Reduced occipital and prefrontal brain volumes in dysbindin-associated schizophrenia - PubMed (original) (raw)
doi: 10.1038/npp.2009.140.
Thomas Frodl, Derek Morris, Ilaria Spoletini, Dara M Cannon, Andrea Cherubini, Carlo Caltagirone, Paola Bossù, Colm McDonald, Michael Gill, Aiden P Corvin, Gianfranco Spalletta
Affiliations
- PMID: 19794403
- PMCID: PMC3055383
- DOI: 10.1038/npp.2009.140
Reduced occipital and prefrontal brain volumes in dysbindin-associated schizophrenia
Gary Donohoe et al. Neuropsychopharmacology. 2010 Jan.
Abstract
A three-marker C-A-T dysbindin haplotype identified by Williams et al (PMID: 15066891) is associated with increased risk for schizophrenia, decreased mRNA expression, poorer cognitive performance, and early sensory processing deficits. We investigated whether this same dysbindin risk haplotype was also associated with structural variation in the gray matter volume (GMV). Using voxel-based morphometry, whole-volume analysis revealed significantly reduced GMVs in both the right dorsolateral prefrontal and left occipital cortex, corresponding to the behavioral findings of impaired spatial working memory and EEG findings of impaired visual processing already reported. These data provide important evidence of the influence of dysbindin risk variants on brain structure, and suggest a possible mechanism by which disease risk is being increased.
Figures
Figure 1
Differences between patient carriers and non-carriers of the dysbindin-risk haplotype. Risk carriers show significantly smaller gray matter volumes in (a) left occipital cortex and (b) right dorsolateral prefrontal cortex (FWE corrected).
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