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Therapy of spinal cord injury

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https://www.readbyqxmd.com/read/29146456/is-more-always-better-how-different-doses-of-exercise-after-incomplete-spinal-cord-injury-affects-the-membrane-properties-of-deep-dorsal-horn-interneurons
#1
M M Rank, M P Galea, R Callister, R J Callister
Interneurons in the deep dorsal horn (DDH) of the spinal cord process somatosensory input, and form an important link between upper and lower motoneurons to subsequently shape motor output. Exercise training after SCI is known to improve functional motor recovery, but little is known about the mechanisms within spinal cord neurons that underlie these improvements. Here we investigate how the properties of DDH interneurons are affected by spinal cord injury (SCI) alone, and SCI in combination with different 'doses' of treadmill exercise training (3, 6, and 9wks)...
November 13, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/29143997/epidermal-neural-crest-stem-cell-derived-glia-enhance-neurotrophic-elements-in-an-ex-vivo-model-of-spinal-cord-injury
#2
Sareh Pandamooz, Mohammad Saied Salehi, Mohammad Ismail Zibaii, Abolhassan Ahmadiani, Mohammad Nabiuni, Leila Dargahi
Growing evidence that cell-based therapies can improve recovery outcome in spinal cord injury (SCI) models substantiates their application for treatment of human with SCI. To address the effectiveness of these stem cells, potential candidates should be evaluated in proper SCI platform that allows direct real-time monitoring. In this study, the role of epidermal neural crest stem cells (EPI-NCSCs) was elucidated in an ex vivo model of SCI and valproic acid (VPA) was administered to ameliorate the inhospitable context of injury for grafted EPI-NCSCs...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29141498/incidence-and-natural-progression-of-neurogenic-shock-following-traumatic-spinal-cord-injury
#3
Ian A Ruiz, Jordan W Squair, Aaron A Phillips, Christine D Lukac, Dayan Huang, Patrick Oxciano, Dong Yan, Andrei V Krassioukov
Neurogenic shock, a distributive type of circulatory shock following spinal cord injury (SCI), results in profound hypotension. The consequent hemodynamic instability complicates clinical management, delays surgical intervention, and impacts neurological outcome. Moreover, the reported incidence of this condition varies significantly. Here, we establish the true incidence of neurogenic shock by comparing the most common clinical definitions used to diagnose the condition. Further, we characterize the acute progression and recovery of neurogenic shock...
November 15, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29137141/steroid-and-xenobiotic-receptor-signalling-in-apoptosis-and-autophagy-of-the-nervous-system
#4
REVIEW
Agnieszka Wnuk, Małgorzata Kajta
Apoptosis and autophagy are involved in neural development and in the response of the nervous system to a variety of insults. Apoptosis is responsible for cell elimination, whereas autophagy can eliminate the cells or keep them alive, even in conditions lacking trophic factors. Therefore, both processes may function synergistically or antagonistically. Steroid and xenobiotic receptors are regulators of apoptosis and autophagy; however, their actions in various pathologies are complex. In general, the estrogen (ER), progesterone (PR), and mineralocorticoid (MR) receptors mediate anti-apoptotic signalling, whereas the androgen (AR) and glucocorticoid (GR) receptors participate in pro-apoptotic pathways...
November 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29133968/effects-of-laser-therapy-and-grimaldi-s-muscle-shortening-manoeuvre-on-motor-control-of-subjects-with-incomplete-spinal-cord-injuries
#5
Diego Longo, Leonardo Longo, Paolo Lippi, Giulio Cherubini, Vanessa Mangé
Background and Objectives: From year 2003 we treated positively 251 patients with Traumatic Spinal Cord Injuries (TSCI), using Non-Surgical Laser Therapy (NSLT). In order to increase muscle strength, we have also started using a physical therapy practice called Grimaldi's Muscle Shortening Manoeuvre (GMSM)The goal of our study is to obtain objective data suggesting the real effectiveness of the association of these two treatments. Study Design and Methods: In 2015, 10 patients with incomplete TSCI were enrolled...
September 30, 2017: Laser Therapy
https://www.readbyqxmd.com/read/29132543/intravenous-administration-of-functionalized-magnetic-iron-oxide-nanoparticles-does-not-induce-cns-injury-in-the-rat-influence-of-spinal-cord-trauma-and-cerebrolysin-treatment
#6
Preeti K Menon, Aruna Sharma, José V Lafuente, Dafin F Muresanu, Zoraida P Aguilar, Y Anderw Wang, Ranjana Patnaik, Herbert Mössler, Hari S Sharma
Influence of iron oxide magnetic nanoparticles (IOMNPs, 10nm in diameter, 0.25 or 0.50mg/mL in 100μL, i.v.) on the blood-brain barrier (BBB) permeability, edema formation, and neuronal or glial changes within 4-24h after administration was examined in normal rats and after a focal spinal cord injury (SCI). Furthermore, effect of cerebrolysin, a balanced composition of several neurotrophic factors, and active peptide fragments was also evaluated on IOMNP-induced changes in central nervous system (CNS) pathology...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/29125510/regenerative-medicine-and-spina-bifida-recent-developments-in-induced-fetal-regeneration
#7
Dario O Fauza
Regenerative medicine as it applies to spina bifida is a multi-pronged endeavor involving spinal cord repair, tissue engineering and fetal regeneration, all of which can mutually overlap to variable extents. The efforts involving spinal cord repair, whether they be cell-based or not, are virtually indistinguishable from the enormous body of work related to spinal cord recovery after traumatic injury. Tissue engineering, on the other hand, can involve a variety of structures besides constructs used for covering the spina bifida defect, for example the urinary bladder, bone, muscle and skin...
October 20, 2017: Journal of Pediatric Rehabilitation Medicine
https://www.readbyqxmd.com/read/29121057/trafficking-and-processing-of-bacterial-proteins-by-mammalian-cells-insights-from-chondroitinase-abc
#8
Elizabeth Muir, Mansoor Raza, Clare Ellis, Emily Burnside, Fiona Love, Simon Heller, Matthew Elliot, Esther Daniell, Debayan Dasgupta, Nuno Alves, Priscilla Day, James Fawcett, Roger Keynes
BACKGROUND: There is very little reported in the literature about the relationship between modifications of bacterial proteins and their secretion by mammalian cells that synthesize them. We previously reported that the secretion of the bacterial enzyme Chondroitinase ABC by mammalian cells requires the strategic removal of at least three N-glycosylation sites. The aim of this study was to determine if it is possible to enhance the efficacy of the enzyme as a treatment for spinal cord injury by increasing the quantity of enzyme secreted or by altering its cellular location...
2017: PloS One
https://www.readbyqxmd.com/read/29118921/resveratrol-improves-neuron-protection-and-functional-recovery-through-enhancement-of-autophagy-after-spinal-cord-injury-in-mice
#9
Jinquan Hu, Hui Han, Peng Cao, Wenchao Yu, Chen Yang, Yang Gao, Wen Yuan
Resveratrol (Res), a natural phenolic compound, has been proven to have a wide variety of beneficial health effects. For example, resveratrol has neuroprotective effects in different central nervous system diseases. However, the mechanisms underlying resveratrol neuroprotection in spinal cord injury (SCI) remain unclear. In this study, we showed that resveratrol treatment improved the restoration of locomotor function, and decreased the degeneration of neurons in SCI mice, which was paralleled by a reduction of apoptosis...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29118209/in-vivo-imaging-of-cns-injury-and-disease
#10
Katerina Akassoglou, Mario Merlini, Victoria A Rafalski, Raquel Real, Liang Liang, Yunju Jin, Sarah E Dougherty, Vincenzo De Paola, David J Linden, Thomas Misgeld, Binhai Zheng
In vivo optical imaging has emerged as a powerful tool with which to study cellular responses to injury and disease in the mammalian CNS. Important new insights have emerged regarding axonal degeneration and regeneration, glial responses and neuroinflammation, changes in the neurovascular unit, and, more recently, neural transplantations. Accompanying a 2017 SfN Mini-Symposium, here, we discuss selected recent advances in understanding the neuronal, glial, and other cellular responses to CNS injury and disease with in vivo imaging of the rodent brain or spinal cord...
November 8, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29113923/effects-of-spinal-non-viral-interleukin-10-gene-therapy-formulated-with-d-mannose-in-neuropathic-interleukin-10-deficient-mice-behavioral-characterization-mrna-and-protein-analysis-in-pain-relevant-tissues
#11
Arden G Vanderwall, Shahani Noor, Melody S Sun, Jacob E Sanchez, Xuexian O Yang, Lauren L Jantzie, Nikolaos Mellios, Erin D Milligan
Studies show that spinal (intrathecal; i.t.) interleukin-10 (IL-10) gene therapy reverses neuropathic pain in animal models, and co-administration with the mannose receptor (MR; CD206) ligand d-mannose (DM) greatly improves therapeutic efficacy. However, the actions of endogenous IL-10 may be required for enduring pain control observed following i.t. IL-10 gene therapy, potentially narrowing the application of this non-viral transgene delivery approach. Here, we show that i.t. application of naked plasmid DNA expressing the IL-10 transgene co-injected with DM (DM/pDNA-IL-10) for the treatment of peripheral neuropathic pain in IL-10 deficient (IL-10 KO) mice results in a profound and prolonged bilateral pain suppression...
November 4, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29109741/functional-test-scales-for-evaluating-cell-based-therapies-in-animal-models-of-spinal-cord-injury
#12
REVIEW
Woon Ryoung Kim, Minjin Kang, Heejoo Park, Hyun-Joo Ham, Hyunji Lee, Dongho Geum
Recently, spinal cord researchers have focused on multifaceted approaches for the treatment of spinal cord injury (SCI). However, as there is no cure for the deficits produced by SCI, various therapeutic strategies have been examined using animal models. Due to the lack of standardized functional assessment tools for use in such models, it is important to choose a suitable animal model and precise behavioral test when evaluating the efficacy of potential SCI treatments. In the present review, we discuss recent evidence regarding functional recovery in various animal models of SCI, summarize the representative models currently used, evaluate recent cell-based therapeutic approaches, and aim to identify the most precise and appropriate scales for functional assessment in such research...
2017: Stem Cells International
https://www.readbyqxmd.com/read/29109234/maresin-1-promotes-inflammatory-resolution-neuroprotection-and-functional-neurological-recovery-after-spinal-cord-injury
#13
Isaac Francos Quijorna, Eva Santos-Nogueira, Karsten Gronert, Aaron B Sullivan, Marcel A Kopp, Benedikt Brommer, Samuel David, Jan M Schwab, Ruben Lopez Vales
Resolution of inflammation is defective after spinal cord injury (SCI), which impairs tissue integrity and remodelling, and leads to functional deficits. Effective treatments for SCI are not currently available. Maresin 1 (MaR1) is a highly conserved specialized pro-resolving mediators (SPM) hosting potent anti-inflammatory and pro-resolving properties with potent tissue regenerative actions. Here, we provide evidence that the inappropriate biosynthesis of SPM in the lesioned spinal cord hampers the resolution of inflammation and leads to deleterious consequences on neurological outcome in adult female mice...
November 3, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29108487/a-clinically-meaningful-training-effect-in-walking-speed-using-functional-electrical-stimulation-for-motor-incomplete-spinal-cord-injury
#14
Tamsyn Street, Christine Singleton
CONTEXT/OBJECTIVE: The study aimed to investigate the presence of a training effect for rehabilitation of walking function in motor-incomplete spinal cord injury (SCI) through daily use of functional electrical stimulation (FES). SETTING: A specialist FES outpatient centre Participants: Thirty-five participants (mean age 53, SD 15, range 18-80; mean years since diagnosis 9, range 5 months - 39 years) with drop foot and motor-incomplete SCI (T12 or higher, ASIA Impairment Scale C and D) able to ambulate 10 metres with the use of a walking stick or frame...
November 6, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29107040/longitudinal-recovery-and-reduced-costs-after-120-sessions-of-locomotor-training-for-motor-incomplete-spinal-cord-injury
#15
Sarah A Morrison, Douglas Lorenz, Carol P Eskay, Gail F Forrest, D Michele Basso
OBJECTIVE: To determine the impact of long term, body weight supported locomotor training (BWSLT) after chronic, incomplete spinal cord injury (SCI). Also, health care costs were estimated related to lost recovery potential and preventable secondary complications that may have occurred due to visit limits imposed by insurers. DESIGN: Prospective observational cohort with longitudinal follow up. SETTING: Eight outpatient rehabilitation centers that participate in the Christopher & Dana Reeve Foundation NeuroRecovery Network® (NRN)...
October 26, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29101071/subarachnoid-to-subarachnoid-shunt-for-correction-of-nonfunctioning-baclofen-pump-in-a-severe-case-of-chronic-debilitating-post-spinal-cord-injury-spasticity
#16
Adewale A Bakare, Jonathan Weyhenmeyer, Albert Lee
BACKGROUND AND IMPORTANCE: Perhaps the most disabling condition seen in patients with spinal cord injury is spasticity. Spasticity is characterized as hyperreflexia and hypertonicity as a result of damage to the supraspinal tracts in the aftermath of SCI. Intrathecal baclofen (ITB) is the mainstay therapy for spasticity unresponsive to oral baclofen. One of the problems associated with post-SCI spasticity unresponsive to ITB is development of scar tissue that prevents the diffusion of baclofen in the desired spinal cord area...
October 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29099679/photobiomodulation-in-neuroscience-a-summary-of-personal-experience
#17
Shimon Rochkind
OBJECTIVE: This review summarizes personal experience with laser photobiomodulation and its potentials for the treatment of peripheral and central nerve system injuries. METHODS AND RESULTS: Laser photobiomodulation was shown to induce nerve cell activation, have a positive effect on metabolism of the nerve cells, and to stimulate nerve sprouting processes. Studies investigating the effects of laser photobiomodulation on injured peripheral nerves in rats reported immediate protective effects which increase the functional activity of the nerve, decrease or prevent scar tissue formation at the injured site, prevent or decrease degeneration in corresponding motor neurons of the spinal cord, and significantly increase axonal growth and myelinization...
November 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29095439/epothilone-b-impairs-functional-recovery-after-spinal-cord-injury-by-increasing-secretion-of-macrophage-colony-stimulating-factor
#18
Liang Mao, Wei Gao, Shurui Chen, Ying Song, Changwei Song, Zipeng Zhou, Haosen Zhao, Kang Zhou, Wei Wang, Kunming Zhu, Chang Liu, Xifan Mei
The microtubule-stabilizing drug epothilone B (epoB) has shown potential value in the treatment of spinal cord injury (SCI) through diverse mechanisms. However, it remains elusive why a limited overall effect was observed. We aim to investigate the limiting factors underlying functional recovery promoted by epoB. The same SCI model treated by epoB was established as discussed previously. We used a cerebrospinal fluid (CSF) sample to assess the changes in cytokines in milieu of the SCI lesion site after epoB treatment...
November 2, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29093168/strategies-to-augment-volitional-and-reflex-function-may-improve-locomotor-capacity-following-incomplete-spinal-cord-injury
#19
Kristan A Leech, Hyosub E Kim, Thomas George Hornby
Many studies highlight the remarkable plasticity demonstrated by spinal circuits following an incomplete spinal cord injury (SCI). Such plasticity can contribute to improvements in volitional motor recovery, such as walking function, although similar mechanisms underlying this recovery may also contribute to the manifestation of exaggerated responses to afferent input, or spastic behaviors. Rehabilitation interventions directed towards augmenting spinal excitability have shown some initial success in improving locomotor function...
November 1, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29089975/autonomic-dysreflexia-a-cardiovascular-disorder-following-spinal-cord-injury
#20
REVIEW
Hisham Sharif, Shaoping Hou
Autonomic dysreflexia (AD) is a serious cardiovascular disorder in patients with spinal cord injury (SCI). The primary underlying cause of AD is loss of supraspinal control over sympathetic preganglionic neurons (SPNs) caudal to the injury, which renders the SPNs hyper-responsive to stimulation. Central maladaptive plasticity, including C-fiber sprouting and propriospinal fiber proliferation exaggerates noxious afferent transmission to the SPNs, causing them to release massive sympathetic discharges that result in severe hypertensive episodes...
September 2017: Neural Regeneration Research
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