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GWAS Study

Genetic loci for lung function in Japanese adults with adjustment for exhaled nitric oxide levels as airway inflammation indicator.

Yamada M, Motoike IN, Kojima K et al.

34782693 PubMed ID
GWAS Study Type
19722 Participants
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Chapter I

Publication Details

Comprehensive information about this research publication

Authors

YM
Yamada M
MI
Motoike IN
KK
Kojima K
FN
Fuse N
HA
Hozawa A
KS
Kuriyama S
KF
Katsuoka F
TS
Tadaka S
SM
Shirota M
SM
Sakurai M
NT
Nakamura T
HY
Hamanaka Y
SK
Suzuki K
SJ
Sugawara J
OS
Ogishima S
UA
Uruno A
KE
Kodama EN
FN
Fujino N
NT
Numakura T
IT
Ichikawa T
MA
Mitsune A
OT
Ohe T
KK
Kinoshita K
IM
Ichinose M
SH
Sugiura H
YM
Yamamoto M
Chapter II

Abstract

Summary of the research findings

Lung function reflects the ability of the respiratory system and is utilized for the assessment of respiratory diseases. Because type 2 airway inflammation influences lung function, genome wide association studies (GWAS) for lung function would be improved by adjustment with an indicator of the inflammation. Here, we performed a GWAS for lung function with adjustment for exhaled nitric oxide (FeNO) levels in two independent Japanese populations. Our GWAS with genotype imputations revealed that the RNF5/AGER locus including AGER rs2070600 SNP, which introduces a G82S substitution of AGER, was the most significantly associated with FEV1/FVC. Three other rare missense variants of AGER were further identified. We also found genetic loci with three candidate genes (NOS2, SPSB2 and RIPOR2) associated with FeNO levels. Analyses with the BioBank-Japan GWAS resource revealed genetic links of FeNO and asthma-related traits, and existence of common genetic background for allergic diseases and their biomarkers. Our study identified the genetic locus most strongly associated with airway obstruction in the Japanese population and three genetic loci associated with FeNO, an indicator of type 2 airway inflammation in adults.

14,061 Japanese ancestry individuals

Chapter III

Study Statistics

Key metrics and study information

19722
Total Participants
GWAS
Study Type
Yes
Replicated
5,661 Japanese ancestry individuals
Replication Participants
East Asian
Ancestry
Japan
Recruitment Country
Chapter IV

Analysis

Comprehensive review of health and genetic findings

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Analysis In Progress

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