Results

RDF/XMLNTriplesTurtleShow queryShare ▶
SubjectPredicateObject
http://purl.uniprot.org/citations/20921115http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/20921115http://www.w3.org/2000/01/rdf-schema#comment"

Context

NRG1 is a schizophrenia candidate gene and plays an important role in brain development and neural function. Schizophrenia is a complex disorder, with etiology likely due to epistasis.

Objective

To examine epistasis between NRG1 and selected N-methyl-d-aspartate-glutamate pathway partners implicated in its effects, including ERBB4, AKT1, DLG4, NOS1, and NOS1AP.

Design

Schizophrenia case-control sample analyzed using machine learning algorithms and logistic regression with follow-up using neuroimaging on an independent sample of healthy controls.

Participants

A referred sample of schizophrenic patients (n = 296) meeting DSM-IV criteria for schizophrenia spectrum disorder and a volunteer sample of controls for case-control comparison (n = 365) and a separate volunteer sample of controls for neuroimaging (n = 172).

Main outcome measures

Epistatic association between single-nucleotide polymorphisms (SNPs) and case-control status; epistatic association between SNPs and the blood oxygen level-dependent physiological response during working memory measured by functional magnetic resonance imaging.

Results

We observed interaction between NRG1 5' and 3' SNPs rs4560751 and rs3802160 (likelihood ratio test P = .00020) and schizophrenia, which was validated using functional magnetic resonance imaging of working memory in healthy controls; carriers of risk-associated genotypes showed inefficient processing in the dorsolateral prefrontal cortex (P = .015, familywise error corrected). We observed epistasis between NRG1 (rs10503929; Thr286/289/294Met) and its receptor ERBB4 (rs1026882; likelihood ratio test P = .035); a 3-way interaction with these 2 SNPs and AKT1 (rs2494734) was also observed (odds ratio, 27.13; 95% confidence interval, 3.30-223.03; likelihood ratio test P = .042). These same 2- and 3-way interactions were further biologically validated via functional magnetic resonance imaging: healthy individuals carrying risk genotypes for NRG1 and ERBB4, or these 2 together with AKT1, were disproportionately less efficient in dorsolateral prefrontal cortex processing. Lower-level interactions were not observed between NRG1 /ERBB4 and AKT1 in association or neuroimaging, consistent with biological evidence that NRG1 × ERBB4 interaction modulates downstream AKT1 signaling.

Conclusion

Our data suggest complex epistatic effects implicating an NRG1 molecular pathway in cognitive brain function and the pathogenesis of schizophrenia."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.org/dc/terms/identifier"doi:10.1001/archgenpsychiatry.2010.117"xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Dean M."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Giegling I."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Gold B."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Rujescu D."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Weinberger D.R."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Callicott J.H."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"McGee K."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Straub R.E."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Kolachana B."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Vakkalanka R."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Nicodemus K.K."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Muglia P."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Law A.J."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Tan H.Y."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Luna A."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/author"Radulescu E."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/date"2010"xsd:gYear
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/name"Arch Gen Psychiatry"xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/pages"991-1001"xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/title"Biological validation of increased schizophrenia risk with NRG1, ERBB4, and AKT1 epistasis via functional neuroimaging in healthy controls."xsd:string
http://purl.uniprot.org/citations/20921115http://purl.uniprot.org/core/volume"67"xsd:string
http://purl.uniprot.org/citations/20921115http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/20921115
▶