Abstract
Psychiatric disorders are complex, heritable and highly polygenic. Supported by findings of abnormalities in functional magnetic resonance imaging-based measures of brain connectivity, current theoretical and empirical accounts have conceptualized them as disorders of brain connectivity and dysfunctional integration of brain signaling. However, the extent to which these findings reflect common genetic factors remains unclear. Here we performed a multivariate genome-wide association analysis of functional magnetic resonance imaging-based functional brain connectivity in a sample of 30,701 individuals from the UK Biobank and investigated the shared genetic determinants with eight major psychiatric disorders. The analysis revealed significant genetic overlap between functional brain connectivity and schizophrenia, bipolar disorder, attention-deficit/hyperactivity disorder, autism spectrum disorder, anxiety and major depression, adding further genetic support for the dysconnectivity hypothesis of psychiatric disorders and identifying potential genetic and functional targets for future studies.
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Data availability
Data used in this study are part of the publicly available UK Biobank initiative (https://www.ukbiobank.ac.uk/). Summary statistics for the disorders are publicly available through their respective consortia (Supplementary Table 1). The summary statistics for the multivariate analyses are available on GitHub (https://www.github.com/norment/open-science).
Code availability
Code is publicly available on GitHub (https://www.github.com/norment/open-science).
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Acknowledgements
The authors were funded by the Research Council of Norway (#276082 LifespanHealth, #323961 BRAINGAP, #223273 NORMENT, #283798 ERA-NET Neuron SYNSCHIZ, #249795, #298646 and #300767), the South-East Norway Regional Health Authority (2019101, 2019107 and 2020086) and the European Research Council under the European Union’s Horizon2020 Research and Innovation program (ERC Starting Grant #802998), as well as the Horizon2020 Research and Innovation Action Grant CoMorMent (#847776). This research has been conducted using the UK Biobank Resource (access code 27412, https://www.ukbiobank.ac.uk/). This work was performed on the TSD (Tjenester for Sensitive Data) facilities, owned by the University of Oslo, operated and developed by the TSD service group at the University of Oslo, IT-Department (USIT). Computations were also performed on resources provided by UNINETT Sigma2—the National Infrastructure for High Performance Computing and Data Storage in Norway.
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D.R. and T.K. conceived the study; D.R. analyzed the data with contributions from T.K.; D.R., D.v.d.M., D.A., O.F., A.A.S., R.L., C.C.F., A.M.D., O.A.A., L.T.W. and T.K. contributed with conceptual input on methods and/or interpretation of results; D.R. and T.K. wrote the first draft of the paper, and D.R., D.v.d.M., D.A., O.F., A.A.S., R.L., C.C.F., A.M.D., O.A.A., L.T.W. and T.K. contributed to the final manuscript.
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D.R., D.v.d.M., D.A., O.F., A.A.S., R.L., C.C.F., L.T.W. and T.K. declare no conflicts of interest. O.A.A. is a consultant to HealthLytix and received speakers honorarium from Lundbeck. A.M.D. is a Founder of and holds equity in CorTechs Labs, Inc., and serves on its Scientific Advisory Board. The terms of this arrangement have been reviewed and approved by UCSD in accordance with its conflict of interest policies.
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Roelfs, D., van der Meer, D., Alnæs, D. et al. Genetic overlap between multivariate measures of human functional brain connectivity and psychiatric disorders. Nat. Mental Health 2, 189–199 (2024). https://doi.org/10.1038/s44220-023-00190-1
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DOI: https://doi.org/10.1038/s44220-023-00190-1
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