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Effects of BDNF Val66Met Polymorphism on White Matter Microalterations of the Corpus Callosum in Patients with Panic Disorder in Korean Populations

Psychiatry Investigation 2020년 17권 10호 p.967 ~ 975
김현주, 방민지, 이강수, 최태규, 박천일, 이상혁,
소속 상세정보
김현주 ( Kim Hyun-Ju ) - CHA University School of Medicine CHA Bundang Medical Center Department of Psychiatry
방민지 ( Bang Min-Ji ) - CHA University School of Medicine CHA Bundang Medical Center Department of Psychiatry
이강수 ( Lee Kang-Soo ) - CHA University School of Medicine CHA Bundang Medical Center Department of Psychiatry
최태규 ( Choi Tai-Kiu ) - CHA University School of Medicine CHA Bundang Medical Center Department of Psychiatry
박천일 ( Park Chun-Il ) - CHA University School of Medicine CHA Bundang Medical Center Department of Psychiatry
이상혁 ( Lee Sang-Hyuk ) - CHA University School of Medicine CHA Bundang Medical Center Department of Psychiatry

Abstract


Objective: The brain-derived neurotrophic factor (BDNF) Val66Met (rs6265) polymorphism is suggested to be associated with the pathophysiology of anxiety disorders, including panic disorder (PD). Although the fronto-limbic white matter (WM) microstructures have been investigated, the corpus callosum (CC) has not yet been studied regarding its relationship with BDNF Val66Met polymorphism in PD.

Methods: Ninety-five PD patients were enrolled. The Neuroticism, the Anxiety Sensitivity Inventory-Revised, Panic Disorder Severity Scale, and Beck Depression Inventory-II (BDI-II) were administered. Voxel-wise statistical analysis of diffusion tensor imaging data was performed within the CC regions using Tract-Based Spatial Statistics.

Results: The GG genotype in BDNF Val66Met polymorphism has significantly higher fractional anisotropy (FA) values of the body and splenium of the CC, neuroticism and depressive symptom scale scores than the non-GG genotype in PD. The FA values of the body of the CC in the two groups were significantly different independent of age, sex, neuroticism, and BDI-II.

Conclusion: Our findings demonstrate that the BDNF Val66Met polymorphism is associated with WM connectivity of the body and splenium of the CC, and may be related to neuroticism and depressive symptoms in PD. Additionally, the CC connectivity according to BDNF polymorphism may play a role in the pathophysiology of PD.

키워드

Panic disorder; Brain-derived neurotrophic factor; Corpus callosum; Neuroticism; Diffusion tensor imaging

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