Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Mol Genet Metab. 2013 Jun;109(2):125-31. doi: 10.1016/j.ymgme.2013.03.020. Epub 2013 Apr 6.

White matter integrity and executive abilities in individuals with phenylketonuria.

Author information

  • 1Department of Psychiatry, Campus Box 8134, Washington University School of Medicine, St. Louis, MO 63110, USA.

Abstract

Previous studies have revealed white matter abnormalities in the brains of individuals with phenylketonuria (PKU), but the microstructural nature of these abnormalities and their relationship to phenylalanine (Phe) levels and cognitive outcomes are poorly understood. In the current study, the microstructural integrity of white matter in 29 individuals with early-treated PKU and 12 healthy controls was examined using two complementary diffusion tensor imaging (DTI) approaches: region-of-interest (ROI) based analysis and voxel-wise tract based spatial statistics (TBSS) analysis. Relationships among DTI, executive abilities, and Phe level findings were explored. DTI revealed widespread lowering of mean diffusivity (MD) in the white matter of the PKU group in comparison with the control group. Executive abilities were also poorer for individuals with PKU than controls. Within the PKU group, lower MD was associated with higher Phe level and poorer executive abilities. These findings are the first to demonstrate the interplay among microstructural white matter integrity, executive abilities, and Phe control in individuals with PKU.

Copyright © 2013 Elsevier Inc. All rights reserved.

PMID:
23608077
[PubMed - indexed for MEDLINE]
PMCID:
PMC3678378
Free PMC Article

Images from this publication.See all images (2)Free text

Figure 1
Figure 2
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for Elsevier Science Icon for PubMed Central
    Loading ...
    Write to the Help Desk