Transcriptional and neurochemical signatures of cerebral blood flow alterations in schizophrenia and the clinical high-risk state for psychosis
Knight, S. R.; Abbasova, L.; Zeighami, Y.; Hansen, J. Y.; Martins, D.; Zelaya, F.; Dipasquale, O.; Liu, T.; Shin, D.; Bossong, M. G.; Azis, M.; Antoniades, M.; Howes, O. D.; Bonoldi, I.; Egerton, A.; Allen, P.; O'Daly, O.; McGuire, P.; Modinos, G.
Show abstract
The brain integrates multiple scales of description, from the level of cells and molecules to large-scale networks and behaviour, and understanding the relationships between these layers may be fundamental to advancing our understanding of how the brain works in health and disease. Recent neuroimaging research has shown that alterations in brain function that are associated with schizophrenia spectrum disorders (SSD) are already present in young adults at clinical high-risk for psychosis (CHR-P), yet the cellular and molecular determinants of these alterations are not well understood. Here, combining regional cerebral blood flow (rCBF) data with existing transcriptomic and neurotransmitter data, we show that cell-types involved in stress response and inflammation, as well as the dopamine, acetylcholine, GABAA and NMDA receptor systems, align as shared and distinct cellular and neurochemical signatures of rCBF phenotypes in people with SSD and those at CHR-P. Decoding the biological pathways involved in neuroimaging-based psychosis phenotypes may provide a basis for the development of novel interventions.
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