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논문 기본 정보

자료유형
학술저널
저자정보
Jung Kyeongmin (Samsung Medical Center) Yoon Joohyun (Seoul National University Bundang Hospital) Ahn Yeeun (Samsung Medical Center) Kim Soyeon (Samsung Medical Center) Shim Injeong (Samsung Medical Center) Ko Hyunwoong (Seoul National University) Jung Sang-Hyuk (Samsung Medical Center) Kim Jaeyoung (Samsung Medical Center) Kim Hyejin (Samsung Medical Center) Lee Dong June (Samsung Medical Center) Cha Soojin (Samsung Medical Center) Lee Hyewon (Soonchunhyang University) Kim Beomsu (Samsung Medical Center) Cho Min Young (Samsung Medical Center) Cho Hyunbin (Samsung Medical Center) Kim Dan Say (Samsung Medical Center) Kim Jinho (Seoul National University Bundang Hospital) Park Woong-Yang (Sungkyunkwan University School of Medicine) Park Tae Hwan (Hallym University College of Medicine) O`Connell Kevin S. (Oslo University Hospital) Andreassen Ole A. (Oslo University Hospital) Myung Woojae (Seoul National University) Won Hong-Hee (Samsung Medical Center)
저널정보
대한생화학·분자생물학회 Experimental and Molecular Medicine Experimental and Molecular Medicine 제55권
발행연도
2023.6
수록면
1,193 - 1,202 (10page)
DOI
10.1038/s12276-023-01005-0

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Irritability is a heritable core mental trait associated with several psychiatric illnesses. However, the genomic basis of irritability is unclear. Therefore, this study aimed to 1) identify the genetic variants associated with irritability and investigate the associated biological pathways, genes, and tissues as well as single-nucleotide polymorphism (SNP)-based heritability; 2) explore the relationships between irritability and various traits, including psychiatric disorders; and 3) identify additional and shared genetic variants for irritability and psychiatric disorders. We conducted a genome-wide association study (GWAS) using 379,506 European samples (105,975 cases and 273,531 controls) from the UK Biobank. We utilized various post-GWAS analyses, including linkage disequilibrium score regression, the bivariate causal mixture model (MiXeR), and conditional and conjunctional false discovery rate approaches. This GWAS identified 15 independent loci associated with irritability; the total SNP heritability estimate was 4.19%. Genetic correlations with psychiatric disorders were most pronounced for major depressive disorder (MDD) and bipolar II disorder (BD II). MiXeR analysis revealed polygenic overlap with schizophrenia (SCZ), bipolar I disorder (BD I), and MDD. Conditional false discovery rate analyses identified additional loci associated with SCZ (number [n] of additional SNPs = 105), BD I (n = 54), MDD (n = 107), and irritability (n = 157). Conjunctional false discovery rate analyses identified 85, 41, and 198 shared loci between irritability and SCZ, BD I, and MDD, respectively. Multiple genetic loci were associated with irritability and three main psychiatric disorders. Given that irritability is a cross-disorder trait, these findings may help to elucidate the genomics of psychiatric disorders.

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