大黄素

And Pyricularia grisea Sacc., with EC50 values of 3.74 and 1.14 mg/L. Particularly it had excellent activity on Blumeria graminis f. sp. tritic Speer and Sphaerotheca fuliginea Poll. with EC50 values of 0.68 and 0.33 mg/L.

结果表明：大黄素甲醚对黄瓜灰霉病菌和水稻稻瘟病菌菌丝抑菌活性明显，其抑制中浓度（EC50值）分别为3.74、1.14mg/L；对小麦白粉病菌和黄瓜白粉病菌具有优异的活性，EC50值分别为0.68、0.33mg/L。

Methods: Determination of the absorption band and fluorescence spectrum of aloe-emodin respectively in dimethyl sulphoxide, normal sodium and Human serum, albumin by spectrophotometer and fluorospectrophotometer.

用紫外可见光光度计和荧光光度计测定芦荟大黄素在二甲基亚砜，生理盐水，人血蛋白中的吸收光谱和荧光谱。

The ED50s of direct virucidal activity,the inhibition effects on the multiplication and infection of CVB3 of ribavirin are 6.26μg/ml,7.55μg/ml,7.50μg/ml respectively,the corresponding figures of emodin are 1.54μg/ml,8.34μg/ml,3.06μg/ml separately.

病毒唑对CVB3直接杀灭、增殖抑制、感染阻断的ED50分别为6.26、7.55、7.50μg/ml，大黄素的相应数值分别为1.54、8.34、3.06μg/ml。

Results:In HEp-2 cell system,the median effect dose(ED50) sofdirect virucidal activity,the inhibition effects on the multiplicationand infection of HSV-2 333 ACV are 16.45 μg/ml,10.85μg/ml,18.62μg/ml respectively,the corresponding figures of emodin are 1.28μg/ml,1.40 μg/ml,1.44μg/ml separately.

结果：在HEP2细胞系统中，ACV对HSV-2 333株的直接杀灭、增殖抑制、感染阻断的ED50依次为16.45、10.85、18.62μg/ml，大黄素的相应数值依次为1.28、1.40、1.44μg/ml。

Yields of resveratrol and emodin from fermentation broths were 1.2 and 3.3 times higher,respectively, than that by MAE,and 1.6 and 4.2 times higher,respectively,than that by stirring extraction at room temperature.

选择此双水相体系对虎杖发酵液进行提取，所得的白藜芦醇和大黄素的提取率分别是微波辅助提取的1.2倍和3.3倍，分别是常温搅拌提取的1.6倍和4.2倍。

Contents of resveratrol and emodin in the extract of fermentation broths were 1.3 and 2.3 times higher,respectively,than that by MAE,and 1.4 and 2.6 times higher, respectively,than that by stirring extraction at room temperature,while contents of glucose and polysaccharides in the extract were 27%and 79%,respectively,of that by MAE and stirring extraction at room temperature.

发酵液提取物中白藜芦醇和大黄素的含量分别为微波辅助提取的1.3倍和2.3倍，分别为常温搅拌提取的1.4倍和2.6倍，而葡萄糖和多糖的含量分别为后两者的27%和79%。

Emodin induced the nuclei of K562 with anomalistic and fragmentized for 96 hours. Agarose gel electrophoresis of DNA revealed a typical DNA ladder map of apoptosis.

大黄素作用96h后，荧光显微镜下可见细胞核不规则，核碎裂呈新月形改变，DNA琼脂糖凝胶电泳显示，基因组DNA显现典型的凋亡细胞的梯状图谱。

When cells were treated by Aloe-emodin, the value of intracellular reactive oxygen species and DNA damage was increased.

我们也发现当给予芦荟大黄素时，会增加细胞内自由基的产生，以及造成细胞的氧化伤害。

We have demonstrated that Aloe-emodin inhibits the invasion of human colon cancer cells by suppressing MMP-2 and MMP-9 expressions.

在我们的研究结果中亦指出，芦荟大黄素可经由抑制MMP-2与MMP-9的表现进而抑制细胞的转移。

Aloe-emodin caused cell death by inducing of apoptosis.

而芦荟大黄素是以诱导细胞凋亡的方式使得细胞死亡。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。