慢性便秘の高齢者におけるエロビキシバットの便/ガス配分と便胆酸の改善
Noriaki Manabe1, Emiko Bukeo1, Takako Konishi1
1Division of Endoscopy and Ultrasonography, Department of Laboratory Medicine Kawasaki Medical School Okayama Japan.
まとめ
エロビキシバット治療は,慢性便秘の高齢患者の便秘指数を有意に低下させた. この改善は糞便の胆酸濃度の増加と相関しており,腸機能の改善のメカニズムを示唆しています.
科学分野:
- 胃腸内科
- 薬理学について
背景:
- 腸の便とガスの分布は腸の機能の重要な指標です.
- 便秘指数は,トランサブドミナル超音波で測定され,間接的に大腸通過時間を反映します.
- エロビキシバット (Elobixibat) は,イレアル胆酸トランスポーター阻害剤で,慢性便秘 (CC) の患者の排泄頻度を増やすことが知られている.
研究 の 目的:
- CC患者のエモキシバット治療後の便秘指数の変化を評価する.
- 便秘指数の変化と糞便の胆酸濃度との関係を調べる
主な方法:
- 予備的,ランダム化,ダブルブラインド,プラセボ対照試験が行われました.
- 17人の高齢のCC患者 (≥60歳) は,エモキシバットまたはプラセボを1週間毎日投与された.
- 糞便/ガス分布と糞便の胆酸濃度が,治療前と後に分析された.
主要な成果:
- エロビキシバットはプラセボと比較して便秘の指数を有意に低下させた.
- 便秘指数の変化と全便胆酸濃度の変化との間に有意な負の相関が観察されました.
結論:
- エロビキシバットは,CC患者の糞便の胆酸濃度を増大させ,便秘指数を下げます.
- これは,エモキシバットが糞便の胆酸濃度を増やすことで結腸経路時間を短縮することを示唆しています.
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