胎児の構造的異常の産前評価のための全ゲノムシーケンシング:将来的な多センター研究
Zhi Gao1, Meimei Liu2, Jinna Jiang3
1Genetics and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
American journal of obstetrics and gynecology
|August 27, 2025
まとめ
全ゲノム配列解析 (WGS) は胎児の構造的異常を 産前診断するための強力なツールです トリオベースのWGSは,現在の方法に対する包括的な代替手段を提供し,診断率を向上させ,ラボのワークフローを簡素化します.
科学分野:
- ゲノミクス
- 産前診断
- 医学 遺伝学
背景:
- 全ゲノムシーケンシング (WGS) の臨床的有効性は,産後で確立される.
- 胎児異常の産前診断のためのWGSに関する研究は限られている.
研究 の 目的:
- 産前診断のための全ゲノムシーケンシング (WGS) を前向きに評価する.
- WGSの性能をコピー番号変異配列 (CNV-seq) とエクソーム配列 (ES) と比較する.
主な方法:
- 胎児の構造的異常を有する96の親胎三重体を分析した.
- 全ゲノムシーケンシング (WGS) は,CNV-seqとESと並行して行われました.
- 既存のACMG,AMP,ClinGenのガイドラインを用いて変種を分類した.
主要な成果:
- CNV-seqは5. 2%の診断率をもたらし,トリオ-ESは27. 1%の診断率をもたらした.
- CNV-seqとTrio-ESを組み合わせると,診断率は31. 2%に達した.
- Trio-WGSは診断率を34.4%に増加させ,複雑な再編成とUPD15を含む3つの追加症例を他の方法からのすべての変異を特定しました.
結論:
- トリオベースのWGSは,CNV-seqとESに対する有効な代替手段である.
- WGSは胎児の構造的異常について より包括的なゲノム分析を提供します.
- WGSは,実験室のワークフローを単一のテストに統合することを可能にします.
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