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血管紧张素Ⅱ对氧化低密度脂蛋白受体LOX1基因表达的调控 被引量:1

REGULATION OF THE TRANSCRIPTION OF OXIDIZED LOW DENSITY LlPOPROTEIN RECEPTOR BY ANGlOTENSIN Ⅱ
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摘要 目的 :观察不同浓度血管紧张素Ⅱ对氧化低密度脂蛋白内皮受体LOX1基因表达的影响 ,并探讨其机制。方法 :采用反转录 聚合酶链反应 (RT +PCR)。结果 :①血管紧张素Ⅱ可上调LOXI的mRNA水平 ,且呈剂量依赖效应 ;②应用血管紧张素Ⅱ一型受体阻断剂Losartan后抑制了血管紧张素Ⅱ对LOX1的上调作用。结论 :血管紧张素Ⅱ可显著上调LOXI的基因表达 ,且呈剂量依赖效应 。 Aim: To observe the effects of different concentrations Angiotensin Ⅱ on the transcription of LOX1 in culture human umbilical vein endothelial cells and to explore its mechanism. Methods: Reverse transcription polymerase chain reaction (RT PCR). Results:①Angiotensin Ⅱ cause a concentration dependent increase of the level of LOX1 mRNA.②Losartan, the inhibitor of AT1 receptor subtypes,inhibited this effects.Conclusion: Angiotensin Ⅱ stimulated the gene expression of LOX1 by activating AT1 receptor subtype in culture human endothelial cells.
出处 《中国应用生理学杂志》 CAS CSCD 北大核心 2001年第3期278-280,共3页 Chinese Journal of Applied Physiology
关键词 受体 血管紧张素Ⅱ 低密度脂蛋白 基因表达 receptor AngiotensinⅡ low density lipoprotein gene expression RNA
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