Department of Economics and Business Economics

Shared molecular neuropathology across major psychiatric disorders parallels polygenic overlap

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The predisposition to neuropsychiatric disease involves a complex, polygenic, and pleiotropic genetic architecture. However, little is known about how genetic variants impart brain dysfunction or pathology. We used transcriptomic profiling as a quantitative readout of molecular brain-based phenotypes across five major psychiatric disorders-autism, schizophrenia, bipolar disorder, depression, and alcoholism-compared with matched controls. We identified patterns of shared and distinct gene-expression perturbations across these conditions. The degree of sharing of transcriptional dysregulation is related to polygenic (single-nucleotide polymorphism-based) overlap across disorders, suggesting a substantial causal genetic component. This comprehensive systems-level view of the neurobiological architecture of major neuropsychiatric illness demonstrates pathways of molecular convergence and specificity.

Original languageEnglish
JournalScience
Volume359
Issue6376
Pages (from-to)693-697
Number of pages5
ISSN0036-8075
DOIs
Publication statusPublished - 9 Feb 2018

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  • Journal Article

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