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Streckmann F, Elter T, Lehmann HC, Baurecht H, Nazarenus T, Oschwald V, Koliamitra C, Otten S, Draube A, Heinen P, Steinmetz T, Hallek M, Leitzmann M, Bloch W, Balke M. Preventive Effect of Neuromuscular Training on Chemotherapy-Induced Neuropathy: A Randomized Clinical Trial. JAMA Intern Med 2024:2820720. [PMID: 38949824 PMCID: PMC11217888 DOI: 10.1001/jamainternmed.2024.2354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 03/04/2024] [Indexed: 07/02/2024]
Abstract
Importance Chemotherapy-induced peripheral neuropathy (CIPN) is a highly prevalent and clinically relevant adverse effect of chemotherapy, negatively impacting patient quality of life. The lack of effective preventive or therapeutic options regarding CIPN often requires changes in cancer therapy, potentially resulting in reduced survival. Objective To determine whether sensorimotor training (SMT) and whole-body vibration (WBV) training reduce symptoms and decrease the onset of CIPN. Design, Setting, and Participants This prospective multicenter randomized clinical trial (STOP) followed up patients over 5 years at 4 centers in or near Cologne, Germany. Patients undergoing treatment with oxaliplatin or vinca alkaloids were recruited. Participants were recruited from May 2014 to November 2020. Data were last analyzed in June 2021. Interventions Participants in the intervention groups performed supervised SMT or WBV training sessions twice a week, each lasting approximately 15 to 30 minutes, concomitant to medical therapy. Main Outcomes and Measures The primary end point was the incidence of CIPN. Secondary end points included subjective neuropathy symptoms, balance control, physical activity levels, quality of life, and clinical outcome. For cross-stratum evaluations, the Mantel-Haenszel test (MH) was used, and within individual strata, Fisher exact test was used for analysis. Results A total of 1605 patients were screened, and 1196 patients did not meet all inclusion criteria, with 251 further excluded or declining participation. A total of 158 patients (mean [SD] age, 49.1 [18.0-82.0] years; 93 [58.9%] male) were randomized into 1 of 3 groups: 55 (34.8%) in SMT, 53 (33.5%) in WBV, and 50 (31.6%) in treatment as usual (TAU). The incidence of CIPN in participants was significantly lower in both intervention groups compared to the control group (TAU): (SMT, 12 of 40 [30.0%; 95% CI, 17.9%-42.1%] and WBV, 14 of 34 [41.2%; 95% CI, 27.9%-54.5%] vs TAU, 24 of 34 [70.6%; 95% CI, 58.0%-83.2%]; P = .002 for intention to treat-MH). Patients receiving vinca alkaloids and performing SMT benefited the most. Results were more pronounced in a per-protocol analysis (>75% participation in the intervention) (SMT, 8 of 28 [28.6%; 95% CI, 16.6%-40.5%] and WBV, 9 of 24 [37.5%; 95% CI, 24.4%-50.5%] vs TAU, 22 of 30 [73.3%; 95% CI, 61.6%-85.6%]). Improvements in favor of SMT compared to TAU were found for balance control bipedal with eyes open; bipedal with eyes closed; monopedal, vibration sensitivity, sense of touch, lower leg strength, pain reduction, burning sensation, chemotherapy dose reductions, and mortality. Conclusion and Relevance This randomized clinical trial provides initial evidence that neuromuscular training decreases the onset of CIPN. Trial Registration German Clinical Trials Register: DRKS00006088.
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Affiliation(s)
- Fiona Streckmann
- Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
- Department of Oncology, University Hospital Basel, Basel, Switzerland
- Institute of Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Thomas Elter
- Department 1 of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, University Hospital Cologne, Cologne, Germany
| | - Helmar C. Lehmann
- Department of Neurology, University Hospital Cologne, Cologne, Germany
| | - Hansjörg Baurecht
- Department of Epidemiology and Preventive Medicine, University of Regensburg, Regensburg, Germany
| | - Tatjana Nazarenus
- Department of Epidemiology and Preventive Medicine, University of Regensburg, Regensburg, Germany
| | - Vanessa Oschwald
- Institute of Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Christina Koliamitra
- Institute of Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Sarah Otten
- Institute of Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Andreas Draube
- Praxis Internistischer Onkologie und Haematologie (PIOH), Cologne, Germany
| | - Petra Heinen
- Department of Oncology, Saint Antonius Hospital, Eschweiler, Germany
| | | | - Michael Hallek
- Department 1 of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, University Hospital Cologne, Cologne, Germany
| | - Michael Leitzmann
- Department of Epidemiology and Preventive Medicine, University of Regensburg, Regensburg, Germany
| | - Wilhelm Bloch
- Institute of Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Maryam Balke
- Department of Neurological and Early Rehabilitation, Saint Mary Hospital Cologne, Cologne, Germany
- Department of Rehabilitation Sciences, Faculty of Health, University of Witten/Herdecke, Witten, Germany
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Reyhanıoglu DA, Yıldırım G, Sengun IŞ, Kara B. Effects of Computer-based Balance Exercises on Balance, Pain, Clinical Presentation and Nerve Function in Patients With Diabetic Peripheral Neuropathy: A Randomized Controlled Study. JOURNAL OF MUSCULOSKELETAL & NEURONAL INTERACTIONS 2024; 24:168-177. [PMID: 38825999 PMCID: PMC11145324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Accepted: 12/15/2023] [Indexed: 06/04/2024]
Abstract
OBJECTIVE To evaluate the use of a computer-based biodex balance exercise system (BBS) on balance, neuropathic pain, clinical presentation and nerve function in patients with diabetic peripheral neuropathy (DPN). METHODS A total of 32 participants with DPN were randomly assigned in a 1:1 ratio to an intervention group (IG) or control group (CG). The IG performed exercises using the BBS twice weekly for 8 weeks, while CG were informed regarding diabetes self-management. At baseline and after study completion, participants underwent balance (postural stability and fall risk) and neuropathic pain assessment (DN4 questionnaire) and were screened using the Michigan Neuropathy Screening Instrument and nerve conduction test. RESULTS Among the baseline participants, 14 in the IG and 13 in the CG completed the study. Balance training improved postural stability (overall, p<0.001), fall risk (p<0.001), neuropathic pain (p=0.01) and symptoms (p<0.001), and clinical presentation (p=0.02), but not nerve function, within the IG. At follow-up, IG displayed significantly improved stability (p<0.001) and fall risk (p=0.02) and decreased neuropathic symptoms (p=0.01) compared to the CG. CONCLUSION Computer-based balance exercises improve balance, pain, and clinical presentation of DPN, but not nerve function, in patients with DPN. CLINICALTRIALS gov ID: NCT05255497.
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Affiliation(s)
- Duygu Aktar Reyhanıoglu
- Physiotherapy and Rehabilitation, Faculty of Health Sciences, Fenerbahce University, Istanbul, Turkey
| | - Gaye Yıldırım
- Department of Neurophysiology, Ordu Public Hospital, Ordu, Turkey
| | - Ihsan Şükrü Sengun
- Department of Neurology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Bilge Kara
- Department of Physical Therapy and Rehabilitation, Dokuz Eylul University, Izmir, Turkey
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Gordon T. Brief Electrical Stimulation Promotes Recovery after Surgical Repair of Injured Peripheral Nerves. Int J Mol Sci 2024; 25:665. [PMID: 38203836 PMCID: PMC10779324 DOI: 10.3390/ijms25010665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 01/12/2024] Open
Abstract
Injured peripheral nerves regenerate their axons in contrast to those in the central nervous system. Yet, functional recovery after surgical repair is often disappointing. The basis for poor recovery is progressive deterioration with time and distance of the growth capacity of the neurons that lose their contact with targets (chronic axotomy) and the growth support of the chronically denervated Schwann cells (SC) in the distal nerve stumps. Nonetheless, chronically denervated atrophic muscle retains the capacity for reinnervation. Declining electrical activity of motoneurons accompanies the progressive fall in axotomized neuronal and denervated SC expression of regeneration-associated-genes and declining regenerative success. Reduced motoneuronal activity is due to the withdrawal of synaptic contacts from the soma. Exogenous neurotrophic factors that promote nerve regeneration can replace the endogenous factors whose expression declines with time. But the profuse axonal outgrowth they provoke and the difficulties in their delivery hinder their efficacy. Brief (1 h) low-frequency (20 Hz) electrical stimulation (ES) proximal to the injury site promotes the expression of endogenous growth factors and, in turn, dramatically accelerates axon outgrowth and target reinnervation. The latter ES effect has been demonstrated in both rats and humans. A conditioning ES of intact nerve days prior to nerve injury increases axonal outgrowth and regeneration rate. Thereby, this form of ES is amenable for nerve transfer surgeries and end-to-side neurorrhaphies. However, additional surgery for applying the required electrodes may be a hurdle. ES is applicable in all surgeries with excellent outcomes.
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Affiliation(s)
- Tessa Gordon
- Division of Reconstructive Surgery, Department of Surgery, University of Toronto, Toronto, ON M4G 1X8, Canada
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Cho YH, Seo TB. The role of walking exercise on axonal regrowth and neuropathic pain markers in dorsal root ganglion after sciatic nerve injury. J Exerc Rehabil 2023; 19:320-326. [PMID: 38188130 PMCID: PMC10766449 DOI: 10.12965/jer.2346522.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 11/13/2023] [Indexed: 01/09/2024] Open
Abstract
The aim of this study was to determine whether walking exercise can regulate the expression level of neuropathic pain- and inflammatory response markers in the ipsilateral lumbar 4 to 6 dorsal root ganglion neurons after sciatic nerve injury (SNI). The experimental rats were randomly divided into seven groups: the normal control group, sedentary groups for 3, 7, and, 14 days postinjury (dpi), and walking exercise groups for 3, 7, and 14 dpi. Western blot techniques were used to evaluate specific neuropathic pain- and cytokine markers and mechanical allodynia was confirmed by paw withdrawal test. Mechanical allodynia was significantly improved in the walking exercise group compared to the sedentary group at all 7, 10, and 14 dpi. Furthermore, growth associated protein 43 and brain-derived neurotrophic factor levels were significantly increased in the walking exercise groups compared to the sedentary group at all 3, 7, and 14 dpi. Conversely, nuclear factor kappa-light-chain-enhancer of activated B cells, interleukin-6, tumor necrosis factor α, calcitonin gene-related peptide, and c-Fos expression levels were significantly decreased in the walking exercise groups compared to the sedentary group at all 3, 7, and 14 dpi. These findings suggest meaningful information that aggressive rehabilitation walking exercise applied early after SNI might be improve mechanical allodynia, neuropathic pain and inflammatory response markers following SNI.
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Affiliation(s)
- Yeong-Hyun Cho
- Department of Kinesiology, College of Natural Science, Jeju National University, Jeju,
Korea
| | - Tae-Beom Seo
- Department of Kinesiology, College of Natural Science, Jeju National University, Jeju,
Korea
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Lesnovskaya A, Ripperger HS, Donofry SD, Drake JA, Wan L, Poniatowski A, Donahue PT, Crisafio ME, Gilmore AD, Richards EA, Grove G, Gentry AL, Sereika SM, Bender CM, Erickson KI. Cardiorespiratory fitness is associated with hippocampal resting state connectivity in women newly diagnosed with breast cancer. FRONTIERS IN COGNITION 2023; 2:1211525. [PMID: 37744285 PMCID: PMC10516482 DOI: 10.3389/fcogn.2023.1211525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Background Breast cancer and its treatment are associated with aberrant patterns of resting state functional connectivity (rsFC) between the hippocampus and several areas of the brain, which may account for poorer cognitive outcomes in patients. Higher cardiorespiratory fitness (CRF) has been associated with enhanced rsFC and cognitive performance; however, these associations have not been well studied in breast cancer. We examined the relationship between CRF, rsFC of the hippocampus, and cognitive performance among women newly diagnosed with breast cancer. Methods Thirty-four postmenopausal women newly diagnosed with Stage 0-IIIa breast cancer (Mage = 63.59 ± 5.73) were enrolled in a 6-month randomized controlled trial of aerobic exercise vs. usual care. During baseline assessments, participants completed functional brain imaging, a submaximal CRF test, and cognitive testing. Whole-brain, seed-based analyses were used to examine the relationship between CRF and hippocampal rsFC, with age, years of education, and framewise displacement included as covariates. Cognition was measured with a battery of validated neurocognitive measures, reduced to seven composite factors. Results Higher CRF was positively associated with greater rsFC of the hippocampus to a cluster within the dorsomedial and dorsolateral frontal cortex (z-max = 4.37, p = 0.003, cluster extent = 1,020 voxels). Connectivity within cluster peaks was not significantly related to cognitive factors (all ps > 0.05). Discussion CRF was positively associated with hippocampal rsFC to frontal cortex structures, comprising a network of regions commonly suppressed in breast cancer. Future longitudinal research is needed to explore whether baseline rsFC predicts long-term cognitive resilience in breast cancer.
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Affiliation(s)
- Alina Lesnovskaya
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States
- Center for the Neural Basis of Cognition, University of Pittsburgh and Carnegie Mellon University, Pittsburgh, PA, United States
| | - Hayley S. Ripperger
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States
- Center for the Neural Basis of Cognition, University of Pittsburgh and Carnegie Mellon University, Pittsburgh, PA, United States
| | - Shannon D. Donofry
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Jermon A. Drake
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Lu Wan
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Alexa Poniatowski
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States
- Institute for Graduate Clinical Psychology, Widener University, Chester, PA, United States
| | - Patrick T. Donahue
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Mary E. Crisafio
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States
- Department of Health and Exercise Science, Colorado State University, Fort Collins, CO, United States
| | - Alysha D. Gilmore
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Emily A. Richards
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - George Grove
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Amanda L. Gentry
- School of Nursing, University of Pittsburgh, Pittsburgh, PA, United States
| | - Susan M. Sereika
- School of Nursing, University of Pittsburgh, Pittsburgh, PA, United States
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
- Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, PA, United States
| | - Catherine M. Bender
- School of Nursing, University of Pittsburgh, Pittsburgh, PA, United States
- Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, PA, United States
| | - Kirk I. Erickson
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, United States
- Department of Neuroscience, AdventHealth Research Institute, Orlando, FL, United States
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Beigi S, Shabkhiz F, Kordi M, Haghi-Ashtiani B, Hashemi-Madani N, Zmijewski P. The Effects of a 10-Week Aerobic and Unilateral Lower Extremity Resistance Training Program on Amplitude and Nerve Conduction Velocity of Sensory and Motor Nerves in Diabetic Patients with Neuropathy. J Hum Kinet 2023; 87:93-103. [PMID: 37229418 PMCID: PMC10203839 DOI: 10.5114/jhk/161610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 02/07/2023] [Indexed: 05/27/2023] Open
Abstract
This study aimed to investigate the effects of 10-week aerobic and unilateral lower extremity resistance training on nerve conduction velocity and amplitude of sensory and motor nerves in diabetic patients with neuropathy. This clinical trial was conducted on twenty women and men (aged 30-60 years old) with diabetic neuropathy. Participants were randomly assigned to one of the two groups: an exercise group (EG; n = 10) and a control group (CG; n = 10). The EG performed a 10-week programme with one session of aerobic exercises (40% to 70% of HR reserve), supplemented with one session of specific lower extremity resistance exercises (60-90 min/day) on the same day for four days per week. The CG subjects performed their regular daily activities. The nerve conduction velocity, amplitude of sensory and motor nerves and glycosylated haemoglobin A1c were measured before and after the intervention. The repeated-measures ANOVA showed a significant increase in the conduction velocity of the sural sensory nerve as well as the peroneal motor nerve (p < 0.01, p < 0.01). The changes in the conduction velocity of the tibial nerve were similar when compared to the control group (p > 0.05). A significantly greater decrease in glycosylated haemoglobin was also observed in the EG group (p < 0.01). Performing 10 weeks of aerobic and specific unilateral lower extremity exercises can improve the function of sensory and motor nerves and improve symptoms in diabetic patients with neuropathy. Given the limited studies in this area, the exact mechanisms of this performance improvement need further examination.
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Affiliation(s)
- Sharif Beigi
- Department of Exercise Physiology, Sport Sciences and Health Faculty, University of Tehran, Tehran, Iran
| | - Fatemeh Shabkhiz
- Department of Exercise Physiology, Sport Sciences and Health Faculty, University of Tehran, Tehran, Iran
| | - Mohammadreza Kordi
- Department of Exercise Physiology, Sport Sciences and Health Faculty, University of Tehran, Tehran, Iran
| | - Bahram Haghi-Ashtiani
- Department of Neurology, Firoozgar Hospital, Iran University of Medical Science, Tehran, Iran
| | - Nahid Hashemi-Madani
- Endocrinology and Metabolism Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Science, Iran
| | - Piotr Zmijewski
- Jozef Pilsudski University of Physical Education in Warsaw, Warsaw, Poland
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Gerovska D, Araúzo-Bravo MJ. Skeletal Muscles of Sedentary and Physically Active Aged People Have Distinctive Genic Extrachromosomal Circular DNA Profiles. Int J Mol Sci 2023; 24:ijms24032736. [PMID: 36769072 PMCID: PMC9917053 DOI: 10.3390/ijms24032736] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/19/2023] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
To bring new extrachromosomal circular DNA (eccDNA) enrichment technologies closer to the clinic, specifically for screening, early diagnosis, and monitoring of diseases or lifestyle conditions, it is paramount to identify the differential pattern of the genic eccDNA signal between two states. Current studies using short-read sequenced purified eccDNA data are based on absolute numbers of unique eccDNAs per sample or per gene, length distributions, or standard methods for RNA-seq differential analysis. Previous analyses of RNA-seq data found significant transcriptomics difference between sedentary and active life style skeletal muscle (SkM) in young people but very few in old. The first attempt using circulomics data from SkM and blood of aged lifelong sedentary and physically active males found no difference at eccDNA level. To improve the capability of finding differences between circulomics data groups, we designed a computational method to identify Differentially Produced per Gene Circles (DPpGCs) from short-read sequenced purified eccDNA data based on the circular junction, split-read signal, of the eccDNA, and implemented it into a software tool DifCir in Matlab. We employed DifCir to find to the distinctive features of the influence of the physical activity or inactivity in the aged SkM that would have remained undetected by transcriptomics methods. We mapped the data from tissue from SkM and blood from two groups of aged lifelong sedentary and physically active males using Circle_finder and subsequent merging and filtering, to find the number and length distribution of the unique eccDNA. Next, we used DifCir to find up-DPpGCs in the SkM of the sedentary and active groups. We assessed the functional enrichment of the DPpGCs using Disease Gene Network and Gene Set Enrichment Analysis. To find genes that produce eccDNA in a group without comparison with another group, we introduced a method to find Common PpGCs (CPpGCs) and used it to find CPpGCs in the SkM of the sedentary and active group. Finally, we found the eccDNA that carries whole genes. We discovered that the eccDNA in the SkM of the sedentary group is not statistically different from that of physically active aged men in terms of number and length distribution of eccDNA. In contrast, with DifCir we found distinctive gene-associated eccDNA fingerprints. We identified statistically significant up-DPpGCs in the two groups, with the top up-DPpGCs shed by the genes AGBL4, RNF213, DNAH7, MED13, and WWTR1 in the sedentary group, and ZBTB7C, TBCD, ITPR2, and DDX11-AS1 in the active group. The up-DPpGCs in both groups carry mostly gene fragments rather than whole genes. Though the subtle transcriptomics difference, we found RYR1 to be both transcriptionally up-regulated and up-DPpGCs gene in sedentary SkM. DifCir emphasizes the high sensitivity of the circulome compared to the transcriptome to detect the molecular fingerprints of exercise in aged SkM. It allows efficient identification of gene hotspots that excise more eccDNA in a health state or disease compared to a control condition.
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Affiliation(s)
- Daniela Gerovska
- Computational Biology and Systems Biomedicine, Biodonostia Health Research Institute, Calle Doctor Begiristain s/n, 20014 San Sebastian, Spain
- Correspondence: (D.G.); (M.J.A.-B.)
| | - Marcos J. Araúzo-Bravo
- Computational Biology and Systems Biomedicine, Biodonostia Health Research Institute, Calle Doctor Begiristain s/n, 20014 San Sebastian, Spain
- Basque Foundation for Science, IKERBASQUE, Calle María Díaz Harokoa 3, 48013 Bilbao, Spain
- CIBER of Frailty and Healthy Aging (CIBERfes), 28029 Madrid, Spain
- Max Planck Institute for Molecular Biomedicine, Computational Biology and Bioinformatics, Röntgenstr. 20, 48149 Münster, Germany
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of Basque Country (UPV/EHU), 48940 Leioa, Spain
- Correspondence: (D.G.); (M.J.A.-B.)
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Barham M, Andermahr J, Majczyński H, Sławińska U, Vogt J, Neiss WF. Treadmill training of rats after sciatic nerve graft does not alter accuracy of muscle reinnervation. Front Neurol 2023; 13:1050822. [PMID: 36742044 PMCID: PMC9893025 DOI: 10.3389/fneur.2022.1050822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 12/23/2022] [Indexed: 01/20/2023] Open
Abstract
Background and purpose After peripheral nerve lesions, surgical reconstruction facilitates axonal regeneration and motor reinnervation. However, functional recovery is impaired by aberrant reinnervation. Materials and methods We tested whether training therapy by treadmill exercise (9 × 250 m/week) before (run-idle), after (idle-run), or both before and after (run-run) sciatic nerve graft improves the accuracy of reinnervation in rats. Female Lewis rats (LEW/SsNHsd) were either trained for 12 weeks (run) or not trained (kept under control conditions, idle). The right sciatic nerves were then excised and reconstructed with 5 mm of a congenic allograft. One week later, training started in the run-run and idle-run groups for another 12 weeks. No further training was conducted in the run-idle and idle-idle groups. Reinnervation was measured using the following parameters: counting of retrogradely labeled motoneurons, walking track analysis, and compound muscle action potential (CMAP) recordings. Results In intact rats, the common fibular (peroneal) and the soleus nerve received axons from 549 ± 83 motoneurons. In the run-idle group, 94% of these motoneurons had regenerated 13 weeks after the nerve graft. In the idle-run group, 81% of the normal number of motoneurons had regenerated into the denervated musculature and 87% in both run-run and idle-idle groups. Despite reinnervation, functional outcome was poor: walking tracks indicated no functional improvement of motion in any group. However, in the operated hindlimb of run-idle rats, the CMAP of the soleus muscle reached 11.9 mV (normal 16.3 mV), yet only 6.3-8.1 mV in the other groups. Conclusion Treadmill training neither altered the accuracy of reinnervation nor the functional recovery, and pre-operative training (run-idle) led to a higher motor unit activation after regeneration.
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Affiliation(s)
- Mohammed Barham
- Department II of Anatomy, University of Cologne and University Hospital of Cologne, Cologne, Germany,*Correspondence: Mohammed Barham ✉
| | | | - Henryk Majczyński
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warszawa, Poland
| | - Urszula Sławińska
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warszawa, Poland
| | - Johannes Vogt
- Department II of Anatomy, University of Cologne and University Hospital of Cologne, Cologne, Germany,Cluster of Excellence for Aging Research (CECAD) and Center of Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Wolfram F. Neiss
- Department I of Anatomy, University of Cologne and University Hospital of Cologne, Cologne, Germany
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The Role of Physical Exercise and Rehabilitative Implications in the Process of Nerve Repair in Peripheral Neuropathies: A Systematic Review. Diagnostics (Basel) 2023; 13:diagnostics13030364. [PMID: 36766469 PMCID: PMC9914426 DOI: 10.3390/diagnostics13030364] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/14/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND The various mechanisms involved in peripheral nerve regeneration, induced by exercise and electrical nerve stimulation, are still unclear. OBJECTIVE The aim of this review was to summarize the influence of physical exercise and/or electrical stimulation on peripheral nerve repair and regeneration and the variation of impact of intervention depending on timing, as well as kind and dosage of the intervention. A literature survey was conducted on PubMed, Scopus, and Web of Science, between February 2021 to July 2021, with an update in September 2022. METHODOLOGY The literature search identified 101,386 articles with the keywords: "peripheral nerve" OR "neuropathy" AND "sprouting" OR "neuroapraxia" OR "axonotmesis" OR "neurotmesis" OR "muscle denervation" OR "denervated muscle" AND "rehabilitation" OR "physical activity" OR "physical exercise" OR "activity" OR "electrical stimulation". A total of 60 publications were included. Eligible studies were focused on evaluating the process of nerve repair (biopsy, electromyographic parameters or biomarker outcomes) after electrical stimulation or physical exercise interventions on humans or animals with peripheral sensory or motor nerve injury. SYNTHESIS This study shows that the literature, especially regarding preclinical research, is mainly in agreement that an early physical program with active exercise and/or electrical stimulation promotes axonal regenerative responses and prevents maladaptive response. This was evaluated by means of changes in electrophysiological recordings of CMAPs for latency amplitude, and the sciatic functional index (SFI). Furthermore, this type of activity can cause an increase in weight and in muscle fiber diameter. Nevertheless, some detrimental effects of exercising and electrical stimulation too early after nerve repair were recorded. CONCLUSION In most preclinical studies, peripheral neuropathy function was associated with improvements after physical exercise and electrical stimulation. For humans, too little research has been conducted on this topic to reach a complete conclusion. This research supports the need for future studies to test the validity of a possible rehabilitation treatment in humans in cases of peripheral neuropathy to help nerve sprouting.
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Pérez-Martinez IO, Cifuentes-Mendiola SE, Solis-Suarez DL, García-Hernández AL. Moderate intensity aerobic training reduces the signs of peripheral sensitization in a mouse model of type 2 diabetes mellitus. Exp Brain Res 2022; 240:2747-2756. [PMID: 36063191 DOI: 10.1007/s00221-022-06453-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/27/2022] [Indexed: 11/27/2022]
Abstract
Type 2 diabetes mellitus (T2DM) is a global health problem for many reasons including the comorbidities, such as diabetic neuropathy (DPN), which is the most common. It has been suggested that aerobic training can improve metabolic health in individuals with T2DM. Still, the effect of aerobic training on DPN signs and its relationship with serum levels of tumor necrosis tumor alpha (TNF-α), an essential molecule in T2DM development, is unknown. We evaluated the effect of two intensities of aerobic training in adult male C57BL/6 mice divided into six groups: sedentary control (CTRL), control with low-intensity training (CTRL-LI), control with moderate-intensity training (CTRL-MI), T2DM sedentary (T2DM), T2DM with low-intensity training (T2DM-LI), and T2DM with moderate-intensity training (T2DM-MI). We induced the T2DM model by combining a hypercaloric diet and low doses of streptozotocin. We measured serum TNF-α levels and correlated them with peripheral sensitization and the cardinal signs of T2DM in mice. Moderate intensity aerobic training decreased the symptoms of DPN and improved metabolic health in T2DM. Interestingly, decreased TNF-α serum levels correlated with reduced peripheral thermal sensitivity and mechanical sensitivity by aerobic training. Moderate intensity aerobic training counteracts the development and symptoms of DPN and improve metabolic health in T2DM. Decreased TNF-α correlates with reduced peripheral thermal sensitivity and mechanical sensitivity by aerobic training.
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Affiliation(s)
- Isaac O Pérez-Martinez
- Sección de neurobiología de las Sensaciones y Movimientos orales, Laboratorio de Investigación Odontologica, Clínica Universitaria de Salud Integral Almaraz FES Iztacala, UNAM. Av. Jiménez Gallardo SN, San Sebastián Xhala, CP 54714, Cuautitlán Izcalli, Estado de México, México
| | - Saul E Cifuentes-Mendiola
- Sección de osteoinmunología e inmunidad oral, Laboratorio de investigación Odontológica, Clínica Universitaria de Salud Integral Almaraz FES Iztacala, UNAM. Av. Jiménez Gallardo SN, San Sebastián Xhala, CP 54714, Cuautitlán Izcalli, Estado de México, México
| | - Diana L Solis-Suarez
- Sección de osteoinmunología e inmunidad oral, Laboratorio de investigación Odontológica, Clínica Universitaria de Salud Integral Almaraz FES Iztacala, UNAM. Av. Jiménez Gallardo SN, San Sebastián Xhala, CP 54714, Cuautitlán Izcalli, Estado de México, México
| | - Ana L García-Hernández
- Sección de osteoinmunología e inmunidad oral, Laboratorio de investigación Odontológica, Clínica Universitaria de Salud Integral Almaraz FES Iztacala, UNAM. Av. Jiménez Gallardo SN, San Sebastián Xhala, CP 54714, Cuautitlán Izcalli, Estado de México, México.
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11
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Arabzadeh E, Reza Rahimi A, Zargani M, Feyz Simorghi Z, Emami S, Sheikhi S, Zaeri Amirani Z, Yousefi P, Sarshin A, Aghaei F, Feizollahi F. Resistance exercise promotes functional test via sciatic nerve regeneration, and muscle atrophy improvement through GAP-43 regulation in animal model of traumatic nerve injuries. Neurosci Lett 2022; 787:136812. [PMID: 35872241 DOI: 10.1016/j.neulet.2022.136812] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/12/2022] [Accepted: 07/19/2022] [Indexed: 11/30/2022]
Abstract
Resistance training improves muscle strength through a combination of neural plasticity and muscle hypertrophy. This study aimed to evaluate the effects of resistance exercise on sciatic nerve regeneration and histology, growth-associated protein 43 (GAP-43) expressions, and soleus muscle atrophy following traumatic nerve injuries in Wistar rats. In the present study, 40 male Wistar rats were randomly assigned into four groups: healthy control (HC) as a sham group was exposed to the surgical procedures without any sciatic nerve compression, lesioned control (LC), resistance training (RT,non-lesioned), and lesioned rats+RT (LRT) (n=10 in each). The RT group performed a resistance-training program 5 days/week for 4 weeks. Sciatic functional index (SFI) score, beam score and Basso, Beattie, and Bresnahan (BBB) score decreased and the hot plate time increased significantly in the LC group compared to the HC (p<0.05) group. However, the LRT group showed a significant increase in the SFI score (p=0.001) and a significant decrease in hot plate time (p=0.0232) compared to the LC group. The LC group also showed neurological morphological damage and muscle atrophy and a decrease in GAP-43 in nerve tissue. In comparison to the LC group, a significant increase in sciatic nerve caliber, diameter, number of muscle fibers, and the expression of GAP-43 (p<0.05) was observed in the LRT group. Doing resistance training even for four weeks seems to affect sciatic nerve lesions and injuries. It can also repair and regenerate nerve tissue by upregulating GAP-43 expression, improving motor behavioral tests, and controlling muscle atrophy.
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Affiliation(s)
- Ehsan Arabzadeh
- Exercise Physiology Research Center, Life Style Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Ali Reza Rahimi
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Mehdi Zargani
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Zeinab Feyz Simorghi
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Shaghayegh Emami
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Sahar Sheikhi
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Zeinab Zaeri Amirani
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Parisa Yousefi
- Department of Exercise Physiology, Islamic Azad University, Karaj Branch, Karaj, Alborz, Iran
| | - Amir Sarshin
- Clinical Care and Health Promotion Research Center, Karaj branch, Islamic Azad University, Karaj, Iran
| | - Fariba Aghaei
- Clinical Care and Health Promotion Research Center, Karaj branch, Islamic Azad University, Karaj, Iran
| | - Foad Feizollahi
- Clinical Care and Health Promotion Research Center, Karaj branch, Islamic Azad University, Karaj, Iran.
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12
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Singleton JR, Foster-Palmer S, Marcus RL. Exercise as Treatment for Neuropathy in the Setting of Diabetes and Prediabetic Metabolic Syndrome: A Review of Animal Models and Human Trials. Curr Diabetes Rev 2022; 18:e230921196752. [PMID: 34561989 DOI: 10.2174/1573399817666210923125832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/21/2021] [Accepted: 05/17/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Peripheral neuropathy is among the most common complications of diabetes, but a phenotypically identical distal sensory predominant, painful axonopathy afflicts patients with prediabetic metabolic syndrome, exemplifying a spectrum of risk and continuity of pathogenesis. No pharmacological treatment convincingly improves neuropathy in the setting of metabolic syndrome, but evolving data suggest that exercise may be a promising alternative. OBJECTIVE The aim of the study was to review in depth the current literature regarding exercise treatment of metabolic syndrome neuropathy in humans and animal models, highlight the diverse mechanisms by which exercise exerts beneficial effects, and examine adherence limitations, safety aspects, modes and dose of exercise. RESULTS Rodent models that recapitulate the organismal milieu of prediabetic metabolic syndrome and the phenotype of its neuropathy provide a strong platform to dissect exercise effects on neuropathy pathogenesis. In these models, exercise reverses hyperglycemia and consequent oxidative and nitrosative stress, improves microvascular vasoreactivity, enhances axonal transport, ameliorates the lipotoxicity and inflammatory effects of hyperlipidemia and obesity, supports neuronal survival and regeneration following injury, and enhances mitochondrial bioenergetics at the distal axon. Prospective human studies are limited in scale but suggest exercise to improve cutaneous nerve regenerative capacity, neuropathic pain, and task-specific functional performance measures of gait and balance. Like other heath behavioral interventions, the benefits of exercise are limited by patient adherence. CONCLUSION Exercise is an integrative therapy that potently reduces cellular inflammatory state and improves distal axonal oxidative metabolism to ameliorate features of neuropathy in metabolic syndrome. The intensity of exercise need not improve cardinal features of metabolic syndrome, including weight, glucose control, to exert beneficial effects.
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Affiliation(s)
| | | | - Robin L Marcus
- Department Physical Therapy and Athletic Training, University of Utah, UT, United States
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13
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Vyshlova I, Karpov S, Raevskaya A, Reverchuk I. Rehabilitation of patients with chronic low back pain. Zh Nevrol Psikhiatr Im S S Korsakova 2022; 122:14-19. [DOI: 10.17116/jnevro202212206114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Mattos E, Guedes A, Lessa PIF, Baptista AF. Influence of surface peripheral electrical stimulation on nerve regeneration after digital nerve neurorrhaphy: study protocol for a randomized clinical trial. F1000Res 2021; 10:219. [PMID: 34909180 PMCID: PMC8596177 DOI: 10.12688/f1000research.42120.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/30/2021] [Indexed: 11/28/2022] Open
Abstract
We will study the influence of low intensity and frequency surface peripheral electrical stimulation (PES) on nerve regeneration of digital nerve injuries of the hand after its surgical repair in humans. Participants will be patients with acute traumatic peripheral nerve injury referred to the Hand Surgery Service of the General Hospital of the State of Bahia, a reference service in the state. These patients will undergo surgery followed by PES in the immediate postoperative period. After hospital discharge, they will be followed up on an outpatient basis by researchers, who will remotely supervise a physiotherapy program. Our hypothesis is that PES will positively influence the recovery of sensory function in patients undergoing neurorrhaphy of digital nerves of the hand. ReBEC registration: U1111-1259-1998 (12/18/2020)
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Affiliation(s)
- Enilton Mattos
- Pos Graduate Program in Medicine and Human Health, Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil.,Professor Edgard Santos University Hospital Complex, Salvador, Bahia, Brazil
| | - Alex Guedes
- Professor Edgard Santos University Hospital Complex, Salvador, Bahia, Brazil.,Bahia Medical School, Federal University of Bahia, Salvador, Bahia, Brazil
| | | | - Abrahão Fontes Baptista
- Pos Graduate Program in Medicine and Human Health, Escola Bahiana de Medicina e Saúde Pública, Salvador, Bahia, Brazil.,Center for Mathematics, Computation and Cognition, Federal University of ABC, São Bernardo do Campo, São Paulo, Brazil.,Laboratory of Medical Investigations 54 (LIM-54), São Paulo University, São Paulo, São Paulo, Brazil
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15
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Negri S, Samuel TJ, Lee S. The Potential Role of Exercise Training and Mechanical Loading on Bone-Associated Skeletal Nerves. J Bone Metab 2021; 28:267-277. [PMID: 34905674 PMCID: PMC8671028 DOI: 10.11005/jbm.2021.28.4.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 11/07/2021] [Indexed: 11/11/2022] Open
Abstract
The spatial distribution, innervation, and functional role of the bone-associated skeletal nerves have been previously reported in detail. However, studies examining exercise-induced associations between skeletal nerves and bone metabolism are limited. This review introduces a potential relationship between exercise and the skeletal nerves and discusses how it can contribute to exercise-induced bone anabolism. First, the background and current understanding of nerve fiber types and their functions in the skeleton are provided. Next, the influence of exercise and mechanical loading on the skeletal nervous system is elaborated. Effective synthesis of recent studies could serve as an established baseline for the novel discovery of the effects of exercise on skeletal nerve density and bone anabolic activity in the future. Therefore, this review overviews the existing evidence for the neural control of bone metabolism and the potential positive effects of exercise on the peripheral skeletal nervous system. The influence of exercise training models on the relationships of sensory nerve signals with osteoblast-mediated bone formation and the increased bone volume provides the first insight on the potential importance of exercise training in stimulating positive adaptations in the skeletal nerve-bone interaction and its downstream effect on bone metabolism, thereby highlighting its therapeutic potential in a variety of clinical populations.
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Affiliation(s)
- Stefano Negri
- Department of Orthopedics and Trauma Surgery, Department of Surgery, Dentistry, Pediatrics and Gynecology of the University of Verona, Verona, Italy
| | - T Jake Samuel
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Seungyong Lee
- Department of Physiology, College of Graduate Studies, Midwestern University Arizona College of Osteopathic Medicine, Glendale, AZ, USA
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16
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Ng KG, Ho DC, Wee TC. Ischemic lumbosacral plexopathy after embolization of type 2 endoleak: Progress and functional outcome. Clin Case Rep 2021; 9:e05182. [PMID: 34934498 PMCID: PMC8650807 DOI: 10.1002/ccr3.5182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/30/2021] [Accepted: 11/19/2021] [Indexed: 11/10/2022] Open
Abstract
An endoleak is a complication that can occur after an endovascular aneurysm repair. We report a rare case of ischemic lumbosacral plexopathy post embolization of type 2 endoleak, including its presentation, neurological progress, rehabilitation strategy and functional outcome.
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Affiliation(s)
- Kuan Geok Ng
- Department of General Medicine/Rehabilitation MedicineSengkang General HospitalSingapore CitySingapore
| | - Derek Chunyin Ho
- Department of General SurgeryChangi General HospitalSingapore CitySingapore
| | - Tze Chao Wee
- Department of Rehabilitation MedicineChangi General HospitalSingapore CitySingapore
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17
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Farzin M, Babaei P, Rostampour M. Intrahippocampal Injections of Ghrelin and Aerobic Physical Exercise: Effects on Learning and Passive Avoidance Memory in Rats. NEUROPHYSIOLOGY+ 2021. [DOI: 10.1007/s11062-021-09912-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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Margiana R, Alawiyah K, Ima K, Fitriana R, Widodo AR, Wibowo TD. Improvement of Walking Analysis using the Sciatic Function Index for Sciatic Nerve Function in Injured Rat Model Treated with Low-Intensity Aerobics. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.7289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Sciatica is a disease of the peripheral nerves. Sciatica indicates that there is damage to the peripheral nerves in the sciatic nerves. Factors that can affect this disease include gender, posture, parity, age, genetic factors, and occupation. Some of the pathophysiological conditions of sciatica include the pathology of the intervertebral disc, dorsal root, and sciatic nerve itself. The results of standard therapy with surgery have not been effective and very expensive. Therefore, research on therapy in sciatica cases still needs to be done and evaluated. Physical exercise treatment (aerobic] is necessary for this therapy in sciatica cases due to promote the function of peripheral nerves.
AIM: This study aimed to determine the effect of aerobic exercise treatment on peripheral nerve injury and its relationship to walking function during injury-induced peripheral nerve regeneration.
METHODS: This study was an experimental study with a post-test. he study sample consisted of Male Sprague-Dawley rats with an age of about 2-3 months divided into three groups. Control group was conducted by surgery without clamping/injuring the peripheral nerves. The treatment for second group (P1) was clamping/injury of peripheral nerve and given the treatment of physical exercise with aerobics. The treatment for third group (P2) was clamping/injury of peripheral nerve and not given the treatment of physical exercise with aerobics. The intensity of giving physical exercise treatment with aerobic that is carried out is for 42 days. Nerve functional evaluation was carried out using the sciatic function index (SFI) method. Histological staining for sciatic was used hematoxylin-Eosin (HE) staining and immunohistochemistry with Growth Associated Protein 43 (GAP43) [Bioss, bs-0154R] and S100 antibody [ab52642]. This research was approved by Animal Ethics Committee of University of Indonesia protocol (No.19-07-0852).
RESULTS: There was a significant change between the 7th and 14th days (p<0.001; paired t-test) in the P1 treatment. Improvement in nerve function was found on the 14th day after being given aerobic treatment. This is indicated by the data average change in SFI scores on days 7 and 4 was from -144 to 34. This data is also supported by footprint changes for injured hindfoot data.
CONCLUSION: Low intensity aerobics treatment improve the walking function and nerve function in sciatic nerve injury on day 14. This is due to the effect of physical exercise on the injured sciatic nerve.
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19
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Maugeri G, D'Agata V, Trovato B, Roggio F, Castorina A, Vecchio M, Di Rosa M, Musumeci G. The role of exercise on peripheral nerve regeneration: from animal model to clinical application. Heliyon 2021; 7:e08281. [PMID: 34765794 PMCID: PMC8571504 DOI: 10.1016/j.heliyon.2021.e08281] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 06/26/2021] [Accepted: 10/25/2021] [Indexed: 12/15/2022] Open
Abstract
Peripheral nerve injury is a complex condition with a variety of signs and symptoms depending on the severity and nerves involved. Peripheral nerve damage may lead to sensory and motor functions deficits and even lifelong disability, causing important socioeconomic costs worldwide. Despite the increase in knowledge of the mechanisms of injury and regeneration, a full functional recovery is still unsatisfying in the majority of patients. It is well known that exercise promotes physical and psychological well-being, by ameliorating general health. In the last years, there has been a growing interest in evaluating the effects of exercise on the peripheral nervous system. Experimental works with rodent models showed the potential utility of exercise following peripheral nerve injuries, as evinced by increasing axon regeneration, muscle reinnervation, better recovery of strength, muscle mass and higher expression of neurotrophic factors. Moreover, clinical evidence showed positive trends in favour of physical therapy following peripheral nerve damage based on the improvement of range of motion (ROM), muscle power grade and pain. After a brief overview of peripheral nerve anatomy and the different types of nerve injury, the present review aims to summarize the impact of exercise on peripheral nerve regeneration. Some clinical evidence regarding the effect of exercise after peripheral nerve injury will also be discussed.
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Affiliation(s)
- Grazia Maugeri
- Department of Biomedical and Biotechnological Sciences, Human, Histology and Movement Science Section, University of Catania, Via S. Sofia n°87, 95123, Catania, Italy
| | - Velia D'Agata
- Department of Biomedical and Biotechnological Sciences, Human, Histology and Movement Science Section, University of Catania, Via S. Sofia n°87, 95123, Catania, Italy
| | - Bruno Trovato
- Research Center on Motor Activities (CRAM), University of Catania, Via S. Sofia n°97, 95123, Catania, Italy
| | - Federico Roggio
- Research Center on Motor Activities (CRAM), University of Catania, Via S. Sofia n°97, 95123, Catania, Italy
| | - Alessandro Castorina
- Laboratory of Cellular and Molecular Neuroscience (LCMN), School of Life Sciences, Faculty of Science, University of Technology Sydney, PO Box 123, Broadway, NSW, 2007, Australia.,Laboratory of Neural Structure and Function (LNSF), School of Medical Sciences, (Anatomy & Histology), Faculty of Medicine and Health, University of Sydney, Sydney, NSW, 2006, Australia
| | - Michele Vecchio
- Unit of Rehabilitation, Vittorio Emanuele University Hospital, Catania, Italy
| | - Michelino Di Rosa
- Department of Biomedical and Biotechnological Sciences, Human, Histology and Movement Science Section, University of Catania, Via S. Sofia n°87, 95123, Catania, Italy
| | - Giuseppe Musumeci
- Department of Biomedical and Biotechnological Sciences, Human, Histology and Movement Science Section, University of Catania, Via S. Sofia n°87, 95123, Catania, Italy.,Research Center on Motor Activities (CRAM), University of Catania, Via S. Sofia n°97, 95123, Catania, Italy.,Department of Biology, Sbarro Institute for Cancer Research and Molecular Medicine, College of Science and Technology, Temple University, Philadelphia, PA, 19122, USA
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20
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MicroRNAs 21 and 199a-3p Regulate Axon Growth Potential through Modulation of Pten and mTor mRNAs. eNeuro 2021; 8:ENEURO.0155-21.2021. [PMID: 34326064 PMCID: PMC8362682 DOI: 10.1523/eneuro.0155-21.2021] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/11/2021] [Accepted: 07/15/2021] [Indexed: 12/14/2022] Open
Abstract
Increased mTOR activity has been shown to enhance regeneration of injured axons by increasing neuronal protein synthesis, while PTEN signaling can block mTOR activity to attenuate protein synthesis. MicroRNAs (miRs) have been implicated in regulation of PTEN and mTOR expression, and previous work in spinal cord showed an increase in miR-199a-3p after spinal cord injury (SCI) and increase in miR-21 in SCI animals that had undergone exercise. Pten mRNA is a target for miR-21 and miR-199a-3p is predicted to target mTor mRNA. Here, we show that miR-21 and miR-199a-3p are expressed in adult dorsal root ganglion (DRG) neurons, and we used culture preparations to test functions of the rat miRs in adult DRG and embryonic cortical neurons. miR-21 increases and miR-199a-3p decreases in DRG neurons after in vivo axotomy. In both the adult DRG and embryonic cortical neurons, miR-21 promotes and miR-199a-3p attenuates neurite growth. miR-21 directly bound to Pten mRNA and miR-21 overexpression decreased Pten mRNA levels. Conversely, miR-199a-3p directly bound to mTor mRNA and miR-199a-3p overexpression decreased mTor mRNA levels. Overexpressing miR-21 increased both overall and intra-axonal protein synthesis in cultured DRGs, while miR-199a-3p overexpression decreased this protein synthesis. The axon growth phenotypes seen with miR-21 and miR-199a-3p overexpression were reversed by co-transfecting PTEN and mTOR cDNA expression constructs with the predicted 3′ untranslated region (UTR) miR target sequences deleted. Taken together, these studies indicate that injury-induced alterations in miR-21 and miR-199a-3p expression can alter axon growth capacity by changing overall and intra-axonal protein synthesis through regulation of the PTEN/mTOR pathway.
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21
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Gholami F, Khaki R, Mirzaei B, Howatson G. Resistance training improves nerve conduction and arterial stiffness in older adults with diabetic distal symmetrical polyneuropathy: A randomized controlled trial. Exp Gerontol 2021; 153:111481. [PMID: 34280509 DOI: 10.1016/j.exger.2021.111481] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 06/29/2021] [Accepted: 07/12/2021] [Indexed: 12/17/2022]
Abstract
Diabetes is the main cause of peripheral neuropathy where older patients are at increased risk of diabetic distal symmetrical polyneuropathy (DSPN) due to age-related nerve degeneration and vascular changes. The aim of the study was to investigate the effect of resistance training on nerve conduction, measures of neuropathy and arterial stiffness in older patients with DSPN. In a randomized controlled trial, thirty-four older adults with type-2 diabetes and peripheral neuropathy were enrolled and randomly assigned to experimental and control groups. The experimental group carried out circuit resistance training (1-3 rounds, 11 exercises, 10-15 reps, 50%-60% of 1RM, 3 times per week) for 12 weeks. Measurements were performed at baseline and 48 h after the intervention. Measures of DSPN including Michigan neuropathy screening instrument (MNSI), Michigan diabetic neuropathy score (MDNS), motor nerve action potential amplitude (APA), sensory and motor nerve conduction velocity (NCV) improved following intervention (p < 0.001, p = 0.001, p = 0.034, p = 0.001, and p = 0.001, respectively). Sensory APA did not change after the intervention (p = 0.139). Cardio-ankle vascular index (CAVI) and ankle-brachial index (ABI) improved in the experimental group compared with the control group (p = 0.014 and p = 0.033, respectively). In addition, HbA1C decreased following the 12-week resistance training program (p = 0.002). Older adults with DSPN respond positively to resistance training by improved neuropathy symptoms, nerve conduction, arterial stiffness and glucose regulation. Resistance training offers a positive intervention that can abate the progression of DSPN in older adults.
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Affiliation(s)
- Farhad Gholami
- Faculty of Sport Sciences, Shahrood University of Technology, Shahrood, Semnan, Iran.
| | - Raziyeh Khaki
- Faculty of Sport Sciences, Shahrood University of Technology, Shahrood, Semnan, Iran
| | - Batool Mirzaei
- Faculty of Sport Sciences, Shahrood University of Technology, Shahrood, Semnan, Iran
| | - Glyn Howatson
- Department of Sport, Exercise and Rehabilitation, Northumbria University, Newcastle upon Tyne, UK; Water Research Group, North West University, Potchefstroom, South Africa
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22
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Ryu JS, Chung HR, Meador BM, Seo Y, Kim KO. The Associations between Physical Fitness, Complex vs Simple Movement, and Academic Achievement in a Cohort of Fourth Graders. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052293. [PMID: 33652565 PMCID: PMC7967682 DOI: 10.3390/ijerph18052293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/15/2021] [Accepted: 02/20/2021] [Indexed: 11/30/2022]
Abstract
This study analyzed the correlation between elementary school students’ body composition, physical activity, physical fitness, movement ability, and academic achievement. Movements ranged from simple actions to complex movements requiring executive functioning. In total, 110 fourth graders (60 boys, 50 girls) participated in this experiment. Body composition (BMI, % of body fat), physical activity (pedometer), physical fitness (muscular strength, endurance, power, flexibility, and VO2max), and complex movement abilities (Illinois Agility test, soda pop hand test, and soda pop foot test) were measured. Regression modeling of body composition and fitness/activity variables was able to account for 30.5% of the variation of total academic scores in females, but only 4.3% in males. No individual tests were reliably correlated with multiple academic outcomes in males. However, hand and foot soda pop times, as well as Illinois Agility scores, were repeatedly correlated with academic outcomes in females, each correlating with 4 of the 6 academic scores. Body composition and physical activity level did not correlate with academic achievement, and simple physical fitness showed a low correlation with academic achievement in both boys and girls. On the other hand, complex, cognitively demanding movements such as the Illinois Agility, soda pop hand, and soda pop foot tests had consistent correlations with academic achievement in girls, but not in boys.
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Affiliation(s)
- Jong-Sik Ryu
- Department of Physical Education, Kyungpook National University, Daegu 41566, Korea;
| | - Hae Ryong Chung
- Health and Fitness Management, College of Health, Clayton State University, Morrow, GA 30260, USA;
| | - Benjamin M. Meador
- Exercise Science, College of Nursing and Health Sciences, Georgia Southwestern State University, Americus, GA 31709, USA;
| | - Yongsuk Seo
- Environmental Physiology Laboratory, Kent State University, Kent, OH 44242, USA;
| | - Kyung-O Kim
- Department of Gerokinesiology, Kyungil University, Kyungsan 38428, Korea
- Correspondence: or ; Tel.: +82-08-10-4644-1053
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Kampanis V, Tolou-Dabbaghian B, Zhou L, Roth W, Puttagunta R. Cyclic Stretch of Either PNS or CNS Located Nerves Can Stimulate Neurite Outgrowth. Cells 2020; 10:cells10010032. [PMID: 33379276 PMCID: PMC7824691 DOI: 10.3390/cells10010032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 12/15/2022] Open
Abstract
The central nervous system (CNS) does not recover from traumatic axonal injury, but the peripheral nervous system (PNS) does. We hypothesize that this fundamental difference in regenerative capacity may be based upon the absence of stimulatory mechanical forces in the CNS due to the protective rigidity of the vertebral column and skull. We developed a bioreactor to apply low-strain cyclic axonal stretch to adult rat dorsal root ganglia (DRG) connected to either the peripheral or central nerves in an explant model for inducing axonal growth. In response, larger diameter DRG neurons, mechanoreceptors and proprioceptors showed enhanced neurite outgrowth as well as increased Activating Transcription Factor 3 (ATF3).
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Affiliation(s)
- Vasileios Kampanis
- Laboratory for Experimental Neuroregeneration, Spinal Cord Injury Center, Heidelberg University Hospital, 69118 Heidelberg, Germany; (V.K.); (B.T.-D.)
| | - Bahardokht Tolou-Dabbaghian
- Laboratory for Experimental Neuroregeneration, Spinal Cord Injury Center, Heidelberg University Hospital, 69118 Heidelberg, Germany; (V.K.); (B.T.-D.)
| | - Luming Zhou
- Laboratory of NeuroRegeneration and Repair, Hertie Institute for Clinical Brain Research, University of Tübingen, 72076 Tübingen, Germany;
| | - Wolfgang Roth
- Laboratory for Experimental Neurorehabilitation, Heidelberg University Hospital, 69118 Heidelberg, Germany;
| | - Radhika Puttagunta
- Laboratory for Experimental Neuroregeneration, Spinal Cord Injury Center, Heidelberg University Hospital, 69118 Heidelberg, Germany; (V.K.); (B.T.-D.)
- Correspondence:
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Battilana F, Steurer S, Rizzi G, Delgado AC, Tan KR, Handschin C. Exercise-linked improvement in age-associated loss of balance is associated with increased vestibular input to motor neurons. Aging Cell 2020; 19:e13274. [PMID: 33174325 PMCID: PMC7744958 DOI: 10.1111/acel.13274] [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: 06/25/2020] [Revised: 09/23/2020] [Accepted: 10/18/2020] [Indexed: 12/27/2022] Open
Abstract
Age‐associated loss of muscle function is exacerbated by a concomitant reduction in balance, leading to gait abnormalities and falls. Even though balance defects can be mitigated by exercise, the underlying neural mechanisms are unknown. We now have investigated components of the proprioceptive and vestibular systems in specific motor neuron pools in sedentary and trained old mice, respectively. We observed a strong age‐linked deterioration in both circuits, with a mitigating effect of exercise on vestibular synapse numbers on motor neurons, closely associated with an improvement in gait and balance in old mice. Our results thus describe how the proprioceptive and vestibular systems are modulated by age and exercise, and how these changes affect their input to motor neurons. These findings not only make a strong case for exercise‐based interventions in elderly individuals to improve balance, but could also lead to targeted therapeutic interventions aimed at the respective neuronal circuitry.
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Affiliation(s)
| | | | | | | | - Kelly R. Tan
- Biozentrum University of Basel Basel Switzerland
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25
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Li J, Ying Y, Su F, Chen L, Yang J, Jia J, Jia X, Xu W. The Hua-Shan rehabilitation program after contralateral seventh cervical nerve transfer for spastic arm paralysis. Disabil Rehabil 2020; 44:404-411. [PMID: 32478582 DOI: 10.1080/09638288.2020.1768597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Purpose: To propose the novel Hua-Shan rehabilitation program for patients undergoing the contralateral seventh cervical nerve transfer, and explore the influence of different rehabilitation on the postoperative recovery.Materials and methods: The Hua-Shan program was established in consideration of the three elements: the nerve regeneration, brain plasticity and group therapy. Its effect was evaluated by comparing the postoperative recovery of the hemorrhagic stroke survivors among the following three groups: Group A-standard Hua-Shan program after surgery; Group B-standard traditional program after surgery; Group C-no standard rehabilitation after surgery.Results: Significantly better functions after surgery were detected in all the groups, while the absence of standard rehabilitation massively offset the benefits of the surgery. Furthermore, the Hua-Shan program showed advantage over the traditional rehabilitation, which may largely be attributed to its improvements for the fine action of wrist&finger.Conclusions: The Hua-Shan program provided the opportunity to maximize the benefits of contralateral seventh cervical nerve transfer.IMPLICATIONS FOR REHABILITATIONStandard rehabilitation plays key roles in the recovery process for patients undergoing contralateral seventh cervical nerve transfer.The Hua-Shan program targeting nerve regeneration, brain plasticity and group therapy further improved the benefits of patients undergoing contralateral seventh cervical nerve transfer.
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Affiliation(s)
- Jie Li
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China.,Department of Hand and Upper Extremity Surgery, Jing'an District Central Hospital, Fudan University, Shanghai, China
| | - Ying Ying
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China.,Department of Hand and Upper Extremity Surgery, Jing'an District Central Hospital, Fudan University, Shanghai, China
| | - Fan Su
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - Liwen Chen
- Department of Hand and Upper Extremity Surgery, Jing'an District Central Hospital, Fudan University, Shanghai, China
| | - Jingrui Yang
- Department of Hand and Upper Extremity Surgery, Jing'an District Central Hospital, Fudan University, Shanghai, China
| | - Jie Jia
- Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaofeng Jia
- Department of Neurosurgery, Orthopaedics, Anatomy Neurobiology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Wendong Xu
- Department of Hand Surgery, Huashan Hospital, Fudan University, Shanghai, China
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26
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Hutson TH, Kathe C, Palmisano I, Bartholdi K, Hervera A, De Virgiliis F, McLachlan E, Zhou L, Kong G, Barraud Q, Danzi MC, Medrano-Fernandez A, Lopez-Atalaya JP, Boutillier AL, Sinha SH, Singh AK, Chaturbedy P, Moon LDF, Kundu TK, Bixby JL, Lemmon VP, Barco A, Courtine G, Di Giovanni S. Cbp-dependent histone acetylation mediates axon regeneration induced by environmental enrichment in rodent spinal cord injury models. Sci Transl Med 2020; 11:11/487/eaaw2064. [PMID: 30971452 DOI: 10.1126/scitranslmed.aaw2064] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 03/21/2019] [Indexed: 12/24/2022]
Abstract
After a spinal cord injury, axons fail to regenerate in the adult mammalian central nervous system, leading to permanent deficits in sensory and motor functions. Increasing neuronal activity after an injury using electrical stimulation or rehabilitation can enhance neuronal plasticity and result in some degree of recovery; however, the underlying mechanisms remain poorly understood. We found that placing mice in an enriched environment before an injury enhanced the activity of proprioceptive dorsal root ganglion neurons, leading to a lasting increase in their regenerative potential. This effect was dependent on Creb-binding protein (Cbp)-mediated histone acetylation, which increased the expression of genes associated with the regenerative program. Intraperitoneal delivery of a small-molecule activator of Cbp at clinically relevant times promoted regeneration and sprouting of sensory and motor axons, as well as recovery of sensory and motor functions in both the mouse and rat model of spinal cord injury. Our findings showed that the increased regenerative capacity induced by enhancing neuronal activity is mediated by epigenetic reprogramming in rodent models of spinal cord injury. Understanding the mechanisms underlying activity-dependent neuronal plasticity led to the identification of potential molecular targets for improving recovery after spinal cord injury.
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Affiliation(s)
- Thomas H Hutson
- Centre for Restorative Neuroscience, Division of Brain Sciences, Department of Medicine, Imperial College London, London W12 0NN, UK
| | - Claudia Kathe
- Neurorestoration Group, Wolfson Centre for Age-Related Diseases, King's College London, London SE1 1UL, UK.,Brain Mind Institute and Center for Neuroprosthetics, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1202 Geneva, Switzerland
| | - Ilaria Palmisano
- Centre for Restorative Neuroscience, Division of Brain Sciences, Department of Medicine, Imperial College London, London W12 0NN, UK
| | - Kay Bartholdi
- Brain Mind Institute and Center for Neuroprosthetics, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1202 Geneva, Switzerland
| | - Arnau Hervera
- Centre for Restorative Neuroscience, Division of Brain Sciences, Department of Medicine, Imperial College London, London W12 0NN, UK
| | - Francesco De Virgiliis
- Centre for Restorative Neuroscience, Division of Brain Sciences, Department of Medicine, Imperial College London, London W12 0NN, UK
| | - Eilidh McLachlan
- Centre for Restorative Neuroscience, Division of Brain Sciences, Department of Medicine, Imperial College London, London W12 0NN, UK
| | - Luming Zhou
- Centre for Restorative Neuroscience, Division of Brain Sciences, Department of Medicine, Imperial College London, London W12 0NN, UK.,Hertie Institute for Clinical Brain Research, University of Tubingen, Tubingen, Germany
| | - Guiping Kong
- Centre for Restorative Neuroscience, Division of Brain Sciences, Department of Medicine, Imperial College London, London W12 0NN, UK.,Hertie Institute for Clinical Brain Research, University of Tubingen, Tubingen, Germany
| | - Quentin Barraud
- Brain Mind Institute and Center for Neuroprosthetics, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1202 Geneva, Switzerland
| | - Matt C Danzi
- Miami Project to Cure Paralysis, University of Miami, Miami, FL 33136, USA
| | - Alejandro Medrano-Fernandez
- Instituto de Neurociencias, Universidad Miguel Hernandez Consejo Superior de Investigaciones Científicas, 03550 Alicante, Spain
| | - Jose P Lopez-Atalaya
- Instituto de Neurociencias, Universidad Miguel Hernandez Consejo Superior de Investigaciones Científicas, 03550 Alicante, Spain
| | - Anne L Boutillier
- Université de Strasbourg, CNRS, UMR 7364, Laboratoire de Neuroscience Cognitives et Adaptatives (LNCA), F-67000 Strasbourg, France
| | - Sarmistha H Sinha
- Transcription and Disease Laboratory, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
| | - Akash K Singh
- Transcription and Disease Laboratory, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
| | - Piyush Chaturbedy
- Nanomaterials and Catalysis Laboratory, Chemistry and Physics of Materials Unit, JNCASR, Bangalore 560064, India
| | - Lawrence D F Moon
- Neurorestoration Group, Wolfson Centre for Age-Related Diseases, King's College London, London SE1 1UL, UK
| | - Tapas K Kundu
- Transcription and Disease Laboratory, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
| | - John L Bixby
- Miami Project to Cure Paralysis, University of Miami, Miami, FL 33136, USA
| | - Vance P Lemmon
- Miami Project to Cure Paralysis, University of Miami, Miami, FL 33136, USA
| | - Angel Barco
- Instituto de Neurociencias, Universidad Miguel Hernandez Consejo Superior de Investigaciones Científicas, 03550 Alicante, Spain
| | - Gregoire Courtine
- Brain Mind Institute and Center for Neuroprosthetics, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1202 Geneva, Switzerland
| | - Simone Di Giovanni
- Centre for Restorative Neuroscience, Division of Brain Sciences, Department of Medicine, Imperial College London, London W12 0NN, UK. .,Hertie Institute for Clinical Brain Research, University of Tubingen, Tubingen, Germany
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28
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Knoerl R, Gilchrist L, Kanzawa-Lee GA, Donohoe C, Bridges C, Lavoie Smith EM. Proactive Rehabilitation for Chemotherapy-Induced Peripheral Neuropathy. Semin Oncol Nurs 2020; 36:150983. [DOI: 10.1016/j.soncn.2019.150983] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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29
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Chariker JH, Gomes C, Brabazon F, Harman KA, Ohri SS, Magnuson DSK, Whittemore SR, Petruska JC, Rouchka EC. Transcriptome of dorsal root ganglia caudal to a spinal cord injury with modulated behavioral activity. Sci Data 2019; 6:83. [PMID: 31175296 PMCID: PMC6555821 DOI: 10.1038/s41597-019-0088-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 04/29/2019] [Indexed: 12/30/2022] Open
Abstract
Spinal cord injury (SCI) is a devastating clinical condition resulting in significant disabilities. Apart from local injury within the spinal cord, SCI patients develop a myriad of complications including multi-organ dysfunction. Some of the dysfunctions may be directly or indirectly related to the sensory neurons of the dorsal root ganglia (DRG), which signal to both the spinal cord and the peripheral organs. After SCI, some classes of DRG neurons exhibit sensitization and undergo axonal sprouting both peripherally and centrally. Such physiological and anatomical re-organization after SCI contributes to both adaptive and maladaptive plasticity processes, which may be modulated by activity and exercise. In this study, we collected comprehensive gene expression data in whole DRG below the levels of the injury to compare the effects of SCI with and without two different forms of exercise in rats.
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Affiliation(s)
- Julia H Chariker
- Department of Neuroscience Training, University of Louisville, 522 East Gray Street, Louisville, Kentucky, 40202, USA
- Kentucky Biomedical Research Infrastructure Network Bioinformatics Core, 522 East Gray Street, Louisville, Kentucky, 40202, USA
| | - Cynthia Gomes
- Department of Anatomical Sciences and Neurobiology, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
| | - Fiona Brabazon
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Department of Neurological Surgery, University of Louisville, 220 Abraham Flexner Way, Suite 1500, Louisville, KY, 40202, USA
- Wiley Publishing, Hoboken, NJ, 07030, USA
| | - Kathryn A Harman
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Department of Health & Sport Sciences, University of Louisville, 2100 South Floyd Street, Louisville, KY, 40208, USA
| | - Sujata Saraswat Ohri
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Department of Neurological Surgery, University of Louisville, 220 Abraham Flexner Way, Suite 1500, Louisville, KY, 40202, USA
| | - David S K Magnuson
- Department of Anatomical Sciences and Neurobiology, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Department of Neurological Surgery, University of Louisville, 220 Abraham Flexner Way, Suite 1500, Louisville, KY, 40202, USA
| | - Scott R Whittemore
- Department of Anatomical Sciences and Neurobiology, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA
- Department of Neurological Surgery, University of Louisville, 220 Abraham Flexner Way, Suite 1500, Louisville, KY, 40202, USA
| | - Jeffrey C Petruska
- Department of Anatomical Sciences and Neurobiology, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA.
- Kentucky Spinal Cord Injury Research Center, University of Louisville, 511 South Floyd St., Louisville, KY, 40202, USA.
- Department of Neurological Surgery, University of Louisville, 220 Abraham Flexner Way, Suite 1500, Louisville, KY, 40202, USA.
| | - Eric C Rouchka
- Kentucky Biomedical Research Infrastructure Network Bioinformatics Core, 522 East Gray Street, Louisville, Kentucky, 40202, USA.
- Department of Computer Engineering and Computer Science, Speed School of Engineering, University of Louisville, Duthie Center for Engineering, 2301 South 3rd St., Louisville, Kentucky, 40292, USA.
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30
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Rahmati M, Kazemi A. Various exercise intensities differentially regulate GAP-43 and CAP-1 expression in the rat hippocampus. Gene 2019; 692:185-194. [PMID: 30682386 DOI: 10.1016/j.gene.2019.01.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 12/20/2018] [Accepted: 01/13/2019] [Indexed: 02/07/2023]
Abstract
Exercise intensity is known to affect neuroplasticity. Although corticosterone and lactate levels have been linked to neuroplasticity, the effect of different endurance exercise intensity-dependent production of these biochemicals on the behaviour of hippocampal growth cone markers remains incompletely explored. Here, we investigated the effects of three different endurance treadmill training episodes for six weeks on GAP-43 and CAP-1 expression in the hippocampus of adult male Wistar rats. Our findings showed that mild exercise intensity (MEI) with a lactate production slightly higher than the lactate threshold (LT) is the optimal form of physical activity for elevating GAP-43 without changing CAP-1 expression. It was further observed that high exercise intensity (HEI) with the highest level of corticosterone and lactate production, reduced GAP-43 expression, yet increased CAP-1 expression in the hippocampus. Like HEI, we further identified similar expression patterns for these markers in low exercise intensity (LEI) with blood lactate production below LT and corticosterone level similar to MEI. The findings suggested that in high-intensity exercise, the negative pattern of hippocampal neuroplasticity depends on both corticosterone and lactate levels, whereas in low-intensity exercise, the most important factor determining this negative pattern is the lactate level. Generally, MEI with a lactate production of slightly higher than LT is the most optimal intensity for improving hippocampal neuroplasticity.
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Affiliation(s)
- Masoud Rahmati
- Department of Physical Education and Sport Sciences, Faculty of Literature and Human Sciences, Lorestan University, Khorramabad, Iran.
| | - Abdolreza Kazemi
- Department of Physical Education and Sports Sciences, Faculty of Literature and Human Sciences, Vali E Asr University of Rafsanjan, Rafsanjan, Iran
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Arbat-Plana A, Puigdomenech M, Navarro X, Udina E. Role of Noradrenergic Inputs From Locus Coeruleus on Changes Induced on Axotomized Motoneurons by Physical Exercise. Front Cell Neurosci 2019; 13:65. [PMID: 30863285 PMCID: PMC6399159 DOI: 10.3389/fncel.2019.00065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 02/11/2019] [Indexed: 11/13/2022] Open
Abstract
Physical rehabilitation is one of the cornerstones for the treatment of lesions of the nervous system. After peripheral nerve injuries, activity dependent therapies promote trophic support for the paralyzed muscles, enhance axonal growth and also modulate the maladaptive plastic changes induced by the injury at the spinal level. We have previously demonstrated that an intensive protocol of treadmill running (TR) in rats reduces synaptic stripping on axotomized motoneurons, preserves their perineuronal nets (PNN) and attenuates microglia reactivity. However, it is not clear through which mechanisms exercise is exerting these effects. Here we aimed to evaluate if activation of the locus coeruleus (LC), the noradrenergic center in the brain stem, plays a role in these effects. Since LC is strongly activated during stressful situations, as during intensive exercise, we selectively destroyed the LC by administering the neurotoxin DPS-4 before injuring the sciatic nerve of adult rats. Animals without LC had increased microglia reactivity around injured motoneurons. In these animals, an increasing intensity protocol of TR was not able to prevent synaptic stripping on axotomized motoneurons and the reduction in the thickness of their PNN. In contrast, TR was still able to attenuate microglia reactivity in DSP-4 treated animals, thus indicating that the noradrenergic projections are important for some but not all the effects that exercise induces on the spinal cord after peripheral nerve injury. Moreover, animals subjected to treadmill training showed delayed muscle reinnervation, more evident if treated with DSP-4. However, we did not find differences in treated animals regarding the H/M amplitude ratio, which increased during the first stages of regeneration in all injured groups.
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Affiliation(s)
- Ariadna Arbat-Plana
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Maria Puigdomenech
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Xavier Navarro
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Esther Udina
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, Universitat Autònoma de Barcelona, Bellaterra, Spain
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Physical Exercise Attenuates Oxidative Stress and Morphofunctional Cerebellar Damages Induced by the Ethanol Binge Drinking Paradigm from Adolescence to Adulthood in Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:6802424. [PMID: 30911348 PMCID: PMC6398010 DOI: 10.1155/2019/6802424] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 11/06/2018] [Indexed: 02/07/2023]
Abstract
Ethanol (EtOH) binge drinking is characterized by high EtOH intake during few hours followed by withdrawal. Protection strategies against the damages generated by this binge are poorly explored. Thus, this study is aimed at investigating the protective role of treadmill physical exercise (PE) on the damage caused after repeated cycles of binge-like EtOH exposure in the oxidative biochemistry, morphology, and cerebellar function of rats from adolescence to adulthood. For this, animals were divided into four groups: control group (sedentary animals with doses of distilled water), exercised group (exercised animals with doses of distilled water), EtOH group (sedentary animals with doses of 3 g/kg/day of EtOH, 20% w/v), and exercised+EtOH group (exercised animals with previous mentioned doses of EtOH). The PE occurred on a running treadmill for 5 days a week for 4 weeks, and all doses of EtOH were administered through intragastric gavage in four repeated cycles of EtOH in a binge-like manner. After the EtOH protocol and PE, animals were submitted to open field and beam walking tests. In sequence, the cerebellums were collected for the biochemical and morphological analyses. Biochemical changes were analyzed by measurement of Trolox equivalent antioxidant capacity (TEAC), reduced glutathione content measurements (GSH), and measurement of nitrite and lipid peroxidation (LPO). In morphological analyses, Purkinje cell density evaluation and immunohistochemistry evaluation were measured by antimyelin basic protein (MBP) and antisynaptophysin (SYP). The present findings demonstrate that the binge drinking protocol induced oxidative biochemistry misbalance, from the decrease of TEAC levels and higher LPO related to tissue damage and motor impairment. In addition, we have shown for the first time that treadmill physical exercise reduced tissue and functional alterations displayed by EtOH exposure.
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Devanne H, Allart E. Boosting brain motor plasticity with physical exercise. Neurophysiol Clin 2019; 49:91-93. [PMID: 30686672 DOI: 10.1016/j.neucli.2019.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 01/09/2019] [Indexed: 01/12/2023] Open
Affiliation(s)
- Hervé Devanne
- EA 7369 - URePSSS - unité de recherche pluridisciplinaire sport santé société, université Littoral Côte d'Opale, université Lille, université Artois, 62228 Calais, France; Neurophysiologie clinique, CHU Lille, 59000 Lille, France.
| | - Etienne Allart
- Inserm U1171 - troubles dégénératifs cognitifs et vasculaires, université Lille, 59000 Lille, France; Rééducation neurologique, CHU Lille, 59000 Lille, France
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McGregor CE, English AW. The Role of BDNF in Peripheral Nerve Regeneration: Activity-Dependent Treatments and Val66Met. Front Cell Neurosci 2019; 12:522. [PMID: 30687012 PMCID: PMC6336700 DOI: 10.3389/fncel.2018.00522] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 12/14/2018] [Indexed: 11/29/2022] Open
Abstract
Despite the ability of peripheral nerves to spontaneously regenerate after injury, recovery is generally very poor. The neurotrophins have emerged as an important modulator of axon regeneration, particularly brain derived neurotrophic factor (BDNF). BDNF regulation and signaling, as well as its role in activity-dependent treatments including electrical stimulation, exercise, and optogenetic stimulation are discussed here. The importance of a single nucleotide polymorphism in the BDNF gene, Val66Met, which is present in 30% of the human population and may hinder the efficacy of these treatments in enhancing regeneration after injury is considered. Preliminary data are presented on the effectiveness of one such activity-dependent treatment, electrical stimulation, in enhancing axon regeneration in mice expressing the met allele of the Val66Met polymorphism.
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Affiliation(s)
- Claire Emma McGregor
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
| | - Arthur W English
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
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Sakita M, Murakami S, Fujino H, Hayashi S, Kameyama K, Saito T, Kumagai S. Remodeling of myelinated fibers and internal capillaries in distal peripheral nerves following aerobic exercise in aged rats. J Appl Physiol (1985) 2018; 125:1051-1061. [DOI: 10.1152/japplphysiol.00257.2018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to determine whether aerobic exercise (AE) in old age contributes to improving the morphologies of myelinated fibers (MFs) in peripheral nerves as well as capillaries. Furthermore, we investigated whether such processes are associated with complementary activity of brain-derived neurotrophic factor (BDNF) and vascular endothelial growth factor (VEGF) in the circulating blood and peripheral nerve tissue. Fourteen male Wistar rats (age: 95 wk) were randomly divided into moderate AE ( n = 8) and sedentary (SED; n = 6) groups. Rats in the AE group performed treadmill running for 1 h per day for 2 wk, following which the bilateral tibial nerves of the two groups were removed to examine MF and capillary structure. Levels of BDNF and VEGF in the serum and peripheral nerves were analyzed via enzyme-linked immunosorbent assay. Myelin thickness, axon diameter, and capillary luminal diameter were significantly larger in the AE group than in the SED group ( P < 0.0001). Levels of serum BDNF and VEGF were significantly lower and higher, respectively, in the AE group than in the SED group ( P < 0.001). Conversely, BDNF and VEGF levels in tibial nerve tissue were significantly higher, respectively, and lower in the AE group than in the SED group ( P < 0.001). In conclusion, our study indicates that regular AE induces enlargement of the capillaries and thickens the myelin in aged peripheral nerves, likely via a complementary process involving BDNF and VEGF. NEW & NOTEWORTHY Accumulating evidence indicates that age-related sarcopenia is accompanied by the degeneration of myelinated fibers (MFs) in peripheral nerves. Our study indicates that regular aerobic exercise contributes to increased thickness of the myelin surrounding MFs and enlargement of the capillaries, likely via a complementary process involving brain-derived neurotrophic factor and vascular endothelial growth factor. Our findings demonstrate that regular, moderate-intensity aerobic exercise may help to prevent and reverse peripheral nerve regression in older adults.
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Affiliation(s)
- Masahiro Sakita
- Faculty of Health Sciences, Department of Physical Therapy, Kyoto Tachibana University, Kyoto City, Kyoto, Japan
| | - Shinichiro Murakami
- Faculty of Health Care Sciences, Department of Physical Therapy, Himeji-Dokkyo University, Himeji City, Hyogo, Japan
| | - Hidemi Fujino
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe City, Hyogo, Japan
| | - Satoshi Hayashi
- Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama City, Okayama, Japan
| | - Kazuyoshi Kameyama
- Department of Occupational Therapy, Hakuhokai Medical Technical School Ako, Ako City, Hyogo, Japan
| | - Takafumi Saito
- Department of Physical Therapy, Aso Rehabilitation College, Hakata Ward, Fukuoka, Japan
| | - Shuzo Kumagai
- Laboratory of Health and Exercise Epidemiology, Center for Health Science and Counseling, Kyushu University, Kasuga City, Fukuoka, Japan
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Sogaard I, Ni R. Mediating Age-related Cognitive Decline through Lifestyle Activities: A Brief Review of the Effects of Physical Exercise and Sports-playing on Older Adult Cognition. ACTA PSYCHOPATHOLOGICA 2018; 4:22. [PMID: 35308579 PMCID: PMC8932955 DOI: 10.4172/2469-6676.100178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Normal aging is associated with variable declines in perception and cognition, which may be mediated through active engagement in certain lifestyle activities. The aim of this review was to discuss the relationship between cognitive functioning in older adulthood and participation in various types of physical exercise and sports-playing activities. Most studies have focused on the beneficial effects of relatively nonspecific forms of aerobic physical activity, although some emerging evidence has suggested that more specific forms of sports-playing activities may confer greater cognitive benefit in specific areas of cognitive functioning. The evidence reviewed suggests the potential for simple lifestyle-related behaviors to mediate the cognitive decline often found in older adults, and to enhance the aging brain's cognitive reserve. However, more work is needed in order to ascertain the variable outcomes of exercise type, duration, and frequency, and the cognitive effects of various sports activities.
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Affiliation(s)
| | - Rui Ni
- Corresponding author: Rui Ni, , Associate Professor, Department of Psychology, Wichita State University, Wichita, KS, USA, Tel: (316) 978-3886, Fax: (316) 978-3086
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Paddock N, Sheppard P, Gardiner P. Chronic Increases in Daily Neuromuscular Activity Promote Changes in Gene Expression in Small and Large Dorsal Root Ganglion Neurons in Rat. Neuroscience 2018; 388:171-180. [PMID: 30031124 DOI: 10.1016/j.neuroscience.2018.07.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 07/04/2018] [Accepted: 07/11/2018] [Indexed: 01/22/2023]
Abstract
The purpose of this study was to determine the response, in rat, to chronic physical activity in small and large DRG neurons. Rats were cage-confined or underwent 16-18 weeks of daily increased activity, via 2 h of treadmill running per day or free access to voluntary exercise wheels, following which small (≤30 µm) and large (≥40 µm) diameter DRG neurons were harvested by laser capture microdissection from flash-frozen lumbar DRGs. Relative mRNA levels were determined using real-time polymerase chain reaction. Following chronic treadmill and voluntary wheel exercise, gene expression responses in neurons mostly differed between exercise types. Changes in both small and large DRG neurons included increases in opioid receptor mu subunit (MOR), NGF and GAP43, and decreases in 5HT1A, TrkA, TrkB, and delta-type opioid receptor (DOR) mRNAs. In small DRG neurons, treadmill exercise increased the expression of mRNA for 5HT1D and decreased expression for 5HT1F receptors. In large DRG neurons, voluntary wheel exercise decreased the expression for 5HT1D receptors, whereas both treadmill and voluntary wheel exercise decreased the expression of mRNA for TrkC receptors. DRG neurons show slightly more changes in gene expression after voluntary exercise compared to the treadmill exercise group. Small and large lumbar sensory neurons are responsive to chronically increased neuromuscular activity by changing the expression of genes, the products of which could potentially change the sensory processing of nociceptors and proprioceptors, which could in turn alter functions such as pain transmission and locomotor coordination.
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Affiliation(s)
- Natasha Paddock
- Spinal Cord Research Center, Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Patricia Sheppard
- Spinal Cord Research Center, Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Phillip Gardiner
- Spinal Cord Research Center, Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.
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Sliwinski C, Nees TA, Puttagunta R, Weidner N, Blesch A. Sensorimotor Activity Partially Ameliorates Pain and Reduces Nociceptive Fiber Density in the Chronically Injured Spinal Cord. J Neurotrauma 2018; 35:2222-2238. [PMID: 29706124 DOI: 10.1089/neu.2017.5431] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
A large proportion of patients suffering from spinal cord injury (SCI) develop chronic central neuropathic pain. Previously, we and others have shown that sensorimotor training early after SCI can prevent the development of mechanical allodynia. To determine whether training initiated in the subchronic/chronic phase remains effective, correlates of below-level neuropathic pain were analyzed in the hindpaws 5-10 weeks after a moderate T11 contusion SCI (50 kDyn) in adult female C57BL/6 mice. In a comparison of SCI and sham mice 5 weeks post-injury, about 80% of injured animals developed mechanical hypersensitivity to light mechanical stimuli, whereas testing of noxious stimuli revealed hypo-responsiveness. Thermal sensitivity testing showed a decreased response latency after injury. Without intervention, mechanical and thermal hyper-responsiveness were evident until the end of the experiment (10 weeks). In contrast, treadmill training (2 × 15 min/day; 5 × /week) initiated 6 weeks post-injury resulted in partial amelioration of pain behavior and this effect remained stable. Analysis of calcitonin gene-related peptide (CGRP)-labeled fibers in lamina III-IV of the lumbar dorsal horn revealed an increase in labeling density after SCI. This was not due to changes in the number or size distribution of CGRP-labeled lumbar dorsal root ganglion neurons. Treadmill training reduced the CGRP-labeling density in the spinal cord of injured mice, whereas the density of non-peptidergic isolectin-B4 (IB4)+ fibers showed no changes in lamina IIi and a slight reduction of sparse IB4 labeling in laminae III-IV. Thus, sensorimotor activity initiated in the subchronic/chronic phase of SCI remains effective in ameliorating pain behavior and influencing structural changes of the nociceptive system.
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Affiliation(s)
| | - Timo A Nees
- 1 Spinal Cord Injury Center, Heidelberg University Hospital , Heidelberg, Germany .,2 Center for Orthopedic and Trauma Surgery, Heidelberg University Hospital , Heidelberg, Germany
| | - Radhika Puttagunta
- 1 Spinal Cord Injury Center, Heidelberg University Hospital , Heidelberg, Germany
| | - Norbert Weidner
- 1 Spinal Cord Injury Center, Heidelberg University Hospital , Heidelberg, Germany
| | - Armin Blesch
- 1 Spinal Cord Injury Center, Heidelberg University Hospital , Heidelberg, Germany .,3 Department of Neurological Surgery and Goodman Campbell Brain and Spine, Stark Neurosciences Research Institute, Indiana University School of Medicine , Indianapolis, Indiana
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The effects of different combinations of perceptual-motor exercises, music, and vitamin D supplementation on the nerve growth factor in children with high-functioning autism. Complement Ther Clin Pract 2018; 31:139-145. [PMID: 29705446 DOI: 10.1016/j.ctcp.2018.02.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 02/01/2018] [Indexed: 12/13/2022]
Abstract
The present study investigated the effects of different combinations of perceptual-motor exercises, music, and Vitamin D consumption on the nerve growth factor (NGF) in children with high-functioning autism. 48 children with autism, aged between six and nine years, were divided into four groups: Group A- perceptual-motor activities along with music (n = 12); Group B-Vitamin D supplementation (n = 12); Group C-perceptual-motor activities along with music and Vitamin D (n = 12); and Group D-control (n = 12). Participants' blood NGF level was measured before and after the intervention. The results showed a significant improvement in the NGF levels in Groups B and C due to the interventions. Also, in Group A, the NGF levels increased compared to Group D, although this increase was not significant. In addition, the intake of Vitamin D along with perceptual-motor exercises resulted in a significant increase in the levels of NGF compared to Groups A, B and D. These findings suggest that perceptual-motor exercises along with music as well as taking Vitamin D may provide two appropriate interventions for improving NGF in children with autism.
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Feter N, Freitas M, Gonzales N, Umpierre D, Cardoso R, Rombaldi A. Effects of physical exercise on myelin sheath regeneration: A systematic review and meta-analysis. Sci Sports 2018. [DOI: 10.1016/j.scispo.2017.06.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Vieyra-Reyes P, Oros-Pantoja R, Torres-García E, Gutiérrez-Ruiz A, Pérez-Honorato J. 67Ga as a biosensor of iron needs in different organs: Study performed on male and female rats subjected to iron deficiency and exercise. J Trace Elem Med Biol 2017; 44:93-98. [PMID: 28965608 DOI: 10.1016/j.jtemb.2017.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/24/2017] [Accepted: 06/24/2017] [Indexed: 01/13/2023]
Abstract
The aim of the present study was to determine the iron needs in different organs and tissues using 67Ga as a biosensor in males and females rats subjected to iron deficiency (ID) and voluntary exercise (EX). 67Ga citrate was injected i.p. to female and male Wistar rats (n=5/sex/group). Groups: Control (sedentary conditions), Control+EX, ID and ID+EX. To determine the 67Ga uptake, samples from the following regions of interest (ROIs) were extracted 12h post-injection: blood, liver, gonads, bone marrow, heart, adrenal glands, skeletal muscle, stomach, kidney, eyeball, sciatic nerve, small intestine and peritoneum. The total 67Ga uptake was 412% higher in ID subjects than in control subjects, being 1011% higher in ID-males than ID-females. In ID-females, the ROIs with the greater 67Ga uptake were blood, kidney and bone marrow, while in ID-males they were sciatic nerve, eyeball and adrenals, which demonstrates that the biodistribution differed between sexes in sedentary conditions but when subjected to EX, the biodistribution was similar in each sex group although females had a greater 67Ga uptake. In ID+EX subjects, the ROIs that showed the highest uptake were sciatic nerve, eyeball and adrenal glands. Using 67Ga as a biosensor, it is possible to identify the needs of iron that each organ requires to perform their functions in normal physiological conditions. In addition, a higher or lower 67Ga uptake in a specific organ may indicate its malfunction or show damage.
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Affiliation(s)
- Patricia Vieyra-Reyes
- Facultad de Medicina, Universidad Autónoma del Estado de México, Paseo Tollocan S/N esquina Jesús Carranza, Colonia Moderna de la Cruz, 50180 Toluca, Estado de México, Mexico
| | - Rigoberto Oros-Pantoja
- Facultad de Medicina, Universidad Autónoma del Estado de México, Paseo Tollocan S/N esquina Jesús Carranza, Colonia Moderna de la Cruz, 50180 Toluca, Estado de México, Mexico
| | - Eugenio Torres-García
- Facultad de Medicina, Universidad Autónoma del Estado de México, Paseo Tollocan S/N esquina Jesús Carranza, Colonia Moderna de la Cruz, 50180 Toluca, Estado de México, Mexico.
| | - Agustín Gutiérrez-Ruiz
- Facultad de Medicina, Universidad Autónoma del Estado de México, Paseo Tollocan S/N esquina Jesús Carranza, Colonia Moderna de la Cruz, 50180 Toluca, Estado de México, Mexico
| | - Jonathan Pérez-Honorato
- Facultad de Medicina, Universidad Autónoma del Estado de México, Paseo Tollocan S/N esquina Jesús Carranza, Colonia Moderna de la Cruz, 50180 Toluca, Estado de México, Mexico
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Resistance wheel exercise from mid-life has minimal effect on sciatic nerves from old mice in which sarcopenia was prevented. Biogerontology 2017; 18:769-790. [PMID: 28597407 DOI: 10.1007/s10522-017-9714-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 05/31/2017] [Indexed: 12/16/2022]
Abstract
The ability of resistance exercise, initiated from mid-life, to prevent age-related changes in old sciatic nerves, was investigated in male and female C57BL/6J mice. Aging is associated with cellular changes in old sciatic nerves and also loss of skeletal muscle mass and function (sarcopenia). Mature adult mice aged 15 months (M) were subjected to increasing voluntary resistance wheel exercise (RWE) over a period of 8 M until 23 M of age. This prevented sarcopenia in the old 23 M aged male and female mice. Nerves of control sedentary (SED) males at 3, 15 and 23 M of age, showed a decrease in the myelinated axon numbers at 15 and 23 M, a decreased g-ratio and a significantly increased proportion of myelinated nerves containing electron-dense aggregates at 23 M. Myelinated axon and nerve diameter, and axonal area, were increased at 15 M compared with 3 and 23 M. Exercise increased myelinated nerve profiles containing aggregates at 23 M. S100 protein, detected with immunoblotting was increased in sciatic nerves of 23 M old SED females, but not males, compared with 15 M, with no effect of exercise. Other neuronal proteins showed no significant alterations with age, gender or exercise. Overall the RWE had no cellular impact on the aging nerves, apart from an increased number of old nerves containing aggregates. Thus the relationship between cellular changes in aging nerves, and their sustained capacity for stimulation of old skeletal muscles to help maintain healthy muscle mass in response to exercise remains unclear.
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Yadav PK, Yadav RL, Sharma D, Shah DK, Thakur D, Limbu N, Islam MN. Nerve Conduction Study on Sural Nerve among Nepalese Tailors Using Mechanical Sewing Machine. J Clin Diagn Res 2017; 11:CC05-CC09. [PMID: 28511376 DOI: 10.7860/jcdr/2017/22814.9399] [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: 07/17/2016] [Accepted: 09/17/2016] [Indexed: 11/24/2022]
Abstract
INTRODUCTION The use of new technologies and innovations are out of access for people living in a developing country like Nepal. The mechanical sewing machine is still in existence at a large scale and dominant all over the country. Tailoring is one of the major occupations adopted by skilled people with lower socioeconomic status and education level. Sural nerves of both right and left legs are exposed to strenuous and chronic stress exerted by chronic paddling of mechanical sewing machine with legs. AIM To evaluate the influence of chronic and strenuous paddling on right and left sural nerves. MATERIALS AND METHODS The study recruited 30 healthy male tailors with median age {34(31-37.25)} years (study group), and, 30 healthy male volunteers with age {34(32-36.25)} years (control group). Anthropometric measurements (age, height, weight, BMI and length of both right and left legs) as well as cardio respiratory measurements [Systolic Blood Pressure (SBP), Dystolic Blood Pressure (DBP), Pules Rate (PR) and Respiratory Rate (RR)] were recorded for each subject. Standard nerve conduction techniques using constant measured distances were applied to evaluate sural nerve (sensory) in both legs of each individual. The differences in variables between the study and control groups were tested using Student's t-test for parametric variables and Mann-Whitney U test for nonparametric variables. A p-value of ≤ 0.05 was considered significant. RESULTS Age, height, weight, body mass index and leg length were not significantly different between tailors and control groups. Cardio respiratory measurements (SBP, DBP, PR and RR) were also not significantly altered between both the groups. The sensory nerve conduction velocities (m/s) of the right {44.23(42.72-47.83) vs 50(46- 54)} and left sural nerves {45.97±5.86 vs 50.67±6.59} m/s were found significantly reduced in tailors in comparison to control group. Similarly amplitudes (μv) of right sural (20.75±5.42 vs 24.10±5.45) and left sural nerves {18.2(12.43-21.8) vs 32.0(26.5-35.25)} were significantly less in tailors in comparison to control group whereas, latencies (ms) of right sural {2.6(2.2-2.7) vs 2.0(2.0-2.250} and left sural nerve {2.4(2.07-2.72) vs 2.0(2.0-2.0)} were found significantly high in tailors as compared with control group. CONCLUSION Operating mechanical sewing machine by paddling chronically and arduously could have attributed to abnormal nerve conduction study parameters due to vibration effect of the machine on right and left sural nerves. The results of present study follow the trend towards presymptomatic or asymptomatic neuropathy similar to subclinical neuropathy.
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Affiliation(s)
- Prakash Kumar Yadav
- Assistant Professor, Department of Physiology, Chitwan Medical College, Bharatpur, Chitwan, Nepal
| | - Ram Lochan Yadav
- Assistant Professor, Department of Physiology, Chitwan Medical College, Bharatpur, Chitwan, Nepal
| | - Deepak Sharma
- Assistant Professor, Department of Physiology, Chitwan Medical College, Bharatpur, Chitwan, Nepal
| | - Dev Kumar Shah
- Assistant Professor, Department of Physiology, Chitwan Medical College, Bharatpur, Chitwan, Nepal
| | - Dilip Thakur
- Additional Professor, Department of Physiology, BP Koirala Institute of Health Sciences, Dharan, Sunsari, Nepal
| | - Nirmala Limbu
- Additional Professor, Department of Physiology, BP Koirala Institute of Health Sciences, Dharan, Sunsari, Nepal
| | - Md Nazrul Islam
- Professor, Department of Physiology, Chitwan Medical College, Bharatpur, Chitwan, Nepal
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Theisen CC, Sachdeva R, Austin S, Kulich D, Kranz V, Houle JD. Exercise and Peripheral Nerve Grafts as a Strategy To Promote Regeneration after Acute or Chronic Spinal Cord Injury. J Neurotrauma 2017; 34:1909-1914. [PMID: 28437223 DOI: 10.1089/neu.2016.4640] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Therapeutic interventions after spinal cord injury (SCI) routinely are designed to address multiple aspects of the primary and/or secondary damage that occurs. Exercise has a demonstrated efficacy for post-SCI complications such as cardiovascular dysfunction, neuropathic pain, and chronic inflammation, yet there is little understanding of the mechanisms by which improvements might result from this non-invasive approach. Here we review several of our observations of molecular and cellular changes within the injured spinal cord following acute or delayed exercise regimens that illustrate the potential for positive effects on neuroprotection and rehabilitation. Further, we provide new information about the role of exercise in promoting the regeneration of spinal axons into peripheral nerve grafts (PNGs) placed immediately or 6 weeks after injury. Acute and chronically injured propriospinal neurons within the lumbar spinal cord displayed the greatest propensity for enhanced regeneration after exercise, which correlates with the direct sensory input to this region from exercised hindlimb muscles. Future studies will extend these observations by testing whether exercise will boost the regenerative effort of axons to extend beyond the graft, interact with intraspinal targets, and establish functional connections across a lesion.
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Affiliation(s)
- Catherine C Theisen
- 1 Department of Neurobiology and Anatomy, Drexel Spinal Cord Research Center, Drexel University College of Medicine , Philadelphia, Pennsylvania
| | - Rahul Sachdeva
- 2 University of British Columbia , Autonomic Research Laboratory, International Collaboration on Repair Discoveries (ICORD), Vancouver, British Columbia, Canada
| | - Scarlett Austin
- 1 Department of Neurobiology and Anatomy, Drexel Spinal Cord Research Center, Drexel University College of Medicine , Philadelphia, Pennsylvania
| | - Danielle Kulich
- 1 Department of Neurobiology and Anatomy, Drexel Spinal Cord Research Center, Drexel University College of Medicine , Philadelphia, Pennsylvania
| | - Victoria Kranz
- 1 Department of Neurobiology and Anatomy, Drexel Spinal Cord Research Center, Drexel University College of Medicine , Philadelphia, Pennsylvania
| | - John D Houle
- 1 Department of Neurobiology and Anatomy, Drexel Spinal Cord Research Center, Drexel University College of Medicine , Philadelphia, Pennsylvania
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Abstract
Exercise is known to exert a systemic anti-inflammatory influence, but whether its effects are sufficient to protect against subsequent neuropathic pain is underinvestigated. We report that 6 weeks of voluntary wheel running terminating before chronic constriction injury (CCI) prevented the full development of allodynia for the ∼3-month duration of the injury. Neuroimmune signaling was assessed at 3 and 14 days after CCI. Prior exercise normalized ipsilateral dorsal spinal cord expression of neuroexcitatory interleukin (IL)-1β production and the attendant glutamate transporter GLT-1 decrease, as well as expression of the disinhibitory P2X4R-BDNF axis. The expression of the macrophage marker Iba1 and the chemokine CCL2 (MCP-1), and a neuronal injury marker (activating transcription factor 3), was attenuated by prior running in the ipsilateral lumbar dorsal root ganglia. Prior exercise suppressed macrophage infiltration and/or injury site proliferation, given decreased presence of macrophage markers Iba1, iNOS (M1), and Arg-1 (M2; expression was time dependent). Chronic constriction injury-driven increases in serum proinflammatory chemokines were suppressed by prior running, whereas IL-10 was increased. Peripheral blood mononuclear cells were also stimulated with lipopolysaccharide ex vivo, wherein CCI-induced increases in IL-1β, nitrite, and IL-10 were suppressed by prior exercise. Last, unrestricted voluntary wheel running, beginning either the day of, or 2 weeks after, CCI, progressively reversed neuropathic pain. This study is the first to investigate the behavioral and neuroimmune consequences of regular exercise terminating before nerve injury. This study suggests that chronic pain should be considered a component of "the diseasome of physical inactivity," and that an active lifestyle may prevent neuropathic pain.
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Cobianchi S, Arbat-Plana A, López-Álvarez VM, Navarro X. Neuroprotective Effects of Exercise Treatments After Injury: The Dual Role of Neurotrophic Factors. Curr Neuropharmacol 2017; 15:495-518. [PMID: 27026050 PMCID: PMC5543672 DOI: 10.2174/1570159x14666160330105132] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 02/19/2016] [Accepted: 03/03/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Shared connections between physical activity and neuroprotection have been studied for decades, but the mechanisms underlying this effect of specific exercise were only recently brought to light. Several evidences suggest that physical activity may be a reasonable and beneficial method to improve functional recovery in both peripheral and central nerve injuries and to delay functional decay in neurodegenerative diseases. In addition to improving cardiac and immune functions, physical activity may represent a multifunctional approach not only to improve cardiocirculatory and immune functions, but potentially modulating trophic factors signaling and, in turn, neuronal function and structure at times that may be critical for neurodegeneration and regeneration. METHODS Research content related to the effects of physical activity and specific exercise programs in normal and injured nervous system have been reviewed. RESULTS Sustained exercise, particularly if applied at moderate intensity and early after injury, exerts anti-inflammatory and pro-regenerative effects, and may boost cognitive and motor functions in aging and neurological disorders. However, newest studies show that exercise modalities can differently affect the production and function of brain-derived neurotrophic factor and other neurotrophins involved in the generation of neuropathic conditions. These findings suggest the possibility that new exercise strategies can be directed to nerve injuries with therapeutical benefits. CONCLUSION Considering the growing burden of illness worldwide, understanding of how modulation of neurotrophic factors contributes to exercise-induced neuroprotection and regeneration after peripheral nerve and spinal cord injuries is a relevant topic for research, and represents the beginning of a new non-pharmacological therapeutic approach for better rehabilitation of neural disorders.
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Affiliation(s)
- Stefano Cobianchi
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autonoma de Barcelona, Bellaterra, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain
| | - Ariadna Arbat-Plana
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autonoma de Barcelona, Bellaterra, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain
| | - Víctor M. López-Álvarez
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autonoma de Barcelona, Bellaterra, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain
| | - Xavier Navarro
- Department of Cell Biology, Physiology and Immunology, Institute of Neurosciences, Universitat Autonoma de Barcelona, Bellaterra, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Bellaterra, Spain
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Early-onset treadmill training reduces mechanical allodynia and modulates calcitonin gene-related peptide fiber density in lamina III/IV in a mouse model of spinal cord contusion injury. Pain 2016; 157:687-697. [PMID: 26588690 DOI: 10.1097/j.pain.0000000000000422] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Below-level central neuropathic pain (CNP) affects a large proportion of spinal cord injured individuals. To better define the dynamic changes of the spinal cord neural network contributing to the development of CNP after spinal cord injury (SCI), we characterized the morphological and behavioral correlates of CNP in female C57BL/6 mice after a moderate T11 contusion SCI (50 kdyn) and the influence of moderate physical activity. Compared with sham-operated animals, injured mice developed mechanical allodynia 2 weeks post injury when tested with small-diameter von Frey hair filaments (0.16 g and 0.4 g filament), but presented hyporesponsiveness to noxious mechanical stimuli (1.4 g filament). The mechano-sensory alterations lasted up to 35 days post injury, the longest time point examined. The response latency to heat stimuli already decreased significantly 10 days post injury reaching a plateau 2 weeks later. In contrast, injured mice developed remarkable hyposensitivity to cold stimuli. Animals that underwent moderate treadmill training (2 × 15 minutes; 5 d/wk) showed a significant reduction in the response rate to light mechanical stimuli as early as 6 days after training. Calcitonin gene-related peptide (CGRP) labeling in lamina III-IV of the dorsal horn revealed significant increases in CGRP-labeling density in injured animals compared with sham control animals. Importantly, treadmill training reduced CGRP-labeling density by about 50% (P < 0.01), partially reducing the injury-induced increases. Analysis of IB4-labeled nonpeptidergic sensory fibers revealed no differences between experimental groups. Abnormalities in temperature sensation were not influenced by physical activity. Thus, treadmill training partially resolves signs of below-level CNP after SCI and modulates the density of CGRP-labeled fibers.
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Cooper MA, Kluding PM, Wright DE. Emerging Relationships between Exercise, Sensory Nerves, and Neuropathic Pain. Front Neurosci 2016; 10:372. [PMID: 27601974 PMCID: PMC4993768 DOI: 10.3389/fnins.2016.00372] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 08/02/2016] [Indexed: 01/09/2023] Open
Abstract
The utilization of physical activity as a therapeutic tool is rapidly growing in the medical community and the role exercise may offer in the alleviation of painful disease states is an emerging research area. The development of neuropathic pain is a complex mechanism, which clinicians and researchers are continually working to better understand. The limited therapies available for alleviation of these pain states are still focused on pain abatement and as opposed to treating underlying mechanisms. The continued research into exercise and pain may address these underlying mechanisms, but the mechanisms which exercise acts through are still poorly understood. The objective of this review is to provide an overview of how the peripheral nervous system responds to exercise, the relationship of inflammation and exercise, and experimental and clinical use of exercise to treat pain. Although pain is associated with many conditions, this review highlights pain associated with diabetes as well as experimental studies on nerve damages-associated pain. Because of the global effects of exercise across multiple organ systems, exercise intervention can address multiple problems across the entire nervous system through a single intervention. This is a double-edged sword however, as the global interactions of exercise also require in depth investigations to include and identify the many changes that can occur after physical activity. A continued investment into research is necessary to advance the adoption of physical activity as a beneficial remedy for neuropathic pain. The following highlights our current understanding of how exercise alters pain, the varied pain models used to explore exercise intervention, and the molecular pathways leading to the physiological and pathological changes following exercise intervention.
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Affiliation(s)
- Michael A Cooper
- Department of Anatomy and Cell Biology, University of Kansas Medical Center Kansas City, KS, USA
| | - Patricia M Kluding
- Department of Physical Therapy and Rehabilitation Science, University of Kansas Medical Center Kansas City, KS, USA
| | - Douglas E Wright
- Department of Anatomy and Cell Biology, University of Kansas Medical Center Kansas City, KS, USA
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