PMID- 26631814 OWN - NLM STAT- MEDLINE DCOM- 20161213 LR - 20191210 IS - 1095-9572 (Electronic) IS - 1053-8119 (Print) IS - 1053-8119 (Linking) VI - 126 DP - 2016 Feb 1 TI - Entorhinal volume, aerobic fitness, and recognition memory in healthy young adults: A voxel-based morphometry study. PG - 229-38 LID - S1053-8119(15)01071-X [pii] LID - 10.1016/j.neuroimage.2015.11.049 [doi] AB - Converging evidence supports the hypothesis effects of aerobic exercise and environmental enrichment are beneficial for cognition, in particular for hippocampus-supported learning and memory. Recent work in humans suggests that exercise training induces changes in hippocampal volume, but it is not known if aerobic exercise and fitness also impact the entorhinal cortex. In animal models, aerobic exercise increases expression of growth factors, including brain derived neurotrophic factor (BDNF). This exercise-enhanced expression of growth hormones may boost synaptic plasticity, and neuronal survival and differentiation, potentially supporting function and structure in brain areas including but not limited to the hippocampus. Here, using voxel based morphometry and a standard graded treadmill test to determine cardio-respiratory fitness (Bruce protocol; .VO2 max), we examined if entorhinal and hippocampal volumes were associated with cardio-respiratory fitness in healthy young adults (N=33). In addition, we examined if volumes were modulated by recognition memory performance and by serum BDNF, a putative marker of synaptic plasticity. Our results show a positive association between volume in right entorhinal cortex and cardio-respiratory fitness. In addition, average gray matter volume in the entorhinal cortex, bilaterally, was positively associated with memory performance. These data extend prior work on the cerebral effects of aerobic exercise and fitness to the entorhinal cortex in healthy young adults thus providing compelling evidence for a relationship between aerobic fitness and structure of the medial temporal lobe memory system. CI - Copyright (c) 2015 Elsevier Inc. All rights reserved. FAU - Whiteman, Andrew S AU - Whiteman AS AD - Dept. of Psychological and Brain Sciences, Boston Univ., 2 Cummington Mall, Boston, MA 02215, USA; Center for Memory and Brain, Boston Univ., 2 Cummington Mall, Boston, MA 02215, USA. Electronic address: asw221@bu.edu. FAU - Young, Daniel E AU - Young DE AD - College of Nursing and Health Sciences, Exercise and Health Sciences Program, Univ. of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125, USA. Electronic address: daniel.young@umb.edu. FAU - Budson, Andrew E AU - Budson AE AD - Dept. of Neurology, Boston Univ. School of Medicine, Boston, MA, USA; VA Boston Healthcare System, 150 South Huntington St., Boston, MA 02130, USA. Electronic address: abudson@bu.edu. FAU - Stern, Chantal E AU - Stern CE AD - Dept. of Psychological and Brain Sciences, Boston Univ., 2 Cummington Mall, Boston, MA 02215, USA; Center for Memory and Brain, Boston Univ., 2 Cummington Mall, Boston, MA 02215, USA. Electronic address: chantal@bu.edu. FAU - Schon, Karin AU - Schon K AD - Dept. of Psychological and Brain Sciences, Boston Univ., 2 Cummington Mall, Boston, MA 02215, USA; Center for Memory and Brain, Boston Univ., 2 Cummington Mall, Boston, MA 02215, USA; Dept. of Anatomy and Neurobiology, Boston Univ. School of Medicine, 72 East Concord St., Boston, MA, USA; Center for Biomedical Imaging, Boston Univ. School of Medicine, 650 Albany Street, Boston, MA, USA. Electronic address: kschon@bu.edu. LA - eng GR - K99 AG036845/AG/NIA NIH HHS/United States GR - R00AG036845/AG/NIA NIH HHS/United States GR - UL1 TR000157/TR/NCATS NIH HHS/United States GR - UL1-TR000157/TR/NCATS NIH HHS/United States GR - R00 AG036845/AG/NIA NIH HHS/United States GR - K99AG036845/AG/NIA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20151126 PL - United States TA - Neuroimage JT - NeuroImage JID - 9215515 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 7171WSG8A2 (BDNF protein, human) SB - IM MH - Adolescent MH - Adult MH - Brain-Derived Neurotrophic Factor/*blood MH - Entorhinal Cortex/*anatomy & histology MH - Exercise Test MH - Female MH - Humans MH - Magnetic Resonance Imaging MH - Male MH - Physical Fitness/*physiology MH - Recognition, Psychology/*physiology MH - Young Adult PMC - PMC4733633 MID - NIHMS744066 OTO - NOTNLM OT - Cardiovascular fitness OT - Hippocampus OT - Medial temporal lobes OT - Neurotrophins OT - Recognition memory EDAT- 2015/12/04 06:00 MHDA- 2016/12/15 06:00 PMCR- 2017/02/01 CRDT- 2015/12/04 06:00 PHST- 2015/07/14 00:00 [received] PHST- 2015/11/18 00:00 [revised] PHST- 2015/11/20 00:00 [accepted] PHST- 2015/12/04 06:00 [entrez] PHST- 2015/12/04 06:00 [pubmed] PHST- 2016/12/15 06:00 [medline] PHST- 2017/02/01 00:00 [pmc-release] AID - S1053-8119(15)01071-X [pii] AID - 10.1016/j.neuroimage.2015.11.049 [doi] PST - ppublish SO - Neuroimage. 2016 Feb 1;126:229-38. doi: 10.1016/j.neuroimage.2015.11.049. Epub 2015 Nov 26.