血液微量サンプリングのためのRPLCおよびHILICベースの非標的メタボロミクスワークフロー
Pauline Couacault1, Michael Witting2,3
1Metabolomics and Proteomics Core, Helmholtz Zentrum München, Ingostädter Landstraße 1, 85764, Neuherberg, Germany.
Metabolomics : Official journal of the Metabolomic Society
|February 9, 2026
まとめ
血液微量サンプリング(BμS)は、メタボロミクスにおいて侵襲性の低い代替法を提供します。最適化された抽出およびLC-MSメソッドは、乾燥血液スポットおよび体積吸収性微量サンプリングからの多様な代謝物質の検出を強化し、さまざまな代謝経路のカバレッジを向上させます。
科学分野:
- 分析化学
- 生化学
- メタボロミクス
背景:
- 血液微量サンプリング(BμS)は、内因性代謝物質を分析するための低侵襲技術です。
- 乾燥血液スポット(DBS)および体積吸収性微量サンプリング(VAMS)は、主要なBμSフォーマットです。
- BμSはメタボロミクスに適しており、従来の血液および血漿サンプリングの代替手段を提供します。
主な方法:
- 極性代謝物質のための2つの新しいHILIC-MS/MSメソッドを開発および最適化しました。
- 中〜非極性代謝物質のために社内RPLC-MSメソッドを利用しました。
- 5つの抽出手順を調査し、DBSおよびVAMSのワークフローを最適化しました。
結論:
- 開発された抽出およびLC-MS方法論は、BμSからの包括的な代謝物質プロファイリングを提供します。
- このアプローチは代謝物質カバレッジを向上させ、DBSとVAMSの両方に適用可能です。
- 最適化されたプロトコルは、低侵襲血液サンプルを使用した非標的メタボロミクス分析を容易にします。
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