PMID- 24663245 OWN - NLM STAT- MEDLINE DCOM- 20141121 LR - 20240314 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 3 DP - 2014 TI - Multiple white matter volume reductions in patients with panic disorder: relationships between orbitofrontal Gyrus volume and symptom severity and social dysfunction. PG - e92862 LID - 10.1371/journal.pone.0092862 [doi] LID - e92862 AB - Numerous brain regions are believed to be involved in the neuropathology of panic disorder (PD) including fronto-limbic regions, thalamus, brain stem, and cerebellum. However, while several previous studies have demonstrated volumetric gray matter reductions in these brain regions, there have been no studies evaluating volumetric white matter changes in the fiber bundles connecting these regions. In addition, although patients with PD typically exhibit social, interpersonal and occupational dysfunction, the neuropathologies underlying these dysfunctions remain unclear. A voxel-based morphometry study was conducted to evaluate differences in regional white matter volume between 40 patients with PD and 40 healthy control subjects (HC). Correlation analyses were performed between the regional white matter volumes and patients' scores on the Panic Disorder Severity Scale (PDSS) and the Global Assessment of Functioning (GAF). Patients with PD demonstrated significant volumetric reductions in widespread white matter regions including fronto-limbic, thalamo-cortical and cerebellar pathways (p<0.05, FDR corrected). Furthermore, there was a significant negative relationship between right orbitofrontal gyrus (OFG) white matter volume and the severity of patients' clinical symptoms, as assessed with the PDSS. A significant positive relationship was also observed between patients' right OFG volumes and their scores on the GAF. Our results suggest that volumetric reductions in widespread white matter regions may play an important role in the pathology of PD. In particular, our results suggest that structural white matter abnormalities in the right OFG may contribute to the social, personal and occupational dysfunction typically experienced by patients with PD. FAU - Konishi, Jun AU - Konishi J AD - Department of Psychiatry, Graduate School of Medicine, Yokohama City University, Yokohama, Japan. FAU - Asami, Takeshi AU - Asami T AD - Department of Psychiatry, Graduate School of Medicine, Yokohama City University, Yokohama, Japan. FAU - Hayano, Fumi AU - Hayano F AD - Department of Psychiatry, Graduate School of Medicine, Yokohama City University, Yokohama, Japan. FAU - Yoshimi, Asuka AU - Yoshimi A AD - Department of Psychiatry, Graduate School of Medicine, Yokohama City University, Yokohama, Japan. FAU - Hayasaka, Shunsuke AU - Hayasaka S AD - Department of Psychiatry, Graduate School of Medicine, Yokohama City University, Yokohama, Japan. FAU - Fukushima, Hiroshi AU - Fukushima H AD - Department of Psychiatry, Graduate School of Medicine, Yokohama City University, Yokohama, Japan. FAU - Whitford, Thomas J AU - Whitford TJ AD - School of Psychology, University of New South Wales, Sydney, New South Wales, Australia. FAU - Inoue, Tomio AU - Inoue T AD - Department of Radiology, Graduate School of Medicine, Yokohama City University, Yokohama, Japan. FAU - Hirayasu, Yoshio AU - Hirayasu Y AD - Department of Psychiatry, Graduate School of Medicine, Yokohama City University, Yokohama, Japan. LA - eng PT - Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140324 PL - United States TA - PLoS One JT - PloS one JID - 101285081 SB - IM MH - Adult MH - Cerebral Cortex/*diagnostic imaging MH - Female MH - Humans MH - Magnetic Resonance Imaging MH - Male MH - Organ Size MH - Panic Disorder/*diagnostic imaging/drug therapy MH - Radiography MH - *Severity of Illness Index MH - Social Behavior Disorders/*diagnostic imaging/drug therapy PMC - PMC3963974 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2014/03/26 06:00 MHDA- 2014/12/15 06:00 PMCR- 2014/03/24 CRDT- 2014/03/26 06:00 PHST- 2013/10/23 00:00 [received] PHST- 2014/02/26 00:00 [accepted] PHST- 2014/03/26 06:00 [entrez] PHST- 2014/03/26 06:00 [pubmed] PHST- 2014/12/15 06:00 [medline] PHST- 2014/03/24 00:00 [pmc-release] AID - PONE-D-13-43360 [pii] AID - 10.1371/journal.pone.0092862 [doi] PST - epublish SO - PLoS One. 2014 Mar 24;9(3):e92862. doi: 10.1371/journal.pone.0092862. eCollection 2014.