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https://www.readbyqxmd.com/read/28535438/determination-of-edoxaban-equivalent-concentrations-in-human-plasma-by-an-automated-anti-factor-xa-chromogenic-assay
#1
Ling He, Jarema Kochan, Min Lin, Alexander Vandell, Karen Brown, Francois Depasse
INTRODUCTION: This phase I, open-label, multiple-dose, two-treatment study assessed the relationship between edoxaban equivalent concentration derived from an anti-FXa assay with the summed concentration of edoxaban and its active metabolite, M-4, as assessed by liquid chromatography coupled with tandem mass spectrometry (LC/MS/MS). This study also assessed the relationship between edoxaban plasma concentrations assessed by LC/MS/MS in sodium citrate and lithium heparin tubes. MATERIALS AND METHODS: Healthy volunteers were randomized to receive once-daily edoxaban 60mg or 90mg for 5days (15 participants per treatment group)...
May 7, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28535124/serum-creatinine-and-cystatin-c-provide-conflicting-evidence-of-acute-kidney-injury-following-acute-ingestion-of-potassium-permanganate-and-oxalic-acid
#2
Thilini Madushanka Wijerathna, Indika Bandara Gawarammana, Dhammika Menike Dissanayaka, Chathura Palanagasinghe, Fathima Shihana, Gihani Dassanayaka, Seyed Shahmy, Zoltan Huba Endre, Fahim Mohamed, Nicholas Alan Buckley
AIM: Acute kidney injury (AKI) is common following deliberate self-poisoning with a combination washing powder containing oxalic acid (H2C2O4) and potassium permanganate (KMnO4). Early and rapid increases in serum creatinine (sCr) follow severe poisoning. We investigated the relationship of these increases with direct nephrotoxicity in an ongoing multicenter prospective cohort study in Sri Lanka exploring AKI following poisoning. METHODS: Multiple measures of change in kidney function were evaluated in 48 consenting patients who had serial sCr and serum cystatin C (sCysC) data available...
May 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28535073/paced-auditory-serial-addition-test-pasat-3-0%C3%A2-s-demographically-corrected-norms-for-the-portuguese-population
#3
Claudia Sofia Sousa, Mariana Rigueiro Neves, Ana Margarida Passos, Aristides Ferreira, Maria José Sá
The main goal of this study was to produce adjusted normative data for the Portuguese population on the Paced Auditory Serial Addition Test (PASAT 3.0 s), the version used in the Brief Repeatable Battery of Neuropsychological Tests developed by the National Multiple Sclerosis Society. The study included 326 community-dwelling individuals (199 women and 127 men) aged between 20 and 70 (mean = 40.33, SD = 14.40), who had educational backgrounds ranging from 4 to 23 years of schooling (mean = 12...
May 23, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/28534214/repeatability-of-68-ga-dkfz11-psma-pet-scans-for-detecting-prostate-specific-membrane-antigen-positive-prostate-cancer
#4
Joseph R Osborne, Teja M Kalidindi, Blesida J Punzalan, Kishore Gangangari, Daniel E Spratt, Wolfgang A Weber, Steven M Larson, Naga Vara Kishore Pillarsetty
PURPOSE: We studied the effect of varying specific activity of [(68)Ga]DKFZ-PSMA11 ([(68)Ga]DP11) on repeated imaging of prostate-specific membrane antigen-positive (PSMA+) xenograft tumors. PROCEDURES: Athymic nude mice bearing PC3-PIP (PSMA+) and PC3 (PSMA-) bilateral flank tumors were assessed to study intra- and inter-day repeatability of [(68)Ga]DP11 imaging in mice administered [(68)Ga]DP11 or [(67)Ga]DP11 (as a dilution tracer) using imaging and biodistribution studies...
May 22, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28534187/total-hypothalamic-volume-is-reduced-in-postmortem-brains-of-male-heroin-addicts
#5
Ulf J Müller, Kolja Schiltz, Christian Mawrin, Henrik Dobrowolny, Thomas Frodl, Hans-Gert Bernstein, Bernhard Bogerts, Kurt Truebner, Johann Steiner
The hypothalamus is at the core of the stress responses systems of the brain. Most interestingly, even though changes of HPA-function have been observed in opiate addiction not much is known about structural changes of the hypothalamus. Volumes of hypothalamus in heroin addicts (n = 14) and healthy controls (n = 12) were assessed by using morphometry of serial whole-brain sections. Total brain volume was larger in the heroin group (mean 1478.85 ± 62.34 cm(3) vs. mean 1352.38 ± 103.24 cm(3)), as the heroin group was more than 10 years younger (p = 0...
May 22, 2017: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28533993/bilateral-external-ventricular-drain-placement-and-intraventricular-irrigation-combined-with-concomitant-serial-prone-patient-positioning-a-novel-treatment-for-gravity-dependent-layering-in-bacterial-ventriculitis
#6
Andrew K Chan, Harjus S Birk, John K Yue, Ethan A Winkler, Michael W McDermott
A feared complication of ventricular access for drainage or shunting is ventriculitis. Early diagnosis and treatment is vital to prevent morbidity and mortality. Efficacy of directed antibiotic therapy in ventriculitis is limited by increasing multidrug resistant microorganisms and insufficient systemic antibiotic absorption into the cerebrospinal fluid. Treatment may involve intravenous and/or intrathecal antibiotics as well as external ventricular drainage. We present the first case report suggesting a potential role of a novel technique - direct ventricular catheter-mediated continuous saline irrigation and serial prone patient positioning - to treat a fulminant bacterial ventriculitis...
April 18, 2017: Curēus
https://www.readbyqxmd.com/read/28533812/visualization-of-zinc-dynamics-in-intact-plants-using-positron-imaging-of-commercially-available-65-zn
#7
Nobuo Suzui, Yong-Gen Yin, Satomi Ishii, Hitoshi Sekimoto, Naoki Kawachi
BACKGROUND: Positron imaging can be used to non-destructively visualize the dynamics of a positron-emitting radionuclide in vivo, and is therefore a tool for understanding the mechanisms of nutrient transport in intact plants. The transport of zinc, which is one of the most important nutrient elements for plants, has so far been visualized by positron imaging using (62)Zn (half-life: 9.2 h), which is manufactured in the limited number of facilities that have a cyclotron. In contrast, the positron-emitting radionuclide (65)Zn (half-life: 244 days) is commercially available worldwide...
2017: Plant Methods
https://www.readbyqxmd.com/read/28533437/metformin-inhibits-cellular-proliferation-and-bioenergetics-in-colorectal-cancer-patient-derived-xenografts
#8
Nur-Afidah Mohamed Suhaimi, Wai Min Phyo, Hao Yun Yap, Sharon Heng Yee Choy, Xiaona Wei, Yukti Choudhury, Wai Jin Tan, Luke Anthony Peng Yee Tan, Roger Sik Yin Foo, Suzanne Hui San Tan, Zenia Tiang, Chin Fong Wong, Poh Koon Koh, Min-Han Tan
There is increasing pre-clinical evidence suggesting that metformin, an anti-diabetic drug, has anti-cancer properties against various malignancies including colorectal cancer (CRC). However, majority of evidence which were derived from cancer cell lines and xenografts are likely to overestimate the benefit of metformin since these models are inadequate and require supraphysiological levels of metformin. Here, we generated patient-derived xenografts (PDX) lines from 2 CRC patients to assess the properties of metformin and 5-fluorouracil (5-FU), the first-line drug treatment for CRC...
May 22, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28533262/acute-and-chronic-changes-in-rat-soleus-muscle-after-high-fat-high-sucrose-diet
#9
Kelsey H Collins, David A Hart, Ian C Smith, Anthony M Issler, Raylene A Reimer, Ruth A Seerattan, Jaqueline L Rios, Walter Herzog
The effects of obesity on different musculoskeletal tissues are not well understood. The glycolytic quadriceps muscles are compromised with obesity, but due to its high oxidative capacity, the soleus muscle may be protected against obesity-induced muscle damage. To determine the time-course relationship between a high-fat/high-sucrose (HFS) metabolic challenge and soleus muscle integrity, defined as intramuscular fat invasion, fibrosis and molecular alterations over six time points. Male Sprague-Dawley rats were fed a HFS diet (n = 64) and killed at serial short-term (3 days, 1 week, 2 weeks, 4 weeks) and long-term (12 weeks, 28 weeks) time points...
May 2017: Physiological Reports
https://www.readbyqxmd.com/read/28533086/spatio-temporal-pattern-of-neuronal-differentiation-in-the-drosophila-visual-system-a-user-s-guide-to-the-dynamic-morphology-of-the-developing-optic-lobe
#10
Kathy T Ngo, Ingrid Andrade, Volker Hartenstein
Visual information processing in animals with large image forming eyes is carried out in highly structured retinotopically ordered neuropils. Visual neuropils in Drosophila form the optic lobe, which consists of four serially arranged major subdivisions; the lamina, medulla, lobula and lobula plate; the latter three of these are further subdivided into multiple layers. The visual neuropils are formed by more than 100 different cell types, distributed and interconnected in an invariant highly regular pattern...
May 19, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28532833/estimation-of-fetal-lung-development-using-quantitative-analysis-of-ultrasonographic-images-in-normal-canine-pregnancy
#11
T Banzato, G Zovi, C Milani
We investigated the quantitative analysis of sonographic images to predict fetal lung maturity of the canine foetus in normal pregnancy. Twelve bitches were recruited in the present study. Serial ultrasonographic exams were performed at three pre-determined time periods corresponding to the pseudoglandular (40-48 days of pregnancy), canalicular (49-56 days of pregnancy) and saccular phase (57-63 days of pregnancy) of lung development. Mean grey level (MGL) and the standard deviation of the histogram (SDH) of fetal lung and liver sonographic images were measured with dedicated software...
July 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28532787/evolution-of-avian-encephalomyelitis-virus-during-embryo-adaptation
#12
Rüdiger Hauck, C Gabriel Sentíes-Cué, Ying Wang, Colin Kern, H L Shivaprasad, Huaijun Zhou, Rodrigo A Gallardo
Wild-type avian encephalomyelitis virus (AEV) causes neurological signs in young chicks but no disease in pullets after oral or intracutaneous infection. However, if the virus gets embryo-adapted by serial passaging in chicken embryos, it will cause AE after intracutaneous infection in chickens of all ages. Recently, several cases of AE in layer pullets occurring shortly after intracutaneous vaccination were described. The present investigation was initiated to determine if vaccines that had inadvertently been embryo-adapted were responsible for these outbreaks...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28532601/a-replication-competent-foot-and-mouth-disease-virus-expressing-a-luciferase-reporter
#13
Fuquan Zhang, Eva Perez-Martin, Nick Juleff, Bryan Charleston, Julian Seago
Bioluminescence is a powerful tool in the study of viral infection both in vivo and in vitro. Foot-and-mouth disease virus (FMDV) has a small RNA genome with a limited tolerance to foreign RNA entities. There has been no success in making a reporter FMDV expressing a luciferase in infected cell culture supernatants. We report here for the first time a replication-competent FMDV encoding Nanoluciferase, named as Nano-FMDV. Nano-FMDV is genetically stable during serial passages in cells and exhibits growth kinetics and plaque morphology similar to its parental virus...
May 19, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28532514/course-of-serum-amyloid-a-saa-plasma-concentrations-in-horses-undergoing-surgery-for-injuries-penetrating-synovial-structures-an-observational-clinical-study
#14
Eva Haltmayer, Ilse Schwendenwein, Theresia F Licka
BACKGROUND: Injuries penetrating synovial structures are common in equine practice and often result in septic synovitis. Significantly increased plasma levels of serum amyloid A (SAA) have been found in various infectious conditions in horses including wounds and septic arthritis. Plasma SAA levels were found to decrease rapidly once the infectious stimulus was eliminated. The purpose of the current study was to investigate the usefulness of serial measurements of plasma SAA as a monitoring tool for the response to treatment of horses presented with injuries penetrating synovial structures...
May 22, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28532436/vinblastine-chemotherapy-in-adult-patients-with-langerhans-cell-histiocytosis-a-multicenter-retrospective-study
#15
Abdellatif Tazi, Gwenaël Lorillon, Julien Haroche, Antoine Neel, Stéphane Dominique, Achille Aouba, Jean-David Bouaziz, Constance de Margerie-Melon, Emmanuelle Bugnet, Vincent Cottin, Thibault Comont, Christian Lavigne, Jean-Emmanuel Kahn, Jean Donadieu, Sylvie Chevret
BACKGROUND: Vinblastine is the standard treatment for children with Langerhans cell histiocytosis (LCH). Whether this treatment could be extended to adults with LCH is questionable. This retrospective multicenter study included 35 adult patients (median age 33 years; 23 men; 80% with multisystem LCH) who were treated with vinblastine + steroids as a first-line chemotherapy and followed for a median time of 83 months. The objectives were to determine the overall response rate (based on the Histiocyte Society criteria), disease reactivation rate, toxicity, permanent consequences, and survival rate corresponding to this treatment...
May 22, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28532243/transabdominal-ultrasonography-defined-optimal-and-definitive-bladder-filling-protocol-with-time-trends-during-pelvic-radiation-for-cervical-cancer
#16
Mahantshetty Umesh, Deepak P Kumar, Pranav Chadha, Rajiv Choudary, Seema Kembhavi, Meenakshi Thakur, Engineer Reena, Supriya Chopra, Shyamkishore Shrivastava
PURPOSE: Advanced radiotherapy techniques have emphasized on the importance of accurate target volume localization and delineation. The aim of this study was to determine time taken to achieve moderate bladder volume under physiological conditions, using transabdominal ultrasound. MATERIALS AND METHODS: Patients with cervical cancer undergoing radical radiation with or without concomitant chemotherapy underwent serial ultrasound to estimate bladder filling. With a strict bladder protocol of consuming 1000 mL of water orally over 30 minutes after emptying the bladder, ultrasound was done after 45 minutes from bladder emptying time and repeated at 15-minute interval till 300 (25) mL filling was achieved and repeated every week...
January 1, 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/28532145/mini-photobioreactors-for-in-vivo-real-time-characterization-and-evolutionary-tuning-of-bacterial-optogenetic-circuit
#17
Hsinkai Wang, Ya-Tang Yang
The current standard protocols for characterizing the optogenetic circuit of bacterial cells using flow cytometry in light tubes and light exposure of culture plates are tedious, labor-intensive, and cumbersome. In this work, we engineer a bioreactor with working volume of ~10 mL for in vivo real-time optogenetic characterization of E. coli with a CcaS-CcaR light-sensing system. In the bioreactor, optical density measurements, reporter protein fluorescence detection, and light input stimuli are provided by four light-emitting diode sources and two photodetectors...
May 22, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/28531553/hiv-1-viral-load-measurement-in-venous-blood-and-fingerprick-blood-using-abbott-realtime-hiv-1-dbs-assay
#18
Ning Tang, Vihanga Pahalawatta, Andrea Frank, Zowie Bagley, Raquel Viana, John Lampinen, Gregor Leckie, Shihai Huang, Klara Abravaya, Carole L Wallis
BACKGROUND: HIV RNA suppression is a key indicator for monitoring success of antiretroviral therapy. From a logistical perspective, viral load (VL) testing using Dried Blood Spots (DBS) is a promising alternative to plasma based VL testing in resource-limited settings. OBJECTIVES: To evaluate the analytical and clinical performance of the Abbott RealTime HIV-1 assay using a fully automated one-spot DBS sample protocol. STUDY DESIGN: Limit of detection (LOD), linearity, lower limit of quantitation (LLQ), upper limit of quantitation (ULQ), and precision were determined using serial dilutions of HIV-1 Virology Quality Assurance stock (VQA Rush University), or HIV-1-containing armored RNA, made in venous blood...
May 13, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28531231/utility-of-th1-cell-immune-responses-for-distinguishing-active-tuberculosis-from-non-active-tuberculosis-a-case-control-study
#19
Lifan Zhang, Xinhe Cheng, Sainan Bian, Yanhua Song, Qiang Li, Mengqiu Gao, Yueqiu Zhang, Xiaochun Shi, Xiaoqing Liu
Currently available Interferon-γ release assay (IGRA) cannot reliably differentiate active TB (ATB) from non-active TB (non-ATB). A study was performed to evaluate the value of Mycobacterium tuberculosis (MTB) specific Th1 cell immune responses which test IFN-γ and IL-2 simultaneous for differentiating ATB from non-ATB. Forty-nine newly diagnosed inpatients with ATB (26 pulmonary TB and 23 extrapulmonary TB) were enrolled as the ATB group. Forty-five volunteers with latent tuberculosis infection (LTBI) and twenty with evidence of previous TB were enrolled during the same period as the non-ATB group...
2017: PloS One
https://www.readbyqxmd.com/read/28530904/wiring-variations-that-enable-and-constrain-neural-computation-in-a-sensory-microcircuit
#20
William F Tobin, Rachel I Wilson, Wei-Chung Allen Lee
Neural network function can be shaped by varying the strength of synaptic connections. One way to achieve this is to vary connection structure. To investigate how structural variation among synaptic connections might affect neural computation, we examined primary afferent connections in the Drosophila olfactory system. We used large-scale serial section electron microscopy to reconstruct all the olfactory receptor neuron (ORN) axons that target a left-right pair of glomeruli, as well as all the projection neurons (PNs) postsynaptic to these ORNs...
May 22, 2017: ELife
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