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硫化氢对低氧性肺动脉高压大鼠P47phox表达的影响 被引量:2

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摘要 目的观察硫化氢H2S对低氧性肺动脉高压(HPH)大鼠P47phox表达的影响。方法 36只体重(180±20)g健康成年雄性SD大鼠,随机分为常氧组、低氧组、低氧+硫氢化钠(Na HS)组,每组12只。低氧16 d后分别检测其平均肺动脉压(m PAP)、右心室肥厚情况和肺血管形态学指标的变化。采用Western印迹检测肺动脉组织P47phox的表达水平。结果与常氧组比较,低氧组m PAP明显升高,右室/(左室+室间隔)比值显著增加(P<0.01);部分肌型动脉百分比明显升高,非肌型动脉百分比明显降低(P<0.05);肺动脉组织P47phox表达升高(P<0.05)。与低氧组比较,低氧+Na HS组m PAP、右室/(左室+室间隔)比值均明显降低(P<0.01);肺小血管中肌型动脉、部分肌型动脉百分比明显降低,非肌型动脉百分比明显升高(P<0.05);肺动脉组织P47phox表达明显降低(P<0.01)。结论 H2S可能通过抑制大鼠肺动脉组织P47phox表达而调节低氧性肺血管结构重建和HPH的形成。
出处 《中国老年学杂志》 CAS 北大核心 2017年第3期571-573,共3页 Chinese Journal of Gerontology
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