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https://www.readbyqxmd.com/read/28829765/rnai-screen-reveals-synthetic-lethality-between-cyclin-g-associated-kinase-and-fbxw7-by-inducing-aberrant-mitoses
#1
Saoirse O Dolly, Mark D Gurden, Konstantinos Drosopoulos, Paul Clarke, Johann de Bono, Stan Kaye, Paul Workman, Spiros Linardopoulos
BACKGROUND: F-box and WD40 repeat domain-containing 7 (FBXW7) is an E3 ubiquitin ligase involved in the ubiquitination and degradation of multiple oncogenic substrates. The tumour suppressor function is frequently lost in multiple cancers through genetic deletion and mutations in a broad range of tumours. Loss of FBXW7 functionality results in the stabilisation of multiple major oncoproteins, culminating in increased cellular proliferation and pro-survival pathways, cell cycle deregulation, chromosomal instability and altered metabolism...
August 22, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28828045/giant-cell-tumor-of-long-bones-outcomes-of-treatment-corelating-with-histopathological-grade
#2
Gabriel Stan, Horia Orban, Nicolae Gheorghiu
INTRODUCTION: Giant cell tumor (GCT) of bone is a borderline lesion of bones, meaning that in certain conditions it could be transforming in malignant tumor. This article describes the clinical outcome of patients with giant cell tumor of bone and discusses the surgical options for this lesion corelating with histopathological grade. MATERIAL AND METHODS: From 2007 to 2015, 15 patients who met the histological criteria of giant cell tumor of bone were treated at our institution...
December 2016: Mædica
https://www.readbyqxmd.com/read/28822742/strategy-set-shifting-and-response-inhibition-in-adult-rats-exposed-to-an-environmental-polychlorinated-biphenyl-mixture-during-adolescence
#3
Supida Monaikul, Paul Eubig, Stan Floresco, Susan Schantz
Converging evidence from studies with animal models and humans suggests that early developmental exposure to polychlorinated biphenyls (PCBs) leads to deficits in cognitive flexibility and inhibitory control. These processes are mediated to a large extent by the prefrontal cortex, thus we examined the effects of PCB exposure during adolescence-a period of robust prefrontal cortical development-on both processes. Specifically, we used operant set-shifting and differential reinforcement of low rates of responding (DRL) tasks to assess cognitive flexibility and response inhibition, respectively...
August 16, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28809747/oxidation-of-pth-in-vivo-feature-or-effect-of-preanalytical-conditions
#4
Stan R Ursem, Marc G Vervloet, Jacquelien J G Hillebrand, Renate T de Jongh, Annemieke C Heijboer
BACKGROUND: Posttranslational oxidation of parathyroid hormone (PTH) modifies its biological activity. Measurement of non-oxidized PTH (n-oxPTH) could be an improvement in assessing PTH status, as intact PTH may rather reflect oxidative stress. However, it is debated whether oxidation of PTH occurs in vivo, or whether it is mainly an in vitro artifact. The aim of this study was to investigate the influence of different preanalytical conditions on the oxidation of PTH within a wide range of plasma PTH concentrations and oxidation propensity...
August 15, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28805834/profiles-of-free-and-bound-phenolics-extracted-from-citrus-fruits-and-their-roles-in-biological-systems-content-and-antioxidant-anti-diabetic-and-anti-hypertensive-properties
#5
Muhammad H Alu'datt, Taha Rababah, Mohammad N Alhamad, Majdi A Al-Mahasneh, Khalil Ereifej, Ghazi Al-Karaki, Mohammed Al-Duais, Juan E Andrade, Carole C Tranchant, Stan Kubow, Kawther A Ghozlan
This study of selected plants of the Rutaceae family was carried out to investigate their phenolic content, antioxidant activity, and the in vitro inhibitory potential of extracted phenolics towards enzymes relevant for hyperglycemia and hypertension. The phenolic content, antioxidant activity and phenolic extract-mediated inhibitory activities for α-glucosidase and α-amylase were evaluated by spectrophotometry. The content of individual phenolics and the angiotensin I-converting enzyme (ACE) inhibitory activity of the phenolic extracts were evaluated by LC/MS-MS and RP-HPLC methods, respectively...
August 14, 2017: Food & Function
https://www.readbyqxmd.com/read/28805270/histoplasmosis-in-transplant-recipients
#6
REVIEW
Kiran Gajurel, Reshika Dhakal, Stan Deresinski
Histoplasma capsulatum is a dimorphic fungus that most often causes asymptomatic infection in the immunocompetent population. In immunocompromised patients, including solid organ transplant (SOT) and hematopoietic cell transplant (HCT) recipients, however, it is likely to cause severe life-threatening infection. Post-transplant histoplasmosis (PTH) in SOT is uncommon with an incidence of ≤ 1% and is even rarer in HCT patients. The majority of PTH in SOT is diagnosed in the first 2 years following transplantation...
August 14, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28801194/medial-septum-modulates-hippocampal-gamma-activity-and-prepulse-inhibition-in-an-n-methyl-d-aspartate-receptor-antagonist-model-of-schizophrenia
#7
L Stan Leung, Jingyi Ma
We reviewed the participation of the septohippocampal system in an animal model of schizophrenia that was acutely induced by systemic injection of an N-methyl-d-aspartate (NMDA) receptor antagonist such as phencyclidine, MK-801 and ketamine. The NMDA receptor antagonist-induced model of schizophrenia is characterized by behavioral and electrophysiological disruptions, including a decrease in prepulse inhibition of the acoustic startle response (PPI), hyperlocomotion, decrease in gating of hippocampal auditory evoked potentials and robust increase in hippocampal gamma (30-100Hz) oscillations...
August 8, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28797080/physician-perspectives-on-the-management-of-viral-hepatitis-and-hepatocellular-carcinoma-in-myanmar
#8
Yoona A Kim, Sam Trinh, Si Thura, Khin Pyone Kyi, Thomas Lee, Stan Sze, Adam Richards, Andrew Aronsohn, Grace L H Wong, Yasuhito Tanaka, Geoffrey Dusheiko, Mindie H Nguyen
BACKGROUND: In Myanmar, over five million people are infected with hepatitis B virus (HBV) and hepatitis C virus (HCV). Hepatitis has been a recent focus with the development of a National Strategic Plan on Hepatitis and plans to subsidize HCV treatment. METHODS: During a two-day national liver disease symposium covering HCV, HBV, hepatocellular (HCC), and end-stage liver disease (ESLD), physician surveys were administered using the automated response system (ARS) to assess physician knowledge, perceptions of barriers to screening and treatment, and proposed solutions...
2017: PloS One
https://www.readbyqxmd.com/read/28795440/single-site-neural-tube-closure-in-human-embryos-revisited
#9
Bernadette S de Bakker, Stan Driessen, Bastiaan Jd Boukens, Maurice Jh van den Hoff, Roelof-Jan Oostra
Introduction Since the multi-site closure theory was first proposed in 1991 as explanation for the preferential localizations of neural tube defects, the closure of the neural tube has been debated. Although the multi-site closure theory is much cited in clinical literature, single-site closure is most apparent in literature concerning embryology. Inspired by Victor Hamburgers (1900-2001) statement that "our real teacher has been and still is the embryo, who is, incidentally, the only teacher who is always right", we decided to critically review both theories of neural tube closure...
August 10, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28782655/on-the-role-of-igg4-in-inflammatory-conditions-lessons-for-igg4-related-disease
#10
REVIEW
David C Trampert, Lowiek M Hubers, Stan F J van de Graaf, Ulrich Beuers
The pathophysiology of immunoglobulin G4-related disease (IgG4-RD) and its most common manifestations, IgG4-associated (sclerosing) cholangitis and autoimmune pancreatitis, remains largely unknown, but IgG4 is presumably involved. IgG4 is a promiscuous antibody, which could be directly pathogenic, fulfill a protective role, or could just be a fortuitous marker of an aberrant inflammatory response. IgG4 antibodies possess exclusive structural and functional characteristics suggesting anti-inflammatory and tolerance-inducing effects...
August 3, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28778036/healthy-urban-living-residential-environment-and-health-of-older-adults-in-shanghai
#11
Yafei Liu, Martin Dijst, Jan Faber, Stan Geertman, Can Cui
A healthy residential environment, especially for older adults, has emerged as an important issue on political and planning agenda in China. This paper aims to investigate the direct and indirect impact of residential environment on the health of older adults in Shanghai, taking into account health-related behaviours, subjective well-being and socio-demographic factors in one comprehensive conceptual model. Our results show that the residential environment is associated with older adults' health directly, and also indirectly through a series of significant behavioural (physical and social activities) and perceptual (subjective well-being) factors...
August 1, 2017: Health & Place
https://www.readbyqxmd.com/read/28773913/photocatalytic-antimicrobial-and-biocompatibility-features-of-cotton-knit-coated-with-fe-n-doped-titanium-dioxide-nanoparticles
#12
Miruna Silvia Stan, Ionela Cristina Nica, Anca Dinischiotu, Elena Varzaru, Ovidiu George Iordache, Iuliana Dumitrescu, Marcela Popa, Mariana Carmen Chifiriuc, Gratiela G Pircalabioru, Veronica Lazar, Eugenia Bezirtzoglou, Marcel Feder, Lucian Diamandescu
Our research was focused on the evaluation of the photocatalytic and antimicrobial properties, as well as biocompatibility of cotton fabrics coated with fresh and reused dispersions of nanoscaled TiO₂-1% Fe-N particles prepared by the hydrothermal method and post-annealed at 400 °C. The powders were characterized by X-ray diffraction (XRD), Mössbauer spectroscopy and X-ray photoelectron spectroscopy. The textiles coated with doped TiO₂ were characterized by scanning electron microscopy and energy dispersive X-ray analyses, and their photocatalytic effect by trichromatic coordinates of the materials stained with methylene blue and coffee and exposed to UV, visible and solar light...
September 21, 2016: Materials
https://www.readbyqxmd.com/read/28765476/annexin-a11-is-targeted-by-igg4-and-igg1-autoantibodies-in-igg4-related-disease
#13
Lowiek M Hubers, Harmjan Vos, Alex R Schuurman, Robin Erken, Ronald P Oude Elferink, Boudewijn Burgering, Stan F J van de Graaf, Ulrich Beuers
OBJECTIVE: Immunoglobulin G4-related disease (IgG4-RD) is a multiorgan immune-mediated disease that predominantly affects the biliary tract (IgG4-associated cholangitis, IAC) and pancreas (autoimmune pancreatitis, AIP). We recently identified highly expanded IgG4+ B-cell receptor clones in blood and affected tissues of patients with IAC/AIP suggestive of specific (auto)antigenic stimuli involved in initiating and/or maintaining the inflammatory response. This study aimed to identify (auto)antigen(s) that are responsible for the clonal expansion of IgG4+ B cells in IgG4-RD...
August 1, 2017: Gut
https://www.readbyqxmd.com/read/28758008/bilateral-extramedullary-adrenal-plasmacytoma-case-report-and-review-of-the-literature
#14
REVIEW
Philip J Townend, Gabriel Kraus, Luke Coyle, David Nevell, Anton Engelsman, Stan B Sidhu
Extramedullary plasmacytoma (EMP) accounts for only 3% of plasma cell malignancies; others include multiple myeloma, plasma cell leukemia and solitary plasmacytoma of bone. The majority of EMPs are found in the upper respiratory tract. Other sites include the GI tract, bladder, CNS, thyroid, breast, testes, parotid gland, lymph nodes and skin. There are eight cases in the literature of adrenal plasmacytoma, however, only two were bilateral. We describe our recent experience of bilateral adrenal plasmacytoma and review of the literature...
May 2017: International Journal of Endocrine Oncology
https://www.readbyqxmd.com/read/28756462/effects-of-gaba-b-receptor-positive-modulator-on-ketamine-induced-psychosis-relevant-behaviors-and-hippocampal-electrical-activity-in-freely-moving-rats
#15
Jingyi Ma, L Stan Leung
RATIONALE: Decreased GABAB receptor function is proposed to mediate some symptoms of schizophrenia. OBJECTIVES: In this study, we tested the effect of CGP7930, a GABAB receptor positive allosteric modulator, on ketamine-induced psychosis-relevant behaviors and hippocampal electrical activity in behaving rats. METHODS: Electrodes were bilaterally implanted into the hippocampus, and cannulae were placed into the lateral ventricles of Long-Evans rats...
July 29, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28739080/tools-for-enhancement-and-quality-improvement-of-peer-assessment-and-clinical-care-in-endocrinology-and-metabolism
#16
REVIEW
Aliya Khan, Anne Kenshole, Shereen Ezzat, Jeannette Goguen, Karen Gomez-Hernandez, Rob Hegele, Robyn Houlden, Tisha Joy, Erin Keely, Donald Killinger, André Lacroix, Sheila Laredo, Ally P H Prebtani, M Z Shrayyef, Chris Tran, Stan Van Uum, Rhoda Reardon, Antiope Papageorgiou, William Tays, Merrill Edmonds
Members of the College of Physicians and Surgeons of Ontario Endocrinology and Metabolism Peer Review Network have been involved in a quality improvement project to help standardize the peer assessment of physicians practicing in endocrinology and metabolism. This has included developing state-of-the-art summaries of common endocrine problems by Canadian experts in endocrinology and metabolism. These tools have been developed in response to the educational needs, as identified by peer reviewers, of practicing endocrinologists in Ontario...
July 21, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28720442/impact-of-baseline-covariates-on-the-immunogenicity-of-the-9-valent-hpv-vaccine-a-combined-analysis-of-five-phase-iii-clinical-trials
#17
Lone K Petersen, Jaime Restrepo, Edson D Moreira, Ole-Erik Iversen, Punnee Pitisuttithum, Pierre Van Damme, Elmar A Joura, Sven-Erik Olsson, Daron Ferris, Stan Block, Anna R Giuliano, Xavier Bosch, Sophie Pils, Jack Cuzick, Suzanne M Garland, Warner Huh, Susanne K Kjaer, Oliver M Bautista, Donna Hyatt, Roger Maansson, Erin Moeller, Hong Qi, Christine Roberts, Alain Luxembourg
BACKGROUND: The immunogenicity profile of the 9-valent HPV (9vHPV) vaccine was evaluated across five phase III clinical studies conducted in girls and boys 9-15 years of age and young women 16-26 years of age. The effect of baseline characteristics of subjects on vaccine-induced HPV antibody responses was assessed. METHODS: Immunogenicity data from 11,304 subjects who received ≥1 dose of 9vHPV vaccine in five Phase III studies were analyzed. Vaccine was administered as a 3-dose regimen...
June 2017: Papillomavirus Research
https://www.readbyqxmd.com/read/28720152/using-couples-discordant-reports-to-estimate-female-covert-use-of-modern-contraception-in-sub-saharan-africa
#18
Natalie C Gasca, Stan Becker
Substantial numbers of married women use contraceptives without their partner's knowledge in sub-Saharan Africa, but studies of female covert use across time are rare. This study investigates the levels, trends and correlates of covert use in nine countries and determines which contraceptive methods are more frequently used covertly by women. Data from monogamous couples in Demographic and Health Surveys were used from nine sub-Saharan African countries that had experienced an increase of 10 percentage points in current modern contraceptive use between an earlier (1991-2004) and later (2007-2011) survey...
July 19, 2017: Journal of Biosocial Science
https://www.readbyqxmd.com/read/28716060/nonlinear-joint-models-for-individual-dynamic-prediction-of-risk-of-death-using-hamiltonian-monte-carlo-application-to-metastatic-prostate-cancer
#19
Solène Desmée, France Mentré, Christine Veyrat-Follet, Bernard Sébastien, Jérémie Guedj
BACKGROUND: Joint models of longitudinal and time-to-event data are increasingly used to perform individual dynamic prediction of a risk of event. However the difficulty to perform inference in nonlinear models and to calculate the distribution of individual parameters has long limited this approach to linear mixed-effect models for the longitudinal part. Here we use a Bayesian algorithm and a nonlinear joint model to calculate individual dynamic predictions. We apply this approach to predict the risk of death in metastatic castration-resistant prostate cancer (mCRPC) patients with frequent Prostate-Specific Antigen (PSA) measurements...
July 17, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28708236/psychosocial-interventions-for-fatigue-during-cancer-treatment-with-palliative-intent
#20
REVIEW
Hanneke Poort, Marlies Peters, Gijs Bleijenberg, Marieke Fm Gielissen, Martine Margaretha Goedendorp, Paul Jacobsen, Stans Verhagen, Hans Knoop
BACKGROUND: Fatigue is a prevalent and burdensome symptom for patients with incurable cancer receiving cancer treatment with palliative intent and is associated with reduced quality of life. Psychosocial interventions seem promising for management of fatigue among cancer patients. OBJECTIVES: To assess the effects of psychosocial interventions for fatigue in adult patients with incurable cancer receiving cancer treatment with palliative intent. SEARCH METHODS: We searched the following databases: CENTRAL, MEDLINE, Embase, CINAHL, PsycINFO, and seven clinical trial registries; we also searched the reference lists of articles...
July 14, 2017: Cochrane Database of Systematic Reviews
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