Two New Glucosides from Radix Polygoni multiflori Preparata

2,3,5,4'-tetrahydroxystilbene-2-O-(2'-O-feruloyl)-beta -D-glucopyranoside, 2,3,5,4'-tetra hydroxystilbene-2-O-(2'-O-p-coumaroyl)-beta -D-glucopyranoside were isolated from Radix Polygoni multiflori Preparata. Structures were elucidated by chemical and spectral evidences.

Research progress on synergetic effects of Fuzi(Radix Aconiti Lateralis Preparata)and Tubeimu(Rhizoma Bolbostemmatis)/Gualou(Trichosanthes kirilowii Maxim)

The compatibility of Chinese herbs is the focus and the difficulty in traditional Chinese medicine research,and it has an important guiding role for clinical medicine.Some scholars believe that the Fuzi(Radix Aconiti Lateralis Preparata,FZ)compatibility with Tubeimu(Rhizoma Bolbostemmatis,TBM)/Gualou(Trichosanthes kirilowii Maxim,GL)does not meet the Chinese medicine theory of“eighteen incompatibilities”.However,this combination has been used many times in many clinical medications.This study reviewed the research progress of pharmacological effects of FZ,and FZ compatibility with TBM/GL,in order to correctly understand and apply the“eighteen incompatibilities”drugs,and provide a reference for further exploration of the combined application in clinical treatment.

Optimization of Preparation and Brewing Process of Radix Polygonum Multiflorum Preparata-Herba Taxilli Tea Bag by Orthogonal Test Combined with Comprehensive Weighted Score Analysis

[Objectives]This study aimed to optimize the preparation process of Radix Polygonum Multiflorum Preparata-Herba Taxilli tea bags.[Methods]Taking the comprehensive weighed score of total flavonoid content,soup color,aroma and taste as an indicator,the preparation process of tea bags was optimized using an orthogonal test.[Results]The results of the orthogonal test show that the optimal preparation process for the Radix Polygonum Multiflorum Preparata-Herba Taxilli tea bags are as follows:particle size of 14 meshes,solid to liquid ratio of 1∶40,brewing temperature of 70℃,and brewing time of 10 min.[Conclusions]The optimized preparation process is reasonable and feasible.It is suitable for the production of Radix Polygonum Multiflorum Preparata-Herba Taxilli tea bags.

Optimization of the Ethanol Extraction Method of Monoester Alkaloids from Radix Aconiti Preparata Based on HPLC-MS and Orthogonal Test

[Objectives] This study was conducted to optimize the ethanol extraction technology of monoester alkaloids from Radix Aconiti Preparata. [Methods]On the basis of defined extraction times,ethanol concentration,ethanol times and extraction time were investigated by HPLC-MS combined with orthogonal test to optimize extraction process using the content of monoester alkaloids( the sum of benzoyl neoaconitine,benzoyl hypoaconitine and benzoyl aconitine) as an index.[Results]The optimum ethanol extraction technology was as follows: 75% ethanol,ethanol amount 25 times of the medicinal material,and each extraction for 1. 5 h.[Conclusions] The optimal extraction technology is simple,feasible,stable and reliable. It can provide reference for the industrial production and quality control of monoester alkaloids from Radix Aconiti Preparata.

Comparative study of anti-inflammatory effects of different processed products through the COX-2/PGE2 signaling pathway: based on network pharmacology and molecular docking

Background:Radix Aconiti Lateralis Preparata(Fu-zi)is a traditional Chinese medicinal herb,which has been widely used in the clinic and has potent anti-inflammatory activities.we aimed to explore the mechanisms of extract containing alkaloids from different Fu-zi Processed Products(FPP)in treating inflammation,especially rheumatoid arthritis(RA).Methods:Firstly,using network pharmacology technology,the ingredients,and targets of Fu-zi were obtained by searching and screening,the targets involving RA were acquired,the intersection targets were constructed a"component-target-pathway"network.A comprehensive investigation was conducted on the anti-rheumatoid arthritis mechanisms of 5 FPPs in lipopolysaccharide(LPS)induced RAW264.7 cells,which serve as a model for RA.The production of NO and inflammatory cytokines were measured by ELISA kit.Quantitative Real-time PCR(qRT-PCR)was utilized to measure the mRNA levels.COX-2/PGE2 signaling pathway-associated proteins were determined by western blot.Results:According to a network pharmacological study,16 chemical components and 43 common targets were found in Fu-zi and 6 key targets including PTGS2 were closely related to the mechanism of Fu-zi in treating RA.The in vitro study revealed that the levels of NO,TNF-α,and IL-1βwere substantially decreased by the 5 FPPs.The 5 FPPs significantly suppressed the expression of proteins COX-2,iNOS,and NF-κB,with particularly notable effects observed for PFZ and XFZ.Conclusion:Altogether,these results demonstrated that the 5 PPS containing alkaloids have a good anti-RA-related inflammatory effect,and the mechanism may be related to COX-2/PGE2 signaling pathway,particularly,Fu-zi prepared utilizing a traditional Chinese technique.

Effects of Radix Aconiti Lateralis Preparata and Rhizoma Zingiberis on Energy Metabolism and Expression of the Genes Related to Metabolism in Rats

Objective： To study the influence of Radix aconiti lateralis preparata and Rhizoma zingiberis, two species of Chinese medicinal herbs with hot property, on energy metabolism and gene expression spectrum, and to analyze the possible mechanism of their effects. Methods： Forty-eight specific pathogen free Wistar rats were randomly divided into a Radix aconiti lateralis preparata group, a Rhizoma zingiberis group, and a control group. They were intragastrically treated with concentrated decoction of Radix aconiti lateralis preparata, Rhizoma zingiberis and normal saline respectively for 20 days. Toe temperature （TT）, energy intake （El）, digestible energy （DE）, and metabolizable energy （ME） were measured. The content of adenosine triphosphate （ATP） and energy charge （EC） in hepatic tissue were measured with high performance liquid chromatography （HPLC）. The activity of ATPase and succinate dehydrogenase （SDH） in the liver were detected with chemical colorimetry. The gene expression in the liver was detected with Illumina＇s rat Ref-12 gene array. The differential expression genes were selected, annotated and classified based on Gene Ontology （GO）. Real-time quantitative reverse-transcriptase PCR （Q-RT-PCR） was used to test the accuracy of results. Results： Compared with the control group, the -I-r on the 10^th day after the beginning of administration and ATP in the Radix aconiti lateralis preparata and Rhizoma zingiberis groups increased significantly （P〈0.05）. El/body mass （BM）, DE/BM, ME/BM, the hepatic EC and the activity of Na^＋-K^＋-ATPase, Ca^2＋-Mg^2＋-ATPase and SDH of liver increased significantly only in the Radix aconiti lateralis preparata group （P〈0.05）. There were 592 differential expression genes in the Radix aconiti/ateralis preparata group and 1 159 in the Rhizoma zingiberis group compared with the control group. Among the differential expression genes, genes related to metabolic processes were the most significant based on GO analysis. There were 337 strips of gene differential expression in common in both Radix aconiti lateralis preparata and Rhizoma zingiberis groups compared with the control group. Conclusions： Herbs with hot property such as Radix aconiti lateralis preparata and Rhizoma zingiberis could improve the energy metabolism in rats, through influencing the metabolic process of sugar, lipid, and amino acid. It could also promote the production, storage, and utilization of energy by regulating the gene expression related to metabolism, which may be the main molecular mechanism of warming yang and dispelling cold for the treatment of the cold syndrome according to Chinese medicine theory.

Efficacy of Renshen(Radix Ginseng) plus Fuzi(Radix Aconiti Lateralis Preparata) on myocardial infarction by enhancing autophagy in rats

OBJECTIVE:To elucidate the protective effects of Renshen(Radix Ginseng)and Fuzi(Radix Aconiti Lateralis Preparata)on myocardial infarction(MI)through regulating myocardial autophagy.METHODS:Thirty-one male Sprague-Dawley rats were randomized into five groups(n=6 or 7 for each).After treatment for 3 weeks,electrocardiogram(ECG)and cardiac function were recorded.Hematoxylin and eosin(HE)staining was used to detect pathological changes in the heart.Enzyme-linked immunosorbent assay(ELISA)was used to detect serum B-type brain natriuretic peptide(BNP),cardiac troponin T(c Tn T),tumor necrosis factor-α(TNF-α),and serum inflammatory cytokines.Metabolomic analysis was used to identify differential biomarkers of MI in rats.Immunohistochemistry and western blotting were used to detect BNP,cTnT,TNF-α,LC3B,Beclin-1,p62,and adenosine monophosphate activated protein kinase(AMPK)expression in cardiac tissue.RESULTS:Fuzi(Radix Aconiti Lateralis Preparata)alone or Renshen(Radix Ginseng)plus Fuzi(Radix Aconiti Lateralis Preparata)markedly ameliorated cardiac dysfunction and abnormal ECGs,demonstrated by decreases in the heart weight/body weight ratio,BNP,and c Tn T.Pro-inflammation cytokine interleukin(IL)-1αsignificantly decreased and anti-inflammatory cytokine IL-10 significantly increased in Renshen(Radix Ginseng)single or Renshen(Radix Ginseng)plus Fuzi(Radix Aconiti Lateralis Preparata)groups compared with the control group.HE results suggested that co-treatment produced a greater reduction in cardiomyocyte cross-sectional area than Renshen(Radix Ginseng)or Fuzi(Radix Aconiti Lateralis Preparata)alone.Renshen(Radix Ginseng)plus Fuzi(Radix Aconiti Lateralis Preparata)reversed these changes to different degrees in MI rats.Furthermore,Renshen(Radix Ginseng)plus Fuzi(Radix Aconiti Lateralis Preparata)down-regulated LC3 B,Beclin-1,and AMPK expression in cardiac tissue and upregulated p62 expression.CONCLUSIONS:Renshen(Radix Ginseng)plus Fuzi(Radix Aconiti Lateralis Preparata)may have a greater effect on heart injury induced by MI in rats than Fuzi(Radix Aconiti Lateralis Preparata)treatment alone,and the underlying mechanism may be associated with the regulation of myocardial autophagy and anti-inflammation effects.These results provide fresh insight into the mechanism of co-treatment with Renshen(Radix Ginseng)and Fuzi(Radix Aconiti Lateralis Preparata)for MI.

5-HMF高效液相色谱检测方法的建立及功能糖与不同产地党参、何首乌和熟地中5-HMF含量分析

本试验旨在建立5-羟甲基糠醛(5-hydroxymethylfurfural,5-HMF)的高效液相色谱检测方法,检测不同产地党参、制首乌、熟地黄以及5个不同批次功能糖中5-HMF含量。采用C_(18)(4.6 mm×250.0 mm,5μm)色谱柱分离,流动相为甲醇-水(8∶92),流速为1.0 mL/min,柱温为30℃,进样量为10μL,紫外检测器,检测波长为280 nm。经方法学考察,显示该方法线性关系良好;精密度试验测定峰面积RSD平均值为1.438%;重复性试验显示HPLC重复性良好;稳定性试验峰面积RSD范围为1.338%~7.307%;加标回收率显示良好。中药及功能糖5-HMF含量检测结果显示,党参、制首乌和熟地黄相比,熟地黄中5-HMF含量较高,党参中5-HMF含量较低,其中又以河北产熟地黄中5-HMF含量最高。不同批次功能糖中5-HMF含量无显著性差异,但其含量是河北产熟地黄的90~100倍。通过现代化技术,用功能糖成功复制了中药中的活性成分5-HMF,降低了其生产成本,具有良好的发展前景。

熟地黄治疗绝经后骨质疏松症骨代谢紊乱的“性-效-用”特点探讨

绝经后骨质疏松症是一种以骨吸收-骨形成耦联失衡为基本发病机制的全身性代谢性疾病,属中医“骨痿”范畴。基于中医学理论,骨痿为病,以“筋骨肉病在外,肝脾肾虚在内”为主要病机特点。熟地黄之效在脏表现为补肝脾肾,补血滋阴,益精;在体表现为填骨髓、长肌肉、通利血脉。基于现代研究结果,熟地黄治疗绝经后骨质疏松症的作用是多种有效物质共同作用的结果,其可能通过多环节、多靶点调控骨吸收和骨形成的耦联。本文通过梳理国内外文献,从熟地黄的“性-效-用”特点3个维度,结合中医“五脏一体观理论”的认识,归纳及探讨熟地黄治疗绝经后骨质疏松症骨代谢紊乱的作用机制,旨在贯彻中药现代化研究的中西医结合研究范式,为更好地研究熟地黄治疗绝经后骨质疏松症的作用机制和挖掘其临床药用价值提供参考。

附子及其药对治疗慢性心力衰竭研究进展

慢性心力衰竭(CHF)是多种心血管疾病的终末阶段。中医认为CHF多属本虚标实,病机关键是心肾阳虚。心气虚日久累及心阳,心阳虚贯穿整个病理过程;辨证可分为阳虚血瘀证、阳虚水泛证、心肾阳虚证、阳气虚脱证;治则重在益气温阳。附子为温阳要药,药性刚燥,走而不守,上助心阳以通脉,故在使用温阳法治疗CHF时,多取附子,回阳救逆,常配伍人参、黄芪、干姜、桂枝、甘草等增强补阳功效。本文查阅近年相关文献,重点综述附子及其常用药对治疗CHF的临床应用及机制研究进展,并分析现代医家治疗CHF的临证经验,以期为中医临床治疗CHF提供指导和帮助。

A simple proof of the formal duality of the Kerdock and Preparata codes

The nonlinearity of the Z2-Kerdock code Km+1, where m is an odd integer ≥3, is not at all obvious. By regarding Km+1 as the binary image of the Z4-Kerdock code .,K(m) under the Gray map[1], a simple proof can be achieved (cf. Theorems 8.7 and 8.9 of [2]). Similarly, the formal duality of the Z2-Kerdock code Km+1 and the Z2-Preparata code Pm+1 is even more not at all obvious. A simple proof is given in the present note, by regarding Km+1 as the binary image of .K (m) and using the duality of .K(m) and the Z4-Preparata code . (m) established in [1].

Relationship between cardiotonic activity of Fuzi(Radix Aconiti Lateralis Preparata)and its fingerprint determined by liquid chromatography-mass spectrometry

OBJECTIVE:To investigate the relationship between the cardiotonic activity of Fuzi(Radix Aconiti Lateralis Preparata,RALP)and its fingerprint determined by liquid chromatography-mass spectrometry(LC-MS).METHODS:First,the fingerprints of six processed products of RALP were established by high performance liquid chromatography quadrupole time-of-flight mass spectrometry(HPLC-Q-TOF-MS)followed by analysis of the principal component of the relative peak area of its common peaks.Next,the scores of the first five principal components were used as input for an artificial neural network(ANN).Additionally,the therapeutic effect of RALP was assessed by measuring the hemodynamic indexes of heart failure model rats.Subsequently,fluorescence semi-quantitative polymerase chain reaction and an enzyme-linked immunosorbent assay kit were used to determine the effects of RALP-processed products on the serum levels of noradrenaline(NA),angiotensin-Ⅰ(Ang-Ⅰ),and the expression ofβ-norepinephrine receptor m RNA(β-NRm)in the rat cardiac tissues.P<0.05 was used as the output of the ANN.Finally,a network was constructed to display the relationship between the LC-MS fingerprints and the cardiotonic activity of the RALP-processed products.RESULTS:Several types of RALPs can improve diastolic function,systolic function and heart rate.On the basis of the findings from the principal component analysis(PCA)of 16 common peaks of fingerprints of six RALP-processed products,it was revealed that the first five principal components may include 100%of the information of the original data.As observed from the multilayer perceptron neural network analysis,principal component 4 presented with the strongest effects on serum levels of NA and Ang-Ⅰin rats,while principal component1 exerted the greatest effect onβ-NRm expression in cardiac tissue.CONCLUSION:The key findings obtained from this study indicated that the network constructed by the PCA-ANN may predict pharmacodynamic effects of the main ingredients of Traditional Chinese Medicine(TCM).This method may serve as a new approach to identify the relationship between LC-MS fingerprints and the pharmacodynamic effects of TCM ingredients.

制首乌不同配伍方式对黑色素及酪氨酸酶活性的影响

目的观察制首乌不同配伍方式的水提物对黑色素上调率及酪氨酸酶活性的影响,优选制首乌“乌须发”最佳的配伍方式。方法分别采用蘑菇酪氨酸酶NaOH裂解法及多巴胺速率氧化法研究制首乌不同配伍方式对黑色素生物合成及酪氨酸酶活性的影响。结果制首乌不同配伍方式均具有黑色素上调的作用,整体表现为制首乌-黑芝麻>制首乌-侧柏叶>制首乌-桑椹>制首乌-女贞子,且在一定范围内呈一定的剂量依赖性;制首乌不同配伍方式对酪氨酸酶的激活率均不同,其中制首乌-侧柏叶和制首乌-桑椹对酪氨酸酶具有抑制作用,但是随着浓度的增加,抑制作用逐渐减弱;制首乌-黑芝麻和制首乌-女贞子对酪氨酸酶具有激活作用,制首乌-黑芝麻较制首乌-女贞子激活作用明显。结论制首乌-黑芝麻为制首乌“乌须发”的最佳配伍,制首乌-黑芝麻配伍能够激活酪氨酸酶的活性,上调黑色素含量。

Synergetic effects of aqueous extracts of Fuzi(Radix Aconiti Lateralis Preparata) and Tubeimu(Rhizoma Bolbostemmatis) on MDA-MB-231 and SKBR3 cells

OBJECTIVE: To test the synergistic effects of the aqueous extract of Tubeimu(Rhizoma Bolbostemmatis) and Fuzi(Radix Aconiti Lateralis Preparata) on MDA-MB-231 and SKBR3 breast cancer cells.METHODS: A combined index was created for the effects of Tubeimu(Rhizoma Bolbostemmatis) and Fuzi(Radix Aconiti Lateralis Preparata) extracts. Cell proliferation was performed by trypan blue exclusion and 3-(4,5-dimethylthiazol-2-yl)-5-(3- carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium(MTS) assays. Flow cytometry was used to assess cell cycle distribution and apoptosis. Cell migration was determined by wound-healing and transwell assays. Confocal microscopy was used to detect E-cadherin and actin filaments.RESULTS: The aqueous extract from Tubeimu(Rhizoma Bolbostemmatis) and Fuzi(Radix Aconiti Lateralis Preparata) exerted synergetic effects on the growth of MDA-MB-231 cells and G1 phase arrest.When exposed to extracts at concentrations of 62.5∶62.5 and 62.5∶31.3 μg/m L, the combination index was 0.83 and 0.74, respectively. Interestingly, 62.5∶31.3 μg/m L of combined drugs enhanced the inhibitory effect of Tubeimu(Rhizoma Bolbostemmatis)on the migration of SKBR3 cells and reduced the stimulative effect of Fuzi(Radix Aconiti Lateralis Preparata)(P < 0.01), in which cells showed an increased expression of E-cadherin and reorganization of actin filaments(P < 0.001). 62.5∶62.5 μg/m L extract also synergistically induced apoptosis of MDA-MB-231 cells(P < 0.05 and P < 0.001). Acting as the main active ingredients in the extract, tubeimoside I and acetylbenzoylaconine at 10∶10 μg/m L and 5∶2.5 μg/m L also produced inhibitory effects on the proliferation and migration of cells(P <0.01).CONCLUSION: Tubeimu(Rhizoma Bolbostemmatis)and Fuzi(Radix Aconiti Lateralis Preparata) extracts had synergic effects on MDA-MB-231 and SKBR3 cells.

Weight distribution of Preparata codes over Z_4 and the construction of 3-designs

In this paper,we calculate the number of the codewords(with Hamming weight 7)of each type in the Preparata codes over Z4,then give the parameter sets of 3-designs constructed from the supports of the codewords of each type.Moreover,we prove that the first two families of 3-designs are simple and the third family of the 3-designs has repeated blocks.

红参-制何首乌药对抗衰老作用的HT22细胞和秀丽隐杆线虫模型初步研究

目的初步探讨不同提取工艺下红参-制何首乌药对对神经细胞的抗衰作用,为红参-制何首乌药对在抗衰及抗阿尔茨海默病(AD)作用的应用提供数据支撑。方法分别制备30%和70%乙醇回流提取物,30%和70%乙醇渗漉提取物和水提取物。通过流式细胞术检测不同提取物对HT22细胞中β-半乳糖苷酶含量的影响,初步筛选红参-制何首乌药对神经细胞抗衰效果最佳的提取物,并通过β-半乳糖苷酶染色直观分析该提取物对神经细胞的抗衰效果,用秀丽隐杆线虫寿命试验及瘫痪实验验证其抗衰及抗AD作用。结果红参-制何首乌药对的不同提取方式均对HT22细胞具有显著的抗衰老作用,其中70%乙醇渗漉提取物效果最佳。对其进行多浓度验证,显示具有剂量依赖性的保护作用。浓度为0.2 mg·mL^(-1)的70%乙醇渗漉提取物对秀丽隐杆线虫的寿命有明显的延长作用,浓度为0.008 mg·mL^(-1)的70%乙醇渗漉提取物具有缓解瘫痪的趋势。结论红参-制何首乌药对的70%乙醇渗漉提取物具有明显抗神经细胞衰老的作用,具有抗衰老延长寿命与治疗AD的潜力,应深入研究。

红参-制何首乌药对对神经细胞保护作用的谱效关系

目的建立红参-制何首乌药对不同提取工艺的超高效液相色谱(UHPLC)指纹图谱,并研究其对Aβ_(1-42)诱导HT22细胞模型保护作用的谱效关系。方法制备红参-制何首乌药对30%乙醇回流提取物、30%乙醇渗漉提取物、70%乙醇回流提取物、70%乙醇渗漉提取物和水提取物。采用UHPLC法进行测定并结合《中药色谱指纹图谱相似度评价系统》(2012A版)建立不同工艺提取物的UHPLC指纹图谱,并进行共有峰指认。采用Aβ_(1-42)诱导海马神经元HT22细胞,利用MTT法评估不同工艺提取物对模型的保护,考察红参-制何首乌药对不同提取工艺对神经细胞的保护作用;采用灰色关联度分析法、偏最小二乘法(PLS)分析不同提取工艺UHPLC指纹图谱中共有峰与神经细胞保护的相关性。结果红参-制何首乌药对不同提取工艺有19个共有峰,通过化学对照品指认13个成分。经灰色关联度分析发现,14个共有峰与神经细胞保护的关联度均大于0.6,呈相关性。经PLS分析发现10个成分对神经细胞保护作用的影响较大。结论建立红参-制何首乌药对不同提取工艺UHPLC指纹图谱并指认了19个共有峰成分;大黄素-8-O-β-D-葡萄糖苷、大黄素甲醚-8-O-β-D-葡萄糖苷、大黄素、大黄素甲醚、20(S)-人参皂苷Rg2、人参皂苷Ro、人参皂苷Rd和14、17、18号峰所代表的化学成分可能是神经细胞保护作用的药效物质。

基于网络药理学和体外实验探讨附子-干姜抗心肌缺血再灌注损伤的作用机制

运用网络药理学方法探讨附子-干姜(Aconiti Lateralis Radix Preparata-Zingiberis Rhizoma,AZ)抗心肌缺血再灌注损伤(myocardial ischemia-reperfusion injury,MI/RI)的潜在机制。通过中药系统药理数据库TCMSP筛选AZ的活性成分;Disgenet数据库获得MI/RI靶点;STITCH数据库获得蛋白互作;用DAVID数据库获得GO功能富集与KEGG信号通路并利用Cytoscape 3.8.0进行绘图;细胞实验验证网络药理学预测的结果。结果共获得AZ活性成分16个、治疗靶点171个;作图分析发现AKT1、IL6、TNF为潜在靶点;GO富集分析发现AZ可能通过凋亡、炎症、血管舒张发挥治疗作用;KEGG分析发现AZ可能通过PI3K-AKT信号通路、TNF信号通路、HIF信号通路发挥治疗作用;体外研究发AZ可使缺氧复氧损伤的大鼠血管内皮细胞存活率提高、降低凋亡率、氧化损伤;提高HIF-α、VEGF、eNOS蛋白的表达。附子-干姜激活HIF/VEGF/eNOS信号通路,降低血管内皮细胞氧化损伤、凋亡率发挥抗心肌缺血再灌注损伤的作用。

HPLC法测定不同产地生何首乌和不同炮制工艺制首乌中顺(反)式二苯乙烯苷含量

目的比较不同产地何首乌及不同炮制工艺制何首乌中顺(反)二苯乙烯苷含量的变化,探究其炮制减毒增效的作用机制,为何首乌质量控制及饮片炮制标准研究提供数据参考,以期降低临床用药风险。方法采用高效液相色谱法,测定何首乌和制何首乌中顺(反)式二苯乙烯苷(2,3,5,4′-四羟基二苯乙烯-2-O-β-D-葡萄糖苷)的含量。结果不同批次何首乌和制何首乌中顺(反)式二苯乙烯苷含量范围分别为27.23~358.19μg·g^(-1)和10.30~52.00 mg·g^(-1)。结论本方法操作简单,准确度高,重复性好,可以用于何首乌和制何首乌中顺(反)式二苯乙烯苷含量测定。

基于UPLC-MS分析技术测定不同产区制何首乌饮片中8个化学成分的含量

目的建立UPLC-MS分析技术同时测定不同产地制何首乌饮片中4种蒽醌类(大黄素甲醚、大黄素、大黄素甲醚-8-O-β-D-葡萄糖苷和大黄素-8-O-β-D-葡萄糖苷)及3种鞣质类(没食子酸、儿茶素、表儿茶素)和1种二苯乙烯类(反式二苯乙烯苷)活性成分的含量。方法采用Ultimate UPLC-XB C18(2.1 mm×50 mm,1.7μm)色谱柱,流动相A为0.1%甲酸水溶液,流动相B为乙腈,线性梯度洗脱,流速为0.2 mL·min^(-1);采用电喷雾离子源(ESI)、负离子扫描模式,在多反应监测(MRM)条件下进行定量分析;并用IBM SPSS Statistics 22软件对数据结果进行聚类分析。结果建立的UPLC-MS可以较好地分离8种成分,各成分在相应浓度范围内与峰面积线性关系良好;其定量限和检测限范围分别为0.89~13.00和0.20~4.00 ng·mL^(-1);精密度、重复性、稳定性的RSD值(n=5)均小于5%;加样回收率在99.47%~101.49%,RSD均小于2.5%;聚类分析结果显示12批制何首乌样品分为3类,其中S1、S2、S5、S8~S12归为Ⅰ类,S6、S7归为Ⅱ类,S3和S4归为Ⅲ类;第Ⅲ类样本(广西、广东)中3类成分的平均含量相对较高。结论该方法可靠、准确、快速、重复性好,可用于制何首乌的质量控制与品质相关研究,并为其临床安全用药提供依据。