イリタブル・ブール・シンドロームを持つ認知的に健康な成人の認知機能に対する糞便微生物移植の効果:ランダム化,プラセボ制御,ダブルブラインド試験プロトコル
Sara Alaeddin1, Yanna Ko1, Genevieve Z Steiner-Lim2,3
1School of Medicine, Western Sydney University, Penrith 2751, Australia.
Methods and protocols
|August 27, 2025
まとめ
便微生物移植 (FMT) は,イライラ性腸症候群 (IBS) の成人の認知能力を改善する可能性があります. このパイロット試験は FMTが実現可能で 認知機能とIBSの症状に 潜在的に有益であることを示唆しています
科学分野:
- 微生物学
- 神経科学
- 胃腸内科
背景:
- 糞便微生物移植 (FMT) は,消化器系および神経疾患の微生物群-腸-脳軸を標的とした新興治療法である.
- 腸内微生物の構成が 認知機能に及ぼす影響は知られていますが 健康な成人に及ぼす影響は まだ十分に研究されていません
- 刺激性腸症候群 (IBS) は,腸内微生物群の変化と潜在的認知効果と関連しています.
研究 の 目的:
- IBSと診断された成人におけるFMTの実現可能性と認知効果を調査する.
- FMTが認知能力,IBSの症状の重さ,気分,関連するバイオマーカーに与える影響を評価する.
- FMTが腸内微生物群に及ぼす長期的な影響と 認知機能との関係を調べる
主な方法:
- IBSの成人を対象としたランダム化,ダブルブラインド,プラセボ対照試験です.
- 参加者は,FMTまたはプラセボの単一の直腸留置エネマを受けた.
- 認知能力は,ケンブリッジ神経心理テスト自動化バッテリー (CANTAB) を使用して,12ヶ月までの複数の時間点で評価されました.
主要な成果:
- この研究は,FMTがプラセボよりも,実践効果を超えて,より大きな認知改善をもたらすかどうかを決定することを目的とした.
- 二次的アウトカムには,IBSの症状の重度と気分の変化が含まれていました.
- 三次的アウトカムには,微生物組成と血バイオマーカー (炎症,SCFA,トリプトファンの代謝) の分析が含まれていた.
結論:
- この発見は,FMTの安全性と有効性の評価に寄与すると見込まれています.
- この研究は,IBSと認知機能の文脈における腸-脳相互作用の理解を深めるでしょう.
- この研究は,IBS患者におけるFMTの持続的な長期的認知効果を想定しています.
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