Neural mechanisms of a genome-wide supported psychosis variant - PubMed (original) (raw)

. 2009 May 1;324(5927):605.

doi: 10.1126/science.1167768.

Henrik Walter, Peter Kirsch, Susanne Erk, Knut Schnell, Claudia Arnold, Leila Haddad, Daniela Mier, Carola Opitz von Boberfeld, Kyeon Raab, Stephanie H Witt, Marcella Rietschel, Sven Cichon, Andreas Meyer-Lindenberg

Affiliations

• PMID: 19407193
• DOI: 10.1126/science.1167768

Neural mechanisms of a genome-wide supported psychosis variant

Christine Esslinger et al. Science. 2009.

Abstract

Schizophrenia is a devastating, highly heritable brain disorder of unknown etiology. Recently, the first common genetic variant associated on a genome-wide level with schizophrenia and possibly bipolar disorder was discovered in ZNF804A (rs1344706). We show, by using an imaging genetics approach, that healthy carriers of rs1344706 risk genotypes exhibit no changes in regional activity but pronounced gene dosage-dependent alterations in functional coupling (correlated activity) of dorsolateral prefrontal cortex (DLPFC) across hemispheres and with hippocampus, mirroring findings in patients, and abnormal coupling of amygdala. Our findings establish disturbed connectivity as a neurogenetic risk mechanism for psychosis supported by genome-wide association, show that rs1344706 or variation in linkage disequilibrium is functional in human brain, and validate the intermediate phenotype strategy in psychiatry.

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