic AMP Response Element-Binding ProteinHippocampusImmunoglobulinsMaleMaze LearningMicrospheresPhosphorylationPhysical Conditioning, AnimalRatsRats, Sprague-DawleyBrain-Derived Neurotrophic FactorCyclic AMP Response Element-Binding ProteinImmunoglobulinsSynapsins

Identifiers

PMID19555673
PMCPMC2735616
OpenAlexW2088754913

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.