查询词典 D.P.

Based on relative literatures,this part has included five resesearch aspects as below.1 Fifteen compounds were isolated and purified by extraction,column chromatography,and their structures were determined on the basis of spectral analysis: acteoside(Ⅰ-1),isoacteoside(Ⅰ-2),crenatoside(Ⅰ-3),cistanoside F(Ⅰ-4),sinapoyl-4-O-β-D-glucoside(Ⅰ-5),adenosine(Ⅰ-6),β-siterol(Ⅰ-7),oleanic acid(Ⅰ-8), succinic acid(Ⅰ-9),caffeic acid(Ⅰ-10),protocatechuic aldehyde(Ⅰ-11),p-hydro xybenzyl alcohol(Ⅰ-12),β-daucosterol(Ⅰ-13),D-galacitol(Ⅰ-14),D-mannitol(Ⅰ-15).Ⅰ-4～15 were obtained from this plant for the first time,andⅠ-6,7,9,and 13 were isolated from Orobanche genus for the first time.2 The scavenging test of DPPH showed that most compounds have comparative antioxidant activity as L-ascorbic acid and part of them show better activity such as the O.coerulescens extract and phenylethanoid glycosides.Acteoside showed potent free radical scavenging effects with a median inhibition concentration of 25.6μg/ml.3 The anti-HBV activities of acteoside,isoacteoside and crenatoside were measured,and all of them showed suppressive activity on the expression of HBsAg and HBeAg in the HepG2.2.15 cell line.

本论文在文献调研基础上对紫花列当化学成分及生物活性进行了研究，并从免疫抗病毒角度探讨紫花列当中特征性成分类叶升麻苷的肝保护作用及其机制。1采用大孔树脂、硅胶和Sephadex LH-20等色谱技术对紫花列当进行系统的植物化学研究，从中分离得到19个化合物，利用UV和NMR等波谱手段及理化性质鉴定了其中的15个化合物，分别为类叶升麻苷(Ⅰ-1)、异类叶升麻苷(Ⅰ-2)、crenatoside(Ⅰ-3)、cistanoside F(Ⅰ-4)、sinapoyl-4-O-β-D-glucoside(Ⅰ-5)、腺苷(Ⅰ-6)、β-谷甾醇(Ⅰ-7)、齐墩果酸(Ⅰ-8)、琥珀酸(Ⅰ-9)、咖啡酸(Ⅰ-10)、原儿茶醛(Ⅰ-11)、对羟甲基苯甲酸(Ⅰ-12)、β-胡萝卜苷(Ⅰ-13)、D-半乳糖醇(Ⅰ-14)和甘露醇(Ⅰ-15除化合物Ⅰ-1、Ⅰ-2和Ⅰ-3外，其余化合物均为首次从该植物中分离得到。2)通过大孔树脂富集该药材有效部位苯乙醇总苷，并采用HPLC测得其所含特征性成分类叶升麻苷的含量可达80%以上。3DPPH自由基清除试验显示紫花列当提取物及其所含的苯乙醇苷类化合物均具有较好的抗氧化能力，其清除DPPH自由基能力接近于抗坏血酸。4采用卡介苗整体致敏、脂多糖离体攻击构建大鼠原代肝细胞免疫性损伤模型，在体外观察类叶升麻苷的保肝作用。

Similar in concept, scope and structure to Phaidon's successful volume Vitamin P, Vitamin D presents, in A to Z order, the work of 109 artists who have emerged internationally since 1990 using the medium of drawing.

类似的概念，范围和结构，以phaidon的成功量维生素P ，维生素D的礼物，在A到Z秩序，工作的109艺术家谁出现了自1990年以来，在国际上使用的媒介绘图。

When dietary vitamin A supplements ranged from 1×10〓 to 1×10〓 IU/kg, vitamin D significantly (P＜0.05) decreased the ratio of calcite/aragonite in shell.

当饲料中维生素A的添加量在1×10〓IU/kg到1×10〓IU/kg的范围内，维生素D显著降低贝壳中方解石/文石的比例（P＜0.05）。

D.P.H. Doctor of Public HealthWe agree to draw at30 days D/P.

我们同意开立30天期的付款交单汇票。

Dr. Adolf P. Shvedchikov, Ph.D., Litt. D. Russian famous scientist, poet and translator. Born May 11, 1937, Shakhty, Russia. Graduate 1960, Moscow State University.

阿道夫P·斯维德柴可夫，哲学博士和文学博士；俄罗斯著名的科学家、诗人、翻译家。1937年5月11日生于俄罗斯的沙赫蒂市。1960年毕业于莫斯科国立大学。

We have shot dead four terrorists and managed to arrest nine suspected terrorists, P.D.

我们射死四个恐怖分子和拘捕九个可疑的恐怖分子，P.D。

Mr. P.D. Sutherland in his personal capacity is appointed Chairman of the Committee.

任命P.D。萨瑟兰先生以个人身份担任委员会主席。

This page hosted by: P.D.

本页主办单位： p.d。

It happened in Second Planting P.D.

那是在Second Planting(P.D.1220年)(对不起对晨风天文历法不熟悉)发生的。

Among detective story writers, P.D.

在侦探小说家中，P.D。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！