胆酸の変異があまり評価されていない
Ipsita Mohanty1, Helena Mannochio-Russo1, Joshua V Schweer2
1Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, USA.
Cell
|March 12, 2024
まとめ
研究者は新しいMS/MSスペクトルライブラリを使用して,これまで知られていなかった多数の胆酸変異を発見しました. ポリアミン胆固醇を含むこれらの変異はヒトで発見され,食事によって変化し,健康と疾患の研究に影響を与えます.
科学分野:
- メタボロミクス
- 生物化学
- 微生物の代謝
背景:
- ホストと微生物の代謝による胆酸の変化は完全に理解されていません.
- 健康と病気におけるそれらの役割の研究には,これらの変更の包括的な理解が不可欠です.
研究 の 目的:
- 新しい胆酸変異を特定するためのリソースを作成します.
- ヒトにおける特定の胆酸変異の流行と食事への影響を調査する.
主な方法:
- 胆酸選択イオンパターンのための公開タンデム質量スペクトロメトリー (MS/MS) の 12 億個のスペクトルをフィルターしました.
- 変異を中心とした胆酸MS/MSのスペクトルライブラリを開発した.
- ポリアミン胆固醇を含む新陳代謝物質を特定するために図書館を利用した.
主要な成果:
- 種と微生物の培養物でこれまでに認識されていない 胆酸の変異を数千個特定しました
- 発見されたポリアミンの胆汁アミダートは肉食動物に多く存在し,人間にも存在します.
- 食事の変化に伴い,ヒトのポリアミン胆氨酸濃度の変化が観察された.
結論:
- 胆汁酸の変異は以前よりかなり多い.
- 公開されているメタボロミクスデータは,新しい代謝産物を発見するために利用できます.
- 開発されたMS/MSライブラリは,健康と病気における胆酸機能の研究を進めます.
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