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GWAS Study

Genome-wide association study of platelet aggregation in African Americans.

Qayyum R, Becker LC, Becker DM et al.

26024889 PubMed ID
GWAS Study Type
2165 Participants
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Chapter I

Publication Details

Comprehensive information about this research publication

Authors

QR
Qayyum R
BL
Becker LC
BD
Becker DM
FN
Faraday N
YL
Yanek LR
LS
Leal SM
SC
Shaw C
MR
Mathias R
SB
Suktitipat B
BP
Bray PF
Chapter II

Abstract

Summary of the research findings

We have previously shown that platelet aggregation has higher heritability in African Americans than European Americans. However, a genome-wide association study (GWAS) of platelet aggregation in African Americans has not been reported. We measured platelet aggregation in response to arachidonic acid, ADP, collagen, or epinephrine by optical aggregometry. The discovery cohort was 825 African Americans from the GeneSTAR study. Two replication cohorts were used: 119 African Americans from the Platelet Genes and Physiology Study and 1221 European Americans from GeneSTAR. Genotyping was conducted with Illumina 1 M arrays. For each cohort, age- and sex-adjusted linear mixed models were used to test for association between each SNP and each phenotype under an additive model.

825 African American individuals

Chapter III

Study Statistics

Key metrics and study information

2165
Total Participants
GWAS
Study Type
Yes
Replicated
119 African American individuals, 1,221 European ancestry individuals
Replication Participants
African American or Afro-Caribbean, European
Ancestry
U.S.
Recruitment Country
Chapter IV

Analysis

Comprehensive review of health and genetic findings

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