HPLC测定复方莪术颗粒Ⅰ中姜黄素的含量

复议莪术颗粒是由莪术、茯苓、半夏等组成，临床应用于治疗子宫肌瘤，效果显著。方中莪术为君药，主含姜黄素。文献报道的测定方法有高效液相色谱法、薄层扫描法、反相高效液相色谱法等。     

HPLC测定复方莪术颗粒I中姜黄素的含量

复方莪术颗粒是由莪术、茯苓、半夏等组成,临床应用于治疗子宫肌瘤,效果显著。方中莪术为君药,主含姜黄素。文献报道的测定方法有高效液相色谱法、薄层扫描法、反相高效液相色谱法等。其中高效液相色谱法所使用的流动相多是乙腈或甲醇—醋酸水系统,本实验采用高效液相色谱法并首次使用乙腈—磷酸水系统作为流动相,结果准确,重现性、精密度良好。本实验研究为建立复方莪术颗粒I的质量控制方法奠定了基础。仪器与试药实验所用仪器为岛津2010高效液相色谱仪,CLASS-VP工作站。试药姜黄素对照品(批号823-9401),购自中国药品生物制品检定所。…     

温莪术油中新莪术二酮的分离分析及稳定性研究

对温莪术油中新莪术二酮的分离分析及稳定性进行研究.采用柱色谱、制备薄层、溶剂重结晶法等分离提取,经1H NMR、13C NMR、MS等波谱技术鉴定结构,并初步考察了新莪术二酮的稳定性.结果表明新莪术二酮在加热条件下不稳定,在Lewis acid催化下可异构化为莪术醇.新莪术二酮为含氧倍半烯萜类化合物,属于热敏性物质.本研究为温莪术油质量控制提供了有效数据.     

姜黄中姜黄素的提取分离及药用价值研究

姜黄素是姜黄(Curcuma longa L.)中的主要活性成分,在抗肿瘤、抗氧化、抗纤维化、抗炎、心肌保护等多方面具有显著疗效.但其化学性质不稳定,水溶性差,生物利用度低.通过综述姜黄素提取分离、药理作用及应用新进展,以期为今后姜黄素的开发利用提供科学依据.     

莪术油药学研究进展

莪术油是一种具有发展前景的抗肿瘤、抗病毒药物.现将莪术油已取得的研究成果进行整理,为莪术油的进一步深入研究和开发提供参考.根据文献报道,主要从莪术油的提取方法、化学成分、质量控制、药理研究等方面对其进行概述.     

姜黄素药理学研究进展

姜黄素是一种天然酚类抗氧化剂，有广泛的药理作用，如：抗炎、抗肿瘤、抗脂质过氧化及护肝等。本文对姜黄素及其衍生物制剂的质量控制（包括药物的稳定性、药物的提取、制剂的研究）进行了概述，并介绍了姜黄素在治疗肝脏、心脏、肿瘤等疾病中的研究及应用。     

基于化学成分临床利用量的郁金质量评价研究

目的:通过姜黄素的临床利用量对郁金的品质进行评价研究.方法:采用单因素实验法考察郁金药材中姜黄素含量的测定方法,设计正交实验优选郁金中姜黄素的最佳提取工艺,根据最佳提取工艺采用HPLC法测定多批不同产地郁金中姜黄素的含量,从而计算其临床利用量对药材进行质量评价.结果:姜黄素含量测定供试品制备方法为取细粉2 g,加入20 m L甲醇,超声提取30 min;郁金姜黄素最佳提取工艺为药材加10倍量的60%乙醇提取3次,每次2 h.姜黄素的临床利用量与药材的真实含量呈正相关.结论:本研究建立的方法重视临床效果,体现了中医药特色,为郁金及其他中药材质量评价研究提供了一种新的思路.     

HPLC法测定清血脂Ⅰ号胶囊中含姜黄素的量

为建立测定清血脂Ⅰ号胶囊中姜黄素含量的方法,采用高效液相色谱法,以胶囊中主要有效成分姜黄素为控制指标,进行含量测定方法学考察.采用药典推荐方法,可以快速地进行质量控制检查,该方法重复好,简便易行.可作为清血脂Ⅰ号胶囊药材的质量控制方法.     

姜黄素缓释胶束的制备、表征及其抗细胞毒类药物的多药耐药性评价

姜黄素为传统中药姜黄中提取的多酚类化合物,具有多靶点的抗肿瘤活性及确切的抗炎和抗氧化等作用。但姜黄素几乎不溶于水,口服不吸收,且存在严重的肝首过效应,因此系统生物利用度很低,难以充分发挥其抗肿瘤活性。合成了叔丁氧羰基苯丙氨酸封端的甲氧基聚乙二醇-聚己内酯嵌段共聚物,并采用固体分散工艺制备了可注射给药的姜黄素共聚物胶束,结果表明:胶束在体内具有良好的稳定性和缓释效果,能显著减缓姜黄素在体内的代谢速度,从而提高生物利用度;该胶束和阿霉素联用不仅能提高药效,还能有效降低阿霉素的毒性,具有良好的临床应用前景。     

蓬莪术挥发油提取技术的研究及其化学成分分析

采用超临界CO2流体萃取，索氏提取，水蒸汽蒸馏3种提取技术提取蓬莪术挥发油，并用GC－MS联用仪分析其化学成分，实验结果表明：超临界CO2流体萃取法在挥发油得率，有效抗肿瘤组分，工艺流程，有机溶剂残留，挥发油外观及香气等诸多方面均明显优于索氏提取法和水蒸汽蒸馏法，有较高的工业应用价值。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with