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内皮素-1对培养鼠肝星状细胞内游离钙的影响 被引量:3

内皮素-1对培养鼠肝星状细胞内游离钙的影响
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摘要 目的 :观察内皮素 - 1(ET - 1)对培养肝星状细胞 (HSC)的胞内钙 ([Ca2 + ]i)的影响。方法 :分离培养大鼠HSC ,采用Fura - 2 /AM钙荧光指示剂测定HSC细胞内Ca2 + 浓度 ,并观察ET - 1对其影响。结果 :ET - 1在很短时间内即可明显提高HSC细胞内Ca2 + 浓度 (P <0 0 1)。并且在无细胞外液Ca2 + 情况下 ,亦可提高 [Ca2 + ]i,有明显的量效关系 (P <0 0 5 ,P <0 0 1)。同时 ,维拉帕米对ET - 1的上述作用具有显著的抑制作用 (P <0 0 5 )。结论 :ET - 1的促肝纤维化作用可能是通过 [Ca2 +
出处 《中国病理生理杂志》 CAS CSCD 北大核心 2004年第11期2118-2119,2146,共3页 Chinese Journal of Pathophysiology
基金 铁道部科技发展基金资助项目 (No .J99Z0 38)
关键词 内皮缩血管肽1 肝细胞 Endothelin-1 Hepatocytes Calcium
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