食品科学 ›› 2020, Vol. 41 ›› Issue (19): 179-184.doi: 10.7506/spkx1002-6630-20190624-283

• 营养卫生 • 上一篇    下一篇

茶籽皂苷对链脲佐菌素诱导的糖尿病大鼠血糖的影响

刘芷君,林玲,雷郑延,曾文治,程福建,林全女,杨江帆   

  1. (福建农林大学园艺学院,茶学福建省高校重点实验室,福建?福州 350002)
  • 出版日期:2020-10-15 发布日期:2020-10-23
  • 基金资助:
    福建省“2011协同创新中心”中国乌龙茶产业协同创新中心专项(闽教科〔2015〕75号)

Effect of Theasaponin on Blood Glucose in Streptozocin-Induced Diabetic Rats

LIU Zhijun, LIN Ling, LEI Zhengyan, ZENG Wenzhi, CHENG Fujian, LIN Quannü, YANG Jiangfan   

  1. (Key Laboratory of Tea Science at University in Fujian, College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China)
  • Online:2020-10-15 Published:2020-10-23

摘要: 目的:探究茶籽皂苷对链脲佐菌素(streptozocin,STZ)诱导的2型糖尿病模型大鼠降血糖作用。方法:采用高脂饲料结合腹腔注射STZ的方法建立2型糖尿病模型大鼠型,连续灌胃茶籽皂苷40 d后检测大鼠空腹血糖量、葡萄糖耐受量、血脂、肝功能等指标,观察组织形态。结果:茶籽皂苷可有效调节2型糖尿病大鼠高血糖和血脂代谢紊乱的症状,极显著改善2型糖尿病大鼠血清中TC、TG、HDL-C、LDL-C浓度等相关因子水平(P<0.01),降低血清中AST、ALT活力(P<0.01),修复糖尿病大鼠胰岛、肝脏组织细胞形态。结论:一定剂量的茶籽皂苷(50~150 mg/(kg mb·d))对STZ诱导的2型糖尿病模型大鼠型具有降血糖作用。

关键词: 茶树;茶籽皂苷;2型糖尿病;降血糖作用

Abstract: Objective: To investigate the hypoglycemic effect of theasaponin on a type 2 diabetic rat model. Methods: The rat model was established by feeding of a high-fat diet combined with intraperitoneal injection of streptozotocin (STZ). Fasting blood glucose, glucose tolerance, and blood lipids were measured after 40 days of continuous administration of theasaponin. Liver function and other related indicators were observed. Results: Theasaponin could effectively regulate hyperglycemia and dyslipidemia in type 2 diabetic rats, and significantly improve serum total cholestrol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) levels (P < 0.01). Furthermore, it could significantly decrease the activity of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in serum (P < 0.01) and repair the morphology of islet and liver tissue in diabetic rats. Conclusion: Theasaponin at a certain dose (50–150 mg/(kg mb·d)) has obvious hypoglycemic effects on the STZ-induced type 2 diabetic rat model.

Key words: tea tree; theasaponin; type 2 diabetes mellitus; hypoglycemic effect

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