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A Method to Exploit...
A Method to Exploit the Structure of Genetic Ancestry Space to Enhance Case-Control Studies
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- Bodea, Corneliu A. (författare)
- Department of Statistics, Carnegie Mellon University, Pittsburgh PA, USA; Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston MA, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge MA, USA
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- Neale, Benjamin M. (författare)
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge MA, USA; Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston MA, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge MA, USA
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- Ripke, Stephan (författare)
- Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston MA, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge MA, USA; Department of Psychiatry and Psychotherapy, Charite, Campus Mitte, Berlin, Germany
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International IBD Genetics Consortium, Group author (författare)
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- Daly, Mark J. (författare)
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge MA, USA; Analytical and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston MA, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge MA, USA
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- Devlin, Bernie (författare)
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh PA, USA
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- Roeder, Kathryn (författare)
- Department of Statistics, Carnegie Mellon University, Pittsburgh PA, USA; Computational Biology Department, Carnegie Mellon University, Pittsburgh PA, USA
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- Halfvarson, Jonas, 1970- (bidragsgivare)
- Örebro universitet,Institutionen för medicinska vetenskaper
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(creator_code:org_t)
- University of Chicago Press, 2016
- 2016
- Engelska.
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Ingår i: American Journal of Human Genetics. - : University of Chicago Press. - 0002-9297 .- 1537-6605. ; 98:5, s. 857-868
- Relaterad länk:
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https://doi.org/10.1...
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http://www.cell.com/...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- One goal of human genetics is to understand the genetic basis of disease, a challenge for diseases of complex inheritance because risk alleles are few relative to the vast set of benign variants. Risk variants are often sought by association studies in which allele frequencies in case subjects are contrasted with those from population-based samples used as control subjects. In an ideal world we would know population-level allele frequencies, releasing researchers to focus on case subjects. We argue this ideal is possible, at least theoretically, and we outline a path to achieving it in reality. If such a resource were to exist, it would yield ample savings and would facilitate the effective use of data repositories by removing administrative and technical barriers. We call this concept the Universal Control Repository Network (UNICORN), a means to perform association analyses without necessitating direct access to individual-level control data. Our approach to UNICORN uses existing genetic resources and various statistical tools to analyze these data, including hierarchical clustering with spectral analysis of ancestry; and empirical Bayesian analysis along with Gaussian spatial processes to estimate ancestry-specific allele frequencies. We demonstrate our approach using tens of thousands of control subjects from studies of Crohn disease, showing how it controls false positives, provides power similar to that achieved when all control data are directly accessible, and enhances power when control data are limiting or even imperfectly matched ancestrally. These results highlight how UNICORN can enable reliable, powerful, and convenient genetic association analyses without access to the individual-level data.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Gastroenterologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Gastroenterology and Hepatology (hsv//eng)
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