家族性ヒポアルファリポプロテイン血症におけるプラズマC反応性タンパク質の増加:炎症を誘発する症状?
Tiziana Sampietro1, Federico Bigazzi, Beatrice Dal Pino
1CNR Institute of Clinical Physiology, Pisa, Italy. tizisamp@ifc.cnr.it
Circulation
|January 5, 2002
まとめ
低HDLコレステロールによって特徴づけられる家族性ヒポアルファリポプロテイン症は,より高いC反応性タンパク質 (CRP) レベルと関連しており,炎症の増加を示しています. この炎症は,これらの患者の冠動脈疾患によって悪化します.
科学分野:
- 心血管医学 心血管医学
- 遺伝学 遺伝学とは
- バイオケミストリー バイオケミストリー
背景:
- 高密度脂質タンパク質 (HDL) は,動脈硬化症の逆行に役割を果たし,抗炎症性を持っています.
- 家族性ヒポアルファリポプロテイン症は,著しく低いHDLコレステロール値によって定義される遺伝疾患です.
- この研究では,家族性ヒポアルファリポプロテイン血症と炎症マーカー,特にC反応性タンパク質 (CRP) の上昇との潜在的な関連を調べています.
研究 の 目的:
- 家族性ヒポアルファリポプロテイン血症が,C反応性タンパク質 (CRP) のレベル上昇と関連しているかどうかを調査する.
- 家族性低アルファリポプロテイン血症の患者におけるCRPレベルと冠動脈動脈硬化症の存在の関係を調べる.
主な方法:
- 家族性ヒポアルファリポプロテイン血症患者50人と,健康な対照群64人を対象とした比較研究.
- HDLコレステロール,アポリポプロテインAI,トリグリセリド,総コレステロール,LDLコレステロールを含む脂質プロフィールの分析.
- 患者グループと対照群の間で血のC反応性タンパク質 (CRP) レベルを測定および比較.
主要な成果:
- 家族性ヒポアルファリポプロテイン症の患者は,対照群と比較して,著しく低いHDLコレステロールとアポリポプロテインAI,および高いトリグリセリドを示した.
- 血CRP濃度は,家族性ハイポアルファリポプロテイン血症の患者において,健康な対照群と比較して,有意に上昇した.
- CRPレベルは,冠動脈動脈硬化症の患者でより高く,HDLコレステロールとアポリポプロテインAIと逆相関を示しました.
結論:
- 他の炎症的徴候のない家族性低アルファリポプロテイン血症におけるCRPの上昇は,炎症性メカニズムの増大を示唆する.
- 冠動脈動脈硬化疾患の存在は,家族性低アルファリポプロテイン血症を有する個体において,これらの炎症性プロセスを悪化させる.
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