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Application of a Genetic Risk Score to Racially Diverse Type 1 Diabetes Populations Demonstrates the Need for Diversity in Risk-Modeling.


ABSTRACT: Prior studies identified HLA class-II and 57 additional loci as contributors to genetic susceptibility for type 1 diabetes (T1D). We hypothesized that race and/or ethnicity would be contextually important for evaluating genetic risk markers previously identified from Caucasian/European cohorts. We determined the capacity for a combined genetic risk score (GRS) to discriminate disease-risk subgroups in a racially and ethnically diverse cohort from the southeastern U.S. including 637 T1D patients, 46 at-risk relatives having two or more T1D-related autoantibodies (?2AAb+), 790 first-degree relatives (?1AAb+), 68 second-degree relatives (?1?AAb+), and 405 controls. GRS was higher among Caucasian T1D and at-risk subjects versus???1AAb+ relatives or controls (P?

SUBMITTER: Perry DJ 

PROVIDER: S-EPMC5852207 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature

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Application of a Genetic Risk Score to Racially Diverse Type 1 Diabetes Populations Demonstrates the Need for Diversity in Risk-Modeling.

Perry Daniel J DJ   Wasserfall Clive H CH   Oram Richard A RA   Williams MacKenzie D MD   Posgai Amanda A   Muir Andrew B AB   Haller Michael J MJ   Schatz Desmond A DA   Wallet Mark A MA   Mathews Clayton E CE   Atkinson Mark A MA   Brusko Todd M TM  

Scientific reports 20180314 1


Prior studies identified HLA class-II and 57 additional loci as contributors to genetic susceptibility for type 1 diabetes (T1D). We hypothesized that race and/or ethnicity would be contextually important for evaluating genetic risk markers previously identified from Caucasian/European cohorts. We determined the capacity for a combined genetic risk score (GRS) to discriminate disease-risk subgroups in a racially and ethnically diverse cohort from the southeastern U.S. including 637 T1D patients,  ...[more]

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