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Spinal nerve damage

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https://www.readbyqxmd.com/read/28420964/identification-of-the-spinal-expression-profile-of-non-coding-rnas-involved-in-neuropathic-pain-following-spared-nerve-injury-by-sequence-analysis
#1
Jun Zhou, Qingming Xiong, Hongtao Chen, Chengxiang Yang, Youling Fan
Neuropathic pain (NP) is caused by damage to the nervous system, resulting in aberrant pain, which is associated with gene expression changes in the sensory pathway. However, the molecular mechanisms are not fully understood. A non-coding Ribose Nucleic Acid (ncRNA) is an RNA molecule that is not translated into a protein. NcRNAs are involved in many cellular processes, and mutations or imbalances of the repertoire within the body can cause a variety of diseases. Although ncRNAs have recently been shown to play a role in NP pathogenesis, the specific effects of ncRNAs in NP remain largely unknown...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28396177/consistent-induction-of-chronic-experimental-autoimmune-encephalomyelitis-in-c57bl-6-mice-for-the-longitudinal-study-of-pathology-and-repair
#2
Jonathan P C Hasselmann, Hawra Karim, Anna J Khalaj, Subir Ghosh, Seema K Tiwari-Woodruff
BACKGROUND: While many groups use experimental autoimmune encephalomyelitis (EAE) as a model to uncover therapeutic targets and understand the pathology underlying multiple sclerosis (MS), EAE protocol variability introduces discrepancies in central nervous system (CNS) pathogenesis and clinical disease, limiting the comparability between studies and slowing much-needed translational research. OPTIMIZED METHOD: Here we describe a detailed, reliable protocol for chronic EAE induction in C57BL/6 mice utilizing two injections of myelin oligodendrocyte glycoprotein (35-55) peptide mixed with Complete Freund's Adjuvant and paired with pertussis toxin...
April 7, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28391383/percutaneous-radiofrequency-ablation-for-spinal-osteoid-osteoma-and-osteoblastoma
#3
Ben Wang, Song Bo Han, Liang Jiang, Hui Shu Yuan, Chen Liu, Bin Zhu, Zhong Jun Liu, Xiao Guang Liu
PURPOSES: We sought to verify the efficacy and safety of RFA in spinal OO and osteoblastomas (OB) (Enneking Stage 2, S2). METHODS: We retrospectively reviewed patients treated in our hospital. Surgical resection was indicated for Enneking Stage 3 OB. RFA indications for spinal OO and OB (S2) were no neurological deficits, complete bone cortex around the lesion on computed tomography (CT), and cerebrospinal fluid between a lesion and the spinal cord/nerve root on magnetic resonance imaging...
April 8, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28389721/chemokines-in-neuron-glial-cell-interaction-and-pathogenesis-of-neuropathic-pain
#4
REVIEW
Zhi-Jun Zhang, Bao-Chun Jiang, Yong-Jing Gao
Neuropathic pain resulting from damage or dysfunction of the nervous system is a highly debilitating chronic pain state and is often resistant to currently available treatments. It has become clear that neuroinflammation, mainly mediated by proinflammatory cytokines and chemokines, plays an important role in the establishment and maintenance of neuropathic pain. Chemokines were originally identified as regulators of peripheral immune cell trafficking and were also expressed in neurons and glial cells in the central nervous system...
April 7, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28389474/perineurial-glial-plasticity-and-the-role-of-tgf-%C3%AE-in-the-development-of-the-blood-nerve-barrier
#5
Angela D Morris, Gwendolyn M Lewis, Sarah Kucenas
Precisely orchestrated interactions between spinal motor axons and their ensheathing glia are vital for forming and maintaining functional spinal motor nerves. Following perturbations to peripheral myelinating glial cells, centrally-derived oligodendrocyte progenitor cells (OPCs) ectopically exit the spinal cord and myelinate peripheral nerves in myelin with central nervous system (CNS) characteristics. However, whether remaining peripheral ensheathing glia, such as perineurial glia, properly encase the motor nerve despite this change in glial cell and myelin composition, remains unknown...
April 7, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28381927/the-effects-of-minocycline-on-spinal-root-avulsion-injury-in-rat-model
#6
Tan Yew Chin, Sim Sze Kiat, Hizal Ghazali Faizul, Wutian Wu, Jafri Malin Abdullah
BACKGROUND: The neuroprotective role of minocycline in the treatment of brachial plexus injury is controversial. OBJECTIVE: To study the neuroprotective effect of minocycline via different routes in adult Sprague Dawley rats with brachial plexus injury. METHODS: The C7 nerve roots of the animals were avulsed via an anterior extravertebral approach. Traction force was used to transect the ventral motor nerve roots at the preganglionic level...
March 2017: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/28356028/the-application-of-nanomaterials-in-stem-cell-therapy-for-some-neurological-diseases
#7
Guilong Zhang, Ahsan Ali Khan, Hao Wu, Lukui Chen, Yuchun Gu, Ning Gu
Stem cell therapy provides great promising therapeutic benefits for various neurological disorders. Cell transplantation has emerged as cell replacement application for nerve damage. Recently, nanomaterials obtain wide development in various industrial and medical fields, and nanoparticles have been applied to neuro-medical field for tracking and treating nervous system diseases. Combining stem cell with nanotechnology has raised more and more attentions; and it has demonstrated that it has huge effects on clinical diagnosis and therapeutics in multiple central nervous system diseases, meanwhile, improving prognosis...
March 28, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28346321/growth-arrest-and-dna-damage-inducible-protein-45%C3%AE-mediated-dna-demethylation-of-voltage-dependent-t-type-calcium-channel-3-2-subunit-enhances-neuropathic-allodynia-after-nerve-injury-in-rats
#8
Cheng-Yuan Lai, Ming-Chun Hsieh, Yu-Cheng Ho, An-Sheng Lee, Hsueh-Hsiao Wang, Jen-Kun Cheng, Yat-Pang Chau, Hsien-Yu Peng
BACKGROUND: Growth arrest and DNA-damage-inducible protein 45β reactivates methylation-silenced neural plasticity-associated genes through DNA demethylation. However, growth arrest and DNA-damage-inducible protein 45β-dependent demethylation contributes to neuropathic allodynia-associated spinal plasticity remains unclear. METHODS: Adult male Sprague-Dawley rats (654 out of 659) received a spinal nerve ligation or a sham operation with or without intrathecal application of one of the following: growth arrest and DNA-damage-inducible protein 45β messenger RNA-targeted small interfering RNA, lentiviral vector expressing growth arrest and DNA-damage-inducible protein 45β, Ro 25-6981 (an NR2B-bearing N-methyl-D-aspartate receptor antagonist), or KN-93 (a calmodulin-dependent protein kinase II antagonist) were used for behavioral measurements, Western blotting, immunofluorescence, dot blots, detection of unmodified cytosine enrichment at cytosine-phosphate-guanine site, chromatin immunoprecipitation quantitative polymerase chain reaction analysis, and slice recordings...
March 27, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28341636/relief-from-neuropathic-pain-by-blocking-of-the-platelet-activating-factor-pain-loop
#9
Hideo Shindou, Seiji Shiraishi, Suzumi M Tokuoka, Yoshikazu Takahashi, Takeshi Harayama, Takaya Abe, Kana Bando, Kanako Miyano, Yoshihiro Kita, Yasuhito Uezono, Takao Shimizu
Neuropathic pain resulting from peripheral neuronal damage is largely resistant to treatment with currently available analgesic drugs. Recently, ATP, lysophosphatidic acid, and platelet-activating factor (PAF) have been reported to play important inductive roles in neuropathic pain. In the present study, we found that pain-like behaviors resulting from partial sciatic nerve ligation (PSL) were largely attenuated by deficiency of lysophosphatidylcholine acyltransferase (LPCAT)2, which is one of the PAF biosynthetic enzymes...
March 24, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28332092/the-spectrum-of-neuropathological-changes-associated-with-congenital-zika-virus-infection
#10
Leila Chimelli, Adriana S O Melo, Elyzabeth Avvad-Portari, Clayton A Wiley, Aline H S Camacho, Vania S Lopes, Heloisa N Machado, Cecilia V Andrade, Dione C A Dock, Maria Elisabeth Moreira, Fernanda Tovar-Moll, Patricia S Oliveira-Szejnfeld, Angela C G Carvalho, Odile N Ugarte, Alba G M Batista, Melania M R Amorim, Fabiana O Melo, Thales A Ferreira, Jacqueline R L Marinho, Girlene S Azevedo, Jeime I B F Leal, Rodrigo F Madeiro da Costa, Stevens Rehen, Monica B Arruda, Rodrigo M Brindeiro, Rodrigo Delvechio, Renato S Aguiar, Amilcar Tanuri
A major concern associated with ZIKV infection is the increased incidence of microcephaly with frequent calcifications in infants born from infected mothers. To date, postmortem analysis of the central nervous system (CNS) in congenital infection is limited to individual reports or small series. We report a comprehensive neuropathological study in ten newborn babies infected with ZIKV during pregnancy, including the spinal cords and dorsal root ganglia (DRG), and also muscle, pituitaries, eye, systemic organs, and placentas...
March 22, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28324618/thermogelling-chitosan-lactate-hydrogel-improves-functional-recovery-after-a-c2-spinal-cord-hemisection-in-rat
#11
Katarzyna Nawrotek, Tanguy Marqueste, Zofia Modrzejewska, Roman Zarzycki, Agnieszka Rusak, Patrick Decherchi
The present study was designed to provide an appropriate micro-environment for regenerating axotomized neurons and proliferating/migrating cells. Because of its intrinsic permissive properties, biocompatibility and biodegradability, we chose to evaluate the therapeutic effectiveness of a chitosan-based biopolymer. The biomaterial toxicity was measured through in vitro test based on fibroblast cell survival on thermogelling chitosan lactate hydrogel substrate and then polymer was implanted into a C2 hemisection of the rat spinal cord...
March 21, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28319551/a-contemporary-medicolegal-analysis-of-implanted-devices-for-chronic-pain-management
#12
Christopher R Abrecht, Penny Greenberg, Ellen Song, Richard D Urman, James P Rathmell
BACKGROUND: Analysis of closed malpractice claims allows the study of rare but serious complications and likely results in improved patient safety by raising awareness of such complications. Clinical studies and closed claims analyses have previously reported on the common complications associated with intrathecal drug delivery systems (IDDS) and spinal cord stimulators (SCS). This study provides a contemporary analysis of claims from within the past 10 years. METHODS: We performed a closed claims analysis for a period January 1, 2009 to December 31, 2013 for cases with pain medicine as the primary service...
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28298927/therapeutic-potential-of-olfactory-ensheathing-cells-and-mesenchymal-stem-cells-in-spinal-cord-injuries
#13
REVIEW
Zadroga Anna, Jezierska-Woźniak Katarzyna, Czarzasta Joanna, Monika Barczewska, Wojtkiewicz Joanna, Maksymowicz Wojciech
Spinal cord injury (SCI) is a devastating neurological condition that affects individuals worldwide, significantly reducing quality of life, for both patients and their families. In recent years there has been a growing interest in cell therapy potential in the context of spinal cord injuries. The present review aims to discuss and compare the restorative approaches based on the current knowledge, available spinal cord restorative cell therapies, and use of selected cell types. However, treatment options for spinal cord injury are limited, but rehabilitation and experimental technologies have been found to help maintain or improve remaining nerve function in some cases...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28255948/what-adverse-events-and-injuries-are-cited-in-anesthesia-malpractice-claims-for-nonspine-orthopaedic-surgery
#14
Christopher D Kent, Linda S Stephens, Karen L Posner, Karen B Domino
BACKGROUND: Malpractice claims that arise during the perioperative care of patients receiving orthopaedic procedures will frequently involve both orthopaedic surgeons and anesthesiologists. The Anesthesia Closed Claims database contains anesthesia malpractice claim data that can be used to investigate patient safety events arising during the care of orthopaedic patients and can provide insight into the medicolegal liability shared by the two specialties. QUESTIONS/PURPOSES: (1) How do orthopaedic anesthetic malpractice claims differ from other anesthesia claims with regard to patient and case characteristics, common events and injuries, and liability profile? (2) What are the characteristics of patients who had neuraxial hematomas after spinal and epidural anesthesia for orthopaedic procedures? (3) What are the characteristics of patients who had orthopaedic anesthesia malpractice claims for central ischemic neurologic injury occurring during shoulder surgery in the beach chair position? (4) What are the characteristics of patients who had malpractice claims for respiratory depression and respiratory arrests in the postoperative period? METHODS: The Anesthesia Closed Claims Project database was the source of data for this study...
March 2, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28251660/neuronal-and-microglial-mechanisms-for-neuropathic-pain-in-the-spinal-dorsal-horn-and-anterior-cingulate-cortex
#15
REVIEW
Makoto Tsuda, Kohei Koga, Tao Chen, Min Zhuo
Neuropathic pain is a debilitating chronic pain condition occurring after damage in the nervous system and is refractory to the currently available treatments. Major challenges include elucidating its mechanisms and developing new medications to treat it. Nerve injury-induced pain hypersensitivity involves aberrant excitability in spinal dorsal horn (SDH) neurons as a consequence of dysfunction of inhibitory interneurons and of hyperactivity of glial cells, especially microglia, the immune cells of the central nervous system...
March 2, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28225648/safety-of-autologous-human-schwann-cell-transplantation-in-subacute-thoracic-spinal-cord-injury
#16
Kim D Anderson, James D Guest, W Dalton Dietrich, Mary Bartlett Bunge, Rosie Curiel, Marine Dididze, Barth A Green, Aisha Khan, Damien D Pearse, Efrat Saraf-Lavi, Eva Widerström-Noga, Patrick Wood, Allan D Levi
The rationale for implantation of autologous human Schwann cells (SCs) in persons with subacute spinal cord injury (SCI) is based on evidence that transplanted SCs are neuroprotective, support local axonal plasticity, and are capable of myelinating axons. A Phase I clinical trial was conducted to evaluate the safety of autologous human SC transplantation into the injury epicenter of six subjects with subacute SCI. The trial was an open-label, unblinded, non-randomized, non-placebo controlled study with a dose escalation design and standard medical rehabilitation...
March 21, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28216748/comparison-of-occipitocervical-and-atlantoaxial-fusion-in-treatment-of-unstable-jefferson-fractures
#17
Yong Hu, Zhen-Shan Yuan, Christopher K Kepler, Wei-Xin Dong, Xiao-Yang Sun, Jiao Zhang
BACKGROUND: Controversy exists regarding the management of unstable Jefferson fractures, with some surgeons performing reduction and immobilization of the patient in a halo vest and others performing open reduction and internal fixation. This study compares the clinical and radiological outcome parameters between posterior atlantoaxial fusion (AAF) and occipitocervical fusion (OCF) constructs in the treatment of the unstable atlas fracture. MATERIALS AND METHODS: 68 consecutive patients with unstable Jefferson fractures treated by AAF or OCF between October 2004 and March 2011 were included in this retrospective evaluation from institutional databases...
January 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28214515/igg-degrading-enzyme-of-streptococcus-pyogenes-ides-prevents-disease-progression-and-facilitates-improvement-in-a-rabbit-model-of-guillain-barr%C3%A3-syndrome
#18
Yuzhong Wang, Qiguang Shi, Hui Lv, Ming Hu, Weifang Wang, Quanquan Wang, Baojun Qiao, Guorong Zhang, Zhanyun Lv, Christian Kjellman, Sofia Järnum, Lena Winstedt, Yong Zhang, Jiao Wen, Yanlei Hao, Nobuhiro Yuki
Autoantibodies binding to peripheral nerves followed by complement deposition and membrane attack complex formation results in nerve damage in Guillain-Barré syndrome (GBS). Strategies to remove the pathogenic autoantibodies or block the complement deposition benefit most patients with GBS. Immunoglobulin G-degrading enzyme of Streptococcus pyogenes (IdeS) is a cysteine protease which cleaves IgG antibodies into F(ab')2 and Fc fragments. In this study, using a rabbit model of axonal GBS, acute motor axonal neuropathy (AMAN), we demonstrated that IdeS treatment significantly reduced the disruption of Nav channels as well as activated C3 deposition at the anterior spinal root nodes of Ranvier in AMAN rabbits...
February 16, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28203046/neuroinflammation-as-fuel-for-axonal-regeneration-in-the-injured-vertebrate-central-nervous-system
#19
REVIEW
Ilse Bollaerts, Jessie Van Houcke, Lien Andries, Lies De Groef, Lieve Moons
Damage to the central nervous system (CNS) is one of the leading causes of morbidity and mortality in elderly, as repair after lesions or neurodegenerative disease usually fails because of the limited capacity of CNS regeneration. The causes underlying this limited regenerative potential are multifactorial, but one critical aspect is neuroinflammation. Although classically considered as harmful, it is now becoming increasingly clear that inflammation can also promote regeneration, if the appropriate context is provided...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28186109/astragali-radix-could-it-be-an-adjuvant-for-oxaliplatin-induced-neuropathy
#20
Lorenzo Di Cesare Mannelli, Alessandra Pacini, Laura Micheli, Angelo Pietro Femia, Mario Maresca, Matteo Zanardelli, Alfredo Vannacci, Eugenia Gallo, Anna Rita Bilia, Giovanna Caderni, Fabio Firenzuoli, Alessandro Mugelli, Carla Ghelardini
Neurotoxicity is a major side effect of platinum derivatives both during and after treatment. In the absence of effective pharmacological compounds, the opportunity to identify safe adjuvant treatments among medicinal plants seems appropriate. Astragali radix is an adaptogenic herbal product recently analyzed in platinum-treated cancer patients. With the aim of evaluating the anti-neuropathic profile of Astragali radix, a previously characterized aqueous (Aqu) and two hydroalcoholic (20%HA and 50%HA) extracts were tested in a rat model of oxaliplatin-induced neuropathy...
February 10, 2017: Scientific Reports
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