keyword
MENU ▼
Read by QxMD icon Read
search

uk biobank

keyword
https://www.readbyqxmd.com/read/28095156/lung-cancer-risk-prediction-model-incorporating-lung-function-development-and-validation-in-the-uk-biobank-prospective-cohort-study
#1
David C Muller, Mattias Johansson, Paul Brennan
Purpose Several lung cancer risk prediction models have been developed, but none to date have assessed the predictive ability of lung function in a population-based cohort. We sought to develop and internally validate a model incorporating lung function using data from the UK Biobank prospective cohort study. Methods This analysis included 502,321 participants without a previous diagnosis of lung cancer, predominantly between 40 and 70 years of age. We used flexible parametric survival models to estimate the 2-year probability of lung cancer, accounting for the competing risk of death...
January 17, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28092683/case-control-association-mapping-by-proxy-using-family-history-of-disease
#2
Jimmy Z Liu, Yaniv Erlich, Joseph K Pickrell
Collecting cases for case-control genetic association studies can be time-consuming and expensive. In some situations (such as studies of late-onset or rapidly lethal diseases), it may be more practical to identify family members of cases. In randomly ascertained cohorts, replacing cases with their first-degree relatives enables studies of diseases that are absent (or nearly absent) in the cohort. We refer to this approach as genome-wide association study by proxy (GWAX) and apply it to 12 common diseases in 116,196 individuals from the UK Biobank...
January 16, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28077465/cost-effectiveness-of-the-polypill-versus-risk-assessment-for-prevention-of-cardiovascular-disease
#3
Bart S Ferket, M G Myriam Hunink, Mohammed Khanji, Isha Agarwal, Kirsten E Fleischmann, Steffen E Petersen
OBJECTIVE: There is an international trend towards recommending medication to prevent cardiovascular disease (CVD) in individuals at increasingly lower cardiovascular risk. We assessed the cost-effectiveness of a population approach with a polypill including a statin (simvastatin 20 mg) and three antihypertensive agents (amlodipine 2.5 mg, losartan 25 mg and hydrochlorothiazide 12.5 mg) and periodic risk assessment with different risk thresholds. METHODS: We developed a microsimulation model for lifetime predictions of CVD events, diabetes, and death in 259 146 asymptomatic UK Biobank participants aged 40-69 years...
January 11, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28075609/female-smokers-are-at-greater-risk-of-airflow-obstruction-than-male-smokers-uk-biobank
#4
André F S Amaral, David P Strachan, Peter Gj Burney, Deborah L Jarvis
The prevalence of chronic obstructive pulmonary disease (COPD) is increasing faster among women than among men. <br><br> Objectives: To examine sex differences in the risk of airflow obstruction (COPD hallmark) in relation to smoking history. <br><br> Methods: We analysed 149,075 women and 100,252 men taking part in the UK Biobank, who had provided spirometry measurements and information on smoking. The association of airflow obstruction with smoking characteristics was assessed, by sex, using regression analysis...
January 11, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28073954/gene-obesogenic-environment-interactions-in-the-uk-biobank-study
#5
Jessica Tyrrell, Andrew R Wood, Ryan M Ames, Hanieh Yaghootkar, Robin N Beaumont, Samuel E Jones, Marcus A Tuke, Katherine S Ruth, Rachel M Freathy, George Davey Smith, Stéphane Joost, Idris Guessous, Anna Murray, David P Strachan, Zoltán Kutalik, Michael N Weedon, Timothy M Frayling
BACKGROUND: Previous studies have suggested that modern obesogenic environments accentuate the genetic risk of obesity. However, these studies have proven controversial as to which, if any, measures of the environment accentuate genetic susceptibility to high body mass index (BMI). METHODS: We used up to 120 000 adults from the UK Biobank study to test the hypothesis that high-risk obesogenic environments and behaviours accentuate genetic susceptibility to obesity...
January 10, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28073953/commentary-mining-gene-lifestyle-interactions-in-uk-biobank-all-that-glitters-isn-t-gold
#6
Paul W Franks
No abstract text is available yet for this article.
January 10, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28056765/comparison-of-dna-quantification-methodology-used-in-the-dna-extraction-protocol-for-the-uk-biobank-cohort
#7
Samantha Welsh, Tim Peakman, Simon Sheard, Rachael Almond
BACKGROUND: UK Biobank is a large prospective cohort study in the UK established by the Medical Research Council (MRC) and the Wellcome Trust to enable approved researchers to investigate the role of genetic factors, environmental exposures and lifestyle in the causes of major diseases of late and middle age. A wide range of phenotypic data has been collected at recruitment and has recently been enhanced by the UK Biobank Genotyping Project. All UK Biobank participants (500,000) have been genotyped on either the UK Biobank Axiom® Array or the Affymetrix UK BiLEVE Axiom® Array and the workflow for preparing samples for genotyping is described...
January 5, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28040731/quantifying-the-extent-to-which-index-event-biases-influence-large-genetic-association-studies
#8
Hanieh Yaghootkar, Michael P Bancks, Sam E Jones, Aaron McDaid, Robin Beaumont, Louise Donnelly, Andrew R Wood, Archie Campbell, Jessica Tyrrell, Lynne J Hocking, Marcus A Tuke, Katherine S Ruth, Ewan R Pearson, Anna Murray, Rachel M Freathy, Patricia B Munroe, Caroline Hayward, Colin Palmer, Michael N Weedon, James S Pankow, Timothy M Frayling, Zoltán Kutalik
As genetic association studies increase in size to 100,000s of individuals, subtle biases may influence conclusions. One possible bias is "index event bias" (IEB) that appears due to the stratification by, or enrichment for, disease status when testing associations between genetic variants and a disease-associated trait. We aimed to test the extent to which IEB influences some known trait associations in a range of study designs and provide a statistical framework for assessing future associations. Analysing data from 113,203 non-diabetic UK Biobank participants, we observed three (near TCF7L2, CDKN2AB and CDKAL1) overestimated (BMI-decreasing) and one (near MTNR1B) underestimated (BMI-increasing) associations among 11 type 2 diabetes risk alleles (at P < 0...
December 30, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/27992416/genome-wide-association-analyses-of-sleep-disturbance-traits-identify-new-loci-and-highlight-shared-genetics-with-neuropsychiatric-and-metabolic-traits
#9
Jacqueline M Lane, Jingjing Liang, Irma Vlasac, Simon G Anderson, David A Bechtold, Jack Bowden, Richard Emsley, Shubhroz Gill, Max A Little, Annemarie I Luik, Andrew Loudon, Frank A J L Scheer, Shaun M Purcell, Simon D Kyle, Deborah A Lawlor, Xiaofeng Zhu, Susan Redline, David W Ray, Martin K Rutter, Richa Saxena
Chronic sleep disturbances, associated with cardiometabolic diseases, psychiatric disorders and all-cause mortality, affect 25-30% of adults worldwide. Although environmental factors contribute substantially to self-reported habitual sleep duration and disruption, these traits are heritable and identification of the genes involved should improve understanding of sleep, mechanisms linking sleep to disease and development of new therapies. We report single- and multiple-trait genome-wide association analyses of self-reported sleep duration, insomnia symptoms and excessive daytime sleepiness in the UK Biobank (n = 112,586)...
December 19, 2016: Nature Genetics
https://www.readbyqxmd.com/read/27989777/hand-classification-of-fmri-ica-noise-components
#10
Ludovica Griffanti, Gwenaëlle Douaud, Janine Bijsterbosh, Stefania Evangelisti, Fidel Alfaro-Almagro, Matthew F Glasser, Eugene P Duff, Sean Fitzgibbon, Robert Westphal, Davide Carone, Christian F Beckmann, Stephen M Smith
We present a practical "how-to" guide to help determine whether single-subject fMRI independent components (ICs) characterise structured noise or not. Manual identification of signal and noise after ICA decomposition is required for efficient data denoising: to train supervised algorithms, to check the results of unsupervised ones or to manually clean the data. In this paper we describe the main spatial and temporal features of ICs and provide general guidelines on how to evaluate these. Examples of signal and noise components are provided from a wide range of datasets (3T data, including examples from the UK Biobank and the Human Connectome Project, and 7T data), together with practical guidelines for their identification...
December 16, 2016: NeuroImage
https://www.readbyqxmd.com/read/27976682/ageing-and-brain-white-matter-structure-in-3-513-uk-biobank-participants
#11
Simon R Cox, Stuart J Ritchie, Elliot M Tucker-Drob, David C Liewald, Saskia P Hagenaars, Gail Davies, Joanna M Wardlaw, Catharine R Gale, Mark E Bastin, Ian J Deary
Quantifying the microstructural properties of the human brain's connections is necessary for understanding normal ageing and disease. Here we examine brain white matter magnetic resonance imaging (MRI) data in 3,513 generally healthy people aged 44.64-77.12 years from the UK Biobank. Using conventional water diffusion measures and newer, rarely studied indices from neurite orientation dispersion and density imaging, we document large age associations with white matter microstructure. Mean diffusivity is the most age-sensitive measure, with negative age associations strongest in the thalamic radiation and association fibres...
December 15, 2016: Nature Communications
https://www.readbyqxmd.com/read/27973677/occupational-self-coding-and-automatic-recording-oscar-a-novel-web-based-tool-to-collect-and-code-lifetime-job-histories-in-large-population-based-studies
#12
Sara De Matteis, Deborah Jarvis, Heather Young, Alan Young, Naomi Allen, James Potts, Andrew Darnton, Lesley Rushton, Paul Cullinan
Objectives The standard approach to the assessment of occupational exposures is through the manual collection and coding of job histories. This method is time-consuming and costly and makes it potentially unfeasible to perform high quality analyses on occupational exposures in large population-based studies. Our aim was to develop a novel, efficient web-based tool to collect and code lifetime job histories in the UK Biobank, a population-based cohort of over 500 000 participants. Methods We developed OSCAR (occupations self-coding automatic recording) based on the hierarchical structure of the UK Standard Occupational Classification (SOC) 2000, which allows individuals to collect and automatically code their lifetime job histories via a simple decision-tree model...
December 14, 2016: Scandinavian Journal of Work, Environment & Health
https://www.readbyqxmd.com/read/27959336/molecular-genetic-aetiology-of-general-cognitive-function-is-enriched-in-evolutionarily-conserved-regions
#13
W D Hill, G Davies, S E Harris, S P Hagenaars, D C Liewald, L Penke, C R Gale, I J Deary
Differences in general cognitive function have been shown to be partly heritable and to show genetic correlations with several psychiatric and physical disease states. However, to date, few single-nucleotide polymorphisms (SNPs) have demonstrated genome-wide significance, hampering efforts aimed at determining which genetic variants are most important for cognitive function and which regions drive the genetic associations between cognitive function and disease states. Here, we combine multiple large genome-wide association study (GWAS) data sets, from the CHARGE cognitive consortium (n=53 949) and UK Biobank (n=36 035), to partition the genome into 52 functional annotations and an additional 10 annotations describing tissue-specific histone marks...
December 13, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27903560/commonly-prescribed-drugs-associate-with-cognitive-function-a-cross-sectional-study-in-uk-biobank
#14
Alejo J Nevado-Holgado, Chi-Hun Kim, Laura Winchester, John Gallacher, Simon Lovestone
OBJECTIVE: To investigate medications associated with cognitive function. DESIGN: Population-based cross-sectional cohort study. SETTING: UK Biobank. PARTICIPANTS: UK Biobank participants aged 37-73 years who completed cognitive tests at the baseline visit in 2006-2010. MAIN OUTCOME MEASURES: Cognitive test outcomes on verbal-numerical reasoning test (n=165 493), memory test (n=482 766) and reaction time test (n=496 813)...
November 30, 2016: BMJ Open
https://www.readbyqxmd.com/read/27876820/a-method-to-customize-population-specific-arrays-for-genome-wide-association-testing
#15
Erik A Ehli, Abdel Abdellaoui, Iryna O Fedko, Charlie Grieser, Sahar Nohzadeh-Malakshah, Gonneke Willemsen, Eco Jc de Geus, Dorret I Boomsma, Gareth E Davies, Jouke J Hottenga
As an example of optimizing population-specific genotyping assays using a whole-genome sequence reference set, we detail the approach that followed to design the Axiom-NL array which is characterized by an improved imputation backbone based on the Genome of the Netherlands (GoNL) reference sequence and, compared with earlier arrays, a more comprehensive inclusion of SNPs on chromosomes X, Y, and the mitochondria. Common variants on the array were selected to be compatible with the Illumina Psych Array and the Affymetrix UK Biobank Axiom array...
November 23, 2016: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/27864402/molecular-genetic-contributions-to-self-rated-health
#16
Sarah E Harris, Saskia P Hagenaars, Gail Davies, W David Hill, David C M Liewald, Stuart J Ritchie, Riccardo E Marioni, Cathie L M Sudlow, Joanna M Wardlaw, Andrew M McIntosh, Catharine R Gale, Ian J Deary
BACKGROUND: Poorer self-rated health (SRH) predicts worse health outcomes, even when adjusted for objective measures of disease at time of rating. Twin studies indicate SRH has a heritability of up to 60% and that its genetic architecture may overlap with that of personality and cognition. METHODS: We carried out a genome-wide association study (GWAS) of SRH on 111 749 members of the UK Biobank sample. Univariate genome-wide complex trait analysis (GCTA)-GREML analyses were used to estimate the proportion of variance explained by all common autosomal single nucleotide polymorphisms (SNPs) for SRH...
November 17, 2016: International Journal of Epidemiology
https://www.readbyqxmd.com/read/27863252/the-allelic-landscape-of-human-blood-cell-trait-variation-and-links-to-common-complex-disease
#17
William J Astle, Heather Elding, Tao Jiang, Dave Allen, Dace Ruklisa, Alice L Mann, Daniel Mead, Heleen Bouman, Fernando Riveros-Mckay, Myrto A Kostadima, John J Lambourne, Suthesh Sivapalaratnam, Kate Downes, Kousik Kundu, Lorenzo Bomba, Kim Berentsen, John R Bradley, Louise C Daugherty, Olivier Delaneau, Kathleen Freson, Stephen F Garner, Luigi Grassi, Jose Guerrero, Matthias Haimel, Eva M Janssen-Megens, Anita Kaan, Mihir Kamat, Bowon Kim, Amit Mandoli, Jonathan Marchini, Joost H A Martens, Stuart Meacham, Karyn Megy, Jared O'Connell, Romina Petersen, Nilofar Sharifi, Simon M Sheard, James R Staley, Salih Tuna, Martijn van der Ent, Klaudia Walter, Shuang-Yin Wang, Eleanor Wheeler, Steven P Wilder, Valentina Iotchkova, Carmel Moore, Jennifer Sambrook, Hendrik G Stunnenberg, Emanuele Di Angelantonio, Stephen Kaptoge, Taco W Kuijpers, Enrique Carrillo-de-Santa-Pau, David Juan, Daniel Rico, Alfonso Valencia, Lu Chen, Bing Ge, Louella Vasquez, Tony Kwan, Diego Garrido-Martín, Stephen Watt, Ying Yang, Roderic Guigo, Stephan Beck, Dirk S Paul, Tomi Pastinen, David Bujold, Guillaume Bourque, Mattia Frontini, John Danesh, David J Roberts, Willem H Ouwehand, Adam S Butterworth, Nicole Soranzo
Many common variants have been associated with hematological traits, but identification of causal genes and pathways has proven challenging. We performed a genome-wide association analysis in the UK Biobank and INTERVAL studies, testing 29.5 million genetic variants for association with 36 red cell, white cell, and platelet properties in 173,480 European-ancestry participants. This effort yielded hundreds of low frequency (<5%) and rare (<1%) variants with a strong impact on blood cell phenotypes. Our data highlight general properties of the allelic architecture of complex traits, including the proportion of the heritable component of each blood trait explained by the polygenic signal across different genome regulatory domains...
November 17, 2016: Cell
https://www.readbyqxmd.com/read/27855737/genetic-basis-of-chronotype-in-humans-insights-from-three-landmark-gwas
#18
David A Kalmbach, Logan D Schneider, Joseph Cheung, Sarah J Bertrand, Thiruchelvam Kariharan, Allan I Pack, Philip R Gehrman
Chronotype, or diurnal preference, refers to behavioral manifestations of the endogenous circadian system that governs preferred timing of sleep and wake. As variations in circadian timing and system perturbations are linked to disease development, the fundamental biology of chronotype has received attention for its role in the regulation and dysregulation of sleep and related medical and psychiatric illnesses. Twin and family studies have shown that chronotype is a heritable trait, thus directing attention toward its genetic basis...
October 28, 2016: Sleep
https://www.readbyqxmd.com/read/27824608/ambient-air-pollution-traffic-noise-and-adult-asthma-prevalence-a-bioshare-approach
#19
Yutong Cai, Wilma L Zijlema, Dany Doiron, Marta Blangiardo, Paul R Burton, Isabel Fortier, Amadou Gaye, John Gulliver, Kees de Hoogh, Kristian Hveem, Stéphane Mbatchou, David W Morley, Ronald P Stolk, Paul Elliott, Anna L Hansell, Susan Hodgson
We investigated the effects of both ambient air pollution and traffic noise on adult asthma prevalence, using harmonised data from three European cohort studies established in 2006-2013 (HUNT3, Lifelines and UK Biobank).Residential exposures to ambient air pollution (particulate matter with aerodynamic diameter ≤10 µm (PM10) and nitrogen dioxide (NO2)) were estimated by a pan-European Land Use Regression model for 2007. Traffic noise for 2009 was modelled at home addresses by adapting a standardised noise assessment framework (CNOSSOS-EU)...
October 20, 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/27818178/molecular-genetic-contributions-to-social-deprivation-and-household-income-in-uk-biobank
#20
W David Hill, Saskia P Hagenaars, Riccardo E Marioni, Sarah E Harris, David C M Liewald, Gail Davies, Aysu Okbay, Andrew M McIntosh, Catharine R Gale, Ian J Deary
Individuals with lower socio-economic status (SES) are at increased risk of physical and mental illnesses and tend to die at an earlier age [1-3]. Explanations for the association between SES and health typically focus on factors that are environmental in origin [4]. However, common SNPs have been found collectively to explain around 18% of the phenotypic variance of an area-based social deprivation measure of SES [5]. Molecular genetic studies have also shown that common physical and psychiatric diseases are partly heritable [6]...
November 21, 2016: Current Biology: CB
keyword
keyword
44565
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"