查询词典 luteolin

A microcolumn high performance liquid chromatography method for the determination of polyphenols (chlorogenic acid, quercitrin 3 glucoside, luteolin 7 glucoside, luteolin 7 galactoside, quercitrin , luteolin) in honeysuckle flower was studied.

研究了用微柱高效液相色谱法测定金银花中的几种多酚类物质(氯原酸、木犀草黄素、木犀草黄素 7 葡萄糖甙、木犀草黄素 7 半乳糖甙、槲皮素及槲皮素 3 葡萄糖甙)的方法。

Compare with other flavonoid the inhibition effect of Luteolin is better than Quercetin and Genistein.

并且与其他类黄酮化合物比较Luteolin的抑制效果更胜於大众所熟知的抗氧化、抗癌物质物质Quercetin、Genistein。

Luteolin a standard for the control, by ultraviolet spectrophotometry of luteolin extraction were determined.

以木犀草素标准品为对照，用紫外分光光度法对木犀草素提取量进行测定。

Result: Seven compounds were obtained and they are identified as luteolin, 5,7,4′-trihydroxy-3′-methoxy flavone, luteolin-7-O-β-D-glucoside, apigenin,β-sitosterol, stigmasterol, ursolic acid.

结果：从乙醇提取物中分离并鉴定了7个化合物，分别为：5 ，7，3′，4′-四羟基黄酮，5 ，7，4′-三羟基- 3′-甲氧基黄酮，5 ，3′，4′-三羟基黄酮- 7- O-β- D-葡萄糖苷，5 ，7，4′-三羟基黄酮，β-谷甾醇，豆甾醇和熊果酸。

Result:Eight compounds were elucidated as β amyrin palmitate, taraxastery acetate, luteolin 7 O α L rhamanopyranosyl (1→2)β D glucopyranoside,luteolin 7 O β D glucopyranoside, triacontanic acid,β sitosterol, stigmasterol and stigmast 7 en 3β ol.

结果 ：从全草中分离得到 5个化合物，β香树脂醇棕榈酸酯，蒲公英醇乙酸酯，木樨草素 7 O α L 鼠李糖基(1→ 2 )β D 葡萄糖苷，木樨草素 7 O β D 葡萄糖苷，三十碳酸；1个混合物，β谷甾醇、豆甾醇、豆甾 7 烯 3β醇。

Their structures were elucidated on the basis of chemical and spectral analysis. RESULTS: Twelve compounds were isolated from the 95% ethanol extract of the aerial parts of L.rotata. Their structures were identified as luteolin (1), luteolin 7-O-β-D-glucopyranoside (2), apigenin (3), apigenin 7-O-β-D-glucopyranoside (4), apigenin7-O-6-(E-p-coumaroyl-β-D-galactopyranoside (5), tricin (6), acacetin (7), genkwanin (8), lamiophlomiol A (9), lamiophlomiol B (10), shanzhiside methyl ester(11)and syringic acid (12), respectively.

结果：从独一味地上部分的乙醇提取物中分离得到了12个化合物，分别鉴定为木犀草素(1)、木犀草素7-O-β-D-吡喃葡萄糖苷(2)、芹菜素(3)、芹菜素7-O-β-D-吡喃葡萄糖苷(4)、芹菜素7-O-（6-反式－对－香豆酰基）－β-D-半乳糖苷(5)、小麦黄素(6)、刺槐素(7)、芜花素(8)、独一味素A(9)、独一味素B(10)、山桅苷甲酯(11)及丁香酸(12)。

RESULTS:12 compounds separated from Dendranthema nankingense were elucidated as cerotic acid,β-sitosterol,ursolic acid,chrysoeriol,luteolin,caffeic acid,daucosterol,chrysoeriol-7-O-glucoside,luteolin-7-O-glucoside,linarin,rutin and potassium nitrate.

结果：从菊花脑中分离得到12个化合物，即正二十六烷酸、β-谷甾醇、熊果酸、金圣草黄素、木犀草素、咖啡酸、胡萝卜苷、金圣草黄素-7-O--βD-葡萄糖苷、木犀草素-7-O--βD-葡萄糖苷、蒙花苷、芦丁、硝酸钾。

RESULTS: A germacrane sesquiterpenoid, incaspitolide D (1), along with-N-benzoylphenylalanine--2-benzamido-3-phenyl- propyl ester (2), indole-3-carboxylic acid (3), apigenin (4), diosmetin (5) and luteolin (6) was isolated. CONCLUSION: Compounds 1-5 were isolated for the first time from Vernonia patula.

结果：分离到1个牻牛烷型倍半萜内酯， 1个苯丙氨酸衍生物、1个生物碱和3个黄酮化合物，根据波谱数据和X-衍射分析分别鉴定为：incaspitolide D (1)，-N-苯甲酰基苯基丙氨酸–-2-苯甲酰氨基–3-苯基丙酯(S-N-benzoylalanine-–2-benzamido-3-phenylpropyl ester， 2；吲哚-3-羧酸(indole-3-carboxylic acid， 3)；香叶木素(diosmetin， 4)，芹菜素(apigenin， 5)和木犀草素(luteolin， 6)。

METHODS: Using tissue culture technique, the maximal non-toxic concentration of luteolin in swine testicle cell culture was measured, and the inhibitory effect of luteolin on TGEV was measured by cytophathogenic effect observation and crystal violet measurement. In addition, the degrees of inhibition of the luteolin on CPE of virus in cell culture were observed by changing sequence of adding the vires and the drag. RESULTS : The maximal non-toxic concentration of luteolin was 873.39 μmol/L.

采用细胞培养法，通过结晶紫摄入量测定结合细胞病变作用，观察木犀草素在不同的加药方式下，对感染TGEV的猪睾丸细胞的保护作用、结果：TGEV病毒先吸附ST细胞再加入药液，先与TGEV病毒孵育再接种于卯细胞，或药液先与细胞孵育再用病毒感染等不同方式下，木犀草素在0.84-54.50μmaol／L浓度范围内，均能明显地提高细胞的存活数。

Objective:to primarily find out the effect about luteolin rivalizing ototoxicity of gentamicin.methods: in this experimental study,gentamicin group was compared to the group of gentamicin with different dose of luteolin (10 mg,20 mg).the changes in hearing and vestibule function were discovered by measuring the threshold of abr and the frequency of eng.the method of cochlear preparation stained with sdh was used to observe morphological changes in cochleas.results: the auditory examination results showed that the thresholds of the group of gentamicin with different dose of luteolin were higher than the one of the gentamicin group,and the difference was significant in statistics.the morphology analysis result was consistent with auditory examination.

目的：初步了解木樨草素对庆大霉素耳毒性的影响。方法：设庆大霉素组与庆大霉素加不同剂量木樨草素（10 mg、20 mg）两组，并进行组间比较，观察听性脑干反应阈值、眼震电图的频率，了解其听功能及前庭功能的变化。结合耳蜗基底膜铺片琥珀酸脱氢酶染色方法观察耳蜗形态学变化。结果：听功能检查结果显示，庆大霉素加不同剂量木樨草素组的abr阈值明显低于庆大霉素组，经统计学处理，差异有显著性。形态学检查结果与听功能检查结果一致。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。