Evidence map›Paper›PMID 27445764›Full record

ArticleFrontiers in human neuroscience2016

Aerobic Fitness Linked to Cortical Brain Development in Adolescent Males: Preliminary Findings Suggest a Possible Role of BDNF Genotype.

Megan M Herting, Madison F Keenan, Bonnie J Nagel

Open access · goldAbstract read
In one paragraph

Article in Frontiers in human neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

22 citing papers in PubMed, 36 citations in OpenAlex.

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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

3 authors at 2 institutions in 1 country.

Megan M HertingDepartment of Pediatrics, Children's Hospital Los Angeles Los Angeles, CA, USA.
Madison F KeenanDepartment of Pediatrics, Children's Hospital Los Angeles Los Angeles, CA, USA.
Bonnie J NagelDepartment of Behavioral Neuroscience, Oregon Health & Science University Portland, OR, USA.
Children's Hospital of Los Angeles · USOregon Health & Science University · US

Funding

Translational Research Support CoreP30ES007048 · NIEHS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ROB S MCCONNELL · 1996 to 2026
$46.4M
Timing Effects of Heavy Alcohol Initiation on Adolescent NeurodevelopmentR01AA017664 · NIAAA · OREGON HEALTH & SCIENCE UNIVERSITY · PI NAGEL, BONNIE J · 2009 to 2020
$3.7M
Adolescent Working Memory and White Matter DevelopmentK08NS052147 · NINDS · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI NAGEL, BONNIE J · 2005 to 2009
$666k
Exercise and Hippocampal Structure and Function in AdolescentsF31AA019866 · NIAAA · OREGON HEALTH & SCIENCE UNIVERSITY · PI HERTING, MEGAN MARIE · 2010 to 2011
$83k
NIAAA NIH HHS F31 AA019866NIAAA NIH HHS R01 AA017664NIEHS NIH HHS P30 ES007048NINDS NIH HHS K08 NS052147
6 · The paper itself

Abstract

Aerobic exercise has been shown to impact brain structure and cognition in children and adults. Exercise-induced activation of a growth protein known as brain derived neurotrophic factor (BDNF) is thought to contribute to such relationships. To date, however, no study has examined how aerobic fitness relates to cortical brain structure during development and if BDNF genotype moderates these relationships. Using structural magnetic resonance imaging (MRI) and FreeSurfer, the current study examined how aerobic fitness relates to volume, thickness, and surface area in 34 male adolescents, 15 to 18 years old. Moreover, we examined if the val66met BDNF genotype moderated these relationships. We hypothesized that aerobic fitness would relate to greater thickness and volumes in frontal, parietal, and motor regions, and that these relationships would be less robust in individuals carrying a Met allele, since this genotype leads to lower BDNF expression. We found that aerobic fitness positively related to right rostral middle frontal cortical volume in all adolescents. However, results also showed BDNF genotype moderated the relationship between aerobic fitness and bilateral medial precuneus surface area, with a positive relationship seen in individuals with the Val/Val allele, but no relationship detected in those adolescents carrying a Met allele. Lastly, using self-reported levels of aerobic activity, we found that higher-fit adolescents showed larger right medial pericalcarine, right cuneus and left precuneus surface areas as compared to their low-fit peers. Our findings suggest that aerobic fitness is linked to cortical brain development in male adolescents, and that more research is warranted to determine how an individual's genes may influence these relationships.

Indexed as

adolescenceBDNFcortical volumeexercisegenotypeneuroimaging

Identifiers

PMID27445764
PMCPMC4928533
OpenAlexW2465264647

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.