1
|
Rafie F, Khaksari M, Amiresmaili S, Soltani Z, Pourranjbar M, Shirazpour S, Jafari E. Protective effects of early exercise on neuroinflammation, and neurotoxicity associated by traumatic brain injury: a behavioral and neurochemical approach. Int J Neurosci 2024; 134:700-713. [PMID: 36379667 DOI: 10.1080/00207454.2022.2144294] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/14/2022] [Accepted: 09/26/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The benefits of exercise in TBI have been proven. However, the time-dependent effects of exercise initiation and the involved mechanisms are controversial. We investigated the effects of preconditioning, continuous, early, and delayed treadmill exercise on motor behavior, brain edema, inflammation, and oxidative stress in experimental traumatic brain injury (TBI). MATERIALS AND METHODS 48 male rats were assigned into two groups: sedentary control (Sham and TBI) and exercise groups: 1MB (preconditioning, initiation beginning at 1 month before trauma), 1MBA (continuous, initiation beginning at 1 month before and continuing 1 month after trauma), 24hA (early, initiation beginning at 24 h after trauma), and 1WA (delay, initiation beginning at 1 week after trauma). The rats in exercise groups were forced to run on a treadmill five days a week for 30 min per day. Rotarod and open file were used to assess motor behavior. ELISA was also used to measure total antioxidant capacity (TAC), tumor necrosis factor-alpha (TNF-α), and malondialdehyde (MDA) in serum and CSF. RESULTS Exercise significantly decreased neurological impairments, motor deficits, and apoptosis compared with the sedentary group. Early (within 24 h) and ongoing (1 MBA) exercise significantly improved motor behavior after TBI. In addition, these exercise programs inhibited brain edema and the number of apoptotic cells. MDA and TNF-α levels increased in all exercise groups, but the effects were greater after early exercise than after delayed exercise, resulting in a significant decrease in TAC levels in serum and CSF. We discovered a positive correlation between MDA, TAC, and TNF-α concentration in serum and CSF. CONCLUSION Our finding suggests that early exercise (24hA) and 1MBA groups afford neuroprotection and reduce the second injury consequence, probably by reducing neuronal apoptosis and oxidative stress.
Collapse
Affiliation(s)
- Forouzan Rafie
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
- Department of Physiology and Pharmacology, Kerman Medical Science University, Kerman, Iran
| | - Mohammad Khaksari
- Department of Physiology and Pharmacology, Kerman Medical Science University, Kerman, Iran
- Endocrine and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Zahra Soltani
- Endocrine and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Pourranjbar
- Cardiovascular Research Center, Institute of Basic and Clinical Physiology sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Sara Shirazpour
- Endocrine and Metabolism Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
- Cardiovascular Research Center, Institute of Basic and Clinical Physiology sciences, Kerman University of Medical Sciences, Kerman, Iran
- Physiology Research Center, Institute of Basic and Clinical Physiology sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Elham Jafari
- Pathology and Stem Cell Research Center and Department of pathology, Kerman University of Medical Science, Kerman, Iran
| |
Collapse
|
2
|
Teasell R, Fleet JL, Harnett A. Post Stroke Exercise Training: Intensity, Dosage, and Timing of Therapy. Phys Med Rehabil Clin N Am 2024; 35:339-351. [PMID: 38514222 DOI: 10.1016/j.pmr.2023.06.025] [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] [Indexed: 03/23/2024]
Abstract
More intense, earlier exercise in rehabilitation results in improved motor outcomes following stroke. Timing and intensity of therapy delivery vary from study to study. For more intensive therapies, there are practical challenges in implementation. However, there are also opportunities for high intensity treatment through innovative approaches and new technologies. Timing of rehabilitation is important. As time post stroke increases, the dosage of therapy required to improve motor recovery outcomes increases. Very early rehabilitation may improve motor outcomes but should be delayed for at least 24 hours post stroke.
Collapse
Affiliation(s)
- Robert Teasell
- Parkwood Institute Research, Parkwood Institute, D4-101A, 550 Wellington Road, London, Canada; St. Joseph's Health Care London, London, Canada; Physical Medicine and Rehabilitation, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada.
| | - Jamie L Fleet
- Parkwood Institute Research, Parkwood Institute, D4-101A, 550 Wellington Road, London, Canada; St. Joseph's Health Care London, London, Canada; Physical Medicine and Rehabilitation, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Amber Harnett
- Parkwood Institute Research, Parkwood Institute, B3-123, 550 Wellington Road, London, Ontario N6C 0A7, Canada
| |
Collapse
|
3
|
Li Y, Lu T, Wei W, Lin Z, Ding L, Li Z, Xue X. Swimming Training Mitigates Neurological Impairment of Intracerebral Haemorrhage in Mice via the Serine-Threonine Kinase/Glycogen Synthase Kinase 3β Signalling Pathway. Neuroscience 2022; 501:72-84. [PMID: 35961525 DOI: 10.1016/j.neuroscience.2022.07.027] [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: 02/07/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 10/15/2022]
Abstract
Swimming training (ST) can mitigate functional disorders in neurological diseases, but the effect and mechanism of ST in improving the neurological function of intracerebral haemorrhage (ICH) have not been reported. Our study aimed to explore the protective effect of early ST on ICH mice and its relationship with the serine-threonine kinase (Akt)/glycogen synthase kinase 3β (GSK3β) pathway. Our findings showed that the ICH model mice had poor behavioural manifestations in the Y maze test and open field test compared to the ST group and sham group. The modified neurological severity score was increased in the ICH mice, and 7 days of ST intervention significantly attenuated the neurological deficits. The ratios of myo-inositol/creatine, lactate/creatine and glutamate/creatine were decreased, and the ratios of N-acetylaspartate/creatine and choline/creatine were increased in the ICH mice with ST intervention. ST intervention decreased the expression of Iba1 and GFAP. Seven days of ST significantly increased the expression of p-Akt/Akt compared to that in the ICH mice. Furthermore, the Akt kinase inhibitor GSK690693 exacerbated neurological impairment, increased the expression of Iba1, GFAP and Bax/Bcl-2, and reversed the anti-apoptotic effects and anti-glia activation of ST, which was associated with the inhibition of p-Akt/Akt and p-GSK3β/GSK3β expression. These results indicated that the protective role of ST in ICH was mediated via the Akt/GSK3β pathway. In conclusion, ST displayed neuroprotection by inhibiting apoptosis and glial activation in ICH mice by activating the Akt/GSK3β signalling pathway.
Collapse
Affiliation(s)
- Yongxu Li
- Affiliated Rehabilitation Hospital of Fujian University of Traditional Chinese Medicine, China; College of Rehabilitation Medicine, Fujian University of Chinese Medicine, China
| | - Taotao Lu
- Affiliated Rehabilitation Hospital of Fujian University of Traditional Chinese Medicine, China; College of Rehabilitation Medicine, Fujian University of Chinese Medicine, China
| | - Wei Wei
- Affiliated Rehabilitation Hospital of Fujian University of Traditional Chinese Medicine, China
| | - Zhicheng Lin
- Affiliated Rehabilitation Hospital of Fujian University of Traditional Chinese Medicine, China
| | - Linlin Ding
- Affiliated Rehabilitation Hospital of Fujian University of Traditional Chinese Medicine, China
| | - Zhaohui Li
- Anxi County Hospital of Traditional Chinese Medicine, Quanzhou, Fujian Province, China.
| | - Xiehua Xue
- Affiliated Rehabilitation Hospital of Fujian University of Traditional Chinese Medicine, China; Fujian Key Laboratory of Rehabilitation Technology and Cognition Rehabilitation, China.
| |
Collapse
|
4
|
Inoue T, Takamatsu Y, Nishio T, Soma K, Okamura M, Tohyama H, Maejima H. Combined treatment with exercise and α5GABA AR inhibitor promotes motor function recovery after intracerebral hemorrhage. Neurosci Lett 2022; 766:136344. [PMID: 34785309 DOI: 10.1016/j.neulet.2021.136344] [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: 09/29/2021] [Revised: 11/07/2021] [Accepted: 11/09/2021] [Indexed: 11/17/2022]
Abstract
The present study aimed to examine the synergistic effects of exercise and pharmacological inhibition of the α5 subunit-containing gamma-aminobutyric acid (GABA)A receptors (α5GABAAR) on motor function recovery after intracerebral hemorrhage (ICH). Wistar rats were divided into five groups (n = 8 per group): SHAM, ICH, ICH + exercise (ICH + EX), ICH + L-655,708 (ICH + L6), and ICH + L-655,708 and exercise (ICH + L6EX) groups. ICH was induced by microinjection of a collagenase solution. The ICH + EX and ICH + L6EX groups exercised on a treadmill (12 m/min for 30 min/day). L-655,708 (0.5 mg/kg), a negative allosteric modulator of α5GABAAR, was administered intraperitoneally to the ICH + L6 and ICH + L6EX groups. Each intervention was initiated 1 week after the ICH surgery and was performed for 3 weeks, followed by tissue collection, including the motor cortex and spinal cord. At 4 weeks after ICH, significant motor recovery was found in the ICH + L6EX group compared to the ICH group. L-655,708 administration increased brain-derived neurotrophic factor (BDNF) expression in the cortex. Regarding neuroplastic changes in the spinal cord, rats in the ICH + L6EX group showed a significant increase in several neuroplastic markers: 1) BDNF, 2) growth-associated protein 43 as an axonal sprouting marker, 3) synaptophysin as a synaptic marker, and 4) Nogo-A as an axonal growth inhibitor. This study is the first to demonstrate that combined treatment with exercise and α5GABAAR inhibitor effectively promoted motor function recovery after ICH. Regarding the underlying mechanism of post-ICH recovery with the combined treatment, the present study highlights the importance of both growth and inhibitory modification of axonal sprouting in the spinal cord.
Collapse
Affiliation(s)
- Takahiro Inoue
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan; Research Fellow of Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan
| | - Yasuyuki Takamatsu
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Taichi Nishio
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Kiho Soma
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Misato Okamura
- Graduate School of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Harukazu Tohyama
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan
| | - Hiroshi Maejima
- Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University, Kita 12 Nishi 5, Kita-ku, Sapporo 060-0812, Japan.
| |
Collapse
|
5
|
Xu Y, Yao Y, Lyu H, Ng S, Xu Y, Poon WS, Zheng Y, Zhang S, Hu X. Rehabilitation Effects of Fatigue-Controlled Treadmill Training After Stroke: A Rat Model Study. Front Bioeng Biotechnol 2020; 8:590013. [PMID: 33330421 PMCID: PMC7734251 DOI: 10.3389/fbioe.2020.590013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 10/28/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Traditional rehabilitation with uniformed intensity would ignore individual tolerance and introduce the second injury to stroke survivors due to overloaded training. However, effective control of the training intensity of different stroke survivors is still lacking. The purpose of the study was to investigate the rehabilitative effects of electromyography (EMG)-based fatigue-controlled treadmill training on rat stroke model. Methods: Sprague-Dawley rats after intracerebral hemorrhage and EMG electrode implantation surgeries were randomly distributed into three groups: the control group (CTRL, n = 11), forced training group (FOR-T, n = 11), and fatigue-controlled training group (FAT-C, n = 11). The rehabilitation interventions were delivered every day from day 2 to day 14 post-stroke. No training was delivered to the CTRL group. The rats in the FOR-T group were forced to run on the treadmill without rest. The fatigue level was monitored in the FAT-C group through the drop rate of EMG mean power frequency, and rest was applied to the rats when the fatigue level exceeded the moderate fatigue threshold. The speed and accumulated running duration were comparable in the FAT-C and the FOR-T groups. Daily evaluation of the motor functions was performed using the modified Neurological Severity Score. Running symmetry was investigated by the symmetry index of EMG bursts collected from both hind limbs during training. The expression level of neurofilament-light in the striatum was measured to evaluate the neuroplasticity. Results: The FAT-C group showed significantly lower modified Neurological Severity Score compared with the FOR-T (P ≤ 0.003) and CTRL (P ≤ 0.003) groups. The FAT-C group showed a significant increase in the symmetry of hind limbs since day 7 (P = 0.000), whereas the FOR-T group did not (P = 0.349). The FAT-C group showed a higher concentration of neurofilament-light compared to the CTRL group (P = 0.005) in the unaffected striatum and the FOR-T group (P = 0.021) in the affected striatum. Conclusion: The treadmill training with moderate fatigue level controlled was more effective in motor restoration than forced training. The fatigue-controlled physical training also demonstrated positive effects in the striatum neuroplasticity. This study indicated that protocol with individual fatigue-controlled training should be considered in both animal and clinical studies for better stroke rehabilitation.
Collapse
Affiliation(s)
- Yuchen Xu
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, China.,Key Laboratory of Biomedical Engineering of Ministry of Education, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, China
| | - Yuanfa Yao
- Key Laboratory of Biomedical Engineering of Ministry of Education, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, China.,Department of Endocrinology, The Affiliated Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hao Lyu
- Division of Neurosurgery, Department of Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, ShaTin, Hong Kong
| | - Stephanie Ng
- Division of Neurosurgery, Department of Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, ShaTin, Hong Kong
| | - Yingke Xu
- Key Laboratory of Biomedical Engineering of Ministry of Education, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, China.,Department of Endocrinology, The Affiliated Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wai Sang Poon
- Division of Neurosurgery, Department of Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, ShaTin, Hong Kong
| | - Yongping Zheng
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Shaomin Zhang
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, China.,Key Laboratory of Biomedical Engineering of Ministry of Education, Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, China
| | - Xiaoling Hu
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| |
Collapse
|
6
|
Early Exercise after Intracerebral Hemorrhage Inhibits Inflammation and Promotes Neuroprotection in the Sensorimotor Cortex in Rats. Neuroscience 2020; 438:86-99. [DOI: 10.1016/j.neuroscience.2020.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 05/03/2020] [Accepted: 05/04/2020] [Indexed: 01/03/2023]
|
7
|
Qiao Y, Ma Q, Zhai H, Li Y, Tang M. Exposure to female estrous is beneficial for male mice against transient ischemic stroke. Neurol Res 2019; 41:536-543. [PMID: 30810516 DOI: 10.1080/01616412.2019.1580461] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVE Exposure to female estrous, a natural rewarding experience, alleviates anxiety and depression, and the contribution of this behavior to stroke outcome is unknown. The aim of this study was to evaluate whether exposure to female estrous is beneficial to recovery following transient ischemic stroke in male mice. METHODS Cerebral ischemia was induced in male ICR mice with thread occlusion of the middle cerebral artery (MCAO) for 30 min followed by reperfusion. MCAO mice were randomly divided into MCAO group and Estrous Female Exposure (EFE) group. The mice in the EFE group were subjected to estrous female mouse interaction from day 1 until the end of the experiment. Mortality was recorded during the investigation. Behavioral functions were assessed by a beam-walking test and corner test from day 1 to day 10 after MCAO. Serum testosterone levels were analyzed with ELISA, and the expression levels of growth-associated protein-43 (GAP-43) and synaptophysin in the cortex of the ischemic hemisphere were determined by western blot on day 7 after MCAO. RESULTS Exposure to female estrous reduced the mortality induced by cerebral ischemic lesions. The beam-walking test demonstrated that exposure to female estrous significantly improved motor function recovery. The serum testosterone levels and ischemic cortex GAP-43 expression were significantly higher in MCAO male mice exposed to female estrous. CONCLUSION Exposure to female estrous reduces mortality and improves functional recovery in MCAO male mice. The study provides the first evidence to support the importance of female interaction to male stroke rehabilitation. ABBREVIATIONS GAP-43: growth-associated protein-43; SYP: Synaptophysin; MCAO: middle cerebral artery occlusion; OVXs: ovariectomies; CCA: common carotid artery; ECA: external carotid artery; EFE: estrous female exposure; TTC: 2,3,5-triphenyltetrazolium chloride; PAGE: polyacrylamide gel electrophoresis; PVDF: polyvinylidene difluoride; ANOVA: analysis of variance; LSD: least significant difference.
Collapse
Affiliation(s)
- Yuan Qiao
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China.,b Institute of Chinese Materia Medica , Shaanxi Provincial Academy of Traditional Chinese Medicine , Xi'an , China
| | - Qing Ma
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| | - Haifeng Zhai
- c National Institute on Drug Dependence , Peking University , Beijing , China
| | - Ya Li
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| | - Minke Tang
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| |
Collapse
|
8
|
Lin TW, Tsai SF, Kuo YM. Physical Exercise Enhances Neuroplasticity and Delays Alzheimer's Disease. Brain Plast 2018; 4:95-110. [PMID: 30564549 PMCID: PMC6296269 DOI: 10.3233/bpl-180073] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Accumulating evidence indicates that exercise can improve learning and memory as well as attenuate neurodegeneration, including Alzheimer's disease (AD). In addition to improving neuroplasticity by altering the synaptic structure and function in various brain regions, exercise also modulates systems like angiogenesis and glial activation that are known to support neuroplasticity. Moreover, exercise helps to maintain a cerebral microenvironment that facilitates synaptic plasticity by enhancing the clearance of Aβ, one of the main culprits of AD pathogenesis. The purpose of this review is to highlight the positive impacts of exercise on promoting neuroplasticity. Possible mechanisms involved in exercise-modulated neuroplasticity are also discussed. Undoubtedly, more studies are needed to design an optimal personalized exercise protocol for enhancing brain function.
Collapse
Affiliation(s)
- Tzu-Wei Lin
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Augusta, Georgia, USA
| | - Sheng-Feng Tsai
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Min Kuo
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| |
Collapse
|
9
|
Tamakoshi K, Ishida K, Hayao K, Takahashi H, Tamaki H. Behavioral Effect of Short- and Long-Term Exercise on Motor Functional Recovery after Intracerebral Hemorrhage in Rats. J Stroke Cerebrovasc Dis 2018; 27:3630-3635. [DOI: 10.1016/j.jstrokecerebrovasdis.2018.08.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 08/25/2018] [Indexed: 11/25/2022] Open
|
10
|
Post stroke depression: The sequelae of cerebral stroke. Neurosci Biobehav Rev 2018; 90:104-114. [DOI: 10.1016/j.neubiorev.2018.04.005] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 03/12/2018] [Accepted: 04/09/2018] [Indexed: 12/14/2022]
|
11
|
The beneficial role of early exercise training following stroke and possible mechanisms. Life Sci 2018; 198:32-37. [DOI: 10.1016/j.lfs.2018.02.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 02/04/2018] [Accepted: 02/12/2018] [Indexed: 12/21/2022]
|
12
|
Li F, Geng X, Khan H, Pendy JT, Peng C, Li X, Rafols JA, Ding Y. Exacerbation of Brain Injury by Post-Stroke Exercise Is Contingent Upon Exercise Initiation Timing. Front Cell Neurosci 2017; 11:311. [PMID: 29051728 PMCID: PMC5633611 DOI: 10.3389/fncel.2017.00311] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 09/19/2017] [Indexed: 12/19/2022] Open
Abstract
Accumulating evidence has demonstrated that post-stroke physical rehabilitation may reduce morbidity. The effectiveness of post-stroke exercise, however, appears to be contingent upon exercise initiation. This study assessed the hypothesis that very early exercise exacerbates brain injury, induces reactive oxygen species (ROS) generation, and promotes energy failure. A total of 230 adult male Sprague-Dawley rats were subjected to middle cerebral artery (MCA) occlusion for 2 h, and randomized into eight groups, including two sham injury control groups, three non-exercise and three exercise groups. Exercise was initiated after 6 h, 24 h and 3 days of reperfusion. Twenty-four hours after completion of exercise (and at corresponding time points in non-exercise controls), infarct volumes and apoptotic cell death were examined. Early brain oxidative metabolism was quantified by examining ROS, ATP and NADH levels 0.5 h after completion of exercise. Furthermore, protein expressions of angiogenic growth factors were measured in order to determine whether post-stroke angiogenesis played a role in rehabilitation. As expected, ischemic stroke resulted in brain infarction, apoptotic cell death and ROS generation, and diminished NADH and ATP production. Infarct volumes and apoptotic cell death were enhanced (p < 0.05) by exercise that was initiated after 6 h of reperfusion, but decreased by late exercise (24 h, 3 days). This exacerbated brain injury at 6 h was associated with increased ROS levels (p < 0.05), and decreased (p < 0.05) NADH and ATP levels. In conclusion, very early exercise aggravated brain damage, and early exercise-induced energy failure with ROS generation may underlie the exacerbation of brain injury. These results shed light on the manner in which exercise initiation timing may affect post-stroke rehabilitation.
Collapse
Affiliation(s)
- Fengwu Li
- Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
| | - Xiaokun Geng
- Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China.,Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - Hajra Khan
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - John T Pendy
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - Changya Peng
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| | - Xiaorong Li
- Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
| | - Jose A Rafols
- Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI, United States
| | - Yuchuan Ding
- Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China.,Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, United States
| |
Collapse
|
13
|
Bayley MT, Bowen A, English C, Teasell R, Eng JJ. Where to now? AVERT answered an important question, but raised many more. Int J Stroke 2017; 12:683-686. [PMID: 28820348 DOI: 10.1177/1747493017727338] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A Very Early Rehabilitation Trial (AVERT) was a Phase 3 randomized trial with over 2100 subjects post stroke that had unexpected results with better outcomes for usual care than those receiving very early mobilization. This review of published stroke clinical practice guidelines highlights that recommendations for mobilization have changed after publication of AVERT but also that developers have struggled to provide recommendations for appropriate dose, duration and intensity of mobilization in the acute post stroke period with available analyses from AVERT and other literature. This review highlights the priority research questions about early rehabilitation post stroke that need to be addressed through future large scale randomized controlled trials.
Collapse
Affiliation(s)
- Mark T Bayley
- 1 Division of Physical Medicine and Rehabilitation, Department of Medicine, University of Toronto, Toronto, Canada.,2 Toronto Rehabilitation Institute-University Health Network, Toronto, Canada
| | - Audrey Bowen
- 3 Division of Neuroscience and Experimental Psychology, University of Manchester MAHSC, Manchester, UK
| | - Coralie English
- 4 School of Health Sciences and Priority Research Centre for Stroke and Brain Injury, Hunter Medical Research Institute, University of Newcastle, Callaghan, Australia
| | - Robert Teasell
- 5 Lawson Health Research Institute, Western University, London, Canada
| | - Janice J Eng
- 6 Department of Physical Therapy, University of British Columbia and GF Strong Rehab Centre, Vancouver, Canada
| |
Collapse
|
14
|
Yong MS, Kim SG, Cheon SH. Effects of skilled reach training with affected forelimb and treadmill exercise on the expression of neurotrophic factor following ischemia-induced brain injury in rats. J Phys Ther Sci 2017; 29:647-650. [PMID: 28533602 PMCID: PMC5430265 DOI: 10.1589/jpts.29.647] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 12/25/2016] [Indexed: 11/24/2022] Open
Abstract
[Purpose] The aim of the present study was to investigate effects of skilled reach
training with affected forelimb and treadmill exercise on the expression of neurotrophic
factor following ischemia-induced brain injury in rats. [Subjects and Methods] Thirty male
Sprague-Dawley rats were divided into 3 groups randomly: namely, the control sacrified 2
weeks after surgery, skilled reach training with forepaw contralateral to brain injury for
2 weeks, and treadmill exercise for 2 weeks. Transient focal cerebral ischemia was induced
by intraluminal occlusion of the left middle cerebral artery. After that, skilled reach
training and treadmill exercise were conducted. Western blot analysis was performed to
investigate expressions of neurotrophic factors. [Results] There were significant
differences in brain-derived neurotrophic factor and nerve growth factor expression
between the control group and the experimental group. There were no significant
differences in brain-derived neurotrophic factor and nerve growth factor expression
between the skilled reach training group and the treadmill exercise group. [Conclusion]
Skilled reach training and treadmill exercise can affect the expression of neurotrophic
factors.
Collapse
Affiliation(s)
- Min-Sik Yong
- Department of Physical Therapy, Youngsan University, Republic of Korea
| | - Seong-Gil Kim
- Department of Physical Therapy, Uiduk University, Republic of Korea
| | - Song-Hee Cheon
- Department of Physical Therapy, Youngsan University, Republic of Korea
| |
Collapse
|
15
|
Li F, Pendy JT, Ding JN, Peng C, Li X, Shen J, Wang S, Geng X. Exercise rehabilitation immediately following ischemic stroke exacerbates inflammatory injury. Neurol Res 2017; 39:530-537. [PMID: 28415917 DOI: 10.1080/01616412.2017.1315882] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Fengwu Li
- China–America Institute of Neuroscience, Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
| | - John T. Pendy
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Jessie N. Ding
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Changya Peng
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Xiaorong Li
- China–America Institute of Neuroscience, Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
| | - Jiamei Shen
- China–America Institute of Neuroscience, Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Sainan Wang
- China–America Institute of Neuroscience, Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
| | - Xiaokun Geng
- China–America Institute of Neuroscience, Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
- Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
16
|
Li F, Shi W, Zhao EY, Geng X, Li X, Peng C, Shen J, Wang S, Ding Y. Enhanced apoptosis from early physical exercise rehabilitation following ischemic stroke. J Neurosci Res 2016; 95:1017-1024. [PMID: 27571707 DOI: 10.1002/jnr.23890] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 06/30/2016] [Accepted: 07/26/2016] [Indexed: 01/28/2023]
Abstract
The effectiveness of the rehabilitative benefits of physical exercise appears to be contingent upon when the exercise is initiated after stroke. The present study assessed the hypothesis that very early exercise increases the extent of apoptotic cell death via increased expression of proapoptotic proteins in a rat stroke model. Adult male Sprague-Dawley rats were subjected to middle cerebral artery occlusion (MCAO) for 2 hr using an intraluminal filament and assigned to four nonexercise and three exercise groups. Exercise on a Rota-Rod was initiated for 30 min at 6 hr (considered very early), at 24 hr (early), and at 3 days (relatively late) after reperfusion. At 24 hr after exercise, apoptotic cell death was determined. At 3 and 24 hr after exercise, the expression of pro- and antiapoptotic proteins was evaluated through Western blotting. As expected, ischemic stroke significantly increased the levels of apoptotic cell death. Compared with the stroke group without exercise, apoptotic cell death was further increased (P < 0.05) at 6 hr but not at 24 hr or 3 days with exercise. This exacerbated cell injury was associated with increased expression of proapoptotic proteins (BAX and caspase-3). The expression of Bcl-2, an antiapoptotic protein, was not affected by exercise. In ischemic stroke, apoptotic cell death was enhanced by very early exercise in association with increased expression of proapoptotic proteins. These results shed light on the time-sensitive effect of exercise in poststroke rehabilitation. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Fengwu Li
- China-America Institute of Neuroscience, Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Wei Shi
- Department of General Surgery, Luhe Hospital, Capital Medical University, Beijing, China
| | - Ethan Y Zhao
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, Michigan
| | - Xiaokun Geng
- China-America Institute of Neuroscience, Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.,Department of Neurosurgery, Wayne State University School of Medicine, Detroit, Michigan.,Department of Neurology, Luhe Hospital, Capital Medical University, Beijing, China
| | - Xiaorong Li
- China-America Institute of Neuroscience, Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Changya Peng
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, Michigan
| | - Jiamei Shen
- China-America Institute of Neuroscience, Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.,Department of Neurosurgery, Wayne State University School of Medicine, Detroit, Michigan
| | - Sainan Wang
- China-America Institute of Neuroscience, Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Yuchuan Ding
- China-America Institute of Neuroscience, Department of Neurology, Beijing Luhe Hospital, Capital Medical University, Beijing, China.,Department of Neurosurgery, Wayne State University School of Medicine, Detroit, Michigan
| |
Collapse
|
17
|
Shen J, Huber M, Zhao EY, Peng C, Li F, Li X, Geng X, Ding Y. Early rehabilitation aggravates brain damage after stroke via enhanced activation of nicotinamide adenine dinucleotide phosphate oxidase (NOX). Brain Res 2016; 1648:266-276. [PMID: 27495986 DOI: 10.1016/j.brainres.2016.08.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 08/01/2016] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Although physical exercise has emerged as a potential therapeutic modality for functional deficits following ischemic stroke, the extent of this effect appears to be contingent upon the time of exercise initiation. In the present study, we assessed how exercise timing affected brain damage through hyperglycolysis-associated NADPH oxidase (NOX) activation. METHODS Using an intraluminal filament, adult male Sprague-Dawley rats were subjected to middle cerebral artery occlusion (MCAO) for 2h and assigned to one non-exercise and three exercise groups. Exercise on Rota-rod was initiated for 30min at 6h (considered very early), at 24h (early), and at day 3 (relatively late) after reperfusion. Lactate production was measured 30min after exercise completion, and NOX activity and protein expression of NOX subunits (p47(phox), gp91(phox), p22(phox) and p67(phox)) and glucose transporter 1 and 3 (Glut-1 and -3) were measured at 3 and 24h after exercise. Apoptotic cell death was determined at 24h after exercise. RESULTS Lactate production and Glut-1 and Glut-3 expression were increased after very early exercise (6h), but not after late exercise (3 days), suggesting hyperglycolysis. NOX activity was increased with the initiation of exercise at 6h (P<0.05), but not 24h or 3 days, following stroke. Early (6 and 24h), but not late (3 days), post-stroke exercise was associated with increased (P<0.05) expression of the NOX protein subunit p47(phox), gp91(phox)and p67(phox). This may have led to the enhanced apoptosis observed after early exercise in ischemic rats. CONCLUSION Hyperglycolysis and NOX activation was associated with an elevation in apoptotic cell death after very early exercise, and the detrimental effect of exercise on stroke recovery began to decrease when exercise was initiated 24h after reperfusion.
Collapse
Affiliation(s)
- Jiamei Shen
- China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, China; Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Mitchell Huber
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Ethan Y Zhao
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Changya Peng
- Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
| | - Fengwu Li
- China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, China
| | - Xiaorong Li
- China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, China
| | - Xiaokun Geng
- China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, China; Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA.
| | - Yuchuan Ding
- China-America Institute of Neuroscience, Beijing Luhe Hospital, Capital Medical University, China; Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA.
| |
Collapse
|
18
|
Motor Skills Training Improves Sensorimotor Dysfunction and Increases Microtubule-Associated Protein 2 mRNA Expression in Rats with Intracerebral Hemorrhage. J Stroke Cerebrovasc Dis 2016; 25:2071-7. [DOI: 10.1016/j.jstrokecerebrovasdis.2016.05.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/20/2016] [Accepted: 05/06/2016] [Indexed: 11/21/2022] Open
|
19
|
Constans A, Pin-Barre C, Temprado JJ, Decherchi P, Laurin J. Influence of Aerobic Training and Combinations of Interventions on Cognition and Neuroplasticity after Stroke. Front Aging Neurosci 2016; 8:164. [PMID: 27445801 PMCID: PMC4928497 DOI: 10.3389/fnagi.2016.00164] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 06/21/2016] [Indexed: 12/17/2022] Open
Abstract
Stroke often aggravated age-related cognitive impairments that strongly affect several aspects of quality of life. However, few studies are, to date, focused on rehabilitation strategies that could improve cognition. Among possible interventions, aerobic training is well known to enhance cardiovascular and motor functions but may also induce beneficial effects on cognitive functions. To assess the effectiveness of aerobic training on cognition, it seems necessary to know whether training promotes the neuroplasticity in brain areas involved in cognitive functions. In the present review, we first explore in both human and animal how aerobic training could improve cognition after stroke by highlighting the neuroplasticity mechanisms. Then, we address the potential effect of combinations between aerobic training with other interventions, including resistance exercises and pharmacological treatments. In addition, we postulate that classic recommendations for aerobic training need to be reconsidered to target both cognition and motor recovery because the current guidelines are only focused on cardiovascular and motor recovery. Finally, methodological limitations of training programs and cognitive function assessment are also developed in this review to clarify their effectiveness in stroke patients.
Collapse
Affiliation(s)
| | - Caroline Pin-Barre
- Aix-Marseille Université, CNRS, ISM, UMR 7287Marseille, France; Université Nice Sophia Antipolis, LAMHESS, UPRES EA 6309Nice, France
| | | | | | - Jérôme Laurin
- Aix-Marseille Université, CNRS, ISM, UMR 7287 Marseille, France
| |
Collapse
|
20
|
Hasan SMM, Rancourt SN, Austin MW, Ploughman M. Defining Optimal Aerobic Exercise Parameters to Affect Complex Motor and Cognitive Outcomes after Stroke: A Systematic Review and Synthesis. Neural Plast 2016; 2016:2961573. [PMID: 26881101 PMCID: PMC4736968 DOI: 10.1155/2016/2961573] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Revised: 11/27/2015] [Accepted: 11/29/2015] [Indexed: 01/21/2023] Open
Abstract
Although poststroke aerobic exercise (AE) increases markers of neuroplasticity and protects perilesional tissue, the degree to which it enhances complex motor or cognitive outcomes is unknown. Previous research suggests that timing and dosage of exercise may be important. We synthesized data from clinical and animal studies in order to determine optimal AE training parameters and recovery outcomes for future research. Using predefined criteria, we included clinical trials of stroke of any type or duration and animal studies employing any established models of stroke. Of the 5,259 titles returned, 52 articles met our criteria, measuring the effects of AE on balance, lower extremity coordination, upper limb motor skills, learning, processing speed, memory, and executive function. We found that early-initiated low-to-moderate intensity AE improved locomotor coordination in rodents. In clinical trials, AE improved balance and lower limb coordination irrespective of intervention modality or parameter. In contrast, fine upper limb recovery was relatively resistant to AE. In terms of cognitive outcomes, poststroke AE in animals improved memory and learning, except when training was too intense. However, in clinical trials, combined training protocols more consistently improved cognition. We noted a paucity of studies examining the benefits of AE on recovery beyond cessation of the intervention.
Collapse
Affiliation(s)
- S. M. Mahmudul Hasan
- Recovery & Performance Laboratory, Faculty of Medicine, Memorial University, L.A. Miller Centre, Room 400, 100 Forest Road, St. John's, NL, Canada A1A 1E5
| | - Samantha N. Rancourt
- Recovery & Performance Laboratory, Faculty of Medicine, Memorial University, L.A. Miller Centre, Room 400, 100 Forest Road, St. John's, NL, Canada A1A 1E5
| | - Mark W. Austin
- Recovery & Performance Laboratory, Faculty of Medicine, Memorial University, L.A. Miller Centre, Room 400, 100 Forest Road, St. John's, NL, Canada A1A 1E5
| | - Michelle Ploughman
- Recovery & Performance Laboratory, Faculty of Medicine, Memorial University, L.A. Miller Centre, Room 400, 100 Forest Road, St. John's, NL, Canada A1A 1E5
| |
Collapse
|
21
|
Jones TA, Adkins DL. Motor System Reorganization After Stroke: Stimulating and Training Toward Perfection. Physiology (Bethesda) 2015; 30:358-70. [PMID: 26328881 PMCID: PMC4556825 DOI: 10.1152/physiol.00014.2015] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Stroke instigates regenerative responses that reorganize connectivity patterns among surviving neurons. The new connectivity patterns can be suboptimal for behavioral function. This review summarizes current knowledge on post-stroke motor system reorganization and emerging strategies for shaping it with manipulations of behavior and cortical activity to improve functional outcome.
Collapse
Affiliation(s)
- Theresa A Jones
- Psychology Department, Neuroscience Institute, University of Texas at Austin, Austin, Texas; and
| | - DeAnna L Adkins
- Neurosciences Department, and Health Sciences & Research Department, Colleges of Medicine & Health Professions, Medical University of South Carolina, Charleston, South Carolina
| |
Collapse
|
22
|
Riordan MA, Kyle M, Dedeo C, Villwock MR, Bauer M, Vallano ML, Deshaies EM. Mild exercise reduces cerebral vasospasm after aneurysm subarachnoid hemorrhage: a retrospective clinical study and correlation with laboratory investigation. ACTA NEUROCHIRURGICA. SUPPLEMENT 2015; 120:55-61. [PMID: 25366600 DOI: 10.1007/978-3-319-04981-6_10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND Aneurysmal subarachnoid hemorrhage (SAH) is a leading cause of death and disability and is often complicated by cerebral vasospasm (CV). Conventional management to prevent CV includes bedrest; however, inactivity places the patient at risk for nonneurological complications. We investigated the effect of mild exercise after SAH in clinical and laboratory settings. METHODS Clinical: Data from 80 patients with SAH were analyzed retrospectively. After aneurysms were secured, physical therapy was initiated as tolerated. CV and complications were compared by the timing of active physical therapy. Laboratory: 18 Rodents were divided into three groups: (1) control, (2) SAH without exercise, and (3) SAH plus mild exercise. On day 5, brainstems were removed and analyzed for the injury marker inducible nitric oxide synthase (iNOS). RESULTS Clinical: Mild exercise before day 4 significantly lowered the incidence of symptomatic CV compared with the nonexercised group. There was no difference in the incidence of additional complications based upon exercise. Laboratory: Staining for iNOS was significantly higher in the SAH group than the control group, but there was no difference between exercised and nonexercised SAH groups, confirming that exercise did not promote neuronal injury. CONCLUSION Early mobilization significantly reduced clinical CV. The relationship should be studied further in a prospective trial with defined exercise regimens.
Collapse
Affiliation(s)
- Margaret A Riordan
- Department of Neurosurgery, SUNY Upstate Medical University, Syracuse, NY, USA
| | | | | | | | | | | | | |
Collapse
|
23
|
Abstract
PURPOSE To describe a daily physical therapy (PT) intervention program and outcomes for 2 young children with spastic quadriplegia, Gross Motor Function Classification System (GMFCS) level V, and to evaluate the feasibility of using a daily program in an urban children's hospital outpatient setting. SUMMARY OF KEY POINTS Two young children, GMFCS level V, received 2 hours of PT intervention based on motor learning principles 5 days a week for 4 consecutive weeks. Gross Motor Functional Measure (GMFM-66, GMFM-88) and the Bayley Scales of Infant Development, Third Edition, were used as pre- and postoutcome measures. The daily, high intensity intervention was well tolerated. Improvements in motor function, language, and cognitive skills were found. STATEMENT OF CONCLUSION A daily PT program appears feasible and may improve overall development in young children with cerebral palsy in GMFCS level V.
Collapse
|
24
|
Abstract
Background:The current study explored the effects of treadmill exercise intensity on functional recovery and hippocampal phospho-NR2B (p-NR2B) expression in cerebral ischemic rats, induced by permanent middle cerebral artery occlusion (MCAO) surgery.Method:Adult male Sprague-Dawley rats were randomly divided into four groups, including sham, no exercise (NE), low intensity training (LIT, v = 15 m/min), and moderate intensity training groups (MIT, v = 20 m/min). At different time points, the hippocampal expressions of p-NR2B and total NR2B were examined. In addition, neurological deficit score (NDS), body weight, and 2,3,5-triphenyltetrazolium chloride (TTC) staining were used to evaluate brain infarct volume as assessments of post-stroke functional recovery. In order to investigate the effect of exercise on survival, the mortality rate was also recorded.Results:The results showed that treadmill exercise significantly decreased hippocampal expression of p-NR2B but didn't change the total NR2B, compared to the NE group on the 3rd, 7th, and 14th days following MCAO surgery. The effect on changes in p-NR2B levels, body weight, and brain infarct volume were more significant in the LIT compared to the MIT group.Discussion and Conclusion:The current findings demonstrate that physical exercise can produce neuroprotective effects, in part by down-regulating p-NR2B expression. Furthermore, the appropriate intensity of physical exercise is critical for post-stroke rehabilitation.
Collapse
|
25
|
Yong MS, Hwangbo K. Skilled reach training influences brain recovery following intracerebral hemorrhage in rats. J Phys Ther Sci 2014; 26:405-7. [PMID: 24707093 PMCID: PMC3976012 DOI: 10.1589/jpts.26.405] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Accepted: 10/02/2013] [Indexed: 01/19/2023] Open
Abstract
[Purpose] The present study investigated how skilled reach training influences
functional and neurological brain recovery via a rat model with intracerebral hemorrhage.
[Subjects] Thirty rats with intracerebral hemorrhage were divided into 2 groups randomly:
the control group (CON) that did not receive any treatment, and the experimental group
(SRT) that received skilled reach training. [Methods] The experimental group was trained
through skilled reaching training with the affected upper limb in 15-minute sessions
administered 6 days per week for 4 weeks. [Results] In the behavioral test, the results
showed that motor function was significantly improved in the skilled reach training group
compared with the control group. In the neurological teat, the expression level of
brain-derived neurotrophic factor (BDNF) was significantly increased in the skilled reach
training group compared with the control group. [Conclusion] Skilled reach training is
able to facilitate both the expression of neurotrophic factor in the motor cortex and
motor function recovery following intracerebral hemorrhage.
Collapse
Affiliation(s)
- Min-Sik Yong
- Department of Rehabilitation Science, Graduate School, Daegu University, Republic of Korea
| | - Kak Hwangbo
- Department of Physical Therapy, College of Rehabilitation Science, Daegu University, Republic of Korea
| |
Collapse
|
26
|
Chen J, Qin J, Su Q, Liu Z, Yang J. Treadmill rehabilitation treatment enhanced BDNF-TrkB but not NGF-TrkA signaling in a mouse intracerebral hemorrhage model. Neurosci Lett 2012; 529:28-32. [DOI: 10.1016/j.neulet.2012.09.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Revised: 08/18/2012] [Accepted: 09/12/2012] [Indexed: 01/19/2023]
|
27
|
Bai Y, Hu Y, Wu Y, Zhu Y, He Q, Jiang C, Sun L, Fan W. A prospective, randomized, single-blinded trial on the effect of early rehabilitation on daily activities and motor function of patients with hemorrhagic stroke. J Clin Neurosci 2012; 19:1376-9. [PMID: 22819061 DOI: 10.1016/j.jocn.2011.10.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 10/22/2011] [Accepted: 10/25/2011] [Indexed: 10/28/2022]
Abstract
To investigate whether early rehabilitation has a positive impact on the recovery of the activities of daily living and motor function after intracerebral hemorrhagic stroke, 364 patients with hemorrhagic stroke were selected and randomly divided into a rehabilitation group and a control group. The rehabilitation group underwent a standardized, three-stage rehabilitation program. The control group was treated with standard hospital ward, internal medical intervention. The simplified Fugl-Myere assessment scale (FMA) and Modified Barthel Index (MBI) were administered at various time points. The magnitude of improvement was significantly higher in the rehabilitation group than in the control group for both the FMA (p<0.05) and MBI scores (p<0.05). The greatest improvement was observed in the first month post-stroke. Thus, our study shows that early rehabilitation can significantly improve the daily activities and motor functions of patients with stroke.
Collapse
Affiliation(s)
- YuLong Bai
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, 12 Wulumuqi Middle Road, Shanghai 200040, China
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Kim MH, Lee SM, Koo HM. Ipsilateral and contralateral skilled reach training contributes to the motor function and brain recovery after left haemorrhagic stroke of rats. Brain Inj 2012; 26:1127-35. [DOI: 10.3109/02699052.2012.666372] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
29
|
Yang YR, Chang HC, Wang PS, Wang RY. Motor Performance Improved by Exercises in Cerebral Ischemic Rats. J Mot Behav 2012; 44:97-103. [DOI: 10.1080/00222895.2012.654524] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
30
|
Koo H, Kim M, Lee S, Han J. Skilled Reach Training Induces Synaptogenesis on the Hippocampus after Left Hemorrhagic Stroke in Rats. J Phys Ther Sci 2012. [DOI: 10.1589/jpts.24.127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Hyunmo Koo
- Department of Physical Therapy, College of Science, Kyungsung University
| | - Minhee Kim
- Laboratory of Neuroscience, Department of Physical Therapy, College of Rehabilitation Science, Daegu University
| | - Sunmin Lee
- Department of Occupational Therapy, Dongju College
| | - Jintae Han
- Department of Physical Therapy, College of Science, Kyungsung University
| |
Collapse
|
31
|
Kirkman MA, Allan SM, Parry-Jones AR. Experimental intracerebral hemorrhage: avoiding pitfalls in translational research. J Cereb Blood Flow Metab 2011; 31:2135-51. [PMID: 21863040 PMCID: PMC3210340 DOI: 10.1038/jcbfm.2011.124] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Revised: 07/20/2011] [Accepted: 07/28/2011] [Indexed: 12/12/2022]
Abstract
Intracerebral hemorrhage (ICH) has the highest mortality of all stroke subtypes, yet treatments are mainly limited to supportive management, and surgery remains controversial. Despite significant advances in our understanding of ICH pathophysiology, we still lack preclinical models that accurately replicate the underlying mechanisms of injury. Current experimental ICH models (including autologous blood and collagenase injection) simulate different aspects of ICH-mediated injury but lack some features of the clinical condition. Newly developed models, notably hypertension- and oral anticoagulant therapy-associated ICH models, offer added benefits but further study is needed to fully validate them. Here, we describe and discuss current approaches to experimental ICH, with suggestions for changes in how this condition is studied in the laboratory. Although advances in imaging over the past few decades have allowed greater insight into clinical ICH, there remains an important role for experimental models in furthering our understanding of the basic pathophysiologic processes underlying ICH, provided limitations of animal models are borne in mind. Owing to differences in existing models and the failed translation of benefits in experimental ICH to clinical practice, putative neuroprotectants should be trialed in multiple models using both histological and functional outcomes until a more accurate model of ICH is developed.
Collapse
Affiliation(s)
- Matthew A Kirkman
- Faculty of Life Sciences, The University of Manchester, Manchester, UK
| | - Stuart M Allan
- Faculty of Life Sciences, The University of Manchester, Manchester, UK
| | - Adrian R Parry-Jones
- The University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Salford, UK
| |
Collapse
|
32
|
Ishida A, Tamakoshi K, Hamakawa M, Shimada H, Nakashima H, Masuda T, Hida H, Ishida K. Early onset of forced impaired forelimb use causes recovery of forelimb skilled motor function but no effect on gross sensory-motor function after capsular hemorrhage in rats. Behav Brain Res 2011; 225:126-34. [PMID: 21771615 DOI: 10.1016/j.bbr.2011.06.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Revised: 06/23/2011] [Accepted: 06/28/2011] [Indexed: 10/18/2022]
Abstract
Intensive use of the impaired forelimb promotes behavioral recovery and induces plastic changes of the central nervous system after stroke. However, the optimal onset of intensive use treatment after stroke is controversial. In this study, we investigated whether early forced impaired limb use (FLU) initiated 24h after intracerebral hemorrhage (ICH) of the internal capsule affected behavioral recovery and histological damage. Rats were subjected to ICH via low-dose collagenase infusion or sham stroke. One day after surgery, the ipsilateral forelimbs of half of the ICH and sham rats were casted for a week to induce the use of their contralateral forelimbs. Behavioral assessments were performed on days 10-12 and 26-28 after the surgery and followed by histological assessments. Improvements in skilled reaching and coordinated stepping function were found in the FLU-treated group in comparison with the untreated group after ICH. Additionally, FLU-treated ICH animals showed more normal and precise reaching and stepping movements as compared with ICH control animals. In contrast, FLU did not have a significant impact on gross sensory-motor functions such as the motor deficit score, contact placing response and spontaneous usage of the impaired paw. The volume of tissue lost and the number of spared corticospinal neurons in lesioned motor cortex were not affected by early FLU after ICH. These findings demonstrate the efficacy of early focused use of an impaired limb after internal capsule hemorrhage.
Collapse
Affiliation(s)
- Akimasa Ishida
- Department of Physical Therapy, Program in Physical and Occupational Therapy, Nagoya University Graduate School of Medicine, Nagoya, Aichi 461-8673, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
33
|
|
34
|
Prilloff S, Henrich-Noack P, Kropf S, Sabel BA. Experience-Dependent Plasticity and Vision Restoration in Rats after Optic Nerve Crush. J Neurotrauma 2010; 27:2295-307. [DOI: 10.1089/neu.2010.1439] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- Sylvia Prilloff
- Institute of Medical Psychology, Otto-von-Guericke University of Magdeburg, Magdeburg, Germany
| | - Petra Henrich-Noack
- Institute of Medical Psychology, Otto-von-Guericke University of Magdeburg, Magdeburg, Germany
| | - Siegfried Kropf
- Institute for Biometry and Medical Informatics, Otto-von-Guericke University of Magdeburg, Magdeburg, Germany
| | - Bernhard A. Sabel
- Institute of Medical Psychology, Otto-von-Guericke University of Magdeburg, Magdeburg, Germany
| |
Collapse
|
35
|
Takamatsu Y, Ishida A, Hamakawa M, Tamakoshi K, Jung CG, Ishida K. Treadmill running improves motor function and alters dendritic morphology in the striatum after collagenase-induced intracerebral hemorrhage in rats. Brain Res 2010; 1355:165-73. [DOI: 10.1016/j.brainres.2010.07.070] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2010] [Revised: 07/17/2010] [Accepted: 07/19/2010] [Indexed: 11/24/2022]
|