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2024 Fiscal Year Final Research Report

The Role of the Arachidonic Acid Cascade in Sudden Cardiac Death among Patients with Schizophrenia

Research Project

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Project/Area Number 20K22689
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0704:Neuroscience, brain sciences, and related fields
Research InstitutionYokohama City University

Principal Investigator

HATTORI Saki  横浜市立大学, 附属病院, 助教 (30880124)

Project Period (FY) 2020-09-11 – 2025-03-31
Keywords統合失調症 / 抗精神病薬 / 自律神経活動 / 副作用 / 持効性注射剤
Outline of Final Research Achievements

This study demonstrated that antipsychotic medications can adversely affect autonomic nervous system activity in patients with schizophrenia. The extent of this effect varies not only among different atypical antipsychotics, but also depending on the formulation-oral versus long-acting injectable. Notably, in the case of aripiprazole, the long-acting injectable formulation was suggested to cause less autonomic dysfunction compared to the oral formulation. Further research is needed to elucidate the detailed biological mechanisms by which antipsychotics affect autonomic nervous system activity.

Free Research Field

臨床精神薬理学

Academic Significance and Societal Importance of the Research Achievements

統合失調症では、健常者と比較し10年以上生命予後が短いことが明らかとなっており、心血管障害による死亡が多いが、本研究により、その背景に、抗精神病薬の剤型や種類を介した、自律神経活動への悪影響があることが示唆された。本研究成果は、統合失調症患者の生命予後改善に寄与すると考えられる。今後は、さらにその生物学的メカニズムを明らかにすることで、自律神経活動障害を生じにくい薬物の創薬および、予防と治療的アプローチに繋げたい。

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Published: 2026-01-16  

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