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https://www.readbyqxmd.com/read/28074005/synergistic-regulation-of-serotonin-and-opioid-signaling-contributes-to-pain-insensitivity-in-nav1-7-knockout-mice
#1
Jörg Isensee, Leonhardt Krahé, Katharina Moeller, Vanessa Pereira, Jane E Sexton, Xiaohui Sun, Edward Emery, John N Wood, Tim Hucho
Genetic loss of the voltage-gated sodium channel Nav1.7 (Nav1.7(-/-)) results in lifelong insensitivity to pain in mice and humans. One underlying cause is an increase in the production of endogenous opioids in sensory neurons. We analyzed whether Nav1.7 deficiency altered nociceptive heterotrimeric guanine nucleotide-binding protein-coupled receptor (GPCR) signaling, such as initiated by GPCRs that respond to serotonin (pronociceptive) or opioids (antinociceptive), in sensory neurons. We found that the nociceptive neurons of Nav1...
January 10, 2017: Science Signaling
https://www.readbyqxmd.com/read/28069995/atm-induces-macrod2-nuclear-export-upon-dna-damage
#2
Barbara Golia, Giuliana Katharina Moeller, Gytis Jankevicius, Andreas Schmidt, Anna Hegele, Julia Preißer, Mai Ly Tran, Axel Imhof, Gyula Timinszky
ADP-ribosylation is a dynamic post-translation modification that regulates the early phase of various DNA repair pathways by recruiting repair factors to chromatin. ADP-ribosylation levels are defined by the activities of specific transferases and hydrolases. However, except for the transferase PARP1/ARDT1 little is known about regulation of these enzymes. We found that MacroD2, a mono-ADP-ribosylhydrolase, is exported from the nucleus upon DNA damage, and that this nuclear export is induced by ATM activity...
January 9, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28069469/an-improved-protocol-for-harvesting-bacillus-subtilis-colony-biofilms
#3
Felix Matthias Fuchs, Adam Driks, Peter Setlow, Ralf Moeller
Bacterial biofilms cause severe problems in medicine and industry due to the high resistance to disinfectants and environmental stress of organisms within biofilms. Addressing challenges caused by biofilms requires full understanding of the underlying mechanisms for bacterial resistance and survival in biofilms. However, such work is hampered by a relative lack of systems for biofilm cultivation that are practical and reproducible. To address this problem, we developed a readily applicable method to culture Bacillus subtilis biofilms on a membrane filter...
January 7, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28067831/trichophycin-a-a-cytotoxic-linear-polyketide-isolated-from-a-trichodesmium-thiebautii-bloom
#4
Matthew J Bertin, Paul G Wahome, Paul V Zimba, Haiyin He, Peter D R Moeller
In an effort to isolate and characterize bioactive secondary metabolites from Trichodesmium thiebautii blooms, collected cyanobacteria biomass was subjected to bioassay-guided extraction and fractionation using the human colon cancer cell line HCT-116, resulting in the isolation and subsequent structure characterization of a linear polyketide trichophycin A (1). The planar structure of 1 was completed using 1D and 2D NMR spectroscopy and high-resolution electrospray ionization mass spectrometry (HRESIMS). Trichophycin A was moderately toxic against the murine neuroblastoma cell line Neuro-2A (EC50: 6...
January 6, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28060571/m-ficolin-is-present-in-aspergillus-fumigatus-infected-lung-and-modulates-epithelial-cell-immune-responses-elicited-by-fungal-cell-wall-polysaccharides
#5
Kasper Jensen, Kit P Lund, Kimmie B Christensen, Anne T Holm, Lalit Kumar Dubey, Jesper B Moeller, Christine S Jepsen, Anders Schlosser, László Galgóczy, Steffen Thiel, Uffe Holmskov, Grith L Sorensen
Aspergillus fumigatus (A. fumigatus) is an opportunistic fungal pathogen that typically infects the lungs of immunocompromised patients. Ficolins are secreted pattern recognition molecules of the innate immune system. In the present study, we investigated the unknown role of human M-ficolin in the recognition of, and response to fungal cell wall polysaccharides. M-ficolin was localized to infiltrating granulocytes and monocytes found in the A. fumigatus infected lung. Recombinant M-ficolin (rM-ficolin) bound specifically to A...
January 6, 2017: Virulence
https://www.readbyqxmd.com/read/28054589/large-scale-thick-self-assembled-nacre-mimetic-brick-walls-as-fire-barrier-coatings-on-textiles
#6
Paramita Das, Helga Thomas, Martin Moeller, Andreas Walther
Highly loaded polymer/clay nanocomposites with layered structures are emerging as robust fire retardant surface coatings. However, time-intensive sequential deposition processes, e.g. layer-by-layer strategies, hinders obtaining large coating thicknesses and complicates an implementation into existing technologies. Here, we demonstrate a single-step, water-borne approach to prepare thick, self-assembling, hybrid fire barrier coatings of sodium carboxymethyl cellulose (CMC)/montmorillonite (MTM) with well-defined, bioinspired brick-wall nanostructure, and showcase their application on textile...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28045838/effect-of-context-and-hearing-loss-on-time-gated-word-recognition-in-children
#7
Dawna Lewis, Judy Kopun, Ryan McCreery, Marc Brennan, Kanae Nishi, Evan Cordrey, Pat Stelmachowicz, Mary Pat Moeller
OBJECTIVES: The purpose of this study was to examine word recognition in children who are hard of hearing (CHH) and children with normal hearing (CNH) in response to time-gated words presented in high- versus low-predictability sentences (HP, LP), where semantic cues were manipulated. Findings inform our understanding of how CHH combine cognitive-linguistic and acoustic-phonetic cues to support spoken word recognition. It was hypothesized that both groups of children would be able to make use of linguistic cues provided by HP sentences to support word recognition...
December 30, 2016: Ear and Hearing
https://www.readbyqxmd.com/read/28029273/mri-based-mismatch-detection-in-acute-ischemic-stroke-optimal-pwi-maps-and-thresholds-validated-with-pet
#8
Olivier Zaro-Weber, Walter Moeller-Hartmann, Dora Siegmund, Alexandra Kandziora, Alexander Schuster, Wolf-Dieter Heiss, Jan Sobesky
Perfusion-weighted (PW) magnetic resonance imaging (MRI) is used to detect penumbral tissue in acute stroke, but the selection of optimal PW-maps and thresholds for tissue at risk detection remains a matter of debate. We validated the performance of PW-maps with 15O-water-positron emission tomography (PET) in a large comparative PET-MR cohort of acute stroke patients. In acute and subacute stroke patients with back-to-back MRI and PET imaging, PW-maps were validated with 15O-water-PET. We pooled two different cerebral blood flow (CBF) PET-maps to define the critical flow (CF) threshold, (i) quantitative (q)CBF-PET with the CF threshold <20 ml/100 g/min and (ii) normalized non-quantitative (nq)CBF-PET with a CF threshold of <70% (corresponding to <20 ml/100 g/min according to a previously published normogram)...
January 1, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28027163/the-business-of-health-physics-jobs-in-a-changing-market
#9
Matthew P Moeller
The health physics profession was born abruptly when once rare and precious radioactive materials became commonplace. The technological advancements that triggered an industrial complex and ended World War II demanded radiation safety on an unprecedented scale. Until then, protective measures against radiation were largely absent in laboratories. Over the subsequent decades, health physicists began protecting people and the environment in a wide range of settings including medical, research, and industrial...
February 2017: Health Physics
https://www.readbyqxmd.com/read/28017673/outcome-after-surgery-for-acute-aortic-dissection-influence-of-preoperative-antiplatelet-therapy-on-prognosis
#10
Raphaelle Avigael Chemtob, Hasse Moeller-Soerensen, Lene Holmvang, Peter Skov Olsen, Hanne Berg Ravn
OBJECTIVES: Outcome in patients with acute coronary syndrome (ACS) is improved with dual antiplatelet therapy (DAPT). Patients with acute aortic dissection type A (AAD) often present with similar symptoms and may therefore be prescribed DAPT before diagnosis. The aim of this study was to evaluate the use of antiplatelet therapy (APT) prior to AAD surgery and patient outcome, including indications according to the European Society of Cardiology's (ESC) recent guidelines. DESIGN: A retrospective, observational study...
October 11, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28004956/overlearned-responses-hinder-s-r-binding
#11
Birte Moeller, Christian Frings
Two mechanisms that are important for human action control are the integration of individual action plans (see Hommel, Müsseler, Aschersleben, & Prinz, 2001) and the automatization of overlearned actions to familiar stimuli (see Logan, 1988). In the present study, we analyzed the influence of automatization on action plan integration. Integration with pronunciation responses were compared for response incompatible word and nonword stimuli. Stimulus-response binding effects were observed for nonwords. In contrast, words that automatically triggered an overlearned pronunciation response were not integrated with pronunciation of a different word...
January 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/27941079/the-international-college-of-neuro-psychopharmacology-cinp-treatment-guidelines-for-bipolar-disorder-in-adults-cinp-bd-2017-part-3-the-clinical-guidelines
#12
REVIEW
Konstantinos N Fountoulakis, Heinz Grunze, Eduard Vieta, Allan Young, Lakshmi Yatham, Pierre Blier, Siegfried Kasper, Hans Jurgen Moeller
BACKGROUND: The current paper introduces the actual CINP clinical guidelines for the treatment of Bipolar disorder (BD). CONCEPT AND STRUCTURE OF THE GUIDELINES: The current clinical guidelines are based on evidence based data, but they also intend to be clinically useful, while a rigid algorithm was developed on the basis of firm evidence alone. Monotherapy was prioritised over combination therapy. There are separate recommendations for each of the major phases of BD expressed as a five-step algorithm...
December 10, 2016: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27936777/peptizing-mechanism-at-the-molecular-level-of-laponite-nanoclay-gels
#13
Philip Kensbock, Dan Eugen Demco, Smriti Singh, Khosrow Rahimi, Radu Fechete, Andreas Walther, Annette Monika Schmidt, Martin Möller
In the presence of additives such as etidronic acid (1-hydroxyethane-1,1-diphosphonic acid, HEDP), a process of peptizing of Laponite clay gels takes place. The peptizing process at the molecular level was directly revealed by (31)P and (1)H high-resolution magic-angle sample spinning (HRMAS) NMR spectroscopy. Two NMR spectral components were detected and assigned to free etidronic acid and bound to the Laponite disk edges. Furthermore, with increase of temperature the ratio of bound-to-free etidronic acid increases...
December 21, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/27935064/intersession-reliability-of-the-interpolated-twitch-technique-applied-during-isometric-concentric-and-eccentric-actions-of-the-human-knee-extensor-muscles
#14
Martin Behrens, Florian Husmann, Martin Gube, Sabine Felser, Matthias Weippert, Sven Bruhn, Volker Zschorlich, Anett Mau-Moeller
INTRODUCTION: Although it has been shown that voluntary activation (%VA) of knee extensors during isometric contractions can be reliably assessed with the interpolated twitch technique, little is known about the reliability of %VA during concentric and eccentric muscle actions. Therefore, relative and absolute intersession reliability of quadriceps muscle %VA during different contraction modes was determined. METHODS: After a familiarization session, 21 participants (17 men, 25 ± 2 years) completed 2 testing sessions...
December 9, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/27933880/paired-electrolysis-in-the-simultaneous-production-of-synthetic-intermediates-and-substrates
#15
Mark J Llorente, Bichlien H Nguyen, Clifford P Kubiak, Kevin D Moeller
In electrochemical processes, an oxidation half-reaction is always paired with a reduction half-reaction. Although systems for reactions such as the reduction of CO2 can be coupled to water oxidation to produce O2 at the anode, large-scale O2 production is of limited value. One may replace a low-value half-reaction with a compatible half-reaction that can produce a valuable chemical compound and operate at a lower potential. In doing so, both the anodic and cathodic half-reactions yield desirable products with a decreased energy demand...
November 23, 2016: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/27927174/a-controlled-trial-of-implementing-a-complex-mental-health-intervention-for-carers-of-vulnerable-young-people-living-in-out-of-home-care-the-ripple-project
#16
Helen Herrman, Cathy Humphreys, Stephen Halperin, Katherine Monson, Carol Harvey, Cathrine Mihalopoulos, Susan Cotton, Penelope Mitchell, Tony Glynn, Anne Magnus, Lenice Murray, Josef Szwarc, Elise Davis, Sophie Havighurst, Patrick McGorry, Sam Tyano, Ida Kaplan, Simon Rice, Kristen Moeller-Saxone
BACKGROUND: Out-of-home care (OoHC) refers to young people removed from their families by the state because of abuse, neglect or other adversities. Many of the young people experience poor mental health and social function before, during and after leaving care. Rigorously evaluated interventions are urgently required. This publication describes the protocol for the Ripple project and notes early findings from a controlled trial demonstrating the feasibility of the work. The Ripple project is implementing and evaluating a complex mental health intervention that aims to strengthen the therapeutic capacities of carers and case managers of young people (12-17 years) in OoHC...
December 7, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27922089/elderly-patients-have-an-altered-gut-brain-axis-regardless-of-the-presence-of-cirrhosis
#17
Jasmohan S Bajaj, Vishwadeep Ahluwalia, Joel L Steinberg, Sarah Hobgood, Peter A Boling, Michael Godschalk, Saima Habib, Melanie B White, Andrew Fagan, Edith A Gavis, Dinesh Ganapathy, Phillip B Hylemon, Karen E Stewart, Raffi Keradman, Eric J Liu, Jessica Wang, Patrick M Gillevet, Masoumeh Sikaroodi, F Gerard Moeller, James B Wade
Cognitive difficulties manifested by the growing elderly population with cirrhosis could be amnestic (memory-related) or non-amnestic (memory-unrelated). The underlying neuro-biological and gut-brain changes are unclear in this population. We aimed to define gut-brain axis alterations in elderly cirrhotics compared to non-cirrhotic individuals based on presence of cirrhosis and on neuropsychological performance. Age-matched outpatients with/without cirrhosis underwent cognitive testing (amnestic/non-amnestic domains), quality of life (HRQOL), multi-modal MRI (fMRI go/no-go task, volumetry and MR spectroscopy), blood (inflammatory cytokines) and stool collection (for microbiota)...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917260/integrative-bayesian-analysis-of-neuroimaging-genetic-data-through-hierarchical-dimension-reduction
#18
S Azadeh, B P Hobbs, L Ma, D A Nielsen, F G Moeller, V Baladandayuthapani
Advances in neuromedicine have emerged from endeavors to elucidate the distinct genetic factors that influence the changes in brain structure that underlie various neurological conditions. We present a framework for examining the extent to which genetic factors impact imaging phenotypes described by voxel-wise measurements organized into collections of functionally relevant regions of interest (ROIs) that span the entire brain. Statistically, the integration of neuroimaging and genetic data is challenging. Because genetic variants are expected to impact different regions of the brain, an appropriate method of inference must simultaneously account for spatial dependence and model uncertainty...
April 2016: Proceedings of the IEEE International Symposium on Biomedical Imaging: from Nano to Macro
https://www.readbyqxmd.com/read/27898938/effects-of-varying-floor-space-on-aggressive-behavior-and-cortisol-concentrations-in-group-housed-sows
#19
P H Hemsworth, R S Morrison, A J Tilbrook, K L Butler, M Rice, S J Moeller
Floor space is an important determinant of aggression and stress in group-housed sows, and the aim of the present experiment was to comprehensively examine the effects of floor space in the range of 1.45 to 2.90 m/sow from mixing until 27 d after insemination on aggression, stress, and reproduction of group-housed sows. A previous experiment on the effects of floor space indicated spatial variability across and along the research facility in both sow aggression and stress. To minimize this spatial variability within the research facility, similar-sized pens but with varying groups sizes (10-20) in 4 separate blocks of 3 contiguous pens within each of 9 time replicates (180 sows/replicate) were used to examine 6 space allowances (1...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27895155/investigations-of-glucocorticoid-action-in-gn
#20
Christoph Kuppe, Claudia van Roeyen, Katja Leuchtle, Nazanin Kabgani, Michael Vogt, Marc Van Zandvoort, Bart Smeets, Jürgen Floege, Hermann-Josef Gröne, Marcus J Moeller
For several decades, glucocorticoids have been used empirically to treat rapid progressive GN. It is commonly assumed that glucocorticoids act primarily by dampening the immune response, but the mechanisms remain incompletely understood. In this study, we inactivated the glucocorticoid receptor (GR) specifically in kidney epithelial cells using Pax8-Cre/GR(fl/fl) mice. Pax8-Cre/GR(fl/fl) mice did not exhibit an overt spontaneous phenotype. In mice treated with nephrotoxic serum to induce crescentic nephritis (rapidly progressive GN), this genetic inactivation of the GR in kidney epithelial cells exerted renal benefits, including inhibition of albuminuria and cellular crescent formation, similar to the renal benefits observed with high-dose prednisolone in control mice...
November 28, 2016: Journal of the American Society of Nephrology: JASN
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