臨床症状
Yara Alkhodair1,2, Imogene M Scott1, Abdulrahman Alzahrani1
1Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 26, 2025
まとめ
LATE-NC(辺縁系優位の加齢性TDP-43脳症の神経病理学的変化)は、アルツハイマー病および/またはレビー小体病を有する個人の神経精神症状全体を増加させませんでした。幻覚はLATE-NC群でより頻度が低かったです。
科学分野:
- 神経病理学
- 精神神経医学
- 老年医学
背景:
- LATE-NC(辺縁系優位の加齢性TDP-43脳症の神経病理学的変化)は、アルツハイマー病(AD)、レビー小体病(LBD)、および血管性病理と併存することがよくあります。
- AD/LATE-NCにおける神経精神症状はますます研究されていますが、混合AD/LBDおよびLBDにおけるそれらの影響は十分に調査されていません。
研究 の 目的:
- AD、LBD、および混合AD/LBDを有する個人で、LATE-NCの有無にかかわらず、神経精神症状プロファイルを調査および比較すること。
- これらの患者群における神経精神症状の重症度および進行に対するLATE-NCの影響を分析すること。
主な方法:
- UBCH-CARDデータベースからの剖検で確認された症例の後ろ向きコホート研究。
- 年齢および神経病理に基づいて、LATE-NC陽性(LATE+)症例42例とLATE-NC陰性(LATE-)症例38例をマッチング。
- 神経精神症状質問票(NPI-Q)を使用して神経精神症状を評価し、線形混合効果モデルを使用して経時的データを分析しました。
主要な成果:
- LATE+群とLATE-群の間で、神経精神症状の全体的な重症度または経時的な負担に有意な差は見られませんでした。
- 無関心、幻覚、食欲の変化はLATE+群でより軽度でした。
- 共存する病理を調整した後でも、幻覚はLATE+群で有意に頻度が低かったです。
結論:
- LATE-NCは、ADおよび/またはLBDを有する個人の神経精神症状の全体的な負担を悪化させないようです。
- LATE+群における幻覚頻度の低下は、レビー小体病理に関連する可能性があり、さらなる調査に値します。
- 症状進行の経時的モデリングは、LATE-NCの影響を完全に理解するためにさらなる分析が必要です。
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