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Evidence that schizophrenia risk variation in the ZNF804A gene exerts its effects during foetal brain development

Hill, Matthew J. and Bray, Nicholas John ORCID: 2012. Evidence that schizophrenia risk variation in the ZNF804A gene exerts its effects during foetal brain development. American Journal of Psychiatry 169 (12) , pp. 1301-1308.

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OBJECTIVE: The single-nucleotide polymorphism rs1344706, located within an intron of the ZNF804A gene, exhibits genome-wide significant association with schizophrenia. Although genotype at rs1344706 is associated with altered functional brain connectivity, the molecular mechanisms mediating its association with schizophrenia have not been clearly defined. Given its location in noncoding sequence, the authors tested association between rs1344706 and ZNF804A expression in adult and fetal human brain. METHOD: Highly quantitative measures of relative allelic expression were used to assess the effect of rs1344706 genotype on the mRNA expression of ZNF804A in the dorsolateral prefrontal cortex, hippocampus, and substantia nigra of the adult human brain and in human brain tissue from the first and second trimester of gestation. RESULTS: Genotype at rs1344706 had no significant effect on the regulation of ZNF804A in any of the three adult brain regions examined. In contrast, rs1344706 genotype had a significant effect on ZNF804A allelic expression in second-trimester fetal brain, with the schizophrenia risk (T) allele associated with reduced ZNF804A expression. CONCLUSIONS: The T allele of rs1344706 is associated with a relative decrease in ZNF804A expression during the second trimester of fetal brain development. These data provide evidence for a schizophrenia risk mechanism that is operational in (and possibly specific to) the fetal brain.

Item Type: Article
Date Type: Publication
Status: Published
Schools: MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Subjects: R Medicine > R Medicine (General)
Publisher: American Psychiatric Publishing
ISSN: 0002-953X
Last Modified: 31 Oct 2022 09:43

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