目的:研究金荞麦黄酮对2型糖尿病(T2DM)小鼠糖脂代谢及体内氧化应激作用。方法:昆明种小鼠喂食高脂饲料结合一次性腹腔注射40 mg/kg的链脲佐菌素建立糖尿病小鼠模型。将成模小鼠随机分为模型对照组、二甲双胍组(75 mg/kg)、金荞麦黄酮组...目的:研究金荞麦黄酮对2型糖尿病(T2DM)小鼠糖脂代谢及体内氧化应激作用。方法:昆明种小鼠喂食高脂饲料结合一次性腹腔注射40 mg/kg的链脲佐菌素建立糖尿病小鼠模型。将成模小鼠随机分为模型对照组、二甲双胍组(75 mg/kg)、金荞麦黄酮组(50、100、200mg/kg),另设正常对照组。观察给药期间各组小鼠体重和空腹血糖(FBG)变化。给药6周进行糖耐量实验,计算糖耐量曲线下面积(area under the curve,AUC);然后小鼠眼球取血,检测血清中胰岛素水平(FINS)、甘油三酯(TG)、胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、超氧化物歧化酶(SOD)、丙二醛(MDA)、过氧化氢酶(CAT)、谷胱甘肽过氧化物酶(GSH-Px),并计算胰岛素抵抗指数(HOMA-IR)和胰岛素敏感指数(ISI)。结果:与正常对照组比较,模型对照组小鼠体重减轻,FBG、FINS、糖耐量、TG、TC、LDL-C、MDA、HOMA-IR升高,HDL-C、SOD、CAT、GSH-Px、ISI下降。与模型对照组比较,金荞麦黄酮在50~200mg/kg剂量范围内可不同程度回调上述指标,且金荞麦黄酮(100、200mg/kg)剂量组作用效果更为显著。结论:金荞麦黄酮在50~200mg/kg剂量范围内对T2DM小鼠有降血糖作用,其作用机制与调节血脂代谢和抗氧化作用有关。展开更多
[Objective] This study aimed to identify the in vitro antibacterial activity of golden buckwheat extract and investigate the therapeutic effect of its preparation on mycoplasma infection. [Method] Through measuring th...[Objective] This study aimed to identify the in vitro antibacterial activity of golden buckwheat extract and investigate the therapeutic effect of its preparation on mycoplasma infection. [Method] Through measuring the minimum inhibitory concentra-tion, the in vitro antibacterial activity of golden buckwheat water extract was deter-mined; meanwhile, the therapeutic effect of golden buckwheat oral solution on my-coplasma infection was determined by artificial y infecting chickens with Mycoplasma gal isepticum culture. [Results] The golden buckwheat water extract had obvious in-hibitory effects against Pseudomonas aeruginosa and Escherichia coli, and a certain inhibitory effect on Salmonel a and Staphylococcus aureus; administration of golden buckwheat oral solution at the dose of 0.5%-1.0% continuously for 5 d had a good therapeutic effect against mycoplasma infection. [Conclusion] The study provides sci-entific bases for further study on the antibacterial activity of golden buckwheat and its application.展开更多
Effects of light intensity on growth, development and formation on Fagopy- rum cymosum were explored with natural light intensities at 100%（A）, 85.2%（B）, 75.8%（C） and 59.7%（D）. The results showed that the decl...Effects of light intensity on growth, development and formation on Fagopy- rum cymosum were explored with natural light intensities at 100%（A）, 85.2%（B）, 75.8%（C） and 59.7%（D）. The results showed that the decline of light intensity re- duced nutrient growth period, so that plant growth stage entered in advance and extended, which indicated that the decline of light intensity would lower leaf number and area, the number of twigs from the stem, as well as photosynthate. Further- more, the reduction degree increased upon light intensity decrease degree, and the proper shading improved stem height and leaf area enhanced before growth term.展开更多
文摘目的:研究金荞麦黄酮对2型糖尿病(T2DM)小鼠糖脂代谢及体内氧化应激作用。方法:昆明种小鼠喂食高脂饲料结合一次性腹腔注射40 mg/kg的链脲佐菌素建立糖尿病小鼠模型。将成模小鼠随机分为模型对照组、二甲双胍组(75 mg/kg)、金荞麦黄酮组(50、100、200mg/kg),另设正常对照组。观察给药期间各组小鼠体重和空腹血糖(FBG)变化。给药6周进行糖耐量实验,计算糖耐量曲线下面积(area under the curve,AUC);然后小鼠眼球取血,检测血清中胰岛素水平(FINS)、甘油三酯(TG)、胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、超氧化物歧化酶(SOD)、丙二醛(MDA)、过氧化氢酶(CAT)、谷胱甘肽过氧化物酶(GSH-Px),并计算胰岛素抵抗指数(HOMA-IR)和胰岛素敏感指数(ISI)。结果:与正常对照组比较,模型对照组小鼠体重减轻,FBG、FINS、糖耐量、TG、TC、LDL-C、MDA、HOMA-IR升高,HDL-C、SOD、CAT、GSH-Px、ISI下降。与模型对照组比较,金荞麦黄酮在50~200mg/kg剂量范围内可不同程度回调上述指标,且金荞麦黄酮(100、200mg/kg)剂量组作用效果更为显著。结论:金荞麦黄酮在50~200mg/kg剂量范围内对T2DM小鼠有降血糖作用,其作用机制与调节血脂代谢和抗氧化作用有关。
基金Supported by the Special Project of Department of Science and Technology of Hebei Province(08820412D)the Special Project of Qinhuangdao Municipal Bureau of Science and Technology[Qinkeji(2003)30-35]+1 种基金the Special Project of Shijiazhuang Municipal Bureau of Science and Technology(07150193A)the Scientific Research Innovation Team Project of Hebei Normal University of Science and Technology(TD201201)~~
文摘[Objective] This study aimed to identify the in vitro antibacterial activity of golden buckwheat extract and investigate the therapeutic effect of its preparation on mycoplasma infection. [Method] Through measuring the minimum inhibitory concentra-tion, the in vitro antibacterial activity of golden buckwheat water extract was deter-mined; meanwhile, the therapeutic effect of golden buckwheat oral solution on my-coplasma infection was determined by artificial y infecting chickens with Mycoplasma gal isepticum culture. [Results] The golden buckwheat water extract had obvious in-hibitory effects against Pseudomonas aeruginosa and Escherichia coli, and a certain inhibitory effect on Salmonel a and Staphylococcus aureus; administration of golden buckwheat oral solution at the dose of 0.5%-1.0% continuously for 5 d had a good therapeutic effect against mycoplasma infection. [Conclusion] The study provides sci-entific bases for further study on the antibacterial activity of golden buckwheat and its application.
基金Special Funds for Fundamental Work of Ministry of Science and Technology(2006BAD13B02-13)~~
文摘Effects of light intensity on growth, development and formation on Fagopy- rum cymosum were explored with natural light intensities at 100%（A）, 85.2%（B）, 75.8%（C） and 59.7%（D）. The results showed that the decline of light intensity re- duced nutrient growth period, so that plant growth stage entered in advance and extended, which indicated that the decline of light intensity would lower leaf number and area, the number of twigs from the stem, as well as photosynthate. Further- more, the reduction degree increased upon light intensity decrease degree, and the proper shading improved stem height and leaf area enhanced before growth term.
