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腺苷A1受体激动剂对心肌细胞缺氧再给氧脂质过氧化损伤的保护作用 被引量:1

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摘要 目的观察腺苷A1受体激动剂对培养的心肌细胞缺氧再给氧脂质过氧化损伤的影响。方法以培养的心肌细胞为模型,在缺氧再给氧损伤细胞后,给予腺苷A1受体激动剂R(-)N6-(2-phenylisopropyl)adenosine(R-PIA)(0.1及1μmol/L),测定培养液上清液中超氧化物歧化酶(SOD)的活性和乳酸脱氢酶(LDH)、丙二醛(MDA)的含量及细胞MTT代谢率的变化。结果腺苷A1受体激动剂可以使培养液上清液中LDH和MDA的含量明显降低,SOD的活性增强,细胞MTT代谢率明显升高,且呈现剂量依赖性。而且这种作用可被腺苷A1受体拮抗剂8-cyclopentyl-1,3-dipropylxanthine(CPDPX)所拮抗。结论腺苷A1受体激动剂对缺氧再给氧损伤培养的心肌细胞有保护作用。
出处 《中西医结合心脑血管病杂志》 2007年第11期1082-1084,共3页 Chinese Journal of Integrative Medicine on Cardio-Cerebrovascular Disease
基金 辽宁省教委基金资助项目(No20040132)
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