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https://www.readbyqxmd.com/read/28934820/-bone-metastases-pathophysiology-diagnostic-testing-and-therapy-part-1
#1
Sebastian Koob, Michael Kehrer, Andreas Strauss, Viktor Janzen, Dieter Christian Wirtz, Jan Schmolders
In Germany and other European countries, cancer is the second most common cause of death after cardiovascular disease. Although 5-year survival rates for several types of cancer have significantly improved over the last 30 years, metastasis to the bone almost always leads to incurable disease. Aside from the rare primary bone tumours, the treatment of bone metastases now accounts for a major part of tumour orthopaedic workload and requires close interdisciplinary coordination between specialists in oncology, radiology and the discipline of the primary tumour entity...
September 21, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28934780/efficacy-of-cannabis-based-medicines-for-pain-management-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#2
J Aviram, G Samuelly-Leichtag
BACKGROUND: The management of chronic pain is a complex challenge worldwide. Cannabis-based medicines (CBMs) have proven to be efficient in reducing chronic pain, although the topic remains highly controversial in this field. OBJECTIVES: This study's aim is to conduct a conclusive review and meta-analysis, which incorporates all randomized controlled trials (RCTs) in order to update clinicians' and researchers' knowledge regarding the efficacy and adverse events (AEs) of CBMs for chronic and postoperative pain treatment...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28934698/visual-artificial-grammar-learning-in-dyslexia-a-meta-analysis
#3
Merel van Witteloostuijn, Paul Boersma, Frank Wijnen, Judith Rispens
BACKGROUND: Literacy impairments in dyslexia have been hypothesized to be (partly) due to an implicit learning deficit. However, studies of implicit visual artificial grammar learning (AGL) have often yielded null results. AIMS: The aim of this study is to weigh the evidence collected thus far by performing a meta-analysis of studies on implicit visual AGL in dyslexia. METHODS AND PROCEDURES: Thirteen studies were selected through a systematic literature search, representing data from 255 participants with dyslexia and 292 control participants (mean age range: 8...
September 18, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28934673/an-analysis-of-chemicals-and-other-constituents-found-in-produced-water-from-hydraulically-fractured-wells-in-california-and-the-challenges-for-wastewater-management
#4
Emily A Chittick, Tanja Srebotnjak
As high-volume hydraulic fracturing (HF) has grown substantially in the United States over the past decade, so has the volume of produced water (PW), i.e., briny water brought to the surface as a byproduct of oil and gas production. According to a recent study (Groundwater Protection Council, 2015), more than 21 billion barrels of PW were generated in 2012. In addition to being high in TDS, PW may contain hydrocarbons, PAH, alkylphenols, naturally occurring radioactive material (NORM), metals, and other organic and inorganic substances...
September 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28934555/cardiovascular-effects-of-methadone-and-concomitant-use-of-diazepam-during-methadone-maintenance-treatment-induction-low-concentration-risk
#5
Vesna Mijatović, Isidora Samojlik, Stojan Petković, Saša Vukmirović, Arsen Uvelin, Aleksandra Dickov
Background The aim is to evaluate the role of diazepam concentrations in development of low-concentration-methadone-associated QTc prolongation in patients with opioid use disorder during methadone maintenance treatment (MMT) induction. Research design and methods Individuals with addiction disorder on MMT were studied before the beginning of MMT and after one and six months of MMT. Serum concentrations of methadone, diazepam, electrolytes and ECG were analyzed. Results Thirty patients were enrolled. The mean methadone concentration at time points was 177±119 ng/ml and 343±182 ng/ml, while the mean diazepam concentration was 561±437 ng/ml and 1045±933 ng/ml...
September 21, 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/28934530/intraindividual-increase-of-homeostatic-sleep-pressure-across-acute-and-chronic-sleep-loss-a-high-density-eeg-study
#6
Angelina Maric, Caroline Lustenberger, Esther Werth, Christian R Baumann, Rositsa Poryazova, Reto Huber
Study Objectives: To compare intraindividually the effects of acute sleep deprivation (ASD) and chronic sleep restriction (CSR) on the homeostatic increase in slow wave activity (SWA) and to relate it to impairments in basic cognitive functioning, that is, vigilance. Methods: The increase in SWA after ASD (40 hours of wakefulness) and after CSR (seven nights with time in bed restricted to 5 hours per night) relative to baseline sleep was assessed in nine healthy, male participants (age = 18-26 years) by high-density electroencephalography...
September 1, 2017: Sleep
https://www.readbyqxmd.com/read/28934486/stn1-pola2-interaction-provides-a-basis-for-primase-pol-%C3%AE-stimulation-by-human-stn1
#7
Swapna Ganduri, Neal F Lue
The CST (CTC1-STN1-TEN1) complex mediates critical functions in maintaining telomere DNA and overcoming genome-wide replication stress. A conserved biochemical function of the CST complex is its primase-Pol α (PP) stimulatory activity. In this report, we demonstrate the ability of purified human STN1 alone to promote PP activity in vitro. We show that this regulation is mediated primarily by the N-terminal OB fold of STN1, but does not require the DNA-binding activity of this domain. Rather, we observed a strong correlation between the PP-stimulatory activity of STN1 variants and their abilities to bind POLA2...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934421/a-zebrafish-model-of-mycobacterium-leprae-granulomatous-infection
#8
Cressida A Madigan, James Cameron, Lalita Ramakrishnan
Understanding the pathogenesis of leprosy granulomas has been hindered by a paucity of tractable experimental animal models. Mycobacterium leprae, which causes leprosy, grows optimally at approximately 30°C, so we sought to model granulomatous disease in the ectothermic zebrafish. We found that noncaseating granulomas develop rapidly and eventually eradicate infection. rag1 mutant zebrafish, which lack lymphocytes, also form noncaseating granulomas with similar kinetics, but these control infection more slowly...
September 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28934344/care-requirements-for-clients-who-present-after-rape-and-clients-who-presented-after-consensual-sex-as-a-minor-at-a-clinic-in-harare-zimbabwe-from-2011-to-2014
#9
Rebecca E Harrison, Linda Pearson, Michael Vere, Prosper Chonzi, Brian Tafadzwa Hove, Sharon Mabaya, Margaret Chigwamba, Juliana Nhamburo, Juliet Gura, An Vandeborne, Sandra Simons, Daphne Lagrou, Eva De Plecker, Rafael Van den Bergh
STUDY GOALS: To describe the differences between clients presenting after rape and clients who have consented to sex as a minor to an SGBV clinic in Harare, Zimbabwe, and how these differences affect their care requirements. BACKGROUND: Adolescents and adults presenting at the specialized Sexual and Gender Based Violence clinic in Harare are offered a standardised package of free medical and psychosocial care. Zimbabwe has an HIV prevalence of 14%, so prevention of HIV infection using PEP for those that present within 72 hours is a key part of the response...
2017: PloS One
https://www.readbyqxmd.com/read/28934288/purification-of-rabbit-serum-histidine-proline-rich-glycoprotein-via-preparative-gel-electrophoresis-and-characterization-of-its-glycosylation-patterns
#10
Anna Katharina Weyrauch, Mario Jakob, Angelika Schierhorn, Ralf Bernd Klösgen, Dariush Hinderberger
Histidine-Proline-rich Glycoprotein (HPRG) is a plasma protein of vertebrates and several marine bivalves. Due to its multidomain structure consisting of several regions HPRG can interact with a variety of ligands, however the exact physiological role has not been discovered yet. Past purification approaches out of plasma or serum often led to co-purification of other proteins so that for a profound understanding of the function it is important to obtain a protein of high purity. Recent purification strategies were based upon metale chelate affinity chromatography followed by anion exchange chromatography or size exclusion chromatography, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28934259/copper-and-zinc-content-in-wild-game-shot-with-lead-or-non-lead-ammunition-implications-for-consumer-health-protection
#11
Daniela Schlichting, Christine Sommerfeld, Christine Müller-Graf, Thomas Selhorst, Matthias Greiner, Antje Gerofke, Ellen Ulbig, Carl Gremse, Markus Spolders, Helmut Schafft, Monika Lahrssen-Wiederholt
The aim of this study was to examine the contamination of game meat with copper and zinc and establish whether the use of alternative (non-lead) ammunition can lead to higher or unsafe levels of copper and zinc in the meat of roe deer, wild boar and red deer. The research project "Safety of game meat obtained through hunting" (LEMISI) was conducted in Germany with the purpose of examining the entry of lead as well as copper and zinc into the meat of hunted game when using either lead or non-lead ammunition...
2017: PloS One
https://www.readbyqxmd.com/read/28934254/deep-reconstruction-model-for-dynamic-pet-images
#12
Jianan Cui, Xin Liu, Yile Wang, Huafeng Liu
Accurate and robust tomographic reconstruction from dynamic positron emission tomography (PET) acquired data is a difficult problem. Conventional methods, such as the maximum likelihood expectation maximization (MLEM) algorithm for reconstructing the activity distribution-based on individual frames, may lead to inaccurate results due to the checkerboard effect and limitation of photon counts. In this paper, we propose a stacked sparse auto-encoder based reconstruction framework for dynamic PET imaging. The dynamic reconstruction problem is formulated in a deep learning representation, where the encoding layers extract the prototype features, such as edges, so that, in the decoding layers, the reconstructed results are obtained through a combination of those features...
2017: PloS One
https://www.readbyqxmd.com/read/28934249/variability-in-objective-and-subjective-measures-affects-baseline-values-in-studies-of-patients-with-copd
#13
Wayne H Anderson, Jae Wook Ha, David J Couper, Wanda K O'Neal, R Graham Barr, Eugene R Bleecker, Elizabeth E Carretta, Christopher B Cooper, Claire M Doerschuk, M Bradley Drummond, MeiLan K Han, Nadia N Hansel, Victor Kim, Eric C Kleerup, Fernando J Martinez, Stephen I Rennard, Donald Tashkin, Prescott G Woodruff, Robert Paine, Jeffrey L Curtis, Richard E Kanner
RATIONALE: Understanding the reliability and repeatability of clinical measurements used in the diagnosis, treatment and monitoring of disease progression is of critical importance across all disciplines of clinical practice and in clinical trials to assess therapeutic efficacy and safety. OBJECTIVES: Our goal is to understand normal variability for assessing true changes in health status and to more accurately utilize this data to differentiate disease characteristics and outcomes...
2017: PloS One
https://www.readbyqxmd.com/read/28934240/microbial-characterization-of-bee-pollen-from-the-vesuvius-area-collected-by-using-three-different-traps
#14
Gianluigi Mauriello, Annachiara De Prisco, Gennaro Di Prisco, Antonietta La Storia, Emilio Caprio
Flower pollen is collected by honeybee foragers, adhered on their rear legs and transported into the hives in the form of pellets. Once in the hives, bee pollen is moisturised with nectar and bee mouth secretions and due to enzymatically modifications it becomes the so-called bee-bread, the protein reservoir of young bees. Bee pollen can be artificially removed from bee legs and collected by using specific systems, the bee pollen traps. Bee pollen is commercialized for human consumption as fresh product and after freezing or drying...
2017: PloS One
https://www.readbyqxmd.com/read/28934167/live-attenuated-influenza-vaccine-contains-substantial-and-unexpected-amounts-of-defective-viral-genomic-rna
#15
Philip S Gould, Andrew J Easton, Nigel J Dimmock
The live attenuated influenza vaccine FluMist(®) was withdrawn in the USA by the Centers for Disease Control and Prevention after its failure to provide adequate protective immunity during 2013-2016. The vaccine uses attenuated core type A and type B viruses, reconfigured each year to express the two major surface antigens of the currently circulating viruses. Here Fluenz™ Tetra, the European version of this vaccine, was examined directly for defective-interfering (DI) viral RNAs. DI RNAs are deleted versions of the infectious virus genome, and have powerful biological properties including attenuation of infection, reduction of infectious virus yield, and stimulation of some immune responses...
September 21, 2017: Viruses
https://www.readbyqxmd.com/read/28934133/understanding-the-mechanism-of-translocation-of-adenylate-cyclase-toxin-across-biological-membranes
#16
REVIEW
Helena Ostolaza, César Martín, David González-Bullón, Kepa B Uribe, Asier Etxaniz
Adenylate cyclase toxin (ACT) is one of the principal virulence factors secreted by the whooping cough causative bacterium Bordetella pertussis, and it has a critical role in colonization of the respiratory tract and establishment of the disease. ACT targets phagocytes via binding to the CD11b/CD18 integrin and delivers its N-terminal adenylate cyclase (AC) domain directly to the cell cytosol, where it catalyzes unregulated conversion of cytosolic ATP into cAMP upon activation by binding to cellular calmodulin...
September 21, 2017: Toxins
https://www.readbyqxmd.com/read/28934099/phase-imaging-and-nanoscale-energy-dissipation-of-supported-graphene-using-amplitude-modulation-atomic-force-microscopy
#17
Borislav Vasic, Aleksandar Matkovic, Rados Gajic
We investigate phase imaging of supported graphene using amplitude modulation atomic force microscopy (AFM), so called, tapping mode. The phase contrast between graphene and neighbouring substrate grows at hard tapping conditions and the contrast is enhanced compared to the topographic one. Therefore, the phase measurements could enable a high contrast imaging of graphene and related two dimensional materials and heterostructures, not achievable with conventional AFM based topographic measurements. Obtained phase maps are then transformed into energy dissipation maps which are important for graphene applications in various mechanical systems...
September 21, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28934051/latino-nursing-leadership-a-leading-following-perspective
#18
Mario R Ortiz
Nurse leaders have many demands that must be attended to in a manner that is focused, so that organizational, professional, and personal visions are moved forward. The focus emerges from the values and beliefs of the nurse leaders. These values and beliefs embrace nursing models and theories that are the foundation from which they lead others.
October 2017: Nursing Science Quarterly
https://www.readbyqxmd.com/read/28934039/social-media-and-teaching-learning-connecting-or-distancing
#19
Nan Russell Yancey
As new ideas and new ways of connecting seemingly surface ever more quickly, faculty face the daunting task of using emerging technology in the teaching-learning endeavor while honoring the presence of teacher with learner. The focus of this column is on using social media as a teaching-learning tool in the shared journey of coming to know, which is so essential for the aspiring nurse. While opportunities for using teaching-learning technologies abound and are ever-changing, faculty are challenged to cocreate a learner-focused journey of coming to know, without allowing the technology to become the focus...
October 2017: Nursing Science Quarterly
https://www.readbyqxmd.com/read/28934008/decorating-and-loading-ghosts-with-allergens-for-allergen-immunotherapy
#20
Songwe Fanuel, Saeideh Tabesh, Huda Fatima Rajani, Sahel Heidari, Esmaeil Sadroddiny, Gholam Ali Kardar
More than 25% of the global population suffers from IgE mediated allergic diseases. Allergen immunotherapy (AIT) is the only available form of treatment that alters the underlying mechanism of IgE-mediated allergic diseases. AIT is aimed at desensitizing allergic individuals by repeatedly administering disease-causing allergens over a long period of time. Despite its proven efficacy in numerous clinical trials, the effectiveness of AIT still suffers some drawbacks due to the quality of allergens used and in particular the unavailability of efficient allergen delivery systems...
September 21, 2017: Human Vaccines & Immunotherapeutics
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