An investigation into DNA methylation patterns associated with risk preference in older individuals

Autor: Laura J. Smyth, Sharon M. Cruise, Jianjun Tang, Ian Young, Bernadette McGuinness, Frank Kee, Amy Jayne McKnight
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Epigenetics, Vol 17, Iss 10, Pp 1159-1172 (2022)
Druh dokumentu: article
ISSN: 1559-2294
1559-2308
15592294
DOI: 10.1080/15592294.2021.1992910
Popis: Risk preference is a complex trait governed by psycho-social, environmental and genetic determinants. We aimed to examine how an individual’s risk preference associates with their epigenetic profile. Risk preferences were ascertained by asking participants of the Northern Ireland COhort for the Longitudinal study of Ageing to make a series of choices between hypothetical income scenarios. From these, four risk preference categories were derived, ranging from risk-averse to risk-seeking. Illumina’s Infinium High-Density Methylation Assay was used to evaluate the status of 862,927 CpGs. Risk preference and DNA methylation data were obtained for 1,656 individuals. The distribution of single-site DNA methylation levels between risk-averse and risk-seeking individuals was assessed whilst adjusting for age, sex and peripheral white cell counts. In this discovery cohort, 55 CpGs were identified with significantly different levels of methylation (p≤x10−5) between risk-averse and risk-seeking individuals when adjusting for the maximum number of covariates. No CpGs were significantly differentially methylated in any of the risk preference groups at an epigenome-wide association level (p
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