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- Title
Psychiatric Resilience and Alcohol Resistance: A Twin Study of Genetic Correlation and Sex Differences.
- Authors
Sheerin, Christina M.; Bustamante, Daniel; Bountress, Kaitlin E.; Cusack, Shannon E.; Aggen, Steven H.; Kendler, Kenneth S.; Amstadter, Ananda B.
- Abstract
Variability in psychiatric response following stressful/traumatic life events is frequently observed. There is also variability in propensity for alcohol use disorder (AUD) such that some can consume substantial amounts and not develop AUD symptoms whereas others develop an AUD. Our group has applied discrepancy-based approaches to capture psychiatric resilience (PR) and alcohol resistance (AR), both moderately heritable. This study sought to (1) examine the genetic and environmental correlation of these constructs and (2) model qualitative and quantitative sex effects. Data came from a large twin sample (N = 4501 twin pairs) with self-report measures and interviews assessing distress symptoms, stressful life events, alcohol use, and AUD. Correlated liability model results suggested a moderate degree of genetic correlation between PR and AR (0.54) due to the same genetic factors in males and females. Findings highlight the shared genetic predisposition of these resilience/resistance constructs while emphasizing the impact of unique environmental experiences.
- Subjects
GENETIC correlations; ALCOHOLISM; LIFE change events; TWIN studies; ALCOHOL drinking; TWINS; FETOFETAL transfusion; GENDER differences (Psychology)
- Publication
Behavior Genetics, 2021, Vol 51, Issue 6, p619
- ISSN
0001-8244
- Publication type
Article
- DOI
10.1007/s10519-021-10059-7