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electrical neuromodulation

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https://www.readbyqxmd.com/read/30506960/effects-of-tonic-spinal-cord-stimulation-on-sensory-perception-in-chronic-pain-patients-a-systematic-review
#1
REVIEW
Martine Bordeleau, Sylvine Carrondo Cottin, Kaare Meier, Michel Prud'Homme
OBJECTIVES: Even if spinal cord stimulation (SCS) is widely used and effective in treating intractable chronic neuropathic pain conditions, little is known about its possible impacts on sensory perception. Quantitative sensory testing (QST) is a useful tool to assess this issue. The aim of this study was to review the impact of tonic SCS on somatosensory perception quantified by QST in chronic pain patients. MATERIALS AND METHODS: Relevant articles and abstracts were searched in all languages from CINAHL, Cochrane, Embase, MEDLINE, and Web of Knowledge data bases...
December 2, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/30506881/intrapallidal-injection-of-botulinum-toxin-a-recovers-gait-deficits-in-a-parkinsonian-rodent-model
#2
Adrianna R Tsang, Nagalingam Rajakumar, Mandar S Jog
AIM: Modulation of electrical activity in the subthalamic nucleus has been therapeutically effective in Parkinson's disease. Pharmacological manipulation of glutamate release from subthalamic neurons could also favourably alter basal ganglia activity to improve motor symptoms. The present study investigates the efficacy of selective suppression of hyperactive glutamatergic input from the subthalamic nucleus to the globus pallidus internal segment by botulinum toxin A (BoNT-A) in a parkinsonian model...
December 3, 2018: Acta Physiologica
https://www.readbyqxmd.com/read/30506765/effect-of-early-sacral-neuromodulation-on-bladder-function-in-a-rat-model-of-incomplete-spinal-cord-injury-due-to-focal-contusion
#3
Young Ju Lee, Cheol Yong Yoon, Min Seung Lee, Byung Do Song, Sang Wook Lee, Seong Jin Jeong
OBJECTIVES: Incomplete spinal cord injury (SCI) accounts for two-thirds of all SCIs in clinical practice. Preclinical research on the effect of sacral neuromodulation (SNM) on bladder function, however, has been focused only on animal models of complete SCI. We aimed to evaluate the effect of early SNM on bladder responses in a rat model of incomplete SCI. MATERIALS AND METHODS: Altogether, 21 female Sprague-Dawley rats were equally assigned to control (CTR), SCI + sham stimulation (SHAM), and SCI + SNM (SNM) groups...
December 2, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/30503202/anthelmintic-drug-actions-in-resistant-and-susceptible-c-elegans-revealed-by-electrophysiological-recordings-in-a-multichannel-microfluidic-device
#4
Janis C Weeks, Kristin J Robinson, Shawn R Lockery, William M Roberts
Many anthelmintic drugs used to treat parasitic nematode infections target proteins that regulate electrical activity of neurons and muscles: ion channels (ICs) and neurotransmitter receptors (NTRs). Perturbation of IC/NTR function disrupts worm behavior and can lead to paralysis, starvation, immune attack and expulsion. Limitations of current anthelmintics include a limited spectrum of activity across species and the threat of drug resistance, highlighting the need for new drugs for human and veterinary medicine...
October 30, 2018: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/30482690/a-self-regulating-gap-junction-network-of-amacrine-cells-controls-nitric-oxide-release-in-the-retina
#5
Jason Jacoby, Amurta Nath, Zachary F Jessen, Gregory W Schwartz
Neuromodulators regulate circuits throughout the nervous system, and revealing the cell types and stimulus conditions controlling their release is vital to understanding their function. The effects of the neuromodulator nitric oxide (NO) have been studied in many circuits, including in the vertebrate retina, where it regulates synaptic release, gap junction coupling, and blood vessel dilation, but little is known about the cells that release NO. We show that a single type of amacrine cell (AC) controls NO release in the inner retina, and we report its light responses, electrical properties, and calcium dynamics...
October 22, 2018: Neuron
https://www.readbyqxmd.com/read/30466677/helping-patients-with-gastroparesis
#6
REVIEW
Frances U Onyimba, John O Clarke
Gastroparesis is an increasing concern and options remain limited. Diagnosis hinges on recognition of delayed gastric emptying in the absence of mechanical obstruction. Nontransit studies evaluating gastric motility serve a complementary role and may help guide therapy. Treatment consists of a combination of lifestyle and dietary medication, medications (antiemetics, prokinetics, neuromodulators, and accommodation-enhancers), alternative and complementary therapy, endoscopic therapy (pyloric-directed therapy, temporary stimulation, jejunostomy, or venting gastrostomy) and surgical therapy (pyloroplasty, gastric electrical stimulation, gastrectomy)...
January 2019: Medical Clinics of North America
https://www.readbyqxmd.com/read/30451336/electrical-stimulation-and-recovery-of-gastrointestinal-function-following-surgery-a-systematic-review
#7
REVIEW
James A Penfold, Cameron I Wells, Peng Du, Ian P Bissett, Gregory O'Grady
OBJECTIVES: Postoperative ileus occurs in approximately 5-15% of patients following major abdominal surgery, and poses a substantial clinical and economic burden. Electrical stimulation has been proposed as a means to aid postoperative gastrointestinal (GI) recovery, but no methods have entered routine clinical practice. A systematic review was undertaken to assess electrical stimulation techniques and to evaluate their clinical efficacy in order to identify promising areas for future research...
November 19, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/30450622/neuromodulation-dependent-effect-of-gated-high-frequency-lfms-like-electric-field-stimulation-in-mouse-cortical-slices
#8
Ehsan Negahbani, Stephen L Schmidt, Nadia Mishal, Flavio Fröhlich
Low-field magnetic stimulation (LFMS) is a gated high-frequency noninvasive brain stimulation method (500 Hz gated at 2 Hz) with a proposed antidepressant effect. However, it has remained unknown how such stimulation paradigms modulate neuronal network activity and how the induced changes depend on network state. Here we examined the immediate and outlasting effects of the gated high-frequency electric field associated with LFMS on the cortical activity as a function of neuromodulatory tone that defines network state...
November 19, 2018: European Journal of Neuroscience
https://www.readbyqxmd.com/read/30441579/a-wireless-platform-to-support-pre-clinical-trial-of-neural-implant-for-spinal-cord-injury
#9
Jonathan Massachi, Yi-Kai Lo, Po-Min Wang, Wentai Liu
The efficacy of many clinical applications of electrical stimulation is currently gauged only by patients' verbal feedback or through the use of an independent system, limiting physicians' ability to provide quality treatment. By integrating neural response recording into the system, though, more accurate measures of treatment effectiveness are possible. This paper presents a platform which enables wireless control of an implantable bioelectronic device which integrates functional electrical stimulation and simultaneous recording of neural activity for a wide range of potential applications including motor function prostheses for spinal cord injury, retinal prostheses, and treatments for various other conditions...
July 2018: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/30441412/characterizing-cortical-responses-evoked-by-electrical-stimulation-of-the-mouse-infraorbital-nerve
#10
Aaron J Suminski, Jared P Ness, Weifeng Zeng, Joseph Novello, Sarah K Brodnick, Jane Pisaniello, Aaron M Dingle, Samuel O Poore, Wendell B Lake, Justin C Williams
In recent years, the trigeminal nerve (CN V) has become a popular target for neuromodulation therapies to treat of a variety of diseases due to its access to neuromodulatory centers. Despite promising preclinical and clinical data, the mechanism of action of trigeminal nerve stimulation (TNS) remains in question. In this work, we describe the development and evaluation of a neural interface targeting the mouse trigeminal nerve with the goal of enabling future mechanistic research on TNS. We performed experiments designed to evaluate the ability of a peripheral nerve interface (i...
July 2018: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/30441048/stimulation-effect-of-inter-subject-variability-in-tdcs-multi-scale-modeling-study
#11
Cheolki Im, Hyeon Seo, Sung Chan Jun
Transcranial direct current stimulation (tDCS) is an emerging non-invasive neuromodulation method that is convenient and popular in clinical use. However, there is a practical issue in applying tDCS; it is difficult to optimize the montage for each individual because of inherent inter-subject variability. Thus, the stimulation effect of such individual anatomical head variation has been investigated using anatomically realistic models. In this work, we developed a multi-scale computational model, which combined head models based on magnetic resonance imaging (MRI) and multi-compartmental neuronal models of pyramidal neurons (PNs), to investigate both the macroscopic and microscopic effects oftDCS...
July 2018: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/30419304/neurostimulation-in-dry-eye-disease-past-present-and-future
#12
REVIEW
Gabriela Dieckmann, Felipe Fregni, Pedram Hamrah
Neuromodulation is a novel approach that utilizes electrical signals, pharmaceutical agents, or other forms of energy to modulate abnormal neural function through neurostimulation. Neurostimulation is a novel technique that uses electrical currents to stimulate the nervous system. During the recent few decades, neuromodulation has gained significant attention, in particular for the treatment of chronic neurological diseases, due to its success in treating patients unresponsive to conventional pharmacological therapies...
November 9, 2018: Ocular Surface
https://www.readbyqxmd.com/read/30415633/coupled-oscillators-model-of-hyperexcitable-neuroglial-networks
#13
Firas H Farah, Vasily Grigorovsky, Berj L Bardakjian
Glial populations within neuronal networks of the brain have recently gained much interest in the context of hyperexcitability and epilepsy. In this paper, we present an oscillator-based neuroglial model capable of generating Spontaneous Electrical Discharges (SEDs) in hyperexcitable conditions. The network is composed of 16 coupled Cognitive Rhythm Generators (CRGs), which are oscillator-based mathematical constructs previously described by our research team. CRGs are well-suited for modeling assemblies of excitable cells, and in this network, each represents one of the following populations: excitatory pyramidal cells, inhibitory interneurons, astrocytes, and microglia...
September 16, 2018: International Journal of Neural Systems
https://www.readbyqxmd.com/read/30408596/volitional-limbic-neuromodulation-has-a-multifaceted-clinical-benefit-in-fibromyalgia-patients
#14
Noam Goldway, Jacob Ablin, Omer Lubin, Yoav Zamir, Jackob Nimrod Keynan, Ayelet Or-Borichev, Marc Cavazza, Fred Charles, Nathan Intrator, Silviu Brill, Eti Ben-Simon, Haggai Sharon, Talma Hendler
Volitional neural modulation using neurofeedback has been indicated as a potential treatment for chronic conditions that involve peripheral and central neural dysregulation. Here we utilized neurofeedback in patients suffering from Fibromyalgia - a chronic pain syndrome that involves sleep disturbance and emotion dysregulation. These ancillary symptoms, which have an amplification effect on pain, are known to be mediated by heightened limbic activity. In order to reliably probe limbic activity in a scalable manner fit for EEG-neurofeedback training, we utilized an Electrical Finger Print (EFP) model of amygdala-BOLD signal (termed Amyg-EFP), that has been successfully validated in our lab in the context of volitional neuromodulation...
November 5, 2018: NeuroImage
https://www.readbyqxmd.com/read/30408227/brain-state-dependent-stimulation-boosts-functional-recovery-following-stroke
#15
Natalie Mrachacz-Kersting, Andrew J T Stevenson, Helle R M Jørgensen, Kåre Eg Severinsen, Susan Aliakbaryhosseinabadi, Ning Jiang, Dario Farina
OBJECTIVE: Adjuvant protocols devised to enhance motor recovery in subacute stroke patients have failed to show benefits with respect to classic therapeutic interventions. Here we evaluate the efficacy of a novel brain-state dependent intervention based on known mechanisms of memory and learning, that is integrated as part of the weekly rehabilitation program in subacute stroke patients. METHODS: Twenty-four hospitalized subacute stroke patients were randomly assigned to two intervention groups; 1...
November 8, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/30407660/management-of-neurogenic-bladder-in-patients-with-parkinson-s-disease-a-systematic-review
#16
REVIEW
Sakineh Hajebrahimi, Christopher R Chapple, Fariba Pashazadeh, Hanieh Salehi-Pourmehr
AIMS: To assess the different treatment methods in management of neurogenic bladder (NGB) in patients with Parkinson's disease (PD). METHODS: A systematic search was performed in Cochrane library, EMBASE, Proquest, Clinicaltrial.gov, WHO, Google Scholar, MEDLINE via PubMed, Ovid, ongoing trials registers, and conference proceedings in November 11, 2017. All randomized controlled trials (RCTs) or quasi-RCTs comparing any treatment method for management of NGB in patients with PD were included...
November 8, 2018: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/30397007/comparison-of-efficacy-and-safety-between-electroacupuncture-at-four-sacral-points-and-conventional-electroacupuncture-for-the-treatment-of-urinary-incontinence-after-stroke-study-protocol-for-a-randomised-controlled-trial
#17
Shan Chen, Siyou Wang, Lihua Xuan, Hanti Lu, Zhikai Hu, Chao Zhang, Huifang Zhang
INTRODUCTION: Electroacupuncture at 'four sacral points', also known as electrical pudendal nerve stimulation therapy, combines the advantages of pudendal nerve neuromodulation and the technique of deep insertion of long acupuncture needles. It has been used to treat stress urinary incontinence, female urgency-frequency syndrome, idiopathic urgency urinary incontinence and neurological bladders in previous studies. Here, we describe the protocol for a randomised controlled trial for evaluation of the efficacy and safety of electroacupuncture at 'four sacral points' for the management of urinary incontinence after stroke...
November 5, 2018: BMJ Open
https://www.readbyqxmd.com/read/30389075/transcranial-magnetic-stimulation-in-conditions-other-than-major-depressive-disorder
#18
REVIEW
Jonathan Essary Becker, Elizabeth K B Shultz, Christopher Todd Maley
Transcranial magnetic stimulation (TMS) is a treatment approved by the Food and Drug Administration for major depressive disorder (MDD). TMS is a neuromodulation technique that works by creating a focal magnetic field that induces a small electric current. Compared with other neuromodulation techniques, TMS is a noninvasive treatment modality that is generally well-tolerated. Because of the success of TMS in treating depression, there has been interest in applications for other neuropsychiatric diseases. The purpose of this article was to review potential uses for TMS for children and adolescents in conditions other than MDD...
January 2019: Child and Adolescent Psychiatric Clinics of North America
https://www.readbyqxmd.com/read/30375485/neuromodulation-treats-chikungunya-arthralgia-a-randomized-controlled-trial
#19
Edson Silva-Filho, Alexandre H Okano, Edgard Morya, Jessica Albuquerque, Enio Cacho, Gozde Unal, Marom Bikson, Rodrigo Pegado
The Chikungunya (CHIK) virus is epidemic in Brazil, with 170,000 cases in the first half of 2016. More than 60% of patients present relapsing and remitting chronic arthralgia with debilitating pain lasting years. There are no specific therapeutic agents to treat and rehabilitee infected persons with CHIK. Persistent pain can lead to incapacitation, requiring long-term pharmacological treatment. Advances in non-pharmacological treatments are necessary to promote pain relief without side effects and to restore functionality...
October 30, 2018: Scientific Reports
https://www.readbyqxmd.com/read/30362876/self-assisted-standing-enabled-by-non-invasive-spinal-stimulation-after-spinal-cord-injury
#20
Dimitry Sayenko, Mrinal Rath, Adam R Ferguson, Joel Burdick, Leif Havton, Victor Reggie Edgerton, Yury Gerasimenko
Neuromodulation of spinal networks can improve motor control after spinal cord injury (SCI). The objectives of this study were to (1) determine whether individuals with chronic paralysis can stand with the aid of non-invasive electrical spinal stimulation with their knees and hips extended without trainer assistance, and (2) investigate whether postural control can be further improved following repeated sessions of stand training. Using a double-blind, balanced, within-subject cross-over, and "sham"-controlled study design, 15 individuals with SCI of various severity received transcutaneous electrical spinal stimulation to regain self-assisted standing...
October 26, 2018: Journal of Neurotrauma
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