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https://www.readbyqxmd.com/read/28812185/reliability-of-standing-weight-bearing-0-25t-mr-imaging-findings-and-positional-changes-in-the-lumbar-spine
#1
Bjarke B Hansen, Philip Hansen, Anders F Christensen, Charlotte Trampedach, Zoreh Rasti, Henning Bliddal, Mikael Boesen
OBJECTIVE: To test the reliability and absolute agreement of common degenerative findings in standing positional magnetic resonance imaging (pMRI). METHODS AND MATERIALS: Low back pain patients with and without sciatica were consecutively enrolled to undergo a supine and standing pMRI. Three readers independently evaluated the standing pMRI for herniation, spinal stenosis, spondylolisthesis, HIZ lesions and facet joint effusion. The evaluation included a semi-quantitative grading of spinal stenosis, foraminal stenosis and spinal nerve root compression...
August 15, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28811104/a-double-determination-of-central-motor-conduction-time-in-the-assessment-of-hirayama-disease
#2
Chaojun Zheng, Dongqing Zhu, Feizhou Lu, Yu Zhu, Xiaosheng Ma, Xinlei Xia, Jianyuan Jiang
OBJECTIVE: To investigate central motor conduction time (CMCT) in patients with Hirayama disease (HD) and to analyse the role of motor nerve root lesions in the pathogenesis of HD. METHODS: CMCT measured by F-wave (CMCT-F) and by paravertebral magnetic stimulation (CMCT-M) was performed on both abductor pollicis brevis (APB) and abductor digiti minimi (ADM) in 41 HD patients and 22 controls. All patients underwent neck-flexion magnetic resonance imaging evaluation...
July 31, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28809870/-case-report-iatrogenic-shoulder-pain-syndrome-following-spinal-accessory-nerve-injury-during-lateral-cervical-neck-dissection-for-tongue-cancer-the-role-of-rehabilitation-and-ethical-deontological-issues
#3
Gianpaolo Ronconi, Antonio Gioacchino Spagnolo, Giorgio Ferriero, Silvia Giovannini, Eugenia Amabile, Giulio Maccauro, Paola Emilia Ferrara
The shoulder pain syndrome is the most frequent complication of lateral cervical neck dissection and may be caused by iatrogenic injury to the spinal accessory nerve, causing pain and functional limitation of the upper limb and of the cervical spine. Interdisciplinary collaboration and early rehabilitation can reduce the consequences of disability and the possible issues that can arise due to inadequate management of the problem.
May 2017: Igiene e Sanità Pubblica
https://www.readbyqxmd.com/read/28809704/kilohertz-electrical-stimulation-nerve-conduction-block-effects-of-electrode-material
#4
Yogi A Patel, Brian S Kim, Robert J Butera
Kilohertz electrical stimulation (KES) has enabled a novel new paradigm for spinal cord and peripheral nerve stimulation to treat a variety of neurological diseases. KES can excite or inhibit nerve activity and is used in many clinical devices today. However, the impact of different electrode materials on the efficacy of KES is unknown. We investigated the effect of different electrode materials and their respective charge injection mechanisms on KES nerve block thresholds using 20 and 40 kHz current-controlled sinusoidal KES waveforms...
August 10, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28808582/ludwig-guttmann-s-memorandum-a-review-on-the-surgical-aspects-of-spinal-cord-injuries-written-in-1944-for-the-nerve-injury-committee-of-the-medical-research-council-with-notes-and-commentary
#5
https://www.readbyqxmd.com/read/28807781/engrailed-controls-epaxial-hypaxial-muscle-innervation-and-the-establishment-of-vertebrate-three-dimensional-mobility
#6
Mohi U Ahmed, Ashish K Maurya, Louise Cheng, Erika C Jorge, Frank R Schubert, Pascal Maire, M Albert Basson, Philip W Ingham, Susanne Dietrich
Chordates are characterised by contractile muscle on either side of the body that promotes movement by side-to-side undulation. In the lineage leading to modern jawed vertebrates (crown group gnathostomes), this system was refined: body muscle became segregated into distinct dorsal (epaxial) and ventral (hypaxial) components that are separately innervated by the medial and hypaxial motors column, respectively, via the dorsal and ventral ramus of the spinal nerves. This allows full three-dimensional mobility, which in turn was a key factor in their evolutionary success...
August 11, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28807492/neuropsychiatric-involvement-in-lupus-is-associated-with-the-nogo-a-ngr1-pathway
#7
Hong-Wei Lei, Jing-Yuan Wang, Qiu-Jie Dang, Fan Yang, Xin Liu, Ji-Hui Zhang, Yang Li
Neuroinflammation- and neurodegeneration-induced nerve injury may represent important components of neuropsychiatric lupus (NPSLE). Myelin-associated neurite outgrowth inhibitor (Nogo)-a and its receptor, NgR1, limit recovery of the adult central nervous system after injury. We detected a soluble Nogo-a product in the cerebral spinal fluid of patients with NPSLE. In a mouse model of lupus, aging was associated with an increase in Nogo-a positive neurons, diminished myelin sheaths, enhanced pro-inflammatory cytokines, and impaired cognition and memory...
July 9, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28806211/the-opiorphin-analog-str-324-decreases-sensory-hypersensitivity-in-a-rat-model-of-neuropathic-pain
#8
Alain Van Elstraete, Philippe Sitbon, Leila Hamdi, Victor Juarez-Perez, Jean-Xavier Mazoit, Dan Benhamou, Catherine Rougeot
BACKGROUND: Neuropathic pain represents a therapeutic challenge, and treatments with increased efficacy and tolerability still need to be developed. Opiorphin protects endogenous enkephalins from degradation, potentiating enkephalin-dependent analgesia via the activation of opioid pathways. Enkephalins are natural ligands of opioid receptors, with strong affinity for δ-opioid receptors. Expression of functional δ-opioid receptors increases in sensory neurons after peripheral nerve injury in neuropathic pain models...
August 10, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28804976/demyelinating-neuropathy-in-a-6-year-old-girl-with-autism-spectrum-disorder
#9
Akiko Kamata, Kazuhiro Muramatsu, Noriko Sawaura, Nishiki Makioka, Tomomi Ogata, Makoto Kuwashima, Hirokazu Arakawa
Herein we report the case of a 6-year-old girl with autism spectrum disorder (ASD) and weakness in the distal portion of the right upper limb. Although difficult to perform, nerve conduction studies indicated demyelinating neuropathy. Magnetic resonance imaging (MRI) showed swelling a nd high-intensity signals in the right brachial plexus and cervical spinal roots. The symptoms recovered after a single course of i.v. immunoglobulin. Electrophysiological indices and MRI findings also improved after treatment...
August 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28804608/remyelination-improvement-after-neurotrophic-factors-secreting-cells-transplantation-in-rat-spinal-cord-injury
#10
Shahnaz Razavi, Nazem Ghasemi, Mohammad Mardani, Hossein Salehi
OBJECTIVES: Neurotrophic factors secreting cells (NTS-SCs) may be a superior cell source for cell-based therapy in neurodegenerative diseases. NTS-SCs are able to secrete some neurotrophic Such as nerve growth factor and glia-derived neurotrophic factor. Our primary aim was to assess transplantation of neurotrophic factor secreting cells derived from human adipose-derived stem cells (hADSCs) into the damaged spinal cord rats and determine the potential of these cells in remyelination...
April 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28803817/6mwt-can-identify-type-3-sma-patients-with-neuromuscular-junction-dysfunction
#11
REVIEW
Maria Carmela Pera, Marco Luigetti, Marika Pane, Giorgia Coratti, Nicola Forcina, Lavinia Fanelli, Elena S Mazzone, Laura Antonaci, Leonardo Lapenta, Concetta Palermo, Domiziana Ranalli, Giuseppe Granata, Mauro Lomonaco, Serenella Servidei, Eugenio Mercuri
The aim of the study was to establish if the decrease in gait velocity on the 6 minute walk test relates to signs of neuromuscular junction dysfunction in spinal muscular atrophy type 3 patients. 6 minute walk test and low-rate repetitive nerve stimulation test were performed in fifteen ambulant patients with spinal muscular atrophy type 3 of age between 9 and 66 years. The 6 minute walk distance ranged between 66 and 575 m. The difference between the first and the 6th minute ranged between 0 and -69%. The low-rate repetitive nerve stimulation test measured in % of loss ranged between -31...
July 14, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28801220/multiple-reflex-pathways-contribute-to-bladder-activation-by-intraurethral-stimulation-in-persons-with-spinal-cord-injury
#12
Meredith J McGee, Brandon D Swan, Zachary C Danziger, Cindy L Amundsen, Warren M Grill
OBJECTIVES: To measure the urodynamic effects of electrical co-stimulation of two individual sites in the proximal and distal urethra in persons with spinal cord injury (SCI). This work was motivated by preclinical findings that selective co-stimulation of the cranial urethral sensory nerve and the dorsal genital nerve, which innervate the proximal and distal portions of the urethra, respectively, increased reflex bladder activation and voiding efficiency. METHODS: Electrical co-stimulation of urethral afferents was conducted in persons with chronic SCI during urodynamics...
August 8, 2017: Urology
https://www.readbyqxmd.com/read/28801063/chondroitin-sulfates-do-not-impede-axonal-regeneration-in-goldfish-spinal-cord
#13
Akihito Takeda, Soichiro Okada, Kengo Funakoshi
Chondroitin sulfate proteoglycans produced in glial scar tissue are a major inhibitory factor for axonal regeneration after central nervous system injury in mammals. The inhibition is largely due to chondroitin sulfates, whose effects differ according to the sulfation pattern. In contrast to mammals, fish nerves spontaneously regenerate beyond the scar tissue after spinal cord injury, although the mechanisms that allow for axons to pass through the scar are unclear. Here, we used immunohistochemistry to examine the expression of two chondroitin sulfates with different sulfation variants at the lesion site in goldfish spinal cord...
August 8, 2017: Brain Research
https://www.readbyqxmd.com/read/28799195/sacral-nerve-stimulation-for-constipation-and-fecal-incontinence-in-children-long-term-outcomes-patient-benefit-and-parent-satisfaction
#14
P L Lu, I J N Koppen, D K Orsagh-Yentis, K Leonhart, E J Ambeba, K J Deans, P C Minneci, S Teich, K A Diefenbach, S A Alpert, M A Benninga, D Yacob, C Di Lorenzo
OBJECTIVE: To evaluate the long-term efficacy of sacral nerve stimulation (SNS) in children with constipation and describe patient benefit and parent satisfaction. METHODS: Using a prospective patient registry, we identified patients <21 years old with constipation treated with SNS for >2 years. We compared symptoms, medical treatment, PedsQL Gastrointestinal Symptom Scale (GSS), Fecal Incontinence Quality of Life Scale (FIQL), and Fecal Incontinence Severity Index (FISI) before SNS and at follow-up...
August 10, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28795477/exogenous-serotonin-regulates-colorectal-motility-via-the-5-ht2-and-5-ht3-receptors-in-the-spinal-cord-of-rats
#15
H Nakamori, K Naitou, Y Sano, H Shimaoka, T Shiina, Y Shimizu
BACKGROUND: We previously reported that intrathecal injection of noradrenaline or dopamine causes enhancement of colorectal motility. As these monoamines are neurotransmitters of descending pain inhibitory pathways in the spinal cord, we hypothesized that serotonin, which is one of the neurotransmitters involved in descending pain inhibition, also influences the lumbosacral defecation center. Therefore, we examined whether serotonin acting on the spinal defecation center enhances colorectal motility...
August 10, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28794655/p2y12-and-p2y13-receptors-involved-in-adp%C3%AE-s-induced-the-release-of-il-1%C3%AE-il-6-and-tnf-%C3%AE-from-cultured-dorsal-horn-microglia
#16
Pei-Wen Liu, Ming-Xia Yue, Rui Zhou, Juan Niu, Du-Juan Huang, Tao Xu, Pei Luo, Xiao-Hong Liu, Jun-Wei Zeng
OBJECTIVE: P2 receptors have been implicated in the release of neurotransmitter and pro-inflammatory cytokines due to their response to neuroexcitatory substances in the microglia. Dorsal horn P2Y12 and P2Y13 receptors are involved in the development of pain behavior induced by peripheral nerve injury. However, it is not known whether P2Y12 and P2Y13 receptors activation is associated with the expression and the release of interleukin-1B (IL-1β), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) in cultured dorsal spinal cord microglia...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28794635/electrophysiological-findings-of-turkish-patients-with-restless-legs-syndrome
#17
Ahmet Özsimsek, Hasan Rifat Koyuncuoglu
We aimed to investigate changes in electrophysiological findings in Turkish patients with restless legs syndrome (RLS), including F-wave latency (FWL), peripheral silent period (PSP), and Hoffmann reflex. The study took place in a university hospital in Turkey and involved 30 newly diagnosed RLS patients and 30 healthy controls who were matched for age and gender. Participant's demographics (age, gender, weight, and height), laboratory findings, and electrophysiological test outcomes were gathered and analyzed...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28792585/centrally-mediated-late-motor-recovery-after-botulinum-toxin-injection-case-reports-and-a-review-of-current-evidence
#18
Manuel F Mas, Sheng Li, Gerard E Francisco
OBJECTIVE: Botulinum neurotoxin is commonly utilized in neurorehabilitation as a treatment for focal spasticity. Clinical experience has yielded observations of late motor recovery after intramuscular injection of botulinum neurotoxin, that are not readily explained by the classical mechanism of action of the neurotoxin in controlling spasticity. These findings have triggered speculation regarding a botulinum neurotoxin mediated effect at the central level after peripheral intervention...
August 9, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28790970/structural-and-functional-substitution-of-deleted-primary-sensory-neurons-by-new-growth-from-intrinsic-spinal-cord-nerve-cells-an-alternative-concept-in-reconstruction-of-spinal-cord-circuits
#19
Nicholas D James, Maria Angéria, Elizabeth J Bradbury, Peter Damberg, Stephen B McMahon, Mårten Risling, Thomas Carlstedt
In a recent clinical report, return of the tendon stretch reflex was demonstrated after spinal cord surgery in a case of total traumatic brachial plexus avulsion injury. Peripheral nerve grafts had been implanted into the spinal cord to reconnect to the peripheral nerves for motor and sensory function. The dorsal root ganglia (DRG) containing the primary sensory nerve cells had been surgically removed in order for secondary or spinal cord sensory neurons to extend into the periphery and replace the deleted DRG neurons...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28782237/comparison-of-bladder-inhibitory-effects-of-patterned-spinal-nerve-stimulation-with-conventional-neuromodulation-in-the-rat
#20
Xin Su, Heather A Simenson, Kunal Paralikar, Heather D Orser
OBJECTIVES: The present study compared the effectiveness of patterned frequency of spinal nerve stimulation (SNS) with continuous, fixed-frequency nerve stimulation in an animal model of the bladder reflex contraction (BRC). MATERIALS AND METHODS: In anesthetized female rats, wire electrodes were placed under each of the L6 spinal nerve to produce bilateral SNS. A cannula was placed into the bladder via the urethra, and the urethra was ligated to ensure an isovolumetric bladder...
August 7, 2017: Neuromodulation: Journal of the International Neuromodulation Society
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