Evidence map›Paper›PMID 26276123›Full record

ArticleNeurorehabilitation and neural repair2016

Preliminary Associations Between Brain-Derived Neurotrophic Factor, Memory Impairment, Functional Cognition, and Depressive Symptoms Following Severe TBI.

Michelle D Failla, Shannon B Juengst, Patricia M Arenth, Amy K Wagner

Open access · bronzeAbstract read
In one paragraph

Article in Neurorehabilitation and neural repair, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 4 pooled it
3.5field-weighted citation impact, top 7% 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

32 citing papers in PubMed, 4 syntheses or guidelines pooled it, 59 citations in OpenAlex.

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  16. AcuteNeurorehabilitation and neural repair · 2021
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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

4 authors at 1 institution in 1 country.

Michelle D FaillaCenter for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA.
Shannon B JuengstDepartment of Physical Medicine and Rehabilitation, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Patricia M ArenthDepartment of Physical Medicine and Rehabilitation, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Amy K WagnerCenter for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA Department of Physical Medicine and Rehabilitation, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA Safar Center for Resuscitation Research, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA Department of Neuroscience, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA wagnerak@upmc.edu.
University of Pittsburgh · US

Funding

Injury control research centersR49CE323155 · CE · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI FABIO, ANTHONY · 2005 to 2008
$2.6M
Dopamine Genetic Variants Modulating Recovery After TBIR01HD048162 · NICHD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI WAGNER, AMY K · 2004 to 2008
$1.8M
NCIPC CDC HHS R49 CE323155NICHD NIH HHS R01 HD048162
6 · The paper itself

Abstract

unlabelledBackground Traumatic brain injury (TBI) often leads to mood and cognitive complications, affecting functional recovery. Understanding neurobiological alterations common in post-TBI depression (PTD) and cognition may identify novel biomarkers for TBI complications. Brain-derived neurotrophic factor (BDNF) is a likely target based on evidence of reduced BDNF signaling in experimental TBI and depression models and its role in learning and memory. Objective To evaluate BDNF as a biomarker for PTD, cognitive impairment, and functional cognition in a prospective cohort with severe TBI. Methods Participants with TBI (n = 113) were evaluated for PTD (Patient Health Questionnaire-9 [PHQ-9]), cognitive impairment (cognitive composite score), and functional cognition (Functional Independence Measure-Cognition, FIM-Cog). BDNF levels were measured in cerebrospinal fluid and serum at 0 to 6 days postinjury and in serum at 6 and 12 months postinjury.

resultsSerum BDNF was reduced after TBI versus controls at all time points. Acute serum BDNF positively correlated with memory composites (6 months: r = 0.43, P = .019, n = 30; 12 months: r = 0.53, P = .005, n = 26) and FIM-Memory scores (6 months: r = 0.35, P = .019, n = 45; 12 months: r = 0.38, P = .018, n = 38). Acute serum BDNF negatively correlated with 12-month PHQ-9 scores (r = -0.38; P = .044; n = 29). At 12 months, chronic serum BDNF tended to be lower in participants with PTD (P = .07) and correlated with PHQ-9 scores (r = -0.41; P = .019; n = 32). Conclusions Acute BDNF associations with memory recovery may implicate hippocampal damage/degeneration. Comparatively, BDNF associations with PTD status were not as strong as associations with PTD severity. Further investigation may delineate longitudinal BDNF patterns, and BDNF responsive treatments, reflecting mood and cognitive recovery following TBI.

Indexed as

Brain Injuries, TraumaticAdolescentAdultBrain-Derived Neurotrophic FactorCognition DisordersCohort StudiesDepressionFemaleHumansMaleMemory DisordersMiddle AgedNeuropsychological TestsStatistics, NonparametricSurveys and QuestionnairesTrauma Severity IndicesBrain-Derived Neurotrophic FactorBDNFbiomarkercognitive impairmentdepressionrehabilomicstraumatic brain injury

Identifiers

PMID26276123
PMCPMC4752939
OpenAlexW1919111625

What OpenQuestion holds

Textmetadata
LicenceTDM
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.