Objective In drugs for i nvigorating blood circulation, to find a herb that can stimulate afferent discha rge of muscle spindle. Methods A single muscle spindle was isolated from sartorial mus cle of toad. Using ai...Objective In drugs for i nvigorating blood circulation, to find a herb that can stimulate afferent discha rge of muscle spindle. Methods A single muscle spindle was isolated from sartorial mus cle of toad. Using air-gap technique, afferent discharge of the muscle spindle was recorded. Effects of Angelica Sinensis, Salvia Miltiorrhiza, and Safflower o n afferent discharge of the muscle spindle were observed. Results Angelica Sinensis could distinctly increase afferent di scharge frequency of the muscle spindle, and this increase was dose-dependent. But Salvia Miltiorrhiza and Safflower had no this excitatory effect. Conclusion It is known that Angelica Sinensis can invigorate bl ood circulation, and we have found its excitatory effect on muscle spindle which makes it possible to serve people with muscle atrophy if more evidences from cl inical experiments are available.展开更多
Objective To study the effects of different concentrations of Quercetin on nitric oxide (NO) production and membrane fluidity of the injured human umbilical vein vascular endothelial cell line(ECV 304) with hypoxia...Objective To study the effects of different concentrations of Quercetin on nitric oxide (NO) production and membrane fluidity of the injured human umbilical vein vascular endothelial cell line(ECV 304) with hypoxia and the lack of glucose. Methods The experiments were performed in the culture of ECV 304 injured with hypoxia and the lack of glucose in vitro. The releases of intracellular lactate dehydrogenase(LDH) of ECV 304 was measured with automatic biochemistry analysis. NO level of ECV 304 was monitored with colorimetry. The membrane fluidity of ECV 304 was measured with the fluorescence polarization method. Results After ECV 304 was cultured in hypoxia and the the lack of glucose for 24 hours, the release of LDH and the membrane fluidity were increased significantly; NO level was decreased. Preincubation of ECV 304 with 20, 80,160 μ mol·L -1 of Quercetin for 24 hours reduced LDH activity, membrane fluidity and increased the level of NO in hypoxia and the lack of glucose induced ECV 304. Conclusion These results demonstrate that Quercetin can produce the protective effect on hypoxia and the lack of glucose induced injury of ECV 304 by increasing release of NO and changing membrane fluidity.展开更多
Introduction Les découvertes numismatiques récentes justifient un réexamen de la période mal connue des dernières années de la dynastie artaxiade en Grande-Arménie(fondée vers 1...Introduction Les découvertes numismatiques récentes justifient un réexamen de la période mal connue des dernières années de la dynastie artaxiade en Grande-Arménie(fondée vers 189 av.J.-C.par Artaxias Ier),et plus particulièrement la période concernant le ou les règnes d’Erato,reine d’Arménie.展开更多
Chinese President Xi Jinping awarded Cambodian Queen Mother,Norodom Monineath Sihanouk,the Friendship Medal of the People’s Republic of China at a ceremony at the Great Hall of the People in Beijing on November 6.Que...Chinese President Xi Jinping awarded Cambodian Queen Mother,Norodom Monineath Sihanouk,the Friendship Medal of the People’s Republic of China at a ceremony at the Great Hall of the People in Beijing on November 6.Queen Mother Monineath is an important witness and promoter of China-Cambodia friendship,who has forged a tight bond with China since she accompanied Norodom Sihanouk,then Cambodian prince,to China in 1958 for the first time,Xi said when delivering a speech.展开更多
建立气相色谱-串联质谱法(GC-MS/MS),同时测定啤酒花中多农残检测的方法。样品经过乙腈提取,SupelTM QuE Verde提取和净化后,正己烷定容GC-MS/MS动态多反应监测模式测定,外标法定量。32种农药残留分析物在0.01-0.1mg/L线性范围内呈现良...建立气相色谱-串联质谱法(GC-MS/MS),同时测定啤酒花中多农残检测的方法。样品经过乙腈提取,SupelTM QuE Verde提取和净化后,正己烷定容GC-MS/MS动态多反应监测模式测定,外标法定量。32种农药残留分析物在0.01-0.1mg/L线性范围内呈现良好线性关系,相关系数均大于0.999,加标回收率为67.2%-108%,相对标准偏差(RSD)为3.5-8.5%,方法定量限为10μg/kg。本方法对于啤酒花中多农药残留的检测分析结果准确率高,可靠性强,适合检测啤酒花中32种多农药残留含量的检测。展开更多
文摘Objective In drugs for i nvigorating blood circulation, to find a herb that can stimulate afferent discha rge of muscle spindle. Methods A single muscle spindle was isolated from sartorial mus cle of toad. Using air-gap technique, afferent discharge of the muscle spindle was recorded. Effects of Angelica Sinensis, Salvia Miltiorrhiza, and Safflower o n afferent discharge of the muscle spindle were observed. Results Angelica Sinensis could distinctly increase afferent di scharge frequency of the muscle spindle, and this increase was dose-dependent. But Salvia Miltiorrhiza and Safflower had no this excitatory effect. Conclusion It is known that Angelica Sinensis can invigorate bl ood circulation, and we have found its excitatory effect on muscle spindle which makes it possible to serve people with muscle atrophy if more evidences from cl inical experiments are available.
文摘Objective To study the effects of different concentrations of Quercetin on nitric oxide (NO) production and membrane fluidity of the injured human umbilical vein vascular endothelial cell line(ECV 304) with hypoxia and the lack of glucose. Methods The experiments were performed in the culture of ECV 304 injured with hypoxia and the lack of glucose in vitro. The releases of intracellular lactate dehydrogenase(LDH) of ECV 304 was measured with automatic biochemistry analysis. NO level of ECV 304 was monitored with colorimetry. The membrane fluidity of ECV 304 was measured with the fluorescence polarization method. Results After ECV 304 was cultured in hypoxia and the the lack of glucose for 24 hours, the release of LDH and the membrane fluidity were increased significantly; NO level was decreased. Preincubation of ECV 304 with 20, 80,160 μ mol·L -1 of Quercetin for 24 hours reduced LDH activity, membrane fluidity and increased the level of NO in hypoxia and the lack of glucose induced ECV 304. Conclusion These results demonstrate that Quercetin can produce the protective effect on hypoxia and the lack of glucose induced injury of ECV 304 by increasing release of NO and changing membrane fluidity.
文摘Introduction Les découvertes numismatiques récentes justifient un réexamen de la période mal connue des dernières années de la dynastie artaxiade en Grande-Arménie(fondée vers 189 av.J.-C.par Artaxias Ier),et plus particulièrement la période concernant le ou les règnes d’Erato,reine d’Arménie.
文摘Chinese President Xi Jinping awarded Cambodian Queen Mother,Norodom Monineath Sihanouk,the Friendship Medal of the People’s Republic of China at a ceremony at the Great Hall of the People in Beijing on November 6.Queen Mother Monineath is an important witness and promoter of China-Cambodia friendship,who has forged a tight bond with China since she accompanied Norodom Sihanouk,then Cambodian prince,to China in 1958 for the first time,Xi said when delivering a speech.
文摘建立气相色谱-串联质谱法(GC-MS/MS),同时测定啤酒花中多农残检测的方法。样品经过乙腈提取,SupelTM QuE Verde提取和净化后,正己烷定容GC-MS/MS动态多反应监测模式测定,外标法定量。32种农药残留分析物在0.01-0.1mg/L线性范围内呈现良好线性关系,相关系数均大于0.999,加标回收率为67.2%-108%,相对标准偏差(RSD)为3.5-8.5%,方法定量限为10μg/kg。本方法对于啤酒花中多农药残留的检测分析结果准确率高,可靠性强,适合检测啤酒花中32种多农药残留含量的检测。
