吉林大学学报(医学版) ›› 2022, Vol. 48 ›› Issue (4): 892-897.doi: 10.13481/j.1671-587X.20220407

• 基础研究 • 上一篇    下一篇

染料木素铬配合物对谷氨酸钠诱导的肥胖大鼠糖脂代谢的影响

王维纲1,李晓红2,刘冰1,丁涛2,韦康2,田建明2()   

  1. 1.吉林医药学院附属医院中医科,吉林 吉林 132013
    2.吉林省中医药科学院药效毒理评价中心,吉林 长春 130012
  • 收稿日期:2021-11-04 出版日期:2022-07-28 发布日期:2022-07-26
  • 通讯作者: 田建明 E-mail:1335822453@qq.com
  • 作者简介:王维纲(1964-),男,吉林省吉林市人,副主任医师,医学硕士,主要从事糖尿病并发症临床方面的研究。
  • 基金资助:
    国家科技部科技重大专项项目(2018ZX09711001-009-005);吉林省科技厅重点科技攻关项目(2016020411YY)

Effect of genistein chromium complex on glucose and lipid metabolism in obese rats induced by sodium glutamate

Weigang WANG1,Xiaohong LI2,Bing LIU1,Tao DING2,Kang WEI2,Jianming TIAN2()   

  1. 1.Department of Traditional Chinese Medicine,Affiliated Hospital,Jilin Medical College,Jilin 132013,China
    2.Pharmacodynamic and Toxicological Evaluation Center,Jilin College of Traditional Chinese Medicine,Changchun 130012,China
  • Received:2021-11-04 Online:2022-07-28 Published:2022-07-26
  • Contact: Jianming TIAN E-mail:1335822453@qq.com

摘要: 目的

通过研究染料木素铬配合物(染料木素铬)对L-谷氨酸钠(MSG)诱导的肥胖大鼠糖代谢和脂代谢的影响,为开发治疗肥胖型2型糖尿病的新药提供依据。

方法

采用MSG制备肥胖大鼠模型,将成模后的雌性大鼠(体质量超过对照组大鼠平均体质量的 20%)50只随机为模型组、二甲双胍(95 mg·kg-1)组、低剂量(15 mg·kg-1)染料木素铬组、中剂量(30 mg·kg-1)染料木素铬组和高剂量(60 mg·kg-1)染料木素铬组,另取10只正常大鼠设为对照组,按上述剂量灌胃给予受试药物,每日1次,连续4周。给药结束后取静脉血,采用氧化酶法检测大鼠血清中血糖(Glu)、甘油三脂(TG)和总胆固醇(TC)水平,酶联免疫吸附测定(ELISA)法检测大鼠血清中糖化血红蛋白(GHb)、胰岛素(INS)、一氧化氮合酶(NOS)、血管紧张素Ⅱ(AngⅡ)、内皮因子1(ET-1)、前列环素2(PGI2)、肿瘤坏死因子α(TNF-α)和白细胞介素6 (IL-6)水平。

结果

与对照组比较,给药前后其余各组大鼠体质量明显增加(P<0.05),证明造模成功;与模型组比较,给药4周后,二甲双胍组和中及高剂量染料木素铬组大鼠体质量明显降低(P<0.05);二甲双胍组和各剂量染料木素铬组大鼠血清中Glu、GHb和INS水平明显降低(P<0.05),二甲双胍组和中及高剂量染料木素铬组大鼠胰岛素敏感指数(ISI)明显升高(P<0.05),中和高剂量染料木素铬组大鼠血清中的TG、TC、NOS、AngⅡ、ET-1、TNF-α和IL-6水平明显降低(P<0.05),PGI2水平明显升高(P<0.05),二甲双胍组大鼠血清中的TC、AngⅡ、TNF-α和IL-6水平明显降低(P<0.05)。

结论

染料木素铬对MSG肥胖大鼠糖代谢和脂代谢均有明显的改善作用,该作用与提高胰岛素的敏感性、改善内皮因子和抑制炎症因子功能有关。

关键词: 染料木素铬配合物, L-谷氨酸钠, 糖尿病,2型, 糖脂代谢指标, 细胞因子

Abstract: Objective

To study the effects of genistein chromium complex genistein chromium on the glucose metabolism and lipid metabolism in the obese rats induced bymonosodium L- glutamate (MSG), and to provide the evidence for developing new drugs for obese type 2 diabetes.

Methods

MSG was used to estblish the obese rat models. Fifty female modeling rats (whose body mass exceeded 20% of the average body mass of the rats in control group) were randomly divided into model group, metformin group (95 mg·kg-1), low dose (15 mg·kg-1), medium dose (30 mg·kg-1) and high dose (60 mg·kg-1) of genistein chromium groups, another 10 normal rats were used as control group; the test drug was administered by gavage once a day for 4 weeks. After administration, the vein blood was obtained,and the levels of fasting blood glucose (Glu),triglyceride (TG) and total cholesterol (TC) in serum of the rats were measured by oxidase method;the levels of serum glycosylated hemoglobin (GHb) and insulin (INS), nitric oxide synthase (NOS), angiotensin Ⅱ (AngⅡ), endothelin-1(ET-1), prostacyclin(PGI2), tumor necrosis factor-α (TNF-α),interleukin-6 (IL-6) were measured by enzyme-linked immunosorbent assay.

Results

Compared with control group, the body masses of rats in the other groups were increased significantly (P<0.05) before and after administration, which proved that metformin group and the models were constructed. After 4 weeks, compared with model group, the body masses of the rats in metformin group and medium and high doses of genistein chromium groups were decreased significantly (P<0.05);the levels of Glu, GHB and INS in serum of the rats in metformin group and different doses of genistein chromium groups were decreased significantly (P<0.05); the insulin sensitivity index (ISI) of the rats in metformin group and medium and high doses of genistein chromium groups were increased significantly (P<0.05); the levels of TG, TC, NOS, AngⅡ, ET-1,TNF-α,IL-6 in serum of the rats in medium and high doses of genistein chromium groups were decreased significantly (P<0.05),and the serum PGI2 levels were increased(P<0.05); the levels of TC, AngⅡ,TNF-α,IL-6 in serum of the rats in metformin group were decreased significantly (P<0.05).

Conclusion

Genistein chromium can significantly improve glucose metabolism and lipid metabolism in the MSG-induced obese rats. This effect is related to increasing the insulin sensitivity, improving the endothelial factor and inhibiting the inflammatory factor function.

Key words: Genistein chromium complex, Monosodium L-glutamate, Diabetes mellitus, type 2, Glucose and lipid metabolism index, Cytokine

中图分类号: 

  • R965.1