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Updated: Feb 20, 2026

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Isolation and Analysis of Plasma Lipoproteins by Ultracentrifugation
Published on: January 28, 2021
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APOA5 c.553G>T関連高トリグリセリデミアのリバーシブルに低下したリポプロテインリパゼは,ペマフィブラートで治療に成功しました
Shozo Miyauchi1, Yuji Utsunomiya1, Masashi Okamoto1
1Department of Diabetes and Endocrinology, Ehime Prefectural Central Hospital, Matsuyama, Ehime, Japan.
Endocrinology, diabetes & metabolism case reports
|February 18, 2026
まとめ
希少な同同位体APOA5変異は,ライフスタイルの変化に反応しない重度の高トリグリセリデミアを引き起こしました. ペマフィブラート療法はトリグリセリドレベルを正常化し,リポタンパク質リパース機能を改善し,遺伝性高トリグリセリデミアの有効性を実証しました.
科学分野:
- 遺伝学と分子生物学について
- 心血管医学 心血管医学
- メタボリック障害 メタボリック障害
背景:
- 重度の高トリグリセリデミアは,脂質代謝に影響を与える遺伝的変異に起因する可能性があります.
- アポリポプロテインA5 (APOA5) 変異はトリグリセリド調節に関与しています.
- ハイパートリグリセリデミアの遺伝的根拠を理解することは,効果的な治療に不可欠です.
研究 の 目的:
- トリグリセリド値が上昇した患者の重度の高トリグリセリデミアの遺伝的原因を調査する.
- APOA5変異に関連する高トリグリセリデミアの管理におけるペマフィブラートの治療効果を評価する.
- リポプロテインリパゼ (LPL) に関連する高トリグリセリデミアのAPOA5変異の役割を調査する.
主な方法:
- 重度の高トリグリセリデミアの47歳の女性の症例報告.
- APOA5およびその他の脂質代謝遺伝子の変異を特定するための遺伝子検査.
- リポプロテイン分化およびヘパリン化後のリポプロテインリパゼ (PH-LPL) レベル評価.
- ペマフィブラート (選択的PPARα調節剤) の治療と,脂質プロファイルとPH-LPLレベルのモニタリング.
主要な成果:
- 同位体APOA5 c.553G>T変異が重度の高トリグリセリデミア (TG 1,047 mg/dL) とPH-LPLレベル低下の原因として特定されました.
- ペマフィブラート治療は,脂質レベルの顕著な改善,キロミクロンの完全な解消,PH-LPLレベルの正常化を2ヶ月以内に導きました.
- 患者の状態は,二次的な原因を除外して,V型高脂タンパク質血症と一致していました.
結論:
- ホモジゴスなAPOA5変異は,潜在的にLPLタンパク質レベルが低下することによって,脂解を損なうことで重度の高トリグリセリデミアにつながる可能性があります.
- ペマフィブラートは,APOA5に関連する高トリグリセリデミアの管理において重要な治療効果を示し,脂質プロファイルとLPL機能の両方を改善します.
- 遺伝性高トリグリセリデミアを特定し,選択的PPARα調節剤の使用を含む治療戦略をガイドするために,正確な遺伝子診断は不可欠です.
キーワード:
アポリポプロテイン A-Vハイパーキロミクロネミア症候群ハイパルトリグリセリデミアリポプロテインリペアゼ (lipoprotein lipase) とはペマフィブラート (Pemafibrate) とはさらに関連する動画
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