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2024 Fiscal Year Final Research Report

Development of a new serum diagnostic method for Alzheimer's disease incorporating the concept of modal analysis in vibration engineering

Research Project

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Project/Area Number 19K22898
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 62:Applied informatics and related fields
Research InstitutionNippon Medical School

Principal Investigator

Yamazaki Mineo  日本医科大学, 医学部, 教授 (10277577)

Co-Investigator(Kenkyū-buntansha) 小池 薫  京都大学, 医学研究科, 名誉教授 (10267164)
平川 慶子  日本医科大学, 医学部, 非常勤講師 (30165162)
葛谷 聡  京都大学, 医学研究科, 准教授 (30422950)
柚木 知之  京都大学, 医学研究科, 准教授 (50639094)
金涌 佳雅  日本医科大学, 大学院医学研究科, 大学院教授 (80465343)
Project Period (FY) 2019-06-28 – 2025-03-31
Keywords認知症 / アルツハイマー病 / 血液マーカー / NMRモード解析 / 髄液
Outline of Final Research Achievements

This study explored the potential of biomarkers not only for early diagnosis but also as alternatives to neuropsychological assessments for evaluating symptoms and disease severity. Serum and cerebrospinal fluid (CSF) samples were collected from participants with Alzheimer’s disease (AD), mild cognitive impairment (MCI), and subjective cognitive decline (SCD), along with cognitive function tests such as the Mini-Mental State Examination (MMSE). Evaluation using NMR-mode analysis of serum was conducted.

In 37 cases where CSF Aβ42/40, phosphorylated tau, MRI, cerebral blood flow SPECT, and neuropsychological tests were performed, partial least squares discriminant analysis (PLS-DA) based on NMR-mode analysis was carried out. The results confirmed that serum-based NMR-mode analysis achieved diagnostic accuracy comparable to that of established CSF biomarkers.

Free Research Field

脳神経内科

Academic Significance and Societal Importance of the Research Achievements

アルツハイマー病(AD)の疾患修飾薬であるLecanemabやDonanemabが国内でも使用可能となり、その診断にはアミロイドPETや脳脊髄液検査によるAβ病理の確認が必要とされている。しかし、これらの検査は高額または侵襲的であるため、より簡便で精度の高い血液検査法の開発が強く求められている。現在、血漿を用いたAD診断技術の進展が著しいが、全く異なる手法であるNMRモード解析が髄液検査と同等の識別能力を有することが示された点は重要であり、非侵襲的かつ有用な診断手法としての可能性が期待される。

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Published: 2026-01-16  

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