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Abdullah M, Lin SH, Huang LC, Chiu NT, Yang YK. Fat loss and muscle gain: The possible role of striatal dopaminergic tone in determining the efficacy of physical exercise. J Formos Med Assoc 2024:S0929-6646(24)00300-0. [PMID: 38965009 DOI: 10.1016/j.jfma.2024.06.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 06/24/2024] [Accepted: 06/27/2024] [Indexed: 07/06/2024] Open
Abstract
The effectiveness of exercise for obesity is contentious due to individual response variability. Owing to the roles of dopamine in motor functions, metabolism, and appetite, this study aimed to identify striatal dopamine as a predictor of variability in exercise response, specifically in terms of fat loss and muscle gain. Healthy non-exercising males completed an 8-week program, exercising 1 h, 4 days a week. Striatal dopaminergic tone was assessed by measuring dopamine transporter availability using technetium-99 m labelled tropane derivative, [99mTc]TRODAT-1 (TRODAT), single-photon emission computed tomography, and body composition (fat and muscles mass) was analysed using bioelectrical impedance. Lower baseline dopamine levels were associated with greater fat mass loss (r = 0.58, p = 0.006), percentage fat mass loss (r = 0.53, p = 0.013), and increase in muscle mass (β = -0.53, p = 0.035, after taking age and smoking status as covariates). These findings enhance our understanding of obesity neurobiology and exercise response variability, necessitating further research for targeted interventions based on dopaminergic profiles.
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Affiliation(s)
- Muhammad Abdullah
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Cheng Kung University and Academia Sinica, Taipei, Taiwan
| | - Shih-Hsien Lin
- Clinical Medicine Research Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Institute of Behavioral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Li-Chung Huang
- Institute of Clinical Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Nan-Tsing Chiu
- Department of Nuclear Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yen Kuang Yang
- Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Institute of Behavioral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Psychiatry, Tainan Hospital, Ministry of Health and Welfare, Tainan, Taiwan.
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Wang Y, Wei L, Tan M, Yang Z, Gao B, Li J, Liu Y, Zikereya T, Shi K, Chen W. Aerobic exercise improves motor dysfunction in Parkinson's model mice via differential regulation of striatal medium spiny neuron. Sci Rep 2024; 14:12132. [PMID: 38802497 PMCID: PMC11130133 DOI: 10.1038/s41598-024-63045-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024] Open
Abstract
The striatum plays a crucial role in providing input to the basal ganglia circuit and is implicated in the pathological process of Parkinson's disease (PD). Disruption of the dynamic equilibrium in the basal ganglia loop can be attributed to the abnormal functioning of the medium spiny neurons (MSNs) within the striatum, potentially acting as a trigger for PD. Exercise has been shown to mitigate striatal neuronal dysfunction through neuroprotective and neurorestorative effects and to improve behavioral deficits in PD model mice. In addition, this effect is offset by the activation of MSNs expressing dopamine D2 receptors (D2-MSNs). In the current study, we investigated the underlying neurobiological mechanisms of this effect. Our findings indicated that exercise reduces the power spectral density of the beta-band in the striatum and decreases the overall firing frequency of MSNs, particularly in the case of striatal D2-MSNs. These observations were consistent with the results of molecular biology experiments, which revealed that aerobic training specifically enhanced the expression of striatal dopamine D2 receptors (D2R). Taken together, our results suggest that aerobic training aimed at upregulating striatal D2R expression to inhibit the functional activity of D2-MSNs represents a potential therapeutic strategy for the amelioration of motor dysfunction in PD.
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Affiliation(s)
- Yinhao Wang
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Longwei Wei
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Mingli Tan
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Zizheng Yang
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Bo Gao
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Juan Li
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Yang Liu
- School of Physical Education, Hebei Normal University, Shijiazhuang, China
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China
| | - Talifu Zikereya
- Department of Physical Education, China University of Geoscience, Beijing, China
| | - Kaixuan Shi
- Department of Physical Education, China University of Geoscience, Beijing, China.
| | - Wei Chen
- School of Physical Education, Hebei Normal University, Shijiazhuang, China.
- Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, Shijiazhuang, China.
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Zhou F, Wei L, Wang Y, Chen W. Aerobic exercise modulates the striatal Erk/MAPK signaling pathway and improves LID in a mouse model of Parkinson's disease. Brain Res Bull 2024; 209:110906. [PMID: 38395109 DOI: 10.1016/j.brainresbull.2024.110906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 01/31/2024] [Accepted: 02/20/2024] [Indexed: 02/25/2024]
Abstract
OBJECTIVE To investigate the role of the striatal extracellular signal-regulated kinase (Erk1/2) and its phosphorylation (p-Erk1/2) in aerobic training to alleviate the development of the L-DOPA induced dyskinesia (LID) in PD mice. METHODS Forty-eight male C57BL/6 N mice were randomly divided into the 6-OHDA surgery group (6-OHDA, n=42) and the sham surgery group (Sham, n=6). A two-point injection of 6-OHDA into the right striatum was used to establish a lateralized injury PD model. PD mice were randomly divided into a PD control group (PD, n=13) and a PD exercise group (PDE, n=16), this is followed by 4 weeks of L-DOPA treatment, and PDE mice received concurrent running table training (18 m/min, 40 min/day, 5 times/week). AIM scores were performed weekly, and mice were assessed for motor function after 4 weeks using the rotarod, open field, and gait tests. Immunohistochemistry was used to test nigrostriatal TH expression, Western blot was used to determine Erk1/2 and p-Erk1/2 protein expression, and immunofluorescence double-labeling technique was used to detect Erk1/2 and p-Erk1/2 co-expression with prodynorphin (PDYN). RESULTS (1) All AIM scores of PD and PDE mice increased significantly (P < 0.05) with the prolongation of L-DOPA treatment. Compared with PD, all AIM scores were significantly lower in PDE mice (P < 0.05). (2) After 4 weeks, the motor function of PD mice was significantly reduced compared with Sham (P < 0.05 or P < 0.01); compared with PD, the motor function of PDE mice was significantly increased (P < 0.05). (3) Compared with Sham, the expression of Erk1/2 protein, the number of positive cells of Erk1/2 and p-Erk1/2 and the number of positive cells co-expressed with PDYN were significantly increased in PD mice (P < 0.05); compared with PD, Erk1/2 protein expression was significantly decreased in PDE mice (P < 0.05), and the number of Erk1/2 and p-Erk1/2 positive cells was significantly reduced (P < 0.05). CONCLUSION 4 weeks of aerobic exercise can effectively alleviate the development of L-DOPA-induced dyskinesia and improve motor function in PD mice. The related mechanism may be related to the inhibition of striatal Erk/MAPK signaling pathway overactivation by aerobic exercise, but this change did not occur selectively in D1-MSNs.
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Affiliation(s)
- Fangyuan Zhou
- School of Physical Education, Hebei Normal University, Shijiazhuang, Hebei 050024, China
| | - Longwei Wei
- School of Physical Education, Hebei Normal University, Shijiazhuang, Hebei 050024, China
| | - Yinhao Wang
- School of Physical Education, Hebei Normal University, Shijiazhuang, Hebei 050024, China
| | - Wei Chen
- School of Physical Education, Hebei Normal University, Shijiazhuang, Hebei 050024, China; Key Laboratory of Measurement and Evaluation in Exercise Bioinformation of Hebei Province, School of Physical Education, Hebei Normal University, Shijiazhuang, Hebei 050024, China.
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Wang J, Ding X, Li C, Huang C, Ke C, Xu C, Wan C. Early exercise intervention promotes myelin repair in the brains of ischemic rats by inhibiting the MEK/ERK pathway. Transl Neurosci 2024; 15:20220335. [PMID: 38511170 PMCID: PMC10951688 DOI: 10.1515/tnsci-2022-0335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 02/05/2024] [Accepted: 02/12/2024] [Indexed: 03/22/2024] Open
Abstract
Our previous studies have shown that early exercise intervention after stroke increases neural activity and synaptic plasticity and promotes the recovery of nerve fiber bundle integrity in the brain. However, the effect of exercise on the repair of myelin in the brain and the related mechanism are still unclear. In this study, we randomly divided the rats into three groups. Before and after 28 days of intervention, body weight, nerve function, the infarct size, white matter fiber bundle integrity, and nerve myelin structure and function were observed by measuring body weight, analysis of modified neurological severity score, CatWalk gait analysis, MRI, luxol fast blue staining, immunofluorescence, and transmission electron microscopy. Changes in the expression of proteins in the MEK/ERK pathway were assessed. The results showed that early exercise intervention resulted in neurological recovery, decreased the infarct volume and increased nerve fiber integrity, the myelin coverage area, myelin basic protein (MBP) fluorescence intensity expression, and myelin thickness. Furthermore, the expression level of MBP was significantly increased after early exercise intervention, while the expression levels of p-MEK1/2 and p-ERK1/2 were significantly reduced. In the cell study, MBP expression levels were significantly higher in the oxygen and glucose deprivation and administration group.In summary, early exercise intervention after stroke can promote myelin repair by inhibiting the MEK/ERK signaling pathway.
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Affiliation(s)
- Junyi Wang
- Department of Physical Medicine and Rehabilitation, Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Xinyu Ding
- Department of Physical Medicine and Rehabilitation, Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Chen Li
- Department of Physical Medicine and Rehabilitation, Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Chuan Huang
- Department of Physical Medicine and Rehabilitation, Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Changkai Ke
- Department of Physical Medicine and Rehabilitation, Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Chunlei Xu
- Department of Physical Medicine and Rehabilitation, Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Chunxiao Wan
- Department of Physical Medicine and Rehabilitation, Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin, 300052, China
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Elias E, Zhang AY, White AG, Pyle MJ, Manners MT. Voluntary wheel running promotes resilience to the behavioral effects of unpredictable chronic mild stress in male and female mice. Stress 2023; 26:2203769. [PMID: 37125617 DOI: 10.1080/10253890.2023.2203769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Affiliation(s)
- Elias Elias
- Department of Biology. College of Arts and Sciences. St Joseph's University, Philadelphia, PA 19131, United States
- Graduate Program in Cell and Molecular Biology
| | - Ariel Y Zhang
- Department of Biology. College of Arts and Sciences. St Joseph's University, Philadelphia, PA 19131, United States
- Graduate Program in Cell and Molecular Biology
| | - Abigail G White
- Department of Biology. College of Arts and Sciences. St Joseph's University, Philadelphia, PA 19131, United States
- Program in Neuroscience
| | - Matthew J Pyle
- Department of Biology. College of Arts and Sciences. St Joseph's University, Philadelphia, PA 19131, United States
| | - Melissa T Manners
- Department of Biology. College of Arts and Sciences. St Joseph's University, Philadelphia, PA 19131, United States
- Graduate Program in Cell and Molecular Biology
- Program in Neuroscience
- Department of Biological and Biomedical Sciences. College of Science and Mathematics. Rowan University, Glassboro, New Jersey 08028, United States
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Sun X, Li X, Zhang L, Zhang Y, Qi X, Wang S, Qin C. Longitudinal assessment of motor function following the unilateral intrastriatal 6-hydroxydopamine lesion model in mice. Front Behav Neurosci 2022; 16:982218. [PMID: 36505729 PMCID: PMC9730519 DOI: 10.3389/fnbeh.2022.982218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 11/04/2022] [Indexed: 11/27/2022] Open
Abstract
Introduction Despite the widespread use of the unilateral striatal 6-hydroxydopamine (6-OHDA) lesion model in mice in recent years, the stability of behavioral deficits in the 6-OHDA striatal mouse model over time is not yet clear, raising concerns about using this model to evaluate a compound's long-term therapeutic effects. Materials and methods In the current study, mice were tested at regular intervals in the cylinder test and gait analysis beginning 3 days after 6-OHDA injection of 4 and 8 μg and lasting until 56 days post-lesion. Apomorphine-induced rotational test and rotarod test were also performed on Day 23 and 43 post-lesion, respectively. Immunohistochemistry for dopaminergic neurons stained by tyrosine hydroxylase (TH) was also performed. Results Our results showed that both the 4 and 8 μg 6-OHDA lesion groups exhibited forelimb use asymmetry with a preference for the ipsilateral (injection) side on Day 3 and until Day 21 post-lesion, but did not show forelimb asymmetry on Day 28 to 56 post-lesion. The 8 μg 6-OHDA lesion group still exhibited forelimb asymmetry on Day 28 and 42 post-lesion, but not on Day 56. The gait analysis showed that the contralateral front and hind step cycles increased from Day 3 to 42 post-lesion and recovered on Day 56 post-lesion. In addition, our results displayed a dose-dependent reduction in TH+ cells and TH+ fibers, as well as dose-dependent apomorphine-induced rotations. In the rotarod test, the 8 μg 6-OHDA lesion group, but not the 4 μg group, decreased the latency to fall on the rotarod on Day 43 post-lesion. Conclusion In summary, unilateral striatal 6-OHDA injections of 4 and 8 μg induced spontaneous motor impairment in mice, which partially recovered starting on Day 28 post-lesion. Forced motor deficits were observed in the 8 g 6-OHDA lesion group, which remained stable on Day 43 post-lesion. In addition, the rotarod test and apomorphine-induced rotational test can distinguish between lesions of different extents and are useful tools for the assessment of functional recovery in studies screening novel potential therapies.
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Affiliation(s)
- Xiuping Sun
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China
| | - Xianglei Li
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China
| | - Ling Zhang
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China
| | - Yu Zhang
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China
| | - Xiaolong Qi
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China
| | - Siyuan Wang
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China
| | - Chuan Qin
- National Health Commission Key Laboratory of Human Disease Comparative Medicine, Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, National Center of Technology Innovation for Animal Model, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS) & Peking Union Medical College (PUMC), Beijing, China,Changping National Laboratory (CPNL), Beijing, China,*Correspondence: Chuan Qin,
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Oroszi T, de Boer SF, Nyakas C, Schoemaker RG, van der Zee EA. Chronic whole body vibration ameliorates hippocampal neuroinflammation, anxiety-like behavior, memory functions and motor performance in aged male rats dose dependently. Sci Rep 2022; 12:9020. [PMID: 35637277 PMCID: PMC9151803 DOI: 10.1038/s41598-022-13178-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 05/13/2022] [Indexed: 12/19/2022] Open
Abstract
AbstractWhole body vibration (WBV) is a form of passive exercise by the stimulation of mechanical vibration platform. WBV has been extensively investigated through clinical studies with main focus on the musculoskeletal system. However, pre-clinical data in the context of behavior, memory and motor functions with aged rodents are limited. The aim of this experiment was to investigate the dose dependent effects of a five weeks long WBV intervention with an aged animal model including anxiety-related behavior, memory and motor functions, as well as markers of (neuro)inflammation. Male Wistar rats (18 months) underwent 5 or 20 min daily vibration exposure or pseudo-treatment (i.e.: being subjected to the same environmental stimuli for 5 or 20 min, but without exposure to vibrations) 5 times per week. After 5 weeks treatment, cognitive functions, anxiety-like behavior and motor performance were evaluated. Finally, brain tissue was collected for immunohistological purposes to evaluate hippocampal (neuro)inflammation. Animals with 20 min daily session of WBV showed a decrease in their anxiety-like behavior and improvement in their spatial memory. Muscle strength in the grip hanging test was only significantly improved by 5 min daily WBV treatments, whereas motor coordination in the balance beam test was not significantly altered. Microglia activation showed a significant decrease in the CA1 and Dentate gyrus subregions by both dose of WBV. In contrast, these effects were less pronounced in the CA3 and Hilus subregions, where only 5 min dose showed a significant effect on microglia activation. Our results indicate, that WBV seems to be a comparable strategy on age-related anxiety, cognitive and motor decline, as well as alleviating age-related (neuro)inflammation.
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