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https://www.readbyqxmd.com/read/28231043/transient-oxytocin-signaling-primes-the-development-and-function-of-excitatory-hippocampal-neurons
#1
Silvia Ripamonti, Mateusz C Ambrozkiewicz, Francesca Guzzi, Marta Gravati, Gerardo Biella, Ingo Bormuth, Matthieu Hammer, Liam P Tuffy, Albrecht Sigler, Hiroshi Kawabe, Katsuhiko Nishimori, Mauro Toselli, Nils Brose, Marco Parenti, JeongSeop Rhee
Beyond its role in parturition and lactation, oxytocin influences higher brain processes that control social behavior of mammals, and perturbed oxytocin signaling has been linked to the pathogenesis of several psychiatric disorders. However, it is still largely unknown how oxytocin exactly regulates neuronal function. We show that early, transient oxytocin exposure in vitro inhibits the development of hippocampal glutamatergic neurons, leading to reduced dendrite complexity, synapse density, and excitatory transmission, while sparing GABAergic neurons...
February 23, 2017: ELife
https://www.readbyqxmd.com/read/28224731/controlling-cellular-uptake-and-toxicity-of-polyphenylene-dendrimers-by-chemical-functionalization
#2
Brenton Hammer, Yuzhou Wu, Stephan Fischer, Weina Liu, Tanja Weil, Klaus Müllen
Polyphenylene dendrimers (PPDs) represent a unique class of macromolecules based on their monodisperse and shape-persistent nature. These characteristics have enabled the synthesis of a new genre of "patched" surface dendrimers where their exterior can be functionalized with a variety of polar and unpolar substituents to yield lipophilic binding sites in a site-specific way. While such materials have proven capable of complexing biologically relevant molecules, shown high cellular uptake in various cell lines, and low to no toxicity; there is minimal understanding of the driving forces to these characteristics...
February 21, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28223289/when-all-you-have-is-a-hammer-the-need-for-tools-to-define-and-apply-patient-centered-outcomes-in-hemodialysis
#3
EDITORIAL
C Barrett Bowling, Laura C Plantinga
No abstract text is available yet for this article.
February 21, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28222089/ethical-considerations-for-data-collection-using-surveys
#4
Marilyn J Hammer
Surveys are widely used instruments to collect research data. Although surveys may appear relatively benign and easily unlinked to participants, considerations for the ethical conduct of research with surveys are important. Maintaining scientific rigor is essential. This article explores ethical tenets in relation to informed consent and scientific consent when using surveys.
March 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28218395/coffee-tea-and-melanoma-risk-findings-from-the-european-prospective-investigation-into-cancer-and-nutrition
#5
Saverio Caini, Giovanna Masala, Calogero Saieva, Marina Kvaskoff, Isabelle Savoye, Carlotta Sacerdote, Oskar Hemmingsson, Bodil Hammer Bech, Kim Overvad, Anne Tjønneland, Kristina E N Petersen, Francesca Romana Mancini, Marie-Christine Boutron-Ruault, Iris Cervenka, Rudolf Kaaks, Tilman Kühn, Heiner Boeing, Anna Floegel, Antonia Trichopoulou, Elisavet Valanou, Maria Kritikou, Giovanna Tagliabue, Salvatore Panico, Rosario Tumino, H Bas Bueno-de-Mesquita, Petra H Peeters, Marit B Veierød, Reza Ghiasvand, Marko Lukic, José Ramón Quirós, Maria-Dolores Chirlaque, Eva Ardanaz, Elena Salamanca Fernández, Nerea Larrañaga, Raul Zamora-Ros, Lena Maria Nilsson, Ingrid Ljuslinder, Karin Jirström, Emily Sonestedt, Timothy J Key, Nick Wareham, Kay-Tee Khaw, Marc Gunter, Inge Huybrechts, Neil Murphy, Konstantinos K Tsilidis, Elisabete Weiderpass, Domenico Palli
In vitro and animal studies suggest that bioactive constituents of coffee and tea may have anticarcinogenic effects against cutaneous melanoma, however epidemiological evidence is limited to date. We examined the relationships between coffee (total, caffeinated or decaffeinated) and tea consumption and risk of melanoma in the European Prospective Investigation into Cancer and Nutrition (EPIC). EPIC is a multi-centre prospective study that enrolled over 500,000 participants aged 25-70 years from ten European countries in 1992-2000...
February 20, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28215279/about-training-and-memory-nk-cell-adaptation-to-viral-infections
#6
Q Hammer, C Romagnani
Viral infections continuously challenge and shape our immune system. Due to their fine antigen recognition ability, adaptive lymphocytes protect against pathogen reencounter by generating specific immunological memory. Innate cells such as macrophages also adapt to pathogen challenge and mount resistance to reinfection, a phenomenon termed trained immunity. As part of the innate immunity, natural killer (NK) cells can display rapid effector functions and play a crucial role in the control of viral infections, especially by the β-herpesvirus cytomegalovirus (CMV)...
2017: Advances in Immunology
https://www.readbyqxmd.com/read/28210791/-comparison-of-trabeculectomy-and-canaloplasty-pressure-reducing-effect-and-postoperative-interventions-complications
#7
T Taruttis, E Chankiewitz, T Hammer
BACKGROUND: Trabeculectomy (TET) is still the most commonly performed surgical treatment in dealing with primary open angle glaucoma (POAG) worldwide. Canaloplasty (CP) as a nonpenetrating surgical procedure has recently become a new option to efficiently reduce intraocular pressure (IOP). OBJECTIVES: This study compared both surgical procedures concerning the efficacy in IOP reduction. Furthermore we compared IOP fluctuation, postoperative medication, visual acuity, astigmatism and postoperative interventions and complications...
February 16, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28199679/higher-t-cell-responses-induced-by-dna-rad5-hiv-1-preventive-vaccine-are-associated-with-lower-hiv-1-infection-risk-in-an-efficacy-trial
#8
Holly E Janes, Kristen W Cohen, Nicole Frahm, Stephen C De Rosa, Brittany Sanchez, John Hural, Craig A Magaret, Shelly Karuna, Carter Bentley, Raphael Gottardo, Greg Finak, Douglas Grove, Mingchao Shen, Barney S Graham, Richard A Koup, Mark J Mulligan, Beryl Koblin, Susan P Buchbinder, Michael C Keefer, Elizabeth Adams, Chuka Anude, Lawrence Corey, Magdalena Sobieszczyk, Scott M Hammer, Peter B Gilbert, M Juliana McElrath
No abstract text is available yet for this article.
February 12, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28188227/the-hla-b27-peptidome-in-vivo-in-spondyloarthritis-susceptible-hla-b27-transgenic-rats-and-the-effect-of-erap1-deletion
#9
Eilon Barnea, Dganit Melamed Kadosh, Yael Haimovich, Nimman Satumtira, Martha L Dorris, Mylinh T Nguyen, Robert E Hammer, Tri M Tran, Robert A Colbert, Joel D Taurog, Arie Admon
HLA-B27 is a class I major histocompatibility (MHC-I) allele that confers susceptibility to the rheumatic disease ankylosing spondylitis (AS) by an unknown mechanism. ERAP1 is an aminopeptidase that trims peptides in the endoplasmic reticulum for binding to MHC-I molecules. ERAP1 shows genetic epistasis with HLA-B27 in conferring susceptibility to AS. Male HLA-B27 transgenic rats develop arthritis and serve as an animal model of AS, whereas female B27 transgenic rats remain healthy. We used large-scale quantitative mass-spectrometry to identify over 15,000 unique HLA-B27 peptide ligands, isolated after immunoaffinity purification of the B27 molecules from the spleens of HLA-B27 transgenic rats...
February 10, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28187555/new-species-and-records-of-ptyctimous-mites-acari-oribatida-from-the-philippines
#10
Wojciech Niedbała, Sergey G Ermilov
A list of identified oribatid ptyctimous mites from the Philippine Islands Luzon, Mindanao, Polillo and Samar Islands, including 16 species, 10 genera and 5 families, is provided. The genus Mesotritia and species Atropacarus (Atropacarus) griseus (Niedbała, 1984), A. (Atropacarus) striculus (C. L. Koch, 1835) and A. (Hoplophorella) stilifer (Hammer, 1961) are recorded for the Philippine fauna for the first time. Two new species, Mesotritia paraflagelliformis Niedbała sp. nov. (Oribotritiidae) and Plonaphacarus leonilae Niedbała sp...
February 9, 2017: Zootaxa
https://www.readbyqxmd.com/read/28186745/combining-evolutionary-algorithms-with-clustering-toward-rational-global-structure-optimization-at-the-atomic-scale
#11
Mathias S Jørgensen, Michael N Groves, Bjørk Hammer
Predicting structures at the atomic scale is of great importance for understanding the properties of materials. Such predictions are infeasible without efficient global optimization techniques. Many current techniques produce a large amount of idle intermediate data before converging to the global minimum. If this information could be analyzed during optimization, many new possibilities emerge for more rational search algorithms. We combine an evolutionary algorithm (EA) and clustering, a machine-learning technique, to produce a rational algorithm for global structure optimization...
February 22, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28182455/finding-time-over-time-longitudinal-links-between-employed-mothers-work-family-conflict-and-time-profiles
#12
Soomi Lee, Susan M McHale, Ann C Crouter, Leslie B Hammer, David M Almeida
Drawing upon the Work-Home Resources model (ten Brummelhuis & Bakker, 2012), this study examined the links between work-family conflict and employed mothers' profiles of time resources for work and parenting roles. Using a person-centered latent profile approach, we identified 3 profiles of time use and perceived time adequacy in a sample of mothers employed in the extended-care industry (N = 440): a Work-Oriented profile, characterized by spending relatively more time at work, perceiving lower time adequacy for work, spending less time with children, and perceiving lower time adequacy for children; a Parenting-Oriented profile, characterized by the opposite pattern; and a Role-Balanced profile, characterized by average levels across the 4 dimensions...
February 9, 2017: Journal of Family Psychology: JFP
https://www.readbyqxmd.com/read/28181479/multi-atlas-attenuation-correction-supports-full-quantification-of-static-and-dynamic-brain-pet-data-in-pet-mr
#13
Ines Merida, Anthonin Reilhac, Jerome Redoute, Rolf Heckemann, Nicolas Costes, Alexander Hammers
Introduction In simultaneous PET-MR, attenuation maps are not directly available. Essential for absolute radioactivity quantification, they need to be derived from MR or PET data to correct for gamma photon attenuation by the imaged object. We evaluate a multi-atlas attenuation correction method for brain imaging (MaxProb) on static [18F]FDG PET and, for the first time, on dynamic PET, using the serotoninergic tracer [18F]MPPF. Methods A database of 40 MR/CT image pairs (atlases) was used. The MaxProb method synthesises subject-specific pseudo-CTs by registering each atlas to the target subject space...
February 9, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28181244/plant-functional-traits-and-canopy-structure-control-the-relationship-between-photosynthetic-co2-uptake-and-far-red-sun-induced-fluorescence-in-a-mediterranean-grassland-under-different-nutrient-availability
#14
Mirco Migliavacca, Oscar Perez-Priego, Micol Rossini, Tarek S El-Madany, Gerardo Moreno, Christiaan van der Tol, Uwe Rascher, Anna Berninger, Verena Bessenbacher, Andreas Burkart, Arnaud Carrara, Francesco Fava, Jin-Hong Guan, Tiana W Hammer, Kathrin Henkel, Enrique Juarez-Alcalde, Tommaso Julitta, Olaf Kolle, M Pilar Martín, Talie Musavi, Javier Pacheco-Labrador, Andrea Pérez-Burgueño, Thomas Wutzler, Sönke Zaehle, Markus Reichstein
Sun-induced fluorescence (SIF) in the far-red region provides a new noninvasive measurement approach that has the potential to quantify dynamic changes in light-use efficiency and gross primary production (GPP). However, the mechanistic link between GPP and SIF is not completely understood. We analyzed the structural and functional factors controlling the emission of SIF at 760 nm (F760 ) in a Mediterranean grassland manipulated with nutrient addition of nitrogen (N), phosphorous (P) or nitrogen-phosphorous (NP)...
February 9, 2017: New Phytologist
https://www.readbyqxmd.com/read/28179166/macroanatomy-and-3d-probabilistic-atlas-of-the-human-insula
#15
Isabelle Faillenot, Rolf A Heckemann, Maud Frot, Alexander Hammers
The human insula is implicated in numerous functions. More and more neuroimaging studies focus on this region, however no atlas offers a complete subdivision of the insula in a reference space. The aims of this study were to define a protocol to subdivide insula, to create probability maps in the MNI152 stereotaxic space, and to provide normative reference volume measurements for these subdivisions. Six regions were manually delineated bilaterally on 3D T1 MR images of 30 healthy subjects: the three short gyri, the anterior inferior cortex, and the two long gyri...
February 4, 2017: NeuroImage
https://www.readbyqxmd.com/read/28177376/development-and-validation-of-equations-to-predict-the-metabolizable-energy-value-of-corn-for-pigs
#16
T M Bertol, D L Zanotto, A Coldebella, J V Ludke
Three experiments were conducted with the aim of developing and validating an equation to predict the ME of corn for pigs from its chemical composition, physical characteristics and particle size. Exp. 1: Eight lots of corn were ground in a hammer mill, using 5 sieves with different screen opening sizes, generating 40 batches of ground corn. The chemical composition (DM, CP, ether extract, crude fiber, ADF, NDF, and ash) and physical characteristics (bulk density- BD and 1,000-kernel weight- TKW) were determined in the 8 lots and geometric mean diameter (GMD) and N-corrected ME (AMEn) were determined in the 40 batches of corn...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28176348/inflammatory-bowel-diseases-in-faroese-born-danish-residents-and-their-offspring-further-evidence-of-the-dominant-role-of-environmental-factors-in-ibd-development
#17
T Hammer, S N Lophaven, K R Nielsen, M von Euler-Chelpin, P Weihe, P Munkholm, J Burisch, E Lynge
BACKGROUND: The incidence of inflammatory bowel disease (IBD) is record high in the Faroe Islands, and many Faroese emigrate to Denmark, where the IBD incidence is considerably lower. AIM: To study the IBD incidence in first-, second- and third-generation immigrants from the Faroe Islands to Denmark to assess the extent to which the immigrants adopt the lower IBD incidence of their new home country. METHODS: Data on Faroese-born Danish residents and their children were retrieved from the Danish Central Population Register for 1980-2014...
February 8, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28175220/p692-inflammatory-bowel-diseases-in-faroese-born-danish-residents-and-their-offspring-further-evidence-of-the-dominant-role-of-environmental-factors-in-ibd-development
#18
T Hammer, S N Lophaven, K Rubek Nielsen, M C von Euler-Chelpin, P Weihe, P Munkholm, J Burisch, E Lynge
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28167638/effects-of-repeated-ropinirole-treatment-on-phencyclidine-induced-hyperlocomotion-prepulse-inhibition-deficits-and-social-avoidance-in-rats
#19
Amanda M Maple, Tanessa Call, Phylicia C Kimmel, Ronald P Hammer
Phencyclidine (PCP), a noncompetitive N-methyl D-aspartate (NMDA) receptor antagonist, provides the most complete pharmacological model of schizophrenia in humans and animals. Acute PCP causes hyperlocomotion, disrupts prepulse inhibition (PPI), and increases social avoidance in rats. We previously showed that repeated treatment with the dopamine (DA) D2-like receptor agonists, quinpirole or ropinirole, prevents agonist-induced PPI disruption. The present study examines whether repeated ropinirole treatment similarly attenuates the effects of PCP in a more complete model of schizophrenia symptoms...
February 6, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28166882/effect-of-hammer-mass-on-upper-extremity-joint-moments
#20
Nilanthy Balendra, Joseph E Langenderfer
This study used an OpenSim inverse-dynamics musculoskeletal model scaled to subject-specific anthropometrics to calculate three-dimensional intersegmental moments at the shoulder, elbow and wrist while 10 subjects used 1 and 2 lb hammers to drive nails. Motion data were collected via an optoelectronic system and the interaction of the hammer with nails was recorded with a force plate. The larger hammer caused substantial increases (50-150%) in moments, although increases differed by joint, anatomical component, and significance of the effect...
April 2017: Applied Ergonomics
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