PMID- 25994133 OWN - NLM STAT- MEDLINE DCOM- 20160208 LR - 20150521 IS - 1881-7742 (Electronic) IS - 0301-4800 (Linking) VI - 61 IP - 1 DP - 2015 TI - Impact of exercise and vitamin B1 intake on hippocampal brain-derived neurotrophic factor and spatial memory performance in a rat model of stress. PG - 1-7 LID - 10.3177/jnsv.61.1 [doi] AB - Chronic stress affects brain areas involved in learning and emotional responses through modulation of neurotropic factors or neurotransmitters. Therefore, we investigated the role of exercise and thiamine supplementation on spatial memory and on brain-derived neurotrophic factor (BDNF) and acetylcholine (Ach) content in the hippocampus of the stressed animals. Male Wistar rats were randomly assigned to 4 groups (8 rats/group): control group; stress group; swimming and stress group; and thiamine and stress group. All animals were assessed by a T maze for spatial memory or open field test for locomotion and anxiety. BDNF and Ach were estimated in the hippocampus. Chronic immobilization stress resulted in a significant decrease in BDNF and Ach levels in the hippocampus and impairment in spatial memory functions and decreased basal activity. However, either swimming training or thiamine intake for 30 d was proved to induce a significant increase both in BDNF and Ach in conjunction with improved performance in the T maze, marked anxiolytic effect and enhanced ambulation in the open field test, as compared to the stress group. Interestingly, swimming-exercised rats showed significantly higher levels of BDNF versus thiamine-receiving rats, while thiamine-receiving rats showed higher locomotor activity and less freezing behavior in the open field test compared to the swimming group. It was concluded that decreased BDNF and Ach after stress exposure could be a mechanism for the deleterious actions of stress on memory function; swimming exercise or vitamin B1 supplementation for 30 d was a protective tool to improve coping with chronic stress by modulating BDNF and Ach content along with enhancement of memory functions and motor activities. FAU - E Dief, Abeer AU - E Dief A AD - Medical Physiology Department, Faculty of Medicine, Alexandria University. FAU - M Samy, Doaa AU - M Samy D FAU - I Dowedar, Fatma AU - I Dowedar F LA - eng PT - Journal Article PL - Japan TA - J Nutr Sci Vitaminol (Tokyo) JT - Journal of nutritional science and vitaminology JID - 0402640 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 12001-76-2 (Vitamin B Complex) RN - N9YNS0M02X (Acetylcholine) RN - X66NSO3N35 (Thiamine) SB - IM MH - Acetylcholine/metabolism MH - Animals MH - Anxiety/complications/therapy MH - Brain-Derived Neurotrophic Factor/*metabolism MH - Disease Models, Animal MH - Hippocampus/*drug effects MH - Immobilization MH - Male MH - Maze Learning/drug effects MH - Memory Disorders/etiology/*therapy MH - Physical Conditioning, Animal/physiology MH - Rats, Wistar MH - Spatial Memory/*drug effects MH - Stress, Psychological/complications/*therapy MH - Swimming/*physiology MH - Thiamine/pharmacology/*therapeutic use MH - Vitamin B Complex/pharmacology/therapeutic use EDAT- 2015/05/23 06:00 MHDA- 2016/02/09 06:00 CRDT- 2015/05/22 06:00 PHST- 2015/05/22 06:00 [entrez] PHST- 2015/05/23 06:00 [pubmed] PHST- 2016/02/09 06:00 [medline] AID - 10.3177/jnsv.61.1 [doi] PST - ppublish SO - J Nutr Sci Vitaminol (Tokyo). 2015;61(1):1-7. doi: 10.3177/jnsv.61.1.