Polygenic liability for schizophrenia and childhood adversity influences daily-life emotion dysregulation and psychosis proneness

L-K Pries, B Klingenberg, C Menne-Lothmann, J Decoster, R van Winkel, D Collip, P Delespaul, M De Hert, C Derom, E Thiery, N Jacobs, M Wichers, O Cinar, B D Lin, J J Luykx, B P F Rutten, J van Os, S Guloksuz

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Abstract

OBJECTIVE: To test whether polygenic risk score for schizophrenia (PRS-S) interacts with childhood adversity and daily-life stressors to influence momentary mental state domains (negative affect, positive affect, and subtle psychosis expression) and stress-sensitivity measures.

METHODS: The data were retrieved from a general population twin cohort including 593 adolescents and young adults. Childhood adversity was assessed using the Childhood Trauma Questionnaire. Daily-life stressors and momentary mental state domains were measured using ecological momentary assessment. PRS-S was trained on the latest Psychiatric Genetics Consortium schizophrenia meta-analysis. The analyses were conducted using multilevel mixed-effects tobit regression models.

RESULTS: Both childhood adversity and daily-life stressors were associated with increased negative affect, decreased positive affect, and increased subtle psychosis expression, while PRS-S was only associated with increased positive affect. No gene-environment correlation was detected. There is novel evidence for interaction effects between PRS-S and childhood adversity to influence momentary mental states [negative affect (b = 0.07, P = 0.013), positive affect (b = -0.05, P = 0.043), and subtle psychosis expression (b = 0.11, P = 0.007)] and stress-sensitivity measures.

CONCLUSION: Exposure to childhood adversities, particularly in individuals with high PRS-S, is pleiotropically associated with emotion dysregulation and psychosis proneness.

Original languageEnglish
Pages (from-to)465-475
Number of pages11
JournalActa Psychiatrica Scandinavica
Volume141
Issue number5
Early online date6 Feb 2020
DOIs
Publication statusPublished - May 2020

Keywords

  • childhood trauma
  • daily-life stressors
  • emotion regulation
  • experience sampling method
  • gene–environment interaction
  • psychosis

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