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https://www.readbyqxmd.com/read/28350718/serotonin-syndrome-in-a-pediatric-patient-after-vilazodone-ingestion
#1
Benjamin Laliberte, Omayma A Kishk
Serotonin syndrome (SS) is a serious toxicity that manifests with symptoms such as tremor, hyperthermia, agitation, and altered mental status that may lead to seizures, coma, or death. Selective serotonin reuptake inhibitors may precipitate SS, particularly in combination with other drugs that possess serotonergic activity. We present a case of SS in a 14-month-old after an ingestion of the selective serotonin reuptake inhibitor vilazodone.
March 27, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28344389/reductive-activity-of-free-and-immobilized-cells-of-cyanobacteria-toward-oxophosphonates-comparative-study
#2
Monika Górak, Ewa Żymańczyk-Duda
This report, based on the previous studies, compares the reductive activity of different modes of following photobiocatalysts (on laboratory and preparative scale): Arthrospira maxima, Nostoc cf. muscorum and Nodularia sphaerocarpa, toward diethyl esters of 2-oxopropylphosphonate (1), 2-oxo-2-phenylethylphosphonate (2), and 2-oxobutylphosphonate (3). It was confirmed that immobilization in alginate matrix do not affect the activity and viability of the biocatalysts. Corresponding (S)-hydroxyphosphonates (1a-3a) were obtained with similar efficiency compared to the free-cell mode with the yield and of the optical purity e...
2017: Journal of Applied Phycology
https://www.readbyqxmd.com/read/28343286/a-mimic-of-sexually-motivated-homicide-insect-stings-and-heat-exhaustion-in-a-forest
#3
Nancy X Liu, Michael S Pollanen
We report the case a woman who was found dead in a forest. The body was nude and the position of the body suggested a sexually motivated homicide. We concluded that death was not related to homicide, but was related to the conjunction of environmental factors, including insect stings, and acute psychosis. A medicolegal death investigation with postmortem examination was undertaken to determine cause of death. At the scene, the body was supine with legs spread apart and the knees flexed, exposing the external genitalia...
March 25, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28343265/effect-of-10-cerium-chloride-on-artificial-caries-lesions-of-human-enamel-evaluated-using-quantitative-light-induced-fluorescence-an-in-vitro-study
#4
R Jaisingh, R Shanbhog, B Nandlal, M Thippeswamy
AIM: To evaluate the effect of 10% cerium chloride intervention on pre-demineralised human enamel subjected to cycles of de- and remineralisation. METHODS: This was an in vitro, comparative type study of 60 human enamel samples that were randomly divided into control and test groups. The samples were then subjected to a cycle of demineralisation followed by intervention with respective treatment solutions (control group: placebo solution; test: 10% cerium chloride) for 30 s under constant agitation and then to a 2nd cycle of demineralisation followed by remineralisation using artificial saliva...
March 25, 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28343112/the-impact-of-australian-legislative-changes-on-synthetic-cannabinoid-exposures-reported-to-the-new-south-wales-poisons-information-centre
#5
Rose Cairns, Jared A Brown, Naren Gunja, Nicholas A Buckley
BACKGROUND: The emergence of new psychoactive substances (NPS), including synthetic cannabinoid receptor agonists (SCRAs) poses novel challenges for drug regulation and public health. Misconceptions of safety and legality, coupled with the fact that NPS are undetectable on routine drugs screens contributes to their popularity. Concerns over the unpredictable toxicity and abuse potential of NPS has led to a variety of legislative responses worldwide. We wish to describe Australian trends in SCRA use, examining the effects of legislative changes on calls to Australia's largest poisons centre...
March 23, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28342981/mechanisms-of-in-vivo-release-of-triamcinolone-acetonide-from-plga-microspheres
#6
Amy C Doty, David G Weinstein, Keiji Hirota, Karl F Olsen, Rose Ackermann, Yan Wang, Stephanie Choi, Steven P Schwendeman
Little is known about the underlying effects controlling in vitro-in vivo correlations (IVIVCs) for biodegradable controlled release microspheres. Most reports of IVIVCs that exist are empirical in nature, typically based on a mathematical relationship between in vitro and in vivo drug release, with the latter often estimated by deconvolution of pharmacokinetic data. In order to improve the ability of in vitro release tests to predict microsphere behavior in vivo and develop more meaningful IVIVCs, the in vivo release mechanisms need to be characterized...
March 22, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28342477/effect-of-different-irrigation-systems-on-sealer-penetration-into-dentinal-tubules
#7
Luigi Generali, Francesco Cavani, Valentina Serena, Corinne Pettenati, Elena Righi, Carlo Bertoldi
INTRODUCTION: Different irrigation systems have been developed to improve the efficacy and distribution of the irrigants. The aim of this study was to compare the effect of conventional endodontic needle irrigation with other irrigant delivery and/or agitation systems on sealer penetration into dentinal tubules. METHODS: Fifty single-rooted teeth with round-shaped root canals were distributed in 5 homogeneous groups characterized by the different cleansing system used: conventional endodontic needle irrigation, EndoActivator, Irrisafe, Self-Adjusting File, and EndoVac...
April 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28341980/implementation-and-evaluation-of-a-paediatric-nurse-driven-sedation-protocol-in-a-paediatric-intensive-care-unit
#8
Lélia Dreyfus, Etienne Javouhey, Angélique Denis, Sandrine Touzet, Fabienne Bordet
BACKGROUND: Optimal sedation and analgesia is a challenge in paediatric intensive care units (PICU) because of difficulties in scoring systems and specific metabolism inducing tolerance and withdrawal. Excessive sedation is associated with prolonged mechanical ventilation and hospitalisation. Adult and paediatric data suggest that goal-directed sedation algorithms reduce the duration of mechanical ventilation. We implemented a nurse-driven sedation protocol in a PICU and evaluated its impact...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28340789/a-new-and-efficient-solid-phase-microextraction-approach-for-analysis-of-high-fat-content-food-samples-using-a-matrix-compatible-coating
#9
Selenia De Grazia, Emanuela Gionfriddo, Janusz Pawliszyn
The current work presents the optimization of a protocol enabling direct extraction of avocado samples by a new Solid Phase Microextraction matrix compatible coating. In order to further extend the coating life time, pre-desorption and post-desorption washing steps were optimized for solvent type, time, and degree of agitation employed. Using optimized conditions, lifetime profiles of the coating related to extraction of a group of analytes bearing different physical-chemical properties were obtained. Over 80 successive extractions were carried out to establish coating efficiency using PDMS/DVB 65µm commercial coating in comparison with the PDMS/DVB/PDMS...
May 15, 2017: Talanta
https://www.readbyqxmd.com/read/28338139/adsorption-of-small-inorganic-molecules-on-a-defective-mos2-monolayer
#10
César González, Blanca Biel, Yannick J Dappe
We present a theoretical study of molecular adsorption on defects on a MoS2 monolayer. Based on Density Functional Theory, our calculations confirm that small inorganic molecules, such as CO2, CO, H2O, NO, NO2, H2 and N2, remain bonded to the pristine monolayer through weak van der Waals interactions, suggesting that the molecules may easily diffuse over the clean monolayer. On the other hand, the introduction of defects can lead to three different situations, depending on the defect and the molecule considered: physisorption, chemical (strong) bonding to the metallic defects, namely the Mo substitutional atoms on the S vacancies, and dissociation, that can take place spontaneously at 0 K in some specific cases or by the effect of thermal agitation in molecules such as CO2 or NO2 on the S vacancy...
March 24, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28337445/rapid-chondrocyte-isolation-for-tissue-engineering-applications-the-effect-of-enzyme-concentration-and-temporal-exposure-on-the-matrix-forming-capacity-of-nasal-derived-chondrocytes
#11
Srujana Vedicherla, Conor Timothy Buckley
Laboratory based processing and expansion to yield adequate cell numbers had been the standard in Autologous Disc Chondrocyte Transplantation (ADCT), Allogeneic Juvenile Chondrocyte Implantation (NuQu®), and Matrix-Induced Autologous Chondrocyte Implantation (MACI). Optimizing cell isolation is a key challenge in terms of obtaining adequate cell numbers while maintaining a vibrant cell population capable of subsequent proliferation and matrix elaboration. However, typical cell yields from a cartilage digest are highly variable between donors and based on user competency...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28337083/continuous-infusion-etomidate-in-a-patient-receiving-extracorporeal-membrane-oxygenation
#12
Joseph M LaRochelle, Bonnie Desselle, Janet L Rossi
We describe a 16-year-old, 65-kg male deployed on extracorporeal membrane oxygenation (ECMO) for refractory respiratory failure secondary to ingestion of multiple substances. During his ECMO course, standard sedative and analgesic strategies failed and alternative medications were used. The patient received various dosages of fentanyl, morphine, hydromorphone, clonidine patches, dexmedetomidine, lorazepam, methadone, pentobarbital, olanzapine, and propofol. Despite administration of multiple agents, on day 29 of ECMO the patient experienced elevated blood pressures due to agitation, and continuous infusion etomidate was started...
January 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28334978/therapeutic-window-of-dopamine-d2-3-receptor-occupancy-to-treat-psychosis-in-alzheimer-s-disease
#13
Suzanne Reeves, Emma McLachlan, Julie Bertrand, Fabrizia D Antonio, Stuart Brownings, Akshay Nair, Suki Greaves, Alan Smith, David Taylor, Joel Dunn, Paul Marsden, Robert Kessler, Robert Howard
Antipsychotic drugs, originally developed to treat schizophrenia, are used to treat psychosis, agitation and aggression in Alzheimer's disease. In the absence of dopamine D2/3 receptor occupancy data to inform antipsychotic prescribing for psychosis in Alzheimer's disease, the mechanisms underpinning antipsychotic efficacy and side effects are poorly understood. This study used a population approach to investigate the relationship between amisulpride blood concentration and central D2/3 occupancy in older people with Alzheimer's disease by combining: (i) pharmacokinetic data (280 venous samples) from a phase I single (50 mg) dose study in healthy older people (n = 20, 65-79 years); (ii) pharmacokinetic, 18F-fallypride D2/3 receptor imaging and clinical outcome data on patients with Alzheimer's disease who were prescribed amisulpride (25-75 mg daily) to treat psychosis as part of an open study (n = 28; 69-92 years; 41 blood samples, five pretreatment scans, 19 post-treatment scans); and (iii) 18F-fallypride imaging of an antipsychotic free Alzheimer's disease control group (n = 10, 78-92 years), to provide additional pretreatment data...
February 4, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28332736/dementia-related-restlessness-relationship-to-characteristics-of-persons-with-dementia-and-family-caregivers
#14
Natalie G Regier, Laura N Gitlin
OBJECTIVE: Dementia-related restlessness is commonly endorsed by caregivers but not well understood. This study examines differences in characteristics (demographics, cognitive status, physical function, pain, and mood) of persons with dementia whose caregivers endorse restlessness versus those who do not. We also examine the relationship of restlessness to caregiver well-being including burden, upset with behaviors, mastery, and depressive symptomatology. METHODS: We combined baseline data from three caregiver intervention studies of community-dwelling persons with dementia who exhibited neuropsychiatric symptoms (n = 569) as measured by the Agitated Behaviors in Dementia Scale...
March 23, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28332374/comparison-of-dexmedetomidine-and-fentanyl-as-an-adjuvant-to-ropivacaine-for-postoperative-epidural-analgesia-in-pediatric-orthopedic-surgery
#15
Sang Jun Park, Seokyung Shin, Shin Hyung Kim, Hyun Woo Kim, Seung Hyun Kim, Hae Yoon Do, Yong Seon Choi
PURPOSE: Opioids are commonly used as an epidural adjuvant to local anesthetics, but are associated with potentially serious side effects, such as respiratory depression. The aim of this study was to compare the efficacy and safety of dexmedetomidine with that of fentanyl as an adjuvant to epidural ropivacaine in pediatric orthopedic surgery. MATERIALS AND METHODS: This study enrolled 60 children (3-12 years old) scheduled for orthopedic surgery of the lower extremities and lumbar epidural patient-controlled analgesia (PCA)...
May 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28331329/successful-treatment-for-psychomotor-agitation-in-neuromyelitis-optica-spectrum-disorder-with-trazodone-risperidone-combination-a-case-report
#16
Zui Narita, Harumasa Takano, Tomiki Sumiyoshi
Neuromyelitis optica (NMO) is a relapsing disease that typically affects the spinal cord and optic nerves. So far, a few studies have reported pharmacologic treatment for psychiatric symptoms in patients with NMO spectrum disorder (NMOSD). However, no literature has described psychomotor agitation associated with the disease and its treatment. We report an 84-year-old woman with NMOSD whose psychomotor agitation was effectively treated with a combination of trazodone and risperidone. Our observation suggests the ability of augmentation of antipsychotic drugs with antidepressants to ameliorate psychotic symptoms associated with NMOSD...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28330634/epidemiology-of-pain-in-people-with-dementia-living-in-care-homes-longitudinal-course-prevalence-and-treatment-implications
#17
Anto P Rajkumar, Clive Ballard, Jane Fossey, Martin Orrell, Esme Moniz-Cook, Robert T Woods, Joanna Murray, Rhiannon Whitaker, Jane Stafford, Martin Knapp, Renee Romeo, Barbara Woodward-Carlton, Zunera Khan, Ingelin Testad, Anne Corbett
INTRODUCTION: Knowledge regarding the longitudinal course, impact, or treatment implications of pain in people with dementia living in care homes is very limited. METHODS: We investigated the people with dementia living in 67 care homes in London and Buckinghamshire, United Kingdom. Pain, dementia severity, neuropsychiatric symptoms, depression, agitation, and quality-of-life were measured using appropriate instruments at baseline (N = 967) and after 9 months (n = 629)...
March 18, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28330256/immobilized-lipase-catalyzing-glucose-stearate-synthesis-and-their-surfactant-properties-analysis
#18
A Maria Sebatini, Manisha Jain, P Radha, S Kiruthika, Krishnamurthi Tamilarasan
Sugar fatty acid esters are practical importance and have a variety of applications that include surfactants and as an emulsifying agent. In this study, we report glucose stearate synthesis using lipase-Fe3O4 nanoparticles catalyst. The influence of various reaction factors, such as silica gel concentration, molar ratio of sugar/acid, reaction temperature and speed of agitation on esterification by immobilized enzyme was analyzed. The glucose stearate esterification degree of 87.2 % was obtained under the optimized condition: 1:2 molar ratio of glucose/stearic acid, 2 % (w/v) of silica gel at 120 rpm and 40 °C...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330223/multi-response-optimization-for-enhanced-xylitol-production-by-debaryomyces-nepalensis-in-bioreactor
#19
J Sharon Mano Pappu, Sathyanarayana N Gummadi
In this study, the optimization of different process variables-pH (4-6), aeration rate (200-550 rpm) and agitation rate (0.6-1.8 vvm) were investigated using rotating simplex method and uniform design method to enhance xylitol production from xylose by D. nepalensis in a batch stirred tank bioreactor. Maximum xylitol productivity (0.576 g L(-1) h(-1)) was obtained at pH 4.0, agitation 300 rpm and aeration 1.5 vvm by rotating simplex method. Individual optimum values of pH, agitation and aeration are 4...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28328824/early-use-of-noninvasive-techniques-for-clearing-respiratory-secretions-during-noninvasive-positive-pressure-ventilation-in-patients-with-acute-exacerbation-of-chronic-obstructive-pulmonary-disease-and-hypercapnic-encephalopathy-a-prospective-cohort-study
#20
Jinrong Wang, Zhaobo Cui, Shuhong Liu, Xiuling Gao, Pan Gao, Yi Shi, Shufen Guo, Peipei Li
Noninvasive positive-pressure ventilation (NPPV) might be superior to conventional mechanical ventilation (CMV) in patients with acute exacerbations of chronic obstructive pulmonary disease (AECOPDs). Inefficient clearance of respiratory secretions provokes NPPV failure in patients with hypercapnic encephalopathy (HE). This study compared CMV and NPPV combined with a noninvasive strategy for clearing secretions in HE and AECOPD patients.The present study is a prospective cohort study of AECOPD and HE patients enrolled between October 2013 and August 2015 in a critical care unit of a major university teaching hospital in China...
March 2017: Medicine (Baltimore)
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