Voluntary exercise delays progressive deterioration of markers of metabolism and behavior in a mouse model of Parkinson's disease

Jing Huei Lai, Kai Yun Chen, John Chung Che Wu, Lars Olson, Stefan Brené, Chi Zong Huang, Yen Hua Chen, Shuo Jhen Kang, Kuo Hsing Ma, Barry J. Hoffer, Tsung Hsun Hsieh, Yung Hsiao Chiang

Research output: Contribution to journalReview article

Abstract

Although a good deal is known about the genetics and pathophysiology of Parkinson's disease (PD), and information is emerging about its cause, there are no pharmacological treatments shown to have a significant, sustained capacity to prevent or attenuate the ongoing neurodegenerative processes. However, there is accumulating clinical results to suggest that physical exercise is such a treatment, and studies of animal models of the dopamine (DA) deficiency associated with the motor symptoms of PD further support this hypothesis. Exercise is a non-pharmacological, economically practical, and sustainable intervention with little or no risk and with significant additional health benefits. In this study, we investigated the long-term effects of voluntary exercise on motor behavior and brain biochemistry in the transgenic MitoPark mouse PD model with progressive degeneration of the DA systems caused by DAT-driven deletion of the mitochondrial transcription factor TFAM in DA neurons. We found that voluntary exercise markedly improved behavioral function, including overall motor activity, narrow beam walking, and rotarod performance. There was also improvement of biochemical markers of nigrostriatal DA input. This was manifested by increased levels of DA measured by HPLC, and of the DA membrane transporter measured by PET. Moreover, exercise increased oxygen consumption and, by inference, ATP production via oxidative phosphorylation. Thus, exercise augmented aerobic mitochondrial oxidative metabolism vs glycolysis in the nigrostriatal system. We conclude that there are clear-cut physiological mechanisms for beneficial effects of exercise in PD.

Original languageEnglish
Article number146301
JournalBrain Research
Volume1720
DOIs
Publication statusPublished - Oct 1 2019

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Parkinson Disease
Dopamine
Exercise
Dopamine Plasma Membrane Transport Proteins
Membrane Transport Proteins
Dopaminergic Neurons
Oxidative Phosphorylation
Insurance Benefits
Glycolysis
Oxygen Consumption
Biochemistry
Transgenic Mice
Walking
Motor Activity
Transcription Factors
Animal Models
Adenosine Triphosphate
Biomarkers
High Pressure Liquid Chromatography
Pharmacology

Keywords

  • Dopamine
  • Exercise
  • Mitochondria
  • Parkinson's disease
  • PET

ASJC Scopus subject areas

  • Neuroscience(all)
  • Molecular Biology
  • Clinical Neurology
  • Developmental Biology

Cite this

Voluntary exercise delays progressive deterioration of markers of metabolism and behavior in a mouse model of Parkinson's disease. / Lai, Jing Huei; Chen, Kai Yun; Wu, John Chung Che; Olson, Lars; Brené, Stefan; Huang, Chi Zong; Chen, Yen Hua; Kang, Shuo Jhen; Ma, Kuo Hsing; Hoffer, Barry J.; Hsieh, Tsung Hsun; Chiang, Yung Hsiao.

In: Brain Research, Vol. 1720, 146301, 01.10.2019.

Research output: Contribution to journalReview article

Lai, Jing Huei ; Chen, Kai Yun ; Wu, John Chung Che ; Olson, Lars ; Brené, Stefan ; Huang, Chi Zong ; Chen, Yen Hua ; Kang, Shuo Jhen ; Ma, Kuo Hsing ; Hoffer, Barry J. ; Hsieh, Tsung Hsun ; Chiang, Yung Hsiao. / Voluntary exercise delays progressive deterioration of markers of metabolism and behavior in a mouse model of Parkinson's disease. In: Brain Research. 2019 ; Vol. 1720.
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