HPLC法同时测定大黄叶中9种成分

目的建立HPLC法同时检测大黄Rheum officinale叶中没食子酸、番泻苷B、大黄酚-1-O-葡萄糖苷、大黄素-8-O-葡萄糖苷、芦荟大黄素、大黄酸、大黄素、大黄酚和大黄素甲醚9种成分,探索合理开发利用大黄叶的科学依据。方法采用武本C18色谱柱(250 mm×4.6 mm,5μm),甲醇-0.2%乙酸水作为流动相,梯度洗脱,体积流量1 m L/min,柱温30℃,检测波长260 nm。结果没食子酸、番泻苷B、大黄酚-1-O-葡萄糖苷、大黄素-8-O-葡萄糖苷、芦荟大黄素、大黄酸、大黄素、大黄酚和大黄素甲醚分别在20.2~606.0、79.3~2 379.0、10.1~301.8、14.8~443.7、0.7~2.2、0.13~3.9、12.4~372.0、38.8~1 164.0、6.2~185.4 ng与峰面积良好的线性关系(r0.999 6);9种成分的平均回收率为95.76%~98.64%,RSD为1.46%~2.43%。结论该方法简便、准确,分离效果好,所测为大黄叶中化学成分结果真实、可靠,可为其合理开发利用提供参考依据。     

HPLC法同时测定大鼠体内5种大黄蒽醌类化合物

目的建立同时测定芦荟大黄素、大黄酸、大黄素、大黄酚和大黄素甲醚在大鼠血浆、尿液、粪便中含有量的HPLC法。方法分析采用Agilent Eclipse Plus-C18色谱柱(250 mm×4.6 mm,5μm);流动相分别为甲醇-1%甲酸水(78∶22);体积流量1.0 mL/min,检测血浆与尿液,以及甲醇-1%甲酸水(75∶25),体积流量0.8 mL/min,检测粪便;检测波长为254 nm;柱温为30℃。结果芦荟大黄素、大黄酸、大黄素、大黄酚和大黄素甲醚均呈现良好的线性关系,平均回收率(n=6)达到70%以上,RSD值均在12.6%以下。结论该方法可用于体内大黄蒽醌类成分的测定。     

基于主成分分析不同产地大黄13个成分量的比较研究

目的建立大黄Rheum palmatum13个有效成分的HPLC测定方法以及不同产地大黄的质量评价模式。方法采用ZORBAX C18色谱柱(250 mm×4.6 mm,5μm),以甲醇-0.1%磷酸水为流动相,梯度洗脱,体积流量1.0 m L/min,254 nm波长下对没食子酸、表儿茶素、儿茶素、芦荟大黄素苷、大黄酸苷、大黄素苷、大黄酚苷、大黄素甲醚苷、芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚进行测定,对结果进行主成分分析。结果建立了大黄13个成分的线性回归方程,精密度以及重复性的RSD值在5.00%以内,加样回收率在95.54%~103.19%,样品24 h内稳定;27批样品大黄的量存在较大差异,主成分分析得到5个特征根,主成分综合模型值在0.335~1.905,四川绵阳大黄值最高。结论建立了大黄13个主要成分的测定方法。主成分分析为大黄药材质量评价提供一种手段,主成分综合模型值可作为大黄质量的评价依据。     

RP-HPLC-DAD同时测定大黄中9种有效成分的含量

目的: 建立RP-HPLC-DAD同时测定大黄中5 种游离蒽醌类成分(芦荟大黄素、大黄酸、大黄素、大黄酚和大黄素甲醚),2种双蒽酮类成分(番泻苷A、番泻苷B),以及没食子酸、儿茶素合计9种成分含量的方法。方法: 采用Agilent Zorbax SB-C₁₈(4.6 mm×250 mm,5 μm) 色谱柱,流动相0.05%磷酸水溶液-乙腈,梯度洗脱,流速1 mL·min^-1,检测波长280 nm,柱温40 ℃,进样量10 μL。结果: 芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚、番泻苷A、番泻苷B、没食子酸和儿茶素9 种成分分别在4.56~45.6,16.3~163,7.38~73.8,7.44~74.4,1.82~18.2,57.6~576,28.2~282,3.27~32.7,118~1.18×10 mg·L^-1与峰面积呈良好的线性关系 (r≥0.999 5),平均加样回收率为96.4%~101.4%,RSD<3.15%。不同来源的6批大黄样品中9种有效成分的含量差别较大。结论: 该方法简单、重复性良好,准确可靠,可用于大黄药材的快速质量评价。     

HPLC法测定敷胸膏中6种药效成分的含量

目的:建立HPLC法测定敷胸膏中黄芩苷、大黄酚、大黄素、大黄素甲醚、芦荟大黄素、大黄酸的含量。方法:采用高效液相色谱法。色谱条件为Agilent TC-C18(4.6 mm×250 mm,5μm)色谱柱,乙腈—0.05%磷酸水溶液为流动相;检测波长:254 nm。柱温:30℃;流速:1.0 m L/min。结果:黄芩苷、大黄酚、大黄素、大黄素甲醚、芦荟大黄素、大黄酸分别在0.1700~4.2500μg、0.0180~0.4500μg、0.0255~0.6375μg、0.0387~0.9675μg、0.0052~0.1308μg、0.0205~0.5125μg范围内线性关系良好(r分别为0.9998、0.9999、0.9999、0.9999、0.9997、0.9998);平均加样回收率分别为97.57%、98.29%、98.08%、98.01%、97.78%、97.44%;RSD分别为2.01%、1.37%、1.86%、1.63%、1.35%、1.53%。结论:该方法可用于测定黄芩苷、大黄酚、大黄素、大黄素甲醚、芦荟大黄素、大黄酸的含量,方法操作简便、准确、重复性好,为复方质量标准评价提供了依据。     

HPLC法同时测定舒血通合剂中芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚的含量

目的:建立血舒通中芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚的含量测定方法。方法:采用Phenomenex-C18(5μm,4.6mm×250mm)柱,以甲醇(A)-0.1%磷酸溶液(B)为流动相(75:25),流速:1.0mL.min-1;柱温:30℃;检测波长254nm。结果:芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚线性范围分别为1.705～34.104、3.220～64.400、2.180～43.600、1.771～35.422、0.459～9.182μg.mL-1,与峰面积线性关系良好,平均回收率分别为100.32%、101.29%、100.77%、99.84%、100.02%,RSD分别为2.07%、2.01%、2.25%、1.75%、2.47%。结论:该方法可作为舒血通中芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚含量测定的一种准确、灵敏、可行的方法。     

市售大黄饮片质量评价

目的:考察市售大黄饮片质量。方法:收集25个厂家市售大黄三种饮片60个批次样品,采用薄层色谱法进行土大黄苷检查,高效液相色谱法测定番泻苷A、番泻苷B、芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚的含量。结果:目前市售大黄饮片质量令人担忧,生大黄、酒大黄、熟大黄饮片的土大黄苷检出率分别为50%、47%、41%。结论:对大黄饮片质量标准的制定迫在眉睫。     

番泻中番泻苷及蒽醌类的含量及自然干燥后的变化

对不同地区栽培的番泻（ Cassia angustifolia）小叶、叶轴及茎等部位以及采集后不同时间番泻苷（Scnnoside） A （SA） ;及 B （SB）、大黄酸、芦荟大黄素、大黄酚和大黄素的含量进行测定，探讨其特征差异以及加热后SA及SB的含量变化。     

HPLC法测定消炎止痛洗剂中芦荟大黄素、大黄酸、大黄素、大黄酚及大黄素甲醚的含量

目的:建立高效液相色谱(HPLC)法测定消炎止痛洗剂中芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚含量的方法。方法:采用HPLC法对其进行含量测定,色谱柱为A lltim a C18(250 mm×4.6 mm,5μm),以甲醇0.1%磷酸(85∶15)为流动相,流速1.0 mL/m in,检测波长254 nm,柱温30℃。结果:芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚进样量分别在0.020~0.406μg、0.016~0.318μg、0.016 2~0.323 0μg、0.016 4~0.328 0μg、0.008~0.160μg范围内,进样量与峰面积积分值呈良好的线性关系,相关系数均为0.999 9,平均回收率分别为100.34%、99.57%、99.75%、97.24%、98.50%。结论:该方法专属性强,重现性好,可作为消炎止痛洗剂的控制指标之一。     

HPLC同时测定新健胃包芯片中5种蒽醌类成分的含量

目的:建立HPLC法测定新健胃包芯片中5种蒽醌类成分的含量。方法:色谱柱:Diamonsil C8柱,流动相:甲醇(A)-0.3%磷酸(B)梯度洗脱,柱温:25℃,流速:1.0mL·min-1,检测波长:430nm。结果:芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚平均回收率(n=9)分别为99.5%,97.7%,105.4%,100.1%,106.1%,RSD值分别为1.15%,1.76%,1.79%,1.74%,1.93%;芦荟大黄素、大黄酸、大黄素、大黄酚、大黄素甲醚分别在进样量为0.041～0.205、0.041～0.202、0.049～0.245、0.097～0.484、0.042～0.212μg与峰面积呈良好线性关系。结论:该方法简便、灵敏、结果准确可靠,适用于该制剂中蒽醌类成分的质量控制。     

微波消解-电感耦合等离子体质谱法测定脉络宁注射液中25种矿物质元素

目的建立微波消解-电感耦合等离子体质谱(ICP-MS)直接稀释测定脉络宁注射液中25种矿物质元素(Mg、Ca、Fe、Cu、Zn、Mn、Al、B、Ba、Co、Cr、K、Li、Mo、Na、Ni、P、Pb、Sr、Th、Ti、V、As、Cd和Hg)的方法。方法分别对微波消解条件和测试条件进行考察;样品经微波消解后,采用电感耦合质谱仪测定25种矿物质元素,并对测定方法学进行考察。结果确定最佳消解条件为3步缓慢升温:400 W 80℃升温10 min,保留5 min;600 W 120℃升温10 min,保留5 min;900 W 200℃升温20 min,保留20 min;25种矿物质元素在各自的线性范围内线性关系良好,r≥0.999 6,精密度、稳定性和重复性试验的RSD均符合定量分析要求;加标回收率为94.7%~106.1%,RSD在0.34%~2.79%。脉络宁注射液中检测出Mg、Ca、Fe、Cu、Zn、Mn、Al、B、Ba、Co、Cr、K、Li、Mo、Na、Ni、P、Pb、Sr、Th、Ti、V,未检出As、Cd和Hg。结论该方法简便、迅速、准确,适用于脉络宁注射液中25种矿物质元素的同时测定。     

Die Lateralität und Lateralitätsinstabilität in der Diagnostik und Therapie

The disturbance and instability of laterality are obstacles to diagnostics and therapy. Correction prior to starting therapy is required. They also predispose toward defined health problems and unspecific diseases. Numerous research activities provide evidence of the relevance of undisturbed laterality in diagnostics and therapy. Techniques of testing and therapeutic corrections will allow for optimized therapy success.     

Journal of Acupuncture and Tuina Science Instructions for Authors

The Journal of Acupuncture and Tuina Science, a journal with an international scope （IS SN 1672-3597, CN 31-1908/R, Bimonthly）, is embodied by ＇Springer Verlag＇ Database, Index Copernicus （IC） and Chinese Scientific and Technical Paper and Citations Data （CSTPCD）. You can search full text on http：//www, springerlink, com/content/1672 -3597.     

Yerba Mate or Paraguay Tea

正Beverages based on Ilex paraguariensis A.St.-Hil.are used in the south Brazil and other Latin American countries located at the so-called southern cone.It is known as chimarro or mate in south and southeast Brazil,tererêin     

Ethnopharmacologic study of chinese rhubarb

This paper deals with an interdisciplinary study covering historic, botanical, phytochemical, pharmacological and clinical aspects of rhubarb and related species, to lay stress on the correlation between plant phylogeny, chemical constituents and purgative activity.

It was found that the official rhubarbs were exclusively restricted in the Sect. Palmata e.g. Rheum palmatum R. palmatum var. tanguticum R. officinale; the following criteria may serve as their standard, viz., the presence of sennoside derivatives and rhein, the occurrence of the reduced form of rhein and aloe-emodin, the leaves with any kind of palmate incision. Comprehensive multivariate analyses showed that there is a very close relationship between the leaf incision, existence of sennosides or rhein and purgative activity.     

Wirksamkeit der Akupunktur bei der Therapie von idiopathischen Schmeckstörungen: Eine randomisierte Placebo-kontrollierte Studie

Background

At present, the state-of-the-art medication in treating idiopathic taste disorder (gustatory dysfunction) is zinc. If zinc medication was unsuccessful, not tolerated or if it is contraindicated the persons affected can hardly be helped.

Objectives

In a randomized placebo-controlled clinical trial an attempt was made to determine the efficacy of acupuncture.

Methods

The treatment group was treated with acupuncture needles, the placebo group with an inactive acupuncture-laser. Endpoints of the study were changes in the taste test, the quality of life and the severity of symptoms of depression (BDI) as well as mood changes (ZMS). Satisfaction with the success of the respective therapy was also evaluated. Data were collected before and after therapy and again for the treatment group 10 weeks after completion of the treatment period.

Findings

Treatment with real acupuncture showed a significant improvement in gustatory function as well as a significant improvement in psychological symptoms. Greater satisfaction with the treatment results was evident in the treatment group. The treatment results of acupuncture remained stable over a period of ten weeks after completion of the treatment.

Conclusion

Acupuncture was effective in the therapy of idiopathic taste disorders and therefore it is an effective alternative when zinc medication is not tolerated or unsuccessful. But it is also suitable as a therapy of first choice. Acupuncture can be considered as an extension of the therapeutic spectrum in the difficult treatment of taste disorders.     

Veränderungen der Herzratenvariabilität (HRV) während Low Level Lasernadelakupunktur: Placebokontrollierte Studie an 19 herzgesunden Probanden

Background

Experimental and clinical studies postulate a neurobiological mechanism of acupuncture by modulating central pain systems, neurohormones and -transmitters. It seems to be quite likely that the autonomic nervous system (ANS) plays an important mediating role in this neuromodulation.

Aim

In measuring heart rate variability (HRV), as a non-invasive approach to the ANS-function, the object of this study was to monitor probable acupuncture-induced changes of autonomic balance. The innovative technology of laser-needle acupuncture offers for the first time a stimulation method which fulfils the demands on a placebo-controlled acupuncture trial not requiring controversial sham acupuncture.

Method

19 healthy voluntary subjects underwent 3 treatments in randomized sequence, consisting of placebo-, 1-point- (PC 6) and simultaneous 3-point- (PC 6, LR 3, SI 3) laser-needle-stimulation over 20 minutes. Before, during and after placebo-/verum laser-needle acupuncture, HRV-data for normalized HF(high frequency)- and LF(low frequency)-Power (nHF, nLF) and their quotient nLF/nHF obtained by power spectrum analysis (FFT), were measured and analyzed statistically at 5 different time points (ANOVA repeated measures, p < 0,05).

Results

During both verum applications, the 1-point- (PC 6) as well as the simultaneous 3-point- (PC 6, LR 3, SI 3) laser-needle stimulation, significant changes of the ANS-activity were found in comparison to the placebo application. The most significant modification of HRV was an increase of nHF (p < 0,05 (PC 6), p < 0,0001 (PC 6, LR 3, SI 3)) as an expression of growing vagal activity during acupuncture.

Conclusion

Laser-needle acupuncture causes in 1-point-stimulation (PC 6) as well as in simultaneous 3-point-stimulation (PC 6, LR 3, SI 3) significant changes in HRV in comparison to placebo application. HRV-monitoring seems to be a suitable approach in exploration of acupuncture-induced changes of ANS and could possibly be established in combination with laser needle acupuncture as a standard for further scientific and clinical acupuncture investigations which are greatly needed.     

瑞香科五属植物中酚性聚合物的结构特征、分布及药理活性研究进展

瑞香科植物广泛分布于世界热带和温带地区,其中多种植物可供药用。在对该科植物的研究中发现,黄酮类、木脂素和香豆素等酚性化合物的低聚体为其重要的特征性成分,药理活性主要表现在抗肿瘤、抗炎、抗氧化、抗菌和抗病毒等方面。对已发现的酚性聚合体的化学结构、植物来源及药理活性进行综述,为瑞香科植物今后的研究和开发利用提供参考。     

HPLC法同时测定沉香化滞丸中11种成分

目的采用HPLC梯度洗脱法同时测定沉香化滞丸中沉香四醇、柚皮苷、橙皮苷、新橙皮苷、和厚朴酚、大黄素、厚朴酚、木香烃内酯、去氢木香内酯、大黄酚、大黄素甲醚11种成分。方法采用Thermo Syncronis C18色谱柱(250 mm×4.6 mm,5μm),流动相为水-乙腈,梯度洗脱:0～10 min,20%乙腈;10～20 min,20%～40%乙腈;20～24 min,40%乙腈;24～26 min,40%～52%乙腈;26～30 min,52%乙腈;30～31 min,52%～90%乙腈;31～35 min,90%乙腈;35～40 min,90%～100%乙腈;40～43min,100%乙腈;43～45min,100%～20%乙腈;检测波长215nm,体积流量1.0m L/min,柱温30℃,进样量20μL。结果各成分在43 min内分离良好,沉香四醇、柚皮苷、橙皮苷、新橙皮苷、和厚朴酚、大黄素、厚朴酚、木香烃内酯、去氢木香内酯、大黄酚、大黄素甲醚的线性范围分别为1.4～13.6、10.0～200.0、31.5～315.0、1.0～120.1、1.8～50.6、0.93～10.1、1.8～30.0、0.2～40.3、1.8～18.1、1.7～25.0、0.45～10.70μg/mL;样品中各成分的平均回收率均在98.90%～100.87%;11种成分精密度RSD在0.55%～1.54%;供试品溶液在30 h内稳定性良好,RSD在0.75%～1.94%;重复性RSD在0.39%～1.73%。6批次样品中沉香四醇、柚皮苷、橙皮苷、新橙皮苷、和厚朴酚、大黄素、厚朴酚、木香烃内酯、去氢木香内酯、大黄酚、大黄素甲醚质量分数分别为92.0～201.0、511.5～9 033.0、5 475.0～12 635.5、54.5～5 095.5、192.0～2 137.5、117.0～391.5、106.5～1 281.5、13.0～136.5、93.5～199.0、177.0～1 207.0、33.5～251.5μg/g。结论本方法准确、快速、简便,重复性好,精密度高,适用于沉香化滞丸中多种活性成分的定量分析。