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腸内膜機能不全とそれに続く,高血圧患者における球膜の濾過率の低下
Francesco Perticone1, Raffaele Maio, Maria Perticone
1Full Professor of Internal Medicine, Department of Medicina Sperimentale e Clinica, Campus Universitario Salvatore Venuta di Germaneto, Viale Europa, Catanzaro, Italy. perticone@unicz.it
Circulation
|July 14, 2010
まとめ
アセチルコリン刺激による血管拡張の減少によって示される内皮機能不全は,高血圧患者における推定グルメルーラフィルタレーション率 (eGFR) の低下がより迅速であるとの関連がある. これは,慢性腎疾患の進行における重要な要因として内皮機能を強調しています.
科学分野:
- ネフロロジーはネフロロジーを用います.
- 心血管医学 心血管医学
- 高血圧の研究 高血圧の研究
背景:
- 慢性腎臓病 (CKD) は,心血管疾患と死亡率の重要な危険因子です.
- 腎不全の初期に内皮機能不全が起こることがありますが,CKDの進行におけるその役割は不明です.
- 本研究は,精性高血圧における推定グルメルフィルタレーション率 (eGFR) 低下に対する内皮機能の影響を前向きに調査しています.
研究 の 目的:
- 治療を受けていない高血圧患者の内皮機能とEGFR低下率との関連性を評価する.
- 内皮機能が本質的な高血圧における腎機能の悪化を予測するかどうかを判断する.
- eGFRの変化に影響を与える心血管疾患の危険因子を特定する.
主な方法:
- 血清クレアチニン≤1.5 mg/dLの治療を受けていない高血圧患者500人を対象に登録した.
- 内皮機能は,アセチルコリンとナトリウムニトロプロシドによるストレンスゲーププレシスモグラフィを使用して評価されました.
- eGFRは,CKD-EPI方程式を使用して計算され,年間減少 (DeltaeGFR/y) は,平均92.3ヶ月の追跡期間で決定されました.
主要な成果:
- 平均年間eGFRの減少率は1.49 mL·min−1·1.73 m−2.2でした.
- アセチルコリンで刺激された前腕の血流は,DeltaeGFR/y (r=-0.256,P<0.0001) と有意な逆相関を示した.
- 多変量分析により,前腕の血流と静脈血圧が独立してeGFR変化と関連していることが確認されました.
結論:
- アセチルコリン刺激による血管拡張の障害とシストリック血圧の上昇は,エッセンシャル高血圧におけるeGFR喪失の加速と関連しています.
- 内皮機能は高血圧患者の腎機能低下の有意な予測因子である.
- これらの発見は,高血圧性腎臓病の管理における内皮の健康の重要性を強調しています.
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