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Spinal nerve injury

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https://www.readbyqxmd.com/read/29231595/-effects-of-electroacupuncture-on-activation-of-microglia-cells-in-spinal-cord-in-rats-with-neuropathic-pain
#1
Sisi Li, Pengpeng Gu, Wenzhan Tu, Xia Jiang, Wenci Chen, Qimiao Hu, Songhe Jiang
OBJECTIVE: To observe the effects of electroacupuncture (EA) on the activation of microglia cells in the L4 to L6 spinal cord in rats with neuropathic pain, so as to investigate whether EA could inhibit the activation of spinal microglial cells and regulate the expression of brain-derived neurotrophic factor (BDNF) to achieve the analgesic effect. METHODS: Forty male Sprague Dawley rats were randomly divided into a normal group, a sham-model group, a model group and an EA group, 10 rats in each one...
April 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
https://www.readbyqxmd.com/read/29230542/secondary-intracranial-hypertension-pseudotumor-cerebri-presenting-as-post-traumatic-headache-in-mild-traumatic-brain-injury-a-case-series
#2
Tonia Sabo, Charlene Supnet, Sushmita Purkayastha
BACKGROUND: Cerebral edema peaks 36-72 h after moderate traumatic brain injury but thought to be uncommon after mild traumatic brain injury. Post-traumatic headache can develop 48-72 h post-injury, perhaps reflecting the developing cerebral edema. Pseudotumor cerebri can result from various causes, including cerebral edema, and is characterized by increased intracranial pressure, headache, visual, and other common symptoms. Our objective was to report a phenotypically identifiable post-traumatic headache subtype...
December 11, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29224922/neurons-and-satellite-glial-cells-in-adult-rat-lumbar-dorsal-root-ganglia-express-connexin-36
#3
E Martha Pérez Armendariz, Monica Norcini, Beatriz Hernández-Tellez, Andrés Castell-Rodríguez, Cristina Coronel-Cruz, Raquel Guerrero Alquicira, Alexandra Sideris, Esperanza Recio-Pinto
Previous studies have shown that following peripheral nerve injury there was a downregulation of the gap junction protein connexin 36 (Cx36) in the spinal cord; however, it is not known whether Cx36 protein is expressed in the dorsal root ganglia (DRGs), nor if its levels are altered following peripheral nerve injuries. Here we address these aspects in the adult rat lumbar DRG. Cx36 mRNA was detected using qRT-PCR, and Cx36 protein was identified in DRG sections using immunohistochemistry (IHC) and immunofluorescence (IF)...
December 7, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29224279/-overexpression-of-trpv1-after-periphery-nerve-injury-attenuates-nerve-regeneration-in-rats
#4
J Bai, Y Zhang, Y F Wang, J Lan, X Q Li
Objective: To observe the effect of the expressive or functional blockage of TRPV1 on nerve regeneration after sciatic trans-section injury. Methods: AMG-517, a kind of TRPV1 inhibitor, was injected into the surrounding area of the ipsilateral lumbar dorsal root ganglia while unilateral sciatic nerve was transected. A total of 24 healthy male Sprague-Dawley rats were divided into 4 groups: control group, injury only group, injury+ AMG-517 150 μg/kg group, injury+ AMG-517 300 μg/kg group. The injury only group was injected the same volume of medium...
December 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29223327/restoration-of-motor-function-after-operative-reconstruction-of-the-acutely-transected-spinal-cord-in-the-canine-model
#5
Zehan Liu, Shuai Ren, Kuang Fu, Qiong Wu, Jun Wu, Liting Hou, Hong Pan, Linlin Sun, Jian Zhang, Bingjian Wang, Qing Miao, Guiyin Sun, Vincenzo Bonicalzi, Sergio Canavero, Xiaoping Ren
BACKGROUND: Cephalosomatic anastomosis or what has been called a "head transplantation" requires full reconnection of the respective transected ends of the spinal cords. The GEMINI spinal cord fusion protocol has been developed for this reason. Here, we report the first randomized, controlled study of the GEMINI protocol in large animals. METHODS: We conducted a randomized, controlled study of a complete transection of the spinal cord at the level of T10 in dogs at Harbin Medical University, Harbin, China...
December 6, 2017: Surgery
https://www.readbyqxmd.com/read/29219757/spinal-accessory-nerve-to-triceps-muscle-transfer-using-long-autologous-nerve-grafts-for-recovery-of-elbow-extension-in-traumatic-brachial-plexus-injuries
#6
Liselotte F Bulstra, Nadia Rbia, Michelle F Kircher, Robert J Spinner, Allen T Bishop, Alexander Y Shin
OBJECTIVE Reconstructive options for brachial plexus lesions continue to expand and improve. The purpose of this study was to evaluate the prevalence and quality of restored elbow extension in patients with brachial plexus injuries who underwent transfer of the spinal accessory nerve to the motor branch of the radial nerve to the long head of the triceps muscle with an intervening autologous nerve graft and to identify patient and injury factors that influence functional triceps outcome. METHODS A total of 42 patients were included in this retrospective review...
December 8, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29217422/hyperbaric-oxygen-ameliorated-the-lesion-scope-and-nerve-function-in-acute-spinal-cord-injury-patients-a-retrospective-study
#7
Jie-Wen Tan, Fang Zhang, He-Jun Liu, Zhuo Li
OBJECTIVE: This is a retrospective study to assess the therapeutic effect of hyperbaric oxygen (HBO) in early treatment of acute spinal cord injury (SCI) using magnetic resonance imaging (MRI) and electrophysiology in diagnosing. METHODS: Forty acute SCI patients from Sun Yat-Sen Memorial Hospital who were assigned into HBO treatment were included during August 2013 to October 2014.The patients with adverse reactions or contraindications for HBO were assigned as controls...
December 4, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/29217355/crocetin-attenuates-spared-nerve-injury-induced-neuropathic-pain-in%C3%A2-mice
#8
Xiaolei Wang, Guangqing Zhang, Yong Qiao, Chang Feng, Xin Zhao
Crocetin is the main component of saffron and exhibits anti-oxidative and anti-inflammatory effects. Neuroinflammation and oxidative stress have been recognized to play a crucial role in the pathogenesis of neuropathic pain. We investigated the effect of crocetin in a mouse model with neuropathic pain induced by spared nerve injury (SNI). Crocetin was intrathecally perfused at various doses for up to 12 days starting 3 days before the surgery. Behavioral tests were performed to determine pain sensitivity. The concentrations of proinflammatory cytokines tumor necrosis factor (TNF-α) and interleukin-1β (IL-1β) were measured to assess neuroinflammation...
November 24, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/29216010/calcitonin-gene-related-peptide-cgrp-role-in-peripheral-nerve-regeneration
#9
REVIEW
Albert M Chung
Calcitonin gene-related peptide (CGRP) is a neuropeptide that has an important anti-inflammatory role in the immune system. Research has shown that CGRP is an integral part in peripheral nerve regeneration by (1) suppressing tumor necrosis factor-α, (2) forming an initial nerve bridge by increasing fibroblast motility and extracellular matrix synthesis, (3) vascularizing the spinal cord injury site, and (4) inducing Schwann cell (SC) proliferation. In this treatise, the following hypotheses will be explored: (1) CGRP is induced by c-Jun to regulate SC dedifferentiation, (2) CGRP promotes the chemotaxic migration of SCs along the nerve bridge, and (3) CGRP induces myelinophagy by activating various signaling pathways, such as p38 mitogen-activated protein kinase and Raf/extracellular signal-regulated kinase...
December 7, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/29215736/protective-effect-of-epigenetic-silencing-of-cyclind1-against-spinal-cord-injury-using-bone-marrow-derived-mesenchymal-stem-cells-in-rats
#10
Yuan Wang, Qing-Jie Kong, Jin-Chuan Sun, Xi-Ming Xu, Yong Yang, Ning Liu, Jian-Gang Shi
OBJECTIVE: This study focuses on the protective effect of epigenetic silencing of CyclinD1 against spinal cord injury (SCI) using bone marrow-derived mesenchymal stem cells (BMSCs) in rats. METHODS: Eighty-eight adult female Wistar rats were randomly assigned into the sham group, the control group, the si-CyclinD1 + BMSCs group and the BMSCs group. CyclinD1 protein and mRNA expressions after siRNA transfection were detected by western blotting and qRT-PCR. The siRNA-CyclinD1 BMSCs were transplanted into rats in the si-CyclinD1 + BMSCs group using stereotaxic method 6 h after SCI...
December 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29215727/secreted-frizzled-related-protein-1-regulates-the-progression-of-neuropathic-pain-in-mice-following-spinal-nerve-ligation
#11
Jun Tang, Qing Ji, Li Jin, Mi Tian, Li Dong Zhang, Xiao Yu Liu
Previous studies have showed that the Wnt/β-catenin signaling pathway plays an important role in modulating neuropathic pain after sciatic nerve injury. In this study, we explored the role of secreted frizzled-related protein 1 (SFRP1), a Wnt antagonist, in neuropathic pain using a rat model following spinal nerve ligation (SNL). We found SNL-induced SFRP1 downregulation in the spinal cord. Further, the overexpression of SFRP1 via spinal injection into the spinal cord attenuated SNL-induced allodynia, hyperalgesia and neuroinflammation...
December 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29209025/oblique-corpectomy-in-the-cervical-spine
#12
Tomasz Tykocki, Łukasz A Poniatowski, Marcin Czyz, Guy Wynne-Jones
STUDY DESIGN: A narrative review. OBJECTIVES: A literature review of studies reporting on the application of oblique corpectomy (OC) in various pathologies of the cervical spine. SETTING: UK. METHODS: A search was carried out using the PubMed and Google Scholar up to 18 March 2017. Finally, 26 studies met the inclusion criteria. RESULTS: A multilevel OC shows good clinical outcomes in various pathologies in the cervical spine...
December 5, 2017: Spinal Cord
https://www.readbyqxmd.com/read/29198437/spinal-cord-injuries-and-nerve-dependence-in-prostate-cancer
#13
Alison Rutledge, Phillip Jobling, Marjorie M Walker, Jim W Denham, Hubert Hondermarck
Nerves are emerging as drivers of tumorigenesis, as demonstrated in the mouse where denervation suppresses prostate cancer; however, clinical evidence is needed. Patients with spinal cord injuries (SCIs) resulting in functional denervation of the prostate have a lower incidence of prostate cancer. This may constitute a clinical evidence for nerve dependence in human prostate tumorigenesis.
December 2017: Trends in Cancer
https://www.readbyqxmd.com/read/29191982/case-studies-in-physiology-exercise-induced-diaphragm-fatigue-in-a-paralympic-champion-rower-with-spinal-cord-injury
#14
Nicholas B Tiller, Thomas R Aggar, Christopher R West, Lee M Romer
INTRODUCTION: The aim of this case report was to determine whether maximal upper-body exercise was sufficient to induce diaphragm fatigue in a Paralympic champion adaptive rower with low-lesion spinal cord injury (SCI). CASE PRESENTATION: An elite arms-only oarsman (age 28 y, stature 1.89 m, mass 90.4 kg) with motor-complete SCI (T12) performed a 1000 m time-trial on an adapted rowing ergometer. Exercise measurements comprised pulmonary ventilation and gas exchange, diaphragm EMG-derived indices of neural respiratory drive and intrathoracic pressure-derived indices of respiratory mechanics...
November 30, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29190980/transplanted-olfactory-ensheathing-cells-restore-retinal-function-in-a-rat-model-of-light-induced-retinal-damage-by-inhibiting-oxidative-stress
#15
Langyue Xue, Yuxiao Zeng, Qiyou Li, Yijian Li, Zhengya Li, Haiwei Xu, Zhengqin Yin
There is still not an effective treatment for continuous retinal light exposure and subsequent photoreceptor degeneration. Olfactory ensheathing cell (OEC) transplantation has been shown to be neuroprotective in spinal cord, and optic nerve injury and retinitis pigmentosa. However, whether OECs protect rat photoreceptors against light-induced damage and how this may work is unclear. Thus, to elucidate this mechanism, purified rat OECs were grafted into the subretinal space of a Long-Evans rat model with light-induced photoreceptor damage...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29190962/wu-tou-decoction-attenuates-neuropathic-pain-via-suppressing-spinal-astrocytic-il-1r1-traf6-jnk-signaling
#16
Chao Wang, Xiangying Kong, Chunyan Zhu, Chunfang Liu, Danni Sun, Qionghong Xu, Zhiyun Mao, Qingxia Qin, Hongchang Su, Danqiao Wang, Xiaoliang Zhao, Na Lin
Neuropathic pain (NP) caused by nerve injuries continues to be an intractable challenge due to inadequate therapeutic strategies. Recent study demonstrated glia-induced neuro-inflammation in the spinal cord, especially the activation of astrocytes, plays an essential role in the development of NP, which opens new avenues for NP treatment. In this study, we explored the anti-hyperalgesia properties of Wu-tou decoction (WTD) and showed that WTD potently attenuates mechanical allodynia and heat hyperalgesia in lumbar 5 (L5) spinal nerve ligation (SNL)-induced NP without noticeable side effect or affecting basal pain perception of mice...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29185474/exploration-of-hand-grasp-patterns-elicitable-through-non-invasive-proximal-nerve-stimulation
#17
Henry Shin, Zach Watkins, Xiaogang Hu
Various neurological conditions, such as stroke or spinal cord injury, result in an impaired control of the hand. One method of restoring this impairment is through functional electrical stimulation (FES). However, traditional FES techniques often lead to quick fatigue and unnatural ballistic movements. In this study, we sought to explore the capabilities of a non-invasive proximal nerve stimulation technique in eliciting various hand grasp patterns. The ulnar and median nerves proximal to the elbow joint were activated transcutanously using a programmable stimulator, and the resultant finger flexion joint angles were recorded using a motion capture system...
November 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29184144/sex-differences-in-peripheral-not-central-immune-responses-to-pain-inducing-injury
#18
Douglas M Lopes, Natalia Malek, Michelle Edye, Sara Buskbjerg Jager, Sheridan McMurray, Stephen B McMahon, Franziska Denk
Women suffer chronic pain more frequently than men. It is not clear whether this is due to differences in higher level cognitive processes or basic nociceptive responses. In this study we used a mouse model of neuropathic pain to dissociate these factors. We performed RNA-seq on purified peripheral afferent neurons, but found no striking differences in gene expression between male and female mice, neither before nor after nerve injury. Similarly, spinal cord immune responses between the sexes appeared to be indistinguishable when studied by flow cytometry or qRT-PCR...
November 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29184051/clinical-efficacy-of-anterior-partial-corpectomy-and-titanium-mesh-fusion-and-internal-fixation-for-treatment-of-old-fracture-dislocation-of-the-lower-cervical-spine
#19
De-Chao Miao, Bao-Yang Zhang, Tao Lei, Yong Shen
BACKGROUND The aim of this study was to analyze the clinical features and to evaluate the efficacy of anterior partial corpectomy and titanium mesh fusion and internal fixation of old fracture dislocation of the lower cervical spine. MATERIAL AND METHODS We retrospectively analyzed the clinical data of 52 patients with old lower cervical fracture and dislocation treated with anterior partial corpectomy and titanium mesh fusion fixation between January 2008 and December 2013, with a mean follow-up period of 4...
November 29, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29183676/depolarization-and-electrical-stimulation-enhance-in-vitro-and-in-vivo-sensory-axon-growth-after-spinal-cord-injury
#20
Ioana Goganau, Beatrice Sandner, Norbert Weidner, Karim Fouad, Armin Blesch
Activity dependent plasticity is a key mechanism for the central nervous system (CNS) to adapt to its environment. Whether neuronal activity also influences axonal regeneration in the injured CNS, and whether electrical stimulation (ES) can activate regenerative programs in the injured CNS remains incompletely understood. Using KCl-induced depolarization, in vivo ES followed by ex-vivo neurite growth assays and ES after spinal cord lesions and cell grafting, we aimed to identify parameters important for ES-enhanced neurite growth and axonal regeneration...
November 26, 2017: Experimental Neurology
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