食品科学

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冰岛刺参岩藻糖基化硫酸软骨素对高脂饮食诱导的糖尿病小鼠肾脏的保护作用

周晓春,王静凤,胡世伟,石 迪,薛长湖   

  1. 中国海洋大学食品科学与工程学院,山东 青岛 266003
  • 出版日期:2014-07-15 发布日期:2014-07-18

Protective Effect of Fucolysated Chondroitin Sulfate from the Sea Cucumber Cucumaria frondosa on Kidney of High Fat Diet-Induced Diabetic Mice

ZHOU Xiao-chun, WANG Jing-feng, HU Shi-wei, SHI Di, XUE Chang-hu   

  1. College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
  • Online:2014-07-15 Published:2014-07-18

摘要:

目的:研究冰岛刺参岩藻糖基化硫酸软骨素(fucolysated chondroitin sulfate from Cucumaria frondosa,Cf-CHS)对高脂饮食诱导的糖尿病小鼠肾脏的保护作用。方法:以高脂高糖饲料饲喂诱导Ⅱ型糖尿病小鼠模型,饲喂含不同剂量Cf-CHS的高脂高糖饲料连续19 周,检测空腹血糖并收集尿液,分别检测小鼠尿液中尿糖、微量白蛋白(microalbumin,mAlb)、尿总蛋白、尿素氮(urea nitrogen,UN)、尿酸(uric acid,UA)、肌酐(creatinine,Cr)浓度和β-N-乙酰葡萄糖苷酶(N-acetyl-β-glucosaminidase,NAG)排泄率,摘取肾脏观察肾脏组织的显微结构。结果:Cf-CHS可显著降低糖尿病小鼠的尿糖、mAlb、尿总蛋白、UN、UA、Cr浓度和NAG排泄率(P<0.01),改善肾脏组织的显微结构。结论:Cf-CHS可显著改善糖尿病小鼠的肾脏功能。

关键词: 糖尿病肾病, 冰岛刺参, 岩藻糖基化硫酸软骨素, 尿蛋白, &beta, -N-乙酰葡萄糖苷酶, 肾脏保护

Abstract:

Objective: In this study, the protective effect of fucolysated chondroitin sulfate from the sea cucumber Cucumaria
frondosa (Cf-CHS) on kidney was accessed in high fat diet-(HFD) induced diabetic mice. Methods: To establish diabetic
models, mice were fed with HFD. The diabetic mice were administered with different doses of Cf-CHS daily for 19 weeks.
Urine was collected to analyze the levels of glucose, microalbumin (mAlb), total protein, urea nitrogen (UN), uric acid (UA),
creatinine (Cr) and the excretion of N-acetyl-β-glucosaminidase (NAG). Kidney tissue was collected to make microscope
slides. Results: Cf-CHS could significantly (P < 0.01) decrease the levels of glucose, mAlb, total UN, UA, Cr, and NAG
in urine and observably improve kidney tissue of diabetic mice. Conclusion: Cf-CHS has a remarkably protective effect on
kidney of diabetic mice.

Key words: diabetes mellitus, Cucumaria frondosa, fucolysated chondroitin sulfate(CHS), urine protein, N-acetyl-β-glucosaminidase(NAG), kidney protection