{"id":12155,"date":"2017-06-29T15:34:24","date_gmt":"2017-06-29T15:34:24","guid":{"rendered":"https:\/\/genomecanada.ca\/drupal\/news_release\/inflammatory-bowel-disease-scientists-zoom-genetic-culprits-2\/"},"modified":"2017-06-29T15:34:24","modified_gmt":"2017-06-29T15:34:24","slug":"inflammatory-bowel-disease-scientists-zoom-genetic-culprits-2","status":"publish","type":"post","link":"https:\/\/genomecanada.ca\/fr\/inflammatory-bowel-disease-scientists-zoom-genetic-culprits-2\/","title":{"rendered":"Inflammatory Bowel Disease: Scientists Zoom in on Genetic Culprits"},"content":{"rendered":"<p><span style=\"color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 12.8px;\">(en anglais seulement)<\/span><\/p>\n<p>Montreal scientists and their international colleagues have closed in on specific genes responsible for Inflammatory Bowel Disease (IBD) from a list of over 600 genes that were suspects for the disease. Professor John D. Rioux and his team at the Montreal Heart Institute and Universit\u00e9 de Montr\u00e9al, along with their colleagues with the International IBD Genetics Consortium, which brings together over 100 geneticists, gastroenterologists, and other researchers, combined efforts to produce a high resolution map to investigate which genetic variants have a causal role in the disease.<\/p>\n<p>In the new study, published today (28 June) in&nbsp;<em>Nature,&nbsp;<\/em>scientists examined the genome of 67,852 individuals and applied three statistical methods to zoom in on which genetic variants were actively implicated in the disease. Of the 94 regions of the genome associated with IBD that were studied, 18 could be pin-pointed to a single genetic variant with more than 95 per cent certainty. The results form a basis for more effective prescription of current treatments for the disease as well as the discovery of new drug targets.<\/p>\n<p>More than 230,000 people suffer from IBD in the Canada, with approximately 10,000 new cases a year and resulting in annual economic costs of $2.8 billion. IBD is a debilitating disease in which the body\u2019s own immune system attacks parts of the digestive tract. The exact causes of this disease are unclear, and there currently is no cure. \u201cOne of the most frustrating things for people living with Crohn\u2019s or colitis is that they don\u2019t know what triggered their disease in the first place,\u201d says Mina Mawani, President and CEO of Crohn\u2019s and Colitis Canada. \u201cThis study helps narrow down some of the genetic elements at play, and we\u2019re hopeful that better understanding leads to better treatments, and ultimately, cures for these debilitating diseases.\u201d<\/p>\n<p>To understand more about the genetics underlying IBD, researchers have conducted genome wide association studies and previously found genetic variants in over 200 regions of the human genome linked to the disease. However, it was not certain which specific genes were actually implicated by those variants.<\/p>\n<p>Dr Jeffrey Barrett, joint lead author from the Wellcome Trust Sanger Institute said: \u201cWe have taken the biggest ever data set for IBD and applied careful statistics to narrow down to the individual genetic variants involved. Now we have a clearer picture of which genes do and do not play a role in the disease. We are zooming in on the genetic culprits of IBD.\u201d<\/p>\n<p>The high resolution map of the disease enabled scientists to see which variants directly influence disease, and to separate them from other variants which happen to be located near each other in the genome.<\/p>\n<p>Dr Hailiang Huang, first author from the Massachusetts General Hospital and Broad Institute said: \u201cAn issue with studying complex diseases is that it can be hard to move from genetic variants to knowing exactly which genes are involved. We need to be careful in deciding when we are sure we have the right gene. This new technique helps us to pinpoint which genetic variants are implicated in IBD with greater confidence.\u201d<\/p>\n<p>Professor Rioux, said: \u201cThis is a great step forward for IBD research. We are already using these results to focus our efforts to systematically use genetic discoveries to drive the development of biomarkers that predict response to therapy in IBD, with the aim of getting the right medication to each individual patient in the most efficient way to increase therapeutic benefits and decrease risks associated with treatments\u201d.<\/p>\n<p>Professor Rioux is the holder of the Canada Research Chair in Genetics and Genomic Medicine. His work as part of this study was funded by grants from the National Institute of Diabetes and Digestive Kidney Diseases grants DK064869 and DK062432, CIHR GPG 102170 from the Canadian Institutes of Health, GPH-129341 from Genome Canada and G\u00e9nome Qu\u00e9bec, and Crohn\u2019s and Colitis Canada.&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>(en anglais seulement) Montreal scientists and their international colleagues have closed in on specific genes responsible for Inflammatory Bowel Disease (IBD) from a list of over 600 genes that were suspects for the disease. Professor John D. Rioux and his team at the Montreal Heart Institute and Universit\u00e9 de Montr\u00e9al, along with their colleagues with [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[127],"tags":[],"mission-categories":[],"class_list":["post-12155","post","type-post","status-publish","format-standard","hentry","category-news-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Inflammatory Bowel Disease: Scientists Zoom in on Genetic Culprits - GenomeCanada<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/genomecanada.ca\/fr\/inflammatory-bowel-disease-scientists-zoom-genetic-culprits-2\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Inflammatory Bowel Disease: Scientists Zoom in on Genetic Culprits - GenomeCanada\" \/>\n<meta property=\"og:description\" content=\"(en anglais seulement) Montreal scientists and their international colleagues have closed in on specific genes responsible for Inflammatory Bowel Disease (IBD) from a list of over 600 genes that were suspects for the disease. 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