RP-HPLC测定维药老鼠瓜中槲皮素的含量

目的：HPLC测定维药老鼠瓜中槲皮素的含量。方法：反相高效液相色谱法,色谱条件：Kromasil C18柱（250mm×4．6mm,5μm）;流动相：甲醇-0.4％磷酸（47：53）;检测波长：370nm。结果：槲皮素在2．0—20μg·mL^-1呈良好的线性关系（r=0．9993）,平均回收率为98．8％（RSD=1．75％,n=6）。老鼠瓜中槲皮素的平均含量为2731μg·g^-1,而且老鼠瓜中槲皮素的含量与产地有较大的关系。结论：该方法简便、准确、快捷,通过本实验为进二步开发利用新疆丰富的药物资源提供了参考依据。     

维药老鼠瓜中白花菜苷的含量测定

老鼠瓜Capparis spinosaL.为白花菜科山柑属植物,又名槌果藤、刺山柑、野西瓜。在我国主要分布在新疆、甘肃和西藏[1]。其味辛苦,性温,具有祛风、散寒、除湿、止痛、调经、消肿的作用,维吾尔医用老鼠瓜治疗风湿性关节炎和痛风。现代药理学研究表明,老鼠瓜水提物具有保肝、降糖     

川东獐牙菜不同部位芒果苷的含量测定研究

目的建立高效液相色谱法测定川东獐牙菜不同部位芒果苷的含量。方法采用Hypersil C18柱(150 mm×4.6mm,5μm),流动相为甲醇-0.04%磷酸溶液在0-15 min内由22∶78到32∶68,流速1.0 ml.min-1,检测波长254 nm,柱温室温,用外标法定量,测定川东獐牙菜中芒果苷的含量。结果芒果苷的线性范围0.27-2.70μg,r=0.999 7,回收率100.90%,RSD为2.19%。结论该方法简便,快速,线性关系良好,可用于川东獐牙菜芒果苷的含量测定。     

甘肃产秦艽不同部位中龙胆苦苷的含量测定

目的:测定甘肃产秦艽不同部位中活性成分龙胆苦苷的含量。方法:采用高效液相色谱法。色谱柱:WatersC₁₈色谱柱;流动相:甲醇-水(3∶7);流速:1.0mL·min^-1;检测波长:254nm。结果:龙胆苦苷在(1.7352 ～17.3520)μg范围内具有良好线性关系,平均回收率为96.20%(RSD=1.5%)。结论:甘肃产秦艽不同部位中龙胆苦苷含量高于或接近《中国药典》标准,有一定的开发利用价值。     

HPLC测定黄牡丹不同部位中芍药苷的含量

目的:建立黄牡丹中芍药苷的含量测定方法并考察黄牡丹不同部位中芍药苷的含量.方法:采用高效液相色谱法,Agilent TC-C18色谱柱(4.6 mm×150 mm,5μm),流动相乙腈-0.1％磷酸溶液(12∶88),检测波长235 nm,流速1.0 mL·min-1,柱温30℃.结果:芍药苷进样量在0.40～4.00μg,与峰面积具有良好的线性关系,回归方程A=1095.3 C+31.608(r=0.999 9),平均回收率100.59％,RSD 1.66％.芍药苷在不同部位中的含量分布为果实＞叶＞栓皮＞皮部＞茎＞木部.结论:本方法简便、快速、准确,重复性好,芍药苷可作为控制黄牡丹药材质量的一个指标成分.     

不同产地虎杖药材中白藜芦醇苷含量的测定

采用高效液相色谱法测定不同产地虎杖中白藜芦醇苷的含量.结果表明,虎杖中白藜芦醇苷含量最高达到4.54%,最低为0.86%,不同产地虎杖的品质有一定差异.     

不同产地虎杖药材中自藜芦醇苷含量的测定

采用高效液相色谱法测定不同产地虎杖中白藜芦醇苷的含量。结果表明，虎杖中白藜芦醇苷含量最高达到4．54％，最低为0．86％，不同产地虎杖的品质有一定差异。     

HPLC测定不同采收途径及不同部位白花丹中白花丹醌的含量

目的:分析不同采收途径及不同部位的白花丹中白花丹醌含量,寻找富集白花丹醌的药用部位和白花丹的最佳采收途径。方法:采用HPLC法测定不同采收途径白花丹和不同部位中白花丹醌的含量:色谱柱为Hypersil ODS(25cm×4.6mm,25μm),流动相为甲醇-水(65∶35),流速为1.0mL/min,检测波长为213nm,柱温30℃。结果:白花丹醌在0.01μg～0.32μg含量范围呈线性关系,Y=18211600X+10434.57758,r=0.99946,RSD=1.28%(n=6);新鲜的白花丹根部、茎部及叶中白花丹醌的含量分别为0.026%、0.006%和0.014%;干燥的白花丹根部、茎部及叶中白花丹醌的含量分别为0.324%、0.082%和0.174%;枯萎的白花丹茎部、叶及穗中白花丹醌的含量分别为0.002%、0.001%和0.003%。结论:干燥组白花丹中白花丹醌含量高于新鲜组和枯萎组,白花丹根部的白花丹醌含量最高,其次是穗,叶、茎。本法简便、准确,灵敏度高,重复性好,可用于控制白花丹药材的质量。     

血清中栀子苷和芍药苷的含量测定

目的:建立中药复方制剂H3指标成分栀子苷、芍药苷在大鼠血清中的测定方法。方法:采用反相高效液相色谱法测定大鼠血清中栀子苷、芍药苷浓度。样品处理采用固相萃取法,流动相为乙腈:磷酸盐缓冲液:水(15:5:85),检测波长:栀子苷240 nm,芍药苷232 nm。结果:在线性范围0.05-10 μg·ml-1内栀子苷、芍药苷峰面积与浓度线性关系良好(r=0.999 1,0.998 8),最低检测浓度50 ng·ml-1。结论:该法操作简便、快捷,特异性强,适用于H3临床前药动学研究。     

HPLC测定维药睡莲花中没食子酸和烟花苷含量

目的建立维药睡莲花中没食子酸和烟花苷含量的高效液相色谱测定方法。方法色谱柱:Wondasil C18(250 mm×4.6 mm,5μm);流动相:A为甲醇,B为0.1%冰乙酸混合水溶液,梯度洗脱;流速:1.0 mL/min;检测波长:270 nm;柱温:30℃。结果没食子酸及烟花苷进样量分别在0.065~0.585μg(r=0.999 1)、0.133~1.197μg(r=0.999 5)范围内与峰面积呈良好的线性关系,平均回收率分别为102.71%、102.08%,RSD分别为1.97%、0.46%。结论本方法操作简单、准确可靠,可用于维药睡莲花中烟花苷和没食子酸含量的测定。     

反相高效液相法测定刺山柑果中腺苷的含量

目的:建立刺山柑果中腺苷含量的测定方法。方法:色谱柱:Polaris(C18-A250mm×4.6mm,5μm,AB17),流动相:甲醇:水(15∶85),检测波长:260nm,流速1.0mL/min,柱温:30℃。结果:回归方程为Y=206997300X 113157.8(r=0.9991n=5),平均回收率为104.6%,RSD=4.51%,腺苷的含量为36.61mg/Kg(RSD=2.89%,n=5)。结论:本法简捷、准确,适用于刺山柑果中腺苷的含量测定。     

Pharmacological Effects of Capparis spinosa L.

Medicinal plants have been known as one of the most important therapeutic agents since ancient times. During the last two decades, much attention has been paid to the health‐promoting effects of edible medicinal plants, because of multiple beneficial effects and negligible adverse effects. Capparis spinosa L. is one of the most common medicinal plants, used widely in different parts of the world to treat numerous human diseases. This paper aims to critically review the available scientific literature regarding the health‐promoting effects of C. spinosa, its traditional uses, cultivation protocols and phytochemical constituents. Recently, a wide range of evidence has shown that this plant possesses different biological effects, including antioxidant, anticancer and antibacterial effects. Phytochemical analysis shows that C. spinosa has high quantities of bioactive constituents, including polyphenolic compounds, which are responsible for its health‐promoting effects, although many of these substances are present in low concentrations and significant changes in their content occur during processing. In addition, there is negligible scientific evidence regarding any adverse effects. Different health promotion activities, as well as tremendous diversity of active constituents, make C. spinosa a good candidate for discovering new drugs. However these findings are still in its infancy and future experimental and clinical studies are needed. Copyright © 2016 John Wiley & Sons, Ltd.     

野西瓜中总黄酮的含量分析

目的对野西瓜中总黄酮含量进行测定,为野西瓜质量评价提供依据.方法芦丁-UV方法进行测定.结果总黄酮在0.00168～0.0672mg/ml范围有良好的线性关系(r=0.9991),加样回收率为99.60%,HSD=3.16%.结论该法样品处理简单、迅速,可以做为野西瓜中总黄酮的含量测定方法,不同来源的野西瓜中总黄酮含量差别较大.     

一测多评法同时测定维药槌果藤中2个黄酮醇苷类成分的含量

目的:采用一测多评法同时测定维药槌果藤中芦丁和山奈酚-3-O-芸香糖苷的含量,并验证该方法的适用性。方法:采用HPLC法,以芦丁为内参物,建立山奈酚-3-O-芸香糖苷的相对校正因子,分别采用一测多评法和外标法对14批维药槌果藤中的2个黄酮醇苷类成分进行测定。结果:14批槌果藤中芦丁和山奈酚-3-O-芸香糖苷的含量可以用一测多评法进行测定,山奈酚-3-O-芸香糖苷含量的计算值与实测值间无显著差异。结论:本研究所建立的一测多评法稳定、准确,可用于槌果藤中2个黄酮醇苷类成分的质量控制。     

薄层层析-紫外光谱法测定刺山柑果中腺苷的含量

目的：建立刺山柑果中腺苷含量的测定方法。方法：刺山柑果经超声提取，硅胶薄层层析分离，用紫外分光光度法于260nm处测定腺苷的吸光度。结果：在1．0-6．0μg／mL的范围内腺苷的浓度与吸光度呈现良好的线性关系（r=0．9995 n=6），平均回收率为96．1％（RSD=1．48％ n=3），腺苷的含量为14．19mg／Kg（RSD=2．8 n=5）。结论：本法简捷、准确，适用于刺山柑果中腺苷的含量测定。     

RP-HPLC法测定刺山苷不同药用部位中芦丁和山萘酚芸香苷含量

目的建立刺山柑不同药用部位中芦丁和山萘酚芸香苷的RP-HPLC含量测定法。方法采用Agilent ZORBAXSB-C18色谱柱（250mm×4．6mm,5μm）,以乙腈-0．1％三氟乙酸（37：63）为流动相,流速为1．0ml·min-1,紫外检测波长为265nm,柱温为30℃,进样量20μl。结果芦丁在12．0-599．5μg·ml^-1之间与峰面积呈良好的线性关系（r2=0．9996）;山萘酚芸香苷在4．8-237．5μg·ml-1之间与峰面积呈良好的线性关系（F2=0．9998）;芦丁和山萘酚芸香苷的平均回收率分别为99．15％（RSD=1．3％）和99．58％（RSD=2．1％）。结论本方法简单、重复性好、专属性强,可为评价刺山柑药材的质量提供科学依据。     

Antiallergic and antihistaminic effect of two extracts of Capparis spinosa L. flowering buds

The antiallergic properties of two lyophilized extracts obtained from Capparis spinosa L. flowering buds (capers) by methanol extraction, carried out at room temperature (CAP-C) or with heating at 60 degrees C (CAP-H), were investigated.The protective effects of CAP-H and CAP-C, orally administered (14.28 mg[sol ]kg), were evaluated against Oleaceae antigen challenge-induced and histamine-induced bronchospasm in anaesthetized guinea-pigs. Furthermore, the histamine skin prick test was performed on humans, applying a gel formulation containing 2% CAP-C (the only extract able to protect against histamine-induced bronchospasm) on the skin for 1 h before histamine application and monitoring the erythema by reflectance spectrophotometry.The CAP-H showed a good protective effect against the bronchospasm induced by antigen challenge in sensitized guinea-pigs; conversely, a significant decrease in the responsiveness to histamine was seen only in CAP-C pretreated animals. Finally, the CAP-C gel formulation possessed a marked inhibitory effect (46.07%) against histamine-induced skin erythema.These two caper extracts displayed marked antiallergic effectiveness; however, the protective effect of CAP-H was very likely due to an indirect mechanism (for example, inhibition of mediator release from mast cells or production of arachidonic acid metabolites); conversely, CAP-C is endowed with direct antihistaminic properties. The different mechanisms of action of CAP-H and CAP-C may be related to a difference in the extraction procedure and, thus, in their qualitative[sol ]quantitative chemical profile.     

Hypolipidemic activity of aqueous extract of Capparis spinosa L. in normal and diabetic rats

The purpose of this study was to examine the effect of single and repeated oral administrations of the aqueous extract of Capparis spinosa L. (CS) at a dose of 20mg/kg on lipid metabolism in normal and streptozotocin-induced diabetic rats. In normal rats, the aqueous extract of CS induced a significant decrease on plasma triglycerides concentrations 1 week (p<0.05) and 2 weeks (p<0.01) after once daily repeated oral administration. A significant decrease of plasma cholesterol levels was also observed 4 days (p<0.05) and 1 week (p<0.05) after repeated oral administration. In diabetic rats, CS treatment caused a significant decrease of plasma triglycerides levels after repeated oral administration. Four days after repeated oral administration of aqueous CS extract, the plasma cholesterol levels were significantly decreased (p<0.05) and still dropped after 2 weeks (p<0.01). On the other hand, the repeated oral administration of CS aqueous extract caused a significant decrease of body weight 4 days after repeated oral treatment in diabetic rats (p<0.05). We conclude that the aqueous extract of CS (20 mg/kg) exhibits a potent lipid lowering activity in both normal and severe hyperglycemic rats after repeated oral administration of CS aqueous extract.     

Antiviral and immunomodulatory effect of a lyophilized extract of Capparis spinosa L. buds

Herpes simplex virus type 1 (HSV-1) and herpes simplex virus type 2 (HSV-2) are common human pathogens that in particular cases can also cause severe problems especially in immunodeficient patients. The present paper reports the antiviral and immunomodulatory properties of a methanolic extract of C. spinosa buds (CAP), rich in flavonoids, including several quercetin and kaempferol glycosides. In particular we have investigated whether the in vitro exposure of human peripheral blood mononuclear cells (PBMCs) to CAP might inhibit the replication of HSV-2 and modulate the induction kinetics of IL-12, TNF-alpha IFN-gamma. Our findings have shown that CAP treatment interferes with HSV-2 replication in PBMCs inhibiting the extracellular virus release upregulating their production of IL-12, IFN-gamma and TNF-alpha. One could speculate that CAP may contribute in improving immune surveillance of PBMCs toward virus infection by up-regulating expression of peculiar proinflammatory cytokines; it should thus be successfully employed for treatment of HSV-2 infections in immunocompromised hosts.     

刺山柑提取物的体外抗脂质过氧化作用

目的:研究刺山柑提取物对正常小鼠脂质过氧化的影响。方法:小鼠肝匀浆与刺山柑提取物共浴后,以自发产生脂质过氧化或者分别以自由基诱导剂CCl4、H2O2和铁离子-抗坏血酸(Fe2+-VitC)激发脂质过氧化作用,以MDA产生量作为脂质过氧化作用指标。结果:刺山柑提取物0.1 mg/ml组可明显降低小鼠肝组织自发性MDA的生成,减轻Fe2+-VitC诱导所致的肝脏脂质过氧化反应;刺山柑提取物0.5 mg/ml组可减轻CCl4、H2O2诱导所致的肝脏脂质过氧化反应。结论 :刺山柑提取物具有良好的抗脂质过氧化作用。