文莉(湖北中医学院药理教研室 武汉 430061) 陈家春(华中科技大学同济医学院药学院)
摘 要 目的:对紫红獐牙菜4个提取部位的降血糖作用进行筛选,并探查其降血糖活性的作用机制是否影响胰岛素的分泌、体重。方法:采用渗漉法提取紫红獐牙菜的乙醇提取物,并将提取物依次萃取分离出乙醚部位、乙酸乙酯部位、正丁醇部位及水溶性4个部位。通过将此4个部位对由STZ诱导的2型糖尿病小鼠进行抗高血糖作用的药理活性研究,根据实验结果对此4个部位进行有效部位筛选,设定高低剂量组从而考察其量效关系。同时观察其对STZ诱导的2型糖尿病小鼠给药物7 d后对小鼠胰岛素抵抗的影响。结果:乙酸乙酯部位及水溶性部位对STZ引起的高血糖小鼠的血糖有较强的抑制作用,而正丁醇及乙醚部位则相对较差。并且各部位对小鼠胰岛素抵抗有十分显著改善。结论:乙酸乙酯及水溶性部位降血糖作用较明显。
关键词 紫红獐牙菜;胰岛素抵抗;高血糖;STZ小鼠 中图分类号:R285.5 文献标识码:A 文章编号:1008-049X(2007)02-0140-03
Hypoglycemic Activity of S.punicea Hemal Extracts in Streptozotocin Induced Hyperglycemic Mice
Wen Li(Department of pharmacology,Hubei College of Tranditional Chinese Medicine, Wuhan 430061,China);Chen Jiachun(Huazhong University of Science and Technology)ABSTRACT Objective:4 extract fractions of S.punicea Hemal with hypoglycemic activity were Screened and the hypoglycemic activity mechanism was explored in the mice。Method:The percolate method was used to extract the S.punicea Hemal ethamolic extracts。And the extracts werre separated into ether soluble、the ethyl acetate、the n-butanol and watersoluble fractions。The mices with STZ induced Ⅱdiabetes were treatmented by the four fractions with high and low doses。The insulin resistance was observed after givn the drug for 7 days。Result:The water soluble and its ether soluble separation had the hypoglycemic activity, and the ethyl acetate fractions and the n-butanol fractions were relatively loweractive。The four fractions all had very significant effects to reduce the insulin resistance。Conclusion:The ethyl acetate fractions and n-butanol fractions have potent hypoglycemic activity。
KEY WORDS S.punicea Hemal;Insulin resistance; the hypoglycemic activity;STZ mice
作者简介:文莉,女,讲师,本科,主要从事中药药理学研究。 E-mail:wenlihu123123@163.com
参 考 文 献
1何廷农.中国植物志[M].北京:科学出版社,1988.329
2张均田,包图娅,曹恩华.现代药理实验方法[M].北京:北京医科大学中国协和医科大学联合出版社,1998.984-985
3 陈家春,蔡大勇.獐牙菜属药用植物的研究及应用概况[J].中西医结合肝病杂志,1999,第8卷增刊(上):223-226
4 谭沛,刘永隆,侯翠英.紫红獐牙菜中紫药甙的结构[J].药学学报,1992,27(6):476
5谭沛,刘永隆,侯翠英.紫红獐牙菜中紫药甙的结构[J].药学学报,1993,28(7):522
6徐叔云,卞濂,陈修.药理实验方法学[M].北京:人民卫生出版社,1982.1275-1277
7 Basnet P,Kadota S,Namba T,et al. The hypoglycaemic activity of swertia japonica extract in streptozotocin induced hyperglycaemic rats[J]. Phytotherapy Research,1994,8:55-57
8 牟新利,赵芸,阿吉艾克拜尔 艾萨,等. 降糖孜亚比提片降血糖作用的实验研究[J].时珍国医国药,2005.16(9):843-844
9 杨海燕,王秋娟,朱丹妮,等.中药鬼箭羽对脂肪细胞葡萄糖摄取作用的影响[J].中国天然药物,2004,2(6):365-367
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