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Spinal nerve damage

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https://www.readbyqxmd.com/read/28702736/changes-in-the-axon-terminals-of-primary-afferents-from-a-single-vibrissa-in-the-rat-trigeminal-nuclei-after-active-touch-deprivation-or-exposure-to-an-enriched-environment
#1
Julia Fernández-Montoya, Yasmina B Martin, Pilar Negredo, Carlos Avendaño
Lasting modifications of sensory input induce structural and functional changes in the brain, but the involvement of primary sensory neurons in this plasticity has been practically ignored. Here, we examine qualitatively and quantitatively the central axonal terminations of a population of trigeminal ganglion neurons, whose peripheral axons innervate a single mystacial vibrissa. Vibrissa follicles are heavily innervated by myelinated and unmyelinated fibers that exit the follicle mainly through a single deep vibrissal nerve...
July 12, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28680400/a-novel-small-molecule-gdnf-receptor-ret-agonist-bt13-promotes-neurite-growth-from-sensory-neurons-in-vitro-and-attenuates-experimental-neuropathy-in-the-rat
#2
Yulia A Sidorova, Maxim M Bespalov, Agnes W Wong, Oleg Kambur, Viljami Jokinen, Tuomas O Lilius, Ilida Suleymanova, Gunnar Karelson, Pekka V Rauhala, Mati Karelson, Peregrine B Osborne, Janet R Keast, Eija A Kalso, Mart Saarma
Neuropathic pain caused by nerve damage is a common and severe class of chronic pain. Disease-modifying clinical therapies are needed as current treatments typically provide only symptomatic relief; show varying clinical efficacy; and most have significant adverse effects. One approach is targeting either neurotrophic factors or their receptors that normalize sensory neuron function and stimulate regeneration after nerve damage. Two candidate targets are glial cell line-derived neurotrophic factor (GDNF) and artemin (ARTN), as these GDNF family ligands (GFLs) show efficacy in animal models of neuropathic pain (Boucher et al...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28674983/multiple-sclerosis-basic-and-clinical
#3
Katherine Buzzard, Wing Hei Chan, Trevor Kilpatrick, Simon Murray
Multiple sclerosis (MS) is the most common neurodegenerative disease affecting young adults in our community. It is a complex disease influenced by gender, genetic and environmental factors. MS is a chronic inflammatory disease of the central nervous system caused by aberrant immune activation resulting in damage to myelin sheaths within the brain and spinal cord and axonal loss. The demyelinating insult initially impairs the speed and efficiency of nerve cell function. In the majority of cases, this is followed by an innate endogenous repair response that can restore the myelin sheath and nerve cell function to relatively normal levels...
2017: Advances in Neurobiology
https://www.readbyqxmd.com/read/28668079/effects-of-bu-shen-yi-sui-capsule-on-nogoa-ngr-and-its-signaling-pathways-rhoa-rock-in-mice-with-experimental-autoimmune-encephalomyelitis
#4
Ling Fang, Yongqiang Wang, Qi Zheng, Tao Yang, Peiyuan Zhao, Hui Zhao, Qiuxia Zhang, Yuanyuan Zhao, Fang Qi, Kangning Li, Zhenzhen Chen, Junling Li, Nan Zhang, Yongping Fan, Lei Wang
BACKGROUND: Axon growth inhibitory factors NogoA/Nogo receptor (NgR) and its signaling pathways RhoA/Rho kinase (ROCK) play a critical role in the repair of nerve damage in multiple sclerosis (MS). Bu Shen Yi Sui Capsule (BSYSC) is an effective Chinese formula utilized to treat MS in clinical setting and noted for its potent neuroprotective effects. In this study, we focus on the effects of BSYSC on promoting nerve repair and the underlying mechanisms in mice with experimental autoimmune encephalomyelitis (EAE), an animal model of MS...
July 1, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28642653/clinical-application-of-a-drill-guide-template-for-pedicle-screw-placement-in-severe-scoliosis
#5
Xin Li, Yaoshen Zhang, Qiang Zhang, Changsong Zhao, Kun Liu
OBJECTIVE: To evaluate the accuracy and the effect of drill guide template for pedicle screw placement in severe scoliosis. METHOD: Eight patients with rigid scoliosis were enrolled, five males and three females, ranging from nine to 23 years old. A three-dimensional CT scan of the spine was performed and saved as a DICOM file type. The multi-level template was designed by Mimics software and manufactured according to the part of the most severe deformity. The drill template was placed on the corresponding vertebral surface...
March 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28605749/radiculopathy-in-a-patient-with-chronic-tophaceus-gout-vertebral-imaging
#6
Joana Borges, Cláudia Miguel, Susana Fernandes, Rui Leitão, Augusto Faustino
INTRODUCTION: Spinal involvement is infrequent in chronic gout. However, some cases of back pain with radiculopathy secondary to this etiology have been reported. CASE REPORT: 56-year old male patient, with history of arterial hypertension, hypertriglyceridemia, obesity, glucose intolerance and alcohol abuse, diagnosed with gout in his fifth decade of life. The patient was started on urate lowering therapy, with poor compliance, and evolved with sustained hyperuricemia, recurrent episodes of arthritis, and growth of gouty tophi on the elbows, wrists, hands and knees...
June 2, 2017: Acta Reumatológica Portuguesa
https://www.readbyqxmd.com/read/28587350/effects-of-hyperbaric-factors-on-lidocaine-induced-apoptosis-in-spinal-neurons-and-the-role-of-p38-mitogen-activated-protein-kinase-in-rats-with-diabetic-neuropathic-pain
#7
Xiaolan Zheng, Ling Chen, Xiaohong Du, Junying Cai, Shuchun Yu, Hongtao Wang, Guohai Xu, Zhenzhong Luo
The application of lidocaine can lead to nerve damage. Evidence suggests that patients with diabetic neuropathy are at a higher risk for neurotoxicity. In the present study, the successful induction of diabetic neuropathic pain (DNP) in rats via a high-sugar, high-fat diet and intraperitoneal injection of 1% streptozotocin was verified and pronounced tactile allodynia was observed. It was found that intrathecal injections of hyperbaric lidocaine produced motor blocks of longer durations in the DNP model rats than in nondiabetic rats, or in DNP model rats injected with isobaric lidocaine...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28554806/blockade-of-atp-p2x7-receptor-enhances-ischiatic-nerve-regeneration-in-mice-following-a-crush-injury
#8
Tatianne Ribeiro, Júlia Teixeira Oliveira, Fernanda Martins Almeida, Marcelo Amorim Tomaz, Paulo A Melo, Suelen Adriani Marques, Geanne Matos de Andrade, Ana Maria Blanco Martinez
Preventing damage caused by nerve degeneration is a great challenge. There is a growing body of evidence implicating extracellular nucleotides and their P2 receptors in many pathophysiological mechanisms. In this work we aimed to investigate the effects of the administration of Brilliant Blue G (BBG) and Pyridoxalphosphate-6-azophenyl-2', 4'- disulphonic acid (PPADS), P2X7 and P2 non-selective receptor antagonists, respectively, on sciatic nerve regeneration. Four groups of mice that underwent nerve crush lesion were used: two control groups treated with vehicle (saline), a group treated with BBG and a group treated with PPADS during 28 days...
May 26, 2017: Brain Research
https://www.readbyqxmd.com/read/28547859/giant-cell-tumor-of-the-mobile-spine-occurring-in-pregnancy-a-case-report-and-literature-review
#9
Kai Zheng, Ming Xu, Bing Wang, Xiu-Chun Yu, Yong-Cheng Hu
Giant cell tumor (GCT) is a benign, locally aggressive tumor that rarely occurs in the spine. They usually occur in patients between 20 and 40 years of age; some patients with GCT present in hospital with pregnancy. The management of these patients can be challenging. The current study reports a case of GCT located in the sixth thoracic vertebra of a 31-year-old female at 34 weeks of gestation. An osteolytic lesion, 3.5 cm × 3.5 cm in diameter, was identified on CT. An MRI test of the lesion revealed a soft tissue mass involving the T 6-7 vertebrae, extending to the right pedicle of the T 6 vertebra and causing significant spinal cord compression...
May 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28545516/improving-the-regenerative-potential-of-olfactory-ensheathing-cells-by-overexpressing-prostacyclin-synthetase-and-its-application-in-spinal-cord-repair
#10
May-Jywan Tsai, Chi-Ting Huang, Yong-San Huang, Ching-Feng Weng, Song-Kun Shyue, Ming-Chao Huang, Dann-Ying Liou, Yan-Ru Lin, Chu-Hsun Cheng, Huai-Sheng Kuo, Yilo Lin, Meng-Jen Lee, Wen-Hung Huang, Wen-Cheng Huang, Henrich Cheng
BACKGROUND: Olfactory ensheathing cells (OEC), specialized glia that ensheathe bundles of olfactory nerves, have been reported as a favorable substrate for axonal regeneration. Grafting OEC to injured spinal cord appears to facilitate axonal regeneration although the functional recovery is limited. In an attempt to improve the growth-promoting properties of OEC, we transduced prostacyclin synthase (PGIS) to OEC via adenoviral (Ad) gene transfer and examined the effect of OEC with enhanced prostacyclin synthesis in co-culture and in vivo...
May 25, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28534496/definitions-of-traumatic-conus-medullaris-and-cauda-equina-syndrome-a-systematic-literature-review
#11
E Brouwers, H van de Meent, A Curt, B Starremans, A Hosman, R Bartels
STUDY DESIGN: A systematic review. OBJECTIVES: Conus medullaris syndrome (CMS) and cauda equina syndrome (CES) are well-known neurological entities. It is assumed that these syndromes are different regarding neurological and functional prognosis. However, literature concerning spinal trauma is ambiguous about the exact definition of the syndromes. METHODS: A MEDLINE, EMBASE and Cochrane literature search was performed. We included original articles in which clinical descriptions of CMS and/or CES were mentioned in patients following trauma to the thoracolumbar spine...
May 23, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28534262/inflammatory-changes-in-paravertebral-sympathetic-ganglia-in-two-rat-pain-models
#12
Ai-Ling Li, Jing-Dong Zhang, Wenrui Xie, Judith A Strong, Jun-Ming Zhang
Injury to peripheral nerves can lead to neuropathic pain, along with well-studied effects on sensory neurons, including hyperexcitability, abnormal spontaneous activity, and neuroinflammation in the sensory ganglia. Neuropathic pain can be enhanced by sympathetic activity. Peripheral nerve injury may also damage sympathetic axons or expose them to an inflammatory environment. In this study, we examined the lumbar sympathetic ganglion responses to two rat pain models: ligation of the L5 spinal nerve, and local inflammation of the L5 dorsal root ganglion (DRG), which does not involve axotomy...
May 22, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28512618/incomplete-isolated-c7-root-injury-caused-by-gunshot-wound-a-case-report
#13
Ulvi Çiftçi, Ahmet Tolgay Akıncı, Emre Delen, Doğan Güçlühan
Gunshot wounds to the spine cause severe neurological and/or internal organs damages. Although most of publications in the literature are realized on military injuries, increased civilian arming which raises civilian gunshot injuries is a new social danger causing serious health problems. In gunshot injuries to the spine; vertebral column, spinal cord and nerve roots are damaged with direct, indirect and transient cavitation related mechanisms. In this case report, we present 24 years old male patient who had severe pain and monoparesis in left upper extremity followed by gunshot injury to the spine with clinical, radiological and postoperative follow-up findings...
April 2017: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/28477057/real-time-prediction-of-temperature-elevation-during-robotic-bone-drilling-using-the-torque-signal
#14
Arne Feldmann, Kate Gavaghan, Manuel Stebinger, Tom Williamson, Stefan Weber, Philippe Zysset
Bone drilling is a surgical procedure commonly required in many surgical fields, particularly orthopedics, dentistry and head and neck surgeries. While the long-term effects of thermal bone necrosis are unknown, the thermal damage to nerves in spinal or otolaryngological surgeries might lead to partial paralysis. Previous models to predict the temperature elevation have been suggested, but were not validated or have the disadvantages of computation time and complexity which does not allow real time predictions...
May 5, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28457862/the-vertebral-nerve-a-comprehensive-review-of-its-form-and-function
#15
REVIEW
Jaspreet Johal, Sharath S BelElary, Elizabeth A Lax, Gopi K Maharaja, Rod J Oskouian, Marios Loukas, R Shane Tubbs
The literature is littered with variable and scant reports of the vertebral nerve. The present paper reviews the literature regarding this nervous structure of the neck and attempts to clarify a number of issues surrounding its form, function, and implications of surgical manipulation. The nerve may arise from the stellate ganglion or the ansa subclavia, amongst a number of other structures. Additionally, the terminal insertion of the vertebral nerve varies in the reported literature, with authors observing various terminations...
July 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28450925/therapeutic-effect-of-apocynin-through-antioxidant-activity-and-suppression-of-apoptosis-and-inflammation-after-spinal-cord-injury
#16
Yijun Sun, Futai Gong, Jichao Yin, Xiaoyan Wang, Xiangyang Wang, Qing Sun, Zhiqiang Zhu, Xiaoqiang Su, Jie Zheng, Li Liu, Yang Li, Xinglv Hu, Jia Li
Spinal cord injury (SCI) is a devastating condition affecting hundreds of thousands of people worldwide annually. SCI results in activation of the inflammatory response and apoptosis, and generates oxidative stress, which has deleterious effects on the recovery of motor function. Apocynin, an inhibitor of NADPH oxidase, has been demonstrated to improve neuronal functional recovery in rat models of SCI. However, the efficacy of apocynin treatment post-SCI has not been investigated. The aim of this study was to observe the effects of apocynin on the repair of acute spinal cord damage in rats and to examine the potential beneficial effects...
March 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28445714/the-toll-like-receptor-2-agonist-pam3csk4-is-neuroprotective-after-spinal-cord-injury
#17
Nicole S Stivers, Nicolas Pelisch, Ben C Orem, Joshua Williams, Jacqueline M Nally, David P Stirling
Microglia/macrophage activation and recruitment following spinal cord injury (SCI) is associated with both detrimental and reparative functions. Stimulation of the innate immune receptor Toll-like receptor-2 (TLR2) has shown to be beneficial following SCI, and it increases axonal regeneration following optic nerve crush. However, the mechanism(s) remain unclear. As microglia express high levels of TLR2, we hypothesized that modulating the microglial response to injury using a specific TLR2 agonist, Pam3CSK4, would prevent secondary-mediated white matter degeneration following SCI...
August 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28437223/exercise-and-peripheral-nerve-grafts-as-a-strategy-to-promote-regeneration-after-acute-or-chronic-spinal-cord-injury
#18
Catherine C Theisen, Rahul Sachdeva, Scarlett Austin, Danielle Kulich, Victoria Kranz, John D Houle
Therapeutic interventions after spinal cord injury (SCI) routinely are designed to address multiple aspects of the primary and/or secondary damage that occurs. Exercise has a demonstrated efficacy for post-SCI complications such as cardiovascular dysfunction, neuropathic pain, and chronic inflammation, yet there is little understanding of the mechanisms by which improvements might result from this non-invasive approach. Here we review several of our observations of molecular and cellular changes within the injured spinal cord following acute or delayed exercise regimens that illustrate the potential for positive effects on neuroprotection and rehabilitation...
May 15, 2017: Journal of Neurotrauma
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
#19
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
#20
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...
June 1, 2017: Journal of Neuroscience Methods
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