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https://www.readbyqxmd.com/read/28527424/influence-of-chronic-stretching-on-muscle-performance-systematic-review
#1
D M Medeiros, C S Lima
The aim of the current study was to investigate the influence of chronic stretching on muscle performance (MP) by a systematic review. The search strategy included MEDLINE, PEDro, Cochrane CENTRAL, LILACS, and manual search from inception to June 2016. Randomized and controlled clinical trials, non-randomized, and single group studies that have analyzed the influence of flexibility training (FT) (using any stretching technique) on MP were included. Differently, studies with special populations (children, elderly, and people with any dysfunction/disease), and articles that have used FT protocols shorter than three weeks or 12 sessions were excluded...
May 17, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28526694/measuring-osmosis-and-hemolysis-of-red-blood-cells
#2
Lauren K Goodhead, Frances M MacMillan
Since the discovery of the composition and structure of the mammalian cell membrane, biologists have had a clearer understanding of how substances enter and exit the cell's interior. The selectively permeable nature of the cell membrane allows the movement of some solutes and prevents the movement of others. This has important consequences for cell volume and the integrity of the cell and, as a result, is of utmost clinical importance, for example in the administration of isotonic intravenous infusions. The concepts of osmolarity and tonicity are often confused by students as impermeant isosmotic solutes such as NaCl are also isotonic; however, isosmotic solutes such as urea are actually hypotonic due to the permeant nature of the membrane...
June 1, 2017: Advances in Physiology Education
https://www.readbyqxmd.com/read/28526226/experimental-pain-in-the-groin-may-refer-into-the-lower-abdomen-implications-to-clinical-assessments
#3
M K Drew, T S Palsson, R P Hirata, M Izumi, G Lovell, M Welvaert, P Chiarelli, P G Osmotherly, T Graven-Nielsen
OBJECTIVES: To investigate the effects of experimental adductor pain on the pain referral pattern, mechanical sensitivity and muscle activity during common clinical tests. DESIGN: Repeated-measures design. METHODS: In two separate sessions, 15 healthy males received a hypertonic (painful) and isotonic (control) saline injection to either the adductor longus (AL) tendon to produce experimental groin pain or into the rectus femoris (RF) tendon as a painful control...
April 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28526086/comparison-of-fluid-balance-and-hemodynamic-and-metabolic-effects-of-sodium-lactate-versus-sodium-bicarbonate-versus-0-9-nacl-in-porcine-endotoxic-shock-a-randomized-open-label-controlled-study
#4
Thibault Duburcq, Arthur Durand, Anne-Frédérique Dessein, Joseph Vamecq, Jean-Claude Vienne, Dries Dobbelaere, Karine Mention, Claire Douillard, Patrice Maboudou, Valery Gmyr, François Pattou, Mercé Jourdain, Fabienne Tamion, Julien Poissy, Daniel Mathieu, Raphaël Favory
BACKGROUND: Sodium lactate has been shown to improve hemodynamics and avoid fluid overload. The objective of this study was to confirm a beneficial effect on fluid balance with sodium lactate infusion and to specify whether the advantage of lactate is related to a negative chloride balance, its particular metabolism, or simply its energy load. METHODS: This was an interventional, randomized, open-label, controlled experimental study. Fifteen female "large white" pigs (2 months old) were challenged with intravenous infusion of Escherichia coli endotoxin...
May 19, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28524025/-effect-of-esmolol-on-hemodynamics-and-clinical-outcomes-in-patients-with-septic-shock
#5
Shupeng Wang, Min Li, Jun Duan, Li Yi, Xu Huang, Desheng Chen, Gang Li
OBJECTIVE: To evaluate the effect of heart rate control with esmolol on hemodynamics, inflammatory cytokines and clinical outcomes in patients with septic shock. METHODS: A prospective randomized controlled trial was conducted. The patients with septic shock admitted to Department of Critical Care Medicine of China-Japan Friendship Hospital from August 2014 to October 2016 were enrolled. After 24 hours of resuscitation and other therapy, they were randomly divided into two groups by sealed envelope...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28520883/effect-of-isotonic-versus-hypotonic-maintenance-fluid-therapy-on-urine-output-fluid-balance-and-electrolyte-homeostasis-a-crossover-study-in-fasting-adult-volunteers
#6
N Van Regenmortel, T De Weerdt, A H Van Craenenbroeck, E Roelant, W Verbrugghe, K Dams, M L N G Malbrain, T Van den Wyngaert, P G Jorens
Background.: Daily and globally, millions of adult hospitalized patients are exposed to maintenance i.v. fluid solutions supported by limited scientific evidence. In particular, it remains unclear whether fluid tonicity contributes to the recently established detrimental effects of fluid, sodium, and chloride overload. Methods.: This crossover study consisted of two 48 h study periods, during which 12 fasting healthy adults were treated with a frequently prescribed solution (NaCl 0...
May 16, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28515029/tolvaptan-utilization-in-children-with-chronic-hyponatremia-due-to-inappropriate-antidiuretic-hormone-secretion-siadh-three-case-reports-and-review-of-the-literature
#7
Gerdi Tuli, Daniele Tessaris, Luisa De Sanctis, Patrizia Matarazzo
Hyponatremia is the most common electrolyte disorder among hospitalized patients and it is sometimes considered as a poor outcome predictor. Its correction is thus indicated, even in asymptomatic patients. The conventional treatment is represented by fluid restriction in presence of euvolemia or hypervolemia; whereas loop diuretics are used in some hypervolemic conditions (cardiac heart failure, liver cirrhosis and nephrotic syndrome) and intravenous isotonic or hypertonic solution are administered in hypovolemic conditions...
May 17, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28512053/effect-of-chitosan-and-coagulation-factors-on-the-wound-repair-phenotype-of-bioengineered-blood-clots
#8
Caroline D Hoemann, Catherine Marchand, Georges-Etienne Rivard, Hani El-Gabalawy, Patrice E Poubelle
Controlling the blood clot phenotype in a surgically prepared wound is an evolving concept in scaffold-guided tissue engineering. Here, we investigated the effect of added chitosan (80% or 95% Degree of Deacetylation, DDA) or coagulation factors (recombinant human Factor VIIa, Tissue Factor, thrombin) on inflammatory factors released by blood clots. We tested the hypothesis that 80% DDA chitosan specifically enhances leukotriene B4 (LTB4) production. Human or rabbit whole blood was combined with isotonic chitosan solutions, coagulation factors, or lipopolysaccharide, cultured in vitro at 37°C, and after 4hours the serum was assayed for LTB4 or inflammatory factors...
May 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28503840/a-critical-note-on-treatment-of-a-severe-diltiazem-intoxication-high-dose-calcium-and-glucagon-infusions
#9
N M Van Veggel, G J Van der Veen, T C Jansen, E M Westerman
The morbidity and mortality of a severe calcium channel blocker intoxication is high due to serious toxic cardiac effects. Its treatment is supported by low-quality evidence from heterogeneous literature. We describe a case of a severe diltiazem intoxication and critically appraise the efficacy and role of high-dose calcium and glucagon infusions. A 53-year-old woman was admitted to the emergency department with a cardiogenic shock with complete AV block, not responding to atropine, isoprenaline and an external pacemaker...
May 15, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28497085/evaluation-of-water-and-electrolytes-disorders-in-severe-acute-diarrhea-patients-treated-by-who-protocol-in-eight-large-hospitals-in-tehran-a-nephrology-viewpoint
#10
Alireza Soleimani, Fatemeh Foroozanfard, Mohammad Reza Tamadon
Introduction: The most common cause of death from diarrhea is the shock caused by dehydration, electrolytes and acid-base disorders. Objectives: The aim of this study was to evaluate water and electrolytes disorders in diarrhea patients after treating severe acute diarrhea. Patients and Methods: In this study we used a historical cohort and studied patients who were hospitalized due to acute diarrhea and were similarly treated for dehydration and water and electrolyte disorders as recommended by the World Health Organization (WHO) guideline...
2017: Journal of Renal Injury Prevention
https://www.readbyqxmd.com/read/28493077/lung-protective-effects-of-low-volume-resuscitation-and-pharmacologic-treatment-of-swine-subjected-to-polytrauma-and-hemorrhagic-shock
#11
Vahagn C Nikolian, Baihong Pan, Tomaz Mesar, Isabel S Dennahy, Patrick E Georgoff, Xiuzhen Duan, Baoling Liu, Xizi Wu, Michael J Duggan, Hasan B Alam, Yongqing Li
Hemorrhage is a common cause of death in the battlefield. Valproic acid (VPA) has been associated with improved outcomes in multiple models of trauma, when combined with isotonic fluid resuscitation. However, isotonic fluid administered in this setting is logistically impractical and may be associated with complications. In this study, we sought to evaluate the feasibility and immunologic impact of combining VPA treatment with low-volume hypertonic saline (HTS). In vivo: female Yorkshire swine were subjected to hemorrhage (40% total blood volume) and polytrauma (rib fracture and delayed liver injury)...
May 10, 2017: Inflammation
https://www.readbyqxmd.com/read/28492611/the-effect-of-topical-treatments-for-crs-on-the-sinonasal-epithelial-barrier
#12
M Ramezanpour, A Rayan, J L P Smith, S Vreugde
BACKGROUND: Several topical treatments are used in the management of Chronic Rhinosinusitis (CRS), some of which the safety and efficacy has yet to be determined. The purpose of this study was to investigate the effect of commonly used topical treatments on the sinonasal epithelial barrier. METHODS: Normal saline (0.9% Sodium Chloride), hypertonic saline (3% Sodium Chloride), FESS Sinu-Cleanse Hypertonic, FLO Sinus Care and Budesonide 1 mg/ 2 ml were applied to the apical side of air-liquid interface (ALI) cultures of primary human nasal epithelial cells (HNECs) from CRS patients (n=3) and non-CRS controls (n=3) for 24 hours...
May 10, 2017: Rhinology
https://www.readbyqxmd.com/read/28483567/mathematical-model-for-isometric-and-isotonic-muscle-contractions
#13
R De Vita, R Grange, P Nardinocchi, L Teresi
A new mathematical model is presented to describe both the active and passive mechanics of muscles. In order to account for the active response, a two-layer kinematics that introduces both the visible and rest lengths of the muscle is presented within a rational mechanics framework. The formulation is based on an extended version of the principle of virtual power and the dissipation principle. By using an accurate constitutive description of muscle mobility under activation, details of microscopic processes that lead to muscle contraction are glossed over while macroscopic effects of chemical/electrical stimuli on muscle mechanics are retained...
May 5, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28474951/_-36-96-kr_-60-low-z-boundary-of-the-island-of-deformation-at-n-60
#14
J Dudouet, A Lemasson, G Duchêne, M Rejmund, E Clément, C Michelagnoli, F Didierjean, A Korichi, G Maquart, O Stezowski, C Lizarazo, R M Pérez-Vidal, C Andreoiu, G de Angelis, A Astier, C Delafosse, I Deloncle, Z Dombradi, G de France, A Gadea, A Gottardo, B Jacquot, P Jones, T Konstantinopoulos, I Kuti, F Le Blanc, S M Lenzi, G Li, R Lozeva, B Million, D R Napoli, A Navin, C M Petrache, N Pietralla, D Ralet, M Ramdhane, N Redon, C Schmitt, D Sohler, D Verney, D Barrientos, B Birkenbach, I Burrows, L Charles, J Collado, D M Cullen, P Désesquelles, C Domingo Pardo, V González, L Harkness-Brennan, H Hess, D S Judson, M Karolak, W Korten, M Labiche, J Ljungvall, R Menegazzo, D Mengoni, A Pullia, F Recchia, P Reiter, M D Salsac, E Sanchis, Ch Theisen, J J Valiente-Dobón, M Zielińska
Prompt γ-ray spectroscopy of the neutron-rich ^{96}Kr, produced in transfer- and fusion-induced fission reactions, has been performed using the combination of the Advanced Gamma Tracking Array and the VAMOS++ spectrometer. A second excited state, assigned to J^{π}=4^{+}, is observed for the first time, and a previously reported level energy of the first 2^{+} excited state is confirmed. The measured energy ratio R_{4/2}=E(4^{+})/E(2^{+})=2.12(1) indicates that this nucleus does not show a well-developed collectivity contrary to that seen in heavier N=60 isotones...
April 21, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28474088/two-doses-of-low-dose-perioperative-dexamethasone-improve-the-clinical-outcome-after-total-knee-arthroplasty-a-randomized-controlled-study
#15
Bin Xu, Jun Ma, Qiang Huang, Ze-Yu Huang, Shao-Yun Zhang, Fu-Xing Pei
To study the clinical effect and safety of two doses of low-dose perioperative dexamethasone on pain and recovery after total knee arthroplasty. Methods A total of 108 patients were included in this randomized, double-blinded, placebo-controlled study. They received two doses of 10 mg IV dexamethasone (group Dexa) or IV isotonic saline (group Placebo). The CRP, IL-6 and pain levels, postoperative nausea and vomiting (PONV) incidence, nausea severity, postoperative fatigue, range of motion, length of stay, analgesic rescue and antiemetic rescue consumption, and complications were compared...
May 4, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28472418/increased-passive-stiffness-promotes-diastolic-dysfunction-despite-improved-ca2-handling-during-left-ventricular-concentric-hypertrophy
#16
Åsmund T Røe, Jan Magnus Aronsen, Kristine Skårdal, Nazha Hamdani, Wolfgang A Linke, Håvard E Danielsen, Ole M Sejersted, Ivar Sjaastad, William E Louch
Aims: Concentric hypertrophy following pressure-overload is linked to preserved systolic function but impaired diastolic function, and is an important substrate for heart failure with preserved ejection fraction. While increased passive stiffness of the myocardium is a suggested mechanism underlying diastolic dysfunction in these hearts, the contribution of a ctive diastolic Ca 2+ cycling in cardiomyocytes remains unclear. In this study, we sought to dissect contributions of passive and active mechanisms to diastolic dysfunction in the concentrically hypertrophied heart following pressure-overload...
May 4, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28465226/repeated-propofol-anesthesia-induced-downregulation-of-hippocampal-mir-132-and-learning-and-memory-impairment-of-rats
#17
Shuo Zhang, Zuodi Liang, Wenchong Sun, Ling Pei
Several studies have reported that neonatal exposure to propofol may cause neurotoxicity in the hippocampus, involving long-term neurodevelopmental impairments. We aimed to detect real-time changes of miR-132 of neonatal rats exposed to propofol anesthesia and to characterize subsequent changes in learning and memory. Seven-day-old Sprague-Dawley rats were injected intraperitoneally with 40 mg/kg propofol at 0, 120, and 240 minutes or with isotonic fat emulsion as controls. Expression levels of miR-132 were assessed, and the mRNA and protein expression levels of p250GAP, a prominent target for miR-132, were evaluated at different time points during development...
April 29, 2017: Brain Research
https://www.readbyqxmd.com/read/28458576/continuous-postoperative-infusion-of-remifentanil-inhibits-the-stress-responses-to-tracheal-extubation-of-patients-under-general-anesthesia
#18
Guoliang Zhao, Xiaoyue Yin, Ya Li, Jianlin Shao
PURPOSE: The study aimed to assess the combined effects of parecoxib with three different doses of remifentanil and its effect on the stress and cough responses following tracheal extubation under general anesthesia. METHODS: A total of 120 patients with American Society of Anesthesiologists (ASA) scores of I or II, undergoing selective thyroidectomy with total intravenous anesthesia (propofol-remifentanil) and tracheal intubation, were randomly allocated to be treated with an intravenous injection of parecoxib and a continuous infusion of remifentanil at 0...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28458431/a-pharmacological-evidence-for-the-presence-of-antihistaminic-and-anticholinergic-activities-in-equisetum-debile-roxb
#19
Shahrukh Ali, Muhammad Ovais Omer, Mueen Ahmad Chaudhry, Muhammad Ashraf, Allah Bukhsh
OBJECTIVE: The study was designed to evaluate possible antihistaminic and anticholinergic activities of Equisetum debile. MATERIALS AND METHODS: Effects of crude ethanolic (Ed.Eth) and effects of crude aqueous (Ed.Aq) extracts of E. debile were studied using isolated guinea pig ileum, rabbit jejunum, and rabbit trachea. Tissue responses were recorded using isotonic and isometric transducers, connected with PowerLab data acquisition system. RESULTS: A dose-dependent (0...
January 2017: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/28457010/evaluation-of-cardiovascular-effects-of-intravenous-robenacoxib-in-dogs
#20
C Desevaux, A-A Marotte-Weyn, P Champeroux, J N King
The objective of the study was to assess the cardiovascular effects of intravenous (IV) dosing with robenacoxib (Onsior(®) ) in conscious adult healthy beagle dogs. The study employed a randomized, open, placebo-controlled, four-phase Latin square design. A total of eight dogs received a single dose of 2 mg/kg and 4 mg/kg IV robenacoxib (test groups), 2 mg/kg subcutaneous (SC) robenacoxib (reference dose and route), and IV isotonic saline (control). There were no significant differences between groups for clinical observations, buccal mucosal bleeding time or blood hematology, coagulation, and clinical chemistry variables in all eight dogs...
April 29, 2017: Journal of Veterinary Pharmacology and Therapeutics
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