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Neuromuscular control

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https://www.readbyqxmd.com/read/28928706/early-stroke-rehabilitation-of-the-upper-limb-assisted-with-an-electromyography-driven-neuromuscular-electrical-stimulation-robotic-arm
#1
Qiuyang Qian, Xiaoling Hu, Qian Lai, Stephanie C Ng, Yongping Zheng, Waisang Poon
BACKGROUND: Effective poststroke motor rehabilitation depends on repeated limb practice with voluntary efforts. An electromyography (EMG)-driven neuromuscular electrical stimulation (NMES)-robot arm was designed for the multi-joint physical training on the elbow, the wrist, and the fingers. OBJECTIVES: To investigate the training effects of the device-assisted approach on subacute stroke patients and to compare the effects with those achieved by the traditional physical treatments...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28920046/the-effect-of-intraoperative-alkali-treatment-on-recovery-from-atracurium-induced-neuromuscular-blockade-in-renal-transplantation-a-randomized-trial
#2
Navid Noraee, Mohammad Fathi, Majid Golestani Eraghi, Ali Dabbagh, Nilofar Massoudi
BACKGROUND: Intraoperative care and anesthesia method in patients undergoing allograft renal transplantation surgery are very necessary. Acid-base imbalance can alter neuromuscular blockade and recovery time. OBJECTIVES: The aim of the present study was to investigate the effect of acid-base balance on atracurium blockade in renal transplantation. METHODS: In this randomized-controlled trial, 31 end-stage renal disease (ESRD) patients undergoing renal transplantation were randomly assigned into two equal groups...
February 2017: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/28914722/factors-associated-with-pediatric-ventilator-associated-conditions-in-six-u-s-hospitals-a-nested-case-control-study
#3
Noelle M Cocoros, Gregory Priebe, James E Gray, Philip Toltzis, Gitte Y Larsen, Latania K Logan, Susan Coffin, Julia S Sammons, Kathleen Deakins, Kelly Horan, Matthew Lakoma, Jessica Young, Michael Burton, Michael Klompas, Grace M Lee
OBJECTIVES: A newly proposed surveillance definition for ventilator-associated conditions among neonatal and pediatric patients has been associated with increased morbidity and mortality among ventilated patients in cardiac ICU, neonatal ICU, and PICU. This study aimed to identify potential risk factors associated with pediatric ventilator-associated conditions. DESIGN: Retrospective cohort. SETTING: Six U.S. hospitals PATIENTS:: Children less than or equal to 18 years old ventilated for greater than or equal to 1 day...
September 13, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28913862/the-effect-of-neuromuscular-blockade-on-the-efficiency-of-facemask-ventilation-in-patients-difficult-to-facemask-ventilate-a-prospective-trial
#4
S Soltész, P Alm, A Mathes, M Hellmich, J Hinkelbein
Facemask ventilation of the lungs can be an important rescue intervention in a 'cannot intubate' scenario. We assessed the effect of neuromuscular blockade on expiratory tidal volumes in patients with expected difficulty in mask ventilation. The lungs of patients with at least three predictors of difficulty in mask ventilation were ventilated using a facemask held with two hands, with mechanical ventilation set in a pressure-controlled mode. Tidal volumes were recorded before and after the establishment of complete neuromuscular block...
September 14, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28913369/changes-in-the-width-of-the-tibiofibular-syndesmosis-related-to-lower-extremity-joint-dynamics-and-neuromuscular-coordination-on-drop-landing-during-the-menstrual-cycle
#5
Michie Okazaki, Masaaki Kaneko, Yukisato Ishida, Norio Murase, Toshihito Katsumura
BACKGROUND: Many injuries of the lower extremities, especially the knee and ankle, occur during sports activity, and the incidence rate is higher in women than in men. HYPOTHESIS: The hypothesis was that phases of the menstrual cycle affect the width of the tibiofibular syndesmosis during drop landing in healthy young women and that such changes at the tibiofibular joint also affect the dynamics and neuromuscular coordination of the lower extremities. STUDY DESIGN: Descriptive laboratory study...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28912634/posterior-hip-instability-relocation-testing-a-resident-s-case-report
#6
Rich Maas, Scott Wallentine, Dale Gerke, Sam Crager, Jessica Stewart
BACKGROUND: Micro-instability (non-radiographic clinical instability) continues to gain recognition as a problem at the hip. Although most research has been directed to anterior hip instability, posterior hip instability (PHI) has also garnered attention. PHI is under recognized, difficult to identify, and confused with other hip pathologies such as a simple sprain or strain. A novel clinical test is introduced that may have helped identify PHI in this patient. Additionally, a conservative rehabilitation approach emphasizing stabilization exercises is described...
September 2017: Journal of Manual & Manipulative Therapy
https://www.readbyqxmd.com/read/28911287/effect-of-sugammadex-versus-neostigmine-atropine-combination-on-postoperative-cognitive-dysfunction-after-elective-surgery
#7
C Batistaki, M Riga, F Zafeiropoulou, G Lyrakos, G Kostopanagiotou, P Matsota
This study aimed to assess the effects of sugammadex and neostigmine/atropine on postoperative cognitive dysfunction (POCD) in adult patients after elective surgery. A randomised, double-blind controlled trial was carried out on 160 American Society of Anesthesiologists physical status I to III patients who were >40 years. The Mini-Mental State Evaluation, clock-drawing test and the Isaacs Set test were used to assess cognitive function at three timepoints: 1) preoperatively, 2) one hour postoperatively, and 3) at discharge...
September 2017: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/28903493/editor-s-highlight-formulation-and-toxicology-evaluation-of-the-intrathecal-ayx1-dna-decoy-in-sprague-dawley-rats
#8
Julien Mamet, David C Yeomans, Tony L Yaksh, Donald C Manning, Scott Harris
The longevity of pain after surgery is debilitating and limits the recovery of patients. AYX1 is a double-stranded, unprotected, 23 base-pair oligonucleotide designed to reduce acute post-surgical pain and prevent its chronification with a single intrathecal perioperative dose. AYX1 mimics the DNA sequence normally bound by EGR1 on chromosomes, a transcription factor transiently induced in the dorsal root ganglia-spinal cord network following a noxious input. AYX1 binds to EGR1 and prevents it from launching waves of gene regulation that are necessary to maintain pain over time...
September 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28903474/nitric-oxide-heat-shock-protein-axis-in-menopausal-hot-flushes-neglected-metabolic-issues-of-chronic-inflammatory-diseases-associated-with-deranged-heat-shock-response
#9
Antônio Azambuja Miragem, Paulo Ivo Homem de Bittencourt
BACKGROUND: Although some unequivocal underlying mechanisms of menopausal hot flushes have been demonstrated in animal models, the paucity of similar approaches in humans impedes further mechanistic outcomes. Human studies might show some as yet unexpected physiological mechanisms of metabolic adaptation that permeate the phase of decreased oestrogen levels in both symptomatic and asymptomatic women. This is particularly relevant because both the severity and time span of hot flushes are associated with increased risk of chronic inflammatory disease...
September 1, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28902108/effects-of-two-different-self-adapted-occlusal-splints-on-electromyographic-and-force-parameters-during-elbow-flexors-isometric-contraction
#10
Eloisa Limonta, Chiara Arienti, Susanna Rampichini, Massimo Venturelli, Emiliano Cè, Arsenio Veicsteinas, Fabio Esposito
The study was aimed at determining the acute effects of two types of occlusal splints on maximum isometric strength and fatigue of the elbow flexors muscles. The hypothesis was that splint-induced masticatory muscle repositioning might improve primary muscles recruitment by stretching masticatory muscles especially with the thicker splint.On nine physically active volunteers with no temporo-mandibular joint and masticatory muscles disorders, we assessed maximum voluntary contraction (MVC) of the elbow flexors with diurnal (OSD, 1-mm thick) and sport (OSSP, 3-mm thick) splints, and without splint (control, Ctrl)...
September 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28895049/mutation-in-gne-downregulates-peroxiredoxin-iv-altering-er-redox-homeostasis
#11
Pratibha Chanana, Gayatri Padhy, Kalpana Bhargava, Ranjana Arya
GNE myopathy is a rare neuromuscular genetic disorder characterized by early adult onset and muscle weakness due to mutation in sialic acid biosynthetic enzyme, UDP-N-acetylglucosamine 2-epimerase/N-acetylmannosamine kinase (GNE). More than 180 different GNE mutations are known all over the world with unclear pathomechanism. Although hyposialylation of glycoproteins is speculated to be the major cause, but cellular mechanism leading to loss of muscle mass has not yet been deciphered. Besides sialic acid biosynthesis, GNE affects other cellular functions such as cell adhesion and apoptosis...
September 11, 2017: Neuromolecular Medicine
https://www.readbyqxmd.com/read/28893921/randomized-controlled-trial-of-the-effect-of-dietary-potassium-restriction-on-nerve-function-in-ckd
#12
Ria Arnold, Timothy J Pianta, Bruce A Pussell, Adrienne Kirby, Kate O'Brien, Karen Sullivan, Margaret Holyday, Christine Cormack, Matthew C Kiernan, Arun V Krishnan
BACKGROUND AND OBJECTIVES: Neuromuscular complications are almost universal in CKD by the time that a patient commences dialysis. Recent studies have indicated that chronic hyperkalemia may contribute to the development of neuropathy in CKD. This study was undertaken to determine whether dietary restriction of potassium intake may be a neuroprotective factor in CKD. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: A 24-month prospective, single-blind, randomized, controlled trial was undertaken in 47 consecutively recruited patients with stages 3 and 4 CKD...
September 11, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28892511/the-equilibrium-between-antagonistic-signaling-pathways-determines-the-number-of-synapses-in-drosophila
#13
Sheila Jordán-Álvarez, Elena Santana, Sergio Casas-Tintó, Ángel Acebes, Alberto Ferrús
The number of synapses is a major determinant of behavior and many neural diseases exhibit deviations in that number. However, how signaling pathways control this number is still poorly understood. Using the Drosophila larval neuromuscular junction, we show here a PI3K-dependent pathway for synaptogenesis which is functionally connected with other previously known elements including the Wit receptor, its ligand Gbb, and the MAPkinases cascade. Based on epistasis assays, we determined the functional hierarchy within the pathway...
2017: PloS One
https://www.readbyqxmd.com/read/28890682/impaired-mitophagy-plays-a-role-in-denervation-of-neuromuscular-junctions-in-als-mice
#14
Robert S Rogers, Sudheer Tungtur, Tomohiro Tanaka, Lisa L Nadeau, Yomna Badawi, Hua Wang, Hong-Min Ni, Wen-Xing Ding, Hiroshi Nishimune
Motor neurons in amyotrophic lateral sclerosis (ALS) patients and animal models show degeneration from the nerve terminal, known as dying-back neuropathy. To investigate the mechanism underlying this neuropathy, we analyzed the neuromuscular junctions (NMJs) and motor neuron cell bodies in SOD1(G93A) mice using electron microscopy. NMJs of SOD1(G93A) mice exhibited significantly higher numbers of autophagosomes and degenerated mitochondria compared to wild-type controls. Mitophagosomes were identified in the NMJ presynaptic terminals of wild-type mice and SOD1(G93A) mice...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28886823/update-on-anterior-cruciate-ligament-rupture-and-care-in-the-female-athlete
#15
REVIEW
Jeremy M Burnham, Vonda Wright
As female athlete sports participation has continued to increase, the rate of anterior cruciate ligament (ACL) rupture in female athletes has also increased. Individualized, patient-specific treatment is crucial to achieving optimal outcomes; ACL reconstruction must accurately restore native ACL anatomy and address any concomitant injury to secondary stabilizers. Rehabilitation programs should target hip, core, and trunk neuromuscular control; allow adequate time for graft ligamentization; and address the psychosocial needs of the athlete...
October 2017: Clinics in Sports Medicine
https://www.readbyqxmd.com/read/28885698/autoimmune-antibodies-to-collagen-xiii-in-myasthenia-gravis-patients
#16
Hongmin Tu, Ritva Pirskanen-Matell, Anne Heikkinen, Tuomo Oikarainen, Juha Risteli, Taina Pihlajaniemi
INTRODUCTION: Myasthenia Gravis (MG) is a neuromuscular junction (NMJ) disorder caused by autoantibodies against NMJ proteins. Collagen XIII is a muscle-derived transmembrane protein required for NMJ maturation. The objective of this study is to explore existence of autoantibodies to collagen XIII in MG patients. METHODS: Seventy MG patient sera and 61 human healthy controls were screened for collagen XIII autoantibodies by enzyme-linked immunosorbent assay (ELISA)...
September 8, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28885365/therapeutic-efficacy-of-neuromuscular-electrical-stimulation-and-electromyographic-biofeedback-on-alzheimer-s-disease-patients-with-dysphagia
#17
Yi Tang, Xiang Lin, Xiao-Juan Lin, Wei Zheng, Zhi-Kai Zheng, Zhao-Min Lin, Jian-Hao Chen
To study the therapeutic effect of neuromuscular electrical stimulation and electromyographic biofeedback (EMG-biofeedback) therapy in improving swallowing function of Alzheimer's disease patients with dysphagia.A series of 103 Alzheimer's disease patients with dysphagia were divided into 2 groups, among which the control group (n = 50) received swallowing function training and the treatment group (n = 53) received neuromuscular electrical stimulation plus EMG-biofeedback therapy. The mini-mental state scale score was performed in all patients along the treatment period...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28885083/risk-factors-for-progressive-neuromuscular-scoliosis-requiring-posterior-spinal-fusion-after-selective-dorsal-rhizotomy
#18
Vijay M Ravindra, Michael T Christensen, Kaine Onwuzulike, John T Smith, Kyle Halvorson, Douglas L Brockmeyer, Marion L Walker, Robert J Bollo
OBJECTIVE Selective dorsal rhizotomy (SDR) via limited laminectomy is an effective treatment of lower-extremity spasticity in the pediatric population. Children with spasticity are also at risk for neuromuscular scoliosis; however, specific risk factors for progressive spinal deformity requiring posterior spinal fusion (PSF) after SDR are unknown. The authors' goal was to identify potential risk factors. METHODS The authors performed a retrospective cohort study of patients who underwent SDR via limited laminectomy between 2003 and 2014 and who had at least 1 year of follow-up...
September 8, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28884620/nusinersen-for-the-treatment-of-spinal-muscular-atrophy
#19
Claudia A Chiriboga
Spinal muscular atrophy (SMA) is an autosomal recessive degenerative neuromuscular disorder characterized by loss of spinal motor neurons leading to muscle weakness. This review article focuses on a novel antisense oligonucleotide treatment, first ever approved for SMA (nusinersen, Spinraza(TM)) and describes the exciting journey from early ASO clinical trials to regulatory approval of the first ever known effective treatment for SMA. Areas covered: This article reviews the results of the published open label nusinersen studies in infants and children, and briefly covers the preliminary findings of the recently completed but as yet unpublished nusinersen-sham controlled trials, as well as the presymptomatic nusinersen trial known as Nurture...
September 8, 2017: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/28882990/extended-synaptotagmin-localizes-to-presynaptic-er-and-promotes-neurotransmission-and-synaptic-growth-in-drosophila
#20
Koto Kikuma, Xiling Li, Daniel Kim, David Sutter, Dion K Dickman
The endoplasmic reticulum (ER) is an extensive organelle in neurons with important roles at synapses including the regulation of cytosolic Ca(2+), neurotransmission, lipid metabolism, and membrane trafficking. Despite intriguing evidence for these crucial functions, how presynaptic ER influences synaptic physiology remains enigmatic. To gain insight into this question, we have generated and characterized mutations in the single Extended Synaptotagmin (Esyt) ortholog in Drosophila melanogaster Esyts are evolutionarily conserved ER proteins with Ca(2+)-sensing domains that have recently been shown to orchestrate membrane tethering and lipid exchange between the ER and plasma membrane...
September 7, 2017: Genetics
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