PMID- 29163114 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200929 IS - 1662-5161 (Print) IS - 1662-5161 (Electronic) IS - 1662-5161 (Linking) VI - 11 DP - 2017 TI - Interaction between BDNF Polymorphism and Physical Activity on Inhibitory Performance in the Elderly without Cognitive Impairment. PG - 541 LID - 10.3389/fnhum.2017.00541 [doi] LID - 541 AB - Background: In the elderly, physical activity (PA) enhances cognitive performances, increases brain plasticity and improves brain health. The neurotrophic hypothesis is that the release of brain-derived neurotrophic factor (BDNF), which is implicated in brain plasticity and cognition, is triggered by PA because motoneurons secrete BDNF into the bloodstream during exercise. Individual differences in cognitive performance may be explained by individual differences in genetic predisposition. A single nucleotide polymorphism on the BDNF gene, BDNFVal66Met, affects activity-dependent BDNF secretion. This study investigated the influence of the BDNFVal66Met polymorphism on the relationship between PA and controlled inhibition performance in older adults. Methods: A total of 114 healthy elderly volunteers (mean age = 71.53 years old) were evaluated. Participants were genotyped for the BDNFVal66Met polymorphism. We evaluated inhibitory performance using choice reaction times (RT) and error rates from a Simon-like task and estimated their PA using two self-reported questionnaires. We established four groups according to PA level (active vs. inactive) and BDNFVal66Met genotype (Met carriers vs. Val-homozygous). The results were analyzed using ANOVA and ANCOVA, including age, gender and body mass index as covariates. Results: The BDNFVal66Met polymorphism interacted with PA on controlled inhibition performance. More specifically, inactive Val-homozygous participants exhibited a lower inhibition performance than active Val homozygotes and inactive Met carriers; the former had a higher error rate without differences in RT. Conclusion: Differences between individuals on inhibitory performance may be partially understood by the interaction between genetic influence in BDNF secretion and PA level. The results of this study clearly support the neurotrophic hypothesis that BDNF synthesis is an important mechanism underlying the influence of physical activity on brain structure and functions. FAU - Canivet, Anne AU - Canivet A AD - Universite de Poitiers, Centre de Recherches sur la Cognition et l'Apprentissage, CNRS UMR 7295, Poitiers, France. FAU - Albinet, Cedric T AU - Albinet CT AD - Universite de Poitiers, Centre de Recherches sur la Cognition et l'Apprentissage, CNRS UMR 7295, Poitiers, France. AD - Laboratoire Sciences de la Cognition, Technologie, Ergonomie (SCoTE), Universite de Toulouse, INU Champollion, Albi, France. FAU - Rodriguez-Ballesteros, Montserrat AU - Rodriguez-Ballesteros M AD - Laboratoire CiMoTheMA - EA 3808, CHU de Poitiers, Universite de Poitiers, Groupe Genetique des Maladies Rares, Poitiers, France. FAU - Chicherio, Christian AU - Chicherio C AD - Neuropsychology Unit, Neurology Clinic, Department of Clinical Neurosciences, Geneva University Hospitals, Geneva, Switzerland. AD - Center for Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, Geneva, Switzerland. FAU - Fagot, Delphine AU - Fagot D AD - Center for Interdisciplinary Study of Gerontology and Vulnerability, University of Geneva, Geneva, Switzerland. FAU - Andre, Nathalie AU - Andre N AD - Universite de Poitiers, Centre de Recherches sur la Cognition et l'Apprentissage, CNRS UMR 7295, Poitiers, France. FAU - Audiffren, Michel AU - Audiffren M AD - Universite de Poitiers, Centre de Recherches sur la Cognition et l'Apprentissage, CNRS UMR 7295, Poitiers, France. AD - Maison des Sciences de l'Homme et de la Societe, CNRS USR 3565, Universite de Poitiers, Poitiers, France. LA - eng PT - Journal Article DEP - 20171107 PL - Switzerland TA - Front Hum Neurosci JT - Frontiers in human neuroscience JID - 101477954 PMC - PMC5681928 OTO - NOTNLM OT - BDNF gene OT - aging OT - controlled inhibition OT - executive functions OT - genetic polymorphism OT - physical activity OT - reaction time EDAT- 2017/11/23 06:00 MHDA- 2017/11/23 06:01 PMCR- 2017/01/01 CRDT- 2017/11/23 06:00 PHST- 2017/07/10 00:00 [received] PHST- 2017/10/24 00:00 [accepted] PHST- 2017/11/23 06:00 [entrez] PHST- 2017/11/23 06:00 [pubmed] PHST- 2017/11/23 06:01 [medline] PHST- 2017/01/01 00:00 [pmc-release] AID - 10.3389/fnhum.2017.00541 [doi] PST - epublish SO - Front Hum Neurosci. 2017 Nov 7;11:541. doi: 10.3389/fnhum.2017.00541. eCollection 2017.