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Martin SJ, Schneider R. Multiple sclerosis and exercise-A disease-modifying intervention of mice or men? Front Neurol 2023; 14:1190208. [PMID: 37885474 PMCID: PMC10598461 DOI: 10.3389/fneur.2023.1190208] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 09/19/2023] [Indexed: 10/28/2023] Open
Abstract
Research suggests that physical exercise can promote an anti-inflammatory and neuroprotective state. If so, increasing or optimizing exercise could be considered a 'disease-modifying intervention' in neuroinflammatory diseases, such as multiple sclerosis (MS). Exercise intervention studies conducted in animal models of MS are promising. Various aerobic and strength training regimes have been shown to delay disease onset and to reduce both the clinical and pathological disease severity in mice. However, fundamental differences between the physiology of animals and humans, the disease states studied, and the timing of exercise intervention are significant. In animal models of MS, most exercise interventions begin before disease initiation and before any clinical sign of disease. In contrast, studies in humans recruit participants on average nearly a decade after diagnosis and often once disability is established. If, as is thought to be the case for disease-modifying treatments, the immunomodulatory effect of exercise decreases with advancing disease duration, current studies may therefore fail to detect the true disease-modifying potential. Clinical studies in early disease cohorts are needed to determine the role of exercise as a disease-modifying intervention for people with MS.
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Affiliation(s)
- Sarah-Jane Martin
- BARLO MS Center, St. Michael's Hospital, Toronto, ON, Canada
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada
- Institute of Infection & Immunity, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Raphael Schneider
- BARLO MS Center, St. Michael's Hospital, Toronto, ON, Canada
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada
- Institute of Medical Science, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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2
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Parnow A, Hafedh M, Tsunoda I, Patel DI, Baker JS, Saeidi A, Bagchi S, Sengupta P, Dutta S, Łuszczki E, Stolarczyk A, Oleksy Ł, Al Kiyumi MH, Laher I, Zouhal H. Effectiveness of exercise interventions in animal models of multiple sclerosis. Front Med (Lausanne) 2023; 10:1143766. [PMID: 37089595 PMCID: PMC10116993 DOI: 10.3389/fmed.2023.1143766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/03/2023] [Indexed: 04/03/2023] Open
Abstract
Multiple sclerosis (MS) is associated with an impaired immune system that severely affects the spinal cord and brain, and which is marked by progressive inflammatory demyelination. Patients with MS may benefit from exercise training as a suggested course of treatment. The most commonly used animal models of studies on MS are experimental autoimmune/allergic encephalomyelitis (EAE) models. The present review intends to concisely discuss the interventions using EAE models to understand the effectiveness of exercise as treatment for MS patients and thereby provide clear perspective for future research and MS management. For the present literature review, relevant published articles on EAE animal models that reported the impacts of exercise on MS, were extracted from various databases. Existing literature support the concept that an exercise regimen can reduce the severity of some of the clinical manifestations of EAE, including neurological signs, motor function, pain, and cognitive deficits. Further results demonstrate the mechanisms of EAE suppression with information relating to the immune system, demyelination, regeneration, and exercise in EAE. The role for neurotrophic factors has also been investigated. Analyzing the existing reports, this literature review infers that EAE is a suitable animal model that can help researchers develop further understanding and treatments for MS. Besides, findings from previous animal studies supports the contention that exercise assists in ameliorating MS progression.
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Affiliation(s)
- Abdolhossein Parnow
- Department of Sport Biological Sciences, Physical Education and Sports Sciences Faculty, Razi University, Kermanshah, Iran
- *Correspondence: Abdolhossein Parnow,
| | - Muthanna Hafedh
- Department of Exercise Physiology, General Directorate of Education Basrah, Basrah, Iraq
- Department of Sports Activities, College of Adm&Eco/Qurna, University of Basrah, Basrah, Iraq
| | - Ikuo Tsunoda
- Department of Microbiology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Darpan I. Patel
- School of Nursing, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
| | - Julien S. Baker
- Department of Sport, Physical Education and Health, Centre for Health and Exercise Science Research, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China
| | - Ayoub Saeidi
- Department of Physical Education and Sport Sciences, Faculty of Humanities and Social Sciences, University of Kurdistan, Sanandaj, Iran
| | - Sovan Bagchi
- Department of Biomedical Sciences, Gulf Medical University, Ajman, United Arab Emirates
- Sovan Bagchi,
| | - Pallav Sengupta
- Department of Biomedical Sciences, Gulf Medical University, Ajman, United Arab Emirates
| | - Sulagna Dutta
- School of Medical Sciences, Bharath Institute of Higher Education and Research (BIHER), Chennai, India
| | - Edyta Łuszczki
- Institute of Health Sciences, Medical College of Rzeszów University, Rzeszów, Poland
| | - Artur Stolarczyk
- Department of Orthopedics and Rehabilitation, Medical University of Warsaw, Warsaw, Poland
| | - Łukasz Oleksy
- Department of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, Kraków, Poland
| | - Maisa Hamed Al Kiyumi
- Department of Family Medicine and Public Health, Sultan Qaboos University Hospital, Sultan Qaboos University, Muscat, Oman
| | - Ismail Laher
- Department of Anesthesiology, Pharmacology and Therapeutics, The University of British Columbia, Vancouver, BC, Canada
| | - Hassane Zouhal
- University of Rennes, M2S (Laboratoire Mouvement, Sport, Santé) - EA 1274, Rennes, France
- Institute International des Sciences du Sport (2I2S), Irodouër, France
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3
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Hamdi L, Nabat H, Goldberg Y, Fainstein N, Segal S, Mediouni E, Asis Y, Touloumi O, Grigoriadis N, Katz A, Ben-Hur T, Einstein O. Exercise training alters autoimmune cell invasion into the brain in autoimmune encephalomyelitis. Ann Clin Transl Neurol 2022; 9:1792-1806. [PMID: 36217574 DOI: 10.1002/acn3.51677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/01/2022] [Accepted: 09/23/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND The mechanisms by which exercise training (ET) elicits beneficial effects on the systemic immune system and the central nervous system (CNS) in autoimmune neuroinflammation are not fully understood. OBJECTIVES To investigate (1) the systemic effects of high-intensity continuous training (HICT) on the migratory potential of autoimmune cells; (2) the direct effects of HICT on blood-brain-barrier (BBB) properties. METHODS Healthy mice were subjected to high-intensity continuous training (HICT) by treadmill running. The proteolipid protein (PLP) transfer EAE model was utilized to examine the immunomodulatory effects of training, where PLP-reactive lymph-node cells (LNCs) from HICT and sedentary donor mice were analyzed in vitro and transferred to naïve recipients that developed EAE. To examine neuroprotection, encephalitogenic LNCs from donor mice were transferred into HICT or sedentary recipient mice and the BBB was analyzed. RESULTS Transfer of PLP-reactive LNCs obtained from HICT donor mice attenuated EAE severity and inflammation in recipient mice. HICT markedly inhibited very late antigen (VLA)-4 and lymphocyte function-associated antigen (LFA)-1 expression in LNCs. Transfer of encephalitogenic LNCs into HICT recipients resulted in milder EAE and attenuated CNS inflammation. HICT reduced BBB permeability and the expression of intercellular adhesion molecule (ICAM)-1 and vascular cell adhesion molecule (VCAM)-1 in CNS blood vessels. INTERPRETATION HICT attenuates EAE development by both immunomodulatory and neuroprotective effects. The reduction in destructive CNS inflammation in EAE is attributed to systemic inhibition of autoreactive cell migratory potential, as well as reduction in BBB permeability, which are associated with reduced VLA-4/VCAM-1 and LFA-1/ICAM-1 interactions.
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Affiliation(s)
- Liel Hamdi
- Department of Physical Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Hanan Nabat
- Department of Physical Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Yehuda Goldberg
- Department of Physical Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Nina Fainstein
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah - Hebrew University Medical Center, Jerusalem, Israel
| | - Shir Segal
- Department of Physical Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Efrat Mediouni
- Department of Physical Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Yarden Asis
- Department of Physical Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Olga Touloumi
- B' Department of Neurology, AHEPA University Hospital of Thessaloniki, Greece
| | | | - Abram Katz
- Åstrand Laboratory, The Swedish School of Sport and Health Sciences, GIH, Stockholm, Sweden
| | - Tamir Ben-Hur
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah - Hebrew University Medical Center, Jerusalem, Israel
| | - Ofira Einstein
- Department of Physical Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel
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4
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Einstein O, Katz A, Ben-Hur T. Physical exercise therapy for autoimmune neuroinflammation: Application of knowledge from animal models to patient care. Clin Exp Rheumatol 2022; 21:103033. [PMID: 34995760 DOI: 10.1016/j.autrev.2022.103033] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/02/2022] [Indexed: 12/12/2022]
Abstract
Physical exercise (PE) impacts various autoimmune diseases. Accordingly, clinical trials demonstrated the safety of PE in multiple sclerosis (MS) patients and indicated beneficial outcomes. There is also an increasing body of research on the beneficial effects of exercise on experimental autoimmune encephalomyelitis (EAE), the animal model of MS, and various mechanisms underlying these effects were suggested. However, despite the documented favorable impact of PE on our health, we still lack a thorough understanding of its effects on autoimmune neuroinflammation and specific guidelines of PE therapy for MS patients are lacking. To that end, current findings on the impact of PE on autoimmune neuroinflammation, both in human MS and animal models are reviewed. The concept of personalized PE therapy for autoimmune neuroinflammation is discussed, and future research for providing biological rationale for clinical trials to pave the road for precise PE therapy in MS patients is described.
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Affiliation(s)
- Ofira Einstein
- Department of Physical Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel.
| | - Abram Katz
- Åstrand Laboratory, The Swedish School of Sport and Health Sciences, GIH, Stockholm, Sweden
| | - Tamir Ben-Hur
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah - Hebrew University Medical Center, Jerusalem, Israel
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5
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de Toledo JHDS, Fraga-Silva TFDC, Borim PA, de Oliveira LRC, Oliveira EDS, Périco LL, Hiruma-Lima CA, de Souza AAL, de Oliveira CAF, Padilha PDM, Pinatto-Botelho MF, dos Santos AA, Sartori A, Zorzella-Pezavento SFG. Organic Selenium Reaches the Central Nervous System and Downmodulates Local Inflammation: A Complementary Therapy for Multiple Sclerosis? Front Immunol 2020; 11:571844. [PMID: 33193354 PMCID: PMC7664308 DOI: 10.3389/fimmu.2020.571844] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 10/08/2020] [Indexed: 01/18/2023] Open
Abstract
Multiple sclerosis (MS) is an inflammatory and demyelinating disease of the central nervous system (CNS). The persistent inflammation is being mainly attributed to local oxidative stress and inflammasome activation implicated in the ensuing demyelination and axonal damage. Since new control measures remain necessary, we evaluated the preventive and therapeutic potential of a beta-selenium-lactic acid derivative (LAD-βSe), which is a source of organic selenium under development, to control experimental autoimmune encephalomyelitis (EAE) that is an animal model for MS. Two EAE murine models: C57BL/6 and SJL/J immunized with myelin oligodendrocyte glycoprotein and proteolipid protein, respectively, and a model of neurodegeneration induced by LPS in male C57BL/6 mice were used. The preventive potential of LAD-βSe was initially tested in C57BL/6 mice, the chronic MS model, by three different protocols that were started 14 days before or 1 or 7 days after EAE induction and were extended until the acute disease phase. These three procedures were denominated preventive therapy -14 days, 1 day, and 7 days, respectively. LAD-βSe administration significantly controlled clinical EAE development without triggering overt hepatic and renal dysfunction. In addition of a tolerogenic profile in dendritic cells from the mesenteric lymph nodes, LAD-βSe also downregulated cell amount, activation status of macrophages and microglia, NLRP3 (NOD-like receptors) inflammasome activation and other pro-inflammatory parameters in the CNS. The high Se levels found in the CNS suggested that the product crossed the blood-brain barrier having a possible local effect. The hypothesis that LAD-βSe was acting locally was then confirmed by using the LPS-induced neurodegeneration model that also displayed Se accumulation and downmodulation of pro-inflammatory parameters in the CNS. Remarkably, therapy with LAD-βSe soon after the first remitting episode in SJL/J mice, also significantly downmodulated local inflammation and clinical disease severity. This study indicates that LAD-βSe, and possibly other derivatives containing Se, are able to reach the CNS and have the potential to be used as preventive and therapeutic measures in distinct clinical forms of MS.
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Affiliation(s)
| | | | - Patrícia Aparecida Borim
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | | | - Evelyn da Silva Oliveira
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - Larissa Lucena Périco
- Department of Structural and Functional Biology, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil
| | - Clélia Akiko Hiruma-Lima
- Department of Structural and Functional Biology, São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil
| | - Adriana Aparecida Lopes de Souza
- Veterinary Clinical Laboratory, School of Veterinary Medicine and Animal Science (FMVZ), São Paulo State University (UNESP), Botucatu, Brazil
| | | | - Pedro de Magalhães Padilha
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - Marcos Felipe Pinatto-Botelho
- LabSSeTe Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo (USP), São Paulo, Brazil
| | - Alcindo Aparecido dos Santos
- LabSSeTe Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo (USP), São Paulo, Brazil
| | - Alexandrina Sartori
- Department of Chemical and Biological Sciences, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
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6
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Prosperini L, Di Filippo M. Beyond clinical changes: Rehabilitation-induced neuroplasticity in MS. Mult Scler 2020; 25:1348-1362. [PMID: 31469359 DOI: 10.1177/1352458519846096] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Neural plasticity represents the substrate by which the damaged central nervous system (CNS) re-learns lost behaviors in response to rehabilitation. In persons with multiple sclerosis (MS), rehabilitation can therefore exploit the potential of neural plasticity to restore CNS functions beyond the spontaneous mechanisms of recovery from MS-related damage. METHODS Here, we reviewed the currently available evidence on the occurrence of mechanisms of structural and functional plasticity following rehabilitation, motor, and/or cognitive training. We presented both data gained from basic laboratory research on animal models and data on persons with MS obtained by advanced magnetic resonance imaging (MRI) techniques. RESULTS Studies on physical and environmental enrichment in experimental MS models showed beneficial effects mediated by both immune modulation and activity-dependent plasticity, lowering tissue destruction and restoring of CNS network function. Translational researches in MS people demonstrated structural and/or functional MRI changes after various interventions, but their heterogeneity and small sample sizes (5-42 patients) raise concerns about the interpretation and generalization of the obtained results. DISCUSSION We highlighted the limitations of published studies, focusing on the knowledge gaps to be filled in terms of neuropathological correlations between changes detected in animal models and changes detected in vivo by neuroimaging.
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Affiliation(s)
- Luca Prosperini
- Department of Neurosciences, San Camillo-Forlanini Hospital, Rome, Italy
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7
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Swimming Exercise Ameliorates Symptoms of MOG-Induced Experimental Autoimmune Encephalomyelitis by Inhibiting Inflammation and Demyelination in Rats. Int Neurourol J 2020; 24:S39-47. [PMID: 32482056 PMCID: PMC7285701 DOI: 10.5213/inj.2040156.078] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 05/05/2020] [Indexed: 01/03/2023] Open
Abstract
Purpose Multiple sclerosis is an autoimmune disease that affects the central nerve system, resulting in cumulative loss of motor function. Multiple sclerosis is induced through multiple mechanisms and is caused by inflammation and demyelination. This study aims to evaluate the neuroprotective effect of swimming exercise in experimental autoimmune encephalomyelitis (EAE) rats, an animal model of multiple sclerosis. Methods EAE was induced by an intradermal injection of 50-μg purified myelin oligodendrocyte glycoprotein 33–55 (MOG33-55) dissolved in 200-μL saline at the base of the tail. The rats in the swimming exercise group were made to swim for 30 minutes once pert a day for 26 consecutive days, starting 5 days after induction of EAE. To compare the effect of swimming exercise with interferon-β, a drug for multiple sclerosis, interferon-β was injected intraperitoneally into rats of the EAE-induced and interferon-β-treated group during the exercise period. Results Injection of MOG33-55 caused weight loss, decreased clinical disability score, and increased level of pro-inflammatory cytokines and inflammatory mediators in the lumbar spinal cord. Loss of motor function and weakness increased demyelination score. Swimming exercise suppressed demyelination and expression of pro-inflammatory cytokines and inflammatory mediators. These changes promoted recovery of EAE symptoms such as body weight loss, motor dysfunction, and weakness. Swimming exercise caused the same level of improvement as interferon-β treatment. Conclusions The results of this experiment suggest the possibility of swimming exercise in urological diseases that are difficult to treat. Swimming exercises can be considered for relief of symptom in incurable multiple sclerosis.
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da Costa Daniele TM, de Bruin PFC, de Matos RS, de Bruin GS, Maia Chaves C, de Bruin VMS. Exercise effects on brain and behavior in healthy mice, Alzheimer's disease and Parkinson's disease model-A systematic review and meta-analysis. Behav Brain Res 2020; 383:112488. [PMID: 31991178 DOI: 10.1016/j.bbr.2020.112488] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 12/28/2019] [Accepted: 01/16/2020] [Indexed: 12/12/2022]
Abstract
This systematic review and meta-analysis examines how exercise modifies brain and behavior in healthy mice, dementia (D) and Parkinson disease (PD) models. A search was performed on the Medline and Scopus electronic databases (2008-2019). Search terms were "mice", "brain", "treadmill", "exercise", "physical exercise". In the total, 430 were found but only 103 were included. Animals n = 1,172; exercised 4-8 weeks (Range 24 h to 32 weeks), 60 min/day (Range 8-120 min per day), and 10/12 m/min (Range 0.2 m/min to 36 m/min). Hippocampus, cerebral cortex, striatum and whole brain were more frequently investigated. Exercise improved learning and memory. Meta-analysis showed that exercise increased: cerebral BDNF in health (n = 150; z = 5.8, CI 3.43-12.05; p < 0.001 I2 = 94.3 %), D (n = 124; z = 4.18, CI = 2.22-9.12; p < 0.001; I2 = 93.7 %) and PD (n = 16 z = 4.26, CI 5.03-48.73 p < 0.001 I2 = 94.8 %). TrkB improved in health (n = 84 z = 5.49, CI 3.8-17.73 p < 0.001, I2 = 0.000) and PD (n = 22; z = 3.1, CI = 2.58-67.3, p < 0.002 I2 = 93.8 %). Neurogenesis increased in health (n = 68; z = 7.08, CI 5.65-21.25 p < 0.001; I2 17.58) and D model (n = 116; z = 4.18, CI 2.22-9.12 p < 0.001 I2 93.7 %). Exercise augmented amyloid clearance (n = 166; z = 7.51 CI = 4.86-14.85, p < 0.001 I2 = 58.72) and reduced amyloid plaques in D models (n = 49; z = 4.65, CI = 3.94-15.3 p < 0.001 I2 = 0.000). In conclusion, exercise improved brain and behavior, neurogenesis in healthy and dementia models, reduced toxicity and cerebral amyloid. Evidence regarding inflammation, oxidative stress and energy metabolism were scarce. Studies examining acute vs chronic exercise, extreme training and the durability of exercise benefit were rare. Vascular or glucose metabolism changes were seldom reported.
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Affiliation(s)
- Thiago Medeiros da Costa Daniele
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Ceará, Fortaleza, Brazil; Sleep and Biological Rhythms Laboratory, UFC, Brazil; Universidade Federal do Ceará (UFC), Brazil; Universidade de Fortaleza (UNIFOR).
| | - Pedro Felipe Carvalhedo de Bruin
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Ceará, Fortaleza, Brazil; Sleep and Biological Rhythms Laboratory, UFC, Brazil; Universidade Federal do Ceará (UFC), Brazil.
| | - Robson Salviano de Matos
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Ceará, Fortaleza, Brazil; Sleep and Biological Rhythms Laboratory, UFC, Brazil; Universidade Federal do Ceará (UFC), Brazil.
| | - Gabriela Sales de Bruin
- Universidade Federal do Ceará (UFC), Brazil; Department of Neurology, Washington University in St Louis, United States.
| | - Cauby Maia Chaves
- Universidade Federal do Ceará (UFC), Brazil; Departamento de Clínica Odontológica, UFC, Brazil.
| | - Veralice Meireles Sales de Bruin
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Ceará, Fortaleza, Brazil; Sleep and Biological Rhythms Laboratory, UFC, Brazil; Universidade Federal do Ceará (UFC), Brazil.
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9
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Gentile A, Musella A, De Vito F, Rizzo FR, Fresegna D, Bullitta S, Vanni V, Guadalupi L, Stampanoni Bassi M, Buttari F, Centonze D, Mandolesi G. Immunomodulatory Effects of Exercise in Experimental Multiple Sclerosis. Front Immunol 2019; 10:2197. [PMID: 31572399 PMCID: PMC6753861 DOI: 10.3389/fimmu.2019.02197] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 08/30/2019] [Indexed: 12/20/2022] Open
Abstract
Multiple Sclerosis (MS) is a demyelinating and neurodegenerative disease. Though a specific antigen has not been identified, it is widely accepted that MS is an autoimmune disorder characterized by myelin-directed immune attack. Pharmacological treatments for MS are based on immunomodulatory or immunosuppressant drugs, designed to attenuate or dampen the immune reaction, to improve neurological functions. Recently, rehabilitation has gained increasing attention in the scientific community dealing with MS. Engagement of people with MS in exercise programs has been associated with a number of functional improvements in mobility, balance, and motor coordination. Moreover, several studies indicate the effectiveness of exercise against fatigue and mood disorders that are frequently associated with the disease. However, whether exercise acts like an immunomodulatory therapy is still an unresolved question. A good tool to address this issue is provided by the study of the immunomodulatory effects of exercise in an animal model of MS, including the experimental autoimmune encephalomyelitis (EAE), the Theiler's virus induced-demyelinating disease (TMEV-IDD) and toxic-demyelinating models, cuprizone (CPZ), and lysolecithin (LPC). So far, despite the availability of different animal models, most of the pre-clinical data have been gained in EAE and to a lesser extent in CPZ and LPC. These studies have highlighted beneficial effects of exercise, suggesting the modulation of both the innate and the adaptive immune response in the peripheral blood as well as in the brain. In the present paper, starting from the biological differences among MS animal models in terms of immune system involvement, we revise the literature regarding the effects of exercise in EAE, CPZ, and LPC, and critically highlight the advantages of either model, including the so-far unexplored TMEV-IDD, to address the immune effects of exercise in MS.
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Affiliation(s)
- Antonietta Gentile
- Synaptic Immunopathology Lab, Department of Systems Medicine, Tor Vergata University, Rome, Italy.,Synaptic Immunopathology Lab, IRCCS San Raffaele Pisana, Rome, Italy
| | - Alessandra Musella
- Synaptic Immunopathology Lab, IRCCS San Raffaele Pisana, Rome, Italy.,San Raffaele University, Rome, Italy
| | | | - Francesca Romana Rizzo
- Synaptic Immunopathology Lab, Department of Systems Medicine, Tor Vergata University, Rome, Italy
| | - Diego Fresegna
- Synaptic Immunopathology Lab, IRCCS San Raffaele Pisana, Rome, Italy
| | - Silvia Bullitta
- Synaptic Immunopathology Lab, Department of Systems Medicine, Tor Vergata University, Rome, Italy.,Synaptic Immunopathology Lab, IRCCS San Raffaele Pisana, Rome, Italy
| | - Valentina Vanni
- Synaptic Immunopathology Lab, IRCCS San Raffaele Pisana, Rome, Italy
| | - Livia Guadalupi
- Synaptic Immunopathology Lab, Department of Systems Medicine, Tor Vergata University, Rome, Italy.,Synaptic Immunopathology Lab, IRCCS San Raffaele Pisana, Rome, Italy
| | | | | | - Diego Centonze
- Synaptic Immunopathology Lab, Department of Systems Medicine, Tor Vergata University, Rome, Italy.,Unit of Neurology, IRCCS Neuromed, Pozzilli, Italy
| | - Georgia Mandolesi
- Synaptic Immunopathology Lab, IRCCS San Raffaele Pisana, Rome, Italy.,San Raffaele University, Rome, Italy
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10
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Guo LY, Lozinski B, Yong VW. Exercise in multiple sclerosis and its models: Focus on the central nervous system outcomes. J Neurosci Res 2019; 98:509-523. [DOI: 10.1002/jnr.24524] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/17/2019] [Accepted: 08/21/2019] [Indexed: 12/30/2022]
Affiliation(s)
- Ling Yi Guo
- Department of Physiology and Pharmacology Western University London Ontario Canada
- Hotchkiss Brain InstituteUniversity of Calgary Calgary Alberta Canada
- Department of Clinical Neurosciences University of Calgary Calgary Alberta Canada
| | - Brian Lozinski
- Hotchkiss Brain InstituteUniversity of Calgary Calgary Alberta Canada
- Department of Clinical Neurosciences University of Calgary Calgary Alberta Canada
| | - Voon Wee Yong
- Hotchkiss Brain InstituteUniversity of Calgary Calgary Alberta Canada
- Department of Clinical Neurosciences University of Calgary Calgary Alberta Canada
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11
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Fainstein N, Tyk R, Touloumi O, Lagoudaki R, Goldberg Y, Agranyoni O, Navon-Venezia S, Katz A, Grigoriadis N, Ben-Hur T, Einstein O. Exercise intensity-dependent immunomodulatory effects on encephalomyelitis. Ann Clin Transl Neurol 2019; 6:1647-1658. [PMID: 31368247 PMCID: PMC6764499 DOI: 10.1002/acn3.50859] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 06/20/2019] [Accepted: 07/06/2019] [Indexed: 12/17/2022] Open
Abstract
Background Exercise training (ET) has beneficial effects on multiple sclerosis and its animal model experimental autoimmune encephalomyelitis (EAE). However, the intensity‐dependent effects of ET on the systemic immune system in EAE remain undefined. Objective (1) To compare the systemic immune modulatory effects of moderate versus high‐intensity ET protocols in protecting against development of EAE; (2) To investigate whether ET affects autoimmunity selectively, or causes general immunosuppression. Methods Healthy mice performed moderate or high‐intensity treadmill running programs. Proteolipid protein (PLP)‐induced transfer EAE was utilized to examine ET effects specifically on the systemic immune system. Lymph node (LN)‐T cells from trained versus sedentary donor mice were transferred to naïve recipients and EAE severity was assessed, by clinical assessment and histopathological analysis. LN‐T cells derived from donor trained versus sedentary PLP‐immunized mice were analyzed in vitro for proliferation assays by flow cytometry analysis and cytokine and chemokine receptor gene expression using real‐time PCR. T cell‐dependent immune responses of trained versus sedentary mice to the nonautoantigen ovalbumin and susceptibility to Escherichia coli‐induced acute peritonitis were examined. Results High‐intensity training in healthy donor mice induced significantly greater inhibition than moderate‐intensity training on proliferation and generation of encephalitogenic T cells in response to PLP‐immunization, and on EAE severity upon their transfer into recipient mice. High‐intensity training also inhibited LN‐T cell proliferation in response to ovalbumin immunization. E. coli bacterial counts and dissemination were not affected by training. Interpretation High‐intensity training induces superior effects in preventing autoimmunity in EAE, but does not alter immune responses to E. coli infection.
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Affiliation(s)
- Nina Fainstein
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah - Hebrew University Medical Center, Jerusalem, Israel
| | - Reuven Tyk
- Department of Physical Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Olga Touloumi
- B' Department of Neurology, AHEPA University Hospital of Thessaloniki, Thessaloniki, Greece
| | - Roza Lagoudaki
- B' Department of Neurology, AHEPA University Hospital of Thessaloniki, Thessaloniki, Greece
| | - Yehuda Goldberg
- Department of Physical Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel
| | - Oryan Agranyoni
- Department of Molecular Biology, Faculty of Natural Sciences, Ariel University, Ariel, Israel
| | - Shiri Navon-Venezia
- Department of Molecular Biology, Faculty of Natural Sciences, Ariel University, Ariel, Israel
| | - Abram Katz
- Åstrand Laboratory of Work Physiology, The Swedish School of Sport and Health Sciences, GIH, Stockholm, Sweden
| | - Nikolaos Grigoriadis
- B' Department of Neurology, AHEPA University Hospital of Thessaloniki, Thessaloniki, Greece
| | - Tamir Ben-Hur
- Department of Neurology, The Agnes Ginges Center for Human Neurogenetics, Hadassah - Hebrew University Medical Center, Jerusalem, Israel
| | - Ofira Einstein
- Department of Physical Therapy, Faculty of Health Sciences, Ariel University, Ariel, Israel
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12
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Voluntary wheel running reveals sex-specific nociceptive factors in murine experimental autoimmune encephalomyelitis. Pain 2019; 160:870-881. [PMID: 30540622 DOI: 10.1097/j.pain.0000000000001465] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Multiple sclerosis (MS) is an inflammatory, neurodegenerative autoimmune disease associated with sensory and motor dysfunction. Although estimates vary, ∼50% of patients with MS experience pain during their disease. The mechanisms underlying the development of pain are not fully understood, and no effective treatment for MS-related pain is available. Previous work from our laboratory demonstrated that voluntary exercise (wheel running) can reduce nociceptive behaviours at the disease onset in female mice with experimental autoimmune encephalomyelitis (EAE), an animal model used to study the immunopathogenesis of MS. However, given the established sex differences in the underlying mechanisms of chronic pain and MS, we wanted to investigate whether wheel running would also be effective at preventing nociceptive behaviours in male mice with EAE. C57BL/6 mice of both sexes were given access to running wheels for 1 hour/day until the disease onset, when nociceptive behaviour was assessed using von Frey hairs. Daily running effectively reduced nociceptive behaviour in female mice, but not in male mice. We explored the potential biological mechanisms for these effects and found that the reduction in nociceptive behaviour in female mice was associated with reduced levels of inflammatory cytokines from myelin-reactive T cells as well as reduced dorsal root ganglia excitability as seen by decreased calcium responses. These changes were not seen in male mice. Instead, running increased the levels of inflammatory cytokines and potentiated Ca responses in dorsal root ganglia cells. Our results show that voluntary wheel running has sex-dependent effects on nociceptive behaviour and inflammatory responses in male and female mice with EAE.
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13
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Jakimovski D, Guan Y, Ramanathan M, Weinstock-Guttman B, Zivadinov R. Lifestyle-based modifiable risk factors in multiple sclerosis: review of experimental and clinical findings. Neurodegener Dis Manag 2019; 9:149-172. [PMID: 31116081 DOI: 10.2217/nmt-2018-0046] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Multiple sclerosis (MS) is a lifelong inflammatory and neurodegenerative disease influenced by multiple lifestyle-based factors. We provide a narrative review of the effects of modifiable risk factors that are identified as being associated with risk to develop MS and/or influencing the future clinical disease outcomes. The emerging data regarding the beneficial effects of diet modifications and exercise are further reviewed. In contrast, obesity and comorbid cardiovascular diseases are associated with increased MS susceptibility and worse disease progression. In addition, the potential influence of smoking, coffee and alcohol consumption on MS onset and disability development are discussed. Successful management of the modifiable risk factors may lead to better long-term outcomes and improve patients' quality of life. MS specialists should participate in educating and facilitating lifestyle-based modifications as part of their neurological consults.
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Affiliation(s)
- Dejan Jakimovski
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine & Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, USA
| | - Yi Guan
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine & Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, USA
| | - Murali Ramanathan
- Department of Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA
| | - Bianca Weinstock-Guttman
- Jacobs MS Center, Department of Neurology, Jacobs School of Medicine & Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, USA
| | - Robert Zivadinov
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine & Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14203, USA.,Center for Biomedical Imaging at Clinical Translational Science Institute, University at Buffalo, State University of New York, Buffalo, NY 14203, USA
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14
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Baquet L, Hasselmann H, Patra S, Stellmann JP, Vettorazzi E, Engel AK, Rosenkranz SC, Poettgen J, Gold SM, Schulz KH, Heesen C. Short-term interval aerobic exercise training does not improve memory functioning in relapsing-remitting multiple sclerosis-a randomized controlled trial. PeerJ 2018; 6:e6037. [PMID: 30581662 PMCID: PMC6295157 DOI: 10.7717/peerj.6037] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 10/30/2018] [Indexed: 01/09/2023] Open
Abstract
Background Only few aerobic exercise intervention trials specifically targeting cognitive functioning have been performed in multiple sclerosis. Objective and Methods This randomized controlled trial with 34 patients in the intervention group (IG) (mean: 38.2 years (±9.6)) and 34 patients in the control group (CG) (mean: 39.6 years (±9.7)) aimed to determine the effects of aerobic exercise on cognition in relapsing-remitting multiple sclerosis (RRMS). The primary outcome was verbal learning assessed by the verbal learning and memory test (VLMT). Patients were randomized to an IG or a waitlist CG. Patients in the IG exercised according to an individually tailored training schedule (with two to three sessions per week for 12 weeks). The primary analysis was carried out using the intention-to-treat (ITT) sample with ANCOVA adjusting for baseline scores. Results A total of 77 patients with RRMS were screened and 68 participants randomized (CG n = 34; IG n = 34). The sample comprised 68% females, had a mean age of 39 years, a mean disease duration of 6.3 years, and a mean expanded disability status scale of 1.8. No significant effects were detected in the ITT analysis for the primary endpoint VLMT or any other cognitive measures. Moreover, no significant treatment effects were observed for quality of life, fatigue, or depressive symptoms. Conclusion This study failed to demonstrate beneficial effects of aerobic exercise on cognition in RRMS. The trial was prospectively registered at clinicaltrials.gov (NCT02005237).
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Affiliation(s)
- Lisa Baquet
- Institute for Neuroimmunology and Multiple Sclerosis (INIMS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Helge Hasselmann
- Department for Psychiatry and Psychotherapy, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Stefan Patra
- Universitäres Kompetenzzentrum für Sport- und Bewegungsmedizin (Athleticum) und Institut und Poliklinik für Medizinische Psychologie, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jan-Patrick Stellmann
- Institute for Neuroimmunology and Multiple Sclerosis (INIMS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eik Vettorazzi
- Institute of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andreas K Engel
- Department of Neurophysiology and Pathophysiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sina Cathérine Rosenkranz
- Institute for Neuroimmunology and Multiple Sclerosis (INIMS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jana Poettgen
- Institute for Neuroimmunology and Multiple Sclerosis (INIMS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan Michael Gold
- Institute for Neuroimmunology and Multiple Sclerosis (INIMS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department for Psychiatry and Psychotherapy, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Karl-Heinz Schulz
- Universitäres Kompetenzzentrum für Sport- und Bewegungsmedizin (Athleticum) und Institut und Poliklinik für Medizinische Psychologie, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christoph Heesen
- Institute for Neuroimmunology and Multiple Sclerosis (INIMS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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15
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Bernardes D, de Oliveira ALR. Regular Exercise Modifies Histopathological Outcomes of Pharmacological Treatment in Experimental Autoimmune Encephalomyelitis. Front Neurol 2018; 9:950. [PMID: 30524355 PMCID: PMC6256135 DOI: 10.3389/fneur.2018.00950] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/24/2018] [Indexed: 01/09/2023] Open
Abstract
Background: Although it has been suggested that healthier lifestyle may optimize effects of the immunomodulation drugs for treating multiple sclerosis (MS), the knowledge regarding this kind of interactions is limited. Objective: The aim of the present study was to investigate the effects of treadmill exercise in combination with pharmacological treatment in an animal model for MS. Methods: C57BL/6J female mice were subjected to daily treadmill exercise for 4 weeks before immunization and 6 weeks before clinical presentation of disease. Dimethyl fumarate (DMF) or glatiramer acetate (GA) were administered after the first clinical relapse. Histopathological analyses were carried out in the lumbar spinal cord at peak disease and at 1 or 14 days post-treatment (dpt). Results: Exercised-GA treated animals demonstrated decreased astrocytic response in the spinal dorsal horn with an improvement in the paw print pressure. Exercised-DMF treated animals showed an increased microglial/macrophage response on both ventral and dorsal horn that were associated with clinical improvement and synaptic motoneuron inputs density. Conclusion: The present data suggest that prior regular exercise can modify the effects of pharmacological treatment administered after the first relapse in a murine model for MS.
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Affiliation(s)
- Danielle Bernardes
- Laboratory of Nerve Regeneration, Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas, Brazil
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16
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Exercise training attenuates experimental autoimmune encephalomyelitis by peripheral immunomodulation rather than direct neuroprotection. Exp Neurol 2018; 299:56-64. [DOI: 10.1016/j.expneurol.2017.10.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/21/2017] [Accepted: 10/10/2017] [Indexed: 12/17/2022]
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17
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Devasahayam AJ, Downer MB, Ploughman M. The Effects of Aerobic Exercise on the Recovery of Walking Ability and Neuroplasticity in People with Multiple Sclerosis: A Systematic Review of Animal and Clinical Studies. Mult Scler Int 2017; 2017:4815958. [PMID: 29181199 PMCID: PMC5664281 DOI: 10.1155/2017/4815958] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 07/19/2017] [Accepted: 08/21/2017] [Indexed: 01/04/2023] Open
Abstract
INTRODUCTION Walking is of high priority for people with multiple sclerosis (PwMS). It remains unclear whether aerobic exercise can improve walking ability and upregulate neurotrophins. This review aims to consolidate evidence to develop optimal aerobic training parameters to enhance walking outcomes and neuroplasticity in PwMS. METHODS Clinical studies examining aerobic exercise for ≥3 weeks, having outcomes on walking with or without neurotrophic markers, were included. Studies utilizing animal models of MS were included if they employed aerobic exercise with outcomes on neurological recovery and neurotrophins. From a total of 1783 articles, 12 clinical and 5 animal studies were included. RESULTS Eleven clinical studies reported improvements in walking ability. Only two clinical studies evaluated both walking and neurotrophins, and neither found an increase in neurotrophins despite improvements in walking. Patients with significant walking impairments were underrepresented. Long-term follow-up revealed mixed results. Two animal studies reported a positive change in both neurological recovery and neurotrophins. CONCLUSION Aerobic exercise improves walking ability in PwMS. Gains are not consistently maintained at 2- to 9-month follow-up. Studies examining levels of neurotrophins are inconclusive, necessitating further research. Aerobic exercise enhances both neurological recovery and neurotrophins in animal studies when started 2 weeks before induction of MS.
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Affiliation(s)
- Augustine Joshua Devasahayam
- The Recovery and Performance Laboratory, Faculty of Medicine, Memorial University of Newfoundland, Room 400, L.A. Miller Centre, 100 Forest Road, St. John's, NL, Canada A1A 1E5
| | - Matthew Bruce Downer
- The Recovery and Performance Laboratory, Faculty of Medicine, Memorial University of Newfoundland, Room 400, L.A. Miller Centre, 100 Forest Road, St. John's, NL, Canada A1A 1E5
| | - Michelle Ploughman
- The Recovery and Performance Laboratory, Faculty of Medicine, Memorial University of Newfoundland, Room 400, L.A. Miller Centre, 100 Forest Road, St. John's, NL, Canada A1A 1E5
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18
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Blackmore S, Hernandez J, Juda M, Ryder E, Freund GG, Johnson RW, Steelman AJ. Influenza infection triggers disease in a genetic model of experimental autoimmune encephalomyelitis. Proc Natl Acad Sci U S A 2017; 114:E6107-E6116. [PMID: 28696309 PMCID: PMC5544260 DOI: 10.1073/pnas.1620415114] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Multiple sclerosis (MS) is an autoimmune disease of the central nervous system. Most MS patients experience periods of symptom exacerbation (relapses) followed by periods of partial recovery (remission). Interestingly, upper-respiratory viral infections increase the risk for relapse. Here, we used an autoimmune-prone T-cell receptor transgenic mouse (2D2) and a mouse-adapted human influenza virus to test the hypothesis that upper-respiratory viral infection can cause glial activation, promote immune cell trafficking to the CNS, and trigger disease. Specifically, we inoculated 2D2 mice with influenza A virus (Puerto Rico/8/34; PR8) and then monitored them for symptoms of inflammatory demyelination. Clinical and histological experimental autoimmune encephalomyelitis was observed in ∼29% of infected 2D2 mice. To further understand how peripheral infection could contribute to disease onset, we inoculated wild-type C57BL/6 mice and measured transcriptomic alterations occurring in the cerebellum and spinal cord and monitored immune cell surveillance of the CNS by flow cytometry. Infection caused temporal alterations in the transcriptome of both the cerebellum and spinal cord that was consistent with glial activation and increased T-cell, monocyte, and neutrophil trafficking to the brain at day 8 post infection. Finally, Cxcl5 expression was up-regulated in the brains of influenza-infected mice and was elevated in cerebrospinal fluid of MS patients during relapse compared with specimens acquired during remission. Collectively, these data identify a mechanism by which peripheral infection may exacerbate MS as well as other neurological diseases.
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Affiliation(s)
- Stephen Blackmore
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801
| | - Jessica Hernandez
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801
| | - Michal Juda
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801
| | - Emily Ryder
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL 61801
| | - Gregory G Freund
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801
- Department of Pathology, University of Illinois Urbana-Champaign, Urbana, IL 61801
| | - Rodney W Johnson
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL 61801
- Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801
| | - Andrew J Steelman
- Department of Animal Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801;
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL 61801
- Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801
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19
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Mifflin KA, Frieser E, Benson C, Baker G, Kerr BJ. Voluntary wheel running differentially affects disease outcomes in male and female mice with experimental autoimmune encephalomyelitis. J Neuroimmunol 2017; 305:135-144. [DOI: 10.1016/j.jneuroim.2017.02.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 01/16/2017] [Accepted: 02/06/2017] [Indexed: 01/08/2023]
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