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https://www.readbyqxmd.com/read/29776413/the-cxcr4-antagonist-plerixafor-amd3100-promotes-proliferation-of-ewing-sarcoma-cell-lines-in-vitro-and-activates-receptor-tyrosine-kinase-signaling
#1
Philipp Berning, Christiane Schaefer, Dagmar Clemens, Eberhard Korsching, Uta Dirksen, Jenny Potratz
BACKGROUND: The CXCR4 receptor antagonist plerixafor (AMD3100) is raising interest as an anti-cancer agent that disrupts the CXCL12-CXCR4 chemokine - receptor interaction between neoplastic cells and their microenvironment in tumor progression and metastasis. Here, we investigated plerixafor for anti-cancer activity in Ewing sarcoma, a rare and aggressive cancer of bone and soft tissues. METHODS: We used a variety of methods such as cell viability and migration assays, flow cytometry, phospho-tyrosine arrays and western blotting to determine plerixafor effects on five characterized Ewing sarcoma cell lines and a low-passage culture in vitro...
May 18, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/29775297/factor-xia-inhibitors-as-new-anticoagulants
#2
Mimi L Quan, Donald J P Pinto, Joanne M Smallheer, William R Ewing, Karen A Rossi, Joseph M Luettgen, Dietmar A Seiffert, Ruth R Wexler
With the introduction of thrombin and factor Xa inhibitors to the oral anticoagulant market, significant improvements in both efficacy and safety have been achieved. Early clinical and preclinical data suggest that inhibitors of factor XIa can provide a still safer alternative, with expanded efficacy for arterial indications. This Perspective provides an overview of target rationale and details of the discovery and development of inhibitors of factor XIa as next generation antithrombotic agents.
May 18, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29773510/implications-of-the-abcd-study-for-developmental-neuroscience
#3
Sarah W Feldstein Ewing, James M Bjork, Monica Luciana
The Adolescent Brain Cognitive Development Study (ABCD) will capture a breadth of multi-faceted biobehavioral, environmental, familial, and genetic longitudinal developmental open-access data from over 11,000 9-10 year olds throughout the United States of America (USA) for an envisioned ten-year span. This will subsequently represent the largest study ever attempted with this level of brain phenotypic detail. This study holds the opportunity for exciting advances in the understanding of typical adolescent neurodevelopment, discovery of neurodevelopmental underpinnings of mental illness, as well as the neurodevelopmental influences of (and on) social factors, substance use, and critically - their interaction...
May 14, 2018: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/29773243/impact-of-diabetes-and-increasing-body-mass-index-category-on-left-ventricular-systolic-and-diastolic-function
#4
Arnold C T Ng, Francesca Prevedello, Giulia Dolci, Cornelis J Roos, Roxana Djaberi, Matteo Bertini, See Hooi Ewe, Christine Allman, Dominic Y Leung, Nina Ajmone Marsan, Victoria Delgado, Jeroen J Bax
BACKGROUND: Diabetes and obesity are both worldwide growing epidemics, and both are independently associated with increased risk for heart failure and death. The aim of this study was to examine the additive detrimental effect of both diabetes and increasing body mass index (BMI) category on left ventricular (LV) myocardial systolic and diastolic function. METHODS: The present retrospective multicenter study included 653 patients (337 with type 2 diabetes and 316 without diabetes) of increasing BMI category...
May 15, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29772265/administration-of-low-dose-triclosan-to-pregnant-ewes-results-in-placental-uptake-and-reduced-estradiol-sulfotransferase-activity-in-fetal-liver-and-placenta
#5
Erin N Jackson, Laura Rowland-Faux, Margaret O James, Charles E Wood
Sulfonation is a major pathway of estrogen biotransformation with a role in regulating estrogen homeostasis in humans and sheep. Previous in vitro studies found that triclosan is an especially potent competitive inhibitor of ovine placental estrogen sulfotransferase, with Kic of <0.1 nM. As the placenta is the main organ responsible for estrogen synthesis in pregnancy in both women and sheep, and the liver is another site of estrogen biotransformation, this study examined the effects of triclosan exposure of pregnant ewes on placental and hepatic sulfotransferase activity...
May 14, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29772054/oxycodone-pharmacokinetics-and-fetal-exposure-after-intravenous-or-epidural-administration-to-the-ewe
#6
Mari Kinnunen, Hannu Kokki, Heidi Hautajärvi, Heikki Huhta, Veli-Pekka Ranta, Juha Räsänen, Hanna-Marja Voipio, Merja Kokki
INTRODUCTION: There are limited data of oxycodone pharmacokinetics during pregnancy and on fetal exposure after maternal administration. The present study describes the pharmacokinetics of intravenous oxycodone in pregnant sheep and fetal exposure after intravenous and epidural administration. MATERIAL AND METHODS: 10 pregnant sheep received 0.1 mg·kg-1 oxycodone intravenously -bolus, and blood samples were collected up to 24 hours. Seven days later, the ewes were randomized to receive 0...
May 17, 2018: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29767781/adolescent-condom-use-and-connectivity-in-the-social-planful-brain
#7
Justin D Caouette, Karen A Hudson, Angela D Bryan, Sarah W Feldstein Ewing
Objective: To reduce rates of sexually transmitted infections (STIs) and unwanted pregnancy among adolescents, it is critical to investigate brain connectivity that may underlie adolescents' sexual health decision-making in the context of intercourse. This study explored relationships between adolescent condom use frequency and the brain's resting-state functional connectivity, to identify differential patterns of social-affective processing among sexually active youth. Methods: In this study, N = 143 sexually active adolescents (68...
May 14, 2018: Journal of Pediatric Psychology
https://www.readbyqxmd.com/read/29767143/okara-as-a-protein-supplement-affects-feed-intake-and-milk-composition-of-ewes-and-growth-performance-of-lambs
#8
Laura B Harthan, Debbie J R Cherney
Evaluating the feeding value of wet okara as a protein supplement for lactating ewes with twin lambs was the objective. A 4 × 4 Latin square replicated 2× (4 sheep, 4 treatments, 4 periods per square; 2 squares) was conducted to examine the influence of concentrate mix (okara or not) and type of forage (silage or hay) on ewe milk composition and growth of their lactating lambs. Treatment periods were 14 days (7 days adaptation and 7 days collection). Ewes (55 to 74.8 kg BW) were fed 1 of 4 diets: wheat middling and corn concentrate with mixed grass hay (TSH), okara and corn with mixed grass hay (OSH), soybean and wheat middlings with hay crop silage (TSS), and okara and corn with hay crop silage (OSS)...
June 2017: Animal nutrition
https://www.readbyqxmd.com/read/29764739/maternal-obesity-alters-the-expression-of-embryonic-regulatory-transcripts-in-the-preimplantation-ovine-conceptus
#9
Sarah R McCoski, Rebecca K Poole, McCauley T Vailes, Alan D Ealy
The influence of exposure to overfeeding-induced maternal obesity around the time of conception on early embryogenesis was examined in the day 14 ovine conceptus. The relative abundance of FGFR2 and DNMT1 was influenced by maternal obesity status and conceptus sex, and the abundance of PPARG and PTGS2 transcripts was greater in male conceptuses regardless of the obesity status of the ewe. These observations demonstrated that short-term exposure to maternal obesity impacts early conceptus transcript patterning...
May 12, 2018: Reproductive Biology
https://www.readbyqxmd.com/read/29764712/the-tail-in-tropical-hair-ewes-ovis-aries-that-are-in-estrus-is-used-as-a-proceptive-signal-and-favors-ram-copulation
#10
Ángel Fierros-García, Rodolfo Ungerfeld, Virginio Aguirre, Agustín Orihuela
Two experiments were performed to determine if the tail has a role: 1) in proceptive behavior, and 2) in facilitating copulation in hair sheep. The movements and position of the tail of estrous and non-estrous ewes in response to male courtship were compared in the first study. In the second study, the courtship of rams and mating behavior directed towards tailed or tail-docked, in estrus or diestrus ewes, were compared. Both experiments were conducted with restrained ewes during 3 min assessment periods...
May 12, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/29761244/copper-tolfenamic-acid-evaluation-of-stability-and-anti-cancer-activity
#11
Myrna Hurtado, Umesh T Sankpal, Jaya Chhabra, Deondra T Brown, Rajasekhar Maram, Rafid Patel, Raj K Gurung, Jerry Simecka, Alvin A Holder, Riyaz Basha
The non-steroidal anti-inflammatory drug, Tolfenamic acid (TA) acts as an anti-cancer agent in several adult and pediatric cancer models. Copper (Cu) is an important element with multiple biological functions and has gained interest in medical applications. Recently, [Cu(TA)2 (bpy)] (Cu-TA) has been synthesized in order to enhance therapeutic activity. In this study, we synthesized Cu-TA using an established method, characterized it by UV visible spectroscopy and Fourier-transform infrared spectroscopy (FTIR), and tested its anti-cancer activity using twelve cell lines representing various cancers, such as Ewing sarcoma, glioblastoma, medulloblastoma, neuroblastoma, pancreatic and prostate...
May 15, 2018: Investigational New Drugs
https://www.readbyqxmd.com/read/29759381/genomic-evidence-that-the-live-chlamydia-abortus-vaccine-strain-1b-is-not-attenuated-and-has-the-potential-to-cause-disease
#12
David Longbottom, Michelle Sait, Morag Livingstone, Karine Laroucau, Konrad Sachse, Simon R Harris, Nicholas R Thomson, Helena M B Seth-Smith
BACKGROUND: The live, temperature-attenuated vaccine strain 1B of Chlamydia abortus, the aetiological agent of ovine enzootic abortion (OEA), has been implicated in cases of vaccine breakdown. The aim of this study was to understand the nature of this attenuation through sequencing of the vaccine parent strain (AB7) and the derived mutant strains 1B and 1H, as well as to clarify the role of the vaccine strain in causing disease through comparative whole genome analysis. METHODS: Whole genome sequencing was performed on: vaccine parent strain AB7; N-methyl-N'-nitro-N-nitrosoguanidine (NTG)-induced temperature attenuated mutant strain 1B grown from the commercial live vaccines Cevac Chlamydia and Enzovax; strain 1H a reverted NTG mutant; and 5 strains isolated from cases of OEA originating from animals from the original vaccine safety trial (2 strains) or from vaccinated ewes or ewes exposed to vaccinated animals (3 strains)...
May 11, 2018: Vaccine
https://www.readbyqxmd.com/read/29758532/evaluation-of-the-nova-vet-meter-for-sheep-side-monitoring-of-%C3%AE-hydroxybutyric-acid-bhba-and-description-of-ewe-bhba-during-late-gestation-in-three-flocks-from-the-northeastern-u-s
#13
Amanda K Jones, Rachael E Gately, Tasia D Kellogg, Steven A Zinn, Kristen E Govoni, Sarah A Reed
Prevention of metabolic diseases in small ruminants may improve production efficiency and profitability, yet ewes carrying multiples or who are in poor body condition are at increased susceptibility to develop ketosis. This study evaluated the hand-held Nova Vet Meter to accurately detect β-hydroxybutyric acid (BHBA) concentrations in ewes and determined the percentage of ewes at moderate (0.8 to 1.5 mmol/L BHBA) and greatest (≥1.6 mmol/L BHBA) risk to develop ketosis during late gestation. To validate the Nova Vet Meter, BHBA concentrations of 104 paired blood samples were measured using the Nova Vet Meter and gold-standard laboratory analysis...
May 7, 2018: Research in Veterinary Science
https://www.readbyqxmd.com/read/29758177/the-efficacy-of-antenatal-steroid-therapy-is-dependent-on-the-duration-of-low-concentration-fetal-exposure-evidence-from-a-sheep-model-of-pregnancy
#14
Matthew W Kemp, Masatoshi Saito, Haruo Usuda, Shimpei Watanabe, Shinichi Sato, Takushi Hanita, Yusaku Kumagai, Timothy J Molloy, Michael Clarke, Peter J Eddershaw, Gabrielle C Musk, Augusto Schmidt, Demelza Ireland, Lucy Furfaro, Matthew S Payne, John P Newnham, Alan H Jobe
OBJECTIVE: Antenatal corticosteroids (ANS) are among the most important and widely used interventions to improve outcomes for preterm infants. ANS dosing regimens remain un-optimized and without maternal weight-adjusted dosing. We, and others, have hypothesised that once a low concentration of materno-fetal steroid exposure is achieved and maintained, the duration of the steroid exposure determines treatment efficacy. Using a sheep model of pregnancy, we tested the relationship between steroid dose, and duration of exposure, and treatment efficacy...
May 9, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29756246/ewing-sarcoma-of-the-head-and-neck-the-mayo-clinic-experience
#15
Michael D Olson, Kathryn M Van Abel, Rebecca N Wehrs, Joaquin J Garcia, Eric J Moore
BACKGROUND: Treatment options of Ewing sarcoma of the head and neck include surgery, radiotherapy (RT), and chemoradiotherapy. However, local control can be challenging. METHODS: We conducted a retrospective review of all patients with head and neck Ewing sarcoma treated from 1972 to 2015 at a single tertiary care hospital. RESULTS: Seventeen patients met criteria (median 21 years, range 5-58 years; 5 women). Mean follow-up was 10.4 years (range 2...
May 13, 2018: Head & Neck
https://www.readbyqxmd.com/read/29755686/transcriptome-based-individualized-therapy-of-refractory-pediatric-sarcomas-feasibility-tolerability-and-efficacy
#16
Bushra Weidenbusch, Günther H S Richter, Marie Sophie Kesper, Monika Guggemoos, Katja Gall, Carolin Prexler, Ilya Kazantsev, Alexandra Sipol, Lars Lindner, Michaela Nathrath, Olaf Witt, Katja Specht, Frigga Beitinger, Carolin Knebel, Stuart Hosie, Rüdiger von Eisenhardt-Rothe, Wilko Weichert, Irene Teichert-von Luettichau, Stefan Burdach
Survival rates of pediatric sarcoma patients stagnated during the last two decades, especially in adolescents and young adults (AYAs). Targeted therapies offer new options in refractory cases. Gene expression profiling provides a robust method to characterize the transcriptome of each patient's tumor and guide the choice of therapy. Twenty patients with refractory pediatric sarcomas (age 8-35 years) were assessed with array profiling: ten had Ewing sarcoma, five osteosarcoma, and five soft tissue sarcoma. Overexpressed genes and deregulated pathways were identified as actionable targets and an individualized combination of targeted therapies was recommended...
April 17, 2018: Oncotarget
https://www.readbyqxmd.com/read/29754696/follicle-stimulating-hormone-receptor-protein-is-expressed-in-ovine-uterus-during-the-estrous-cycle-and-utero-placenta-during-early-pregnancy-an-immunohistochemical-study
#17
Anna T Grazul-Bilska, Arshi Reyaz, Veselina Valkov, Sheri T Dorsam, Dale A Redmer
Follicle stimulating hormone (FSH) is a well characterized gonadotropin that controls primarily development and functions of ovarian follicles in mammalian species. FSH binds to a specific G protein-coupled receptor (FSHR) belonging to the glycoprotein hormone receptor family that plays an essential role in reproduction. Although the primary location of FSHR is in the gonads (mainly in ovarian follicles), FSHR protein and/or mRNA have also been detected in extragonadal female reproductive tissues including embryo, placenta, endometrium, cervix, ovarian cancer tissues, and/or endometriotic lesions in several species...
May 11, 2018: Acta Histochemica
https://www.readbyqxmd.com/read/29752484/surveillance-mri-for-the-detection-of-locally-recurrent-ewing-sarcoma-seems-futile
#18
Ömer Kasalak, Amelie Dammann, Hugo J A Adams, Jelle Overbosch, Rudi A J O Dierckx, Paul C Jutte, Thomas C Kwee
PURPOSE: To determine the frequency of locally recurrent Ewing sarcoma on surveillance MRI and the outcome of these patients. MATERIALS AND METHODS: This retrospective single-center study included all patients with newly diagnosed Ewing sarcoma who underwent surveillance MRI of the primary tumor location after primary treatment between 1997 and 2016. RESULTS: Thirty-two patients underwent a total of 176 local surveillance MRI scans, yielding an average of 5...
May 11, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29750397/fdg-pet-ct-in-the-evaluation-of-primary-and-secondary-pancreatic-malignancies
#19
Casey E Bohl, Sara M Federico, Giles W Robinson, Armita Bahrami, Barry L Shulkin
PURPOSE: Primary pancreatic carcinoma and pancreatic metastases are rare in the pediatric population. Pancreatoblastoma is the most common pancreatic malignant tumor in young children and solid-pseudopapillary tumor in teenagers. Pancreatic adenocarcinoma is extremely rare under the age of 40 and is usually associated with underlying genetic abnormalities. Secondary malignancies of the pancreas occur more frequently than primary pancreatic malignancies in children and are most commonly seen with non-Hodgkin lymphomas (NHL) and mesenchymal sarcomas...
May 11, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29749766/evaluation-of-the-impact-of-varied-carvacrol-concentrations-on-salmonella-recovery-in-oregano-and-how-corn-oil-can-minimize-the-effect-of-carvacrol-during-preenrichment
#20
Junia Jean-Gilles Beaubrun, Nicole Addy, Zachary Keltner, Samantha Farris, Laura Ewing, Gopal Gopinath, Darcy E Hanes
Phenolic compounds, like carvacrol, in oregano interfere with the detection of foodborne pathogens such as Salmonella enterica. Carvacrol concentration varies based on plant cultivars and growth region. Six oregano cultivars were used to compare the impact of carvacrol concentration on Salmonella and to evaluate the effectiveness of corn oil to help increase Salmonella survival for detection. The results of Agilent 1200 series high-performance liquid chromatography analysis showed that carvacrol concentration in the six oregano cultivars ranged from 64 to 11,200 ppm...
May 11, 2018: Journal of Food Protection
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