PubMed · 42687878
Genomic dimensions deconstruct the clinical heterogeneity of bipolar disorder.
Abstract
Bipolar disorder's (BD) clinical heterogeneity has an unresolved genetic basis. We meta-analyzed genome-wide association studies (GWAS) of 16 BD subphenotypes in 226,032 individuals from 57 cohorts (38,022 cases); 10 advanced to multivariate and multi-trait analyses. Four factors (compulsive, psychotic, dysregulated, internalizing) explained 82.8% of shared genetic variance. BD1 and BD2 loaded on distinct factors despite a high genetic correlation; 87.0% of common-factor loci were significant in neither subtype. Unipolar mania aligned with psychosis over internalizing, and was distinguishable from BD1, and rapid cycling showed heritable cross-domain liability. We identified 356 risk loci, 158 novel, including the first univariate-GWAS associations for psychosis, unipolar mania, rapid cycling and schizoaffective disorder-and 249 credible genes (89 high-confidence), 12 with approved-drug or clinical-phase annotations. Cell-type association showed a midbrain dopaminergic-GABAergic gradient along the psychotic factor. BD's genetic architecture appears hierarchical-a general liability resolving into dimensions of course and comorbidity, beyond subtypes.
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Tracey van der Veen, Markos Tesfaye, Jessica Mei Kay Yang, Toni Boltz, Friederike S David, Shane Crinion, Maria Koromina, Till F M Andlauer, Tim B Bigdeli, Brandon J Coombes, Tiffany A Greenwood, Georgia Panagiotaropoulou, Nadine Parker, Heejong Sung, Nicholas Bass, Jonathan R I Coleman, José Guzman-Parra, Janos L Kalman, Caroline C McGrouther, Brittany L Mitchell, Aaditya V Rangan, Katie Scott, Alexey Shadrin, Daniel J Smith, Annabel Vreeker, Kristina Adorjan, Diego Albani, Silvia Alemany, Ney Alliey-Rodriguez, Anastasia Antoniou, Michael Bauer, Eva C Beins, Marco P Boks, Rosa Bosch, Ben M Brumpton, Nathalie Brunkhorst-Kanaan, Monika Budde, William Byerley, Judit Cabana-Domínguez, Murray J Cairns, Bernardo Carpiniello, Miquel Casas, Pablo Cervantes, Chris Chatzinakos, Toni-Kim Clarke, Isabelle Claus, Cristiana Cruceanu, Alfredo Cuellar-Barboza, Piotr M Czerski, Konstantinos Dafnas, Anders M Dale, Nina Dalkner, J Raymond DePaulo, Franziska Degenhardt, Srdjan Djurovic, Valentina Escott-Price, Ayman H Fanous, Frederike T Fellendorf, I Nicol Ferrier, Liz Forty, Josef Frank, Oleksandr Frei, Nelson B Freimer, Julie Garnham, Ian R Gizer, Scott D Gordon, Katherine Gordon-Smith, Tim Hahn, Marian L Hamshere, Arvid Harder, Martin Hautzinger, Urs Heilbronner, Dennis Hellgren, Stefan Herms, Ian B Hickie, Per Hoffmann, Peter A Holmans, Stéphane Jamain, Lina Jonsson, James L Kennedy, Sarah Kittel-Schneider, James A Knowles, Elise Koch, Manolis Kogevinas, Thorsten M Kranz, Steven A Kushner, Catharina Lavebratt, Jacob Lawrence, Markus Leber, Penelope A Lind, Susanne Lucae, Martin Lundberg, Donald J MacIntyre, Wolfgang Maier, Adam X Maihofer, Dolores Malaspina, Mirko Manchia, Eirini Maratou, Lina Martinsson, Melvin G McInnis. 2026-08-26. Genomic dimensions deconstruct the clinical heterogeneity of bipolar disorder.. https://doi.org/10.21203/rs.3.rs-10041361%2Fv1
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