PMID- 28392271 OWN - NLM STAT- MEDLINE DCOM- 20180105 LR - 20180816 IS - 1873-6815 (Electronic) IS - 0531-5565 (Linking) VI - 93 DP - 2017 Jul TI - Brain-derived neurotrophic factor (BDNF) serum basal levels is not affected by power training in mobility-limited older adults - A randomized controlled trial. PG - 29-35 LID - S0531-5565(16)30340-0 [pii] LID - 10.1016/j.exger.2017.03.019 [doi] AB - Brain-derived neurotrophic factor (BDNF) is a potential important factor involved in neuroplasticity, and may be a mediator for eliciting adaptations in neuromuscular function and physical function in older individuals following physical training. As power training taxes the neural system to a very high extent, it may be particularly effective in terms of eliciting increases in systemic BDNF levels. We examined the effects of 12weeks of power training on mature BDNF (mBDNF) and total BDNF (tBDNF) in mobility-limited older adults from the Healthy Ageing Network of Competence (HANC) study. We included 47 older men and women: n=22 in the training group (TG: progressive high intensity power training, 2 sessions per week; age 82.7+/-5.4years, 55% women) and n=25 in the control group (CG: no interventions; age 82.2+/-4.5years, 76% women). Following overnight fasting, basal serum levels of mBDNF and tBDNF were assessed (human ELISA kits) at baseline and post-intervention. At baseline, mBDNF and tBDNF levels were comparable in the two groups, TG and CG. Post-intervention, no significant within-group or between-group changes were observed in mBDNF or tBDNF. Moreover, when divided into responder tertiles based upon changes in mBDNF and tBDNF (i.e. decliners, maintainers, improvers), respectively, comparable findings were observed for TG and CG. Altogether, basal systemic levels of serum mBDNF and tBDNF are not affected in mobility-limited older adults following 12-weeks of power training, and do not appear to be a major mechanistic factor mediating neuroplasticity in mobility-limited older adults. CI - Copyright (c) 2017 Elsevier Inc. All rights reserved. FAU - Hvid, L G AU - Hvid LG AD - Department of Sports Science and Clinical Biomechanics, University of Southern Denmark (SDU), Odense, Denmark. Electronic address: lhvid@health.sdu.dk. FAU - Nielsen, M K F AU - Nielsen MKF AD - Department of Sports Science and Clinical Biomechanics, University of Southern Denmark (SDU), Odense, Denmark. FAU - Simonsen, C AU - Simonsen C AD - Department of Sports Science and Clinical Biomechanics, University of Southern Denmark (SDU), Odense, Denmark. FAU - Andersen, M AU - Andersen M AD - Department of Endocrinology, Odense University Hospital, Odense, Denmark. FAU - Caserotti, P AU - Caserotti P AD - Department of Sports Science and Clinical Biomechanics, University of Southern Denmark (SDU), Odense, Denmark; National Institutes of Health, National Institute on Aging, Laboratory of Epidemiology and Population Sciences (LPES), Bethesda, MD, United States. LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20170407 PL - England TA - Exp Gerontol JT - Experimental gerontology JID - 0047061 RN - 0 (Biomarkers) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - Aged MH - Aged, 80 and over MH - Biomarkers/blood MH - Brain-Derived Neurotrophic Factor/*blood MH - Female MH - Humans MH - Male MH - Middle Aged MH - *Mobility Limitation MH - Neuronal Plasticity/physiology MH - Resistance Training/*methods MH - Single-Blind Method OTO - NOTNLM OT - Aging OT - Brain-derived neurotrophic factor (BDNF) OT - Neuroplasticity OT - Power training EDAT- 2017/04/11 06:00 MHDA- 2018/01/06 06:00 CRDT- 2017/04/11 06:00 PHST- 2016/09/12 00:00 [received] PHST- 2017/01/28 00:00 [revised] PHST- 2017/03/13 00:00 [accepted] PHST- 2017/04/11 06:00 [pubmed] PHST- 2018/01/06 06:00 [medline] PHST- 2017/04/11 06:00 [entrez] AID - S0531-5565(16)30340-0 [pii] AID - 10.1016/j.exger.2017.03.019 [doi] PST - ppublish SO - Exp Gerontol. 2017 Jul;93:29-35. doi: 10.1016/j.exger.2017.03.019. Epub 2017 Apr 7.