2つのコホート研究から得られた微生物群と代謝物の結果
Gaochen Lu1,2, Sheng Zhang1,2, Rui Wang1,2
1Department of Microbiota Medicine & Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, Jiangsu, China.
BMC medicine
|September 1, 2025
まとめ
血清のC4レベルと腸内微生物群は,糞便微生物群移植 (FMT) から最も恩恵を受ける胆酸不吸収 (BAM) の患者を特定することができます. これは炎症性腸疾患 (IBD) の個別治療に役立ちます.
科学分野:
- 胃腸内科
- 微生物群の研究
- バイオマーカーの発見
背景:
- 胆汁酸の吸収不全 (BAM) は,クローン病 (CD) の患者の30%以上に影響します.
- 現在の方法では,炎症性腸疾患 (IBD) の糞便微生物移植 (FMT) の成功を予測する信頼性の高い非侵襲的バイオマーカーが欠けている.
研究 の 目的:
- IBD患者におけるBAMとFMT応答の予測バイオマーカーとして,血清7α-ヒドロキシ-4-コレステン-3-オン (C4) を調査する.
- BAMとBAMのないIBD患者におけるFMTの有効性を評価する.
主な方法:
- FMTを受けた106人のIBD患者と24人の健康な対照群における微生物の代謝のマルチオミック分析.
- 16S rRNAシーケンシングと質量スペクトロメトリーで分析されたFMT前後の糞便と血清のサンプル.
- 原発性胆酸誘発性大腸炎のマウスモデルを用いて,結果を検証した.
主要な成果:
- BAM患者では,FMT後の持続的な臨床反応と寛解率が高くなった (それぞれ66. 67% vs 49. 41% と 52. 38% vs 40. 00%).
- 血清C4濃度はFMT後のBAM患者で有意に低下し (P< 0. 001),症状の改善と相関していた.
- ランダムフォレストモデルは,IBD患者のBAMを正確に予測し,AUCを0. 92と0. 83を達成しました.
結論:
- 血清C4と特定の腸内微生物群のプロフィールは,FMTで持続的な寛解を達成する可能性のあるIBD患者を特定することができます.
- これらのバイオマーカーは,IBD管理のための微生物群を対象とした治療法の正確な適用をサポートします.
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