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中国应用生理学杂志 ›› 2016, Vol. 32 ›› Issue (3): 198-201.doi: 10.13459/j.cnki.cjap.2016.03.002

• 研究论文 • 上一篇    下一篇

AdipoRon对2型糖尿病小鼠的治疗及其可能的肝脏机制

肖敏, 屈小虎, 李长西, 吕聚坪, 史杨, 谢克俭   

  1. 温州医科大学检验医学与生命科学学院, 浙江温州 325035
  • 收稿日期:2015-11-24 修回日期:2016-02-14 出版日期:2016-05-28 发布日期:2018-06-12
  • 通讯作者: 谢克俭,Tel:13705883181;E-mail:xkj@wmu.edu.cn E-mail:xkj@wmu.edu.cn
  • 基金资助:
    2015年度浙江省公益技术应用研究计划(实验动物)项目(2015C37099)

AdipoRon for the treatment of type 2 diabetes in mice and its possible mechanism of the liver

XIAO Min, QU Xiao-hu, LI Chang-xi, LV Ju-ping, SHI Yang, XIE Ke-jian   

  1. Department of Biology, School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou 325035, China
  • Received:2015-11-24 Revised:2016-02-14 Online:2016-05-28 Published:2018-06-12
  • Supported by:
    2015年度浙江省公益技术应用研究计划(实验动物)项目(2015C37099)

摘要: 目的:观察口服脂联素受体激动剂(AdipoRon)对2型糖尿病小鼠的治疗效果及对肝脏的影响。方法:40只SPF级雄性C57/BL6小鼠随机分为正常对照组和实验组,实验组给予高糖高脂饲养联合腹腔注射小剂量链脲佐菌素建立二型糖尿病(T2DM)小鼠模型,随机分为模型对照(DM)组,低剂量AdipoRon治疗(DM+L)组,高剂量AdipoRon治疗(DM+H)组(n=10)。检测血清中丙氨酸转氨酶(ALT)、天门冬氨酸转氨酶(AST)、碱性磷酸酶(ALP)的变化;HE染色镜下观察肝细胞形态学变化;实时定量荧光PCR法检测肝脏中肝糖类相关基因(PEPCK)的表达。结果:与DM组小鼠比较,DM+H组和DM+L组小鼠ALT、AST、ALP、甘油三酯(TG)、葡萄糖(GLU)水平均降低(P<0.05);与DM组小鼠比较,DM+H组小鼠和DM+L组小鼠血清游离脂肪酸(FFA)浓度显著下降(P<0.05),而肝组织葡萄糖-6-磷酸酶(G-6-P)活性DM+L组小鼠显著下降,DM+H组小鼠无显著差异;与DM组小鼠比较,DM+H组小鼠肝组织磷酸烯醇式丙酮酸羧激酶(PEPCK) mRNA表达显著降低(P<0.05),而DM+L组小鼠无显著差异。结论:给予AdipoRon治疗的小鼠血糖降低,ALT、AST、ALP的水平及G-6-P和PEPCK的表达下降,表明AdipoRon对2型糖尿病具有显著的治疗效果,对糖尿病小鼠肝脏有一定的保护作用。

关键词: 2型糖尿病, 脂联素受体激动剂, 肝细胞损伤, 小鼠

Abstract: Objective:To observe the effect of AdipoRon for the treatment of type 2 diabetes (T2DM)in mice and its effect on the liver. Methods:Forty male C57/BL6 mice (SPF) were randomly divided to normal control (NC) group and the experimental group. To establish the T2DM mice model, mice in the experimental group were fed with high fat and high glucose, combined with intraperitoneal injection of streptozotocin (STZ) in small doses, and mice were further subdivided into model control (DM) group, model control with low AdipoRon (DM+L) group and model control with high AdipoRon (DM+H) group (n=10). Serum indexes, such as levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP) were detected biochemically and the morphological changes of liver cells were observed with HE staining and expression of liver carbohydrate related gene (PEPCK) were determined by real-time fluorescence quantitative PCR (real time FQ-PCR). Results:Compared with mice in the DM group, levels of ALT, AST, ALP, triglyceride (TG), glucose (GLU) reduced in DM+L and DM+H group (P<0.05). Concentrations of serum free fatty acids (FFA) in DM+L and DM+H group reduced significantly (P<0.05). Besides, concentrations of liver glucose-6-phosphatase (G-6-P) in the mice of DM+L group reduced significantly, while there was no significant difference in the content of G-6-P between the mice of DM+H group and the mice of DM group. Furthermore, the expression of the liver phosphoenolpyruvate carboxylase (PEPCK) in the DM+H group reduced significantly (P<0.05). Compared with the DM group no significant change was found in the PEPCK expression between DM+L and DM group. Conclusion:The serum indexes such as levels of ALT, AST, ALP, TG, Glu, G-6-P and PEPCK were all reduced in DM mice treated with AdipoRon, indicating the obvious protecting effect of AdipoRon on the liver in DM mice.

Key words: type 2 diabetes, adiponectin receptor excitomotor, liver cell injury, mice

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