[ Objective] TO observe the in-vitro antibacterial activity of Herba paederiae and Kalimeds indica （ L. ） Sch.-Bip and their antibacterial effect when being used with commonly used antibiotics. [ Method ] Staphyloco...[ Objective] TO observe the in-vitro antibacterial activity of Herba paederiae and Kalimeds indica （ L. ） Sch.-Bip and their antibacterial effect when being used with commonly used antibiotics. [ Method ] Staphylococcus aureus CMCC29178 and Escherichia coli ATCC25922 reference strains were used for the determination of minimal inhibitory concentration （MIC） and fractional inhibitory concentration （FIC） index using the broth microdilution method. [ Result] The aqueous extracts of Herba paederiae and Kalimeris indica （ L. ） Sch. -Bip had certain antibacterial effects on Staphylococcus aureus and Eschedchia coli. Synergistic effects or additive effects at different degrees were observed when they were applied with the commonly used antibiotics. [ Conclusion] Water extraction can be widely used to primarily screen medicinal plants with antibacterial activity.展开更多
目的探讨藏雪莲(SSB)多糖是否通过P38丝裂原激活蛋白激酶(P38MAPK)通路减轻中波紫外线(UVB)辐射后皮肤角质形成细胞(Ha Ca T细胞)凋亡引起炎性损伤。方法 2014年10月—2015年3月,提取SSB多糖,体外培养Ha Ca T细胞,将Ha Ca T细胞分为低...目的探讨藏雪莲(SSB)多糖是否通过P38丝裂原激活蛋白激酶(P38MAPK)通路减轻中波紫外线(UVB)辐射后皮肤角质形成细胞(Ha Ca T细胞)凋亡引起炎性损伤。方法 2014年10月—2015年3月,提取SSB多糖,体外培养Ha Ca T细胞,将Ha Ca T细胞分为低剂量辐射组(30 m J/cm2,辐射1 h,A组)和高剂量辐射组(60 m J/cm2,辐射1 h,B组);将A组和B组又分别分为对照组(1组)、辐射组(UVB,2组)、低剂量SSB多糖组(UVB+SSB 10 mg/ml,3组)和高剂量SSB多糖组(UVB+SSB 40 mg/ml,4组)。采用酶联免疫吸附实验(ELISA)法检测并比较白介素6(IL-6)、肿瘤坏死因子α(TNF-α)、P38MAPK、P53、B细胞淋巴瘤因子2(Bcl-2)、Bcl-2相关X(Bax)、半胱氨酸蛋白酶3(Caspase-3)水平。结果 A2组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平高于A1组,Bcl-2水平低于A1组(P<0.05);A3组IL-6、TNF-α、P38MAPK、Caspase-3水平高于A1组(P<0.05);A4组TNF-α、Bcl-2水平高于A1组(P<0.05);A3组、A4组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平低于A2组,Bcl-2水平高于A2组(P<0.05);A4组IL-6、TNF-α、Caspase-3水平低于A3组,Bcl-2水平高于A3组(P<0.05)。B2组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平高于B1组,Bcl-2水平低于B1组(P<0.05);B3组IL-6、TNF-α水平高于B1组,Bcl-2水平低于B1组(P<0.05);B4组IL-6、Bcl-2水平高于B1组,TNF-α、Caspase-3水平低于B1组(P<0.05);B3组、B4组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平低于B2组,Bcl-2水平高于B2组(P<0.05);B4组IL-6、TNF-α、Caspase-3水平低于B3组,Bcl-2水平高于B3组(P<0.05)。结论 SSB多糖通过P38MAPK通路减少UVB辐射后Ha Ca T细胞凋亡,进而减轻Ha Ca T细胞的炎性损伤。展开更多
基金funded by the Student Innovation Project of Southwest University for Nationalities in 2011 ( F201113001)
文摘[ Objective] TO observe the in-vitro antibacterial activity of Herba paederiae and Kalimeds indica （ L. ） Sch.-Bip and their antibacterial effect when being used with commonly used antibiotics. [ Method ] Staphylococcus aureus CMCC29178 and Escherichia coli ATCC25922 reference strains were used for the determination of minimal inhibitory concentration （MIC） and fractional inhibitory concentration （FIC） index using the broth microdilution method. [ Result] The aqueous extracts of Herba paederiae and Kalimeris indica （ L. ） Sch. -Bip had certain antibacterial effects on Staphylococcus aureus and Eschedchia coli. Synergistic effects or additive effects at different degrees were observed when they were applied with the commonly used antibiotics. [ Conclusion] Water extraction can be widely used to primarily screen medicinal plants with antibacterial activity.
文摘目的 对西藏雪莲花 (Saussureatridac tylaSch Bip .)全草化学成分进行分离鉴定。 方法 用色谱技术进行分离 ,UV ,IR ,ESIMS ,1H NMR ,13 C NMR等方法对化合物结构进行鉴定。结果 从西藏雪莲花全草的乙醇提取物中分离得到 6个化合物 ,分别鉴定为芹菜素 (apigenin ,Ⅰ ) ,木犀草素 (luteolin ,Ⅱ ) ,芹菜素 7 O β D 葡萄糖苷 (apigenin 7 O β D glucoside ,Ⅲ ) ,木犀草素 7 O β D 葡萄糖苷 (luteolin 7 O β D glucoside ,Ⅳ ) ,芹菜素 7 O β D 芦丁糖苷 (apigenin 7 O β D lutinoside,Ⅴ ) ,木犀草素 7 O β D 芦丁糖苷 (luteolin 7 O β D lutinoside,Ⅵ )。 结论 化合物Ⅰ～Ⅵ首次从该植物中得到 ,化合物Ⅴ～Ⅵ首次从风毛菊属植物中得到。
文摘目的探讨藏雪莲(SSB)多糖是否通过P38丝裂原激活蛋白激酶(P38MAPK)通路减轻中波紫外线(UVB)辐射后皮肤角质形成细胞(Ha Ca T细胞)凋亡引起炎性损伤。方法 2014年10月—2015年3月,提取SSB多糖,体外培养Ha Ca T细胞,将Ha Ca T细胞分为低剂量辐射组(30 m J/cm2,辐射1 h,A组)和高剂量辐射组(60 m J/cm2,辐射1 h,B组);将A组和B组又分别分为对照组(1组)、辐射组(UVB,2组)、低剂量SSB多糖组(UVB+SSB 10 mg/ml,3组)和高剂量SSB多糖组(UVB+SSB 40 mg/ml,4组)。采用酶联免疫吸附实验(ELISA)法检测并比较白介素6(IL-6)、肿瘤坏死因子α(TNF-α)、P38MAPK、P53、B细胞淋巴瘤因子2(Bcl-2)、Bcl-2相关X(Bax)、半胱氨酸蛋白酶3(Caspase-3)水平。结果 A2组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平高于A1组,Bcl-2水平低于A1组(P<0.05);A3组IL-6、TNF-α、P38MAPK、Caspase-3水平高于A1组(P<0.05);A4组TNF-α、Bcl-2水平高于A1组(P<0.05);A3组、A4组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平低于A2组,Bcl-2水平高于A2组(P<0.05);A4组IL-6、TNF-α、Caspase-3水平低于A3组,Bcl-2水平高于A3组(P<0.05)。B2组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平高于B1组,Bcl-2水平低于B1组(P<0.05);B3组IL-6、TNF-α水平高于B1组,Bcl-2水平低于B1组(P<0.05);B4组IL-6、Bcl-2水平高于B1组,TNF-α、Caspase-3水平低于B1组(P<0.05);B3组、B4组IL-6、TNF-α、P38MAPK、P53、Bax、Caspase-3水平低于B2组,Bcl-2水平高于B2组(P<0.05);B4组IL-6、TNF-α、Caspase-3水平低于B3组,Bcl-2水平高于B3组(P<0.05)。结论 SSB多糖通过P38MAPK通路减少UVB辐射后Ha Ca T细胞凋亡,进而减轻Ha Ca T细胞的炎性损伤。
