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2024 Fiscal Year Final Research Report

Establishing a diagnostic method for the preclinical stage of sporadic late-onset Alzheimer's disease based on retinal layer thickness and genetic and environmental factors

Research Project

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Project/Area Number 21K10440
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 58030:Hygiene and public health-related: excluding laboratory approach
Research InstitutionTohoku University

Principal Investigator

Taira Makiko  東北大学, 東北メディカル・メガバンク機構, 助教 (60792140)

Co-Investigator(Kenkyū-buntansha) 布施 昇男  東北大学, 東北メディカル・メガバンク機構, 教授 (10302134)
川崎 良  大阪大学, 大学院医学系研究科, 教授 (70301067)
三木 篤也  愛知医科大学, 医学部, 教授 (30437404)
小島 要  東北大学, 東北メディカル・メガバンク機構, 講師 (10646988)
田高 周  東北大学, 東北メディカル・メガバンク機構, 講師 (60815463)
Project Period (FY) 2021-04-01 – 2024-03-31
Keywords晩期発症型アルツハイマー型認知症 / 網膜層厚測定 / ApoE
Outline of Final Research Achievements

This research aims to establish diagnostic indicators capable of early onset prediction from retinal layer thickness, considering the mechanisms of changes in retinal thickness induced by genetic and environmental factors during the preclinical phase of late-onset Alzheimer’s disease (LOAD). LOAD currently accounts for approximately half of all dementia patients. The diagnostic indicators established in this study, which are anticipated to serve as alternatives to costly and time-consuming MRI and PET imaging, could greatly simplify the assessment of the health status of many elderly individuals in the preclinical phase of LOAD. The urgent societal demand for preventive healthcare tailored to individual disease progression has grown significantly in recent years, underscoring the necessity of this research.

Free Research Field

臨床神経内科、神経遺伝統計解析、神経画像解析

Academic Significance and Societal Importance of the Research Achievements

学術的意義として、1. 網膜においてのLOAD前臨床期に網膜神経節細胞消失を伴う網膜神経線維層(RNFL)の菲薄化、 2. LOADの予後規定因子の一つとしての、ApoE遺伝子ε4の保有とKlotho遺伝子ヘテロ接合性変異の保有 を挙げた。 特に2に関する既報の検討はほぼ全て非日本人における成果と考えられており、社会的意義としても、日本人集団での検討は前例をみないと考えている。本研究の成果をもとに、異動先(順天堂大学医学部神経学講座)において、引き続き研究成果を論文作成に換える予定である。

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Published: 2026-01-16  

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