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Spinal cord injuries AND Driving

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https://www.readbyqxmd.com/read/28629465/natural-igm-antibodies-that-bind-neoepitopes-exposed-as-a-result-of-spinal-cord-injury-drive-secondary-injury-by-activating-complement
#1
Aarti Narang, Fei Qiao, Carl Atkinson, Hong Zhu, Xiaofeng Yang, Liudmila Kulik, V Michael Holers, Stephen Tomlinson
BACKGROUND: Natural IgM antibodies (Abs) function as innate immune sensors of injury via recognition of neoepitopes expressed on damaged cells, although how this recognition systems function following spinal cord injury (SCI) exposes various neoepitopes and their precise nature remains largely unknown. Here, we investigated the role of two natural IgM monoclonal Abs (mAbs), B4 and C2, that recognize post-ischemic neoepitopes following ischemia and reperfusion in other tissues. METHODS: Identification of post-SCI expressed neoepitopes was examined using previously characterized monoclonal Abs (B4 and C2 mAbs)...
June 19, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28627589/effect-of-the-spinal-apelin%C3%A2-apj-system-on-the-pathogenesis-of-chronic-constriction-injury%C3%A2-induced-neuropathic-pain-in-rats
#2
Qingming Xiong, Wanyou He, Hanbing Wang, Jun Zhou, Yajun Zhang, Jian He, Chengxiang Yang, Bin Zhang
Apelin is hypothesized to serve a dual function in pain processing. Spinal administration of apelin induces hyperalgesia, while opioid receptors are implicated in the antinociceptive effects of apelin in acute nociceptive models. However, whether the apelin‑apelin receptor (APJ) system is involved in neuropathic pain remains to be elucidated. The present study aimed to evaluate the impact and mechanism of the spinal apelin‑APJ system in neuropathic pain. Chronic constriction injury (CCI) of the sciatic nerve produced sustained spinal apelin and APJ upregulation, which was associated with mechanical allodynia and heat hyperalgesia development in the hind‑paw plantar surface...
June 9, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28566019/using-evidence-to-inform-practice-and-policy-to-enhance-the-quality-of-care-for-persons-with-traumatic-spinal-cord-injury
#3
Michael G Fehlings, Christiana L Cheng, Elaine Chan, Nancy P Thorogood, Vanessa K Noonan, Henry Ahn, Christopher Bailey, Anoushka Singh, Marcel F Dvorak
In today's economic climate there is a need to demonstrate a return on investment for healthcare spending and for clinical practice and policy to be informed by evidence. Navigating this process is difficult for decision-makers, clinicians and researchers alike. This article will describe how a knowledge translation framework and an evidence-based policy-making process were integrated to clarify the problem, frame options, and plan implementation, to impact clinical practice and policy in the area of traumatic spinal cord injury (tSCI)...
May 31, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28539892/the-cross-education-phenomenon-brain-and-beyond
#4
Ashlee M Hendy, Séverine Lamon
Objectives: Unilateral resistance training produces strength gains in the untrained homologous muscle group, an effect termed "cross-education." The observed strength transfer has traditionally been considered a phenomenon of the nervous system, with few studies examining the contribution of factors beyond the brain and spinal cord. In this hypothesis and theory article, we aim to discuss further evidence for structural and functional adaptations occurring within the nervous, muscle, and endocrine systems in response to unilateral resistance training...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28484526/spinal-injury-resulting-from-car-accident-focus-to-prevention
#5
Esmaeil Fakharian, Mahdi Mohammadzadeh, Hamid Reza Saberi, Mohammad Reza Fazel, Mohsen Rejali, Hossein Akbari, Azadeh Sadat Mirzadeh, Javad Mohammadzadeh
AIM: To determine and compare the patterns of spinal injury in car occupants. MATERIALS AND METHODS: Retrospective cross-sectional study enrolling all patients with spinal fracture after car accidents, who were admitted to hospital more than 24 h during 2004-2009. RESULTS: The lumbosacral spine was the most commonly involved region (64.8). Six patients had spinal cord injury (6.6%). The majority of the victims were drivers of the vehicle (86...
April 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28400720/superparamagnetic-iron-oxide-nanoparticle-mediated-forces-enhance-the-migration-of-schwann-cells-across-the-astrocyte-schwann-cell-boundary-in-vitro
#6
Liangliang Huang, Bing Xia, Zhongyang Liu, Quanliang Cao, Jinghui Huang, Zhuojing Luo
Schwann cells (SCs) are one of the most promising cellular candidates for the treatment of spinal cord injury. However, SCs show poor migratory ability within the astrocyte-rich central nervous system (CNS) environment and exhibit only limited integration with host astrocytes. Our strategy for improving the therapeutic potential of SCs was to magnetically drive SCs to migrate across the astrocyte-SC boundary to intermingle with astrocytes. SCs were firstly magnetized with poly-L-lysine-coated superparamagnetic iron oxide nanoparticles (SPIONs)...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28389264/the-bulbospinal-network-controlling-the-phrenic-motor-system-laterality-and-course-of-descending-projections
#7
REVIEW
Michael George Zaki Ghali
The respiratory rhythm is generated by the parafacial respiratory group, Bötzinger complex, and pre-Bötzinger complex and relayed to pre-motor neurons, which in turn project to and control respiratory motor outputs in the brainstem and spinal cord. The phrenic nucleus is one such target, containing phrenic motoneurons (PhMNs), which supply the diaphragm, the primary inspiratory muscle in mammals. While some investigators have demonstrated both ipsi- and contralateral bulbophrenic projections, there exists controversy regarding the relative physiological contribution of each to phasic and tonic drive to PhMNs and at which levels decussations occur...
April 4, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28269706/a-stimulation-driven-exoskeleton-for-walking-after-paraplegia
#8
Sarah R Chang, Mark J Nandor, Lu Li, Kevin M Foglyano, John R Schnellenberger, Rudi Kobetic, Roger D Quinn, Ronald J Triolo
An untethered version of a stimulation-driven exoskeleton was evaluated for its ability to restore walking after paralysis from spinal cord injury. The hybrid neuroprosthesis (HNP) combined a passive variable-constraint exoskeleton for stability and support with functional neuromuscular stimulation (FNS) to contract the paralyzed muscles to drive limb movement. This self-contained HNP was operated by an onboard controller that sampled sensor signals, generated appropriate commands to both the exoskeletal constraints and integrated stimulator, and transmitted data wirelessly via Bluetooth to an off-board computer for real-time monitoring and recording for offline analysis...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227967/a-stimulation-driven-exoskeleton-for-walking-after-paraplegia
#9
Sarah R Chang, Mark J Nandor, Lu Li, Kevin M Foglyano, John R Schnellenberger, Rudi Kobetic, Roger D Quinn, Ronald J Triolo, Sarah R Chang, Mark J Nandor, Lu Li, Kevin M Foglyano, John R Schnellenberger, Rudi Kobetic, Roger D Quinn, Ronald J Triolo, Mark J Nandor, Rudi Kobetic, Roger D Quinn, John R Schnellenberger, Sarah R Chang, Kevin M Foglyano, Lu Li, Ronald J Triolo
An untethered version of a stimulation-driven exoskeleton was evaluated for its ability to restore walking after paralysis from spinal cord injury. The hybrid neuroprosthesis (HNP) combined a passive variable-constraint exoskeleton for stability and support with functional neuromuscular stimulation (FNS) to contract the paralyzed muscles to drive limb movement. This self-contained HNP was operated by an onboard controller that sampled sensor signals, generated appropriate commands to both the exoskeletal constraints and integrated stimulator, and transmitted data wirelessly via Bluetooth to an off-board computer for real-time monitoring and recording for offline analysis...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28213202/determinants-of-cough-effectiveness-in-patients-with-respiratory-muscle-weakness
#10
Franco Laghi, Veeranna Maddipati, Timothy Schnell, W Edwin Langbein, Martin J Tobin
Experiments were undertaken to mechanistically define expiratory-muscle contribution to effectiveness of cough while controlling glottic movement. We hypothesized that electrical abdominal-muscle stimulation in patients with respiratory-muscle weakness produces effective coughs only when glottic closure accompanies coughs. In ten spinal-cord-injury patients, esophago-gastric pressure and airflow were recorded during solicited-coughs, coughs augmented by abdominal-muscle stimulation, and passive open-glottis exhalations...
June 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28197342/the-function-of-fgfr1-signalling-in-the-spinal-cord-therapeutic-approaches-using-fgfr1-ligands-after-spinal-cord-injury
#11
REVIEW
Barbara Haenzi, Lawrence D F Moon
Extensive research is ongoing that concentrates on finding therapies to enhance CNS regeneration after spinal cord injury (SCI) and to cure paralysis. This review sheds light on the role of the FGFR pathway in the injured spinal cord and discusses various therapies that use FGFR activating ligands to promote regeneration after SCI. We discuss studies that use peripheral nerve grafts or Schwann cell grafts in combination with FGF1 or FGF2 supplementation. Most of these studies show evidence that these therapies successfully enhance axon regeneration into the graft...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28117331/early-spermatogenesis-changes-in-traumatic-complete-spinal-cord-injured-adult-patients
#12
A Sánchez-Ramos, E Vargas-Baquero, F J Martin-de Francisco, J A Godino-Durán, I Rodriguez-Carrión, M Ortega-Ortega, L Mordillo-Mateos, F Coperchini, M Rotondi, A Oliviero, M Mas
STUDY DESIGN: Prospective longitudinal study. OBJECTIVES: To assess the impact of spinal cord injury (SCI) on the spermatogenesis of patients studied in the early subacute stage and ensuing months. SETTING: National hospital for SCI patients. METHODS: A prospective follow-up study was conducted on 28 male patients with complete SCI who were evaluated in the early subacute phase (~1 month), and 3 and 6 months after the injury...
June 2017: Spinal Cord
https://www.readbyqxmd.com/read/28097486/the-therapeutic-effectiveness-of-delayed-fetal-spinal-cord-tissue-transplantation-on-respiratory-function-following-mid-cervical-spinal-cord-injury
#13
Chia-Ching Lin, Sih-Rong Lai, Yu-Han Shao, Chun-Lin Chen, Kun-Ze Lee
Respiratory impairment due to damage of the spinal respiratory motoneurons and interruption of the descending drives from brainstem premotor neurons to spinal respiratory motoneurons is the leading cause of morbidity and mortality following cervical spinal cord injury. The present study was designed to evaluate the therapeutic effectiveness of delayed transplantation of fetal spinal cord (FSC) tissue on respiratory function in rats with mid-cervical spinal cord injury. Embryonic day-14 rat FSC tissue was transplanted into a C4 spinal cord hemilesion cavity in adult male rats at 1 week postinjury...
January 17, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28069928/functional-organization-of-cutaneous-and-muscle-afferent-synapses-onto-immature-spinal-lamina-i-projection-neurons
#14
Jie Li, Mark L Baccei
It is well established that sensory afferents innervating muscle are more effective at inducing hyperexcitability within spinal cord circuits compared with skin afferents, which likely contributes to the higher prevalence of chronic musculoskeletal pain compared with pain of cutaneous origin. However, the mechanisms underlying these differences in central nociceptive signaling remain incompletely understood, as nothing is known about how superficial dorsal horn neurons process sensory input from muscle versus skin at the synaptic level...
February 8, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28057928/predictive-screening-of-m1-and-m2-macrophages-reveals-the-immunomodulatory-effectiveness-of-post-spinal-cord-injury-azithromycin-treatment
#15
John C Gensel, Timothy J Kopper, Bei Zhang, Michael B Orr, William M Bailey
Spinal cord injury (SCI) triggers a heterogeneous macrophage response that when experimentally polarized toward alternative forms of activation (M2 macrophages) promotes tissue and functional recovery. There are limited pharmacological therapies that can drive this reparative inflammatory state. In the current study, we used in vitro systems to comprehensively defined markers of macrophages with known pathological (M1) and reparative (M2) properties in SCI. We then used these markers to objectively define the macrophage activation states after SCI in response to delayed azithromycin treatment...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28025254/shaping-the-output-of-lumbar-flexor-motoneurons-by-sacral-neuronal-networks
#16
Meir Cherniak, Lili Anglister, Aharon Lev-Tov
The ability to improve motor function in spinal cord injury patients by reactivating spinal central pattern generators (CPGs) requires the elucidation of neurons and pathways involved in activation and modulation of spinal networks in accessible experimental models. Previously we reported on adrenoceptor-dependent sacral control of lumbar-flexor motoneuron firing in newborn rats. The current work focuses on clarification of the circuitry and connectivity involved in this unique modulation and its potential use...
December 26, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27981912/probing-the-human-spinal-locomotor-circuits-by-phasic-step-induced-feedback-and-by-tonic-electrical-and-pharmacological-neuromodulation
#17
Ursula S Hofstoetter, Maria Knikou, Pierre A Guertin, Karen Minassian
The mammalian lumbar spinal cord experimentally isolated from supraspinal and afferent feedback input remains capable of expressing some basic locomotor function when appropriately stimulated. This ability has been attributed to spinal neural circuits referred to as central pattern generators (CPGs). In individuals with a severe spinal cord injury, rhythmic activity in paralyzed leg muscles can be generated by phasic proprioceptive feedback during therapist- or robotic-assisted stepping on a motorized treadmill...
December 14, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27873553/real-time-control-of-an-exoskeleton-hand-robot-with-myoelectric-pattern-recognition
#18
Zhiyuan Lu, Xiang Chen, Xu Zhang, Kay-Yu Tong, Ping Zhou
Robot-assisted training provides an effective approach to neurological injury rehabilitation. To meet the challenge of hand rehabilitation after neurological injuries, this study presents an advanced myoelectric pattern recognition scheme for real-time intention-driven control of a hand exoskeleton. The developed scheme detects and recognizes user's intention of six different hand motions using four channels of surface electromyography (EMG) signals acquired from the forearm and hand muscles, and then drives the exoskeleton to assist the user accomplish the intended motion...
August 2017: International Journal of Neural Systems
https://www.readbyqxmd.com/read/27869313/the-role-of-the-mir-17-92-cluster-in-neurogenesis-and-angiogenesis-in-the-central-nervous-system-of-adults
#19
REVIEW
Ping Yang, Linghu Cai, Guan Zhang, Zhiqun Bian, Gaofeng Han
It is well known that neurogenesis is not the only concern for the fully functional recovery after brain or spinal cord injury, as it has been shed light on the critical role of angiogenesis in improving neurological functional recovery. Angiogenesis and neurogenesis coordinately interact with each other in the developing and adult brain, during which they may respond to similar mediators and receptors, in which they share a common posttranscriptional regulator: the miR-17-92 cluster. The miR-17-92 cluster was initially described as an oncogene and was later demonstrated to drive key physiological and pathological responses during development and diseases respectively...
November 21, 2016: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/27833527/intrinsic-axonal-growth-and-the-drive-for-regeneration
#20
REVIEW
Kevin J O'Donovan
Following damage to the adult nervous system in conditions like stroke, spinal cord injury, or traumatic brain injury, many neurons die and most of the remaining spared neurons fail to regenerate. Injured neurons fail to regrow both because of the inhibitory milieu in which they reside as well as a loss of the intrinsic growth capacity of the neurons. If we are to develop effective therapeutic interventions that promote functional recovery for the devastating injuries described above, we must not only better understand the molecular mechanisms of developmental axonal growth in hopes of re-activating these pathways in the adult, but at the same time be aware that re-activation of adult axonal growth may proceed via distinct mechanisms...
2016: Frontiers in Neuroscience
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