Alternative Title自閉スペクトラム症における幼少期逆境体験と白質微小構造障害の関連性についての検討
Note (General)type:Thesis
Individuals with autism spectrum disorder (ASD) have an increased risk of adverse childhood experiences (ACEs) than typically developed (TD) children. Since multiple lines of studies have suggested that ACEs are related to myelination in the frontal lobe, an exposure to ACEs can be associated with white matter microstructural disruption in the frontal lobe, which may be implicated in subsequential psychological deficits after the adulthood. In this study, we investigated the relationship between ACEs and microstructural integrity on frontal lobe-related white matter tracts using diffusion tensor imaging in 63 individuals with ASD and 38 TD participants. Using a tractography-based analysis, we delineated the uncinate fasciculus (UF), dorsal cingulum (Ci), and anterior thalamic radiation (ATR), which are involved in the neural pathology of ASD, and estimated each diffusion parameter. Compared to the TD participants, individuals with ASD displayed significantly lower fractional anisotropy (FA) and higher radial diffusivity (RD) in the left ATR. Then, ASD individuals exposed to severe ACEs displayed higher RD than those exposed to mild ACEs and TD participants in the left ATR. Moreover, the severity of ACEs, particularly neglect, correlated with lower FA and higher RD in the left UF and ATR in individuals with ASD, which was not observed in TD participants. These results suggest that an exposure to ACEs is associated with abnormality in the frontal lobe-related white matter in ASD.
博士（医学）・甲第843号・令和4年6月29日
Copyright © 2022 Yoshikawa, Kitamura, Matsuoka, Takahashi, Ishida, Kishimoto, Yasuno, Yasuda, Hashimoto, Miyasaka, Kichikawa, Kishimoto and Makinodan. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY: https://creativecommons.org/licenses/by/4.0/). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
identifier:Frontiers in psychiatry Vol.12 Article No.823260 (2022 Jan)
identifier:16640640
identifier:http://ginmu.naramed-u.ac.jp/dspace/handle/10564/4064
identifier:Frontiers in psychiatry, 12: Article No.823260
Collection (particular)国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文
Date Accepted (W3CDTF)2022-08-08T06:02:54+09:00
Data Provider (Database)国立国会図書館 : 国立国会図書館デジタルコレクション