Application of Thin Layer Chromatography in Preparation of Drug Containing Serum of Eucalyptus Oil

[Objectives] To explore whether the thin layer chromatography( TLC) can be used to guide the preparation of drug containing serum of eucalyptus oil. [Methods]Eucalyptus oil samples with different dilution ratio were detected by TLC. Eucalyptus oil was intragastrically administered to mice,serum samples of different eucalyptus oil doses,different intragastric administration methods and different blood sampling times were collected. The above samples were detected by TLC,and the above results were verified by gas chromatography. [Results] TLC can detect concentration difference of eucalyptus oil samples with different dilution ratio. TLC can provide qualitative and semi-quantitative detection of eucalyptus oil in serum. High,medium and low dose of eucalyptus oil in serum had different effects on the growth of MCF-7 cells in the SD rats( P < 0. 05). [Conclusions] TLC can be used to guide the preparation of drug containing serum of eucalyptus oil.

骨疏康干预破骨细胞:激活核因子E2相关因子2调控c-Fos/NFATc1通路

背景:已有研究表明,骨疏康通过调节核苷酸、氨基酸代谢和免疫机制影响骨骼代谢,目前骨疏康治疗骨质疏松症的机制研究主要聚焦于调控成骨细胞,对破骨细胞的关注较少。目的:以RAW 264.7细胞为实验对象,从破骨细胞角度探讨骨疏康治疗骨质疏松症的机制。方法:取8周龄雌性SD大鼠24只,采用随机数字表法分为4组(n=6),3个实验组分别灌胃给予1,2,4 g/kg的骨疏康药液(2次/d),对照组灌胃给予等量蒸馏水(2次/d),连续灌胃7 d后抽取大鼠主动脉血,离心收集血清,同组血清合并,获得低、中、高浓度的骨疏康含药血清及正常血清,进行后续实验。①将RAW 264.7细胞分6组培养:对照组加入正常血清,低、中、高浓度组分别加入低、中、高浓度的骨疏康含药血清,Nrf2抑制剂组加入核因子E2相关因子2(nuclear factor erythroid 2-related factor 2,Nrf2)抑制剂ML385,Nrf2激活剂组加入Nrf2激活剂t-BHQ,采用CCK8法检测细胞相对活性。②将第3代RAW 264.7细胞分5组培养:空白对照组加入正常血清,破骨组加入核因子κB受体活化因子配体(receptor activator of nuclear factorκB ligand,RANKL),低、中、高浓度组在加入RANKL的基础上分别加入低、中、高浓度的骨疏康含药血清,培养5 d后进行抗酒石酸酸性磷酸染色。③将RAW 264.7细胞分5组培养:空白对照组加入正常血清,破骨组加入正常血清与RANKL,高浓度+破骨组加入RANKL+高浓度骨疏康含药血清,破骨+Nrf2激动剂组加入RANKL+t-BHQ,高浓度+破骨+Nrf2抑制剂组加入RANKL+高浓度骨疏康含药血清+ML385,培养5 d后进行Western Blot与活性氧含量检测。结果与结论:①CCK8检测结果显示,骨疏康含药血清及Nrf2抑制剂、激动剂对RAW 264.7细胞活力无明显影响;②抗酒石酸酸性磷酸染色结果显示,骨疏康含药血清呈浓度依赖性抑制破骨细胞的分化;③Western Blot与活性氧含量检测结果显示,与空白对照组比较,破骨组Nrf2蛋白表达降低(P<0.05),c-Fos、NFATc1蛋白表达与活性氧含量升高(P<0.05);与破骨组比较,高浓度+破骨组、破骨+Nrf2激动剂组、高浓度+破骨+Nrf2抑制剂组Nrf2蛋白表达升高、活性氧含量降低(P<0.05),高浓度+破骨组、破骨+Nrf2激动剂组c-Fos、NFATc1蛋白表达降低(P<0.05);与高浓度+破骨组比较,高浓度+破骨+Nrf2抑制剂组Nrf2蛋白表达降低(P<0.05),活性氧含量升高(P<0.05);④结果表明,骨疏康通过激活Nrf2减少活性氧生成,进而抑制下游c-Fos/NFATc1通路表达和破骨细胞分化。

Preliminary Study on the Differentiation of Bone Marrow Mesenchymal Stem Cells into Chondrocytes Induced by TGF-β1, Yougui Yin Drug-Containing Serum and Mechanical Stimulation

Objective: Bone marrow mesenchymal stem cells (BMSCs) have the potential to differentiate into chondrocytes, it is the ideal seed cells for treating cartilage injury. The purpose of this study was to investigate the inducible factors that stimulate the differentiation of bone marrow mesenchymal stem cells into chondrocytes. Methods: Rat BMSCs were isolated and subcultured, and then inoculated on PLGA scaffolds after successfully identificating of BMSCs. They were divided into 5 groups. Blank serum group, TGF-β1 + Yougui Yin drug-containing serum induction group, TGF-β1 + mechanical stimulation induction group, Yougui Yin drug-containing serum + mechanical stimulation induction group, TGF-β1 + Yougui Yin drug-containing serum + mechanical stimulation induction group, 4 weeks later, the adhesion status of cells and scaffolds was observed by Scanning Electron Microscopy, and then chondrocyte induction was performed on different treatment groups. After induction, the expression of Aggrecan and Collagen II was detected by immunofluorescence, and the mRNA expression of Aggrecan and Collagen II was detected by qPCR. Results: BMSCs were identified as rat bone marrow mesenchymal stem cells by immunofluorescence CD34 and CD44 cells. Scanning Electron Microscopy observed that BMSCs grew well on PLGA. Compared with PLGA group, the scaffold space of BMSCS-PLGA composite was significantly reduced, and the growth of cell adhesion scaffold was significantly increased. Compared with the blank serum group, the expression of Aggrecan in TGF-β1 + Yougui Yin drug-containing serum group and Yougui Yin drug-containing serum + mechanical stimulation group was significantly increased. The expression of Collagen II in TGF-β1 + Yougui Yin medicated serum group, Yougui Yin medicated serum + mechanical stimulation group, TGF-β1 + mechanical stimulation group and TGF-β1 + Yougui Yin medicated serum + mechanical stimulation group were significantly increased;PCR results showed that compared with blank serum group, the expression of Aggrecan in other groups was significantly increased, except for Collagen II expression in Yougui Yin drug-containing serum + mechanical stimulation group. Conclusion: BMSCs can differentiate into chondrocytes on PLGA scaffold. Compared with blank serum group, BMSCs can be induced to differentiate into chondrocytes in all induction groups, among all induction groups, TGF-β1 + Yougui-yin drug-containing serum group and TGF-β1 + mechanical stimulation group were more significant, and the difference was statistically significant.

引火汤调节鞘氨醇-1-磷酸受体5信号通路对肺腺癌细胞增殖的影响

目的:探讨引火汤含药血清通过调控鞘氨醇-1-磷酸受体5/Kirsten鼠类肉瘤病毒癌基因/纤维肉瘤蛋白(S1PR5/KRAS/RAF)信号通路对肺腺癌细胞增殖的影响。方法:制备引火汤含药血清。应用不同浓度含药血清干预人非小细胞肺癌细胞(A549、H1299、PC9)24 h,确定最佳抑制浓度。使用最佳抑制浓度干预3种肺腺癌细胞24 h、48 h、72 h,确定最佳抑制时间及最敏感细胞株。采用慢病毒转染技术,构建稳定过表达S1PR5的肺腺癌细胞株,实验分为:OE NC组(空白血清+S1PR5过表达空载组)、OE S1PR5组(空白血清+S1PR5过表达组)、YHT+OE NC组(引火汤含药血清+S1PR5过表达空载组)、YHT+OE S1PR5组(引火汤含药血清+S1PR5过表达组)。采用定量逆转录聚合酶链反应(qRT-PCR)和蛋白免疫印迹检测S1PR5/KRAS/RAF信号通路信使RNA(mRNA)及蛋白的表达情况。结果:采用细胞计数(CCK-8)结果显示在24 h时10%引火汤含药血清对A549、H1299、PC9细胞的抑制作用最显著(P<0.05,P<0.01),但10%引火汤含药血清干预时无明显的时间依赖性,因此选用10%引火汤含药血清作用24 h作为干预条件。因为引火汤含药血清对PC9细胞抑制率最高,因此选用PC9细胞进行机制验证。qRT-PCR结果表明S1PR5过表达组能够上调S1PR5 mRNA的表达水平(P<0.05);引火汤干预后能够降低S1PR5、KRAS、Ras相关的C3肉毒毒素底物1(RAC1)的表达(P<0.05)。蛋白免疫印迹结果显示S1PR5过表达组S1PR5、KRAS、p-RAF1、丝裂原活化细胞外信号调节蛋白激酶1(p-MEK1)、磷脂酰肌醇3-激酶(p-PI3K)、RAC1蛋白表达显著升高(P<0.05);引火汤干预后,S1PR5、KRAS、p-RAF1、细胞外调节蛋白激酶1/2(p-ERK1/2)、RAC1蛋白表达显著降低(P<0.05)。结论:引火汤含药血清能够通过下调S1PR5/KRAS/RAF信号通路抑制肺腺癌细胞增殖。

菊藻丸含药血清调控PTEN对乳腺癌MCF-7细胞生长和转移的作用研究

目的 研究菊藻丸含药血清调控10号染色体上缺失的磷酸酶和张力蛋白同源物基因(PTEN)对人乳腺癌MCF-7细胞生长和转移的作用。方法 8周龄、体重(200±20)g的SPF级Wistar雌性大鼠12只,采用随机数字表法分为菊藻丸组和对照组,各6只。各组分别以5.4 g/(kg·d)菊藻丸和等量生理盐水灌胃,制备含药血清和空白对照血清。将培养好的人乳腺癌MCF-7细胞分为20%空白血清组、5%含药血清组、10%含药血清组、15%含药血清组和20%含药血清组,分别使用含20%空白对照血清和含5%、10%、15%、20%含药血清的培养基进行培养干预。采用CCK-8检测细胞增殖、集落形成实验观察克隆形成能力、TUNEL染色检测凋亡、流式细胞术检测周期分布、划痕实验和Transwell检测细胞迁移和侵袭能力,q PCR和Western blot检测PTEN m RNA和蛋白表达水平。结果 与20%空白血清组比较,10%、15%、20%含药血清组细胞增殖活性降低、克隆形成率减少、侵袭能力降低(P<0.05);5%、10%、15%、20%含药血清组细胞凋亡水平升高、迁移能力降低、细胞周期阻滞于G1期、PTEN的m RNA和蛋白表达水平均升高(P<0.05)。与5%含药血清组比较,10%、15%、20%含药血清组细胞增殖活性降低、克隆形成率降低、细胞凋亡水平升高、迁移能力降低、侵袭能力降低、细胞周期阻滞于G1期、PTEN m RNA和蛋白表达水平均升高(P<0.05)。结论 菊藻丸含药血清能抑制MCF-7细胞生长和转移,其机制可能与激活PTEN的表达有关。

资癸益冲方通过调控SIRT1/PGC-1α信号通路对卵巢颗粒细胞线粒体能量代谢的改善作用

目的探讨资癸益冲方对早发性卵巢功能不全(POI)体外模型线粒体能量代谢的影响。方法应用丙烯醛(ACR)干预人卵巢颗粒细胞KGN构建POI体外模型,给予资癸益冲方含药血清干预,设置对照组、ACR组、资癸益冲方组、EX527(SIRT1抑制剂)组、EX527+资癸益冲方组。流式细胞术检测细胞凋亡率,DCFH-DA法检测细胞ROS水平,Mito-Trakine荧光标记法检测细胞线粒体数量,Seahorse法检测细胞线粒体氧化磷酸化水平,比色法检测细胞ATP水平,RT-qPCR法检测细胞mtDNA拷贝数和SIRT1、PGC-1α、Nrf1、TFAM mRNA表达,Western blot法检测细胞SIRT1、PGC-1α、Ac-PGC-1α、Nrf1、TFAM蛋白表达。结果与对照组比较,ACR组KGN细胞凋亡率和ROS水平升高(P<0.05,P<0.01),线粒体数量和mtDNA拷贝数减少(P<0.01),线粒体有氧呼吸基础值、呼吸最大值、储备值和ATP水平降低(P<0.05,P<0.01),SIRT1、PGC-1α、Nrf1、TFAM mRNA及蛋白表达降低(P<0.05,P<0.01),Ac-PGC-1α蛋白表达升高(P<0.01);与ACR组比较,资癸益冲方组以上指标均改善(P<0.05,P<0.01)。资癸益冲方与EX527联用后,逆转了前者对KGN细胞的上述作用(P<0.05,P<0.01)。结论资癸益冲方可能通过激活SIRT1/PGC-1α信号通路增加线粒体生物合成,改善ACR诱导的KGN细胞线粒体能量代谢障碍。

Effect of Chinese Herbal Drug-Containing Serum for Activating-Blood and Dispelling-Toxin on ox-LDL-Induced Inflammatory Factors'Expression in Endothelial Cells

Objective： To investigate the effects of drug-containing serum of Chinese herbal compound, Xiongshao Capsule （芎芍胶囊, XS, for activating-blood） and Huanglian Capsule （黄连胶囊, HL, for dispellingtoxin） on the oxidized low-density lipoprotein （ox-LDL）-induced inflammatory factors in human umbilical vein endothelial cells （HUVECs）. Methods： Thirty-two rats were randomly divided into four groups： the blank control group treated with distilled water, the positive control group treated with simvastatin （1.8 mg/kg）, the test group I treated with Chinese herbal compound of XS （0.135 g/kg）, and the test group 1T treated with Chinese herbal compound of XS （0.135 g/kg） and HL （0.135 g/kg）. All the treatments were administered for 7 successive days by gastrogavage. Rats＇ blood serum was harvested 1 h after the last administration to prepare respective drug- containing serum. HUVECs were exposed to ox-LDL （100 μg/mL） to induce cell injury model and incubated with corresponding drug-containing serum for 24 h. Untreated HUVECs were set for blank control. Levels of interleukin-6 （IL-6）, tumor necrosis factor-α （TNF-α）, and soluble intercellular adhesion molecule-1 （slCAM-1） in supematant of cultured HUVECs were determined by enzyme-linked immunosorbent assay （ELISA）. HUVEC surface expressions of ICAM-1 and E-selectin were determined by flow cytometry. Results： Levels of IL-6, TNF-α, and sICAM-1 in the supernatant of HUVECs as well as the cell surface expressions of ICAM-1 and E-selectin significantly increased after 24-h ox-LDL stimulation （P〈0.01）, while the abnormal elevations, except slCAM-1 in the test group Ⅰ, were all reduced in the treated groups （the positive control and the two test groups） significantly （P〈0.01 or P〈0.05）. Besides, the effect in the test group Ⅱ seemed somewhat higher than that in the test group Ⅰ but with no statistical significance （P〉0.05）. Conclusion： Drug-containing serum of XS plus HL has a certain inhibitory effect on the vascular endothelial inflammation response induced by ox-LDL.

Pharmacological Effects of Serum Containing Chinese Medicine Bushen Huayu Jiedu Compound Recipe (补肾化瘀解毒复方) in Lung Cancer Drug-resistance Cells

Objective： To explore the pharmacologic effects of Chinese medicine Bushen Huayu Jiedu Compound Recipe （补肾化瘀解毒复方,BSHYJDR） in drug-resistance cells of lung cancer. Methods： Human lung adenocarcinoma A549/DDP cell strain was selected, serum pharmacology and flow cytometer （FCM） method were adopted, $180 tumor-bearing mice and normal mice were given, through gastrogavage, different doses of a decocted concentration of BSHYJDR. Serum from the abdominal aorta was taken to observe the effect of drug-serum on cisplatin （DDP） concentration, free Ca^2＋ concentration and the expression of lung drug-resistance protein LRP-56 in A549/DDP cells. Results： Compared with the drug-resistance group, the intracellular DDP concentration in the group taking a high dose and the normal group of Chinese medicine showed significant difference （P〈0.05）, while no significant difference was found in the low-dose group （P〉0.05）. Compared with the drug-resistance group, the Ca^2＋ concentration in cells and the expression of LRP in lung cancer drug-resistance cells A549/DDP of the high-dose group, the low-dose group and the normal group of Chinese medicine were significantly different （all P〈0.01）, the LRP expression of the normal group was obviously higher than that of the drug-resistance group （P〈0.05）. Cenclusien： It was indicated that serum containing Chinese medicine BSHYJDR in the tumor-bearing mice and the normal mice had certainly different, tumor-bearing mice serum containing could improve drug concentration in lung cancer drug-resistance cells, prevent the inflow and release of Ca^2＋, and inhibit the expression of the drug-resistance gene in the lung cancer drug-resistance cells, which might be the mechanism of BSHYJDR in enhancing the efficacy in reversing and inhibiting tumor.

Drug-containing serum of Xinfeng capsules protect against H9C2 from death by enhancing miRNA-21 and inhibiting toll-like receptor 4/phosphorylated p-38(p-p38)/p-p65 signaling pathway and proinflammatory cytokines expression

OBJECTIVE: To investigate effect of drug-containing serum of Xinfeng capsules on myocardial cell growth.METHODS: Drug-containing serum of Xinfeng capsules rat models were established by intragastricly administrated Xinfeng capsules. MTT assay wasused to evaluated H9C2 cells viability. H9C2 cells were divided into normal control group, triptolide group, lipopolysaccharide(LPS) group, drug-containing serum group and mi RNA-21 inhibitor group. micro RNA-21(mi RNA-21) inhibitor was structured and transfected into H9C2 cells. Western blot and immunofluorescence assay were applied to examine toll-like receptor 4(TLR4), phosphorylated p-38(p-p38) and p-p65 expression. Quantitative real-time PCR(q RT-PCR) was used to evaluated m RNA levels of mi RNA-21. Enzyme linked immunosorbent(ELISA) was used to measure tumor necrosis factor α(TNF-α), IL-6 and IL-17 levels.RESULTS: Drug-containing serum treatment significantly increased cell viability compared to LPS treated group. q RT-PCR results indicated that mi RNA-21 levels were significantly decreased in drugcontaining serum group compared to LPS group.Early and late apoptosis in drug-containing serum group were significantly decreased compared to LPS group. Western blot and immunofluorescence assay results showed that TLR4, p-p38 and p-p65 levels in drug-containing serum group were significantly decreased compared to LPS group. ELISA findings indicated that drug-containing serum significantly decreased inflammatory cytokine levels of TNF-α, IL-6 and IL-17.CONCLUSION: Drug-containing serum of Xinfeng capsules protect against lipopolysaccharide instructed H9C2 cells from death by enhancing mi RNA-21 and inhibiting TLR4/p-p38/p-p65 signaling pathway and proinflammatory cytokines expression.

巴戟天多糖含药血清对体外成骨细胞DKK-1表达的影响

目的探讨巴戟天多糖含药血清对成骨细胞增殖、分化及DKK-1蛋白表达的影响。方法源于大鼠颅盖骨的原代成骨细胞中加入不同浓度的巴戟天多糖含药血清进行干预。MTT法观察巴戟天多糖含药血清对成骨细胞增殖的影响,用硝基苯磷酸盐(P-nitrophenyl phosphate,PNPP)偶氮法观察含药血清对成骨细胞碱性磷酸酶(alkaline phosphatase,ALP)活性的影响,用蛋白印记法观察含药血清对成骨细胞DKK-1蛋白表达的影响。结果巴戟天多糖含药血清可使体外培养成骨细胞的增殖率明显提高(P<0.01),并能提高成骨细胞ALP活性(P<0.01)。此外,巴戟天多糖含药血清可以下调成骨细胞DKK-1蛋白的表达。结论巴戟天多糖含药血清可促进成骨细胞的增殖能力和ALP活性,并可通过下调成骨细胞DKK-1蛋白的表达影响骨代谢。

二至丸抗大鼠肾细胞衰老的GC-MS代谢组学研究

目的研究D-半乳糖诱导的衰老大鼠肾细胞(NRK)内源性代谢物的变化,寻找与衰老有关的代谢生物标志物,探讨二至丸对衰老模型的调节作用及其抗衰老的可能机制.方法采用D-半乳糖复制NRK细胞衰老模型,借助气相色谱-质谱联用(GC-MS)技术,对各组细胞样本进行测定,采用Kruskal-Wallis非参数检验及Dunn's多重比较进行单变量统计分析来筛选差异性代谢物.结果经PLS-DA模式识别分析,对照组、模型组和EZW组细胞样本能够得到很好的区分,共鉴定出31种潜在生物标志物,二至丸含药血清给药后衰老NRK细胞胞内的内源性代谢物水平发生不同程度的回调.结论二至丸可以使D-半乳糖诱导的衰老NRK细胞胞内的异常代谢有所恢复,其治疗作用可能与机体内31个代谢物及10条相关代谢通路的调节有关.

阳和汤含药血清对缺氧乳腺癌干细胞MDA-MB-231增殖的抑制作用及其机制

目的研究阳和汤含药血清对缺氧乳腺癌干细胞MDA-MB-231增殖的抑制作用及其机制。方法体外培养缺氧乳腺癌干细胞MDA-MB-231,采用阳和汤高、中、低浓度含药血清,顺铂,单药或联合HIF-1α抑制剂处理。MTT法检测细胞增殖活性,Real-time PCR法检测HIF-1α、IGF-II、L-Selectin的m RNA表达变化,Western blot检测HIF-1α、IGF-II、L-Selectin的蛋白表达变化。结果阳和汤含药血清能抑制细胞生长,而且呈浓度依赖性,阳和汤含药血清能下调HIF-1α、IGF-II、L-Selectin的m RNA及蛋白表达,且呈浓度依赖性,联合HIF-1α抑制剂效果更明显。结论阳和汤含药血清能抑制缺氧乳腺癌干细胞的增殖,可能通过调节HIF-1α/IGF-II信号通路及L-Selectin的表达抑制乳腺癌细胞的增殖转移。

续苓健骨汤含药血清对MC3T3-E1细胞分化及增殖的影响

目的 探讨续苓健骨汤含药血清对MC3T3-E1成骨细胞分化及增殖的影响。 方法 制备续苓健骨汤含药血清,实验分为空白对照组、含药血清低剂量组、中剂量组和高剂量组。采用CCK-8法和流式细胞术检测续苓健骨汤含药血清对MC3T3-E1细胞增殖和细胞周期的影响;碱性磷酸酶(ALP)活性测定MC3T3-E1细胞的成骨分化能力;茜素红染色检测MC3T3-E1细胞的矿化能力;实时荧光定量PCR检测成骨分化基因Runx2、OC、Bmp2、Col1a1mRNA水平。 结果 与空白对照组比较,中、高剂量续苓健骨汤含药血清能促进 MC3T3-E1 细胞增殖、S期细胞比率和细胞增殖指数,并且呈现一定的剂量依赖性;同时中高剂量续苓健骨汤含药血清组能明显提高 MC3T3-E1 细胞ALP活性( P <0.01)和钙化能力( P <0.01),促进 Runx2、OC、Bmp2、Col1a1 mRNA的表达( P <0.05)。 结论 续苓健骨汤含药血清能促进成骨细胞MC3T3-E1的增殖,并通过上调骨形成相关基因Runx2、OC、BMP2、Col1a1的表达水平,提高MC3T3-E1细胞的成骨能力。

复方五仁醇胶囊含药血清中木脂素类成分的UPLC-MS/MS分析

目的:分析复方五仁醇胶囊大鼠灌胃后消化吸收进入血液的木脂素类成分,以便与该制剂血清药理学研究相结合,阐明其药效物质基础。方法:采用UPLC-MS/MS方法,比较复方五仁醇胶囊含药血清、体外制剂、空白血清及对照品提取离子流色谱图(EIC),并通过质谱图相关离子峰分析,确认进入血液的木脂素类成分。结果:发现制剂中存在的五味子醇甲、五味子醇乙、五味子酯甲、五味子甲素、五味子乙素5个木脂素类成分进入血液。结论:这5个木脂素类成分很可能是复方五仁醇胶囊体内直接作用物质的重要组成部分,结合血清药理学作进一步研究有助于阐明该制剂药效物质基础。

宁夏密点麻蜥含药大鼠血清对人胃癌BCG-823细胞凋亡的影响

目的研究宁夏密点麻蜥高、中、低剂量对人胃癌(gastric cancer,GC)BCG-823细胞增殖凋亡的影响,同时测定细胞P53、Bax、基质金属蛋白酶-9(matrixmetalloproteinase-9,MMP-9)及E-cad蛋白表达水平,阐明宁夏密点麻蜥对GC细胞的干预作用及其机制.方法50只SPF级♂SD大鼠,随机分为生理盐水对照组(S组),宁夏密点麻蜥高(XH组)、中(X M组)、低(X L组)剂量组、华蟾素片对照组(HC组),共5组,每组10只.各组用生理盐水及相应浓度宁夏密点麻蜥药物灌胃1 wk后处死,腹主动脉取血,离心,制备含药血清.用MTT法检测药物血清对人GC BCG-823细胞增殖活性的影响;用Western blot检测方法测定GC细胞P53、Bax、MMP-9及E-cad蛋白表达水平,并进行统计分析.结果含药大鼠血清各干预组OD均值小于生理盐水对照组;宁夏密点麻蜥高、中、低剂量组之间比较,P<0.05;P53、Bax以及E-cad蛋白表达水平与生理盐水组比显著升高,MMP-9蛋白表达水平与生理盐水组比降低.随着血清药物浓度的增高,MMP-9的表达呈依赖性降低,P53、Bax以及E-cad的表达呈依赖性增强.结论宁夏密点麻蜥能影响P53、Bax、MMP-9及E-cad蛋白表达水平,抑制人GC BCG-823细胞增殖,并诱导细胞凋亡,具有良好的抗癌作用.

红车轴草总异黄酮含药血清对MC3T3-E1细胞增殖、分化和矿化的影响

目的研究红车轴草总异黄酮含药血清对MC3T3-E1成骨样细胞增殖、分化和矿化的影响。方法大鼠灌胃红车轴草总异黄酮一定时间后,制备含药血清,并分别采用MTT法、碱性磷酸酶活性测定法、ELISA法和茜素红染色测定矿化结节的方法考察不同浓度红车轴草总异黄酮含药血清对MC3T3-E1成骨样细胞的增殖率、碱性磷酸酶活性、骨钙素生成以及矿化结节形成的影响。结果不同浓度的红车轴草总异黄酮含药血清都能显著促进MC3T3-E1成骨样细胞的增殖并显著提高MC3T3-E1成骨样细胞碱性磷酸酶的活性,且最佳的含药血清浓度为5%;5%的红车轴草总异黄酮含药血清处理MC3T3-E1成骨样细胞6 d和9 d可显著促进骨钙素的分泌;5%的红车轴草总异黄酮含药血清处理MC3T3-E1成骨样细胞6 d、12 d和18 d,形成的矿化结节均显著高于对照组。结论红车轴草总异黄酮含药血清可以显著促进MC3T3-E1成骨样细胞的增殖、碱性磷酸酶活性、骨钙素分泌和矿化,说明红车轴草总异黄酮含药血清确实可以促进MC3T3-E1成骨样细胞的分化成熟,该药物具有开发为抗骨质疏松症新药的潜力。

五味子含药血清中药源性成分的HPLC-DAD分析

目的分析五味子含药血清中的药源性成分。方法大鼠灌胃给予五味子乙醇提取物制备含药血清,HPLC-DAD测定含药血清、五味子提取物、对照品及空白血清指纹图谱,各色谱峰紫外光谱图,通过色谱峰保留时间和光谱图两方面比对,分析大鼠给药后体内产生的药源性成分。结果含药血清中产生药源性成分13个,其中8个为药材原形成分入血,5个为代谢产物,8个原形成分中的4个分别为五味子醇甲、五味子醇乙、五味子甲素和五味子乙素,所有13个药源性成分均具有联苯环辛烯类木脂素的吸收特征。结论五味子含药血清中的药源性成分主要为联苯环辛烯类木脂素及其代谢产物。

HPLC-ESI-Q-TOF MS/MS分析肉苁蓉拟雌激素活性部位入血成分

为深入研究肉苁蓉(Cistanche deserticola Ma.)活性部位体内作用的物质基础,应用高效液相色谱-四极杆飞行时间质谱(HPLC-Q-TOF MS)技术对肉苁蓉拟雌激素活性部位入血成分进行分析,并与空白血清、肉苁蓉拟雌激素活性部位和对照品之间的色谱图和质谱碎片信息进行对比,共鉴别出13个化学成分,其中包括6个药材原型:京尼平苷酸、红景天苷、肉苁蓉苷A、松果菊苷、毛蕊花糖苷,肉苁蓉苷D;7个代谢成分:3,4-二羟基苯乙醇苷、甲基化毛蕊花糖苷、乙酰化肉苁蓉苷G、3,4-二羟基苯乙醇、乙酰基管花苷B、肉苁蓉苷B葡萄糖醛酸代谢物、甲基化3,4-二羟基苯乙醇苷。该方法可为进一步研究肉苁蓉药理活性和作用机理提供理论支持。

薄荷-荆芥不同配伍组分体外抗流感病毒作用研究

目的检测薄荷-荆芥不同配伍组分含药血清体外对甲型流感病毒的抑制作用。方法通过含药血清对MDCK细胞毒性的测定,计算含药血清的最大无毒剂量;通过CPE法测定甲型流感病毒TCID_(50),采用Reed-Muench氏法计算甲型流感病毒的TCID_(50),对流感病毒感染性进行测定;再运用MTT法观察薄荷-荆芥不同组分配伍组合含药血清对甲型流感病毒增殖的抑制作用。结果以薄荷挥发油-薄荷黄酮-荆芥黄酮、荆芥挥发油-薄荷黄酮-荆芥黄酮、薄荷挥发油-荆芥挥发油-荆芥黄酮不同比例配伍组分对病毒增殖的抑制作用最为明显。结论薄荷-荆芥不同配伍组分含药血清体外可以抑制流感病毒在细胞内增殖,由此可证实薄荷-荆芥作为核心药对,其不同组分配伍具有确切的抗流感病毒作用。

苦参碱含药血清对WB-F344细胞形态、增殖和Jagged1信号分子表达的影响

目的研究苦参碱含药血清对大鼠肝卵圆细胞系WB-F344细胞形态、增殖及Jagged1信号分子表达的影响,探讨苦参碱对肝干细胞诱导分化的作用机制。方法用不同浓度苦参碱含药血清(5%、10%、20%)作用于WB-F344细胞,以未用苦参碱含药血清处理的WB-F344细胞为空白对照组,观察细胞形态学改变,MTT法检测细胞增殖情况,免疫细胞化学法观察ALB、Jagged1蛋白表达变化,RT-PCR观察Jagged1、Hes1mRNA表达的变化。结果经苦参碱含药血清干预后,WB-F344细胞形态发生明显改变:药物组细胞较对照组细胞体积增大,核缩小,核浆比减小,培养48 h大部分细胞呈多边形。MTT结果显示,5%、10%、20%浓度的苦参碱含药血清24、48、72 h均能不同程度抑制WB-F344增殖,且存在时间、剂量依赖性。免疫细胞化学结果显示,空白对照组WB-F344细胞表达Jagged1蛋白,不表达ALB蛋白,经苦参碱含药血清处理后Jagged1蛋白表达显著下降(P<0.01),ALB蛋白表达显著升高(P<0.01)。RT-PCR结果显示,经苦参碱含药血清处理后Jagged1mRNA、Hes1mRNA表达显著下降(P<0.01)。结论苦参碱含药血清可诱导WB-F344细胞向肝细胞特性方向分化,其作用机制与调节Notch信号通路的关键分子有关。