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

Hair cortisol in twins: Heritability and genetic overlap with psychological variables and stress-system genes

Rietschel, Liz, Streit, Fabian, Zhu, Gu, McAloney, Kerrie, Frank, Josef, Couvy-Duchesne, Baptiste, Witt, Stephanie H., Binz, Tina M., McGrath, John, Hickie, Ian B., Hansell, Narelle K., Wright, Margaret J., Gillespie, Nathan A., Forstner, Andreas J., Schulze, Thomas G., Wüst, Stefan, Nöthen, Markus M., Baumgartner, Markus R., Walker, Brian R., Crawford, Andrew A., Colodro-Conde, Lucía, Medland, Sarah E., Martin, Nicholas G., Rietschel, Marcella and Escott-Price, Valentina 2017. Hair cortisol in twins: Heritability and genetic overlap with psychological variables and stress-system genes. Scientific Reports 7 (1) , 15351. 10.1038/s41598-017-11852-3

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution.

Download (1MB) | Preview

Abstract

Hair cortisol concentration (HCC) is a promising measure of long-term hypothalamus-pituitary-adrenal (HPA) axis activity. Previous research has suggested an association between HCC and psychological variables, and initial studies of inter-individual variance in HCC have implicated genetic factors. However, whether HCC and psychological variables share genetic risk factors remains unclear. The aims of the present twin study were to: (i) assess the heritability of HCC; (ii) estimate the phenotypic and genetic correlation between HPA axis activity and the psychological variables perceived stress, depressive symptoms, and neuroticism; using formal genetic twin models and molecular genetic methods, i.e. polygenic risk scores (PRS). HCC was measured in 671 adolescents and young adults. These included 115 monozygotic and 183 dizygotic twin-pairs. For 432 subjects PRS scores for plasma cortisol, major depression, and neuroticism were calculated using data from large genome wide association studies. The twin model revealed a heritability for HCC of 72%. No significant phenotypic or genetic correlation was found between HCC and the three psychological variables of interest. PRS did not explain variance in HCC. The present data suggest that HCC is highly heritable. However, the data do not support a strong biological link between HCC and any of the investigated psychological variables.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Medicine
MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Subjects: R Medicine > R Medicine (General)
Publisher: Nature Publishing Group
ISSN: 2045-2322
Date of First Compliant Deposit: 7 December 2017
Date of Acceptance: 30 August 2017
Last Modified: 31 May 2018 18:15
URI: http://orca.cf.ac.uk/id/eprint/107417

Citation Data

Cited 9 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