• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Investigation for neural basis of PTSD-like symptoms in autism spectrum disorder.

Research Project

Project/Area Number 19K17116
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52030:Psychiatry-related
Research InstitutionNara Medical University

Principal Investigator

Soichiro Kitamura  奈良県立医科大学, 医学部, 研究員 (10714389)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords自閉スペクトラム症 / PTSD / 幼少期逆境体験 / MRI / 心的外傷後ストレス障害 / PTSD様症状 / 逆境体験 / 灰白質容積低下 / 白質微小構造変化 / 虐待 / 白質微小構造障害
Outline of Research at the Start

自閉スペクトラム症(ASD)患者群と、定型発達(TD)対象群について、脳の形態画像および機能結合情報を得るために頭部MRI検査を行う。また臨床症状評価項目として知能評価としてWAIS-III、認知機能評価としてBACS-J、WCST、ASDの評価としてAQ-J、PTSD様症状などの評価スコアとしてIES-R-J、ASSP、逆境体験評価のためACE、CATSなどを行う。ASD群について、MRIデータより得られた脳容積、皮質厚、密度など皮質情報や白質微小構造、脳領域間機能結合情報と、PTSD様症状や逆境体験の重症度などの臨床症状との関連性について、TD群との比較を交えて解析して検討する。

Outline of Final Research Achievements

In the current study, we investigated structural abnormality of the brain related to posttraumatic steress disorder (PTSD) symptoms in autism spectrum disorder (ASD) . Then, we examined the relationships between the severity of adverse childhood experiences (ACEs) and neurala abnormalities as mentioned above. In ASD, there were singificant correlations between severity of PTSD symptoms and reduced gray matter volume and increased neurite density in the frontal and parietal cortices and precuneus. Additionally, these gray matter strcutural abnormalities were related to severity of ACEs. These finidings were not shown in typically developed persons. Our results found ASD specific brain abnormalities related to PTSD symptoms, which were related to severity of ACEs.

Academic Significance and Societal Importance of the Research Achievements

ASDは様々な精神症状を合併することが知られる。これら二次性精神症状はASDの日常生活や社会機能に深刻な影響を及ぼすこと、薬物療法など治療への反応性に乏しいことがしばしば認められるため、その病態基盤を解明することは重要であると考える。本研究ではASDにしばしば併発するPTSD症状に関連する脳領域の灰白質構造異常と、それらが幼少期逆境体験の重症度と関連することを明らかにした。今回の知見を基にした薬物療法やニューロモデュレーションのような非薬物療法的なアプローチの検討が期待される。またASDにおける幼少期からの適切な養育が青年期以降の脳構造異常や二次性精神症状を予防する可能性が考えられる。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (5 results)

All 2023 2022 2021 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (1 results)

  • [Journal Article] Association of adverse childhood experiences and cortical neurite density alterations with posttraumatic stress disorder symptoms in autism spectrum disorder.2023

    • Author(s)
      Kitamura S, Matsuoka K, Takahashi M, Yoshikawa H, Minami A, Ohnishi H, Ishida R, Miyasaka T, Tai Y, Ochi T, Tanaka T, Makinodan M.
    • Journal Title

      Front Psychiatry

      Volume: 14: 1215429 Pages: 1215429-1215429

    • DOI

      10.3389/fpsyt.2023.1215429

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association of adverse childhood experience-related increase in neurite density with sensory over-responsivity in autism spectrum disorder: A neurite orientation dispersion and density imaging study2023

    • Author(s)
      Kitamura Soichiro、Matsuoka Kiwamu、Takahashi Masato、Hiroaki Yoshikawa、Ishida Rio、Kishimoto Naoko、Yasuno Fumihiko、Yasuda Yuka、Hashimoto Ryota、Miyasaka Toshiteru、Kichikawa Kimihiko、Kishimoto Toshifumi、Makinodan Manabu
    • Journal Title

      Journal of Psychiatric Research

      Volume: 161 Pages: 316-323

    • DOI

      10.1016/j.jpsychires.2023.03.029

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Adverse Childhood Experience Is Associated With Disrupted White Matter Integrity in Autism Spectrum Disorder: A Diffusion Tensor Imaging Study.2022

    • Author(s)
      Yoshikawa H, Kitamura S, Matsuoka K, Takahashi M, Ishida R, Kishimoto N,Yasuno F, Yasuda Y, Hashimoto R, Miyasaka T, Kichikawa K, Kishimoto T, Makinodan M.
    • Journal Title

      Front Psychiatry

      Volume: 12 Pages: 823260-823260

    • DOI

      10.3389/fpsyt.2021.823260

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association of adverse childhood experiences and precuneus volume with intrusive reexperiencing in autism spectrum disorder.2021

    • Author(s)
      Kitamura S, Makinodan M, Matsuoka K, Takahashi M, Yoshikawa H, Ishida R, Kishimoto N, Yasuno F, Yasuda Y, Hashimoto R, Miyasaka T, Kichikawa K, Kishimoto T
    • Journal Title

      Autism Research

      Volume: 14 Issue: 9 Pages: 1886-1895

    • DOI

      10.1002/aur.2558

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 自閉スペクトラム症におけるPTSD様症状の神経基盤に関する研究2019

    • Author(s)
      北村聡一郎
    • Organizer
      第41回日本生物学的精神医学会
    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi