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JOURNAL ARTICLE
Setu Vora, Bryan T Phillips
Caenorhabditis elegans embryos rapidly diversify cell fate using a modified Wnt/β-catenin signaling strategy to carry out serial asymmetric cell divisions (ACDs). Wnt-dependent ACDs rely on nuclear asymmetry of the transcriptional coactivator SYS-1/β-catenin between daughter cells to differentially activate Wnt-responsive target genes. Here, we investigate how dynamic localization of SYS-1 to mitotic centrosomes influences SYS-1 inheritance in daughter cells and cell-fate outcomes after ACD. Through yeast two-hybrid screening, we identify the centrosomal protein RSA-2 as a SYS-1 binding partner and show that localization of SYS-1 to mitotic centrosomes is dependent on RSA-2...
April 20, 2015: Current Biology: CB
#22
JOURNAL ARTICLE
Halvor Øygarden, Annette Fromm, Kristin Modalsli Sand, Geir Egil Eide, Lars Thomassen, Halvor Naess, Ulrike Waje-Andreassen
BACKGROUND: Family history (FH) is a risk factor for cardiovascular disease, especially coronary artery disease (CAD). The impact on risk of stroke is less clear. This study investigated young and middle-aged ischemic stroke patients' knowledge on FH of stroke, CAD, and peripheral artery disease (PAD) with a special regard to sex differences. METHODS: From September 2010 to February 2014, all ischemic stroke patients aged 15-60 years were prospectively included in the Norwegian Stroke in the Young Study (NOR-SYS)...
December 2015: BMC Neurology
#23
REVIEW
Yunsuk Jeon, Pia Lahtinen, Riitta Meretoja, Helena Leino-Kilpi
OBJECTIVES: The purpose of this review was to analyse post-registration anaesthesia nursing education in the Nordic countries. The analysis was based on key determinants fundamental to analysing nursing education: 1) the sys]tem of anaesthesia nursing education, 2) entry requirements, 3) credits, the duration and the title or degree awarded, and 4) the amount of practical training. METHODS: A scoping review was approached in a systematic manner. The literature was analysed using deductive content analysis...
May 2015: Nurse Education Today
#24
JOURNAL ARTICLE
N Ryken, M Vanmaercke, J Wanyama, M Isabirye, S Vanonckelen, J Deckers, J Poesen
During the past decades, land use change in the Lake Victoria basin has significantly increased the sediment fluxes to the lake. These sediments as well as their associated nutrients and pollutants affect the food and water security of millions of people in one of Africa's most densely populated regions. Adequate catchment management strategies, based on a thorough understanding of the factors controlling runoff and sediment discharge are therefore crucial. Nonetheless, studies on the magnitude and dynamics of runoff and sediment discharge are very scarce for the Lake Victoria basin and the African Rift region...
April 1, 2015: Science of the Total Environment
#25
JOURNAL ARTICLE
Derrek P Hibar, Jason L Stein, Miguel E Renteria, Alejandro Arias-Vasquez, Sylvane Desrivières, Neda Jahanshad, Roberto Toro, Katharina Wittfeld, Lucija Abramovic, Micael Andersson, Benjamin S Aribisala, Nicola J Armstrong, Manon Bernard, Marc M Bohlken, Marco P Boks, Janita Bralten, Andrew A Brown, M Mallar Chakravarty, Qiang Chen, Christopher R K Ching, Gabriel Cuellar-Partida, Anouk den Braber, Sudheer Giddaluru, Aaron L Goldman, Oliver Grimm, Tulio Guadalupe, Johanna Hass, Girma Woldehawariat, Avram J Holmes, Martine Hoogman, Deborah Janowitz, Tianye Jia, Sungeun Kim, Marieke Klein, Bernd Kraemer, Phil H Lee, Loes M Olde Loohuis, Michelle Luciano, Christine Macare, Karen A Mather, Manuel Mattheisen, Yuri Milaneschi, Kwangsik Nho, Martina Papmeyer, Adaikalavan Ramasamy, Shannon L Risacher, Roberto Roiz-Santiañez, Emma J Rose, Alireza Salami, Philipp G Sämann, Lianne Schmaal, Andrew J Schork, Jean Shin, Lachlan T Strike, Alexander Teumer, Marjolein M J van Donkelaar, Kristel R van Eijk, Raymond K Walters, Lars T Westlye, Christopher D Whelan, Anderson M Winkler, Marcel P Zwiers, Saud Alhusaini, Lavinia Athanasiu, Stefan Ehrlich, Marina M H Hakobjan, Cecilie B Hartberg, Unn K Haukvik, Angelien J G A M Heister, David Hoehn, Dalia Kasperaviciute, David C M Liewald, Lorna M Lopez, Remco R R Makkinje, Mar Matarin, Marlies A M Naber, D Reese McKay, Margaret Needham, Allison C Nugent, Benno Pütz, Natalie A Royle, Li Shen, Emma Sprooten, Daniah Trabzuni, Saskia S L van der Marel, Kimm J E van Hulzen, Esther Walton, Christiane Wolf, Laura Almasy, David Ames, Sampath Arepalli, Amelia A Assareh, Mark E Bastin, Henry Brodaty, Kazima B Bulayeva, Melanie A Carless, Sven Cichon, Aiden Corvin, Joanne E Curran, Michael Czisch, Greig I de Zubicaray, Allissa Dillman, Ravi Duggirala, Thomas D Dyer, Susanne Erk, Iryna O Fedko, Luigi Ferrucci, Tatiana M Foroud, Peter T Fox, Masaki Fukunaga, J Raphael Gibbs, Harald H H Göring, Robert C Green, Sebastian Guelfi, Narelle K Hansell, Catharina A Hartman, Katrin Hegenscheid, Andreas Heinz, Dena G Hernandez, Dirk J Heslenfeld, Pieter J Hoekstra, Florian Holsboer, Georg Homuth, Jouke-Jan Hottenga, Masashi Ikeda, Clifford R Jack, Mark Jenkinson, Robert Johnson, Ryota Kanai, Maria Keil, Jack W Kent, Peter Kochunov, John B Kwok, Stephen M Lawrie, Xinmin Liu, Dan L Longo, Katie L McMahon, Eva Meisenzahl, Ingrid Melle, Sebastian Mohnke, Grant W Montgomery, Jeanette C Mostert, Thomas W Mühleisen, Michael A Nalls, Thomas E Nichols, Lars G Nilsson, Markus M Nöthen, Kazutaka Ohi, Rene L Olvera, Rocio Perez-Iglesias, G Bruce Pike, Steven G Potkin, Ivar Reinvang, Simone Reppermund, Marcella Rietschel, Nina Romanczuk-Seiferth, Glenn D Rosen, Dan Rujescu, Knut Schnell, Peter R Schofield, Colin Smith, Vidar M Steen, Jessika E Sussmann, Anbupalam Thalamuthu, Arthur W Toga, Bryan J Traynor, Juan Troncoso, Jessica A Turner, Maria C Valdés Hernández, Dennis van 't Ent, Marcel van der Brug, Nic J A van der Wee, Marie-Jose van Tol, Dick J Veltman, Thomas H Wassink, Eric Westman, Ronald H Zielke, Alan B Zonderman, David G Ashbrook, Reinmar Hager, Lu Lu, Francis J McMahon, Derek W Morris, Robert W Williams, Han G Brunner, Randy L Buckner, Jan K Buitelaar, Wiepke Cahn, Vince D Calhoun, Gianpiero L Cavalleri, Benedicto Crespo-Facorro, Anders M Dale, Gareth E Davies, Norman Delanty, Chantal Depondt, Srdjan Djurovic, Wayne C Drevets, Thomas Espeseth, Randy L Gollub, Beng-Choon Ho, Wolfgang Hoffmann, Norbert Hosten, René S Kahn, Stephanie Le Hellard, Andreas Meyer-Lindenberg, Bertram Müller-Myhsok, Matthias Nauck, Lars Nyberg, Massimo Pandolfo, Brenda W J H Penninx, Joshua L Roffman, Sanjay M Sisodiya, Jordan W Smoller, Hans van Bokhoven, Neeltje E M van Haren, Henry Völzke, Henrik Walter, Michael W Weiner, Wei Wen, Tonya White, Ingrid Agartz, Ole A Andreassen, John Blangero, Dorret I Boomsma, Rachel M Brouwer, Dara M Cannon, Mark R Cookson, Eco J C de Geus, Ian J Deary, Gary Donohoe, Guillén Fernández, Simon E Fisher, Clyde Francks, David C Glahn, Hans J Grabe, Oliver Gruber, John Hardy, Ryota Hashimoto, Hilleke E Hulshoff Pol, Erik G Jönsson, Iwona Kloszewska, Simon Lovestone, Venkata S Mattay, Patrizia Mecocci, Colm McDonald, Andrew M McIntosh, Roel A Ophoff, Tomas Paus, Zdenka Pausova, Mina Ryten, Perminder S Sachdev, Andrew J Saykin, Andy Simmons, Andrew Singleton, Hilkka Soininen, Joanna M Wardlaw, Michael E Weale, Daniel R Weinberger, Hieab H H Adams, Lenore J Launer, Stephan Seiler, Reinhold Schmidt, Ganesh Chauhan, Claudia L Satizabal, James T Becker, Lisa Yanek, Sven J van der Lee, Maritza Ebling, Bruce Fischl, W T Longstreth, Douglas Greve, Helena Schmidt, Paul Nyquist, Louis N Vinke, Cornelia M van Duijn, Luting Xue, Bernard Mazoyer, Joshua C Bis, Vilmundur Gudnason, Sudha Seshadri, M Arfan Ikram, Nicholas G Martin, Margaret J Wright, Gunter Schumann, Barbara Franke, Paul M Thompson, Sarah E Medland
The highly complex structure of the human brain is strongly shaped by genetic influences. Subcortical brain regions form circuits with cortical areas to coordinate movement, learning, memory and motivation, and altered circuits can lead to abnormal behaviour and disease. To investigate how common genetic variants affect the structure of these brain regions, here we conduct genome-wide association studies of the volumes of seven subcortical regions and the intracranial volume derived from magnetic resonance images of 30,717 individuals from 50 cohorts...
April 9, 2015: Nature
#26
JOURNAL ARTICLE
N Van Der Vekens, A Decloedt, S Sys, S Ven, D De Clercq, G van Loon
Cardiac troponin I (cTnI) is a marker for detection of myocardial damage in horses. Many cTnI assays exist and medical studies have shown that the clinical performance of assays differs. The aim of this study was to compare two different cTnI assays in horses. Serum samples were taken from 23 healthy horses (group 1) and 72 horses with cardiac disease (group 2). Cardiac troponin I was determined using assay 1 in laboratory A (limit of detection, LOD, 0.03 ng/mL) and assay 2 in laboratories B and C (LOD 0...
January 2015: Veterinary Journal
#27
JOURNAL ARTICLE
Jiwen Liu, Xiaoshou Liu, Min Wang, Yanlu Qiao, Yanfen Zheng, Xiao-Hua Zhang
Microbial communities of the Chinese marginal seas have rarely been reported. Here, bacterial and archaeal community structures and abundance in the surface sediment of four sea areas including the Bohai Sea (BS), North Yellow Sea (NYS), South Yellow Sea (SYS), and the north East China Sea (NECS) were surveyed by 16S ribosomal RNA (rRNA) gene pyrosequencing and quantitative PCR. The results showed that microbial communities of the four geographic areas were distinct from each other at the operational taxonomic unit (OTU) level, whereas the microbial communities of the BS, NYS, and SYS were more similar to each other than to the NECS at higher taxonomic levels...
July 2015: Microbial Ecology
#28
JOURNAL ARTICLE
Flavie Vial, John Berezowski
The field of animal syndromic surveillance (SyS) is growing, with many systems being developed worldwide. Now is an appropriate time to share ideas and lessons learned from early SyS design and implementation. Based on our practical experience in animal health SyS, with additions from the public health and animal health SyS literature, we put forward for discussion a 6-step approach to designing SyS systems for livestock and poultry. The first step is to formalise policy and surveillance goals which are considerate of stakeholder expectations and reflect priority issues (1)...
June 1, 2015: Preventive Veterinary Medicine
#29
JOURNAL ARTICLE
Philippe Thomas, Pawel Durek, Illés Solt, Bertram Klinger, Franziska Witzel, Pascal Schulthess, Yvonne Mayer, Domonkos Tikk, Nils Blüthgen, Ulf Leser
MOTIVATION: A highly interlinked network of transcription factors (TFs) orchestrates the context-dependent expression of human genes. ChIP-chip experiments that interrogate the binding of particular TFs to genomic regions are used to reconstruct gene regulatory networks at genome-scale, but are plagued by high false-positive rates. Meanwhile, a large body of knowledge on high-quality regulatory interactions remains largely unexplored, as it is available only in natural language descriptions scattered over millions of scientific publications...
April 15, 2015: Bioinformatics
#30
JOURNAL ARTICLE
G Edward Marti, Andrew MacRae, Ryan Olf, Sean Lourette, Fang Fang, Dan M Stamper-Kurn
We measure the dispersion relation, gap, and magnetic moment of a magnon in the ferromagnetic F = 1 spinor Bose-Einstein condensate of (87)Rb. From the dispersion relation we measure an average effective mass 1.033(2)(stat)(10)(sys) times the atomic mass, as determined by interfering standing and running coherent magnon waves within the dense and trapped condensed gas. The measured mass is higher than theoretical predictions of mean-field and beyond-mean-field Beliaev theory for a bulk spinor Bose gas with s-wave contact interactions...
October 10, 2014: Physical Review Letters
#31
JOURNAL ARTICLE
Louise Skov, Sys Stybe Johansen, Kristian Linnet
Postmortem femoral blood concentrations of the antipsychotic drugs aripiprazole, chlorprothixene and its metabolite, and quetiapine were determined by LC-MS-MS in 25 cases for aripiprazole and 60 cases each for chlorprothixene and quetiapine. For cases where the cause of death was not related to the considered drugs, the following blood concentration intervals (10-90 percentiles) were observed: 0.049-0.69 mg/kg for aripiprazole, 0.006-0.24 mg/kg for chlorprothixene, and 0.006-0.37 mg/kg for quetiapine. These concentration ranges largely correspond to therapeutic plasma levels observed in vivo suggesting no or only limited postmortem redistribution for aripiprazole, chlorprothixene with metabolite, and quetiapine in these cases...
January 2015: Journal of Analytical Toxicology
#32
JOURNAL ARTICLE
Valentine Martlé, Valérie Bavegems, Luc Van Ham, Paul Boon, Kristl Vonck, Robrecht Raedt, Stanislas Sys, Sofie Bhatti
Vagus nerve stimulation (VNS) is an established treatment for epilepsy and depression in human patients, but in both humans and dogs, optimal stimulation parameters remain unknown. Delivering afferent bursts of stimulation may be promising as a means of increasing efficacy, but evaluation of potential effects on the heart due to unavoidable efferent stimulation is required. The present study investigated heart rate variability (HRV) in healthy Beagle dogs treated with 1 h of sham, standard or microburst left-sided VNS in a crossover design...
December 2014: Veterinary Journal
#33
JOURNAL ARTICLE
N van der Vekens, A Decloedt, D de Clercq, S Ven, S Sys, G van Loon
REASONS FOR PERFORMING STUDY: Studies on the use of atrial natriuretic peptide (ANP) as a biomarker for left atrial dilatation in horses have produced variable results. Few have been performed, and the results may have been influenced by ANP instability, differences in sampling protocol and changes in the assay over time. N-Terminal proANP (NT-proANP) is a more stable molecule and might be a good alternative for clinical use. OBJECTIVES: To compare ANP and NT-proANP in terms of the detection of left atrial dilatation and to determine the influence of sample storage at temperatures of -80 and -20°C...
January 2016: Equine Veterinary Journal
#34
JOURNAL ARTICLE
Stefan Bandlitz, Christine Purslow, Paul J Murphy, Heiko Pult
PURPOSE: Using a novel digital meniscometer (PDM), alterations in tear meniscus radius (TMR) were measured simultaneously with blink rate (BR) following the instillation of artificial tears. METHODS: Central TMR and BR of 22 subjects (11 male and 11 female; mean age, 24.3 ± 2.6 SD years) were measured at baseline, and 0, 1, 5, 10, and 30 minutes after instillation of an artificial tear containing hydroxypropyl-guar and glycol (SYS) or saline (SAL). A dose of 35 μL was applied in one eye in a randomized order with a washout period between each drop...
September 2014: Investigative Ophthalmology & Visual Science
#35
JOURNAL ARTICLE
G Bettoncelli
COPD is a chronic pathological condition of the respiratory system characterized by persistent and partially re-versible airflow obstruction, to which variably contribute remodeling of bronchi (chronic bronchitis), bronchi-oles (small airway disease) and lung parenchyma (pulmonary emphysema). COPD can cause important sys-temic effects and be associated with complications and comorbidities. The diagnosis of COPD is based on the presence of respiratory symptoms and/or a history of exposure to risk factors, and the demonstration of airflow obstruction by spirometry...
2014: Sarcoidosis, Vasculitis, and Diffuse Lung Diseases: Official Journal of WASOG
#36
JOURNAL ARTICLE
Melissa LaBonty, Cleo Szmygiel, Lauren E Byrnes, Samantha Hughes, Alison Woollard, Erin J Cram
Wnt signaling is tightly regulated during animal development and controls cell proliferation and differentiation. In C. elegans, activation of Wnt signaling alters the activity of the TCF/LEF transcription factor, POP-1, through activation of the Wnt/β-catenin or Wnt/β-catenin asymmetry pathways. In this study, we have identified CACN-1 as a potential regulator of POP-1 in C. elegans larval development. CACN-1/Cactin is a well-conserved protein of unknown molecular function previously implicated in the regulation of several developmental signaling pathways...
2014: PloS One
#37
JOURNAL ARTICLE
Austin T Baldwin, Bryan T Phillips
The APC tumor suppressor regulates diverse stem cell processes including gene regulation through Wnt-β-catenin signaling and chromosome stability through microtubule interactions, but how the disparate functions of APC are controlled is not well understood. Acting as part of a Wnt-β-catenin pathway that controls asymmetric cell division, Caenorhabditis elegans APC, APR-1, promotes asymmetric nuclear export of the β-catenin WRM-1 by asymmetrically stabilizing microtubules. Wnt function also depends on a second β-catenin, SYS-1, which binds to the C...
June 15, 2014: Journal of Cell Science
#38
JOURNAL ARTICLE
Scott M Robertson, Rueyling Lin
In this commentary, we discuss how our recent paper by Yang et al. contributes a new wrinkle to the already somewhat curious Wnt signaling pathway in C. elegans. We begin with a historical perspective on the Wnt pathway in the worm, followed by a summary of the key salient point from Yang et al., 2011, namely demonstration of mutually inhibitory binding of a β-catenin SYS-1 to the N-terminus and another β-catenin WRM-1 to the C-terminus of the TCF protein POP-1, and a plausible structural explanation for these differential binding specificities...
January 1, 2012: Worm
#39
JOURNAL ARTICLE
FGF signaling regulates Wnt ligand expression to control vulval cell lineage polarity in C. elegans.
Paul J Minor, Ting-Fang He, Chang Ho Sohn, Anand R Asthagiri, Paul W Sternberg
The interpretation of extracellular cues leading to the polarization of intracellular components and asymmetric cell divisions is a fundamental part of metazoan organogenesis. The Caenorhabditis elegans vulva, with its invariant cell lineage and interaction of multiple cell signaling pathways, provides an excellent model for the study of cell polarity within an organized epithelial tissue. Here, we show that the fibroblast growth factor (FGF) pathway acts in concert with the Frizzled homolog LIN-17 to influence the localization of SYS-1, a component of the Wnt/β-catenin asymmetry pathway, indirectly through the regulation of cwn-1...
September 2013: Development
#40
REVIEW
James D McGhee
The transcriptional regulatory hierarchy that controls development of the Caenorhabditis elegans endoderm begins with the maternally provided SKN-1 transcription factor, which determines the fate of the EMS blastomere of the four-cell embryo. EMS divides to produce the posterior E blastomere (the clonal progenitor of the intestine) and the anterior MS blastomere, a major contributor to mesoderm. This segregation of lineage fates is controlled by an intercellular signal from the neighboring P2 blastomere and centers on the HMG protein POP-1...
May 2013: Wiley Interdisciplinary Reviews. Developmental Biology
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