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Published on: June 17, 2013
The Association of BDNF Val66Met Polymorphism With Trait Anxiety in Panic Disorder
Yoshiaki Konishi1, Hisashi Tanii1, Takeshi Otowa1
1From the Dept. of Psychiatry, Division of Neuroscience, Graduate School of Medicine, Brain Science and Animal Model Research Center, Mie University, Mie, Japan (YK, HT, MO); the Dept. of Neuropsychiatry, Graduate School of Medicine, University of Tokyo, Tokyo, Japan (TO); the Laboratory of Health Education, Graduate School of Education, University of Tokyo, Tokyo, Japan (TS); the Research Center for Panic Disorder, Nagoya Mental Clinic, Nagoya, Japan (HK); and the Dept. of Psychiatry, Tokyo Metropolitan Matsuzawa Hospital, Tokyo, Japan (YO).
Abstract:
Recent studies indicate that early-onset panic disorder (PD) may show distinct clinical characteristics. The authors compared patients with early-onset PD, patients with late-onset PD, and healthy control subjects in terms of brain-derived neurotrophic factor (BDNF), the Val66Met polymorphism, State-Trait Anxiety Inventory (STAI) scores, and the Revised NEO Personality Inventory. In patients with early-onset PD, the STAI-T score was high in the Met/Met group, whereas the STAI-T score of the Val/Val group tended to be higher for healthy control subjects. The conflicting effect of the BDNF genotype between patients with early-onset PD and healthy control subjects suggests that the BDNF Met/Met genotype may increase trait anxiety in early-onset PD.
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