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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/28922314/temporal-indices-of-ankle-clonus-and-relationship-to-electrophysiologic-and-clinical-measures-in-persons-with-spinal-cord-injury
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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/28919982/effective-management-of-spasticity-and-impacts-on-weight-change-and-resting-energy-expenditure-in-a-female-with-spinal-cord-injury-a-case-report
#11
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/28917371/cannabinoids-for-spasticity-due-to-multiple-sclerosis-or-paraplegia-a-systematic-review-and-meta-analysis-of-randomized-clinical-trials
#12
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
#13
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
#14
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
#15
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
https://www.readbyqxmd.com/read/28915880/increasing-bladder-capacity-by-foot-stimulation-in-rats-with-spinal-cord-injuries
#16
Guoqing Chen, Limin Liao, Zhaoxia Wang, Xing Li, Wenjuan Du
BACKGROUND: This study was to explore the possibility that foot stimulation increased bladder capacity(BC) in rats with neurogenic bladder secondary to T10 spinal cord injuries. METHODS: In 20 awake rats (stimulation group) with T10 spinal cord injuries, 5 repeat cystometrograms (CMGs) were recorded. The 1st and 2nd CMGs were performed without stimulation. The 3rd, 4th, and 5th CMGs were done separately with 1 T, 2 T, and 4 T stimulation, respectively, through a pair of pad electrodes on the skin of the hind foot...
September 15, 2017: BMC Urology
https://www.readbyqxmd.com/read/28912446/an-injectable-hydrogel-enhances-tissue-repair-after-spinal-cord-injury-by-promoting-extracellular-matrix-remodeling
#17
Le Thi Anh Hong, Young-Min Kim, Hee Hwan Park, Dong Hoon Hwang, Yuexian Cui, Eun Mi Lee, Stephanie Yahn, Jae K Lee, Soo-Chang Song, Byung Gon Kim
The cystic cavity that develops following injuries to brain or spinal cord is a major obstacle for tissue repair in central nervous system (CNS). Here we report that injection of imidazole-poly(organophosphazenes) (I-5), a hydrogel with thermosensitive sol-gel transition behavior, almost completely eliminates cystic cavities in a clinically relevant rat spinal cord injury model. Cystic cavities are bridged by fibronectin-rich extracellular matrix. The fibrotic extracellular matrix remodeling is mediated by matrix metalloproteinase-9 expressed in macrophages within the fibrotic extracellular matrix...
September 14, 2017: Nature Communications
https://www.readbyqxmd.com/read/28911837/quantifying-center-of-pressure-variability-in-chondrodystrophoid-dogs
#18
S R Blau, L M Davis, A M Gorney, C S Dohse, K D Williams, J-H Lim, W G Pfitzner, E Laber, G S Sawicki, N J Olby
The center of pressure (COP) position reflects a combination of proprioceptive, motor and mechanical function. As such, it can be used to quantify and characterize neurologic dysfunction. The aim of this study was to describe and quantify the movement of COP and its variability in healthy chondrodystrophoid dogs while walking to provide a baseline for comparison to dogs with spinal cord injury due to acute intervertebral disc herniations. Fifteen healthy adult chondrodystrophoid dogs were walked on an instrumented treadmill that recorded the location of each dog's COP as it walked...
August 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28910658/postural-regulatory-strategies-during-quiet-sitting-are-affected-in-individuals-with-thoracic-spinal-cord-injury
#19
Matija Milosevic, Dany H Gagnon, Philippe Gourdou, Kimitaka Nakazawa
Thoracic spinal cord injury (SCI) can have significant negative consequences, which can affect the ability to maintain unsupported sitting. The objectives of this study were to compare postural control of individuals with high- and low-thoracic SCI to able-bodied people and evaluate the effects of upper-limb support on postural control during quiet sitting. Twenty-five individuals were recruited into: (a) high-thoracic SCI; (b) low-thoracic SCI; and (c) able-body subgroups. Participants were seated and asked to maintain a steady balance in the following postures: (1) both hands resting on thighs; (2) both arms crossed over the chest; and (3) both arms extended...
August 31, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28905794/re-brain-activity-on-fmri-associated-with-urinary-bladder-filling-in-patients-with-a-complete-spinal-cord-injury
#20
Alan J Wein
No abstract text is available yet for this article.
October 2017: Journal of Urology
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