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https://www.readbyqxmd.com/read/28784785/effects-of-maternal-investment-temperament-and-cognition-on-guide-dog-success
#1
Emily E Bray, Mary D Sammel, Dorothy L Cheney, James A Serpell, Robert M Seyfarth
A continuing debate in studies of social development in both humans and other animals is the extent to which early life experiences affect adult behavior. Also unclear are the relative contributions of cognitive skills ("intelligence") and temperament for successful outcomes. Guide dogs are particularly suited to research on these questions. To succeed as a guide dog, individuals must accomplish complex navigation and decision making without succumbing to distractions and unforeseen obstacles. Faced with these rigorous demands, only ∼70% of dogs that enter training ultimately achieve success...
August 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28770860/crispr-fixes-disease-gene-in-viable-human-embryos
#2
Heidi Ledford
No abstract text is available yet for this article.
August 2, 2017: Nature
https://www.readbyqxmd.com/read/28650483/disease-model-discovery-from-3-328-gene-knockouts-by-the-international-mouse-phenotyping-consortium
#3
Terrence F Meehan, Nathalie Conte, David B West, Julius O Jacobsen, Jeremy Mason, Jonathan Warren, Chao-Kung Chen, Ilinca Tudose, Mike Relac, Peter Matthews, Natasha Karp, Luis Santos, Tanja Fiegel, Natalie Ring, Henrik Westerberg, Simon Greenaway, Duncan Sneddon, Hugh Morgan, Gemma F Codner, Michelle E Stewart, James Brown, Neil Horner, Melissa Haendel, Nicole Washington, Christopher J Mungall, Corey L Reynolds, Juan Gallegos, Valerie Gailus-Durner, Tania Sorg, Guillaume Pavlovic, Lynette R Bower, Mark Moore, Iva Morse, Xiang Gao, Glauco P Tocchini-Valentini, Yuichi Obata, Soo Young Cho, Je Kyung Seong, John Seavitt, Arthur L Beaudet, Mary E Dickinson, Yann Herault, Wolfgang Wurst, Martin Hrabe de Angelis, K C Kent Lloyd, Ann M Flenniken, Lauryl M J Nutter, Susan Newbigging, Colin McKerlie, Monica J Justice, Stephen A Murray, Karen L Svenson, Robert E Braun, Jacqueline K White, Allan Bradley, Paul Flicek, Sara Wells, William C Skarnes, David J Adams, Helen Parkinson, Ann-Marie Mallon, Steve D M Brown, Damian Smedley
Although next-generation sequencing has revolutionized the ability to associate variants with human diseases, diagnostic rates and development of new therapies are still limited by a lack of knowledge of the functions and pathobiological mechanisms of most genes. To address this challenge, the International Mouse Phenotyping Consortium is creating a genome- and phenome-wide catalog of gene function by characterizing new knockout-mouse strains across diverse biological systems through a broad set of standardized phenotyping tests...
August 2017: Nature Genetics
https://www.readbyqxmd.com/read/28604731/genome-wide-association-analysis-of-insomnia-complaints-identifies-risk-genes-and-genetic-overlap-with-psychiatric-and-metabolic-traits
#4
Anke R Hammerschlag, Sven Stringer, Christiaan A de Leeuw, Suzanne Sniekers, Erdogan Taskesen, Kyoko Watanabe, Tessa F Blanken, Kim Dekker, Bart H W Te Lindert, Rick Wassing, Ingileif Jonsdottir, Gudmar Thorleifsson, Hreinn Stefansson, Thorarinn Gislason, Klaus Berger, Barbara Schormair, Juergen Wellmann, Juliane Winkelmann, Kari Stefansson, Konrad Oexle, Eus J W Van Someren, Danielle Posthuma
Persistent insomnia is among the most frequent complaints in general practice. To identify genetic factors for insomnia complaints, we performed a genome-wide association study (GWAS) and a genome-wide gene-based association study (GWGAS) in 113,006 individuals. We identify three loci and seven genes associated with insomnia complaints, with the associations for one locus and five genes supported by joint analysis with an independent sample (n = 7,565). Our top association (MEIS1, P < 5 × 10(-8)) has previously been implicated in restless legs syndrome (RLS)...
June 12, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28530673/genome-wide-association-meta-analysis-of-78-308-individuals-identifies-new-loci-and-genes-influencing-human-intelligence
#5
Suzanne Sniekers, Sven Stringer, Kyoko Watanabe, Philip R Jansen, Jonathan R I Coleman, Eva Krapohl, Erdogan Taskesen, Anke R Hammerschlag, Aysu Okbay, Delilah Zabaneh, Najaf Amin, Gerome Breen, David Cesarini, Christopher F Chabris, William G Iacono, M Arfan Ikram, Magnus Johannesson, Philipp Koellinger, James J Lee, Patrik K E Magnusson, Matt McGue, Mike B Miller, William E R Ollier, Antony Payton, Neil Pendleton, Robert Plomin, Cornelius A Rietveld, Henning Tiemeier, Cornelia M van Duijn, Danielle Posthuma
Intelligence is associated with important economic and health-related life outcomes. Despite intelligence having substantial heritability (0.54) and a confirmed polygenic nature, initial genetic studies were mostly underpowered. Here we report a meta-analysis for intelligence of 78,308 individuals. We identify 336 associated SNPs (METAL P < 5 × 10(-8)) in 18 genomic loci, of which 15 are new. Around half of the SNPs are located inside a gene, implicating 22 genes, of which 11 are new findings. Gene-based analyses identified an additional 30 genes (MAGMA P < 2...
July 2017: Nature Genetics
https://www.readbyqxmd.com/read/28530653/structure-of-a-pre-catalytic-spliceosome
#6
Clemens Plaschka, Pei-Chun Lin, Kiyoshi Nagai
Intron removal requires assembly of the spliceosome on precursor mRNA (pre-mRNA) and extensive remodelling to form the spliceosome's catalytic centre. Here we report the cryo-electron microscopy structure of the yeast Saccharomyces cerevisiae pre-catalytic B complex spliceosome at near-atomic resolution. The mobile U2 small nuclear ribonucleoprotein particle (snRNP) associates with U4/U6.U5 tri-snRNP through the U2/U6 helix II and an interface between U4/U6 di-snRNP and the U2 snRNP SF3b-containing domain, which also transiently contacts the helicase Brr2...
June 29, 2017: Nature
https://www.readbyqxmd.com/read/28495876/a-subcellular-map-of-the-human-proteome
#7
Peter J Thul, Lovisa Åkesson, Mikaela Wiking, Diana Mahdessian, Aikaterini Geladaki, Hammou Ait Blal, Tove Alm, Anna Asplund, Lars Björk, Lisa M Breckels, Anna Bäckström, Frida Danielsson, Linn Fagerberg, Jenny Fall, Laurent Gatto, Christian Gnann, Sophia Hober, Martin Hjelmare, Fredric Johansson, Sunjae Lee, Cecilia Lindskog, Jan Mulder, Claire M Mulvey, Peter Nilsson, Per Oksvold, Johan Rockberg, Rutger Schutten, Jochen M Schwenk, Åsa Sivertsson, Evelina Sjöstedt, Marie Skogs, Charlotte Stadler, Devin P Sullivan, Hanna Tegel, Casper Winsnes, Cheng Zhang, Martin Zwahlen, Adil Mardinoglu, Fredrik Pontén, Kalle von Feilitzen, Kathryn S Lilley, Mathias Uhlén, Emma Lundberg
Resolving the spatial distribution of the human proteome at a subcellular level can greatly increase our understanding of human biology and disease. Here we present a comprehensive image-based map of subcellular protein distribution, the Cell Atlas, built by integrating transcriptomics and antibody-based immunofluorescence microscopy with validation by mass spectrometry. Mapping the in situ localization of 12,003 human proteins at a single-cell level to 30 subcellular structures enabled the definition of the proteomes of 13 major organelles...
May 26, 2017: Science
https://www.readbyqxmd.com/read/28239752/potential-and-limitations-of-cochrane-reviews-in-pediatric-cardiology-a-systematic-analysis
#8
Martin Poryo, Sara Khosrawikatoli, Hashim Abdul-Khaliq, Sascha Meyer
Evidence-based medicine has contributed substantially to the quality of medical care in pediatric and adult cardiology. However, our impression from the bedside is that a substantial number of Cochrane reviews generate inconclusive data that are of limited clinical benefit. We performed a systematic synopsis of Cochrane reviews published between 2001 and 2015 in the field of pediatric cardiology. Main outcome parameters were the number and percentage of conclusive, partly conclusive, and inconclusive reviews as well as their recommendations and their development over three a priori defined intervals...
April 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28254836/optimizing-a-drone-network-to-deliver-automated-external-defibrillators
#9
Justin J Boutilier, Steven C Brooks, Alyf Janmohamed, Adam Byers, Jason E Buick, Cathy Zhan, Angela P Schoellig, Sheldon Cheskes, Laurie J Morrison, Timothy C Y Chan
BACKGROUND: Public access defibrillation programs can improve survival after out-of-hospital cardiac arrest, but automated external defibrillators (AEDs) are rarely available for bystander use at the scene. Drones are an emerging technology that can deliver an AED to the scene of an out-of-hospital cardiac arrest for bystander use. We hypothesize that a drone network designed with the aid of a mathematical model combining both optimization and queuing can reduce the time to AED arrival...
June 20, 2017: Circulation
https://www.readbyqxmd.com/read/28241135/an-atlas-of-human-long-non-coding-rnas-with-accurate-5-ends
#10
Chung-Chau Hon, Jordan A Ramilowski, Jayson Harshbarger, Nicolas Bertin, Owen J L Rackham, Julian Gough, Elena Denisenko, Sebastian Schmeier, Thomas M Poulsen, Jessica Severin, Marina Lizio, Hideya Kawaji, Takeya Kasukawa, Masayoshi Itoh, A Maxwell Burroughs, Shohei Noma, Sarah Djebali, Tanvir Alam, Yulia A Medvedeva, Alison C Testa, Leonard Lipovich, Chi-Wai Yip, Imad Abugessaisa, Mickaël Mendez, Akira Hasegawa, Dave Tang, Timo Lassmann, Peter Heutink, Magda Babina, Christine A Wells, Soichi Kojima, Yukio Nakamura, Harukazu Suzuki, Carsten O Daub, Michiel J L de Hoon, Erik Arner, Yoshihide Hayashizaki, Piero Carninci, Alistair R R Forrest
Long non-coding RNAs (lncRNAs) are largely heterogeneous and functionally uncharacterized. Here, using FANTOM5 cap analysis of gene expression (CAGE) data, we integrate multiple transcript collections to generate a comprehensive atlas of 27,919 human lncRNA genes with high-confidence 5' ends and expression profiles across 1,829 samples from the major human primary cell types and tissues. Genomic and epigenomic classification of these lncRNAs reveals that most intergenic lncRNAs originate from enhancers rather than from promoters...
March 9, 2017: Nature
https://www.readbyqxmd.com/read/28230125/seven-temperate-terrestrial-planets-around-the-nearby-ultracool-dwarf-star-trappist-1
#11
Michaël Gillon, Amaury H M J Triaud, Brice-Olivier Demory, Emmanuël Jehin, Eric Agol, Katherine M Deck, Susan M Lederer, Julien de Wit, Artem Burdanov, James G Ingalls, Emeline Bolmont, Jeremy Leconte, Sean N Raymond, Franck Selsis, Martin Turbet, Khalid Barkaoui, Adam Burgasser, Matthew R Burleigh, Sean J Carey, Aleksander Chaushev, Chris M Copperwheat, Laetitia Delrez, Catarina S Fernandes, Daniel L Holdsworth, Enrico J Kotze, Valérie Van Grootel, Yaseen Almleaky, Zouhair Benkhaldoun, Pierre Magain, Didier Queloz
One aim of modern astronomy is to detect temperate, Earth-like exoplanets that are well suited for atmospheric characterization. Recently, three Earth-sized planets were detected that transit (that is, pass in front of) a star with a mass just eight per cent that of the Sun, located 12 parsecs away. The transiting configuration of these planets, combined with the Jupiter-like size of their host star-named TRAPPIST-1-makes possible in-depth studies of their atmospheric properties with present-day and future astronomical facilities...
February 22, 2017: Nature
https://www.readbyqxmd.com/read/27939315/a-feathered-dinosaur-tail-with-primitive-plumage-trapped-in-mid-cretaceous-amber
#12
Lida Xing, Ryan C McKellar, Xing Xu, Gang Li, Ming Bai, W Scott Persons, Tetsuto Miyashita, Michael J Benton, Jianping Zhang, Alexander P Wolfe, Qiru Yi, Kuowei Tseng, Hao Ran, Philip J Currie
In the two decades since the discovery of feathered dinosaurs [1-3], the range of plumage known from non-avialan theropods has expanded significantly, confirming several features predicted by developmentally informed models of feather evolution [4-10]. However, three-dimensional feather morphology and evolutionary patterns remain difficult to interpret, due to compression in sedimentary rocks [9, 11]. Recent discoveries in Cretaceous amber from Canada, France, Japan, Lebanon, Myanmar, and the United States [12-18] reveal much finer levels of structural detail, but taxonomic placement is uncertain because plumage is rarely associated with identifiable skeletal material [14]...
December 19, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/27973993/-zombie-outbreak-caused-by-the-synthetic-cannabinoid-amb-fubinaca-in-new-york
#13
Axel J Adams, Samuel D Banister, Lisandro Irizarry, Jordan Trecki, Michael Schwartz, Roy Gerona
BACKGROUND: New psychoactive substances constitute a growing and dynamic class of abused drugs in the United States. On July 12, 2016, a synthetic cannabinoid caused mass intoxication of 33 persons in one New York City neighborhood, in an event described in the popular press as a "zombie" outbreak because of the appearance of the intoxicated persons. METHODS: We obtained and tested serum, whole blood, and urine samples from 8 patients among the 18 who were transported to local hospitals; we also tested a sample of the herbal "incense" product "AK-47 24 Karat Gold," which was implicated in the outbreak...
January 19, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/27934765/zika-virus-produces-noncoding-rnas-using-a-multi-pseudoknot-structure-that-confounds-a-cellular-exonuclease
#14
Benjamin M Akiyama, Hannah M Laurence, Aaron R Massey, David A Costantino, Xuping Xie, Yujiao Yang, Pei-Yong Shi, Jay C Nix, J David Beckham, Jeffrey S Kieft
The outbreak of Zika virus (ZIKV) and associated fetal microcephaly mandates efforts to understand the molecular processes of infection. Related flaviviruses produce noncoding subgenomic flaviviral RNAs (sfRNAs) that are linked to pathogenicity in fetal mice. These viruses make sfRNAs by co-opting a cellular exonuclease via structured RNAs called xrRNAs. We found that ZIKV-infected monkey and human epithelial cells, mouse neurons, and mosquito cells produce sfRNAs. The RNA structure that is responsible for ZIKV sfRNA production forms a complex fold that is likely found in many pathogenic flaviviruses...
December 2, 2016: Science
https://www.readbyqxmd.com/read/27905412/planetary-science-pluto-s-telltale-heart
#15
COMMENT
Amy C Barr
No abstract text is available yet for this article.
November 30, 2016: Nature
https://www.readbyqxmd.com/read/27738015/detection-of-human-adaptation-during-the-past-2000-years
#16
Yair Field, Evan A Boyle, Natalie Telis, Ziyue Gao, Kyle J Gaulton, David Golan, Loic Yengo, Ghislain Rocheleau, Philippe Froguel, Mark I McCarthy, Jonathan K Pritchard
Detection of recent natural selection is a challenging problem in population genetics. Here we introduce the singleton density score (SDS), a method to infer very recent changes in allele frequencies from contemporary genome sequences. Applied to data from the UK10K Project, SDS reflects allele frequency changes in the ancestors of modern Britons during the past ~2000 to 3000 years. We see strong signals of selection at lactase and the major histocompatibility complex, and in favor of blond hair and blue eyes...
November 11, 2016: Science
https://www.readbyqxmd.com/read/27651369/high-g-force-rollercoaster-rides-induce-sinus-tachycardia-but-no-cardiac-arrhythmias-in-healthy-children
#17
Guido E Pieles, Victoria Husk, Teresa Blackwell, Deirdre Wilson, Simon M Collin, Craig A Williams, A Graham Stuart
Theme park operators and medical professionals advise children with heart conditions against using rollercoaster rides, but these recommendations are not evidence-based. The underlying assumption is that the combination of adrenergic stimulation through stress and acceleration might trigger arrhythmias in susceptible individuals. We conducted a cross-sectional observational study to assess heart rate and rhythm in healthy children during commercial rollercoaster rides. Twenty healthy children (9 male) aged 11-15 (mean 13...
January 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/27580034/rapid-emergence-of-life-shown-by-discovery-of-3-700-million-year-old-microbial-structures
#18
Allen P Nutman, Vickie C Bennett, Clark R L Friend, Martin J Van Kranendonk, Allan R Chivas
Biological activity is a major factor in Earth's chemical cycles, including facilitating CO2 sequestration and providing climate feedbacks. Thus a key question in Earth's evolution is when did life arise and impact hydrosphere-atmosphere-lithosphere chemical cycles? Until now, evidence for the oldest life on Earth focused on debated stable isotopic signatures of 3,800-3,700 million year (Myr)-old metamorphosed sedimentary rocks and minerals from the Isua supracrustal belt (ISB), southwest Greenland. Here we report evidence for ancient life from a newly exposed outcrop of 3,700-Myr-old metacarbonate rocks in the ISB that contain 1-4-cm-high stromatolites-macroscopically layered structures produced by microbial communities...
September 22, 2016: Nature
https://www.readbyqxmd.com/read/27462056/watching-television-and-risk-of-mortality-from-pulmonary-embolism-among-japanese-men-and-women-the-jacc-study-japan-collaborative-cohort
#19
Toru Shirakawa, Hiroyasu Iso, Kazumasa Yamagishi, Hiroshi Yatsuya, Naohito Tanabe, Satoyo Ikehara, Shigekazu Ukawa, Akiko Tamakoshi
No abstract text is available yet for this article.
July 26, 2016: Circulation
https://www.readbyqxmd.com/read/27303055/discovery-of-the-interstellar-chiral-molecule-propylene-oxide-ch%C3%A2-chch%C3%A2-o
#20
Brett A McGuire, P Brandon Carroll, Ryan A Loomis, Ian A Finneran, Philip R Jewell, Anthony J Remijan, Geoffrey A Blake
Life on Earth relies on chiral molecules-that is, species not superimposable on their mirror images. This manifests itself in the selection of a single molecular handedness, or homochirality, across the biosphere. We present the astronomical detection of a chiral molecule, propylene oxide (CH3CHCH2O), in absorption toward the Galactic center. Propylene oxide is detected in the gas phase in a cold, extended molecular shell around the embedded, massive protostellar clusters in the Sagittarius B2 star-forming region...
June 17, 2016: Science
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