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https://www.readbyqxmd.com/read/28198431/investigation-of-hippocampal-synaptic-transmission-and-plasticity-in-mice-deficient-in-the-actin-binding-protein-drebrin
#1
Claudia G Willmes, Till G A Mack, Julia Ledderose, Dietmar Schmitz, Christian Wozny, Britta J Eickholt
The dynamic regulation of the actin cytoskeleton plays a key role in controlling the structure and function of synapses. It is vital for activity-dependent modulation of synaptic transmission and long-term changes in synaptic morphology associated with memory consolidation. Several regulators of actin dynamics at the synapse have been identified, of which a salient one is the postsynaptic actin stabilising protein Drebrin (DBN). It has been suggested that DBN modulates neurotransmission and changes in dendritic spine morphology associated with synaptic plasticity...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28197148/avian-interferons-and-their-antiviral-effectors
#2
REVIEW
Diwakar Santhakumar, Dennis Rubbenstroth, Luis Martinez-Sobrido, Muhammad Munir
Interferon (IFN) responses, mediated by a myriad of IFN-stimulated genes (ISGs), are the most profound innate immune responses against viruses. Cumulatively, these IFN effectors establish a multilayered antiviral state to safeguard the host against invading viral pathogens. Considerable genetic and functional characterizations of mammalian IFNs and their effectors have been made, and our understanding on the avian IFNs has started to expand. Similar to mammalian counterparts, three types of IFNs have been genetically characterized in most avian species with available annotated genomes...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28196790/screening-for-child-sexual-exploitation-in-online-sexual-health-services-an-exploratory-study-of-expert-views
#3
Victoria Spencer-Hughes, Jonathan Syred, Alison Allison, Gillian Holdsworth, Paula Baraitser
BACKGROUND: Sexual health services routinely screen for child sexual exploitation (CSE). Although sexual health services are increasingly provided online, there has been no research on the translation of the safeguarding function to online services. We studied expert practitioner views on safeguarding in this context. OBJECTIVE: The aim was to document expert practitioner views on safeguarding in the context of an online sexual health service. METHODS: We conducted semistructured interviews with lead professionals purposively sampled from local, regional, or national organizations with a direct influence over CSE protocols, child protection policies, and sexual health services...
February 14, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28193881/strong-signal-increase-in-sted-fluorescence-microscopy-by-imaging-regions-of-subdiffraction-extent
#4
Fabian Göttfert, Tino Pleiner, Jörn Heine, Volker Westphal, Dirk Görlich, Steffen J Sahl, Stefan W Hell
Photobleaching remains a limiting factor in superresolution fluorescence microscopy. This is particularly true for stimulated emission depletion (STED) and reversible saturable/switchable optical fluorescence transitions (RESOLFT) microscopy, where adjacent fluorescent molecules are distinguished by sequentially turning them off (or on) using a pattern of light formed as a doughnut or a standing wave. In sample regions where the pattern intensity reaches or exceeds a certain threshold, the molecules are essentially off (or on), whereas in areas where the intensity is lower, that is, around the intensity minima, the molecules remain in the initial state...
February 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28193235/dynamic-presenilin-1-and-synaptotagmin-1-interaction-modulates-exocytosis-and-amyloid-%C3%AE-production
#5
Katarzyna Marta Zoltowska, Masato Maesako, Iryna Lushnikova, Shuko Takeda, Laura J Keller, Galina Skibo, Bradley T Hyman, Oksana Berezovska
BACKGROUND: Alzheimer's disease (AD)-linked protein, presenilin 1 (PS1), is present at the synapse, and the knock-out of presenilin in mice leads to synaptic dysfunction. On the other hand, synaptic activity was shown to influence PS1-dependent generation of distinct amyloid β (Aβ) species. However, the precise nature of these regulations remains unclear. The current study reveals novel role of PS1 at the synapse, and deciphers how PS1 and synaptic vesicle-associated protein, synaptotagmin 1 (Syt1) modulate each other functions in neurons via direct activity-triggered interaction...
February 13, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/28187330/experimental-effect-of-ozone-upon-the-microbial-flora-of-commercially-produced-dairy-fermented-products
#6
A Alexopoulos, S Plessas, Y Kourkoutas, C Stefanis, S Vavias, C Voidarou, I Mantzourani, E Bezirtzoglou
Ozone was used to control spoilage microorganisms during the manufacturing of dairy products. Ozone stream was applied onto the surface of freshly filled yoghurt cups just before storage for curd development in order to prevent cross contamination from spoilage airborne microorganisms. Accordingly, brine solution was bubbled with ozone for various periods of time and used for ripening of white (feta type) cheese. Both products were subjected to a continuous monitoring of microbial load and also tested for their sensorial properties...
January 27, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28187273/getting-data-sharing-right-to-help-fulfill-the-promise-of-cancer-genomics
#7
Neil Savage
Limited access to the profusion of sequence information derived from cancer patients worldwide stymies basic research and clinical decisions. Efforts are underway to streamline and safeguard data use.
February 9, 2017: Cell
https://www.readbyqxmd.com/read/28187137/controlling-viral-outbreaks-quantitative-strategies
#8
Anna Mummert, Howard Weiss
Preparing for and responding to outbreaks of serious livestock infectious diseases are critical measures to safeguard animal health, public health, and food supply. Almost all of the current control strategies are empirical, and mass culling or "stamping out" is frequently the principal strategy for controlling epidemics. However, there are ethical, ecological, and economic reasons to consider less drastic control strategies. Here we use modeling to quantitatively study the efficacy of different control measures for viral outbreaks, where the infectiousness, transmissibility and death rate of animals commonly depends on their viral load...
2017: PloS One
https://www.readbyqxmd.com/read/28186948/patient-and-physician-attitudes-regarding-risk-and-benefit-in-streamlined-development-programmes-for-antibacterial-drugs-a-qualitative-analysis
#9
Thomas L Holland, Stephen Mikita, Diane Bloom, Jamie Roberts, Jonathan McCall, Deborah Collyar, Jonas Santiago, Rosemary Tiernan, Joseph Toerner
OBJECTIVES: To explore patient, caregiver and physician perceptions and attitudes regarding the balance of benefit and risk in using antibacterial drugs developed through streamlined development processes. DESIGN: Semistructured focus groups and in-depth interviews were conducted to elicit perceptions and attitudes about the use of antibacterial drugs to treat multidrug-resistant infections. Participants were given background information about antibiotic resistance, streamlined drug development programmes and FDA drug approval processes...
November 10, 2016: BMJ Open
https://www.readbyqxmd.com/read/28186195/cenp-a-chromatin-disassembly-in-stressed-and-senescent-murine-cells
#10
Sabrine Hédouin, Giacomo Grillo, Ivana Ivkovic, Guillaume Velasco, Claire Francastel
Centromeres are chromosomal domains essential for genomic stability. We report here the remarkable transcriptional and epigenetic perturbations at murine centromeres in genotoxic stress conditions. A strong and selective transcriptional activation of centromeric repeats is detected within hours. This is followed by disorganization of centromeres with striking delocalization of nucleosomal CENP-A, the key determinant of centromere identity and function, in a mechanism requiring active transcription of centromeric repeats, the DNA Damage Response (DDR) effector ATM and chromatin remodelers/histone chaperones...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28185517/deprivation-of-liberty-collected-guidance-the-law-society-deprivation-of-liberty-collected-guidance-400pp-%C3%A2-29-95-law-society-publishing-9781784460433-1784460435-formula-see-text
#11
(no author information available yet)
Deprivation of liberty (DoL) is a complicated subject that healthcare professionals may find challenging. Understanding and applying safeguards against DoL can be difficult because regulations and guidance are complex and varied.
February 10, 2017: Emergency Nurse: the Journal of the RCN Accident and Emergency Nursing Association
https://www.readbyqxmd.com/read/28182764/phylogenetic-patterns-and-the-adaptive-evolution-of-osmoregulation-in-fiddler-crabs-brachyura-uca
#12
Samuel Coelho Faria, Diogo Borges Provete, Carl Leo Thurman, John Campbell McNamara
Salinity is the primary driver of osmoregulatory evolution in decapods, and may have influenced their diversification into different osmotic niches. In semi-terrestrial crabs, hyper-osmoregulatory ability favors sojourns into burrows and dilute media, and provides a safeguard against hemolymph dilution; hypo-osmoregulatory ability underlies emersion capability and a life more removed from water sources. However, most comparative studies have neglected the roles of the phylogenetic and environmental components of inter-specific physiological variation, hindering evaluation of phylogenetic patterns and the adaptive nature of osmoregulatory evolution...
2017: PloS One
https://www.readbyqxmd.com/read/28180947/safeguarding-human-health-using-in-silico-tools
#13
EDITORIAL
Melissa Van Bossuyt, Els Van Hoeck, Tamara Vanhaecke, Vera Rogiers, Birgit Mertens
No abstract text is available yet for this article.
February 8, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28179735/ismp-medication-error-report-analysis-understanding-human-over-reliance-on-technology-it-s-exelan-not-exelon-crash-cart-drug-mix-up-risk-with-entering-a-test-order
#14
Michael R Cohen, Judy L Smetzer
These medication errors have occurred in health care facilities at least once. They will happen again-perhaps where you work. Through education and alertness of personnel and procedural safeguards, they can be avoided. You should consider publishing accounts of errors in your newsletters and/or presenting them at your inservice training programs. Your assistance is required to continue this feature. The reports described here were received through the Institute for Safe Medication Practices (ISMP) Medication Errors Reporting Program...
January 2017: Hospital Pharmacy
https://www.readbyqxmd.com/read/28179656/inflammation-metaflammation-and-immunometabolic-disorders
#15
Gökhan S Hotamisligil
Proper regulation and management of energy, substrate diversity and quantity, as well as macromolecular synthesis and breakdown processes, are fundamental to cellular and organismal survival and are paramount to health. Cellular and multicellular organization are defended by the immune response, a robust and critical system through which self is distinguished from non-self, pathogenic signals are recognized and eliminated, and tissue homeostasis is safeguarded. Many layers of evolutionarily conserved interactions occur between immune response and metabolism...
February 8, 2017: Nature
https://www.readbyqxmd.com/read/28179154/managing-the-patient-identification-crisis-in-healthcare-and-laboratory-medicine
#16
REVIEW
Giuseppe Lippi, Camilla Mattiuzzi, Chiara Bovo, Emmanuel J Favaloro
Identification errors have emerged as a critical issue in health care, as testified by the ample scientific literature on this argument. Despite available evidence suggesting that the frequency of misidentification in vitro laboratory diagnostic testing may be relatively low compared to that of other laboratory errors (i.e., usually comprised between 0.01 and 0.1% of all specimens received), the potential adverse consequences remain particularly worrying, wherein 10-20% of these errors not only would translate into serious harm for the patient, but may also erode considerable human and economic resources, so that the entire healthcare system should be re-engineered to act proactively and limiting the burden of this important problem...
February 5, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28174266/low-escape-rate-genome-safeguards-with-minimal-molecular-perturbation-of-saccharomyces-cerevisiae
#17
Neta Agmon, Zuojian Tang, Kun Yang, Ben Sutter, Shigehito Ikushima, Yizhi Cai, Katrina Caravelli, James A Martin, Xiaoji Sun, Woo Jin Choi, Allen Zhang, Giovanni Stracquadanio, Haiping Hao, Benjamin P Tu, David Fenyo, Joel S Bader, Jef D Boeke
As the use of synthetic biology both in industry and in academia grows, there is an increasing need to ensure biocontainment. There is growing interest in engineering bacterial- and yeast-based safeguard (SG) strains. First-generation SGs were based on metabolic auxotrophy; however, the risk of cross-feeding and the cost of growth-controlling nutrients led researchers to look for other avenues. Recent strategies include bacteria engineered to be dependent on nonnatural amino acids and yeast SG strains that have both transcriptional- and recombinational-based biocontainment...
February 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28173843/staff-experiences-of-closing-out-a-clinical-trial-involving-withdrawal-of-treatment-qualitative-study
#18
Julia Lawton, David White, David Rankin, Jackie Elliott, Carolin Taylor, Cindy Cooper, Simon Heller, Nina Hallowell
BACKGROUND: The ending of a clinical trial may be challenging, particularly if staff are required to withdraw the investigated treatment(s); however, this aspect of trial work is surprisingly under-researched. To address this gap, we explored the experiences of staff involved in closing out a trial that entailed withdrawal of treatment (insulin pumps) from some patients. METHODS: Interviews were conducted with n = 22 staff, recruited from seven trial sites. Data were analysed thematically...
February 7, 2017: Trials
https://www.readbyqxmd.com/read/28171783/attitudes-regarding-the-national-forensic-dna-database-survey-data-from-the-general-public-prison-inmates-and-prosecutors-offices-in-the-republic-of-serbia
#19
Smilja Teodorović, Dragan Mijović, Una Radovanović Nenadić, Marina Savić
Worldwide, the establishment of national forensic DNA databases has transformed personal identification in the criminal justice system over the past two decades. It has also stimulated much debate centering on ethical issues, human rights, individual privacy, lack of safeguards and other standards. Therefore, a balance between effectiveness and intrusiveness of a national DNA repository is an imperative and needs to be achieved through a suitable legal framework. On its path to the European Union (EU), the Republic of Serbia is required to harmonize its national policies and legislation with the EU...
January 21, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28166748/body-mass-index-modifies-the-relationship-between-%C3%AE-h2ax-a-dna-damage-biomarker-and-pathological-complete-response-in-triple-negative-breast-cancer
#20
Maddalena Barba, Patrizia Vici, Laura Pizzuti, Luigi Di Lauro, Domenico Sergi, Anna Di Benedetto, Cristiana Ercolani, Francesca Sperati, Irene Terrenato, Claudio Botti, Lucia Mentuccia, Laura Iezzi, Teresa Gamucci, Clara Natoli, Ilio Vitale, Marcella Mottolese, Ruggero De Maria, Marcello Maugeri-Saccà
BACKGROUND: Body mass index (BMI) is largely investigated as a prognostic and predictive factor in triple-negative breast cancer (TNBC). Overweight and obesity are linked to a variety of pathways regulating tumor-promoting functions, including the DNA damage response (DDR). The DDR physiologically safeguards genome integrity but, in a neoplastic background, it is aberrantly engaged and protects cancer cells from chemotherapy. We herein verified the role of BMI on a previously assessed association between DDR biomarkers and pathological complete response (pCR) in TNBC patients treated with neoadjuvant chemotherapy (NACT)...
February 6, 2017: BMC Cancer
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