Genomics

Dataset Information

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EMERGE Geisinger eGenomic Medicine (GeM) - MyCode Project Controls


ABSTRACT:

A research cohort of adult Geisinger Clinic patients was enrolled from community-based primary care clinics of the Geisinger Health System. Patients were eligible for enrollment if they were a primary care patient of a Geisinger Clinic physician and were scheduled for a non-emergent clinic visit. All participants provided written informed consent and HIPAA authorization. Consenting patient agreed to provide blood samples for broad biomedical research use, and permission to access data in their Geisinger electronic medical record for research. The enrollment rate was 90% of patients approached. The demographics of the cohort approximate those of the Geisinger Clinic outpatient population. Research blood samples were collected during an outpatient clinical phlebotomy encounter. Research blood samples are coded and stored in a central biorepository. Samples are linkable to clinical data in a de-identified manner for research via an IRB-approved data broker process. For genomic analysis, DNA is extracted from EDTA-anticoagulated whole blood. For the initial eMERGE Geisinger eGenomic Medicine (GeM) genotyping project, a subset of 1,232 unique samples were genotyped using Illumina HumanOmniExpress-12 v1.0 arrays, and used as population controls for other Geisinger Clinic case cohorts, including abdominal aortic aneurysm and gastric bypass surgery cases. These samples were selected from a larger subset of approximately 6,000 MyCode DNA samples using a partial matching algorithm that included age, sex, and body mass index as variables.

PROVIDER: phs000381.v1.p1 | EGA |

REPOSITORIES: EGA

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Publications

Identification of a genetic variant associated with abdominal aortic aneurysms on chromosome 3p12.3 by genome wide association.

Elmore James R JR   Obmann Melissa A MA   Kuivaniemi Helena H   Tromp Gerard G   Gerhard Glenn S GS   Franklin David P DP   Boddy Amy M AM   Carey David J DJ  

Journal of vascular surgery 20090601 6


<h4>Objective</h4>The goal of this project was to identify genetic variants associated with abdominal aortic aneurysms (AAAs).<h4>Methods</h4>A genome wide association study was carried out using pooled DNA samples from 123 AAA cases and 112 controls matched for age, gender, and smoking history using Affymetrix 500K single nucleotide polymorphism (SNP) arrays (Affymetrix, Inc, Santa Clara, Calif). The difference in mean allele frequency between cases and controls was calculated for each SNP and  ...[more]

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