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https://www.readbyqxmd.com/read/29338142/patient-controlled-epidural-analgesia-with-and-without-basal-infusion-using-ropivacaine-0-15-and-fentanyl-2%C3%AE-ml-for-labour-analgesia-a-prospective-comparative-randomised-trial
#1
Paraskevi K Matsota, Kalliopi H Drachtidi, Chrysanthi Z Batistaki, Agathi V Karakosta, Ioanna C Koukopoulou, Eugenia I Koursoumi, Georgia G Kostopanagiotou
BACKGROUND: Patient-Controlled Epidural Analgesia (PCEA) is a common practice for labour pain relief. This study aimed to compare two different settings of a PCEA device using the same solution to obtain labour analgesia. METHODS: Fifty two parturients were randomly allocated to receive ropivacaine 0.15% and fentanyl 2γ/mL via a PCEA device either as a background infusion of 5mL/h plus 5mL demand bolus doses with 10 min lockout (group B/D, n=26) or as only demand bolus doses of 5mL with 10 min lockout (group D, n=26)...
January 16, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29335765/wastewater-based-tracing-of-doping-use-by-the-general-population-and-amateur-athletes
#2
Ana Causanilles, Vera Nordmann, Dennis Vughs, Erik Emke, Olivier de Hon, Félix Hernández, Pim de Voogt
The present study investigates the applicability of the chemical analysis of wastewater to assess the use of doping substances by the general population and amateur athletes. To this end, an analytical methodology that can identify and quantify a list of 15 substances from the groups of anabolic steroids, weight loss products, and masking agents in wastewater has been developed. The method uses solid phase extraction to increase the detection sensitivity of the target analytes, expected to be present at very low concentrations (ng L-1 range), and decrease possible matrix interferences...
January 15, 2018: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29330854/combined-spinal-epidural-vs-spinal-anaesthesia-for-caesarean-section-meta-analysis-and-trial-sequential-analysis
#3
REVIEW
M Klimek, R Rossaint, M van de Velde, M Heesen
Combined spinal-epidural and single-shot spinal anaesthesia are both used for caesarean section. It has been claimed in individual trials that combined spinal-epidural is associated with higher sensory spread and greater cardiovascular stability. We set out to gather all available evidence. We performed: a systematic literature search to identify randomised controlled trials comparing combined spinal-epidural with spinal anaesthesia for caesarean section: conventional meta-analysis; trial-sequential analysis; and assessment of trial quality using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system...
January 13, 2018: Anaesthesia
https://www.readbyqxmd.com/read/29318860/-effect-of-transcutaneous-acupoint-electrical-stimulation-on-hemodynamic-fluctuation-caused-by-loosing-tourniquet-in-elderly-patients-undergoing-knee-joint-replacement
#4
Han-Sheng Liang, Yi Feng
OBJECTIVE: To observe the effect of transcutaneous acupoint electrical stimulation (TAES) on hemodynamic fluctuation caused by loosing tourniquet in the elderly patients undergoing knee joint replacement. METHODS: A total of 60 ASA (America Society Anesthesiologist) I or II elderly patients for elective knee joint replacement surgery were randomly divided into control group (30 cases) and TAES group (30 cases). Patients of both groups were treated by intravenous anesthesia, and monitored with bispectral index (BIS, between 45-60) for anesthesia depth, stroke volume variation (SVV) for fluid management, mean arterial pressure (MAP) and cardiac index (CI) for hemodynamic fluctuation evaluation, and with analgesia nociception index (ANI, between 50-70) for remifentanil dosage adjustment...
December 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29313696/spontaneous-hepatic-rupture-in-a-bodybuilder-a-case-report-and-review-of-the-literature
#5
Pietro Mascagni, Fabio Melandro, Zoe Larghi Laureiro, Gianluca Mennini, Massimo Rossi
This article is the first description of a spontaneous hepatic rupture in a young bodybuilder with a history of clenbuterol and ephedrine alkaloid use. The patient presented with a sudden mid-epigastric pain and vomiting. Hemoglobin levels decreased a few hours later and a computed tomography scan was performed which revealed a rupture of the right liver capsule and hemoperitoneum. Two attempts at transarterial embolization did not control the bleeding and a right hemihepatectomy was performed. The pathological report identified a hepatic adenoma, a capsular tear and diffuse peliosis hepatis...
January 9, 2018: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/29216482/enantiomeric-profiling-of-chiral-illicit-drugs-in-a-pan-european-study
#6
Erika Castrignanò, Zhugen Yang, Richard Bade, Jose A Baz-Lomba, Sara Castiglioni, Ana Causanilles, Adrian Covaci, Emma Gracia-Lor, Felix Hernandez, Juliet Kinyua, Ann-Kathrin McCall, Alexander L N van Nuijs, Christoph Ort, Benedek G Plósz, Pedram Ramin, Nikolaos I Rousis, Yeonsuk Ryu, Kevin V Thomas, Pim de Voogt, Ettore Zuccato, Barbara Kasprzyk-Hordern
The aim of this paper is to present the first study on spatial and temporal variation in the enantiomeric profile of chiral drugs in eight European cities. Wastewater-based epidemiology (WBE) and enantioselective analysis were combined to evaluate trends in illicit drug use in the context of their consumption vs direct disposal as well as their synthetic production routes. Spatial variations in amphetamine loads were observed with higher use in Northern European cities. Enantioselective analysis showed a general enrichment of amphetamine with the R-(-)-enantiomer in wastewater indicating its abuse...
December 1, 2017: Water Research
https://www.readbyqxmd.com/read/29209513/can-we-predict-necrosis-intra-operatively-real-time-optical-quantitative-perfusion-imaging-in-surgery-study-protocol-for-a-prospective-observational-in-vivo-pilot-study
#7
Sanne M Jansen, Daniel M de Bruin, Mark I van Berge Henegouwen, Simon D Strackee, Denise P Veelo, Ton G van Leeuwen, Suzanne S Gisbertz
Background: Compromised perfusion as a result of surgical intervention causes a reduction of oxygen and nutrients in tissue and therefore decreased tissue vitality. Quantitative imaging of tissue perfusion during reconstructive surgery, therefore, may reduce the incidence of complications. Non-invasive optical techniques allow real-time tissue imaging, with high resolution and high contrast. The objectives of this study are, first, to assess the feasibility and accuracy of optical coherence tomography (OCT), sidestream darkfield microscopy (SDF), laser speckle contrast imaging (LSCI), and fluorescence imaging (FI) for quantitative perfusion imaging and, second, to identify/search for criteria that enable risk prediction of necrosis during gastric tube and free flap reconstruction...
2017: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/29193073/carbon-and-nitrogen-stable-isotope-analyses-of-ephedra-plant-and-ephedrine-samples-and-their-application-for-methamphetamine-profiling
#8
Cuimei Liu, Peipei Liu, Wei Jia, Yingfeng Fan
In this study, stable isotope ratio analysis was used to track the precursor information of methamphetamine. The δ13 C and δ15 N values of 30 nature ephedra plants, 12 synthetic ephedrine/pseudoephedrine (ephedrine), 14 natural ephedrine, and 987 seized methamphetamine samples were measured and compared. Due to different weather and earth conditions, the δ13 C and δ15 N values of ephedra plants grown in the east and the west of Inner Mongolia showed great difference. The δ15 N values of ephedra plants were consistent with related ephedrine extracted from them...
November 28, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29181387/camp-response-element-binding-protein-expression-in-the-hippocampus-of-rhesus-macaques-with-chronic-ephedrine-addiction
#9
Zongbo Sun, Ye Ma, Shouxing Duan, Lei Xie, Junyao Lv, Jinzhuang Huang, Zhirong Lin, Ruiwei Guo, Shuhua Ma
Background: Drug addiction is classified as a chronic relapse nature brain disease with complicated neurobiology mechanisms. There are an increasing number of researchers that are investigating the possible mechanisms for solving the thorny problem. Methods: The model of chronic addiction of rhesus monkey ephedrine was established, where changes in body weight and behavior were monitored. The expression of cAMP response element binding protein (CREB) in the hippocampus of rhesus monkeys was identified by real-time PCR and Western blot...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29172693/ephedrine-as-a-lead-compound-for-the-development-of-new-dpp-iv-inhibitors
#10
María José Ojeda-Montes, Andrea Ardid-Ruiz, Sarah Tomás-Hernández, Aleix Gimeno, Adrià Cereto-Massagué, Raúl Beltrán-Debón, Miquel Mulero, Santiago Garcia-Vallvé, Gerard Pujadas, Cristina Valls
AIM: Extracts from Ephedra species have been reported to be effective as antidiabetics. A previous in silico study predicted that ephedrine and five ephedrine derivatives could contribute to the described antidiabetic effect of Ephedra extracts by inhibiting dipeptidyl peptidase IV (DPP-IV). Finding selective DPP-IV inhibitors is a current therapeutic strategy for Type 2 diabetes mellitus management. Therefore, the main aim of this work is to experimentally determine whether these alkaloids are DPP-IV inhibitors...
November 27, 2017: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/29151054/effect-of-ephedrine-and-phenylephrine-on-brain-oxygenation-and-microcirculation-in-anaesthetised-patients-with-cerebral-tumours-study-protocol-for-a-randomised-controlled-trial
#11
Klaus Ulrik Koch, Anna Tietze, Joel Aanerud, Gorm von Öettingen, Niels Juul, Jens Christian Hedemann Sørensen, Lone Nikolajsen, Leif Østergaard, Mads Rasmussen
INTRODUCTION: During brain tumour surgery, vasopressor drugs are commonly administered to increase mean arterial blood pressure with the aim of maintaining sufficient cerebral perfusion pressure. Studies of the commonly used vasopressors show that brain oxygen saturation is reduced after phenylephrine administration, but unaltered by ephedrine administration. These findings may be explained by different effects of phenylephrine and ephedrine on the cerebral microcirculation, in particular the capillary transit-time heterogeneity, which determines oxygen extraction efficacy...
November 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/29131996/development-and-application-of-the-diffusive-gradients-in-thin-films-technique-for-simultaneous-measurement-of-methcathinone-and-ephedrine-in-surface-river-water
#12
Yan Zhang, Tingting Zhang, Changsheng Guo, Song Hou, Zhendong Hua, Jiapei Lv, Yuan Zhang, Jian Xu
In this study, a passive sampling technique, diffusive gradients in thin films (DGT) was developed to simultaneously measure two drugs, methcathinone (MC) and ephedrine (EPH) in surface water. Four types of binding gels and four types of filter membranes were tested for the optimal configuration. XAD18 agarose binding gel and agarose diffusive gel, together with polyethersulfone filter membrane were used for measuring MC and EPH in the DGT device. 5% NH3 in acetonitrile was used as the elution solvent, with the elution efficiency for MC and EPH higher than 71%...
November 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29130542/safety-evaluation-of-p-synephrine-following-15%C3%A2-days-of-oral-administration-to-healthy-subjects-a-clinical-study
#13
Mohd Shara, Sidney J Stohs, Mahmoud M Smadi
Extracts of bitter orange (BOE, Citrus aurantium L.) and its primary protoalkaloid p-synephrine are extensively consumed as dietary supplements. p-Synephrine is also present in foods and juices prepared from various Citrus species. The safety of p-synephrine has been questioned as a result of structural similarities with ephedrine. This study assessed the cardiovascular (stimulant) and hemodynamic effects of BOE (49 mg p-synephrine) daily given to 16 healthy subjects for 15 days in a placebo-controlled, cross-over, double-blinded study...
November 12, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29127057/quantitative-analysis-of-clonidine-and-ephedrine-by-a-microfluidic-system-on-chip-electromembrane-extraction-followed-by-high-performance-liquid-chromatography
#14
Mahroo Baharfar, Yadollah Yamini, Shahram Seidi, Monireh Karami
In this work, a microfluidic device was developed for on-chip electromembrane extraction of trace amounts of ephedrine (EPH) and clonidine (CLO) in human urine and plasma samples followed by HPLC-UV analysis. Two polymethylmethacrylate plates were used as substrates and a microchannel was carved in each plate. The microchannel channel on the underneath plate provided the flow pass of the sample solution and the one on the upper plate dedicated to a compartment for the stagnant acceptor phase. A piece of polypropylene sheet was impregnated by an organic solvent and mounted between the two parts of the chip device...
November 2, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29113981/acupressure-for-respiratory-allergic-diseases-a-systematic-review-of-randomised-controlled-trials
#15
Yaqun Liang, George Binh Lenon, Angela Wei Hong Yang
OBJECTIVE: To evaluate the effects and safety of acupressure for the management of respiratory allergic diseases by systematically reviewing randomised controlled trials (RCTs). METHODS: A total of 13 electronic English and Chinese databases were searched until July 2017. Two authors extracted data and evaluated risk of bias independently. Review Manager V.5.3 was employed for data analysis. RESULTS: The literature search identified 186 papers, of which only four of met the inclusion criteria: two for allergic rhinitis (AR) and two for asthma...
November 7, 2017: Acupuncture in Medicine: Journal of the British Medical Acupuncture Society
https://www.readbyqxmd.com/read/29059613/capillary-electrophoresis-separation-of-phenethylamine-enantiomers-using-amino-acid-based-ionic-liquids
#16
Joachim Wahl, Ulrike Holzgrabe
In recent years increasing interest was drawn towards ionic liquids in analytical separation science, such as capillary electrophoresis. Ionic liquids combining tetrabutylammonium cations with chiral amino acid based anions were prepared and investigated as capillary electrophoresis background electrolyte additives for the enantioseparation of ephedrine, pseudoephedrine, and methylephedrine isomers. For the optimization of buffer pH and ionic liquid concentration a design of experiments approach was performed...
October 17, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29058089/evidence-based-treatment-of-neurogenic-orthostatic-hypotension-and-related-symptoms
#17
REVIEW
Sabine Eschlböck, Gregor Wenning, Alessandra Fanciulli
Neurogenic orthostatic hypotension, postprandial hypotension and exercise-induced hypotension are common features of cardiovascular autonomic failure. Despite the serious impact on patient's quality of life, evidence-based guidelines for non-pharmacological and pharmacological management are lacking at present. Here, we provide a systematic review of the literature on therapeutic options for neurogenic orthostatic hypotension and related symptoms with evidence-based recommendations according to the Grading of Recommendations Assessment, Development and Evaluation (GRADE)...
December 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29048834/-preparation-and-performance-characterization-of-gold-nanoparticles-modified-chiral-capillary-electrochromatography-stationary-phase
#18
Lele Xiong, Ruijun Li, Yibing Ji
Gold nanoparticles (GNPs, 15 nm) were prepared and introduced to amino groups derived silica monolithic column. Bovine serum albumin (BSA) was immobilized via covalent modification method onto the carboxylic functionalized GNPs to afford chiral stationary phase (CSP) for enantioseparation. GNPs were well dispersed and successfully incorporated onto the columns with the contents as high as 17.18% by characterization method such as transmission electron microscopy (TEM), ultraviolet (UV)-visible absorption spectra and scanning electron microscopy (SEM)...
July 8, 2017: Se Pu, Chinese Journal of Chromatography
https://www.readbyqxmd.com/read/29044483/hyperbaric-vs-isobaric-bupivacaine-for-spinal-anaesthesia-for-elective-caesarean-section-a-cochrane-systematic-review
#19
REVIEW
B L Sng, N L R Han, W L Leong, R Sultana, F J Siddiqui, P N Assam, E S Chan, K H Tan, A T Sia
Both isobaric and hyperbaric bupivacaine have been used for spinal anaesthesia for elective caesarean section, but it is not clear if one is better than the other. The primary objective of this systematic review was to determine the effectiveness and safety of hyperbaric bupivacaine compared with isobaric bupivacaine administered during spinal anaesthesia for elective caesarean section. We included 10 studies with 614 subjects in the analysis. There was no evidence of differences either in the risk of conversion to general anaesthesia, with a relative risk (95%CI) of 0...
October 17, 2017: Anaesthesia
https://www.readbyqxmd.com/read/29039329/synthesis-characterization-antioxidant-and-brine-shrimp-cytotoxic-activity-of-novel-3-benzothioyl-1-3-hydroxy-3-phenyl-3-propyl-1-methylthiourea
#20
Mohammad Shoaib, Abid Ullah, Syed Wadood Ali Shah, Muhammad Nawaz Tahir
In the present research work novel ephedrine based thiourea derivative, 3-benzothioyl-1-(3-hydroxy-3-phenyl -3-propyl)-1-methylthiourea 4is synthesized and then characterized elemental analyzed via various techniques i.e., Proton NMR, carbon13 NMR and fatherly confirmed via X-ray crystallography. Compound 4 was then screened for their possible antioxidant and cytotoxic potentials. Benzoyl chloride was treated with an equimolar potassium thiocyanate in acetone to achieve benzoyl isothiocyantes. It was then treated with an equimolar (1R, 2S)-(-)-Ephedrine to obtain the 3-benzothioyl-1-(3-hydroxy-3-phenyl-3-propyl)-1-methyl thiourea4...
July 2017: Pakistan Journal of Pharmaceutical Sciences
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