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https://www.readbyqxmd.com/read/28920765/medication-usage-and-falls-in-people-with-multiple-sclerosis
#1
Laura Comber, Gillian Quinn, Chris McGuigan, Rose Galvin, Susan Coote
There is a need to identify modifiable risk factors for falls in people with multiple sclerosis (MS) to enable the design of successful falls prevention interventions. There is conflicting evidence regarding the association between medication use and occurrence of falls in MS. A total of 101 people with MS had medications classified using the Anatomical Therapeutic Classification system and number of falls prospectively monitored for 3 months. No association was noted between number of medications and falls...
September 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28920539/the-effects-of-stabilization-splint-treatment-on-the-volume-of-masseter-muscle-in-sleep-bruxism-patients
#2
Suleyman Hakan Tuna, Osman Evren Celik, Onder Ozturk, Murat Golpinar, Aykut Aktas, Huseyin Avni Balcioglu, Filiz Keyf, Bunyamin Sahin
Objective The aim of this study was to evaluate, quantitatively, the volumetric effects of stabilization splint therapy on the masseter muscle of sleep bruxism (SB) patients. Methods The magnetic resonance (MR) images of 16 SB patients diagnosed by polysomnography (PSG) who used stabilization splints for four months were obtained before and after the therapy. The masseter muscle volume was calculated using Cavalieri's principle on the MR images. Results After the splint therapy, the mean volume of the masseter muscle did not reduce significantly...
September 18, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28912570/a-focus-on-extracellular-ca-2-entry-into-skeletal-muscle
#3
REVIEW
Chung-Hyun Cho, Jin Seok Woo, Claudio F Perez, Eun Hui Lee
The main task of skeletal muscle is contraction and relaxation for body movement and posture maintenance. During contraction and relaxation, Ca(2+) in the cytosol has a critical role in activating and deactivating a series of contractile proteins. In skeletal muscle, the cytosolic Ca(2+) level is mainly determined by Ca(2+) movements between the cytosol and the sarcoplasmic reticulum. The importance of Ca(2+) entry from extracellular spaces to the cytosol has gained significant attention over the past decade...
September 15, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28911293/a-survey-of-the-sequelae-of-memorable-anaesthetic-drug-errors-from-the-anaesthetist-s-perspective
#4
D McCawley, A M Cyna, S Prineas, Sgm Tan
Drug errors amongst anaesthetists are common. Although there has been previous work on the system factors involved with drug error, there has been little research on the sequelae of a drug error from the anaesthetist's perspective. To clarify this issue, we surveyed anaesthetists regarding their most memorable drug error to identify associated factors and personal sequelae regarding their professional practice after the event. An online survey was sent anonymously to 989 Australian and New Zealand College of Anaesthetists (ANZCA) Fellows in March 2016 and the results were collected over the following two months...
September 2017: Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/28910498/phosphodiesterase-1a-inhibition-elicits-cgmp-dependent-relaxation-of-rat-mesenteric-arteries
#5
Makhala Michell Khammy, Thomas Dalsgaard, Peter Hjørringgaard Larsen, Claus Tornby Christoffersen, Dorte Clausen, Lars Kyhn Rasmussen, Lasse Folkersen, Morten Grunnet, Jan Kehler, Christian Aalkjaer, Jacob Nielsen
BACKGROUND AND PURPOSE: Phosphodiesterase 1 (PDE1), a subfamily of cyclic nucleotide phosphodiesterases consisting of three isoforms, PDE1A, PDE1B, and PDE1C, has been implicated in regulation of vascular tone. The PDE1 isoform(s) responsible for tone regulation is unknown. This study used isoform-preferring PDE1 inhibitors, Lu AF58027, Lu AF64196, Lu AF66896, and Lu AF67897, to investigate the relative contribution of PDE1 isoforms to regulation of vascular tone. EXPERIMENTAL APPROACH: In rat mesenteric arteries, expression and localisation of Pde1 isoforms were determined by qPCR and in situ hybridisation, and physiological impact of PDE1 inhibition were evaluated by isometric tension recordings...
September 14, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28906185/effects-of-abbreviated-progressive-muscle-relaxation-on-stress-in-jordanian-nursing-students
#6
Hossam Alhawatmeh, Ratchneewan Ross
No abstract text is available yet for this article.
October 2017: Western Journal of Nursing Research
https://www.readbyqxmd.com/read/28905197/systemic-glyceryl-trinitrate-reduces-anal-sphincter-tone-is-there-a-therapeutic-indication
#7
C Connolly, S Tierney, P Grace
BACKGROUND: Nitric oxide (NO) has diverse roles as a biological messenger. [1] Topically applied nitrate donors cause relaxation of the internal anal sphincter (IAS) and facilitate healing of anal fissures [2,3]. Systemic nitrates are commonly used for the treatment of ischaemic heart disease, yet the effects of systemically administered nitrates on the smooth muscle of the IAS are unknown. AIM: Our aim was to test the hypothesis that systemically administered nitrates at a normal dose, cause inhibition of anal sphincter activity...
September 13, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28904224/targeted-inhibition-of-gq-signaling-induces-airway-relaxation-in-mouse-models-of-asthma
#8
Michaela Matthey, Richard Roberts, Alexander Seidinger, Annika Simon, Ralf Schröder, Markus Kuschak, Suvi Annala, Gabriele M König, Christa E Müller, Ian P Hall, Evi Kostenis, Bernd K Fleischmann, Daniela Wenzel
Obstructive lung diseases are common causes of disability and death worldwide. A hallmark feature is aberrant activation of Gq protein-dependent signaling cascades. Currently, drugs targeting single G protein (heterotrimeric guanine nucleotide-binding protein)-coupled receptors (GPCRs) are used to reduce airway tone. However, therapeutic efficacy is often limited, because various GPCRs contribute to bronchoconstriction, and chronic exposure to receptor-activating medications results in desensitization. We therefore hypothesized that pharmacological Gq inhibition could serve as a central mechanism to achieve efficient therapeutic bronchorelaxation...
September 13, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28903042/distortion-of-the-actin-a-triad-results-in-contractile-disinhibition-and-cardiomyopathy
#9
Meera C Viswanathan, William Schmidt, Michael J Rynkiewicz, Karuna Agarwal, Jian Gao, Joseph Katz, William Lehman, Anthony Cammarato
Striated muscle contraction is regulated by the movement of tropomyosin over the thin filament surface, which blocks or exposes myosin binding sites on actin. Findings suggest that electrostatic contacts, particularly those between K326, K328, and R147 on actin and tropomyosin, establish an energetically favorable F-actin-tropomyosin configuration, with tropomyosin positioned in a location that impedes actomyosin associations and promotes relaxation. Here, we provide data that directly support a vital role for these actin residues, termed the A-triad, in tropomyosin positioning in intact functioning muscle...
September 12, 2017: Cell Reports
https://www.readbyqxmd.com/read/28902932/non-pharmacological-interventions-to-promote-the-sleep-of-patients-after-cardiac-surgery-a-systematic-review
#10
Fernanda de Souza Machado, Regina Claudia da Silva Souza, Vanessa Brito Poveda, Ana Lucia Siqueira Costa
Objective: to analyze evidence available in the literature concerning non-pharmacological interventions that are effective to treat altered sleep patterns among patients who underwent cardiac surgery. Method: systematic review conducted in the National Library of Medicine-National Institutes of Health, Cochrane Central Register of Controlled Trials, Latin American and Caribbean Health Sciences Literature, Scopus, Embase, Cumulative Index to Nursing and Allied Health Literature and PsycINFO databases, and also grey literature...
September 12, 2017: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/28900923/tissue-specificity-soce-implications-for-ca-2-handling-in-endothelial-cells
#11
Lothar A Blatter
Many cellular functions of the vascular endothelium are regulated by fine-tuned global and local, microdomain-confined changes of cytosolic free Ca(2+) ([Ca(2+)]i). Vasoactive agonist-induced stimulation of vascular endothelial cells (VECs) typically induces Ca(2+) release through IP3 receptor Ca(2+) release channels embedded in the membrane of the endoplasmic reticulum (ER) Ca(2+) store, followed by Ca(2+) entry from the extracellular space elicited by Ca(2+) store depletion and referred to as capacitative or store-operated Ca(2+) entry (SOCE)...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28899987/heart-failure-related-hyperphosphorylation-in-the-cardiac-troponin-i-c-terminus-has-divergent-effects-on-cardiac-function-in-vivo
#12
Yuejin Li, Guangshuo Zhu, Nazareno Paolocci, Pingbo Zhang, Cyrus Takahashi, Nazli Okumus, Amir Heravi, Gizem Keceli, Genaro Ramirez-Correa, David A Kass, Anne M Murphy
BACKGROUND: In human heart failure, Ser199 (equivalent to Ser200 in mouse) of cTnI (cardiac troponin I) is significantly hyperphosphorylated, and in vitro studies suggest that it enhances myofilament calcium sensitivity and alters calpain-mediated cTnI proteolysis. However, how its hyperphosphorylation affects cardiac function in vivo remains unknown. METHODS AND RESULTS: To address the question, 2 transgenic mouse models were generated: a phospho-mimetic cTnIS200D and a phospho-silenced cTnIS200A, each driven by the cardiomyocyte-specific α-myosin heavy chain promoter...
September 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28899733/paralysis-analysis-does-choice-of-muscle-relaxant-for-obstetric-general-anaesthesia-influence-neonatal-outcomes
#13
EDITORIAL
Matthew Rucklidge
No abstract text is available yet for this article.
August 17, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28899601/baclofen-toxicity-in-kidney-disease
#14
Erin Wolf, Niraj R Kothari, John K Roberts, Matthew A Sparks
Baclofen, a commonly prescribed muscle relaxant, is primarily excreted via the kidneys; toxicity is a potentially serious adverse outcome in patients with decreased kidney function. We describe a patient with end-stage kidney disease receiving hemodialysis who developed neurotoxicity and hemodynamic instability after receiving baclofen for muscle spasms. In this case, prompt recognition of baclofen toxicity and urgent hemodialysis were effective in reversing this toxicity. This case is used to examine the pharmacokinetics and pathophysiology of baclofen toxicity and discuss appropriate diagnosis and management of baclofen toxicity...
September 9, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28898439/evaluation-of-the-use-of-midazolam-as-a-co-induction-agent-with-ketamine-for-anaesthesia-in-sedated-ponies-undergoing-field-castration
#15
A Allison, R Robinson, C Jolliffe, P M Taylor
BACKGROUND: There are limited investigations comparing ketamine to a ketamine-midazolam co-induction. OBJECTIVES: To compare quality and safety of general anaesthesia induced using ketamine alone with anaesthesia co-induced using ketamine and midazolam. STUDY DESIGN: Randomised, double blinded, placebo controlled trial. METHODS: After i.v. detomidine (20 μg kg(-1) ) thirty-eight ponies undergoing field castration received either 0...
September 12, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28893295/a-brain-computer-interface-driven-by-imagining-different-force-loads-on-a-single-hand-an-online-feasibility-study
#16
Kun Wang, Zhongpeng Wang, Yi Guo, Feng He, Hongzhi Qi, Minpeng Xu, Dong Ming
BACKGROUND: Motor imagery (MI) induced EEG patterns are widely used as control signals for brain-computer interfaces (BCIs). Kinetic and kinematic factors have been proved to be able to change EEG patterns during motor execution and motor imagery. However, to our knowledge, there is still no literature reporting an effective online MI-BCI using kinetic factor regulated EEG oscillations. This study proposed a novel MI-BCI paradigm in which users can online output multiple commands by imagining clenching their right hand with different force loads...
September 11, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28893201/determination-of-the-optimal-inspiratory-pressure-providing-adequate-ventilation-while-minimizing-gastric-insufflation-using-real-time-ultrasonography-in-chinese-children-a-prospective-randomized-double-blind-study
#17
Xiaowei Qian, Qiong Hu, Hang Zhao, Bo Meng, Yang Nan, Hong Cao, Qingquan Lian, Jun Li
BACKGROUND: During facemask ventilation, gastric insufflation is defined as appearance of a comet-tail or an acoustic shadow on ultrasonography. Ultrasonographic measurement of antral cross-section area (CSA) may reflect an insufflated antrum and provide interesting semi-quantitative data in regard to the gastric insufflation. This study aimed to determine the appropriate level of inspiratory pressure sufficient to provide adequate pulmonary ventilation with a lower occurrence of gastric insufflation during facemask pressure-controlled ventilation using real-time ultrasonography in paralyzed children...
September 11, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28891701/sedative-effects-of-intranasal-midazolam-administration-in-wild-caught-blue-fronted-amazon-amazona-aestiva-and-orange-winged-amazon-amazona-amazonica-parrots
#18
Débora P H Schaffer, Nayone L L C de Araújo, Ana Cláudia S Raposo, Emanoel F Martins Filho, João Victor R Vieira, Arianne P Oriá
Safe and effective sedation protocols are important for chemical restraint of birds in clinical and diagnostic procedures, such as clinical evaluations, radiographic positioning, and blood collection. These protocols may reduce stress and ease the management of wild-caught birds, which are susceptible to injury or death when exposed to stressful situations. We compare the sedative effect of intranasal midazolam in wild-caught blue-fronted (Amazona aestiva) and orange-winged (Amazona amazonica) Amazon parrots...
September 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28891689/multimodal-drug-therapy-and-physical-rehabilitation-in-the-successful-treatment-of-capture-myopathy-in-a-lesser-flamingo-phoeniconaias-minor
#19
Michael Stephen McEntire, Carlos R Sanchez
A wild-caught lesser flamingo (Phoeniconaias minor) from the Fort Worth Zoo (Fort Worth, TX, USA) presented with moderate lameness that progressed to the inability to stand 2 days after restraint and handling. Results of blood tests showed severely elevated creatine phosphokinase (CPK) and aspartate aminotransferase (AST) activities, confirming suspected capture myopathy. Intensive supportive therapy, consisting of intravenous fluids and muscle relaxants, along with physical rehabilitation therapy, nutritional support, and anxiolytics, were instituted to aid in relaxation and muscle regeneration...
September 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28891380/stories-of-hell-and-healing-internet-users-construction-of-benzodiazepine-distress-and-withdrawal
#20
Alison M Fixsen, Damien Ridge
Benzodiazepines are a group of drugs used mainly as sedatives, hypnotics, antiepileptics, and muscle relaxants. Consumption is recommended for 2 to 4 weeks only, due to fast onset of dependency and potentially distressing withdrawal symptoms. Few peer-review studies have drawn on the user experiences and language to appreciate firsthand experiences of benzodiazepine withdrawal or discontinuation syndrome. We looked extensively at patient stories of benzodiazepine withdrawal and recovery on Internet support sites and YouTube...
September 1, 2017: Qualitative Health Research
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