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  • 1
    Publication Date: 2015-03-20
    Description: MaNGA (Mapping Nearby Galaxies at Apache Point Observatory) is a 6-yr SDSS-IV (Sloan Digital Sky Survey IV) survey that will obtain resolved spectroscopy from 3600 to 10 300 Å for a representative sample of over 10 000 nearby galaxies. In this paper, we derive spatially resolved stellar population properties and radial gradients by performing full spectral fitting of observed galaxy spectra from P-MaNGA, a prototype of the MaNGA instrument. These data include spectra for 18 galaxies, covering a large range of morphological type. We derive age, metallicity, dust, and stellar mass maps, and their radial gradients, using high spectral-resolution stellar population models, and assess the impact of varying the stellar library input to the models. We introduce a method to determine dust extinction which is able to give smooth stellar mass maps even in cases of high and spatially non-uniform dust attenuation. With the spectral fitting, we produce detailed maps of stellar population properties which allow us to identify galactic features among this diverse sample such as spiral structure, smooth radial profiles with little azimuthal structure in spheroidal galaxies, and spatially distinct galaxy sub-components. In agreement with the literature, we find the gradients for galaxies identified as early type to be on average flat in age, and negative (–0.15 dex/ R e ) in metallicity, whereas the gradients for late-type galaxies are on average negative in age (–0.39 dex/ R e ) and flat in metallicity. We demonstrate how different levels of data quality change the precision with which radial gradients can be measured. We show how this analysis, extended to the large numbers of MaNGA galaxies, will have the potential to shed light on galaxy structure and evolution.
    Print ISSN: 0035-8711
    Electronic ISSN: 1365-2966
    Topics: Physics
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  • 2
    Publication Date: 2011-09-02
    Description: Both obesity and being underweight have been associated with increased mortality. Underweight, defined as a body mass index (BMI) 〈/= 18.5 kg per m(2) in adults and 〈/= -2 standard deviations from the mean in children, is the main sign of a series of heterogeneous clinical conditions including failure to thrive, feeding and eating disorder and/or anorexia nervosa. In contrast to obesity, few genetic variants underlying these clinical conditions have been reported. We previously showed that hemizygosity of a approximately 600-kilobase (kb) region on the short arm of chromosome 16 causes a highly penetrant form of obesity that is often associated with hyperphagia and intellectual disabilities. Here we show that the corresponding reciprocal duplication is associated with being underweight. We identified 138 duplication carriers (including 132 novel cases and 108 unrelated carriers) from individuals clinically referred for developmental or intellectual disabilities (DD/ID) or psychiatric disorders, or recruited from population-based cohorts. These carriers show significantly reduced postnatal weight and BMI. Half of the boys younger than five years are underweight with a probable diagnosis of failure to thrive, whereas adult duplication carriers have an 8.3-fold increased risk of being clinically underweight. We observe a trend towards increased severity in males, as well as a depletion of male carriers among non-medically ascertained cases. These features are associated with an unusually high frequency of selective and restrictive eating behaviours and a significant reduction in head circumference. Each of the observed phenotypes is the converse of one reported in carriers of deletions at this locus. The phenotypes correlate with changes in transcript levels for genes mapping within the duplication but not in flanking regions. The reciprocal impact of these 16p11.2 copy-number variants indicates that severe obesity and being underweight could have mirror aetiologies, possibly through contrasting effects on energy balance.〈br /〉〈br /〉〈a href="" target="_blank"〉〈img src="" border="0"〉〈/a〉   〈a href="" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jacquemont, Sebastien -- Reymond, Alexandre -- Zufferey, Flore -- Harewood, Louise -- Walters, Robin G -- Kutalik, Zoltan -- Martinet, Danielle -- Shen, Yiping -- Valsesia, Armand -- Beckmann, Noam D -- Thorleifsson, Gudmar -- Belfiore, Marco -- Bouquillon, Sonia -- Campion, Dominique -- de Leeuw, Nicole -- de Vries, Bert B A -- Esko, Tonu -- Fernandez, Bridget A -- Fernandez-Aranda, Fernando -- Fernandez-Real, Jose Manuel -- Gratacos, Monica -- Guilmatre, Audrey -- Hoyer, Juliane -- Jarvelin, Marjo-Riitta -- Kooy, R Frank -- Kurg, Ants -- Le Caignec, Cedric -- Mannik, Katrin -- Platt, Orah S -- Sanlaville, Damien -- Van Haelst, Mieke M -- Villatoro Gomez, Sergi -- Walha, Faida -- Wu, Bai-Lin -- Yu, Yongguo -- Aboura, Azzedine -- Addor, Marie-Claude -- Alembik, Yves -- Antonarakis, Stylianos E -- Arveiler, Benoit -- Barth, Magalie -- Bednarek, Nathalie -- Bena, Frederique -- Bergmann, Sven -- Beri, Mylene -- Bernardini, Laura -- Blaumeiser, Bettina -- Bonneau, Dominique -- Bottani, Armand -- Boute, Odile -- Brunner, Han G -- Cailley, Dorothee -- Callier, Patrick -- Chiesa, Jean -- Chrast, Jacqueline -- Coin, Lachlan -- Coutton, Charles -- Cuisset, Jean-Marie -- Cuvellier, Jean-Christophe -- David, Albert -- de Freminville, Benedicte -- Delobel, Bruno -- Delrue, Marie-Ange -- Demeer, Benedicte -- Descamps, Dominique -- Didelot, Gerard -- Dieterich, Klaus -- Disciglio, Vittoria -- Doco-Fenzy, Martine -- Drunat, Severine -- Duban-Bedu, Benedicte -- Dubourg, Christele -- El-Sayed Moustafa, Julia S -- Elliott, Paul -- Faas, Brigitte H W -- Faivre, Laurence -- Faudet, Anne -- Fellmann, Florence -- Ferrarini, Alessandra -- Fisher, Richard -- Flori, Elisabeth -- Forer, Lukas -- Gaillard, Dominique -- Gerard, Marion -- Gieger, Christian -- Gimelli, Stefania -- Gimelli, Giorgio -- Grabe, Hans J -- Guichet, Agnes -- Guillin, Olivier -- Hartikainen, Anna-Liisa -- Heron, Delphine -- Hippolyte, Loyse -- Holder, Muriel -- Homuth, Georg -- Isidor, Bertrand -- Jaillard, Sylvie -- Jaros, Zdenek -- Jimenez-Murcia, Susana -- Helas, Geraldine Joly -- Jonveaux, Philippe -- Kaksonen, Satu -- Keren, Boris -- Kloss-Brandstatter, Anita -- Knoers, Nine V A M -- Koolen, David A -- Kroisel, Peter M -- Kronenberg, Florian -- Labalme, Audrey -- Landais, Emilie -- Lapi, Elisabetta -- Layet, Valerie -- Legallic, Solenn -- Leheup, Bruno -- Leube, Barbara -- Lewis, Suzanne -- Lucas, Josette -- MacDermot, Kay D -- Magnusson, Pall -- Marshall, Christian -- Mathieu-Dramard, Michele -- McCarthy, Mark I -- Meitinger, Thomas -- Mencarelli, Maria Antonietta -- Merla, Giuseppe -- Moerman, Alexandre -- Mooser, Vincent -- Morice-Picard, Fanny -- Mucciolo, Mafalda -- Nauck, Matthias -- Ndiaye, Ndeye Coumba -- Nordgren, Ann -- Pasquier, Laurent -- Petit, Florence -- Pfundt, Rolph -- Plessis, Ghislaine -- Rajcan-Separovic, Evica -- Ramelli, Gian Paolo -- Rauch, Anita -- Ravazzolo, Roberto -- Reis, Andre -- Renieri, Alessandra -- Richart, Cristobal -- Ried, Janina S -- Rieubland, Claudine -- Roberts, Wendy -- Roetzer, Katharina M -- Rooryck, Caroline -- Rossi, Massimiliano -- Saemundsen, Evald -- Satre, Veronique -- Schurmann, Claudia -- Sigurdsson, Engilbert -- Stavropoulos, Dimitri J -- Stefansson, Hreinn -- Tengstrom, Carola -- Thorsteinsdottir, Unnur -- Tinahones, Francisco J -- Touraine, Renaud -- Vallee, Louis -- van Binsbergen, Ellen -- Van der Aa, Nathalie -- Vincent-Delorme, Catherine -- Visvikis-Siest, Sophie -- Vollenweider, Peter -- Volzke, Henry -- Vulto-van Silfhout, Anneke T -- Waeber, Gerard -- Wallgren-Pettersson, Carina -- Witwicki, Robert M -- Zwolinksi, Simon -- Andrieux, Joris -- Estivill, Xavier -- Gusella, James F -- Gustafsson, Omar -- Metspalu, Andres -- Scherer, Stephen W -- Stefansson, Kari -- Blakemore, Alexandra I F -- Beckmann, Jacques S -- Froguel, Philippe -- 090532/Wellcome Trust/United Kingdom -- 1RL1MH083268-01/MH/NIMH NIH HHS/ -- 5R01HL087679-02/HL/NHLBI NIH HHS/ -- 5R01MH63706:02/MH/NIMH NIH HHS/ -- AS2173/Autism Speaks/ -- G0500539/Medical Research Council/United Kingdom -- G0600705/Medical Research Council/United Kingdom -- G0801056/Medical Research Council/United Kingdom -- GM061354/GM/NIGMS NIH HHS/ -- MH071425/MH/NIMH NIH HHS/ -- MOP 74502/Canadian Institutes of Health Research/Canada -- Wellcome Trust/United Kingdom -- England -- Nature. 2011 Aug 31;478(7367):97-102. doi: 10.1038/nature10406.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Service of Medical Genetics, Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Aging ; Body Height/genetics ; *Body Mass Index ; Case-Control Studies ; Child ; Child, Preschool ; Chromosomes, Human, Pair 16/*genetics ; Cohort Studies ; Comparative Genomic Hybridization ; Developmental Disabilities/genetics ; Energy Metabolism/genetics ; Europe ; Female ; Gene Dosage/*genetics ; Gene Duplication/genetics ; Gene Expression Profiling ; Genetic Predisposition to Disease/genetics ; Genome-Wide Association Study ; Head/anatomy & histology ; Heterozygote ; Humans ; Infant ; Infant, Newborn ; Male ; Mental Disorders/genetics ; Middle Aged ; Mutation/genetics ; North America ; Obesity/*genetics ; *Phenotype ; RNA, Messenger/analysis/genetics ; Sequence Deletion/genetics ; Thinness/*genetics ; Transcription, Genetic ; Young Adult
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
    ISSN: 0223-5234
    Keywords: N-(aroyl)-N-(arylmethyloxy)glycine ; N-(arylsulfonyl)-N-(arylmethyloxy)glycine ; aldose reductase inhibitor
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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