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今月の特集1 認知症待ったなし!

認知症の早期発見・介入のためのMCIおよびプレクリニカルADの血液バイオマーカーへの期待

著者: 内田和彦12 鈴木秀昭3

所属機関: 1筑波大学医学医療系 2筑波大学大学院人間総合科学研究科 3株式会社MCBI

ページ範囲:P.1530 - P.1536

Point

●2015年の世界の認知症の患者数は約4,680万人である.このまま何もしなければ世界の高齢化社会の進行とともにその数は20年ごとに倍になり,2050年には1億3,150万人になる.

●認知症の60〜80%を占めるAlz-heimer型認知症(AD)は連続性(continuum)のある疾患である.前駆段階の軽度認知障害(MCI due to AD),さらに臨床症状のないプレクリニカル期(プレクリニカルAD)での介入がその発症予防に重要である.

●プレクリニカルADからMCI,ADへの病態進行を反映する血液バイオマーカーはADの予防を実現できる極めて有効な手段である.

●バイオマーカーとしては,アミロイドβ蛋白質(Aβ)やタウ蛋白質(tau)よりも,シナプス障害とその誘因のひとつである補体系などを介した炎症が注目されている.

参考文献

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出版社:株式会社医学書院

電子版ISSN:1882-1367

印刷版ISSN:0485-1420

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