目的研究川芎提取物抗脑缺血的作用及NF-κB机制。方法大脑中动脉栓塞法制备大鼠脑缺血再灌注模型,实验组给予川芎提取物(100mg/kg),每天灌胃给药1次,连续4周,模型组给予等量生理盐水,测定脑梗死面积,HE染色法检测脑组织的损伤程度。流...目的研究川芎提取物抗脑缺血的作用及NF-κB机制。方法大脑中动脉栓塞法制备大鼠脑缺血再灌注模型,实验组给予川芎提取物(100mg/kg),每天灌胃给药1次,连续4周,模型组给予等量生理盐水,测定脑梗死面积,HE染色法检测脑组织的损伤程度。流式细胞仪检测氧糖剥夺胶质细胞的凋亡率,Pathway Finder Array法筛选出NF-κB信号通路被激活,免疫荧光法进一步检测NF-κB p65亚基是否入核。结果与模型组相比,川芎提取物能减少脑缺血再灌注大鼠的脑梗死面积,降低OGD胶质细胞的凋亡率,NF-κB信号通路在脑缺血再灌注后被激活,川芎提取物使pP65进入细胞核内的数量显著降低。结论川芎提取物对大鼠脑缺血损伤有保护作用,可能与抑制NF-κB信号通路的激活有关。展开更多
Primary speciation of eight elements (Cu,Zn,Mn,Fe,Ca,Mg,Sr and Ni)in ligusticum wallichii Franch was studied by atomic absorption spectrometry.The contents of eight elements in six samples were determined,and the spec...Primary speciation of eight elements (Cu,Zn,Mn,Fe,Ca,Mg,Sr and Ni)in ligusticum wallichii Franch was studied by atomic absorption spectrometry.The contents of eight elements in six samples were determined,and the species distributions of the primary speciation analysis,such as extractive rate and immerse-residue ratio,were also calculated.The results showed that the concentration of eight element in the residue was high,and extractive rate of Ni and Mg was higher than other elements.展开更多
文摘目的研究川芎提取物抗脑缺血的作用及NF-κB机制。方法大脑中动脉栓塞法制备大鼠脑缺血再灌注模型,实验组给予川芎提取物(100mg/kg),每天灌胃给药1次,连续4周,模型组给予等量生理盐水,测定脑梗死面积,HE染色法检测脑组织的损伤程度。流式细胞仪检测氧糖剥夺胶质细胞的凋亡率,Pathway Finder Array法筛选出NF-κB信号通路被激活,免疫荧光法进一步检测NF-κB p65亚基是否入核。结果与模型组相比,川芎提取物能减少脑缺血再灌注大鼠的脑梗死面积,降低OGD胶质细胞的凋亡率,NF-κB信号通路在脑缺血再灌注后被激活,川芎提取物使pP65进入细胞核内的数量显著降低。结论川芎提取物对大鼠脑缺血损伤有保护作用,可能与抑制NF-κB信号通路的激活有关。
文摘Primary speciation of eight elements (Cu,Zn,Mn,Fe,Ca,Mg,Sr and Ni)in ligusticum wallichii Franch was studied by atomic absorption spectrometry.The contents of eight elements in six samples were determined,and the species distributions of the primary speciation analysis,such as extractive rate and immerse-residue ratio,were also calculated.The results showed that the concentration of eight element in the residue was high,and extractive rate of Ni and Mg was higher than other elements.
