泽泻不同提取物对高脂血症小鼠血脂及脂质过氧化的影响(1)
【摘要】 目的 观察泽泻多糖、泽泻水提物及醇提物对治疗小鼠高脂血症及抗氧化的作用。方法 采用高脂饲料建立实验小鼠高脂血症模型,实验设正常对照组、模型对照组、泽泻多糖组、泽泻水提物和泽泻醇提物组,用胶股蓝片作阳性对照。饲喂高脂饲料两周后,用泽泻提取物灌胃给药21 d,检测小鼠血清总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白-胆固醇(HDL-C)、小鼠肝脏超氧化物歧化酶(SOD)活力及丙二醛(MDA)含量等指标,并通过计算脾脏、胸腺免疫器官指数值观察小鼠的免疫能力。结果 泽泻多糖、泽泻水提物及泽泻醇提物均能显著降低高脂血症模型小鼠血清中TC、TG,升高HDL-C,改善小鼠的动脉硬化指数值(AI),而且均能显著提高肝组织SOD活力,降低肝组织MDA含量,还能明显升高高脂血症肥胖小鼠的脾脏、胸腺指数值。结论 泽泻三种提取物不仅对肥胖小鼠的血脂紊乱具有良好的调节作用,而且能提高肥胖小鼠的抗氧化能力,并能增强肥胖小鼠的免疫能力。
【关键词】 泽泻;多糖;脂代谢;SOD;MDA
The effects of alisma orientalis’s extracts on blood lipid and antioxidation of experimental hyperlipidemia mice
LI shu-zi, JIN zai-jiu, ZHANG shan-yu.
Department of Ophthalmology, Eye and Otorhinolaryngology Hospital, Yanbian 133000, China
【Abstract】 Objective To study the effect of water and alcohol extracts of Talisman orientalis andpolysaccharide on blood lipid and antioxidation of experimental hyperlipidemia mice.Methods All the mice were fed with foods abundant in high-fat to establish model of hyperlipidemia. They were divided randomly by weight into the model, control, polysaccharide, extracts of Talisman orientalis groups, and the Jiaogulan troche group as positive control. The mice were fed with foods abundant in high-fat for 2 weeks, then administrated orally with extracts of Talisman orientalis for 21 days. The total cholesterol (TC), triglyceride(TG) and high-density lipoprotein (HDL-C)in fat mice’s blood serum and liver's SOD and liver's MDA were determined. The immune function was observed through calculated the mice's spleen and thymus index.Results The water and alchohl extracts of Talisman orientalis and polysaccharide can decrease the TC, TG, increase the HDL-C and improve the arteriosclerosis Index (AI), increase the SOD vitality and decrease the MDA content of liver significantly, increase the fat mice's spleen and thymus index observably.Conclusion The extracts of Talisman orientalis can not only accommodate disorders of metabolizing blood lipid, but also enhance anti-oxidation capacity and immune function of hyperlipidemia mice.
【Key words】 Alisman orientalis;Polysaccharide;Fat metabolize;SOD;MDA
泽泻为泽泻科植物泽泻Alisma orientalis(Sam.)Juzep.的干燥块茎。其性寒,味甘、淡,归肾、膀胱经。具有利水渗湿、泄热之功效。用于小便不利、水肿胀满、泄泻、尿少、痰饮、眩晕、热淋涩痛等症。近年来研究表明,泽泻除具有明显的利尿作用外,还具有降血压、降血糖、抗脂肪肝、降血脂及抗动脉粥样硬化等作用[1]。对泽泻的化学成分和实验药理学的研究也多集中在利尿和降血脂方面。研究资料显示泽泻降血脂成分主要是泽泻醇A、泽泻醇B、乙酸泽泻醇醋酸酯等脂溶性成分,其降脂作用的机理可能是抑制胆固醇的吸收及影响胆固醇在小肠的酯化[2,3]。近年来研究表明植物多糖具有重要的生理活性,这些多糖参与了生物体中细胞的各种活动,具有免疫调节、抗肿瘤、降血糖、降血脂、抗氧化、抗衰老、抗病毒等生物活性[4]。为此本实验将泽泻多糖、泽泻水提物及泽泻醇提物分别灌胃高脂血症小鼠,旨在比较三种提取物对小鼠脂代谢作用影响的差
别,并进行了相关指标的测定,为泽泻的开发和应用提供理论依据。
1 实验材料与仪器
1.1 药品泽泻饮片(产自广西,符合2005年药典标准);胶股蓝片(广州白云山制药股份有限公司,批号:07021011)。
1.2试剂与仪器胆固醇、牛胆酸钠,北京奥博星生物技术责任有限公司;总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白(HDL-C)测定试剂盒,上海荣盛生物科技有限公司; 超氧化物歧化酶(SOD)测定试剂盒、丙二醛(MDA)测定试剂盒,南京建成生物工程研究所;7600型全自动生化分析仪,HITACHI公司,日本;紫外-可见分光光度计,上海激光技术有限公司。
1.3 实验动物分组及饲养昆明系清洁级小鼠72只,体质量(20±2)g,雌雄各半,由延边大学医学部动物实验科提供。在实验环境下,适应性饲养3 d,按体质量随机分成6组,每组12只。正常对照组(喂普通饲料)、模型对照组(肥胖造型,喂高脂饲料)、泽泻多糖组(肥胖造型,喂高脂饲料,泽泻多糖)、泽泻水提物组(肥胖造型,喂高脂饲料,泽泻水提物)、泽泻醇提物组(肥胖造型,喂高脂饲料,泽泻醇提物)、胶股蓝片组(肥胖模型,喂高脂饲料,胶股蓝片),除正常对照组饲喂普通饲料外,其余各组均饲喂高脂饲料,各组小鼠自由进食饮水,室温为20℃~23℃。, 百拇医药(李淑子 金在久 张善玉)
【关键词】 泽泻;多糖;脂代谢;SOD;MDA
The effects of alisma orientalis’s extracts on blood lipid and antioxidation of experimental hyperlipidemia mice
LI shu-zi, JIN zai-jiu, ZHANG shan-yu.
Department of Ophthalmology, Eye and Otorhinolaryngology Hospital, Yanbian 133000, China
【Abstract】 Objective To study the effect of water and alcohol extracts of Talisman orientalis andpolysaccharide on blood lipid and antioxidation of experimental hyperlipidemia mice.Methods All the mice were fed with foods abundant in high-fat to establish model of hyperlipidemia. They were divided randomly by weight into the model, control, polysaccharide, extracts of Talisman orientalis groups, and the Jiaogulan troche group as positive control. The mice were fed with foods abundant in high-fat for 2 weeks, then administrated orally with extracts of Talisman orientalis for 21 days. The total cholesterol (TC), triglyceride(TG) and high-density lipoprotein (HDL-C)in fat mice’s blood serum and liver's SOD and liver's MDA were determined. The immune function was observed through calculated the mice's spleen and thymus index.Results The water and alchohl extracts of Talisman orientalis and polysaccharide can decrease the TC, TG, increase the HDL-C and improve the arteriosclerosis Index (AI), increase the SOD vitality and decrease the MDA content of liver significantly, increase the fat mice's spleen and thymus index observably.Conclusion The extracts of Talisman orientalis can not only accommodate disorders of metabolizing blood lipid, but also enhance anti-oxidation capacity and immune function of hyperlipidemia mice.
【Key words】 Alisman orientalis;Polysaccharide;Fat metabolize;SOD;MDA
泽泻为泽泻科植物泽泻Alisma orientalis(Sam.)Juzep.的干燥块茎。其性寒,味甘、淡,归肾、膀胱经。具有利水渗湿、泄热之功效。用于小便不利、水肿胀满、泄泻、尿少、痰饮、眩晕、热淋涩痛等症。近年来研究表明,泽泻除具有明显的利尿作用外,还具有降血压、降血糖、抗脂肪肝、降血脂及抗动脉粥样硬化等作用[1]。对泽泻的化学成分和实验药理学的研究也多集中在利尿和降血脂方面。研究资料显示泽泻降血脂成分主要是泽泻醇A、泽泻醇B、乙酸泽泻醇醋酸酯等脂溶性成分,其降脂作用的机理可能是抑制胆固醇的吸收及影响胆固醇在小肠的酯化[2,3]。近年来研究表明植物多糖具有重要的生理活性,这些多糖参与了生物体中细胞的各种活动,具有免疫调节、抗肿瘤、降血糖、降血脂、抗氧化、抗衰老、抗病毒等生物活性[4]。为此本实验将泽泻多糖、泽泻水提物及泽泻醇提物分别灌胃高脂血症小鼠,旨在比较三种提取物对小鼠脂代谢作用影响的差
别,并进行了相关指标的测定,为泽泻的开发和应用提供理论依据。
1 实验材料与仪器
1.1 药品泽泻饮片(产自广西,符合2005年药典标准);胶股蓝片(广州白云山制药股份有限公司,批号:07021011)。
1.2试剂与仪器胆固醇、牛胆酸钠,北京奥博星生物技术责任有限公司;总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白(HDL-C)测定试剂盒,上海荣盛生物科技有限公司; 超氧化物歧化酶(SOD)测定试剂盒、丙二醛(MDA)测定试剂盒,南京建成生物工程研究所;7600型全自动生化分析仪,HITACHI公司,日本;紫外-可见分光光度计,上海激光技术有限公司。
1.3 实验动物分组及饲养昆明系清洁级小鼠72只,体质量(20±2)g,雌雄各半,由延边大学医学部动物实验科提供。在实验环境下,适应性饲养3 d,按体质量随机分成6组,每组12只。正常对照组(喂普通饲料)、模型对照组(肥胖造型,喂高脂饲料)、泽泻多糖组(肥胖造型,喂高脂饲料,泽泻多糖)、泽泻水提物组(肥胖造型,喂高脂饲料,泽泻水提物)、泽泻醇提物组(肥胖造型,喂高脂饲料,泽泻醇提物)、胶股蓝片组(肥胖模型,喂高脂饲料,胶股蓝片),除正常对照组饲喂普通饲料外,其余各组均饲喂高脂饲料,各组小鼠自由进食饮水,室温为20℃~23℃。, 百拇医药(李淑子 金在久 张善玉)