Brain morphology in children with 47, XYY syndrome: a voxel‐ and surface‐based morphometric study. (6th December 2013)

• Record Type: Journal Article
• Authors: Lepage, J.‐F.; Hong, D. S.; Raman, M.; Marzelli, M.; Roeltgen, D. P.; Lai, S.; Ross, J.; Reiss, A. L.
• Is Part Of: Genes, brain, and behavior. Volume 13:Number 2(2014:Mar.)
• Page Start: 127
• Page End: 134
• Publication Date: 2013-12-06
• Subjects: Behavior genetics -- Periodicals; Neurogenetics -- Periodicals; 616.8
• DOI: 10.1111/gbb.12107
• Languages: English
• ISSNs: 1601-1848

Abstract

<abstract abstract-type="main" id="gbb12107-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p id="gbb12107-para-0001"> <bold>The neurocognitive and behavioral profile of individuals with 47, XYY is increasingly documented; however, very little is known about the effect of a supernumerary Y‐chromosome on brain development. Establishing the neural phenotype associated with 47, XYY may prove valuable in clarifying the role of Y‐chromosome gene dosage effects, a potential factor in several neuropsychiatric disorders that show a prevalence bias toward males, including autism spectrum disorders. Here, we investigated brain structure in 10 young boys with 47, XYY and 10 age‐matched healthy controls by combining voxel‐based morphometry (VBM) and surface‐based morphometry (SBM). The VBM results show the existence of altered gray matter volume (GMV) in the insular and parietal regions of 47, XYY relative to controls, changes that were paralleled by extensive modifications in white matter (WM) bilaterally in the frontal and superior parietal lobes. The SBM analyses corroborated these findings and revealed the presence of abnormal surface area and cortical thinning in regions with abnormal GMV and WMV. Overall, these preliminary results demonstrate a significant impact of a supernumerary Y‐chromosome on brain development, provide a neural basis for the motor, speech and behavior regulation difficulties associated with 47, XYY and may relate to sexual dimorphism in these areas</bold>.</p> </abstract>