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https://www.readbyqxmd.com/read/28925510/mir-30a-5p-ameliorates-spinal-cord-injury-induced-inflammatory-responses-and-oxidative-stress-by-targeting-neurod-1-through-mapk-erk-signaling
#1
Xiaodong Fu, Yi Shen, Weili Wang, Xiaomiao Li
Spinal cord injury (SCI) is a major disability requiring more effective treatment than is currently available. MicroRNAs have been shown to effectively regulate gene expression at the translational level. The aim of the present study was to explore the potential role of miR-30-5p and possible mechanism in SCI. We found that miR-30-5p was notably down-regulated, while Neurod 1 expression was highly elevated in microglia from the mouse model of SCI. Additionally, overexpression of miR-30a-5p significantly suppressed inflammatory responses as reflected by an decrease in the secretion of the cytokines TNF-α, IL-1β and IL-10 triggered by SCI...
September 19, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28923686/high-speed-video-analysis-improves-the-accuracy-of-spinal-cord-compression-measurement-in-a-mouse-contusion-model
#2
Marion Fournely, Yvan Petit, Éric Wagnac, Jérôme Laurin, Virginie Callot, Pierre-Jean Arnoux
BACKGROUND: Animal models of spinal cord injuries aim to utilize controlled and reproducible conditions. However, a literature review reveals that mouse contusion studies using equivalent protocols may show large disparities in the observed impact force vs. cord compression relationship. The overall purpose of this study was to investigate possible sources of bias in these measurements. The specific objective was to improve spinal cord compression measurements using a video-based setup to detect the impactor-spinal cord time-to-contact...
September 15, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28922963/lentivirus-mediating-fgf13-enhances-axon-regeneration-after-spinal-cord-injury-by-stablilizing-microtubule-and-improving-mitochondrial-function
#3
Jiawei Li, Qingqing Wang, Haoli Wang, Yanqing Wu, Jiayu Yin, Jian Chen, Zengming Zheng, Ting Jiang, Ling Xie, Fenzan Wu, Hongyu Zhang, Xiaokun Li, Huazi Xu, Jian Xiao
Fibroblast growth factor 13 (FGF13), a nonsecretory protein of the FGF family, plays a crucial role in developing cortical neurons by stabilizing the microtubule. In previous studies, we showed that regulation of microtubule dynamic was instrumental for both growth cone initiation and for promoting regrowth of injured axon. However, the expression and effect of FGF13 in spinal cord or after spinal cord injury (SCI) remains undefined. Here, we demonstrated a role of FGF13 in regulating microtubule dynamics and in enhancing axon regeneration after SCI...
September 19, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28922957/spinal-meninges-and-their-role-in-spinal-cord-injury-a-neuroanatomical-review
#4
Lukas Grassner, Andreas Grillhösl, Christoph Griessenauer, Claudius Thomé, Volker Bühren, Martin Strowitzki, Peter Winkler
Current recommendations support early surgical decompression and blood pressure augmentation after traumatic spinal cord injury (SCI). Elevated intraspinal pressure (ISP), however, has probably been underestimated in the pathophysiology of SCI. Recent studies provide some evidence that ISP measurements and durotomy may be beneficial for individuals suffering from SCI. Compression of the spinal cord against the meninges in SCI patients causes a 'compartment-like' syndrome. In such cases, intentional durotomy with augmentative duroplasty to reduce ISP and improve spinal cord perfusion pressure may be indicated...
September 19, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28922881/intraoperative-flow-800-analysis-for-intramedullary-cystic-lesion-a-technical-case-report
#5
Masahiro Sawada, Toshihiro Munemitsu, Masato Hojo
BACKGROUND AND IMPORTANCE: During intramedullary lesion surgery, the lesion site and the posterior median sulcus (PMS) should be accurately identified prior to myelotomy to avoid severe injury of the posterior funiculus. However, intramedullary lesions are fundamentally invisible until the myelotomy is performed. Furthermore, the PMS location is frequently unclear due to lesion-induced swelling or distortion of the spinal cord. Intraoperative indocyanine green videoangiography (ICG-VA) followed by FLOW 800 analysis, which shows vascularization of the spinal parenchyma, may provide a solution for these problems in specific cases...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28922314/temporal-indices-of-ankle-clonus-and-relationship-to-electrophysiologic-and-clinical-measures-in-persons-with-spinal-cord-injury
#6
Kathleen J Manella, Kathryn E Roach, Edelle C Field-Fote
BACKGROUND AND PURPOSE: Clonus arising from plantar flexor hyperreflexia is a phenomenon that is commonly observed in persons with spastic hypertonia. We assessed the temporal components of a biomechanical measure to quantify ankle clonus, and validated these in persons with spasticity due to spinal cord injury. METHODS: In 40 individuals with chronic (>1 year) spinal cord injury, we elicited ankle clonus using a standardized mechanical perturbation (drop test)...
October 2017: Journal of Neurologic Physical Therapy: JNPT
https://www.readbyqxmd.com/read/28921700/low-dose-fractionated-irradiation-promotes-axonal-regeneration-beyond-reactive-gliosis-and-facilitates-locomotor-function-recovery-after-spinal-cord-injury-in-beagle-dogs
#7
Qiang Zhang, Ying Xiong, Bo Zhu, Bifeng Zhu, Daishi Tian, Wei Wang
Injury to the adult central nervous system (CNS) results in the formation of glial scar tissues. Glial scar-induced failure of regenerative axon pathfinding may limit axon regrowth beyond the lesion site and cause incorrect reinnervation and dystrophic appearance of stalled growth after CNS trauma. Glial scars also upregulate chondroitin sulfate proteoglycans (CSPGs) and expression of proinflammatory factor(s) that form a barrier to axonal regeneration. Therefore, interventions for glial scarring are an attractive strategy for augmenting axonal sprouting and regeneration and overcoming the physical and molecular barriers impeding functional repair...
September 18, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28921694/protease-activated-receptor-2-controls-myelin-development-resiliency-and-repair
#8
Hyesook Yoon, Maja Radulovic, Grant Walters, Alex R Paulsen, Kristen Drucker, Phillip Starski, Jianmin Wu, David P Fairlie, Isobel A Scarisbrick
Oligodendrocytes are essential regulators of axonal energy homeostasis and electrical conduction and emerging target cells for restoration of neurological function. Here we investigate the role of protease activated receptor 2 (PAR2), a unique protease activated G protein-coupled receptor, in myelin development and repair using the spinal cord as a model. Results demonstrate that genetic deletion of PAR2 accelerates myelin production, including higher proteolipid protein (PLP) levels in the spinal cord at birth and higher levels of myelin basic protein and thickened myelin sheaths in adulthood...
September 18, 2017: Glia
https://www.readbyqxmd.com/read/28921476/expression-of-concern-to-role-of-physiotherapy-in-the-mobilization-of-patients-with-spinal-cord-injury-undergoing-human-embryonic-stem-cells-transplantation
#9
Geeta Shroff, Dipin Thakur, Varun Dhingra, Deepak Singh Baroli, Deepanshu Khatri, Rahul Dev Gautam
The Editors-in-Chief of Clinical and Translational Medicine are issuing an editorial expression of concern to alert readers that concerns have been raised regarding the ethics of this study [1]. Appropriate editorial action will be taken once this has been fully investigated. Geeta Shroff disagrees with this notice. Dipin Thakur, Varun Dhingra, Deepak Singh Baroli, Deepanshu Khatri and Rahul Dev Gautam have not responded to our correspondence about this article.
September 18, 2017: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/28921013/spinal-cord-injury-as-a-complication-of-thoracic-endovascular-aneurysm-repair
#10
REVIEW
Taijiro Sueda, Shinya Takahashi
OBJECTIVE: Spinal cord ischemia (SCI) is a devastating complication of thoracic aortic aneurysm repair in the era of thoracic endovascular aneurysm repair (TEVAR). This review aims to clarify the causes of SCI during TEVAR and to propose ways that it may be prevented. METHODS AND RESULTS: We performed an extensive literature search of SCI during TEVAR. Based on the existing literature, we examined the anatomy of the anterior spinal cord artery, which supplies blood to the anterior aspect of the spinal cord, and discuss reported effective ways to prevent SCI during TEVAR, including augmentation of arterial blood pressure and drainage of cerebrospinal fluid...
September 18, 2017: Surgery Today
https://www.readbyqxmd.com/read/28920935/spinal-cord-injury-induced-immunodeficiency-is-mediated-by-a-sympathetic-neuroendocrine-adrenal-reflex
#11
Harald Prüss, Andrea Tedeschi, Aude Thiriot, Lydia Lynch, Scott M Loughhead, Susanne Stutte, Irina B Mazo, Marcel A Kopp, Benedikt Brommer, Christian Blex, Laura-Christin Geurtz, Thomas Liebscher, Andreas Niedeggen, Ulrich Dirnagl, Frank Bradke, Magdalena S Volz, Michael J DeVivo, Yuying Chen, Ulrich H von Andrian, Jan M Schwab
Acute spinal cord injury (SCI) causes systemic immunosuppression and life-threatening infections, thought to result from noradrenergic overactivation and excess glucocorticoid release via hypothalamus-pituitary-adrenal axis stimulation. Instead of consecutive hypothalamus-pituitary-adrenal axis activation, we report that acute SCI in mice induced suppression of serum norepinephrine and concomitant increase in cortisol, despite suppressed adrenocorticotropic hormone, indicating primary (adrenal) hypercortisolism...
September 18, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28920082/is-a-persistent-central-canal-a-risk-factor-for-neurological-injury-in-patients-undergoing-surgical-correction-of-scoliosis
#12
Steven Kyriacou, Yuen Man, Karen Plumb, Matthew Shaw, Kia Rezajooi
BACKGROUND: Scoliosis patients with associated syringomyelia are at an increased risk of neurological injury during surgical deformity correction. The syrinx is therefore often addressed surgically prior to scoliosis correction to minimize this risk. It remains unclear if the presence of a persistent central canal (PCC) within the spinal cord also poses a similar risk. The aim of this study is to determine whether there is any evidence to suggest that patients with a PCC are also at a higher risk of neurological injury during surgical scoliosis correction...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28919982/effective-management-of-spasticity-and-impacts-on-weight-change-and-resting-energy-expenditure-in-a-female-with-spinal-cord-injury-a-case-report
#13
Amy N Nevin, Khanh Nguyen, Sridhar Atresh, Angela Vivanti, Ingrid J Hickman
INTRODUCTION: The impact of muscle spasticity on weight change and energy expenditure after spinal cord injury (SCI) is not well understood. CASE PRESENTATION: This case study reports changes to body weight and resting energy expenditure (REE) in a 36-year-old female (T3 AIS A SCI; 80 kg; body mass index=28 kg m(-)(2) at injury) requiring escalating therapies to manage severe spasticity. Body weight, spasticity medications and fasted REE (measured using indirect calorimetry, canopy hood) were recorded at 4, 16, 17, 20 and 44 months post injury...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28919185/epidemiology-of-cervical-spine-injuries-in-high-school-athletes-over-a-ten-year-period
#14
Adele Meron, Christopher McMullen, Scott R Laker, Dustin Currie, R Dawn Comstock
BACKGROUND: Over 7 million athletes participate in high school (HS) sports annually, with both the benefits of physical activity and risks of injury. While catastrophic cervical spine injuries have been studied, limited data are available characterizing less severe cervical spine injuries in HS athletes. OBJECTIVE: To describe and compare cervical spine injury rates and patterns among United States (US) HS athletes across 24 sports over a ten-year period. DESIGN: Descriptive epidemiology study SETTING: National sample of high schools participating in the High School Reporting Information Online (High School RIO) injury surveillance system...
September 12, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28918684/differential-induction-of-c-fos-and-phosphorylated-erk-by-a-noxious-stimulus-after-peripheral-nerve-injury
#15
Mitsuyasu Tabata, Ryuji Terayama, Kotaro Maruhama, Seiji Iida, Tomosada Sugimoto
Induction of c-Fos and phosphorylated extracellular signal-regulated kinase (p-ERK) has been demonstrated in spinal dorsal horn neurons by noxious stimuli. In this study, we compared induction of c-Fos and p-ERK in the spinal dorsal horn after peripheral nerve injury. We examined the spinal dorsal horn for noxious heat-induced c-Fos and p-ERK protein-like immunoreactive (c-Fos- and p-ERK-IR) neuron profiles after tibial nerve injury. A large number of c-Fos- and p-ERK-IR neuron profiles were induced by noxious heat stimulation to the hindpaw in sham-operated animals...
September 18, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28918261/rat-motor-neurons-caudal-to-a-rubrospinal-tract-rst-transection-remain-viable
#16
Brandon M Wild, Rahul Mohan, Renée Morris
In the rat, the rubrospinal tract (RST) is a descending motor pathway involved in the production of skilled reaching movement. The RST originates in the red nucleus in the midbrain and runs down the spinal cord in the lateral-most aspect of the dorsolateral funiculus (DLF). The RST makes monosynaptic contact with interneurons within the intermediate laminae of the cord, however a contingent of RST axons constitutes direct supraspinal input for spinal cord motor neurons. The current study investigated the effects of unilateral RST transection at cervical levels C3-4 on the population of motor neurons in both spinal segments C5-6 and L2-3...
September 13, 2017: Neuroscience
https://www.readbyqxmd.com/read/28917371/cannabinoids-for-spasticity-due-to-multiple-sclerosis-or-paraplegia-a-systematic-review-and-meta-analysis-of-randomized-clinical-trials
#17
REVIEW
Victoria P da Rovare, Gabriel P A Magalhães, Guilherme D A Jardini, Matheus L Beraldo, Mariel O Gameiro, Arnav Agarwal, Gustavo José Luvizutto, Lucas Paula-Ramos, Samira Esteves Afonso Camargo, Luciane Dias de Oliveira, Rodrigo Bazan, Regina El Dib
OBJECTIVES: Spasticity remains highly prevalent in patients with spinal cord injury and multiple sclerosis. To summarize the effects of cannabinoids compared with usual care, placebo for spasticity due to multiple sclerosis (MS) or paraplegia. METHODS: Searches of MEDLINE, EMBASE, CENTRAL and LILACS to March 2017 were performed to identify randomized controlled trials. The primary outcomes were spasticity and spasm frequency. The criteria were any patient with MS and spasticity affecting upper or lower limbs or both, and that had a confirmed diagnosis of MS based on validated criteria, or however defined by the authors of the included studies...
October 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28917164/uplc-ms-ms-assay-of-riluzole-in-human-plasma-and-cerebrospinal-fluid-csf-application-in-samples-from-spinal-cord-injured-patients
#18
Mahua Sarkar, Robert G Grossman, Elizabeth G Toups, Diana S-L Chow
In the present study, a sensitive and robust LC-MS/MS method has been developed and validated for the quantification of riluzole in human plasma and cerebrospinal fluid (CSF) in clinical samples from patients with spinal cord injury (SCI). Riluzole and its labeled internal standard (IS) were isolated from plasma and CSF by liquid-liquid extraction using ethyl acetate. Riluzole (m/z 235→166) and IS (m/z 238→169) were detected by electrospray ionization (ESI) using multiple reaction monitoring (MRM) in a positive mode...
September 1, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28916536/an-improved-way-to-predict-neurologic-recovery-in-acute-spinal-cord-injury
#19
EDITORIAL
Kristopher A Lyon, Jason H Huang
No abstract text is available yet for this article.
September 15, 2017: Neurology
https://www.readbyqxmd.com/read/28916535/spinal-cord-perfusion-pressure-predicts-neurologic-recovery-in-acute-spinal-cord-injury
#20
Jordan W Squair, Lise M Bélanger, Angela Tsang, Leanna Ritchie, Jean-Marc Mac-Thiong, Stefan Parent, Sean Christie, Christopher Bailey, Sanjay Dhall, John Street, Tamir Ailon, Scott Paquette, Nicolas Dea, Charles G Fisher, Marcel F Dvorak, Christopher R West, Brian K Kwon
OBJECTIVE: To determine whether spinal cord perfusion pressure (SCPP) as measured with a lumbar intrathecal catheter is a more predictive measure of neurologic outcome than the conventionally measured mean arterial pressure (MAP). METHODS: A total of 92 individuals with acute spinal cord injury were enrolled in this multicenter prospective observational clinical trial. MAP and CSF pressure (CSFP) were monitored during the first week postinjury. Neurologic impairment was assessed at baseline and at 6 months postinjury...
September 15, 2017: Neurology
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