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Spinal nerve damage

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https://www.readbyqxmd.com/read/28882353/neurophysiological-monitoring-in-radiofrequency-ablation-of-spinal-osteoid-osteoma-with-a-progressive-time-and-temperature-protocol-in-children
#1
Mariano A Nöel, Martin J Segura, Sergio Sierre, Ida A Francheri Wilson, Carlos A Tello, Eduardo Galaretto, Rodrigo G Remondino, María E Talarico, Ernesto S Bersusky, Lucas Piantoni
STUDY DESIGN: Retrospective. Level IV Evidence. OBJECTIVE: To assess the utility of intraoperative neurophysiological monitoring (IONM) to detect and eventually prevent impending neurovascular damage during computed tomography (CT)-guided radiofrequency ablation (RFA) of spinal osteoid osteoma (OO) in children. SUMMARY AND BACKGROUND DATA: To our knowledge, this is the first case series of spinal OO in pediatric patients treated at a single center employing IONM during RFA...
September 2017: Spine Deformity
https://www.readbyqxmd.com/read/28881528/-clinical-research-of-minimally-invasive-spine-surgery-with-vesselplasty
#2
H Tang, P Jia, H Chen, L Bao, F Feng, J J Li
Objective: To evaluate the efficacy and safety of Vesselplasty in the treatment of osteoporotic vertebral fractures and vertebral metastases. Methods: From June 2010 to December 2016, data of 81 patients with spinal diseases treated with Vesselplasty in Department of Spinal Surgery, Beijing Friendship hospital, Capital Medical University were retrospectively analyzed. There are 49 cases of vertebral fractures with age (70.2±8.2) years. Among them, 16 cases have posterior vertebral wall breakage, but no symptoms of nerve injury...
September 5, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28871264/neuroinflammation-bone-marrow-stem-cells-and-chronic-pain
#3
REVIEW
Yul Huh, Ru-Rong Ji, Gang Chen
Current treatments for chronic pain, such as inflammatory pain, neuropathic pain, and cancer pain are insufficient and cause severe side effects. Mounting evidence suggests that neuroinflammation in the peripheral and central nervous system (PNS and CNS) plays a pivotal role in the genesis and maintenance of chronic pain. Characteristic features of neuroinflammation in chronic pain conditions include infiltration of immune cells into the PNS [e.g., the sciatic nerve and dorsal root ganglion (DRG)], activation of glial cells such as microglia and astrocytes in the CNS (spinal cord and brain), and production and secretion of pro-inflammatory cytokines and chemokines [TNF, interleukin (IL)-1β, IL-6, CCL2, and CXCL1]...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28870837/post-tetanic-transcranial-motor-evoked-potentials-augments-the-amplitude-of-compound-muscle-action-potentials-recorded-from-innervated-and-non-innervated-muscles
#4
Hideki Shigematsu, Masahiko Kawaguchi, Hironobu Hayashi, Tsunenori Takatani, Eiichiro Iwata, Masato Tanaka, Akinori Okuda, Yasuhiko Morimoto, Keisuke Masuda, Yuusuke Yamamoto, Yasuhito Tanaka
BACKGROUND CONTEXT: Transcranial electrical stimulation used to produce motor evoked potentials (TES-MEP) and subsequent compound muscle action potential (CMAP) recording is widely used to monitor motor function during surgery when there is risk of damaging the spinal cord. Nonetheless, some muscles do not produce CMAP amplitudes sufficient for intraoperative monitoring. PURPOSE: To investigate the utility of tetanic stimulation at single and multiple peripheral nerve sites for augmenting CMAP amplitudes recorded from innervated and non-innervated muscles...
September 1, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28865131/quercetin-reduces-neural-tissue-damage-and-promotes-astrocyte-activation-after-spinal-cord-injury-in-rats
#5
Yeyang Wang, Wenjun Li, Mingsen Wang, Chuangxin Lin, Guitao Li, Xiaozhong Zhou, Junnan Luo, Dadi Jin
Spinal cord injury (SCI) is lead to locomotor impairment because of neurological damage after following trauma. Quercetin (Que) has been confirmed have a neuro-protective effect during nerve damage processes. The purpose of this study was to determine the roles of Que in functional recovery, cavity formation, astrocyte activation and nerve regeneration following SCI. Sprague-Dawley rats were randomly divided into 3 groups: Sham group, SCI group and Que + SCI group. A rat model of SCI was made at T10 using the modified Allen's method...
September 2, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28860068/protraction-of-neuropathic-pain-by-morphine-is-mediated-by-spinal-damage-associated-molecular-patterns-damps-in-male-rats
#6
Peter M Grace, Keith A Strand, Erika L Galer, Kenner C Rice, Steven F Maier, Linda R Watkins
We have recently reported that a short course of morphine, starting 10days after sciatic chronic constriction injury (CCI), prolonged the duration of mechanical allodynia for months after morphine ceased. Maintenance of this morphine-induced persistent sensitization was dependent on spinal NOD-like receptor protein 3 (NLRP3) inflammasomes-protein complexes that proteolytically activate interleukin-1β (IL-1β) via caspase-1. However, it is still unclear how NLRP3 inflammasome signaling is maintained long after morphine is cleared...
August 30, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28843390/a-mathematical-model-of-cellular-swelling-in-neuromyelitis-optica
#7
Simão Laranjeira, Mkael Symmonds, Jacqueline Palace, Stephen J Payne, Piotr Orlowski
Neuromyelitis Optica (NMO) is a severe neuro-inflammatory disease of the central nervous system characterized by predominant damage to the optic nerve and of the spinal cord. The pathogenic antibody found in the majority of patients targets the AQP4 channels on astrocytic endfeet and causes the cells to swell. Although, the pathophysiology of the disease is broadly known, there are no specific targeted treatments for this process clinically available nor accurate prognostic markers both during attacks and for predicting long term neuronal damage...
August 23, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28843345/cyclosporine-immunosuppression-does-not-affect-survival-of-transplanted-skin-derived-precursor-schwann-cells-in-the-injured-rat-spinal-cord
#8
Zacnicte May, Abel Torres-Espín, Ana M Lucas-Osma, Nicholas J Batty, Pamela Raposo, Keith K Fenrich, Morgan G Stykel, Tobias Führmann, Molly Shoichet, Jeff Biernaskie, Karim Fouad
A major goal of Schwann cell (SC) transplantation for spinal cord injury (SCI) is to fill the injury site to create a bridge for regenerating axons. However, transplantation of peripheral nerve SCs requires an invasive biopsy, which may result in nerve damage and donor site morbidity. SCs derived from multipotent stem cells found in skin dermis (SKP-SCs) are a promising alternative. Regardless of source, loss of grafted SCs post-grafting is an issue in studies of regeneration, with survival rates ranging from ∼1 to 20% after ≥6 weeks in rodent models of SCI...
August 24, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28843150/neuroprotective-effect-of-liquiritin-against-neuropathic-pain-induced-by-chronic-constriction-injury-of-the-sciatic-nerve-in-mice
#9
Meng-Ting Zhang, Bing Wang, Yi-Na Jia, Ning Liu, Peng-Sheng Ma, Shuai-Shuai Gong, Yang Niu, Tao Sun, Yu-Xiang Li, Jian-Qiang Yu
Managing of neuropathic pain remains clinically challenging because the existing pharmacotherapies are either ineffective or non-specific. Therefore, developing novel alternatives is essential for better treatment. Liquiritin is an active component extracted from Glycyrrhizae radix and has potential neuroprotective action. This study aimed to investigate the protective efficacy of liquiritin on chronic constriction injury (CCI)-induced neuropathic pain in mice. Liquiritin (30, 60, and 120mg/kg) and pregabalin (40mg/kg) were administered intragastrically for 7 consecutive days starting on the 8th day post-surgery...
August 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28833264/neuromuscular-complications-of-radiation-therapy
#10
Michael Dean Stubblefield
Neuromuscular late effects of radiation therapy (RT) result from radiation fibrosis (RF) of the treated tissues. The clinical manifestations of this dysfunction have been termed radiation fibrosis syndrome (RFS). Any segment of the central and/or peripheral nervous system (PNS) can be involved including the brain, spinal cord, nerve roots, plexus, peripheral nerves, and muscles. Often multiple levels are damaged resulting in a constellation of findings named for the affected structures, i.e., "radiculo-plexo-neuro-myopathy...
August 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28827698/nogo-receptor-1-regulates-caspr-distribution-at-axo-glial-units-in-the-central-nervous-system
#11
Jae Young Lee, Min Joung Kim, Lijun Li, Alexander A Velumian, Pei Mun Aui, Michael G Fehlings, Steven Petratos
Axo-glial units are highly organised microstructures propagating saltatory conduction and are disrupted during multiple sclerosis (MS). Nogo receptor 1 (NgR1) has been suggested to govern axonal damage during the progression of disease in the MS-like mouse model, experimental autoimmune encephalomyelitis (EAE). Here we have identified that adult ngr1 (-/-) mice, previously used in EAE and spinal cord injury experiments, display elongated paranodes, and nodes of Ranvier. Unstructured paranodal regions in ngr1 (-/-) mice are matched with more distributed expression pattern of Caspr...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814609/tail-regeneration-and-other-phenomena-of-wound-healing-and-tissue-restoration-in-lizards
#12
REVIEW
Kathy Jacyniak, Rebecca P McDonald, Matthew K Vickaryous
Wound healing is a fundamental evolutionary adaptation with two possible outcomes: scar formation or reparative regeneration. Scars participate in re-forming the barrier with the external environment and restoring homeostasis to injured tissues, but are well understood to represent dysfunctional replacements. In contrast, reparative regeneration is a tissue-specific program that near-perfectly replicates that which was lost or damaged. Although regeneration is best known from salamanders (including newts and axolotls) and zebrafish, it is unexpectedly widespread among vertebrates...
August 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28811104/a-double-determination-of-central-motor-conduction-time-in-the-assessment-of-hirayama-disease
#13
Chaojun Zheng, Dongqing Zhu, Feizhou Lu, Yu Zhu, Xiaosheng Ma, Xinlei Xia, Jianyuan Jiang
OBJECTIVE: To investigate central motor conduction time (CMCT) in patients with Hirayama disease (HD) and to analyse the role of motor nerve root lesions in the pathogenesis of HD. METHODS: CMCT measured by F-wave (CMCT-F) and by paravertebral magnetic stimulation (CMCT-M) was performed on both abductor pollicis brevis (APB) and abductor digiti minimi (ADM) in 41 HD patients and 22 controls. All patients underwent neck-flexion magnetic resonance imaging evaluation...
July 31, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28804608/remyelination-improvement-after-neurotrophic-factors-secreting-cells-transplantation-in-rat-spinal-cord-injury
#14
Shahnaz Razavi, Nazem Ghasemi, Mohammad Mardani, Hossein Salehi
OBJECTIVES: Neurotrophic factors secreting cells (NTS-SCs) may be a superior cell source for cell-based therapy in neurodegenerative diseases. NTS-SCs are able to secrete some neurotrophic Such as nerve growth factor and glia-derived neurotrophic factor. Our primary aim was to assess transplantation of neurotrophic factor secreting cells derived from human adipose-derived stem cells (hADSCs) into the damaged spinal cord rats and determine the potential of these cells in remyelination...
April 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28782181/public-regulatory-databases-as-a-source-of-insight-for-neuromodulation-devices-stimulation-parameters
#15
REVIEW
Doe Kumsa, G Karl Steinke, Gregory F Molnar, Eric M Hudak, Fred W Montague, Shawn C Kelley, Darrel F Untereker, Alan Shi, Benjamin P Hahn, Chris Condit, Hyowon Lee, Dawn Bardot, Jose A Centeno, Victor Krauthamer, Pavel A Takmakov
OBJECTIVE: The Shannon model is often used to define an expected boundary between non-damaging and damaging modes of electrical neurostimulation. Numerous preclinical studies have been performed by manufacturers of neuromodulation devices using different animal models and a broad range of stimulation parameters while developing devices for clinical use. These studies are mostly absent from peer-reviewed literature, which may lead to this information being overlooked by the scientific community...
August 7, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28779869/functional-integration-of-complex-mirna-networks-in-central-and-peripheral-lesion-and-axonal-regeneration
#16
REVIEW
M Ghibaudi, M Boido, A Vercelli
New players are emerging in the game of peripheral and central nervous system injury since their physiopathological mechanisms remain partially elusive. These mechanisms are characterized by several molecules whose activation and/or modification following a trauma is often controlled at transcriptional level. In this scenario, microRNAs (miRNAs/miRs) have been identified as main actors in coordinating important molecular pathways in nerve or spinal cord injury (SCI). miRNAs are small non-coding RNAs whose functionality at network level is now emerging as a new level of complexity...
August 2, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/28757696/can-pneumocephalus-present-as-flashes-of-light-a-rare-case-report
#17
Santanu Ghosh, Menon P Jayasree, Mathew Biju, Basu Snehanshu
Orbital emphysema and associated pneumocephalus usually result from trauma to orbital bones or due to sinus disease, allowing air to travel from paranasal sinus into orbit and brain. However, it is extremely rare to have orbital emphysema and pneumocephalus in the absence of orbital wall fracture. In our case, a young male was admitted with severe eye pain, diminution of vision due to sudden exposure of compressed air gun. Examination revealed proptosed, emphysematous right eye with conjunctival laceration...
May 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/28753589/differential-expression-of-tubulin-acetylase-and-deacetylase-between-the-damaged-central-and-peripheral-branch-of-dorsal-root-ganglion-neurons
#18
Zhiyi Fu, Jiangang Shi
BACKGROUND The differences between the peripheral and central branches of the dorsal root ganglion (DRG) have not been fully elucidated. This study aimed to explore the expression of tubulin post-translational modifications (acetylation and deacetylation) between damaged peripheral and central branches of DRG neurons. MATERIAL AND METHODS Fifty Sprague-Dawley rats were randomly assigned to five groups with 10 rats in each group. These five groups consisted of spinal nerve ligation (SNL) at 24 hour and 48 hour, and cauda equina compression (CEC) at 24 hour and 48 hour, and a sham group...
July 28, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28726540/mechanisms-of-the-analgesic-effect-of-calcitonin-on-chronic-pain-by-alteration-of-receptor-or-channel-expression
#19
Akitoshi Ito, Megumu Yoshimura
The polypeptide hormone calcitonin is well known clinically for its ability to relieve osteoporotic back pain and neuropathic pain such as spinal canal stenosis, diabetic neuropathy, chemotherapy-induced neuropathy, and complex regional pain syndrome. Because the analgesic effects of calcitonin have a broad range, the underlying mechanisms of pain relief by calcitonin are largely unknown. However, recent studies using several types of chronic pain models combined with various methods have been gradually clarifying the mechanism...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28702736/changes-in-the-axon-terminals-of-primary-afferents-from-a-single-vibrissa-in-the-rat-trigeminal-nuclei-after-active-touch-deprivation-or-exposure-to-an-enriched-environment
#20
Julia Fernández-Montoya, Yasmina B Martin, Pilar Negredo, Carlos Avendaño
Lasting modifications of sensory input induce structural and functional changes in the brain, but the involvement of primary sensory neurons in this plasticity has been practically ignored. Here, we examine qualitatively and quantitatively the central axonal terminations of a population of trigeminal ganglion neurons, whose peripheral axons innervate a single mystacial vibrissa. Vibrissa follicles are heavily innervated by myelinated and unmyelinated fibers that exit the follicle mainly through a single deep vibrissal nerve...
July 12, 2017: Brain Structure & Function
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