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https://www.readbyqxmd.com/read/28918261/rat-motor-neurons-caudal-to-a-rubrospinal-tract-rst-transection-remain-viable
#1
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
#2
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
#3
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
#4
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
#5
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/28915961/short-stem-total-hip-arthroplasty-potential-explanations-for-persistent-post-surgical-thigh-pain
#6
Isabel A C Baert, Enrique Lluch, Francis Van Glabbeek, Rudy Nuyts, Salim Rufai, Joanna Tuynman, Filip Struyf, Mira Meeus
Short stem uncemented femoral implants were developed with the aim of preserving proximal bone stock for future revisions, improving biomechanical reconstruction, aiding insertion through smaller incisions and potentially decreasing or limiting the incidence of thigh pain. Despite all the advantages of short stem designs, it remains unclear whether they are able to limit post-surgical thigh pain. In patients with short stem hip arthroplasty and persistent thigh pain, it is of the utmost importance to understand the potential etiologies of this chronic pain for selecting the appropriate treatment strategy...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28915880/increasing-bladder-capacity-by-foot-stimulation-in-rats-with-spinal-cord-injuries
#7
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/28915149/bulleyaconitine-a-preferably-reduces-tetrodotoxin-sensitive-sodium-current-in-uninjured-dorsal-root-ganglion-neurons-of-neuropathic-rats-probably-via-inhibition-of-protein-kinase-c
#8
Man-Xiu Xie, Rui-Ping Pang, Jie Yang, Kai-Feng Shen, Jing Xu, Xiong-Xiong Zhong, Shao-Kun Wang, Xiao-Long Zhang, Yan-Qing Liu, Xian-Guo Liu
Oral Bulleyaconitine A (BLA) is effective for treating neuropathic pain in human patients, but the underlying mechanism is poorly understood. Here, we tested whether BLA blocked voltage-gated sodium channels (VGSCs) in dorsal root ganglion (DRG) neurons. Compelling evidence shows that voltage-gated sodium channels are upregulated in uninjured DRG neurons but downregulated in injured ones following peripheral nerve injury. We found that BLA preferably inhibited Na currents in uninjured DRG neurons in neuropathic rats...
July 17, 2017: Pain
https://www.readbyqxmd.com/read/28913694/emergency-neurological-life-support-traumatic-spine-injury
#9
Deborah M Stein, William A Knight
Traumatic spine injuries (TSIs) carry significantly high risks of morbidity, mortality, and exorbitant health care costs from associated medical needs following injury. For these reasons, TSI was chosen as an ENLS protocol. This article offers a comprehensive review on the management of spinal column injuries using the best available evidence. Though the review focuses primarily on cervical spinal column injuries, thoracolumbar injuries are briefly discussed as well. The initial emergency department (ED) clinical evaluation of possible spinal fractures and cord injuries, along with the definitive early management of confirmed injuries, are also covered...
September 14, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28913640/case-report-of-kummell-s-disease-with-delayed-onset-myelopathy-and-the-literature-review
#10
REVIEW
Salvatore D'Oria, Carlo Delvecchio, Mariagrazia Dibenedetto, Francesco Zizza, Carlo Somma
INTRODUCTION: Kummell's disease is an avascular necrosis of the vertebral body, secondary to a vertebral compression fracture. This entity is characterised by the gradual development in time of a vertebral body collapse following a trivial spinal trauma, involving a worsening back pain associated with a progressive kyphosis. PURPOSES: The aim of this article is to carry out an international literature review regarding Kummell's disease, addressing its physiopathology, histopathology, clinical presentation, radiological characteristics and treatment modalities; at the same time, the literature is updated through the description of a new and interesting case, symbol of the pathology long-term potential complications, if not diagnosed and therefore not suitably treated...
September 14, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28913385/closed-internal-degloving-of-the-flank
#11
Lindsay F Remy, Jacob Azurdia, Ashraf Fansa, Nabil A Ebraheim
Originally described in 1853 by Dr. Morel-Lavellee, closed internal degloving injuries represent an important, although uncommon, source of morbidity in trauma patients. These injuries are typically the result of a shearing or crushing force that traumatically separates the skin and subcutaneous tissue from the underlying fat. This results in disruption of perforating blood vessels and lymphatics, leading to hematoma/seroma formation. We describe two cases in which industrial crush injuries resulted in lumbar transverse process fracture...
July 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28912446/an-injectable-hydrogel-enhances-tissue-repair-after-spinal-cord-injury-by-promoting-extracellular-matrix-remodeling
#12
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/28912022/when-does-intraoperative-3d-imaging-play-a-role-in-transpedicular-c2-screw-placement
#13
Cornelius Jacobs, Philip P Roessler, Sebastian Scheidt, Milena M Plöger, Collin Jacobs, Alexander C Disch, Klaus D Schaser, Tony Hartwig
INTRODUCTION: The stabilization of an atlantoaxial (C1-C2) instability is demanding due to a complex atlantoaxial anatomy with proximity to the spinal cord, a variable run of the vertebral artery (VA) and narrow C2 pedicles. We perfomed the Goel & Harms fusion in combination with an intraoperative 3D imaging to ensure correct screw placement in the C2 pedicle. We hypothesized, that narrow C2 pedicles lead to a higher malposition rate of screws by perforation of the pedicle wall. The purpose of this study was to describe a certain pedicle size, under which the perforation rate rises...
September 8, 2017: Injury
https://www.readbyqxmd.com/read/28912021/association-between-spinal-immobilization-and-survival-at-discharge-for-on-scene-blunt-traumatic-cardiac-arrest-a-nationwide-retrospective-cohort-study
#14
Yusuke Tsutsumi, Shingo Fukuma, Asuka Tsuchiya, Tatsuyoshi Ikenoue, Yosuke Yamamoto, Sayaka Shimizu, Miho Kimachi, Shunichi Fukuhara
INTRODUCTION: Spinal immobilization has been indicated for all blunt trauma patients suspected of having cervical spine injury. However, for traumatic cardiac arrest (TCA) patients, rapid transportation without compromising potentially reversible causes is necessary. Our objective was to investigate the temporal trend of spinal immobilization for TCA patients and to examine the association between spinal immobilization and survival. METHODS: We conducted a retrospective cohort study using the Japan Trauma Data Bank 2004-2015 registry data...
September 6, 2017: Injury
https://www.readbyqxmd.com/read/28911837/quantifying-center-of-pressure-variability-in-chondrodystrophoid-dogs
#15
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/28910888/-endoscopic-salvage-treatment-for-optic-neuropathy-caused-by-sinonasal-fibro-osseous-lesions
#16
J Deng, F H Chen, Y Y Lai, J B Shi
Objective: To summarize the surgical techniques, benefits and limitations of transnasal endoscopic resection and optic nerve decompression for patients with optic neuropathy caused by fibro-osseous lesions. Methods: Eight patients with optic neuropathy caused by fibro-osseous lesions who accepted endoscopic surgery of either resection of the lesion or decompression of optic nerve in Otorhinolaryngology Hospital, First Affiliated Hospital of Sun Yat-sen University from 2007 to 2016 were retrospectively reviewed and followed until April, 2017...
September 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28910658/postural-regulatory-strategies-during-quiet-sitting-are-affected-in-individuals-with-thoracic-spinal-cord-injury
#17
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/28906368/traumatic-fractures-as-a-result-of-falls-in-children-and-adolescents-a-retrospective-observational-study
#18
Hongwei Wang, Hailong Yu, Yue Zhou, Changqing Li, Jun Liu, Lan Ou, Yiwen Zhao, Guoli Song, Jianda Han, Yu Chen, Liangbi Xiang
The aim of this study is to investigate the incidence and pattern of traumatic fractures (TFs) as a result of falls in a population of children and adolescents (≤18 years old) in China.This was a cross-sectional study. We retrospectively reviewed 1412 patients who were children and adolescents with TFs as a result of falls admitted to our university-affiliated hospitals in China from 2001 to 2010. Etiologies included high fall (height ≥2) and low fall (height <2 m). The incidence and pattern were summarized with respect to different age groups, year of admission, etiologies, genders, and the neurological function...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28905794/re-brain-activity-on-fmri-associated-with-urinary-bladder-filling-in-patients-with-a-complete-spinal-cord-injury
#19
Alan J Wein
No abstract text is available yet for this article.
October 2017: Journal of Urology
https://www.readbyqxmd.com/read/28905775/re-incidence-of-urethral-stricture-in-patients-with-spinal-cord-injury-treated-with-clean-intermittent-self-catheterization
#20
Allen F Morey
No abstract text is available yet for this article.
October 2017: Journal of Urology
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