食品科学 ›› 2018, Vol. 39 ›› Issue (13): 190-197.doi: 10.7506/spkx1002-6630-201813028

• 营养卫生 • 上一篇    下一篇

植物乳杆菌C88对高脂饲料和链脲佐菌素诱导2型糖尿病模型大鼠的降血糖作用

罗 宏1,段翠翠2,栾 畅2,高 磊2,赵玉娟2,牛春华2,李盛钰2,*   

  1. 1.长春大学特殊教育学院,吉林 长春 130022;2.吉林省农业科学院农产品加工研究所,吉林 长春 130033
  • 出版日期:2018-07-15 发布日期:2018-07-09
  • 基金资助:
    现代农业产业技术体系建设专项(CARS-36);长春市产学研协同创新示范点建设专项(16CX20);吉林省农业科技创新工程重大攻关项目(CXGC2017ZD011)

Antidiabetic Effect of Lactobacillus plantarum C88 in a Rat Model of High-Fat Diet and Streptozotocin-Induced Type 2 Diabetes

LUO Hong1, DUAN Cuicui2, LUAN Chang2, GAO Lei2, ZHAO Yujuan2, NIU Chunhua2, LI Shengyu2,*   

  1. 1. Special Education College, Changchun University, Changchun 130022, China; 2. Institute of Agro-Food Technology, Jilin Academy of Agricultural Sciences, Changchun 130033, China
  • Online:2018-07-15 Published:2018-07-09

摘要: 目的:探究植物乳杆菌(Lactobacillus plantarum)C88对2型糖尿病大鼠模型降血糖作用。方法:采用高 脂饲料结合腹腔注射链脲佐菌素的方法建立2型糖尿病大鼠模型,连续灌胃植物乳杆菌C88,28 d后检测大鼠空腹血 糖量、葡萄糖耐受量、血脂、胰岛素、炎症因子、肠道屏障功能和菌群水平。Western blot分析核因子-κB(nuclear factor-κB,NF-κB)、肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)、闭锁小带蛋白-1(zonula occludens-1, ZO-1)、occludin、claudin-1的表达。结果:植物乳杆菌C88可有效改善2型糖尿病大鼠高血糖和血脂代谢紊乱;显 著降低2型糖尿病大鼠血清中TNF-α、白细胞介素-6、C反应蛋白、脂多糖、D-乳酸等炎症相关因子水平;植物乳杆 菌C88能促进胰岛素的分泌,提高胰高血糖素样肽-2水平,降低2型糖尿病大鼠血清中二胺氧化酶和连蛋白水平;显 著降低肝脏中炎症相关蛋白NF-κB、TNF-α的表达,提高回肠中肠道通透性相关蛋白ZO-1、occludin、claudin-1的表 达。结论:植物乳杆菌C88是一株具有辅助降血糖功能的益生菌。

关键词: 植物乳杆菌, 糖尿病, 降血糖, 肠道菌群, 炎症

Abstract: Objective: To investigate the antidiabetic effect of Lactobacillus plantarum C88 in a type 2 diabetic rat model. Methods: Type 2 diabetes was induced in rats by feeding high-fat diet followed by single intraperitoneal injection of streptozotocin. The diabetic rats were intragastrically administrated with L. plantarum C88 for 28 consecutive days, and then the fasting blood-glucose, glucose tolerance, blood lipids, insulin, inflammatory factors, intestinal barrier function and intestinal flora were measured. Western blot was used to analyze the expression of nuclear factor-κB (NF-κB), tumor necrosis factor-α (TNF-α), zonula occludens-1 (ZO-1), occludin and claudin-1. Results: L. plantarum C88 could effectively improve hyperglycemia and lipid metabolism disorder in type 2 diabetic rats and significantly decrease the levels of TNF-α, interleukine-6, C-reactive protein, lipopolysaccharide, D-lactic acid and other inflammatory factors in the serum. L. plantarum C88 could promote the secretion of insulin, increase glucagon-like peptide-2 level and decrease diamine oxidase and zonulin. In addition, this strain significantly down-regulated the expression of inflammation-associated protein (NF-κB and TNF-α) in the liver and up-regulated the expression of ZO-1, occludin and claudin-1, associated with intestinal permeability in the ileum. Conclusion: L. plantarum C88 is a probiotic with hypoglycemic activity.

Key words: Lactobacillus plantarum, diabetes, hypoglycemic, intestinal flora, inflammation

中图分类号: