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GWAS Study

Genome-wide association study identifies a susceptibility locus for thyrotoxic periodic paralysis at 17q24.3.

Cheung CL, Lau KS, Ho AY et al.

22863731 PubMed ID
GWAS Study Type
1693 Participants
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Chapter I

Publication Details

Comprehensive information about this research publication

Authors

CC
Cheung CL
LK
Lau KS
HA
Ho AY
LK
Lee KK
TS
Tiu SC
LE
Lau EY
LJ
Leung J
TM
Tsang MW
CK
Chan KW
YC
Yeung CY
WY
Woo YC
CE
Cheung EY
HV
Hung VH
PH
Pang HK
HC
Hung CS
SP
Sham PC
KA
Kung AW
Chapter II

Abstract

Summary of the research findings

Thyrotoxic periodic paralysis (TPP) is a potentially life-threatening complication of thyrotoxicosis. We conducted a genome-wide association study (GWAS) and a replication study with a total of 123 southern Chinese with TPP (cases) and 1,170 healthy controls and identified a susceptibility locus on chromosome 17q24.3 near KCNJ2 (rs312691: odds ratio (OR) = 3.3; P(meta-analysis) = 1.8 × 10(-14)). All subjects with TPP also had Graves' disease, and subsequent TPP versus Graves' disease comparison confirmed that the association at 17q24.3 was specific to TPP. The area under the curve (AUC) of rs312691 genotype for risk prediction of TPP in subjects with Graves' disease was 0.73. Expression quantitative trait locus (eQTL) analysis identified SNPs in the region flanking rs312691 (±10 kb) that could potentially affect KCNJ2 expression (P = 0.0001). Our study has identified a susceptibility locus associated with TPP and provides insight into the causes of TPP.

69 Chinese ancestry cases, 1,170 East Asian ancestry controls

Chapter III

Study Statistics

Key metrics and study information

1693
Total Participants
GWAS
Study Type
Yes
Replicated
54 Chinese ancestry cases, 400 Taiwanese ancestry controls
Replication Participants
East Asian
Ancestry
China
Recruitment Country
Chapter IV

Analysis

Comprehensive review of health and genetic findings

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