食品科学 ›› 2010, Vol. 31 ›› Issue (21): 365-368.doi: 10.7506/spkx1002-6630-201021083

• 营养卫生 • 上一篇    下一篇

乳源酪蛋白糖巨肽改善小鼠溃疡性结肠炎的研究

贾玉臣,陈庆森*   

  1. 天津市食品生物技术重点实验室,天津商业大学生物技术与食品科学学院

  • 收稿日期:2010-07-19 修回日期:2010-10-20 出版日期:2010-11-15 发布日期:2010-12-29
  • 通讯作者: 陈庆森 E-mail:chqsen@tjcu.edu.cn
  • 基金资助:

    国家自然科学基金项目(30771524)

Improvement of Oxazolone-induced Ulcerative Colitis in Mice by Bovine Casein Glycomacropeptide

JIA Yu-chen, CHEN Qing-sen*   

  1. Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology and Food Science,
    Tianjin University of Commerce, Tianjin 300134, China
  • Received:2010-07-19 Revised:2010-10-20 Online:2010-11-15 Published:2010-12-29
  • Contact: CHEN Qing-sen* E-mail:chqsen@tjcu.edu.cn

摘要:

利用恶唑酮复制小鼠溃疡性结肠炎(UC)以研究乳源酪蛋白糖巨肽(CGMP)对溃疡性结肠炎的影响。空白对照组小鼠仅饲喂普通鼠食,模型对照组与3 个CGMP 组灌注恶唑酮诱导溃疡性结肠炎,诱导建模后对3 个CGMP组小鼠分别灌胃低、中、高剂量的CGMP(剂量分别为5、50、500mg/(kg bw·d)),连续灌胃5d。期间记录小鼠每天体质量变化,末次灌胃后检测小鼠血清中二胺氧化酶(DAO)活性以及结肠中髓过氧化物酶(MPO)活性和丙二醛(MDA)含量,并观察结肠组织形态。结果表明:低、中、高剂量CGMP 均可在一定程度上改善恶唑酮诱导的小鼠溃疡性结肠炎病症,尤其以中剂量CGMP 的作用较为明显,因此证实CGMP 作为一种营养手段调理溃疡性结肠炎具有很好的前景。

关键词: 酪蛋白糖巨肽, CGMP, 恶唑酮, 溃疡性结肠炎

Abstract:

In order to explore the effect of casein glycomacropeptide (CGMP) on xazolone-induced ulcerative colitis in mice, the control group was fed regular diet, while the model group and three treatment groups were administered CGMP at three doses of 5, 50 mg/(kg bw·d) and 500 mg/(kg bw·d) by oral gavage for 5 days after oxazolone challenge. The change of body weight was daily recorded and diamine oxidase (DAO) activity in serum, myeloperoxidase (MPO) activity, malonaldehyde (MDA) content in colon, and histological change of colon were determined after the last administration. Treatments with the three doses of CGMP showed improvement on oxazolone-induced ulcerative colitis, while the dose of 50 mg/(kg bw·d) CGMP seemed to be better. In conclusion, CGMP holds promising potential to be applied in a nutritional therapy for the treatment of ulcerative colitis.

Key words: casein glycomacropeptide, CGMP, oxazolone, ulcerative colitis

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