查询词典 quercetin

Objective1 To study the effects of myricetin, quercetin and kaempferol on the activity of recombinant human phosphor-inositide 3-kinase (PI3K) p110β subunit.

目的：研究杨梅素、槲皮素和山萘黄素对重组人肌醇磷脂3-激酶(PI3K) p110β催化亚基的直接作用。

Results: Myricetin and quercetin other than kaempferol showed the inhibitory effects against p110β PI3K, and their IC50 was 2.93μmol/L and 9.91μmol/L, respectively.

结果：杨梅素和榭槲皮素对重组人PI3K p110β催化亚基有抑制作用，IC50分别为2.93μmol/L和9.91μmol/L，而山萘黄素对PI3K p110β催化亚基则无抑制作用。

For the study, the researchers asked participants about their diet and estimated consumption of three flaonols: quercetin, which is most abundant in onions and apples; kaempferol, found in spinach and some cabbages; and myricetin, found mostly in red onions and berries. Oer the next eight years, 529 deeloped pancreatic cancer.

研究人员询问参与者有关他们的饮食，并估算吃三种黄酮醇的量：五羟黄酮，在葱和苹果中含量最多；山奈醇，存在菠菜和一些甘蓝菜中；杨梅黄酮，主要存在于红洋葱和莓果中，在之后八年内有529人罹患胰脏癌。

Green tea contains a number of flavonols with the basic structure Specific flavonols found in tea include myricetin (hydroxyls at carbon 3', 4', and 5'), quercetin (hydroxyls at positions 3' and 4'), and kaempferol (hydroxyl at position 4'), and their glycosides.

绿茶含有一些黄酮醇，其基本化学结构为：茶中特有的黄酮醇有杨梅黄酮(3'、4'、5'碳位上羟基化)、豕草花粉苷(3'和4'碳位上羟基化)，莰非醇(4'碳位上羟基化)，以及它们的糖苷物。

In order to explore molecular mechanism and inhibitory effects of flavones and flavonols on human esophageal carcinoma cells, the inhibition of proliferation and the induction of G2/M cell cycle arrest in KYSE-510 cells and OE33 cells treated with three flavones and three flavonols (quercetin, kaempferol, myricetin) were analyzed by MTT array and flow cytometry.

为了探索它们对人食管癌细胞的抑制作用和分子机制，采用MTT法和流式细胞术，鉴定了3种黄酮(木犀草素、白杨素、芹菜素)和3种黄酮醇(槲皮素、山奈酚、杨梅素)对2株人食管癌细胞(鳞癌KYSE-510和腺癌OE33)的增殖抑制作用和G2/M周期停滞的诱导作用。

Methods: Recombinant human PI3K p110β subunit was constructed by gene engineering, and then incubated with phosphatidylinositol-4, 5-bisphosphate, 32P-labeled ATP and myricetin, quercetin or kaempferol.

通过基因工程技术的方法获得PI3K p110β催化亚基。

To select superior medicinal provenances of Cyclocarya paliurus, the geographic variation of flavonoid compounds (kaempferol, quercetin, and isoquercetin) in leaves of one-year-old seedlings of 11 provenances was studied.

以青钱柳Cyclocarya paliurus 11个种源1年生苗的叶片为材料，研究青钱柳叶片中黄酮类化合物的地理变异，初步筛选出黄酮类化合物质量分数高的优良药用种源。

The rate constants of the reactions of α-hydroxyl ethyl peroxyl radicalwith quercetin, ruitn, catechin and baicalin were determined through pulse radiolysisstudies to be 〓,〓,〓〓 and 〓, respectively.

用脉冲辐解的方法得到槲皮素、芦丁、儿茶素以及黄芩甙与α-羟乙基过氧自由基的反应速率常数分别为〓；3.4〓；〓和〓。

Quercetin was prepared by hydrolyzing rutin. Their antioxidant activities were tested using phosphomolybdate method, and compared with those of BHT and V.

采用磷钼酸盐法测定了不同质量浓度的粗提物、芦丁和槲皮素的抗氧化活性，并与BHT、V的抗氧化活性进行了比较。

AbstractObjectiveTo establish a method for determination of the content of quercetin in Phyllanthus emblica L..

目的建立余甘子药材中槲皮素含量测定的方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。