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Polygenic Risk for Schizophrenia, Major Depression, and Post-traumatic Stress Disorder and Hippocampal Subregion Volumes in Middle Childhood

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Abstract

Studies demonstrate that individuals with diagnoses for Major Depressive Disorder (MDD), Post-traumatic Stress Disorder (PTSD), and Schizophrenia (SCZ) may exhibit smaller hippocampal gray matter relative to otherwise healthy controls, although the effect sizes vary in each disorder. Existing work suggests that hippocampal abnormalities in each disorder may be attributable to genetic liability and/or environmental variables. The following study uses baseline data from the Adolescent Brain and Cognitive Development\(^{SM}\) Study (ABCD Study\(\circledR\)) to address three open questions regarding the relationship between genetic risk for each disorder and hippocampal volume reductions: (a) whether polygenic risk scores (PGRS) for MDD, PTSD, and SCZ are related to hippocampal volume; (b) whether PGRS for MDD, PTSD, and SCZ are differentially related to specific hippocampal subregions along the longitudinal axis; and (c) whether the association between PGRS for MDD, PTSD, and SCZ and hippocampal volume is moderated by sex and/or environmental adversity. In short, we did not find associations between PGRS for MDD, PTSD, and SCZ to be significantly related to any hippocampal subregion volumes. Furthermore, neither sex nor enviornmental adversity significantly moderated these associations. Our study provides an important null finding on the relationship genetic risk for MDD, PTSD, and SCZ to measures of hippocampal volume.

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Acknowledgements

This project was supported by the following funding sources: F31AA029934-01 (S.E.P.); K01DA051759 (E.J.).

Funding

This project was supported by the following funding sources: F31AA029934-01 (S.E.P.); K01DA051759 (E.J.)

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Authors and Affiliations

Authors

Contributions

J.P designed the study, ran the hippocampal segmentation software, conducted the analyses, and wrote the manuscript. S.P and E.J computed the polygenic risk scores. R.B and D.B provided supervision and reviewed and edited the manuscript. S.K also ran hippocampal segmentation software and provided programming support.

Corresponding author

Correspondence to Jacob G. Pine.

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Competing interests

Jacob G. Pine, Sarah E. Paul, Ryan Bogdan, Sridhar Kandala, and Deanna Barch have no conflicts of interest to declare.

Ethical Approval

This study was approved by the local Institutional Review Board. Data used in the preparation of this article were obtained from the Adolescent Brain Cognitive Development (ABCD) Study (https://abcdstudy.org), held in the NIMH Data Archive (NDA). This is a multisite, longitudinal study designed to recruit more than 10,000 children age 9–10 and follow them over 10 years into early adulthood. The ABCD Study is supported by the National Institutes of Health and additional federal partners under award numbers U01DA041022, U01DA041028, U01DA041048, U01DA041089, U01DA041106, U01DA041117, U01DA041120, U01DA041134, U01DA041148, U01DA041156, U01DA041174, U24DA041123, U24DA041147, U01DA041093, and U01DA041025. A full list of supporters is available at https://abcdstudy.org/federal-partners.html. A listing of participating sites and a complete listing of the study investigators can be found at https://abcdstudy.org/Consortium_Members.pdf. ABCD consortium investigators designed and implemented the study and/or provided data but did not necessarily participate in analysis or writing of this report. This manuscript reflects the views of the authors and may not reflect the opinions or views of the NIH or ABCD consortium investigators.

Consent to Participate

All participants in ABCD provided informed consent (or assent).

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Edited by Chun Chieh Fan.

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Pine, J.G., Paul, S.E., Johnson, E. et al. Polygenic Risk for Schizophrenia, Major Depression, and Post-traumatic Stress Disorder and Hippocampal Subregion Volumes in Middle Childhood. Behav Genet 53, 279–291 (2023). https://doi.org/10.1007/s10519-023-10134-1

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  • DOI: https://doi.org/10.1007/s10519-023-10134-1

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