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アルツハイマー病におけるタクリンの作用
S A Eagger1, R Levy, B J Sahakian
1Institute of Psychiatry, Denmark Hill, London, UK.
Lancet (London, England)
|April 27, 1991
まとめ
タクリン (テトラヒドロアミノアクリジン) とレシチンを併用すると,MMSEとAMTSで測定されたアルツハイマー病患者の認知機能が著しく改善されました. 肝臓酵素の上昇などの副作用が認められたが,認知上の利益は相当なものであった.
科学分野:
- 神経科学は神経科学である.
- 薬理学 薬理学とは
- クリニック・トライアル 臨床試験
背景:
- アルツハイマー病 (AD) は,認知機能の低下を特徴とする進行性神経変性障害です.
- タクリン (テトラヒドロアミノアクリジン) は,AD治療のために研究されているアセチルコリネステラゼ阻害剤です.
- レシチンは,フォスフォリピドサプリメントであり,時には添付として使用されます.
研究 の 目的:
- アルツハイマー病の可能性のある患者におけるタクリンとレシチンの有効性と安全性を評価する.
- アクティブ・トリートメントとプラセボの効果をランダム化,ダブルブラインド,クロスオーバー・デザインを用いて比較する.
主な方法:
- ランダム化,ダブルブラインド,プラセボ対照,クロスオーバー研究で,ADの可能性のある89人の患者が参加しました.
- 患者は13週間,最大許容量のタクリン (最大150mg/日) +レシチン (10.8g/日) またはプラセボを投与され,その後4週間の洗浄とクロスオーバーを受けた.
- 認知的評価には,ミニメンタルステート試験 (MMSE),略称メンタルテストスコア (AMTS) および介護者の日常生活活動の評価 (ADL) が含まれていました.
主要な成果:
- タクリンとレシチンは,プラセボと比較してMMSEスコアに有意な有益な効果を示した (p < 0.0001),患者の45%が改善を示した.
- AMTSスコアでも同様の改善が見られた (p = 0.0001).
- ADLスコアに関して,治療による有意な効果は認められなかった. 肝臓酵素の投与量に依存した,可逆的な上昇は一般的であった.
結論:
- タクリンとレシチンは,アルツハイマー病患者の認知機能に顕著な効果をもたらし,6~12ヶ月の疾患進行の遅延に匹敵する.
- 治療は,個々の反応が異なっていたものの,主要な認知指標に肯定的な影響を及ぼしました.
- 肝臓酵素の上昇は懸念事項ですが,それらは逆行性であり,臨床的関連性は個々の判断を必要とします.
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