Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Genome-wide association study identifies SESTD1 as a novel risk gene for lithium-responsive bipolar disorder

Song, J., Bergen, S.E., Di Florio, Arianna, Karlsson, R., Charney, A., Ruderfer, D. M., Stahl, E. A., Chambert, K. D., Moran, J. L., Gordon-Smith, K., Forty, Elizabeth, Green, E. K., Jones, Ian Richard, Jones, L, Scolnick, E. M., Sklar, P., Smoller, J. W., Lichtenstein, P., Hultman, C., Craddock, Nicholas John, Landén, M., Smoller, Jordan W., Perlis, Roy H., Lee, Phil Hyoun, Castro, Victor M., Hoffnagle, Alison G., Sklar, Pamela, Stahl, Eli A., Purcell, Shaun M., Ruderfer, Douglas M., Charney, Alexander W., Roussos, Panos, Michele Pato, Carlos Pato, Medeiros, Helen, Sobel, Janet, Green, Elaine, Jones, Lisa, Gordon-Smith, Katherine, Landen, Mikael, Hultman, Christina, Jureus, Anders, Bergen, Sarah, McCarroll, Steven, Moran, Jennifer, Smoller, Jordan W., Chambert, Kimberly and Belliveau, Richard A. 2016. Genome-wide association study identifies SESTD1 as a novel risk gene for lithium-responsive bipolar disorder. Molecular Psychiatry 2016 (21) , pp. 1290-1297. 10.1038/mp.2015.165

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (1MB) | Preview

Abstract

Lithium is the mainstay prophylactic treatment for bipolar disorder (BD), but treatment response varies considerably across individuals. Patients who respond well to lithium treatment might represent a relatively homogeneous subtype of this genetically and phenotypically diverse disorder. Here, we performed genome-wide association studies (GWAS) to identify (i) specific genetic variations influencing lithium response and (ii) genetic variants associated with risk for lithium-responsive BD. Patients with BD and controls were recruited from Sweden and the United Kingdom. GWAS were performed on 2698 patients with subjectively defined (self-reported) lithium response and 1176 patients with objectively defined (clinically documented) lithium response. We next conducted GWAS comparing lithium responders with healthy controls (1639 subjective responders and 8899 controls; 323 objective responders and 6684 controls). Meta-analyses of Swedish and UK results revealed no significant associations with lithium response within the bipolar subjects. However, when comparing lithium-responsive patients with controls, two imputed markers attained genome-wide significant associations, among which one was validated in confirmatory genotyping (rs116323614, P=2.74 × 10−8). It is an intronic single-nucleotide polymorphism (SNP) on chromosome 2q31.2 in the gene SEC14 and spectrin domains 1 (SESTD1), which encodes a protein involved in regulation of phospholipids. Phospholipids have been strongly implicated as lithium treatment targets. Furthermore, we estimated the proportion of variance for lithium-responsive BD explained by common variants (‘SNP heritability’) as 0.25 and 0.29 using two definitions of lithium response. Our results revealed a genetic variant in SESTD1 associated with risk for lithium-responsive BD, suggesting that the understanding of BD etiology could be furthered by focusing on this subtype of BD.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Publisher: Nature Publishing Group
ISSN: 1359-4184
Date of First Compliant Deposit: 22 September 2016
Date of Acceptance: 24 September 2015
Last Modified: 15 Dec 2017 11:49
URI: http://orca.cf.ac.uk/id/eprint/86193

Citation Data

Cited 18 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item

Downloads

Downloads per month over past year

View more statistics