食品科学 ›› 2020, Vol. 41 ›› Issue (9): 74-80.doi: 10.7506/spkx1002-6630-20190322-293

• 营养卫生 • 上一篇    下一篇

新疆双峰驼乳对链脲佐菌素诱导的糖尿病小鼠肝脏的保护作用

刘宸,冯鑫欢,豆智华,安淑静,刘梦娇,侯志梅,杨洁   

  1. (1.新疆大学生命科学与技术学院,新疆 乌鲁木齐 830046;2.新疆医科大学第二附属医院老年病科,新疆 乌鲁木齐 830063)
  • 出版日期:2020-05-15 发布日期:2020-05-15
  • 基金资助:
    国家自然科学基金地区科学基金项目(8186080200)

Protective Effect of Xinjiang Bactrian Camel Milk on the Liver of Streptozotocin-Induced Diabetic Mice

LIU Chen, FENG Xinhuan, DOU Zhihua, AN Shujing, LIU Mengjiao, HOU Zhimei, YANG Jie   

  1. (1. College of Life Science and Technology, Xinjiang University, ürümqi 830046, China; 2. Department of Geriatrics, The Second Affiliated Hospital of Xinjiang Medical University, ürümqi 830063, China)
  • Online:2020-05-15 Published:2020-05-15

摘要: 本实验以链脲佐菌素(streptozotocin,STZ)诱导的1型糖尿病小鼠为模型,探讨了全驼乳、驼脱脂乳、驼酪蛋白、驼乳清和驼乳清蛋白对糖尿病小鼠的影响,研究驼乳不同组分对1型糖尿病小鼠糖脂代谢、抗氧化能力、肝细胞形态以及过氧化物酶体增殖物激活受体γ(peroxisome proliferator-activated receptor γ,PPAR-γ)、固醇调节元件结合蛋白1c(sterol regulatory element binding protein 1c,SREBP1c)mRNA表达的影响。结果表明,除驼酪蛋白以外的其余组分均能增加糖尿病小鼠体质量、降低血糖浓度、升高血清胰岛素水平、恢复血脂水平、提高肝脏抗氧化能力,并减少肝组织的损伤。其中各项指标中,驼乳清组与模型组的变化最大,且差异极显著(P<0.01)。经驼乳清组干预后的糖尿病小鼠肝PPAR-γ mRNA表达增加,SREBP1c mRNA表达下降。总地来说,驼乳清可有效改善STZ诱导的糖尿病小鼠糖脂代谢及肝组织损伤,其作用可能与上调PPAR-γ、下调SREBP1c mRNA表达有关。

关键词: 驼乳, 1型糖尿病, 肝损伤, 过氧化物酶体增殖物激活受体γ, 固醇调节元件结合蛋白1c

Abstract: In this research, the effect of whole milk, skim milk, milk casein, whey and whey proteins from bactrian camels in Xinjiang on glycolipid metabolism, antioxidant status, hepatocyte morphology, and the mRNA expression of peroxisome proliferator-activated receptor gamma (PPAR-γ) and sterol regulatory element binding protein 1c (SREBP1c) in streptozotocin (STZ)-induced type 1 diabetic mice was investigated. The results showed that all samples except camel milk casein could increase the body mass of diabetic mice, reduce blood sugar, increase serum insulin level, restore blood lipid levels to normal, improve liver antioxidant capacity, and reduce liver tissue damage. In terms of these indicators, the whey treatment group differed more significantly from the model group than did other treatment groups (P < 0.01). Camel whey could increase the expression of PPAR-γ and reduce the expression of SREBP1c in the liver of diabetic mice. In summary, camel whey could effectively improve glycolipid metabolism and relief liver tissue damage in STZ-induced diabetic mice and its effect might be related to the up-regulation of PPAR-γ and the down-regulation of SREBP1c.

Key words: camel milk, type 1 diabetic, liver injury, peroxisome proliferator-activated receptor γ, sterol regulatory element binding protein 1c

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