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https://www.readbyqxmd.com/read/27906528/a-new-domain-of-reactivity-for-high-valent-dinuclear-m-%C3%AE-o-2-m-complexes-in-oxidation-reactions
#1
Xenia Engelmann, Shenglai Yao, Erik R Farquhar, Tibor Szilvási, Uwe Kuhlmann, Peter Hildebrandt, Matthias Driess, Kallol Ray
The strikingly different reactivity of a series of homo- and heterodinuclear [(M(III) )(μ-O)2 (M(III) )'](2+) (M=Ni; M'=Fe, Co, Ni and M=M'=Co) complexes with β-diketiminate ligands in electrophilic and nucleophilic oxidation reactions is reported, and can be correlated to the spectroscopic features of the [(M(III) )(μ-O)2 (M(III) )'](2+) core. In particular, the unprecedented nucleophilic reactivity of the symmetric [Ni(III) (μ-O)2 Ni(III) ](2+) complex and the decay of the asymmetric [Ni(III) (μ-O)2 Co(III) ](2+) core through aromatic hydroxylation reactions represent a new domain for high-valent bis(μ-oxido)dimetal reactivity...
December 1, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27906524/the-development-of-autism-spectrum-disorders-variability-and-causal-complexity
#2
REVIEW
Robert H Wozniak, Nina B Leezenbaum, Jessie B Northrup, Kelsey L West, Jana M Iverson
The autism spectrum is highly variable, both behaviorally and neurodevelopmentally. Broadly speaking, four related factors contribute to this variability: (1) genetic processes, (2) environmental events, (3) gene × environment interactions, and (4) developmental factors. Given the complexity of the relevant processes, it appears unlikely that autism spectrum atypicalities can be attributed to any one causal mechanism. Rather, the development of neural atypicality reflects an interaction of genetic and environmental risk factors...
December 1, 2016: Wiley Interdisciplinary Reviews. Cognitive Science
https://www.readbyqxmd.com/read/27906517/the-development-of-motor-behavior
#3
REVIEW
Karen E Adolph, John M Franchak
This article reviews research on the development of motor behavior from a developmental systems perspective. We focus on infancy when basic action systems are acquired. Posture provides a stable base for locomotion, manual actions, and facial actions. Experience facilitates improvements in motor behavior and infants accumulate immense amounts of experience with all of their basic action systems. At every point in development, perception guides motor behavior by providing feedback about the results of just prior movements and information about what to do next...
December 1, 2016: Wiley Interdisciplinary Reviews. Cognitive Science
https://www.readbyqxmd.com/read/27906504/combination-of-two-epitope-identification-techniques-enables-the-rational-design-of-soy-allergen-gly-m-4-mutants
#4
Heide Havenith, Karolin Kern, Paul Rautenberger, Holger Spiegel, Michael Szardenings, Elke Ueberham, Jörg Lehmann, Matthias Buntru, Simon Vogel, Regina Treudler, Rainer Fischer, Stefan Schillberg
BACKGROUND: Detailed IgE-binding epitope analysis is a key requirement for the understanding and development of diagnostic and therapeutic agents to address food allergies. METHODS: We combined an IgE-specific linear peptide microarray with random phage peptide display for the high-resolution mapping of IgE-binding epitopes of the major soybean allergen Gly m 4, which is a homologue to the birch pollen allergen Bet v1. RESULTS: Three epitopes were identified and mapped to a resolution of four key amino acids, allowing the rational design and the production of three Gly m 4 mutants with the aim to abolish or reduce the binding of epitope-specific IgE...
December 1, 2016: Biotechnology Journal
https://www.readbyqxmd.com/read/27906492/taming-metal-fluorine-carbenoids
#5
Sebastian Molitor, Kai-Stephan Feichtner, Viktoria H Gessner
While Li/Cl carbenoids are versatile reagents in organic synthesis, the controlled handling of the extremely reactive and labile M/F carbenoids remains a challenge. We now show that even these compounds can be stabilized and isolated in solid state as well as in solution. Particularly the sodium and potassium com¬pounds exhibit a remarkable stability, thus allowing the first isolation of a room temperature stable fluorine carbenoid. Spectro¬scopic as well as DFT studies confirm the pronounced carbenoid character, showing M-F-C interactions with elongated C-F bonds...
December 1, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27906487/neutrophil-activation-during-acute-human-anaphylaxis-analysis-of-mpo-and-scd62l
#6
Abbie Francis, Erika Bosio, Shelley F Stone, Daniel M Fatovich, Glenn Arendts, Yusuf Nagree, Stephen P J Macdonald, Hugh Mitenko, Mani Rajee, Sally Burrows, Simon G A Brown
BACKGROUND: The mechanisms involved in the amplification of the mast cell response during anaphylaxis are unclear. Mouse models of anaphylaxis demonstrate the critical involvement of neutrophils. These innate immune cells are highly abundant in peripheral blood and can be rapidly activated to trigger both local and systemic inflammation. OBJECTIVE: To investigate neutrophil activation in peripheral blood during acute human anaphylaxis. METHODS: Patients presenting to the Emergency Department with anaphylaxis underwent blood sampling upon enrolment and at up to three subsequent time points...
December 1, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27906482/three-dimensional-super-branched-pdcu-nanoarchitectures-exposed-on-controlled-crystal-facets
#7
Muhammad Iqbal, Cuiling Li, Jung Ho Kim, Saad M Alshehri, Tsuruo Nakayama, Yusuke Yamauchi
Despite the great success of controlled synthesis of metal nanocrystals with various sizes and morphologies, an efficient one-pot approach to preparing well-organized three-dimensional (3D) structures with unique facets exposed remains a great challenge. Herein, we report a unique 3D nanoarchitecture for PdCu alloy, created by a simple chemical reduction method, in which nanosized octahedral PdCu nanocrystals are directly assembled into 3D super-branched structures. Detailed investigations of its electrocatalytic performance demonstrate that the as-prepared facet-controlled PdCu super-branched nanostructures possess higher activity towards the formic acid oxidation reaction in comparison to the commercially available Pd black catalyst...
December 1, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27906474/tuning-the-energy-transfer-efficiency-between-ce-3-and-ln-3-ions-ln-tm-sm-tb-dy-by-controlling-the-crystal-phase-of-nayf4-nanocrystals
#8
Venkata N K B Adusumalli, Heramba V S R M Koppisetti, Sagar Ganguli, Shyam Sarkar, Venkataramanan Mahalingam
NaYF4 is a superior host matrix to study the luminescence properties of lanthanide (Ln(3+) ) ions. Ln(3+) ions in hexagonal-phase NaYF4 (β-phase) nanocrystals (NCs) exhibit strong luminescence via an upconversion process compared to cubic NaYF4 (α-phase) NCs. However, in Ce(3+) /Ln(3+) -doped NaYF4 NCs (Ln=Tm, Tb, Sm, Dy) the α-phase NaYF4 NCs shows strong luminescence compared to their counterpart β-phase NCs despite the latter being much larger in size. This is attributed to comparatively large overlap between Ce(3+) ions emission band with excited energy levels of those Ln(3+) ions in α-phase compared to β-phase NCs...
December 1, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27906472/long-term-clinical-impact-and-cost-effectiveness-of-obeticholic-acid-for-the-treatment-of-primary-biliary-cholangitis
#9
Sumeyye Samur, Matthew Klebanoff, Reiner Banken, Daniel S Pratt, Rick Chapman, Daniel A Ollendorf, Anne M Loos, Kathleen Corey, Chin Hur, Jagpreet Chhatwal
: Primary biliary cholangitis (PBC) is a chronic, progressive autoimmune liver disease that mainly affects middle-aged women. Obeticholic acid (OCA), which was recently approved by the Food and Drug Administration for PBC treatment, has demonstrated positive effects on biochemical markers of liver function. Our objective was to evaluate the long-term clinical impact and cost-effectiveness of OCA as a second-line treatment for PBC in combination with ursodeoxycholic acid (UDCA) in adults with an inadequate response to UDCA...
November 7, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27906471/negotiated-safety-components-context-and-use-an-integrative-literature-review
#10
REVIEW
NataIie M Leblanc, Jason W Mitchell, Joseph P De Santis
AIM: To examine the components and use of negotiated safety in the context of HIV prevention and to identify reported factors associated with the concept. BACKGROUND: There is an emerging interest in dyadic approaches to address HIV transmission. Although there are theoretical foundations for how interpersonal relationships influence individual behaviour, how these dyadic processes influence on health is still not wholly understood. DESIGN: Integrative review of empirical and theoretical literature...
December 1, 2016: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/27906470/retrospective-evaluation-of-whole-body-computed-tomography-for-tumor-staging-in-dogs-with-primary-appendicular-osteosarcoma
#11
Jessica L Talbott, Sarah E Boston, Rowan J Milner, Amandine Lejeune, Carlos H de M Souza, Kelvin Kow, Nicholas J Bacon, Jorge A Hernandez
OBJECTIVE: To evaluate whole body computed tomography (CT) for staging canine appendicular osteosarcoma. STUDY DESIGN: Retrospective case series. ANIMALS: Client-owned dogs diagnosed with appendicular osteosarcoma (n=39). METHODS: Medical records for client-owned dogs diagnosed with appendicular osteosarcoma from August 2008 to July 2014 were reviewed. Dogs were included if they had a confirmed diagnosis of appendicular osteosarcoma and were staged using whole body CT...
December 1, 2016: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/27906466/duodenitis-proximal-jejunitis-in-horses-after-experimental-administration-of-clostridium-difficile-toxins
#12
L G Arroyo, M C Costa, B B Guest, B L Plattner, B N Lillie, J S Weese
BACKGROUND: Duodenitis-proximal jejunitis (DPJ) is an acute sporadic gastrointestinal disorder of horses of unknown cause. HYPOTHESIS/OBJECTIVES: We hypothesize that Clostridium difficile toxins are involved in the pathogenesis of DPJ in horses. The objective of this study was to determine whether experimentally delivered C. difficile toxins cause clinical signs and histologic lesions similar to those of naturally occurring DPJ. ANIMALS: Six healthy mature mixed breed horses...
December 1, 2016: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/27906465/repeated-famotidine-administration-results-in-a-diminished-effect-on-intragastric-ph-in-dogs
#13
M K Tolbert, A Graham, A Odunayo, J Price, J M Steiner, K Newkirk, S Hecht
BACKGROUND: Famotidine is an acid suppressant commonly administered to dogs. Prolonged famotidine use in people results in decreased efficacy, but the effect in dogs is unknown. HYPOTHESIS/OBJECTIVES: To compare the effect of repeated oral administration of famotidine or placebo on intragastric pH and serum gastrin in dogs. We hypothesized that famotidine would have a diminished effect on intragastric pH on day 13 compared to day 1. ANIMALS: Six healthy adult colony Beagles...
December 1, 2016: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/27906463/measurement-of-behavioral-taste-responses-in-mice-two-bottle-preference-lickometer-and-conditioned-taste-aversion-tests
#14
Dany Gaillard, Jennifer M Stratford
The natural like and dislike of foods based on taste is one of the most easily observed behaviors in animals. Animals eat palatable foods and reject aversive foods, which makes measurement of taste perception possible using various behavioral techniques. Three different methods to accurately measure taste behavior are described here. First, two-bottle preference tests evaluate whether a taste compound (tastant) is preferred over water. Second, lickometer tests quantify the like and dislike for multiple concentrations of the same tastant or multiple tastants at the same time...
December 1, 2016: Current Protocols in Mouse Biology
https://www.readbyqxmd.com/read/27906457/comparison-of-survival-times-for-dogs-with-pituitary-dependent-hyperadrenocorticism-in-a-primary-care-hospital-treated-with-trilostane-versus-untreated
#15
N Nagata, K Kojima, M Yuki
BACKGROUND: Although pituitary-dependent hyperadrenocorticism (PDH) is one of the most common endocrinopathies in dogs, the effects of withholding treatment on survival time in dogs with PDH remain unclear. HYPOTHESIS/OBJECTIVES: The purpose of this study was to clarify the effects of treatment in dogs with PDH by comparing survival times between dogs treated with trilostane and untreated dogs. ANIMALS: Forty-three dogs diagnosed with PDH at a primary-care hospital in Japan between June 2009 and January 2014...
December 1, 2016: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/27906456/environmental-risk-factors-for-diabetes-mellitus-in-cats
#16
M Öhlund, A Egenvall, T Fall, H Hansson-Hamlin, H Röcklinsberg, B S Holst
BACKGROUND: Diabetes in cats resembles type 2 diabetes in people. The etiology is not fully understood, but both genetic and environmental factors are believed to contribute. OBJECTIVES: To assess the associations of environmental risk factors with diabetes in cats. ANIMALS: Cats with a diagnosis of diabetes (n = 396) insured by a Swedish insurance company during years 2009-2013, and a control group (n = 1,670) matched on birth year. METHODS: A web-based questionnaire was used in a case-control study...
December 1, 2016: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/27906454/immunotherapy-of-head-and-neck-cancer-emerging-clinical-trials-from-a-national-cancer-institute-head-and-neck-cancer-steering-committee-planning-meeting
#17
Julie E Bauman, Ezra Cohen, Robert L Ferris, David J Adelstein, David M Brizel, John A Ridge, Brian O'Sullivan, Barbara A Burtness, Lisa H Butterfield, William E Carson, Mary L Disis, Bernard A Fox, Thomas F Gajewski, Maura L Gillison, James W Hodge, Quynh-Thu Le, David Raben, Scott E Strome, Jean Lynn, Shakun Malik
Recent advances have permitted successful therapeutic targeting of the immune system in head and neck squamous cell carcinoma (HNSCC). These new immunotherapeutic targets and agents are being rapidly adopted by the oncologic community and hold considerable promise. The National Cancer Institute sponsored a Clinical Trials Planning Meeting to address the issue of how to further investigate the use of immunotherapy in patients with HNSCC. The goals of the meeting were to consider phase 2 or 3 trial designs primarily in 3 different patient populations: those with previously untreated, human papillomavirus-initiated oropharyngeal cancers; those with previously untreated, human papillomavirus-negative HNSCC; and those with recurrent/metastatic HNSCC...
December 1, 2016: Cancer
https://www.readbyqxmd.com/read/27906453/syk-inhibition-blocks-airway-constriction-and-protects-from-th2-induced-airway-inflammation-and-remodeling-in-mice
#18
Christoph Tabeling, Julia Herbert, Andreas C Hocke, David Lamb, Lutz Wollin, Klaus Erb, Ekaterina Boiarina, Hesam Movassagh, Jörg Scheffel, Jan M Doehn, Stefan Hippenstiel, Marcus Maurer, Abdelilah S Gounni, Wolfgang M Kuebler, Norbert Suttorp, Martin Witzenrath
BACKGROUND: Spleen tyrosine kinase (Syk) is an intracellular non-receptor tyrosine kinase, which has been implicated as central immune modulator promoting allergic airway inflammation. Syk inhibition has been proposed as a new therapeutic approach in asthma. However, the direct effects of Syk inhibition on airway constriction independent of allergen sensitization remain elusive. METHODS: Spectral confocal microscopy of human and murine lung tissue was performed to localize Syk expression...
December 1, 2016: Allergy
https://www.readbyqxmd.com/read/27906450/lovtrap-a-versatile-method-to-control-protein-function-with-light
#19
Hui Wang, Klaus M Hahn
We describe a detailed procedure for the use of LOVTRAP, an approach to reversibly sequester and release proteins from cellular membranes using light. In the application described here, proteins that act at the plasma membrane are held at mitochondria in the dark, and reversibly released by irradiation. The technique relies on binding of an engineered Zdk domain to a LOV2 domain, with affinity <30 nM in the dark and >500 nM upon irradiation between 400 and 500 nm. LOVTRAP can be applied to diverse proteins, as it requires attaching only one member of the Zdk/LOV2 pair to the target protein, and the other to the membrane where the target protein is to be sequestered...
December 1, 2016: Current Protocols in Cell Biology
https://www.readbyqxmd.com/read/27906448/a-randomized-controlled-trial-of-a-multicomponent-targeted-low-literacy-educational-intervention-compared-with-a-nontargeted-intervention-to-boost-colorectal-cancer-screening-with-fecal-immunochemical-testing-in-community-clinics
#20
Stacy N Davis, Shannon M Christy, Enmanuel A Chavarria, Rania Abdulla, Steven K Sutton, Alyssa R Schmidt, Susan T Vadaparampil, Gwendolyn P Quinn, Vani N Simmons, Chukwudi B Ufondu, Chitra Ravindra, Ida Schultz, Richard G Roetzheim, David Shibata, Cathy D Meade, Clement K Gwede
BACKGROUND: The objective of the current study was to improve colorectal cancer (CRC) screening uptake with the fecal immunochemical test (FIT). The current study investigated the differential impact of a multicomponent, targeted, low-literacy educational intervention compared with a standard, nontargeted educational intervention. METHODS: Patients aged 50 to 75 years who were of average CRC risk and not up-to-date with CRC screening were recruited from either a federally qualified health center or a primary care community health clinic...
December 1, 2016: Cancer
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