نتایج جستجو برای: allele sharing ibd

تعداد نتایج: 242518  

2016
Rachel L Randell Ajay S Gulati Suzanne F Cook Christopher F Martin Wenli Chen Elizabeth L Jaeger Alexi A Schoenborn Patricia V Basta Hendrik Dejong Jingchun Luo Marisa Gallant Robert S Sandler Millie D Long Michael D Kappelman

BACKGROUND The Internet has successfully been used for patient-oriented survey research. Internet-based translational research may also be possible. OBJECTIVE Our aim was to study the feasibility of collecting biospecimens from CCFA Partners, an Internet-based inflammatory bowel disease (IBD) cohort. METHODS From August 20, 2013, to January 4, 2014, we randomly sampled 412 participants, plu...

Infectious bursal disease (IBD), also known as Gumboro disease, is a globally well-known disease with a significant socio-economic effect. For control of IBD, several commercial egg- and cell-based vaccines are prepared. The cell-based IBD vaccines are significantly cost-effective; however, it is essential to confirm their safety and efficacy. The main cell line used to product the cell-based I...

Journal: :American journal of human genetics 2004
Tasha E Fingerlin Michael Boehnke Gonçalo R Abecasis

Case-control disease-marker association studies are often used in the search for variants that predispose to complex diseases. One approach to increasing the power of these studies is to enrich the case sample for individuals likely to be affected because of genetic factors. In this article, we compare three case-selection strategies that use allele-sharing information with the standard strateg...

2013
Yeunjoo E. Song Robert C. Elston

A novel web-based tool PedWiz that pipelines the informatics process for pedigree data is introduced. PedWiz is designed to assist researchers in the analysis of pedigree data. It provides a convenient tool for pedigree informatics: descriptive statistics, relative pairs, genetic similarity coefficients, the variance-covariance matrix for three estimated coefficients of allele identical-by-desc...

Journal: :BMC Proceedings 2007
Ying Liu Weimin Duan Justin Paschall Nancy L Saccone

BACKGROUND Using single-nucleotide polymorphism (SNP) genotypes and selected gene expression phenotypes from 14 CEPH (Centre d'Etude du Polymorphisme Humain) pedigrees provided for Genetic Analysis Workshop 15 (GAW15), we analyzed quantitative traits with artificial neural networks (ANNs). Our goals were to identify individual linkage signals and examine gene x gene interactions. First, we used...

2015
David J. Cutler Michael E. Zwick David T. Okou Sampath Prahalad Thomas Walters Stephen L. Guthery Marla Dubinsky Robert Baldassano Wallace V. Crandall Joel Rosh James Markowitz Michael Stephens Richard Kellermayer Marian Pfefferkorn Melvin B. Heyman Neal LeLeiko David Mack Dedrick Moulton Michael D. Kappelman Archana Kumar Jarod Prince Promita Bose Kajari Mondal Dhanya Ramachandran John F. Bohnsack Anne M. Griffiths Yael Haberman Jonah Essers Susan D. Thompson Bruce Aronow David J. Keljo Jeffrey S. Hyams Lee A. Denson Subra Kugathasan Fabio Cominelli

BACKGROUND The inflammatory bowel diseases (IBD) are common, complex disorders in which genetic and environmental factors are believed to interact leading to chronic inflammatory responses against the gut microbiota. Earlier genetic studies performed in mostly adult population of European descent identified 163 loci affecting IBD risk, but most have relatively modest effect sizes, and altogethe...

Journal: :BMC Proceedings 2007
Karola Köhler Melanie Sohns Heike Bickeböller

Related cases may be included in case-control association studies if correlations between related individuals due to identity-by-descent (IBD) sharing are taken into account. We derived a framework to test for association in a case-control design including affected sibships and unrelated controls. First, a corrected variance for the allele frequency difference between cases and controls was dir...

2017
Metten Somers Loes M. Olde Loohuis Maartje F. Aukes Bogdan Pasaniuc Kees C. L. de Visser René S. Kahn Iris E. Sommer Roel A. Ophoff

Genetic isolated populations have features that may facilitate genetic analyses and can be leveraged to improve power of mapping genes to complex traits. Our aim was to test the extent to which a population with a former history of geographic isolation and religious endogamy, and currently with one of the highest fertility rates in The Netherlands, shows signs of genetic isolation. For this pur...

2014
Adi Lahat Sandra Neuman Rami Eliakim Shomron Ben-Horin

BACKGROUND Chronic inflammatory bowel disease (IBD) causes significant distress for patients and their families. Data assessing the need of these patients for support and sharing with their partners are scarce. The aim of this study was to assess patients' views regarding sharing of information with their partners. METHODS Ambulatory IBD patients treated at the Chaim Sheba Medical Center betw...

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