TY - JOUR
T1 - Regional gray and white matter volume abnormalities in obsessive-compulsive disorder
T2 - A voxel-based morphometry study
AU - Togao, Osamu
AU - Yoshiura, Takashi
AU - Nakao, Tomohiro
AU - Nabeyama, Maiko
AU - Sanematsu, Hirokuni
AU - Nakagawa, Akiko
AU - Noguchi, Tomoyuki
AU - Hiwatashi, Akio
AU - Yamashita, Koji
AU - Nagao, Eiki
AU - Kanba, Shigenobu
AU - Honda, Hiroshi
PY - 2010/10/1
Y1 - 2010/10/1
N2 - Previous studies have demonstrated both functional and structural abnormalities in the frontal-striatal-thalamic circuits in obsessive-compulsive disorder (OCD). The purpose of this study was to assess volume abnormalities not only of gray matter (GM), but also of white matter (WM) in patients with OCD using voxel-based morphometry (VBM). Subjects consisted of 23 patients with OCD and 26 normal control subjects. All patients were drug-free for at least 2 weeks before the study. Three-dimensional T1-weighed MR images were obtained in all subjects. Optimized voxel-based morphometry was performed to detect structural difference between the two groups. The patients with OCD demonstrated a significant reduction of GM volume in the bilateral medial prefrontal cortex, right premotor area, right orbitofrontal cortex (OFC), right dorsolateral prefrontal cortex, and bilateral temporal and occipital regions. The OCD patients also showed a significant WM volume increase in the right anterior limb of the internal capsule, right orbitofrontal region, and a significant WM volume reduction in the left anterior cingulate gyrus. Our findings are consistent with previous studies implicating dysfunction of the frontal cortex including the OFC. The results suggested that WM volume abnormalities in the orbitofrontal region, anterior limb of the internal capsule, and anterior cingulate gyrus would imply abnormalities in the pathways of frontal-striatal circuits.
AB - Previous studies have demonstrated both functional and structural abnormalities in the frontal-striatal-thalamic circuits in obsessive-compulsive disorder (OCD). The purpose of this study was to assess volume abnormalities not only of gray matter (GM), but also of white matter (WM) in patients with OCD using voxel-based morphometry (VBM). Subjects consisted of 23 patients with OCD and 26 normal control subjects. All patients were drug-free for at least 2 weeks before the study. Three-dimensional T1-weighed MR images were obtained in all subjects. Optimized voxel-based morphometry was performed to detect structural difference between the two groups. The patients with OCD demonstrated a significant reduction of GM volume in the bilateral medial prefrontal cortex, right premotor area, right orbitofrontal cortex (OFC), right dorsolateral prefrontal cortex, and bilateral temporal and occipital regions. The OCD patients also showed a significant WM volume increase in the right anterior limb of the internal capsule, right orbitofrontal region, and a significant WM volume reduction in the left anterior cingulate gyrus. Our findings are consistent with previous studies implicating dysfunction of the frontal cortex including the OFC. The results suggested that WM volume abnormalities in the orbitofrontal region, anterior limb of the internal capsule, and anterior cingulate gyrus would imply abnormalities in the pathways of frontal-striatal circuits.
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U2 - 10.1016/j.pscychresns.2010.06.011
DO - 10.1016/j.pscychresns.2010.06.011
M3 - Article
C2 - 20833001
AN - SCOPUS:77956951012
VL - 184
SP - 29
EP - 37
JO - Psychiatry Research - Neuroimaging
JF - Psychiatry Research - Neuroimaging
SN - 0925-4927
IS - 1
ER -