Preparative separation and purification of deoxyschizandrin from Schisandrae Sphenantherae Fructus by high-speed counter-current chromatography

A high-speed counter-current chromatography(HSCCC)method was successfully developed for the preparative separation and purification of deoxyschizandrin from Schisandrae Sphenantherae Fructus in one step.The purity of deoxyschizandrin was 98.5%,and the structure was identified by MS,UV and NMR.This method was simple,fast,convenient and appropriate to prepare pure compound as reference substances for related research on Schisandrae Sphenantherae Fructus.

Schisandrae Fructus oil-induced elevation in serum triglyceride and lipoprotein concentrations associated with physiologic hepatomegaly in mice

Objective:To investigate hypertriglyceridemia and hepatomegaly caused by Schisandrae Sphenantherae Fructus(FSS)and Schisandra chinensis Fructus(FSC)oils in mice.Methods:Mice were orally administered a single dose of SchisandraeFructusoils.Serumandhepatictriglyceride(TG),triglyceridetransferprotein(TTP),apolipoproteinB48(Apo B48),very-low-densitylipoprotein(VLDL),hepatocytegrowth factor(HGF),alanine aminotransfease(ALT)and liver index were measured at 6-120 h post-dosing.Results:FSS and FSC oil caused time and dose-dependent increases in serum and hepatic TG levels,with maximum increases in the liver(by 297%and 340%)at 12 h post-dosing and serum(244%and 439%)at 24-h post-dosing,respectively.Schisandrae Fructus oil treatments also elevated the levels of serum TTP by 51%and63%,Apo B48 by 152%and 425%,and VLDL by 67%and 38%in mice,respectively.FSS and FSC oil treatments also increased liver mass by 53%and 55%and HGF by 106%and 174%,but lowered serum ALT activity by 38%and 22%,respectively.Fenofibrate pre/co-treatment attenuated the FSS and FSC oil-induced elevation in serum TG levels by 41%and 49%at 48 h post-dosing,respectively,but increased hepatic TG contents(by 38%and 33%,respectively)at 12 h post-dosing.Conclusions:Our findings provide evidence to support the establishment of a novel mouse model of hypertriglyceridemia by oral administration of FSS oil(mainly increasing endogenous TG)and FSC oil(mainly elevating exogenous TG).

Pharmacological effects of Schisandra Chinensis Fructus polysaccharide on intestinal protection

Schisandra Chinensis Fructus(SCF)is the fruit of Schisandra chinensis(Turcz.)Baill.,a perennial vine.It was first recorded in Shen Nong′s herbal classic and has a long application history.Studies have shown that SCF has anti-inflammatory,protective liver,antioxidant,antibacterial and other pharmacological effects.Ancient prescriptions are commonly used in the treatment of chronic diarrhea and other intestinal diseases and diabetes.Modern clinical pharmacology features of SCF polysaccharide(SCFP)in diabetes,liver diseases,enteritis and other aspects have achieved excellent results.Gut is an important digestive organ of human body,but intestinal diseases are varied,including Crohn′s disease,ulcerative colitis,intestinal flora imbalance,etc..It is a chronic and non-specific inflammatory disease.The disease is persisted for a long time and the incidence rate is expected to rise.Most of the symptoms are recurrent diarrhea,bloody stool and abdominal pain.It is considered by the World Health Organization as a refractory disease.At present,there is little possibility of complete cure,which is closely related to complex environmental factors,eating habits and heredity.In recent years,clinical studies have found that SCFP has a variety of pharmacological effects on intestinal protection.①Reduce inflammatory factors:intestinal mucositis is a common adverse reaction in patients with chemotherapy.The development of mucositis is related to pro-inflammatory factors such as tumor necrosis factor-α(TNF-α),interleukin-6(IL-6),IL^(-1)β,Interferon-γ(IFN-γ).SCFP can significantly reduce IL-6 TNF-α,IL^(-1)β,and IL-8,as well as the accumulation of T cells in the process of resisting apoptosis,reduce the inflammatory reaction and protect the damage to villi and crypts,improve the symptoms of small intestinal mucositis caused by weight loss and diarrhea.②Promote immunoglobulin A secretion:intestinal mucosal immunity is the first line of defense of the body′s immune system.Its main antibody is secretory immunoglobulin A,which can destroy and phagocytize microorganisms,bacteria and viruses.SCFP can improve intestinal immunity by increasing the number and activity of T lymphocytes,promoting the secretion of secretory immunoglobulin A,and affecting the activity of a variety of cytokines.③Regulation of intestinal flora:the flora in the intestine has the functions of auxiliary nutrient absorption,biological antagonism and immune regulation,and can form a natural barrier for the host's intestine.When the human intestinal flora is disordered,probiotics will be greatly reduced,harmful bacteria will proliferate and destroy the intestinal environment.Under these conditions,the intake of SCFP significantly increased the number of beneficial bacteria such as bifidobacteria and lactobacillus,and significantly decreased the number of conditional pathogens such as enterococcus and escherichia coli,indicating that SCFP can indeed regulate the intestinal disorder caused by lincomycin hydrochloride to a certain extent. This may be because beneficial bacteria in the intestine metabolize polysaccharides produce short chain fatty acids such as lactic acid and acetic acid, which reduces the pH value in the intestine and inhibits the growth of enterococcus and Escherichia coli. In conclusion, SCFP can treat and protect intestinal diseases to a certain extent, which provides a favorable basis for the treatment of intestinal diseases.

基于网络药理学探析五味子防治稽留流产的机制及验证

目的:基于网络药理学方法分析五味子防治稽留流产的潜在作用机制,并通过实验进行验证。方法:运用系统药理学方法查找并从中药系统药理学数据库和分析平台(Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform,TCMSP,https://old.tcmsp-e.com/tcmsp.php)筛选五味子的活性成分及靶点,查找稽留流产相关基因,确定五味子防治稽留流产的靶点。利用Cytoscape构建“药物成分-靶点”网络,筛选关键化合物。利用String建立蛋白质-蛋白质相互作用(protein-protein interaction,PPI)网络,并通过Cytoscape-CytoNCA拓扑分析筛选核心靶点。通过对靶基因进行基因本体(gene ontology,GO)和京都基因与基因组百科全书(kyoto encyclopedia of genes and genomes,KEGG)分析,以预测其可能的信号通路及机制。最后借助人绒毛膜外滋养层细胞系(HTR-8/SVneo)利用实时荧光定量聚合酶链反应(real-time fluorescence quantitative polymerase chain reaction,qRT-PCR)检测和蛋白质印迹(Western blotting)检测进行机制验证。结果:从TCMSP数据库中鉴定了7种五味子活性成分。PPI网络表明雄激素受体(androgen receptor,AR)、雌激素受体(estrogen receptor,ER)、环氧合酶-2(cyclooxygenase-2,COX-2)、核受体辅激活因子2(nuclear receptor coactivator 2,NCOA2)和乙酰胆碱酯酶(acetylcholine esterase,ACHE)可能是五味子防治稽留流产的核心作用靶点。GO富集分析获得44个细胞生物学过程,KEGG途径富集分析获得2个相关信号通路,主要包括甲状腺激素信号通路和雌激素信号通路;在利用细胞模型验证机制过程中发现,二羟环氧苯并芘[benzo(a)pyren-7,8-dihydrodiol-9,10-epoxide,BPDE]染毒后的细胞中AR、ER和COX-2的蛋白质和(或)mRNA水平高于正常细胞,而先使用五味子乙素(Schisandrin B,Sch B)预处理后再染毒BPDE的细胞中AR、ER和COX-2的蛋白质和(或)mRNA水平均较未用Sch B预处理的细胞降低,而NCOA2和ACHE的蛋白质和(或)mRNA水平变化不明显。结论:五味子可通过抗炎和调节AR、ER发挥防治稽留流产的作用,这一保护作用可能是通过雌激素信号通路来实现的。

HPLC法测定五味子颗粒中7种木脂素成分的含量

建立了同时测定五味子颗粒中7种木脂素成分含量的高效液相色谱(HPLC)法。采用Poroshell 120 SB-C18色谱柱(150 mm×4.6 mm,2.7μm)进行分离,四氢呋喃水-乙腈梯度洗脱,流速为0.6 mL/min,柱温为30℃,检测波长为220 nm,进样量为10μL。结果表明:该方法对五味子醇甲、五味子醇乙、五味子酯甲、五味子酯乙、五味子甲素、五味子乙素和五味子丙素的检测下限(LOD)分别为0.017、0.041、0.156、0.165、0.136、0.166和0.113μg/mL,线性关系良好,相关系数(r)均大于0.9999,平均加样回收率为98.1%~100.9%,相对标准偏差(RSD)均小于3.0%。因此,该方法重复性好、灵敏度高,所得含量关系可对五味子颗粒进行质量控制,特别是可为预防南五味子掺伪提供参考,也为其他含五味子制剂的质量标准修订奠定了基础。

南五味子药材UPLC指纹图谱及一测多评法研究

建立南五味子药材超高效液相色谱(UPLC)指纹图谱和6种木脂素类成分一测多评法(QAMS),为南五味子药材质量标准提高提供参考。采用UPLC法建立南五味子药材指纹图谱,运用聚类分析(HCA)和正交偏最小二乘法-判别分析(OPLS-DA)对指纹图谱进行分析;以五味子酯甲为内参物,建立五味子酯丙、五味子酯乙、安五脂素、五味子甲素和五味子酯丁的一测多评法,并与外标法(ESM)测定结果对比,判断方法的准确性。14批南五味子药材指纹图谱确定了15个共有峰,通过对照品比对指认了其中7个成分,分别为原儿茶酸、五味子酯丙、五味子酯甲、五味子酯乙、安五脂素、五味子甲素、五味子酯丁,其指纹图谱相似度均在0.95以上;通过聚类分析(HCA)和正交偏最小二乘法-判别式分析(OPLS-DA)可以将南五味子药材分为4类,峰1(原儿茶酸)、峰2、峰4、峰6、峰7(五味子酯乙)、峰8、峰9、峰12、峰15共9个成分是导致产地差异性的主要标志物。一测多评法与外标法测定的五味子酯丙、五味子酯乙、安五脂素、五味子甲素和五味子酯丁含量结果无显著差异。所建立的方法简便、可靠,为南五味子药材质量评价提供参考。

多成分含量测定结合抗氧化活性的化学计量学分析筛选五味子标准汤剂质量标志物的研究

目的探究五味子标准汤剂抗氧化活性的质量标志物。方法采用基于一测多评法(QAMS)的超高效液相色谱法(UPLC)结合化学计量学评价15批五味子标准汤剂的质量;采用DPPH法和ABTS法测定15批样品的抗氧化活性,并借助灰色关联度(GRA)和偏最小二乘回归法(PLSR)分析8种成分含量与抗氧化活性的关联。采用分子对接技术探讨候选质量标志物与抗氧化核心靶点的结合性,同时对单体的体外抗氧化活性进行实验验证。结果QAMS法与外标法(ESM)的含量结果差异不显著(P>0.05),并推测原儿茶酸、五味子醇乙、五味子酯乙、五味子乙素为五味子标准汤剂的质量差异成分。根据GRA和PLSR结果,上述4个质量差异成分可作为抗氧化能力的备选标志物。分子对接结果显示4个候选质量标志物与抗氧化相关靶点具有良好的亲和力。研究认为五味子标准汤剂的抗氧化作用可能是多种成分综合作用的结果,其中,单体成分验证结果显示原儿茶酸具有明显的抗氧化活性并呈现剂量依赖关系,最符合作为质量标志物的特征,因而可能作为五味子标准汤剂抗氧化的质量标志物。结论基于UPLC含量测定法和体外抗氧化实验,预测了五味子标准汤剂中的潜在抗氧化活性物质,也为五味子其它相关制剂的质量评价提供合理依据。

Extract of Fructus Schisandrae chinensis Inhibits Neuroinflammation Mediator Production from Microglia via NF-κB and MAPK Pathways

Objective: To investigate the anti-neuroinflammation effect of extract of Fructus Schisandrae chinensis(EFSC) on lipopolysaccharide(LPS)-induced BV-2 cells and the possible involved mechanisms. Methods: Primary cortical neurons were isolated from embryonic(E17-18) cortices of Institute of Cancer Research(ICR) mouse fetuses. Primary microglia and astroglia were isolated from the frontal cortices of newborn ICR mouse. Different cells were cultured in specific culture medium. Cells were divided into 5 groups: control group, LPS group(treated with 1 μg/mL LPS only) and EFSC groups(treated with 1 μg/mL LPS and 100, 200 or 400 mg/mL EFSC, respectively). The effect of EFSC on cells viability was tested by methylthiazolyldiphenyltetrazolium bromide(MTT) colorimetric assay. EFSC-mediated inhibition of LPS-induced production of pro-inflammatory mediators, such as nitrite oxide(NO) and interleukin-6(IL-6) were quantified and neuron-protection effect against microglia-mediated inflammation injury was tested by hoechst 33258 apoptosis assay and crystal violet staining assay. The expression of pro-inflammatory marker proteins was evaluated by Western blot analysis or immunofluorescence. Results: EFSC(200 and 400 mg/mL) reduced NO, IL-6, inducible nitric oxide synthase(iN OS) and cyclooxygenase 2(COX-2) expression in LPS-induced BV-2 cel s(P<0.01 or P<0.05). EFSC(200 and 400 mg/mL) reduced the expression of NO in LPS-induced primary microglia and astroglia(P<0.01). In addition, EFSC al eviated cel apoptosis and inflammation injury in neurons exposed to microglia-conditioned medium(P<0.01). The mechanistic studies indicated EFSC could suppress nuclear factor(NF)-κB phosphorylation and its nuclear translocation(P<0.01). The anti-inflammatory effect of EFSC occurred through suppressed activation of mitogen-activated protein kinase(MAPK) pathway(P<0.01 or P<0.05). Conclusion: EFSC acted as an anti-inflammatory agent in LPS-induced glia cel s. These effects might be realized through blocking of NF-κB activity and inhibition of MAPK signaling pathways.

TLC Identification of Schisandra Chinensis Liquid Extract and Antler Essence in Qianglinaoqingsu Tablets

[Objectives]To study the quality standard of Chinese drug in compound Qianglinaogingsu Tablets(Fructus Schisandrae Chinensis and Coru Cervi Pantotrichum).[Methods]The thin layer chromatography(TLC)differentiation method was established for Fructus Schisandrae Chinensis and Cornu Cervi Pantotrichum.[Results]TLC spots developed were fairly clear,and the blank test showed no interference.[Conclusions]The method is fast,simple and can be used for quality control of Qianglinaoqingsu Tablets.

基于指纹图谱对五味子不同炮制品差异性研究

目的 分析五味子及不同炮制品炮制后化学成分差异,为五味子不同炮制品的整体质量控制提供依据。方法 建立生五味子、醋五味子、酒五味子指纹图谱,进行相似度评价,同时进行主成分分析(PCA分析)及正交偏最小二乘法判别分析(OPLS-DA分析),结合网络药理学分析探讨差异成分对应的靶点和通路。结果 建立的指纹图谱中成功指认出21个共有峰,其中4个峰分别被指认为五味子醇甲、五味子酯甲、五味子甲素和五味子乙素;相似度结果显示,五味子不同炮制品指纹图谱与各自对照图谱的相似度在0.907~0.999。PCA和OPLS-DA结果表明,五味子不同炮制方法对五味子活性成分的含量变化有一定的影响。网络药理学分析表明,指认出的色谱峰与五味子的主要药理作用密切相关。结论 所建立的指纹图谱方法精密度、重复性、稳定性良好,结合多元统计方法和网络药理学分析,为五味子及其炮制品质量标准评价提供了科学依据。

GEO芯片分析联合网络药理学探讨五味子-枸杞子保护放射性肝损伤的机制研究

利用转录组学、网络药理学和分子对接的技术预测五味子-枸杞子保护放射性肝损伤的活性成分、作用靶点及作用机制。通过中药系统药理学数据库与分析平台(TCMSP)筛选出五味子-枸杞子主要活性成分,从五味子中筛选出14个活性成分,枸杞子中筛选出25个活性成分,核心成分主要为槲皮素、黄豆黄素和去氧紫草素;通过GeneCards、在线人类孟德尔遗传数据库获得辐射损伤的靶点基因,利用UniProt对所获得的基因进行校正,共同关键靶点共66个,利用Cytoscape 3.8.0软件构建药物-活性成分-关键靶点-放射性肝损伤调控网络,将活性成分与疾病共同靶点上传至String数据库,构建药物靶蛋白-放射性肝损伤蛋白相互作用(PPI)网络,根据度值筛选关键核心靶点为CASP3、EGFR、ESR1;对关键靶点进行功能富集分析及通路富集分析,五味子-枸杞子活性成分主要参与化学致癌-受体激活、脂质与动脉粥样硬、PI3K-Akt、MAPK、凋亡等信号通路;分子对接结果提示3个活性成分与靶蛋白结合能力较强。本研究初步发现五味子-枸杞子可能通过槲皮素、黄豆黄素和去氧紫草素调节化学致癌-受体激活、脂质与动脉粥样硬、PI3K-Akt、MAPK、凋亡等多个信号通路发挥保护放射性肝损伤的作用。

五味子药材在保健食品中的应用

五味子作为东北传统道地药材,其不仅用于临床疾病治疗,也广泛用于日常保健。近年来,以五味子为主的保健食品不胜枚举,其主要具有改善睡眠、修复肝损伤、提高免疫力、降血糖等功效,但五味子保健食品还有待进一步深入挖掘。在国家市场监督管理总局特殊食品安全监督管理司平台上以“五味子”“五味子提取物”为关键词进行检索,基于五味子药材的传统功效和主要化学成分,结合现已通过审批的含五味子保健食品的功效和剂型,阐述五味子药材应用于保健食品的合规性、安全性及功效性,旨在为以五味子为原料的保健食品申报注册、功效研究等提供思路和参考。

基于科学知识图谱的五味子研究进展与前沿分析

目的通过科学知识图谱分析五味子的研究热点与前沿方向。方法检索1992年1月1日-2022年8月31日中国知网(CNKI)及Web of Science发表的五味子相关文献,运用CiteSpace5.8.R3可视化软件和文献计量学方法,绘制五味子研究的作者、合作机构、关键词聚类及突现词时间分布的科学知识图谱,梳理中外五味子相关研究演化进程、研究热点与前沿方向。结果纳入中文文献2289篇,英文文献1161篇。该领域的中、英文发文量均经阶段性增加后趋于稳定。五味子研究中、英文发文量最多的作者分别为陈建光和Sun Handong;中、英文发文量最多的机构分别为江西中医药大学研究生院和中国科学院,中国是五味子研究最多的国家。五味子研究涉及临床研究和实验研究,早期以化学成分鉴定和抗病毒活性作用机制为主,近年来主要涉及神经退行性疾病、溃疡性结肠炎、肝损伤、缺血性脑损伤、抗肿瘤的作用机制研究。结论五味子有效成分的抗炎、抗氧化应激和细胞凋亡等信号转导通路的调控机制是近年持续的研究热点及研究趋势。

五味子木脂素对神经退行性疾病神经保护机制的研究进展

神经退行性疾病是神经元结构或功能丧失甚至死亡而导致功能障碍的一类疾病。随着人类寿命增加,患病率也逐年上升。其中以阿尔茨海默病和帕金森病等最为常见,临床出现精神、认知和功能障碍,严重影响患者生活质量。五味子Schisandra Chinese(Turcz.)Baill.是传统中药材,五味子木脂素抗氧化活性较强,功效明确,对神经退行性疾病有保护作用。总结了五味子木脂素有效成分干预神经退行性疾病的可能机制,包括抗氧化损伤、抑制细胞凋亡、抑制神经炎性反应及调节神经递质、改善线粒体功能障碍等,以期为临床应用提供一定的借鉴。

五味子治疗男性不育症作用机制研究进展

从我国第七次人口普查的情况来看,我国综合生育率呈下降趋势,临床形式较为严峻。而在不育症夫妇中,因男方因素而致不育约占一半。五味子具有收敛固涩、益气生津、补肾宁心等功效,其作为五子衍宗丸的重要药物之一,治疗男性不育历史悠久。近年来,国内外学者对五味子治疗不育方面的主要有效成分、药理作用及作用机制进行了大量研究,发现五味子全药具有改善生精环境、保护睾丸间质细胞等作用。五味子主要有效成分如五味子甲素、五味子乙素、五味子多糖等具有抑制凋亡、抗氧化应激、调控睾丸基因表达、调控性腺轴等作用;其次,五味子中含有的锌、硒等微量元素在一定程度上可通过抗氧化、调节相关基因及通路来治疗不育。五味子治疗男性不育相关综述较少,该文通过检索近15年来五味子治疗不育症方面的国内外相关文献,并对其相关作用机制进行阐述,为进一步研究五味子的药理作用及临床应用提供依据,为五味子的开发利用提供参考。

基于偏最小二乘法-判别分析算法分析五味子不同炮制品高效液相色谱指纹图谱的变化

目的建立五味子不同炮制品高效液相色谱(HPLC)指纹图谱,并对其进行偏最小二乘法-判别分析(PLS-DA)。方法色谱柱为Agilent Polaris Amide-C18柱(250 mm×4.6 mm,5μm),流动相为乙腈-0.05%磷酸水溶液(梯度洗脱),流速为1.0 mL/min,检测波长为250 nm,进样量为10μL。采用中药色谱指纹图谱相似度评价系统2012A版进行相似度分析,通过PLS-DA算法对炮制前后五味子指纹图谱进行分析。结果建立了五味子炮制前后的HPLC指纹图谱共有模式,五味子及其炮制品醋五味子与酒五味子指纹图谱中共有峰分别有19个和21个;经相似度分析,与对应对照指纹图谱相似度均大于0.9;经与对照品比对,指认出6个化合物;且PLS-DA分析筛选出6号峰(5-羟甲基糠醛)、8号峰(五味子醇甲)、18号峰、10号峰(五味子甲素)、5号峰和19号峰为主要差异标志物。结论该方法可用于五味子、醋五味子及酒五味子的指纹图谱分析,为完善五味子的质量标准提供了参考。

东北地区野生与栽培五味子质量评价研究

目的:对东北地区野生与栽培五味子质量进行评价,以期为五味子优良种质筛选提供依据。方法:采用UPLC建立五味子的指纹图谱及含量测定方法,并对数据进行单因素方差分析及化学模式识别分析。结果:39批五味子样品指纹图谱有22个共有峰,指认出7成分,分别为五味子醇甲、五味子醇乙、五味子酯甲、五味子酚、五味子甲素、五味子乙素、五味子丙素。野生、栽培五味子中上述7个成分的总含量分别为0.8565%~1.7909%、0.8901%~1.8184%,野生品中S14号样品的总含量最高,栽培品中S31号样品的总含量最高;通过主成分分析和正交偏最小二乘判别分析筛选出五味子野生与栽培品的11个差异性成分,五味子丙素含量差异最为显著。结论:以木脂素类成分为评价指标,东北地区野生与栽培五味子药材质量存在差异,但7个成分总含量无显著差异。野生品S2、S9、S14号及栽培品S19、S31号可进一步用于开展优良种质筛选研究。

生脉方化学成分及分析方法研究进展

经典名方生脉方由人参、麦冬和五味子三味中药配伍组成,是中药益气养阴生津的代表方。近代根据不同医疗应用相继研制出多种生脉制剂,但是上述制剂的质量标准水平参差不齐,且大多数仅规定了单味药物的个别成分,难以保证临床用药的有效性、安全性。同时近年来随着生脉方的理化鉴别方法不断迭新,对其主要化学成分皂苷类、木脂素类和黄酮类的研究日益完善,但少有针对其成方制剂分析方法的系统性归纳。本文依据现有文献归纳了生脉方中近年来新发现的化合物成分,同时系统性总结生脉方制剂的质量标准及分析方法,以期给经典名方的研究、开发和应用提供参考依据。

基于UPLC特征图谱和多指标含量测定南五味子质量控制

目的:建立南五味子UPLC特征图谱方法,并同时测定不同产地药材中五味子甲素、安五脂素和五味子酯甲含量,为其质量控制及评价提供参考。方法:采用ACQUITY BEH C_(18)(150 mm×2.1 mm,1.7μm)色谱柱,以乙腈-0.1%磷酸溶液为流动相进行梯度洗脱,检测波长为280 nm,12 min切换至220 nm,柱温为35℃,流速为0.3 mL/min,测定不同产地的15批南五味子特征图谱及含量,运用聚类分析法比较不同产地、不同批次间南五味子质量差异。结果:确定15批南五味子UPLC特征图谱中10个共有特征峰,并指认了5‐羟甲基糠醛、原儿茶酸、五味子酯丙、五味子酯甲、五味子酯乙、五味子酯丁、安五脂素和五味子甲素8个成分。五味子酯甲、安五脂素、五味子甲素的进样量分别在0.0085~1.5388μg、0.0246~3.1944μg、0.0216~2.7705μg范围内线性关系良好,加样回收率分别为99.42%、99.36%、98.37%;五味子甲素、安五脂素和五味子酯甲精密度、稳定性、重复性试验的RSD均小于2.0%。结论:所建立的方法准确、简便、重现性良好,可用于南五味子的质量控制,分析结果显示五味子酯甲含量在陕西省西安市周至县、山西省运城市平陆县产区含量较高,相较其他产区具备显著差异;安五脂素含量在陕西省安康市旬阳县,四川省绵阳市平武县产区含量较高,相较陕西西安周至县具备显著差异;五味子甲素含量在不同产区、相同产地不同批次间存在一定波动,各产区之间无显著差异。

UPLC法同时测定心源素胶囊中6种有效成分的含量

目的建立UPLC法同时测定心源素胶囊中6种有效成分的含量。方法采用Waters Acquity UPLC BEH C 18(2.1×50 mm,1.7μm)色谱柱;以乙腈-水为流动相,梯度洗脱,流速为0.3 mL·min^(-1),柱温为40℃;203 nm和250 nm双波长检测,进样量为2μL。结果三七皂苷R_(1)、人参皂苷Rg_(1)、人参皂苷Re、人参皂苷Rb_(1)、五味子醇甲和五味子乙素分别在质量浓度0.0239~2.3866 mg·mL^(-1)、0.0247~2.4722 mg·mL^(-1)、0.0284~2.8378 mg·mL^(-1)、0.0248~2.4744 mg·mL^(-1)、0.0048~0.4780 mg·mL^(-1)和0.0056~0.5560 mg·mL^(-1)范围内与峰面积线性关系良好,相关系数均为1;平均回收率分别为99.9%、100.3%、99.4%、99.2%、98.0%和95.7%,RSD分别为2.6%、1.5%、1.1%、1.5%、2.0%和1.4%(n=6)。结论所建立的方法简便、快捷,结果准确,可用于心源素胶囊的质量控制。