Cited by 98Memory and Neural MechanismsNerve injury and regenerationNeuroscience and Neuropharmacology Research

Upregulation of hippocampal TrkB and synaptotagmin is involved in treadmill exercise-enhanced aversive memory in mice

Liu, Yu-Fan, Chen, Hsiun-ing, Yu, Lung, Kuo, Yu-Min, Wu, Fong-Sen, Chuang, Jih-Ing, Liao, Pao-Chi, Jen, Chauying J.·2008·Neurobiology of Learning and Memory

Abstract

Cognitive functions usually involve various synaptic proteins and neurotrophic factors in the hippocampus. However, whether treadmill exercise can improve learning and memory by upregulating some of these molecules remain unraveled. To address this question, male BALB/c mice were divided into control and exercise groups, the latter group went through 4 weeks of treadmill exercise training. At the end of exercise training period, they were either tested for passive avoidance (PA) performance or sacrificed for quantifying the hippocampal levels of brain-derived neurotrophic factor (BDNF), tropomyosin-related kinase B (TrkB, the BDNF receptor), synaptotagmin (a Ca(2+)-dependent synaptic vesicle protein), and SNAP-25 (a presynaptic vesicular fusion protein). Our results showed that treadmill exercise training (1) increased the retention latency without affecting the fear acquisition in the PA test, (2) transiently increased the hippocampal BDNF level at 1, 2, and 4h after the completion of exercise training, and (3) persistently increased the hippocampal protein levels of full-length TrkB, phosphorylated TrkB and synaptotagmin, but not truncated TrkB or SNAP-25. Moreover, the protein expression level of full-length TrkB or synaptotagmin was positively correlated with PA performance in mice. Finally, inhibition of TrkB signaling by K252a abolished the exercise-facilitated PA performance and upregulation of TrkB and synaptotagmin. Taken together, these data suggest that the upregulation of TrkB and synaptotagmin in the hippocampus contributes to the exercise-facilitated aversive memory.

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Crossref · 10.1016/j.nlm.2008.02.005

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  • Treadmill exercise improves hippocampus-dependent spatial learning and memory as well as aversive memory.

    “Treadmill exercise also improves hippocampus-dependent spatial learning and memory as well as aversive memory [2, 3, 25, 97, 112, 174, 186, 187].”

    From The neuropathology of sport (2014) · cites this paper as [112]

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Authors
Liu, Y.-F., Chen, H.-I., Yu, L., Kuo, Y.-M., Wu, F.-S., Chuang, J.-I., Liao, P.-C., & Jen, C. J.
Affiliations
National Cheng Kung University (TW)
Corresponding author
Jen, Chauying J.
Venue
Neurobiology of Learning and Memory
Publisher
Elsevier BV
Published
2008-07
Volume
90
Issue
1
Pages
81-89
ISSN
1074-7427 (ISSN-L)
OpenAlex
W2024493299
Cited by
98
References
39
Citations by year
2026: 1 · 2025: 2 · 2024: 2 · 2023: 4 · 2022: 6 · 2021: 6 · 2020: 11 · 2019: 4 · 2018: 6 · 2017: 2 · 2016: 6 · 2015: 2 · 2014: 4 · 2013: 7 · 2012: 15
FWCI
3.28
Type
journal article
Language
en
Open access
closed
Locations
  • Neurobiology of Learning and Memory (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Science Council
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
treadmill exercise, aversive memory, passive avoidance, hippocampus, TrkB, synaptotagmin, brain-derived neurotrophic factor, BDNF receptor, SNAP-25, synaptic proteins, K252a, fear memory, exercise training
MeSH terms
Animals, Avoidance Learning, Carbazoles, Corticosterone, Enzyme Inhibitors, Hippocampus, Male, Membrane Glycoproteins, Memory, Mice, Inbred BALB C, Physical Conditioning, Animal, Protein-Tyrosine Kinases, Running, Up-Regulation, Brain-Derived Neurotrophic Factor, Receptor, trkB, Indole Alkaloids, Synaptosomal-Associated Protein 25, Synaptotagmin I, Mice

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