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红景天苷对高糖条件下培养的胰岛β细胞功能的影响 被引量:3

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摘要 目的研究红景天苷对高糖条件下培养的胰岛β细胞功能的影响。方法用30m M葡萄糖培养INS-1胰岛细胞,加入不同浓度的红景天苷(0.1μΜ、1.0μΜ和10μΜ)进行干预,并用5.6 m M浓度的葡萄糖作为阴性对照。通过MTT检测INS-1细胞活性、Real time PCR检测胰岛素、TRX、TXNIP mRNA表达变化;用酶联免疫法检测培养上清胰岛素分泌量;使用活性氧检测试剂盒检测细胞内自由氧生成水平。结果体外诱导条件下,高浓度葡萄糖通过上调TXNIP mRNA以及下调TRX mRNA表达,使INS-1细胞内ROS升高,降低胰岛素的分泌;而红景天苷通过下调TXNIP mRNA、上调TRX mRNA水平,维持细胞内ROS的低水平,提高胰岛素的分泌。结论红景天苷对胰岛β细胞的糖毒性损坏具有保护作用。
出处 《现代中医药》 CAS 2015年第6期103-107,共5页 Modern Chinese Medicine
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参考文献27

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