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GWAS Study

Genome-wide association meta-analysis identifies five novel loci for age-related hearing impairment.

Nagtegaal AP, Broer L, Zilhao NR et al.

31645637 PubMed ID
GWAS Study Type
20638 Participants
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Chapter I

Publication Details

Comprehensive information about this research publication

Authors

NA
Nagtegaal AP
BL
Broer L
ZN
Zilhao NR
JJ
Jakobsdottir J
BC
Bishop CE
BM
Brumat M
CM
Christiansen MW
CM
Cocca M
GY
Gao Y
HN
Heard-Costa NL
ED
Evans DS
PN
Pankratz N
PS
Pratt SR
PT
Price TR
SC
Spankovich C
SM
Stimson MR
VK
Valle K
VD
Vuckovic D
WH
Wells H
EG
Eiriksdottir G
FE
Fransen E
IM
Ikram MA
LC
Li CM
LW
Longstreth WT
SC
Steves C
VC
Van Camp G
CA
Correa A
CK
Cruickshanks KJ
GP
Gasparini P
GG
Girotto G
KR
Kaplan RC
NM
Nalls M
SJ
Schweinfurth JM
SS
Seshadri S
SN
Sotoodehnia N
TG
Tranah GJ
UA
Uitterlinden AG
WJ
Wilson JG
GV
Gudnason V
HH
Hoffman HJ
WF
Williams FMK
GA
Goedegebure A
Chapter II

Abstract

Summary of the research findings

Previous research has shown that genes play a substantial role in determining a person's susceptibility to age-related hearing impairment. The existing studies on this subject have different results, which may be caused by difficulties in determining the phenotype or the limited number of participants involved. Here, we have gathered the largest sample to date (discovery n = 9,675; replication n = 10,963; validation n = 356,141), and examined phenotypes that represented low/mid and high frequency hearing loss on the pure tone audiogram. We identified 7 loci that were either replicated and/or validated, of which 5 loci are novel in hearing. Especially the ILDR1 gene is a high profile candidate, as it contains our top SNP, is a known hearing loss gene, has been linked to age-related hearing impairment before, and in addition is preferentially expressed within hair cells of the inner ear. By verifying all previously published SNPs, we can present a paper that combines all new and existing findings to date, giving a complete overview of the genetic architecture of age-related hearing impairment. This is of importance as age-related hearing impairment is highly prevalent in our ageing society and represents a large socio-economic burden.

9,675 European ancestry individuals

Chapter III

Study Statistics

Key metrics and study information

20638
Total Participants
GWAS
Study Type
Yes
Replicated
3,319 European ancestry individuals, 6,909 Hispanic individuals, 735 African American individuals
Replication Participants
African American or Afro-Caribbean, European, Hispanic or Latin American
Ancestry
U.S., Armenia, Azerbaijan, Georgia, Tajikistan, Turkmenistan, Uzbekistan, Belgium, Italy, U.K., Netherlands, Iceland
Recruitment Country
Chapter IV

Analysis

Comprehensive review of health and genetic findings

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Analysis In Progress

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