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沙利度胺对低氧肺动脉高压大鼠VEGF及bFGF水平的影响

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摘要 目的探讨沙利度胺对低氧肺动脉高压大鼠血管内皮生长因子(VEGF)、碱性成纤维细胞生长因子(bFGF)水平的影响。方法采用低氧高二氧化碳肺动脉高压大鼠模型,将清洁级健康雄性24只大鼠随机分为对照组(N组)、模型组(W组)和干预组(T组)。采用HE染色观察大鼠肺病理变化;ELISA法测定大鼠肺组织VEGF和bFGF含量。结果光镜下,N组大鼠平滑肌层未见增生,管壁均匀一致;W组平滑肌细胞增生明显,管壁明显厚薄不均,管腔明显变小;T组管壁增厚减轻,管腔狭窄改善,管腔较W组明显变大。W组mPAP、RV/(LV+S)、VEGF、bFGF均明显高于N组和T组。VEGF、bFGF呈正相关(P<0.01);VEGF、bFGF与mPAP、RV/(LV+S)呈正相关(P<0.01)。结论沙利度胺可降低低氧高二氧化碳肺动脉高压大鼠肺动脉压力,机制可能是降低肺组织VEGF、bFGF的含量。
出处 《中国乡村医药》 2017年第6期41-42,共2页
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