keyword
MENU ▼
Read by QxMD icon Read
search

Neuromuscular block

keyword
https://www.readbyqxmd.com/read/28440223/structural-insights-into-the-molecular-mechanisms-of-myasthenia-gravis-and-their-therapeutic-implications
#1
Kaori Noridomi, Go Watanabe, Melissa N Hansen, Gye Won Han, Lin Chen
The nicotinic acetylcholine receptor (nAChR) is a major target of autoantibodies in myasthenia gravis (MG), an autoimmune disease that causes neuromuscular transmission dysfunction. Despite decades of research, the molecular mechanisms underlying MG have not been fully elucidated. Here, we present the crystal structure of the nAChR α1 subunit bound by the Fab fragment of mAb35, a reference monoclonal antibody that causes experimental MG and competes with ~65% of antibodies from MG patients. Our structures reveal for the first time the detailed molecular interactions between MG antibodies and a core region on nAChR α1...
April 25, 2017: ELife
https://www.readbyqxmd.com/read/28437264/magnesium-sulphate-improves-pulmonary-function-after-video-assisted-thoracoscopic-surgery-a-randomised-double-blind-placebo-controlled-study
#2
Hye-Min Sohn, Sang-Hoon Jheon, Sunwoo Nam, Sang-Hwan Do
BACKGROUND: Reduced lung volumes are unavoidable after lung resection surgery. Magnesium sulphate (MgSO4) administration has been reported to reduce the requirement for neuromuscular blocking drugs and postoperative analgesics in surgical patients. OBJECTIVE: To investigate the effect of MgSO4 on pulmonary function after video-assisted thoracoscopic surgery (VATS). DESIGN: A randomised, double-blind, placebo-controlled trial. SETTING: A university tertiary care centre...
April 21, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28433839/the-diagnostic-accuracy-of-evoked-potential-monitoring-techniques-during-intracranial-aneurysm-surgery-for-predicting-postoperative-ischaemic-damage-a-systematic-review-and-meta-analysis
#3
REVIEW
Benjamin Thomas, Dongsheng Guo
OBJECTIVE: To investigate the diagnostic accuracy of various evoked potential monitoring techniques in predicting postoperative neurological deficit in intracranial aneurysm surgery. METHODS: A literature search of the MEDLINE, Embase and Cochrane databases was conducted for English language papers published between 31 March 1983 and 31 March 2016. Original studies that reported the use of evoked potential monitoring during intracranial aneurysm surgery in predicting postoperative neurological damage were selected, and their relevant reference lists were hand searched...
April 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28431431/an-ipsilateral-comparison-of-acceleromyography-and-electromyography-during-recovery-from-nondepolarizing-neuromuscular-block-under-general-anesthesia-in-humans-erratum
#4
(no author information available yet)
No abstract text is available yet for this article.
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28428630/hinge-deleted-igg4-blocker-therapy-for-acetylcholine-receptor-myasthenia-gravis-in-rhesus-monkeys
#5
Mario Losen, Aran F Labrijn, Vivianne H van Kranen-Mastenbroek, Maarten L Janmaat, Krista G Haanstra, Frank J Beurskens, Tom Vink, Margreet Jonker, Bert A 't Hart, Marina Mané-Damas, Peter C Molenaar, Pilar Martinez-Martinez, Eline van der Esch, Janine Schuurman, Marc H de Baets, Paul W H I Parren
Autoantibodies against ion channels are the cause of numerous neurologic autoimmune disorders. Frequently, such pathogenic autoantibodies have a restricted epitope-specificity. In such cases, competing antibody formats devoid of pathogenic effector functions (blocker antibodies) have the potential to treat disease by displacing autoantibodies from their target. Here, we have used a model of the neuromuscular autoimmune disease myasthenia gravis in rhesus monkeys (Macaca mulatta) to test the therapeutic potential of a new blocker antibody: MG was induced by passive transfer of pathogenic acetylcholine receptor-specific monoclonal antibody IgG1-637...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28401310/the-efficacy-of-periodised-resistance-training-on-neuromuscular-adaptation-in-older-adults
#6
Jenny A Conlon, Robert U Newton, James J Tufano, Luis E Peñailillo, Harry G Banyard, Amanda J Hopper, Ashley J Ridge, G Gregory Haff
PURPOSE: This study compared the effect of periodised versus non-periodised (NP) resistance training on neuromuscular adaptions in older adults. METHODS: Forty-one apparently healthy untrained older adults (female = 21, male = 20; 70.9 ± 5.1 years; 166.3 ± 8.2 cm; 72.9 ± 13.4 kg) were recruited and randomly stratified to an NP, block periodised (BP), or daily undulating periodised (DUP) training group. Outcome measures were assessed at baseline and following a 22-week resistance training intervention (3 day week(-1)), including: muscle cross-sectional area (CSA), vertical jump performance, isometric and isokinetic peak torque, isometric rate of force development (RFD), and muscle activation...
April 11, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28394450/effects-of-presynaptic-muscarinic-receptor-blockade-on-neuromuscular-transmission-as-assessed-by-the-train-of-four-and-the-tetanic-fade-response-to-rocuronium
#7
Yong Beom Kim, Sangseok Lee, Kyeong Cheon Lee, Ha Jung Kim, Young Jin Ro, Hong-Seuk Yang
This study investigated the effect of muscarinic M1 and M2 receptor antagonists on the rocuronium-induced train of four (TOF) fade and tetanic fade, respectively. Ex-vivo phrenic nerves/diaphragms were obtained from adult Sprague-Dawley rats and, stabilized in Krebs buffer, and the nerve-stimulated muscle TOF fade was observed at 20 s intervals. For the TOF study, phrenic nerve/diaphragms were incubated with pirenzepine (an M1 blocker) at concentrations of 0 nM (control), 10 nM (PZP10), or 100 nM (PZP100). Rocuronium was then administered incrementally until the first twitch tension (T1) had depressed by >95% during TOF stimulation...
April 10, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28386682/-update-in-neuroanesthesiology-key-publications
#8
V-S Eckle, G Schneider
One of the aims of the Scientific Working Group Neuroanesthesia (WAKNA) of the German Society of Anesthesiology and Intensive Care Medicine is to disseminate new findings in the field of neuroscience and neuroanesthesia and to propagate novel therapeutic and diagnostic options into clinical practice. Once a year, the WAKNA displays and discusses recent noteworthy publications from the past 12 months at the German Anesthesia Meeting. In 2016, a new pharmacologic strategy with dexmedetomidine to prevent postoperative pain after craniotomy, the impact of the widely used anesthetic drug propofol on GABA receptor surface expression, a study highlighting the ultrasound-guided detection of increased intracranial pressure, and an article showing the interactions of neuromuscular blocking drugs on the BIS neuromonitoring were presented...
April 6, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28386223/assessment-of-upper-limb-motor-dysfunction-for-children-with-cerebral-palsy-based-on-muscle-synergy-analysis
#9
Lu Tang, Xiang Chen, Shuai Cao, De Wu, Gang Zhao, Xu Zhang
Muscle synergies are considered to be building blocks underlying motor behaviors. The goal of this study is to explore an objective and effective method to assess the upper limb motor dysfunction of cerebral palsy (CP) children from the aspect of muscle synergy analysis. Fourteen CP children and 10 typically developed (TD) children were recruited to perform three similar upper limb motion tasks related to the movements of elbow and shoulder joints, and surface electromyographic (sEMG) signals were recorded from 10 upper arm and shoulder muscles involved in the defined tasks...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28367292/reversal-with-sugammadex-for-rocuronium-induced-deep-neuromuscular-block-after-pretreatment-of-magnesium-sulfate-in-rabbits
#10
Woon Seok Kang, Kyo Sang Kim, Shin Mi Song
BACKGROUND: Magnesium sulfate (MgSO4) has been used in the treatment of pre-eclampsia, hypertension and arrhythmia. Magnesium enhances the neuromuscular block of rocuronium. This study has been conducted to evaluate the reversal efficacy of sugammadex from deep rocuronium-induced neuromuscular block (NMB) during consistent pretreatment of MgSO4 in rabbits. METHODS: Twenty-eight rabbits were randomly assigned to four groups, a control group or study groups (50% MgSO4 150-200 mg/kg and 25 mg/kg/h IV), and received rocuronium 0...
April 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28367286/effect-of-dexamethasone-on-the-onset-time-and-recovery-profiles-of-cisatracurium
#11
Keum Young So, Sang Hun Kim, Ki Tae Jung, Dong Woo Kim
BACKGROUND: The effect of dexamethasone injection on cisatracurium-induced neuromuscular block was compared according to different injection time points. METHODS: One hundred seventeen patients were randomly assigned to three groups: 8 mg of dexamethasone injected intravenously 2-3 h before anesthesia (group A), just before anesthesia induction (group B), and at the end of surgery (control group). Three minutes after anesthesia induction, intubation was performed without neuromuscular blockers, and acceleromyography was initiated...
April 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28367082/neuronal-effects-of-sugammadex-in-combination-with-rocuronium-or-vecuronium
#12
Martin Aldasoro, Adrian Jorda, Constanza Aldasoro, Patricia Marchio, Sol Guerra-Ojeda, Marc Gimeno-Raga, Mª Dolores Mauricio, Antonio Iradi, Elena Obrador, Jose Mª Vila, Soraya L Valles
Rocuronium (ROC) and Vecuronium (VEC) are the most currently used steroidal non-depolarizing neuromuscular blocking (MNB) agents. Sugammadex (SUG) rapidly reverses steroidal NMB agents after anaesthesia. The present study was conducted in order to evaluate neuronal effects of SUG alone and in combination with both ROC and VEC. Using MTT, CASP-3 activity and Western-blot we determined the toxicity of SUG, ROC or VEC in neurons in primary culture. SUG induces apoptosis/necrosis in neurons in primary culture and increases cytochrome C (CytC), apoptosis-inducing factor (AIF), Smac/Diablo and Caspase 3 (CASP-3) protein expression...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28366806/design-and-evaluation-of-artificial-receptors-for-the-reversal-of-neuromuscular-block
#13
Tamás Sohajda, Ákos Fábián, Kata Tuza, Milo Malanga, Gábor Benkovics, Béla Fülesdi, Edömér Tassonyi, Lajos Szente
Applying patient friendly and cost-efficient medications in healthcare will be a real challenge in the 21st century. Sugammadex is a selective, yet expensive agent used for the post-surgical reversal of neuromuscular block since 2008. A wide library of cyclodextrin-based follow-ups, having potentially similar affinity towards target aminosteroid type neuromuscular blocking agents has been established. Almost 20 compounds were assessed with respect to in vitro affinity against three commonly applied drugs. Based on the capillary electrophoretic screening, carboxymethylated and sulfobutylated gamma-cyclodextrin derivatives have the potential to be promising lead molecules for their affinity towards pipecuronium was identical or even superior to Sugammadex...
March 31, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28364503/glutamate-is-a-wake-active-neurotransmitter-in-drosophila-melanogaster
#14
John E Zimmerman, May T Chan, Olivia T Lenz, Brendan T Keenan, Greg Maislin, Allan I Pack
Introduction: In mammals, there is evidence that glutamate has a role as a wake-active neurotransmitter. So using video-based analysis of Drosophila behavior, we undertook a study to examine if glutamate, which has been previously shown to have an excitatory role in neuromuscular junctions in Drosophila, may have a conserved wake-active role in the adult brain. Aims and Methods: Using 6- to 9-day-old female flies, we examined the effect of perturbations of the glutamatergic signaling on total wakefulness and wake bout architecture...
February 1, 2017: Sleep
https://www.readbyqxmd.com/read/28363155/novel-aryl-piperazines-for-alleviation-of-andropause-associated-prostatic-disorders-and-depression
#15
Sonal Gupta, Deepti Pandey, Dhanaraju Mandalapu, Vikas Sharma, Mahendra Shukla, Seema Singh, Nidhi Singh, Santosh Kumar Yadav, Dilip Kumar Tanpula, Surabhi Singh, Jagdamba P Maikhuri, Shubha Shukla, Jawahar Lal, Mohammad I Siddiqi, Gopal Gupta, Vishnu L Sharma
A series of seventeen piperazine derivatives have been synthesized and biologically evaluated for the management of andropause-associated prostatic disorders and depression. Five compounds 16, 19, 20, 21 and 22 significantly inhibited proliferation of androgen-sensitive LNCaP prostatic cell line with EC50 values of 12.4 μM, 15.6 μM, 11.8 μM, 10.4 μM, 12.2 μM respectively and decreased Ca(2+) entry through adrenergic-receptor α1A blocking activity. Anti-androgenic behaviour of compound 19 and 22 was evident by decreased luciferase activity...
March 22, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28353578/rocuronium-induced-neuromuscular-block-and-sugammadex-in-pediatric-patient-with-duchenne-muscular-dystrophy-a-case-report
#16
Ji Eun Kim, Hea Rim Chun
INTRODUCTION: Anesthetic management of patients with Duchenne muscular dystrophy (DMD) is complicated because these patients are more sensitive to nondepolarizing neuromuscular blocking agents (NMBAs) and are vulnerable to postoperative complications, such as postoperative residual curarization and respiratory failure. Sugammadex is a new reversal agent for aminosteroidal NMBAs, but its safety in children is controversial. CLINICAL FEATURES: An 11-year-old boy with DMD underwent general anesthesia for a percutaneous nephrolithotomy...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28351905/comparison-of-cisatracurium-versus-atracurium-in-early-ards
#17
Leanne Moore, Charles Joseph Kramer, Sophie Delcoix-Lopes, Ariel M Modrykamien
BACKGROUND: Administration of cisatracurium in severe ARDS decreases in-hospital mortality. Whether clinical outcomes are cisatracurium-specific or related with all neuromuscular blockers is unknown. This study aimed to compare outcomes in severe ARDS patients treated with cisatracurium versus atracurium. METHODS: Patients admitted in ICUs with a diagnosis of severe ARDS and treated with neuromuscular blocking agents within 72 h of diagnosis were included. Subjects treated with cisatracurium versus atracurium were compared...
March 28, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28351497/a-preferential-delivery-method-to-investigate-direct-neuromuscular-blockade-effect-of-inhaled-anesthetics-on-skeletal-muscle
#18
Ling Ye, Pingliang Yang
Inhaled anesthetics can enhance the effect of neuromuscular blocker, but whether inhaled anesthetics such as sevoflurane have a direct effect on skeletal muscle contractility is unknown. Selectively blocking skeletal muscle may prevent the interference effect of central nervous system. So we decided to evaluate a local application of neuromuscular blocker (NMB) atracurium to prevent the general effect on skeletal muscle. In part 1, sevoflurane (a inhaled anesthetic) minimum alveolar concentrations (MAC) of 1...
April 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28349321/recurrent-laryngeal-nerve-monitoring-and-rocuronium-a-selective-sugammadex-reversal-protocol
#19
Ombeline Empis de Vendin, Denis Schmartz, Laurent Brunaud, Thomas Fuchs-Buder
BACKGROUND: The use of neuromuscular blocking agents may affect intraoperative neuromonitoring during thyroid surgery. A selective neuromuscular recovery protocol was evaluated in a retrospective cohort study during human thyroid neural monitoring surgery. METHODS: One hundred and twenty-five consecutive patients undergoing thyroidectomy with intraoperative neuromonitoring followed a selective neuromuscular block recovery protocol-single intubating dose of rocuronium followed by sugammadex if needed at the first vagal stimulation (V1)...
March 27, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28326549/the-three-finger-toxin-fold-a-multifunctional-structural-scaffold-able-to-modulate-cholinergic-functions
#20
REVIEW
Pascal Kessler, Pascale Marchot, Marcela Silva, Denis Servent
Three-finger fold toxins are miniproteins frequently found in Elapidae snake venoms. This fold is characterized by three distinct loops rich in β-strands and emerging from a dense, globular core reticulated by four highly conserved disulfide bridges. The number and diversity of receptors, channels, and enzymes identified as targets of three-finger fold toxins is increasing continuously. Such manifold diversity highlights the specific adaptability of this fold for generating pleiotropic functions. Although this toxin superfamily disturbs many biological functions by interacting with a large diversity of molecular targets, the most significant target is the cholinergic system...
March 21, 2017: Journal of Neurochemistry
keyword
keyword
50432
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"