Earticle

초록

영어

Effect of swimming exercise on serotonin (5-hydroxytryptamine, 5-HT) expression and apoptosis in social isolation rats during old age was in-vestigated. Rats in the old social isolation groups were housed alone per cage for 4 weeks. Rats in the swimming exercise groups were al-lowed to swim for 30 min once daily for 4 weeks. Morris water maze task determined spatial working memory and elevated plus maze test determined anxiety. Immunohistochemistry for tryptophan hydroxylase (TPH) and 5-HT in the dorsal raphe and for doublecortin (DCX) in the hippocampal dentate gyrus was conducted. Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining in the hippocampal dentate gyrus was performed. Western blot analysis for Bax, Bcl-2, and cytochrome c in the hippocampus was conducted. So-cial isolation in rats of old age reduced spatial working memory and in-creased anxiety level. Swimming exercise enhanced spatial working memory and suppressed anxiety level. Social isolation in rats of old age inhibited TPH and 5-HT expression in dorsal rape. Swimming exercise increased TPH and 5-HT expression. Social isolation in rats of old age inhibited DCX-positive cells in the hippocampal dente gyrus. Swimming exercise increased DCX-positive cells. Social isolation in rats of old age increased TUNEL-positive cells, Bax and cytochrome c expression, and decreased Bcl-2 expression, which promoted apoptosis. Swimming ex-ercise suppressed TUNEL-positive cells, Bax and cytochrome c expres-sion, and increased Bcl-2 expression, which inhibited apoptosis. Swim-ming exercise improved 5-HT expression and suppressed apoptosis to alleviate anxiety and memory impairment during old age.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
Experiment animals
Social isolation protocol
Swimming exercise protocol
Morris water maze task
Elevated plus maze test
Tissue preparation
Immunohistochemistry for TPH and 5-HT
Immunohistochemistry for DCX
TUNEL staining
Western blotting for Bax, Bcl-2, and cytochrome c
Data analysis
RESULTS
Spatial working memory and anxiety
TPH and 5-HT expression in the dorsal raphe
DCX-positive and TUNEL-positive cells in the dentate gyrus
Bax, Bcl-2, and cytochrome c expression in the hippocampus
DISCUSSION
CONFLICT OF INTEREST
ACKNOWLEDGMENTS
REFERENCES

키워드

저자

• Sang-Seo Park [ Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea ]
• Hye-Sang Park [ Department of Kinesiology, College of Public Health and Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA ]
• Tae-Woon Kim [ Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea, Exercise Rehabilitation Research Institute, Department of Exercise & Health Science, Sangmyung University, Seoul, Korea ]
• Sam-Jun Lee [ Department of Sport Rehabilitation, Tongmyong University, Busan, Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  JER [Journal of Exercise Rehabilitation]

• 간기

  격월간

• pISSN

  2288-176X

• eISSN

  2288-1778

• 수록기간

  2013~2026

• 등재여부

  SCOPUS,KCI 등재

• 십진분류

  KDC 517 DDC 613