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https://www.readbyqxmd.com/read/29149702/an-hplc-tandem-mass-spectrometry-for-quantification-of-et-26-hcl-and-its-major-metabolite-in-plasma-and-application-to-a-pharmacokinetic-study-in-rats
#1
Xu Chen, Wensheng Zhang, Sandy Rios, Miriam B Morkos, Xiaoli Ye, Gen Li, Xuehua Jiang, Zhijun Wang, Ling Wang
ET-26-HCl is a new analog of etomidate, a short-acting anesthetic drug, with less adrenal cortex inhibition. The pharmacokinetics of ET-26-HCl in rats needs to be determined for future clinical trials in human subjects. In order to facilitate the pharmacokinetic study, a liquid chromatography based tandem mass spectrometric (HPLC-MS/MS) method was developed and validated for quantification of ET-26-HCl and its major metabolite, ET-26-acid. These two compounds and gabapentin (internal standard) were extracted using a protein precipitation method with methanol and detected by Multiple Reaction Monitoring of m/z transition of 275...
November 8, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29148034/role-of-p62-sqstm1-beyond-autophagy-a-lesson-learned-from-drug-induced-toxicity-in-vitro
#2
Fernando Alegre, Ángela B Moragrega, Miriam Polo, Alberto Marti-Rodrigo, Juan V Esplugues, Ana Blas-Garcia, Nadezda Apostolova
BACKGROUND AND PURPOSE: SQSTM1/p62 is a multifunctional, stress-induced, scaffold protein involved in multiple cellular processes including autophagic clearance, regulation of inflammatory responses and redox homeostasis. Alterations in its function have been associated with a long list of human pathologies such as neurodegenerative, metabolic and bone diseases (down-regulation), and cancerogenesis (up-regulation). However, its role in the off-target effects of clinically used drugs is still not understood...
November 17, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29147747/isomers-of-tris-chloropropyl-phosphate-tcpp-in-technical-mixtures-and-environmental-samples
#3
Jimmy W Truong, Miriam L Diamond, Paul A Helm, Liisa M Jantunen
Tris(chloropropyl) phosphate (TCPP) is an environmentally abundant organophosphate ester (OPE). TCPP is comprised of four isomers with seven possible structures, eight CAS numbers, and even more common names. A review of 54 studies reporting one or more TCPP isomers confirmed that the most abundant and most often reported TCPP isomer was tris(2-chloro-1-methylethyl) phosphate, also known as tris(chloroisopropyl) phosphate (TCiPP, referred to hereafter as TCPP1). Full-scan gas chromatography-mass spectrometry (GC-MS) was used to identify the other three isomers numbered here according to their elution order on a non-polar GC column (DB-5): bis(2-chloro-1-methylethyl) (2-chloropropyl) phosphate (TCPP2), bis(2-chloropropyl)(2-chloro-1-methylethyl) phosphate (TCPP3), and tris(2-chloropropyl) phosphate (TCPP4)...
November 16, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29146642/-when-it-goes-back-to-my-normal-i-suppose-a-qualitative-study-using-online-focus-groups-to-explore-perceptions-of-control-among-people-with-eczema-and-parents-of-children-with-eczema-in-the-uk
#4
Laura M Howells, Joanne R Chalmers, Fiona Cowdell, Sonia Ratib, Miriam Santer, Kim S Thomas
OBJECTIVE: To inform the development of a core outcome set for eczema by engaging with people with eczema and parents of children with eczema to understand their experiences and understanding of the concept 'eczema control'. DESIGN: 37 participants took part in a total of six semi-structured online focus groups held in a typed chatroom with 5-7 participants per group. Three groups involved adults with eczema and three groups involved parents of children with eczema...
November 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/29145844/development-and-evaluation-of-an-interferon-gamma-assay-for-the-diagnosis-of-tuberculosis-in-red-deer-experimentally-infected-with-mycobacterium-bovis
#5
María Ángeles Risalde, Jobin Thomas, Iker Sevilla, Miriam Serrano, Jose Antonio Ortíz, Joseba Garrido, Mercedes Domínguez, Lucas Domínguez, Christian Gortázar, Jose Francisco Ruíz-Fons
BACKGROUND: Red deer (Cervus elaphus) is regarded as an epidemiologically relevant host for Mycobacterium bovis (M. bovis) and closely related members of the Mycobacterium tuberculosis complex that cause animal tuberculosis (TB). The standard antemortem screening test for the detection of TB in deer is the intradermal tuberculin skin test, but the detection of interferon-gamma (IFNγ) produced by white blood cells exposed to M. bovis antigens can be used as an alternative or supplemental assay in most TB eradication/control programs...
November 16, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29144100/extramedullary-metastatic-plasmacytoma-in-a-multiple-myeloma-patient
#6
Alessandro Pileri, Elena Zamagni, Claudio Agostinelli, Paola Tacchetti, Miriam Leuzzi, Michele Cavo, Annalisa Patrizi
No abstract text is available yet for this article.
November 16, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29143119/infectious-and-non-infectious-diseases-causing-the-air-crescent-sign-a-state-of-the-art-review
#7
REVIEW
Joyce Betta Sevilha, Rosana Souza Rodrigues, Miriam Menna Barreto, Gláucia Zanetti, Bruno Hochhegger, Edson Marchiori
Aspergilloma, also known as mycetoma or fungus ball, is characterized by a round or oval mass with soft-tissue attenuation within a preexisting lung cavity. The typical computed tomography (CT) aspect of an aspergilloma is a mass separated from the wall of the cavity by an airspace of variable size and shape, resulting in the air crescent sign, also known as the meniscus sign. This CT feature is non-specific and can be simulated by several other entities that result in intracavitary masses. This review describes the main clinical and imaging aspects of the infectious and non-infectious diseases that may present with fungus-ball appearance, including pulmonary hydatid cyst, Rasmussen aneurysm, pulmonary gangrene, intracavitary clot, textiloma, lung cancer, metastasis, and teratoma, focusing on the differential diagnosis...
November 15, 2017: Lung
https://www.readbyqxmd.com/read/29142237/inner-ear-otolith-asymmetry-in-late-larval-cichlid-fish-oreochromis-mossambicus-perciformes-showing-kinetotic-behaviour-under-diminished-gravity
#8
Ralf Anken, Miriam Knie, Reinhard Hilbig
The inner ears of all vertebrates are designed to perceive auditory and vestibular inputs. Although a tremendous diversity in the inner ear can be found even among bony fishes, the morphologies of the utricle and of the semicircular canals are rather conservative among vertebrates. Fish show kinetoses under reduced gravity (spinning movements and looping responses) and are regarded model organisms concerning the performance of the otolithic organs. Otoliths can be analysed easily because they are compact, in contrast to the otoconial masses of other vertebrates...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29141900/imminent-health-crises-among-the-rohingya-people-of-myanmar
#9
EDITORIAL
Nicola S Pocock, Syed S Mahmood, Cathy Zimmerman, Miriam Orcutt
No abstract text is available yet for this article.
November 15, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29141763/pilot-study-of-the-addition-of-mass-treatment-for-malaria-to-existing-school-based-programs-to-treat-neglected-tropical-diseases
#10
Lauren M Cohee, Moses Chilombe, Andrew Ngwira, Samuel K Jemu, Don P Mathanga, Miriam K Laufer
Malaria and neglected tropical diseases (NTDs), including schistosomiasis and soil transmitted helminths, threaten the health of school aged in sub-Saharan Africa. Established school-based mass drug administration (MDA) programs are used to control NTDs. Recent clinical trials have shown benefit of mass treatment of malaria in schools. The potential of adding malaria treatment to existing NTD programs has not been thoroughly evaluated. We offered malaria treatment with artemether-lumefantrine during routine NTD MDA and developed peer education programs in two primary schools in southern Malawi...
November 6, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29141708/sensitive-detection-of-neonicotinoid-insecticides-and-other-selected-pesticides-in-pollen-and-nectar-using-nanoflow-liquid-chromatography-orbitrap-tandem-mass-spectrometry
#11
David Moreno-González, Jaime Alcántara-Durán, Bienvenida Gilbert-López, Miriam Beneito-Cambra, Víctor M Cutillas, Łukasz Rajski, Antonio Molina-Díaz, Juan F García-Reyes
In this work, a new method based on nanoflow LC with high-resolution MS was developed for the determination ofeight pesticides in pollen and nectar samples, including neonicotinoid insecticides and other selected pesticides commonly found in bees and beeswax. Detection was undertaken with a hybrid quadrupole-Orbitrap mass spectrometer (Q Exactive™) equipped with a commercial nanospray ion source. The extraction of pesticides from pollen samples was performed by a modified micro-QuEChERS method scaled down to Eppendorf tubes, whereas nectar samples were simply diluted with a water–methanol (95 + 5, v/v) solution...
November 15, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/29141438/synthesis-and-stability-of-hydrogen-selenide-compounds-at-high-pressure
#12
Edward J Pace, Jack Binns, Miriam Peña Alvarez, Philip Dalladay-Simpson, Eugene Gregoryanz, Ross T Howie
The observation of high-temperature superconductivity in hydride sulfide (H2S) at high pressures has generated considerable interest in compressed hydrogen-rich compounds. High-pressure hydrogen selenide (H2Se) has also been predicted to be superconducting at high temperatures; however, its behaviour and stability upon compression remains unknown. In this study, we synthesize H2Se in situ from elemental Se and molecular H2 at pressures of 0.4 GPa and temperatures of 473 K. On compression at 300 K, we observe the high-pressure solid phase sequence (I-I'-IV) of H2Se through Raman spectroscopy and x-ray diffraction measurements, before dissociation into its constituent elements...
November 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29139207/patient-reported-outcomes-of-slow-single-arc-rotation-do-we-need-rotating-gantries
#13
Brendan Whelan, Miriam Welgampola, Leigh McGarvie, Kuldeep Makhija, Robin M Turner, Lois Holloway, Ilana Feain, Michael Jackson, Michael Barton, Paul Keall
INTRODUCTION: Patient rotation could greatly simplify radiation therapy delivery, with particularly important ramifications for fixed beam treatment with protons, heavy ions, MRI-Linacs, and low cost Linacs. Patient tolerance is often cited as a barrier to widespread implementation to patient rotation; however, no quantitative data addressing this issue exists. In this study, patient reported experiences of slow, single arc rotation in upright (sitting) and lying orientations are reported...
November 15, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/29138398/characterization-of-macrophages-from-schizophrenia-patients
#14
Paul R Ormel, Hans C van Mierlo, Manja Litjens, Miriam E van Strien, Elly M Hol, René S Kahn, Lot D de Witte
Genetic, epidemiological and post mortem studies have described an association between schizophrenia (SCZ) and the immune system. Microglia, the tissue-resident macrophages of the brain, not only play an essential role in inflammatory processes, but also in neurodevelopment and synapse refinement. It has therefore been hypothesized that aberrant functioning of these myeloid immune cells is involved in SCZ pathogenesis. Until now cellular research into the role of myeloid cells in SCZ has been limited to monocytes and functional assays are lacking...
November 14, 2017: NPJ Schizophrenia
https://www.readbyqxmd.com/read/29138109/mesopontine-neurons-implicated-in-anesthetic-loss-of-consciousness-have-either-ascending-or-descending-axonal-projections-but-not-both
#15
Adi Miriam Goldenberg, Anne Minert, Yelena Fishman, Gilly Wolf, Marshall Devor
The MPTA (mesopontine tegmental anesthesia area) is a key node in a network of axonal pathways that collectively engage the key components of general anesthesia: immobility and atonia, analgesia, amnesia and loss-of-consciousness. In this study we have applied double retrograde tracing to analyze MPTA connectivity, with a focus on axon collateralization. Prior tracer studies have shown that collectively, MPTA neurons send descending projections to spinal and medullary brain targets associated with atonia and analgesia as well as ascending projections to forebrain structures associated with amnesia and arousal...
November 11, 2017: Neuroscience
https://www.readbyqxmd.com/read/29138033/randomized-trial-of-high-and-low-fidelity-simulation-to-teach-intrauterine-contraception-placement
#16
Siripanth Nippita, Miriam J Haviland, Sara F Voit, Judith Perez-Peralta, Michele R Hacker, Maureen E Paul
BACKGROUND: High fidelity simulation creates conditions that resemble real circumstances, and can help teach procedures such as intrauterine contraception placement. Its impact on skill retention has not been studied. OBJECTIVE: To evaluate novice learners' skills, attitudes, and knowledge on placement of intrauterine contraception when trained using a high-fidelity commercially available simulator compared with a low-fidelity simulator. STUDY DESIGN: We recruited senior nurse practitioner students and interns in obstetrics and gynecology and family medicine inexperienced with intrauterine contraception placement...
November 11, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29136336/effect-of-polymorphisms-on-the-pharmacokinetics-pharmacodynamics-and-safety-of-sertraline-in-healthy-volunteers
#17
Miriam Saiz-Rodríguez, Carmen Belmonte, Manuel Román, Dolores Ochoa, Dora Koller, María Talegón, María C Ovejero-Benito, Rosario López-Rodríguez, Teresa Cabaleiro, Francisco Abad-Santos
Sertraline is a selective serotonin reuptake inhibitor (SSRI) widely metabolized in the liver by cytochrome P450 (CYP) enzymes. Besides, it is a P-glycoprotein substrate. Moreover, serotonin transporters and serotonin receptors are involved in its efficacy and safety. The aim of the present study was to evaluate the role of polymorphisms of metabolizing enzymes, transporters and receptors on the pharmacokinetics, pharmacodynamics and tolerability of sertraline in healthy volunteers. Forty-six healthy volunteers (24 men and 22 women) receiving a 100-mg single oral dose of sertraline were genotyped for 17 genetic variants of CYP enzymes (CYP2B6, CYP2C9, CYP2C19, CYP2D6), ATP binding cassette subfamily B member 1 (ABCB1), Solute carrier family 6 member 4 (SLC6A4), 5-Hydroxytryptamine receptor 2A (HTR2A) and 5-Hydroxytryptamine receptor 2C (HTR2C) genes...
November 14, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29135988/evolution-of-acute-hepatitis-c-virus-infection-in-a-large-european-city-trends-and-new-patterns
#18
César Garriga, Sandra Manzanares-Laya, Patricia García de Olalla, Pilar Gorrindo, Sabela Lens, Ricard Solà, María Martínez-Rebollar, Montserrat Laguno, Jordi Navarro, Xavier Torras, Mercè Gurguí, María-Jesús Barberá, Josep Quer, Eva Masdeu, Pere Simón, Miriam Ros, Anna de Andrés, Joan A Caylà
The aims of this study were to describe the evolution of acute hepatitis C virus (HCV) infections since 2004 and to determine its associated factors. Acute HCV infections diagnosed in Barcelona from 2004 to 2015 were included. Incidence ratios (IR) were then estimated for sex and age groups. Cases were grouped between 2004-2005, 2006-2011 and 2012-2015, and their incidence rate ratios (IRR) were calculated. In addition, risk factors for acute HCV infection were identified using multinomial logistic regression for complete, available and multiple imputed data...
2017: PloS One
https://www.readbyqxmd.com/read/29135458/immediate-effects-of-osteopathic-treatment-versus-therapeutic-exercise-on-patients-with-chronic-cervical-pain
#19
Xabier Galindez-Ibarbengoetxea, Igor Setuain, Robinson Ramírez-Velez, Lars L Andersen, Miriam González-Izal, Andoni Jauregi, Mikel Izquierdo
Context • Alternatives to medication for immediate pain relief are needed because long-term use of pain medication has been associated with adverse effects. High-velocity, low-amplitude (HVLA) manipulation techniques (MTs) and craniocervical flexion (CCF) exercises have been frequently used in the management of chronic cervical pain. Objective • The study intended to compare the immediate effects on pain of a treatment using HVLA manipulation versus one using a CCF exercise protocol. Design • The research team designed a single-blinded, randomized clinical trial...
November 14, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/29134986/phase-separation-in-organic-aerosol
#20
Miriam Arak Freedman
Organic aerosol is ubiquitous in the atmosphere, and impacts climate through the scattering and absorption of light and through the formation of nuclei for cloud droplets. These aerosol particles, which are composed of organic compounds and salts, are of great recent interest due to the complex chemistry that occurs within the particles as well as at the air-aerosol interface. Historically, organic aerosol was thought to undergo two phase transitions as the relative humidity around the particles is varied: efflorescence (crystallization) and deliquescence (water uptake)...
November 14, 2017: Chemical Society Reviews
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