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Effect of pioglitazone on skeletal muscle lipid deposition in the insulin resistance rat model induced by high fructose diet under AMPK signaling pathway

机译:吡格列酮对AMPK信号通路高果糖饮食诱导的胰岛素抵抗大鼠模型骨骼肌脂质沉积的影响

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摘要

To study the changes of lipid deposition in skeletal muscle of insulin resistance rat and the effect of pioglitazone intervention on the expression of AMPK pathway related genes in rat, a rat model of insulin resistance was induced and constructed by high fructose diet as an test group, and normal rats were used as a control group. First, the effect of pioglitazone intervention on serum lipids-related indicators and mRNA expression levels of fat-related genes in skeletal muscle in rats was investigated. Then skeletal muscle sections were made and stained with oil red O to investigate the effect of pioglitazone intervention on lipid deposition in skeletal muscle of rats. Finally, the effects of pioglitazone intervention therapy on the mRNA and protein expression of related genes in the AMPK signaling pathway in skeletal muscle tissue of rat were explored by real-time quantitative PCR (qRT-PCR) and Western-blotting technology. The results showed that the blood glucose (BG), insulin (INS), adiponectin (ADPN), free fatty acid (FFA), triglyceride (TG), and cholesterol (TC) levels in serum of the test group were higher than the control group (  P P P
机译:为了研究胰岛素抵抗大鼠骨骼肌脂质沉积的变化以及吡格列酮干预对大鼠AMPK途径相关基因表达的影响,以高果糖饮食为模型建立了大鼠胰岛素抵抗模型,正常大鼠为对照组。首先,研究了吡格列酮干预对大鼠骨骼肌血脂相关指标和脂肪相关基因mRNA表达水平的影响。然后制作骨骼肌切片,并用油红O染色,以研究吡格列酮干预对大鼠骨骼肌脂质沉积的影响。最后,通过实时定量PCR(qRT-PCR)和Western-blotting技术探索了吡格列酮干预治疗对大鼠骨骼肌组织AMPK信号通路相关基因的mRNA和蛋白表达的影响。结果显示,试验组血清中的血糖(BG),胰岛素(INS),脂联素(ADPN),游离脂肪酸(FFA),甘油三酸酯(TG)和胆固醇(TC)均高于对照组。组(P

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