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Spinal cord stimulation

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https://www.readbyqxmd.com/read/28811104/a-double-determination-of-central-motor-conduction-time-in-the-assessment-of-hirayama-disease
#1
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/28809704/kilohertz-electrical-stimulation-nerve-conduction-block-effects-of-electrode-material
#2
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/28808583/successful-spinal-cord-stimulation-for-neuropathic-below-level-spinal-cord-injury-pain-following-complete-paraplegia-a-case-report
#3
Tim A Reck, Gunther Landmann
INTRODUCTION: Neuropathic pain is common in patients with spinal cord injury (SCI) and often difficult to treat. We report a case where epidural spinal cord stimulation (SCS) below the level of injury has been successfully applied in a patient with a complete spinal cord lesion. CASE PRESENTATION: A 53-year-old female presented with neuropathic below-level SCI pain of both lower legs and feet due to complete SCI below T5. Time and pain duration since injury was 2 years...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28803750/motor-cortex-and-spinal-cord-neuromodulation-promote-corticospinal-tract-axonal-outgrowth-and-motor-recovery-after-cervical-contusion-spinal-cord-injury
#4
N Zareen, M Shinozaki, D Ryan, H Alexander, A Amer, D Truong, N Khadka, A Sarkar, S Naeem, M Bikson, J Martin
Cervical injuries are the most common form of SCI. In this study, we used a neuromodulatory approach to promote skilled movement recovery and repair of the corticospinal tract (CST) after a moderately severe C4 midline contusion in adult rats. We used bilateral epidural intermittent theta burst (iTBS) electrical stimulation of motor cortex to promote CST axonal sprouting and cathodal trans-spinal direct current stimulation (tsDCS) to enhance spinal cord activation to motor cortex stimulation after injury. We used Finite Element Method (FEM) modeling to direct tsDCS to the cervical enlargement...
August 10, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28801220/multiple-reflex-pathways-contribute-to-bladder-activation-by-intraurethral-stimulation-in-persons-with-spinal-cord-injury
#5
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/28799195/sacral-nerve-stimulation-for-constipation-and-fecal-incontinence-in-children-long-term-outcomes-patient-benefit-and-parent-satisfaction
#6
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/28795657/body-system-effects-of-a-multi-modal-training-program-targeting-chronic-motor-complete-thoracic-spinal-cord-injury
#7
Katie Gant, Kathleen Nagle, Rachel Cowan, Edelle Field-Fote, Mark Nash, Jochen Kressler, Christine K Thomas, Mabelin Castellanos, Eva Widerstrom-Noga, Kimberly D Anderson
The safety and efficacy of pharmacologic and cellular transplantation strategies are currently being evaluated in people with spinal cord injury. In studies of people with chronic spinal cord injuries, it is thought that functional recovery will be best achieved when drug or cell therapies are combined with rehabilitation protocols. However, any functional recovery due to the therapy may be confounded by the conditioned state of the body and by training-induced effects on neuroplasticity. For this reason, we sought to investigate the effects of a multi-modal training program on several body systems...
August 10, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28791051/a-unique-case-for-spinal-cord-stimulation-successful-treatment-of-small-fiber-neuropathy-pain-using-multiple-spinal-cord-stimulators
#8
Maxim Eckmann, Alexander Papanastassiou, Mark Awad
Spinal cord stimulators have commonly been used to treat multiple pain conditions. This case report represents a unique case of using multiple spinal cord stimulators for widespread small fiber neuropathy pain. This case report concerns patient JJ who first presented with generalized neuropathic pain. His pain was an intermittent burning, stinging quality that originally focused in both of his feet and progressed to include his legs and arms and eventually involved his entire body. The pain would last moments to hours at least daily...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28790168/microrna-211-bdnf-axis-regulates-lps-induced-proliferation-of-normal-human-astrocyte-through-pi3k-akt-pathway
#9
Kexiang Zhang, Song Wu, Zhiyue Li, Jiahui Zhou
Spinal cord injury (SCI) makes a major contribution to disability and death in the worldwide. Reactive astrogliosis, a typical feature after SCI, which undergoes varying molecular and morphological changes, is ubiquitous but poorly understood. Reactive astrogliosis contributes to glial scar formation that impedes axonal regeneration. Brain-derived Neurotrophic Factor (BDNF), a well-established neurotrophic factor, exerts neuroprotective and growth-promoting effects on a variety of neuronal populations after injury...
August 8, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28782181/public-regulatory-databases-as-a-source-of-insight-for-neuromodulation-devices-stimulation-parameters
#10
REVIEW
Doe Kumsa, G Karl Steinke, Gregory F Molnar, Eric M Hudak, Fred W Montague, Shawn C Kelley, Darrel F Untereker, Alan Shi, Benjamin P Hahn, Chris Condit, Hyowon Lee, Dawn Bardot, Jose A Centeno, Victor Krauthamer, Pavel A Takmakov
OBJECTIVE: The Shannon model is often used to define an expected boundary between non-damaging and damaging modes of electrical neurostimulation. Numerous preclinical studies have been performed by manufacturers of neuromodulation devices using different animal models and a broad range of stimulation parameters while developing devices for clinical use. These studies are mostly absent from peer-reviewed literature, which may lead to this information being overlooked by the scientific community...
August 7, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28781176/electrical-neuromodulation-of-the-respiratory-system-after-spinal-cord-injury
#11
REVIEW
Jan T Hachmann, Peter J Grahn, Jonathan S Calvert, Dina I Drubach, Kendall H Lee, Igor A Lavrov
Spinal cord injury (SCI) is a complex and devastating condition characterized by disruption of descending, ascending, and intrinsic spinal circuitry resulting in chronic neurologic deficits. In addition to limb and trunk sensorimotor deficits, SCI can impair autonomic neurocircuitry such as the motor networks that support respiration and cough. High cervical SCI can cause complete respiratory paralysis, and even lower cervical or thoracic lesions commonly result in partial respiratory impairment. Although electrophrenic respiration can restore ventilator-independent breathing in select candidates, only a small subset of affected individuals can benefit from this technology at this moment...
August 3, 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28777065/possible-role-of-antioxidative-capacity-of-epigallocatechin-3-gallate-treatment-in-morphological-and-neurobehavioral-recovery-after-sciatic-nerve-crush-injury
#12
Waleed M Renno, Ludmil Benov, Khalid M Khan
OBJECTIVE This study examined the capacity of the major polyphenolic green tea extract (-)-epigallocatechin-3-gallate (EGCG) to suppress oxidative stress and stimulate the recovery and prompt the regeneration of sciatic nerve after crush injury. METHODS Adult male Wistar rats were randomly assigned to one of 4 groups: 1) Naïve, 2) Sham (sham injury, surgical control group), 3) Crush (sciatic nerve crush injury treated with saline), and 4) Crush+EGCG (sciatic nerve crush injury treated with intraperitoneally administered EGCG, 50 mg/kg)...
August 4, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28776505/effects-of-cathodal-trans-spinal-direct-current-stimulation-on-lower-urinary-tract-function-in-normal-and-spinal-cord-injury-mice-with-overactive-bladder
#13
Zaghloul Ahmed
OBJECTIVE: Lower urinary tract (LUT) dysfunction is a monumental problem affecting quality of life following neurotrauma, such as spinal cord injury (SCI). Proper function of the bladder and its associated structures depends on coordinated activity of the neuronal circuitry in the spinal cord and brain. Disconnection between the spinal and brain centers controlling the LUT causes fundamental changes in the mechanisms involved in the micturition and storage reflexes. We investigated the effects of cathodal trans-spinal direct current stimulation (c-tsDCS) of the lumbosacral spine on bladder and external urinary sphincter (EUS) functions...
August 4, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28776122/mechanisms-involved-in-the-remyelinating-effect-of-sildenafil
#14
Daniela Díaz-Lucena, María Gutierrez-Mecinas, Beatriz Moreno, José Lupicinio Martínez-Sánchez, Paula Pifarré, Agustina García
Remyelination occurs in demyelinated lesions in multiple sclerosis (MS) and pharmacological treatments that enhance this process will critically impact the long term functional outcome in the disease. Sildenafil, a cyclic GMP (cGMP)-specific phosphodiesterase 5 inhibitor (PDE5-I), is an oral vasodilator drug extensively used in humans for treatment of erectile dysfunction and pulmonary arterial hypertension. PDE5 is expressed in central nervous system (CNS) neuronal and glial populations and in endothelial cells and numerous studies in rodent models of neurological disease have evidenced the neuroprotective potential of PDE5-Is...
August 3, 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/28775367/abdominal-functional-electrical-stimulation-to-improve-respiratory-function-after-spinal-cord-injury-a-systematic-review-and-meta-analysis
#15
E J McCaughey, R J Borotkanics, H Gollee, R J Folz, A J McLachlan
This corrects the article DOI: 10.1038/sc.2016.31.
August 2017: Spinal Cord
https://www.readbyqxmd.com/read/28774283/effectiveness-of-spinal-cord-stimulation-for-painful-camptocormia-with-pisa-syndrome-in-parkinson-s-disease-a-case-report
#16
Hisanao Akiyama, Saki Nukui, Masashi Akamatu, Yasuhiro Hasegawa, Osamu Nishikido, Soichiro Inoue
BACKGROUND: Spinal cord stimulation (SCS) has recently been reported to be effective for truncal postural abnormalities such as camptocormia and Pisa syndrome in Parkinson's disease. In this case report, we describe a case of a woman with Parkinson's disease in whom SCS was effective for painful camptocormia with Pisa syndrome. CASE PRESENTATION: A 65-year-old woman was admitted to our hospital because of painful camptocormia. She had noticed resting tremor in the left upper limb and aprosody at 48 years of age...
August 3, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28772216/minocycline-attenuates-the-development-of-diabetic-neuropathy-by-inhibiting-spinal-cord-notch-signaling-in-rat
#17
Cheng Yang, Jie Gao, Banglin Wu, Nuo Yan, Hui Li, Yiqing Ren, Yufei Kan, Jiamin Liang, Yang Jiao, Yonghao Yu
We studied the effects of minocycline (an inhibitor of microglial activation) on the expression and activity of Notch-1 receptor, and explored the therapeutic efficacy of minocycline combined with Notch inhibitor DAPT in the treatment of diabetic neuropathic pain (DNP). Diabetic rat model was established by intraperitoneal injection (ip) of Streptozotocin (STZ). Expression and activity of Notch-1 and expression of macrophage/microglia marker Iba-1 were detected by WB. Diabetes induction significantly attenuated sciatic nerve conduction velocity, and dramatically augmented the expression and the activity of Notch-1 in the lumbar enlargement of the spinal cord...
July 31, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28767512/dissecting-the-role-of-the-crmp2-neurofibromin-complex-on-pain-behaviors
#18
Aubin Moutal, Yue Wang, Xiaofang Yang, Yingshi Ji, Shizhen Luo, Angie Dorame, Shreya S Bellampalli, Lindsey A Chew, Song Cai, Erik T Dustrude, James E Keener, Michael T Marty, Todd W Vanderah, Rajesh Khanna
Neurofibromatosis type 1 (NF1), a genetic disorder linked to inactivating mutations or homozygous deletion of the Nf1 gene, is characterized by tumorigenesis, cognitive dysfunction, seizures, migraine, and pain. Omic studies on human NF1 tissues identified an increase in expression of collapsin response mediator protein 2 (CRMP2), a cytosolic protein reported to regulate the trafficking and activity of presynaptic N-type voltage-gated calcium (Cav2.2) channels. Since neurofibromin, the protein product of the Nf1 gene, binds to and inhibits CRMP2, the neurofibromin-CRMP2 signaling cascade will likely affect Ca2+ channel activity and regulate nociceptive neurotransmission and in vivo responses to noxious stimulation...
July 31, 2017: Pain
https://www.readbyqxmd.com/read/28762503/mechanomyography-based-wearable-monitor-of-quasi-isometric-muscle-fatigue-for-motor-neural-prostheses
#19
Eddy Krueger, Lana Popović-Maneski, Percy Nohama
A motor neural prosthesis based on surface functional electrical stimulation (sFES) can restore functional movement (e.g., standing, walking) in patients with a spinal cord injury (SCI). sFES generates muscle contractions in antigravity muscles and allows balance-assisted standing. This induced standing has several benefits, such as improved cardiovascular function, decreased incidence of urinary infections, reduced joint contractures, and muscle atrophy. The duration of sFES assisted standing is limited due to the quick onset of muscle fatigue...
August 1, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28762191/inhibition-of-autophagy-is-involved-in-the-protective-effects-of-ginsenoside-rb1-on-spinal-cord-injury
#20
Peng Wang, Chaowei Lin, Shiyang Wu, Kelun Huang, Yu Wang, Xiaomei Bao, Fan Zhang, Zhihui Huang, Honglin Teng
Spinal cord injury (SCI) is a devastating neurological disorder. Autophagy is induced and plays a crucial role in SCI. Ginsenoside Rb1 (Rb1), one of the major active components extracted from Panax Ginseng CA Meyer, has exhibited neuroprotective effects in various neurodegenerative diseases. However, it remains unknown whether autophagy is involved in the neuroprotection of Rb1 on SCI. In this study, we examined the regulation of autophagy following Rb1 treatment and its involvement in the Rb1-induced neuroprotection in SCI and in vitro injury model...
July 31, 2017: Cellular and Molecular Neurobiology
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