スタチン,高密度の脂質タンパク質コレステロール,冠動脈動脈硬化症の回復
Stephen J Nicholls1, E Murat Tuzcu, Ilke Sipahi
1Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio 44195, USA. nichols1@ccf.org
JAMA
|February 8, 2007
まとめ
スタチンの治療は,低密度脂質タンパク質コレステロール (LDL-C) を著しく低下させ,高密度脂質タンパク質コレステロール (HDL-C) を増加させ,冠動脈動脈硬化症の回復につながります. これらの脂質の変化,特に実質的なLDL-C減少とHDL-C増加は,スタチンの利点の鍵です.
科学分野:
- 心臓病学 心臓病学
- リピドロジーは,脂質学です.
- 薬理学 薬理学とは
背景:
- スタチンは低密度の脂質タンパク質コレステロール (LDL-C) を低下させ,冠動脈動脈硬化症の進行を遅らせることが証明されています.
- 高密度脂質タンパク質コレステロール (HDL-C) のスタチン誘発による変化が疾患進行に与える影響は不明である.
研究 の 目的:
- LDL-CとHDL-Cのレベルの変化と動脈動脈腫の負担の間の相関を検証する.
- スタチン療法中のアテロマ回帰の予測要因を特定する.
主な方法:
- アンジオグラフィック冠動脈疾患の1455人の患者を対象とした4つの予期的なランダム化試験のポストホック分析.
- 連続型血管内超音波検査は,スタチン治療の18〜24ヶ月間にわたる動脈動脈腫の体積の変化を評価するために使用されました.
- コアラボの分析により,超音波データ解釈の一貫性が確保された.
主要な成果:
- スタチンの治療により,LDL-Cは23.5%低下し,HDL-Cは7.5%増加しました. LDL-CとHDL-Cの比率は26.7%減少した.
- アテロマの体積は平均2.4mm3の減少を示し,アテロマの体積パーセントは0.5%増加した.
- 多変量分析により,LDL-Cの平均値とHDL-Cの上昇が,アテロマ回帰の独立した予測因子として特定されました. LDL-Cが87.5 mg/dL未満で,HDL-Cが7.5%以上増加したときに,有意な回帰が観察されました.
結論:
- スタチンの治療は,冠動脈動脈硬化症の逆行を促進し,特にLDL-Cが大幅に減少し,HDL-Cが増加した場合は特に効果的です.
- 研究結果は,LDL-Cの減少とHDL-Cの増加の両方がスタチンの心血管上の利点に寄与することを示唆しています.
- この回帰が改善された臨床結果と心血管疾患の減少につながるかどうかを判断するために,さらなる研究が必要である.
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