氧化苦参碱对高脂诱导胰岛素抵抗ApoE^(-/-)小鼠肝脏成纤维细胞因子-21/β-klotho/FGF-21受体1通路的作用  被引量:4

Effect of oxymatrine on hepatic FGF-21/β-klotho/FGFRl pathway in ApoE^(-/-) mice with fat-induced insulin resistance

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作  者:王超[1] 张会欣 邢邯英[1] 王杏[1] 张哲[1] 

机构地区:[1]河北省人民医院老年医学重点实验室,石家庄050051 [2]河北以岭医药研究院药理室

出  处:《中国糖尿病杂志》2016年第11期1003-1006,共4页Chinese Journal of Diabetes

基  金:国家重点基础研究发展计划(973计划)项目(2012CB518606);河北省重大医学科研项目(zd2013002;zd2013004)

摘  要:目的探讨氧化苦参碱(OXY)对高脂诱导IR ApoE^(-/-)小鼠肝脏成纤维细胞因子-21(FGF-21)/β-klotho/FGF-21受体1(FGFR1)通路的作用。方法 ApoE^(-/-)小鼠分为模型(IR)组、氧化苦参碱25 mg/kg(IR+25OXY)组、氧化苦参碱50 mg/kg(IR+50OXY)组、氧化苦参碱100 mg/kg(IR+100OXY)组,C57BL/6J小鼠作为对照(NC)组。计算HOMA-IR和ISI。QRT-PCR和Western blot检测肝组织FGF-21、β-klotho蛋白(β-klotho)、FGFR1表达。结果与IR组比较,IR+50OXY组和IR+100OXY组HOMA-IR值降低[(31.54±4.30)vs(21.84±1.87)vs(17.27±3.59)],ISI值升高[(0.022±0.000)vs(0.034±0.010)vs(0.042±0.010)](P<0.05);OXY可使FGF-21、β-klotho、FGFR1 mRNA和蛋白表达有不同程度的降低。结论 OXY能通过调节肝脏FGF-21/β-klotho/FGFR1通路,改善高脂诱导小鼠的IR。Objective To investigate the effect of oxymatrine (OXY) on hepatic FGF-21/β-klotho/ FGFR1 pathway in ApoE-/- mice with fat-induced insulin resistance. Methods ApoE-/- mice were divided into model group (IR), oxymatrine 25 mg/kg group (IR + 25OXY), oxymatrine 50 mg/kg group (IR+50OXY), and oxymatrine 100 mg/kg group (IR + 100OXY). C57BL/6J mice were selected as normal control group (NC). Insulin resistance index (HOMA-IR) and insulin sensitivity index (ISI) were calculated. The expression of fibroblast growth factor 21 (FGF-21),β-klotho protein family (β-klotho) and FGF-21 receptor 1 (FGFR1)were examined by QRT-PCR and Western-blot. Results HOMA-IR decreased in IR+50 OXY group and IR+100 OXY group than in IR group [(21.84±1.87) vs (17. 27± 3.59) vs(31.54±4.30)],P〈0.05], ISI increased in IR+50 OXY group and IR+100 OXY group than in IR group [(0. 034±0. 010) vs (0. 042±0. 010) vs (0. 022±0. 000),P〈0. 05]. Oxymatrine reduced the mRNA and protein expression of FGF-21, β-klotho and FGFR1 in different degree. Conclusion Oxymatrine can improve fat-induced insulin resistance in mice by modulating the hepatic FGF-21/β-klotho/ FGFR1 pathway.

关 键 词:氧化苦参碱 高脂 胰岛素抵抗 成纤维细胞生长因子21 fl-klotho家族 

分 类 号:R285.5[医药卫生—中药学]

 

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