Functional neuroimaging effects of recently discovered genetic risk loci for schizophrenia and polygenic risk profile in five RDoC subdomains
Recently, 125 loci with genome-wide support for association with schizophrenia were identified. We investigated the impact of these variants and their accumulated genetic risk on brain activation in five neurocognitive domains of the Research Domain Criteria (working memory, reward processing, episo...
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| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
10 January 2017
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| In: |
Translational Psychiatry
Year: 2017, Jahrgang: 7, Heft: 1 |
| ISSN: | 2158-3188 |
| DOI: | 10.1038/tp.2016.272 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1038/tp.2016.272 Verlag, kostenfrei, Volltext: https://www.nature.com/articles/tp2016272 
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| Verfasserangaben: | S. Erk, S. Mohnke, S. Ripke, T.A. Lett, I.M. Veer, C. Wackerhagen, O. Grimm, N. Romanczuk-Seiferth, F. Degenhardt, H. Tost, M. Mattheisen, T.W. Mühleisen, K. Charlet, N. Skarabis, F. Kiefer, S. Cichon, S.H. Witt, M.M. Nöthen, M. Rietschel, A. Heinz, A. Meyer-Lindenberg and H. Walter |
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| 245 | 1 | 0 | |a Functional neuroimaging effects of recently discovered genetic risk loci for schizophrenia and polygenic risk profile in five RDoC subdomains |c S. Erk, S. Mohnke, S. Ripke, T.A. Lett, I.M. Veer, C. Wackerhagen, O. Grimm, N. Romanczuk-Seiferth, F. Degenhardt, H. Tost, M. Mattheisen, T.W. Mühleisen, K. Charlet, N. Skarabis, F. Kiefer, S. Cichon, S.H. Witt, M.M. Nöthen, M. Rietschel, A. Heinz, A. Meyer-Lindenberg and H. Walter |
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| 520 | |a Recently, 125 loci with genome-wide support for association with schizophrenia were identified. We investigated the impact of these variants and their accumulated genetic risk on brain activation in five neurocognitive domains of the Research Domain Criteria (working memory, reward processing, episodic memory, social cognition and emotion processing). In 578 healthy subjects we tested for association (i) of a polygenic risk profile score (RPS) including all single-nucleotide polymorphisms (SNPs) reaching genome-wide significance in the recent genome-wide association studies (GWAS) meta-analysis and (ii) of all independent genome-wide significant loci separately that showed sufficient distribution of all allelic groups in our sample (105 SNPs). The RPS was nominally associated with perigenual anterior cingulate and posterior cingulate/precuneus activation during episodic memory (PFWE(ROI)=0.047) and social cognition (PFWE(ROI)=0.025), respectively. Single SNP analyses revealed that rs9607782, located near EP300, was significantly associated with amygdala recruitment during emotion processing (PFWE(ROI)=1.63 × 10−4, surpassing Bonferroni correction for the number of SNPs). Importantly, this association was replicable in an independent sample (N=150; PFWE(ROI)<0.025). Other SNP effects previously associated with imaging phenotypes were nominally significant, but did not withstand correction for the number of SNPs tested. To assess whether there was true signal within our data, we repeated single SNP analyses with 105 randomly chosen non-schizophrenia-associated variants, observing fewer significant results and lower association probabilities. Applying stringent methodological procedures, we found preliminary evidence for the notion that genetic risk for schizophrenia conferred by rs9607782 may be mediated by amygdala function. We critically evaluate the potential caveats of the methodological approaches employed and offer suggestions for future studies. | ||
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