血脂蛋白値が上昇した個人の第一度の親族における主要な心血管疾患:レジストリベースのコホート研究
Gustav Kindborg1, Daniel Eriksson Hogling1, Henrike Häbel2
1Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden.
European heart journal
|August 31, 2025
まとめ
脂質タンパク質 (Lp) 濃度が高い人の一級親族は,心血管疾患のリスクが高くなります. カスケードスクリーニングは 早期の介入のために これらのリスクのある親戚を特定できます
科学分野:
- 心血管科学
- 遺伝学
- 流行病学
背景:
- 脂質タンパク質 ((a) [Lp ((a)) は遺伝的に決定され,動脈硬化性心血管疾患と因果関係があります.
- Lp (a) の上昇 (≥80パーセント) を有する個人の第一位親族 (FDR) の心血管リスクは十分に理解されていません.
研究 の 目的:
- 親族のリポプロテイン (a) 値の上昇と,親族の第一級親族における重大な心血管疾患 (MACE) のリスクとの関連を調査する.
- 家庭内のLp (a) レベルとの一致性を評価する.
主な方法:
- スウェーデンのSTRIREGコホートを使用し,Lp (a) 測定値の41,304人,FDRの61,715人 (35歳~69歳) を含む.
- インデックスLp (a) パーセンチル (第50位,第50位,第80位,第80位,第95位,≥95位) に基づいた層化されたFDRと,競合するリスク調整された累積発生率とコックス回帰を用いてMACEの発生率を分析した.
- 関連インデックス個体4243のネスト分析でLp (a) コンコードンスを調べた.
主要な成果:
- 平均19年の追跡期間中,Lp (a) が上昇した患者のFDRは,MACEのリスクが次第に上昇したことを示した.
- 65歳までのMACEの累積的発生率は,親のLp (a) 層で増加した (6. 2%から8. 1%,P< 0. 001).
- 両親のLp (a) 層が高くなった場合,MACEに対する危険比は著しく増加した (例えば,80〜95パーセントでは1. 30).
結論:
- Lp (a) 値が上昇した人の一級親族は,重大な心血管疾患の発生率が著しく高い.
- FDRのカスケードスクリーニングは,遺伝的に高いLp (a) による心血管疾患のリスクが高い個人を特定するための潜在的に効果的な戦略です.
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