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| 1 | Quantitative and HPLC fingerprint analysis combined with chemometrics for quality evaluation of Codonopsis Radix processed with different methods显示文摘Objective: To observe the effect of different processing methods on the quality of Codonopsis Radix and provide data reference for the reasonable processing in the producing areas.Methods: An analytical strategy that combined quantitative and HPLC fingerprint analysis with chemometrics was developed for the quality evaluation of Codonopsis Radix. Lobetyolin, polysaccharide, sucrose,glucose, and fructose were detected simultaneously in Codonopsis Radix samples treated with different processing methods including dryer-drying, sun-drying, shade-drying, sulfur fumigation, and kneading,etc.Results: The results showed that different processing methods had an obvious impact on the quality of Codonopsis Radix. Sun-drying or shade-drying was recommended, and sulfur fumigation should be avoided. And dryer-drying at 40 °C-50 °C was suggested to meet the requirement for large scale processing. In addition, based on the content of polysaccharide, glucose, and fructose, it was advised to knead for three times. As for lobetyolin and sucrose, kneading should be avoided.Conclusions: Our findings demonstrated that processing method had a big impact on the quality of Codonopsis Radix. Based on the results, the appropriate processing methods directed at different requirements were recommended. The study could lay a foundation for the reasonable processing of Codonopsis Radix in producing areas. | Shi-man Gao Jiu-shi Liu Min Wang Ting-ting Cao Yao-dong Qi Ben-gang Zhang Hai-tao Liu Xiao-bo Sun Pei-gen Xiao | 2019 | Chinese Herbal Medicines2019，11，2： | 39 |
| 2 | Flavonoid profiling of a traditional Chinese medicine formula of Huangqin Tang using high performance liquid chromatography显示文摘The quality control processes for herbal medicines have been problematic. Flavonoids are the major active components of Huangqin Tang(HQT, a traditional Chinese medicine formula). In this study, we used a combinative method approach consisting of chromatographic fingerprinting(high performance liquid chromatography; HPLC), quantitative methods and a pharmacodynamic evaluation model to analyze the flavonoids of HQT obtained from different sources. Ten batches of HQT were analyzed by the HPLC fingerprinting method and 26 common peaks were detected, of which 23 peaks corresponded with the chemical profile of HQT. In addition, 11 major compounds were identified by LC–MS analysis(liquid chromatography–tandem mass spectrometer; LC–MS^n) and quantified by the HPLC quantitative method approach. The studied10 batches of HQT were found to be homogeneous in their composition with a similarity between 0.990 and1.000. The distribution of the 11 identified compounds was found to be very similar among the batches. Only slight pharmacodynamic differences were detected between the different batches, confirming the homogeneity of HQT. The results of this study prove that the combination of chromatographic fingerprinting and quantitative analysis can be readily used for comprehensive quality control of herbal medicines. | Tao Li Shuaixing Zhuang Yiwei Wang Yanli Wang Weihao Wang Huihui Zhang Li Chen Dunfang Wang Zhongming Zhou Weipeng Yang | 2016 | Acta Pharmaceutica Sinica B2016，6，2： | 19 |
| 3 | A hepatoprotection study of Radix Bupleuri on acetaminophen-induced liver injury based on CYP450 inhibition显示文摘We investigated the potential hepatoprotective effect of Radix Bupleuri(RB) by inducing acute liver injury(ALI) in an animal model using acetaminophen(APAP) after pretreatment with RB aqueous extract for three consecutive days. Compared to those of the APAP group, the biochemical and histological results of the RB pretreatment group showed lower serum aspartate transaminase(AST) and alanine transaminase(ALT) levels as well as less liver damage. Pharmacokinetic study of the toxicity related marker acetaminophen-cysteine(APC) revealed a lower exposure level in rats, suggesting that RB alleviated APAP-induced liver damage by preventing glutathione(GSH) depletion. The results of cocktail approach showed significant inhibition of CYP2 E1 and CYP3 A activity. Further investigation revealed the increasing of CYP2 E1 and CYP3 A protein was significantly inhibited in pretreatment group,while no obvious effect on gene expression was found. Therefore, this study clearly demonstrates that RB exhibited significant protective action against APAP-induced acute live injury via pretreatment, and which is partly through inhibiting the increase of activity and translation of cytochrome P450 enzymes, rather than gene transcription. | WANG Yu-Xin DU Yi LIU Xia-Fei YANG Fang-Xiu WU Xiao TAN Li LU Yi-Hong ZHANG Jing-Wei ZHOU Fang WANG Guang-Ji | 2019 | Chinese Journal of Natural Medicines2019，17，7： | 18 |
| 4 | Progress in research into the mechanism of Radix salviae miltiorrhizae in treatment of acute pancreatitis显示文摘BACKGROUND: Acute pancreatitis (AP) is a common acute abdomen with high mortality, multiple complications and complicated causes. There is no effective therapy for AP. Radix salviae miltiorrhizae (Danshen), a traditional herbal medicine, has a low price and a wide range of clinical applications. It is effective to promote blood flow, eliminate stagnancy, and relieve pain. It is also found to be effective in treating AP. We reviewed the progress in research into the mechanism of Radix salviae miltiorrhizae in treatment of AP. DATA SOURCES: An english-language literature search was conducted using MEDLINE (1988-2005) on Radix salviae miltiorrhizae (Danshen) and acute pancreatitis. RESULTS: The mechanisms of Danshen in the treatment of AP include improvement of microcirculatory disturbances; elimination of oxygen free radicals; modulation of the metabolism of lipid inflammatory mediator; and blocking of calcium inflow and prevention of calcium overload.CONCLUSION: Danshen can effectively reduce the mortality and complications of AP. | Xi-Ping Zhang, Zhi-Jun Li and Da-Ren Liu Department of General Surgery, Hangzhou First People’s Hospital, Hangzhou 310006, China , Zhejiang University of Traditional Chinese Medine, Hangzhou 310053, China Department of General Surgery, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China | 2006 | Hepatobiliary & Pancreatic Diseases International2006，5，4： | 15 |
| 5 | Metabolomics analysis and rapid identification of changes in chemical ingredients in crude and processed Astragali Radix by UPLC-QTOF-MS combined with novel informatics UNIFI platform显示文摘Astragali Radix, the root of Astragalus membranaceus(Fisch.) Bge. var. mongholicus(Bge.) Hsiao or Astragalus membranaceus(Fisch.) Bge., is widely used as a tonic decoction pieces in the clinic of traditional Chinese medicine(TCM). Astragali Radix has various processed products with varying pharmacological actions. There is no modern scientific evidence to explain the differences in pharmacological activities and related mechanisms. In the present study, we explore the changes in chemical components in Astragali Radix after processing, by ultra-high performance liquid chromatography quadrupole time-of-flight mass spectrometry(UPLC-QTOF-MS) combined with novel informatics UNIFI platform and multivariate statistical analysis. Our results showed that the crude and various processed products could be clearly separated in PCA scores plot and 15 significant markers could be used to distinguish crude and various processed products by OPLS-DA in UNIFI platform. In conclusion, the present study provided a basis of chemical components for revealing connotation of different processing techniques on Astragali Radix. | LIU Peng-Peng SHAN Guo-Shun ZHANG Fan CHEN Jiang-Ning JIA Tian-Zhu | 2018 | Chinese Journal of Natural Medicines2018，16，9： | 12 |
| 6 | Effect of Danshen on apoptosis and NF-кB protein expression of the intestinal mucosa of rats with severe acute pancreatitis or obstructive jaundice显示文摘BACKGROUND:Intestinal mucosa injury in cases of severe acute pancreatitis(SAP) or obstructive jaundice(OJ) is one of the main reasons for the accelerated aggravation of these diseases.Besides being an organ to digest and absorb nutrients,the intestine is also a unique immune organ.When SAP and OJ develop,the destruction of the intestinal mucosa barrier is an important contributing factor for the development of bacterial translocation,systemic inflammatory response syndrome,and multiple organ dysfunction syndrome.It is important to protect the intestinal mucosa in the therapy for SAP and OJ.In this study,we determined the effect of Radix Salviae Miltiorrhizae(Danshen) injection on apoptosis and NF-κB P65 protein expression in the intestinal mucosa of rats with SAP or OJ,and explored the protective mechanism of Danshen in their mucosa.METHODS:Sprague-Dawley rats were used in the SAP and OJ experiments.These rats were randomly divided into shamoperated,model control,and treated groups.At various times after operation,the mortality rates were calculated.Subsequently,the rats were killed to assess the pathological changes,the expression levels of Bax and NF-κB proteins,and the apoptosis indices in the intestinal mucosa.RESULTS:Compared to the corresponding model control group,the number of SAP or OJ rats that died in the treated group decreased but showed no statistically significant difference.At all time points after operation,there was no significant difference between the treated and model control groups in the staining intensity as well as the product of staining intensity and positive staining rate of Bax protein in the intestinal mucosa of SAP and OJ rats.At 3 hours after operation,the apoptosis index of the intestinal mucosa of SAP rats in the treated group was lower than that in the model control group(P<0.01).At 12 hours after operation in SAP rats and 28 days after operation in OJ rats,the staining intensity as well as the product of staining intensity and positive staining rate of NF-κB protein of the intestinal mucosa in the treated group were lower than those in the model control group(P<0.01).CONCLUSION:Danshen exerts protective effects on the intestinal mucosa of SAP and OJ rats perhaps by inhibiting apoptosis and down-regulating NF-κB protein. | | 2010 | Hepatobiliary & Pancreatic Diseases International2010，9，5： | 11 |
| 7 | EXPERIMENTAL STUDIES ON THE INHIBITION EFFECTS OF 1000 CHINESE MEDICINAL HERBS ON THE SURFACE ANTIGEN OF HEPATITIS B VIRUS显示文摘Hepatitis B induced by hepatitis B virus(HBV)is a globally spreading common dis-ease which has involved about two hundredmillion victims including hepatitis B patientsand HBV carriers.By means of reversepassive hemagglutination inhibition(RPHI)test,experimental studies on the inhibitioneffects of 1000 traditional Chinese medicinalherbs on the hepatitis B surface antigen(HBsAg)were carried out.The following isa report of the work. | 郑民实 郑有方 | 1992 | Journal of Traditional Chinese Medicine1992，12，3： | 10 |
| 8 | Effects of radix curcumae-derived diterpenoid C on Helicobacter pylori-induced inflammation and nuclear factor kappa B signal pathways显示文摘AIM:To study effect of diterpenoid C extracted from radix curcumae on Helicobacter pylori(H.pylori)-infected inflammation,intestinal metaplasia,and nuclear factor kappa B(NF-κB)signaling pathway in vitro.METHODS:We used I-type H.pylori to infect human gastric epithelial gastric epithelium cell line(GES-1)cell lines,and then H.pylori-infected GES-1 cells were treated with radix curcumae(RC)-derived diterpenoid C of different concentrations(5,10,20μg/mL)and amoxicillin.The expression of p65,IκB kinase(IKK)αand IKKγproteins was detected with Western blotting,and the expression of interleukin(IL)-8,IL-6 and IL-4 was determined with enzyme-linked immunosorbent assay method.Data were analyzed using SPSS software ver18.0.For comparisons between groups of more than two unpaired values,one-way analysis of variance(ANOVA)was used.If an ANOVA F value was significant,post hoc comparisons were performed between groups.If results were not normally distributed,the Mann-Whitney U test was used to compare two groups of unpaired values,whereas for comparisons between groups of more than two unpaired values,the Kruskal-Wallis H test was used.Statistical significance was established at P<0.05.RESULTS:The MTT assay results revealed the inhibited rate of GES-1,and indicated that the IC5 of RCderived diterpenoid C and amoxicillin all were 5μg/mL for gastric GES-1 cells.The expression of IL-8 was significantly increased,especially at 12 h time point;and the expression of IL-4 was decreased in H.pyloriinfected GES-1 cells.After H.pylori-infected GES-1 cells were treated with RC-derived diterpenoid C of different concentrations and amoxicillin,the expression of IL-8was decreased at 12,24,48,72 h points(P<0.01),especially in high-concentration diterpenoid C(20μg/mL)group;and the expression of IL-4 was increased,especially in moderate and high-concentration diterpenoid C(10 and 20μg/mL)groups.RC-derived diterpenoid C had the inhibitory effects on H.pylori-induced p65 translocation from cytoplasm into cell nucleus,H.pylori-stimulant IkBαdegradation,the phosphorylation of p65 and IkBα,and the expression of IKKαand IKKβproteins.CONCLUSION:RC-derived diterpenoid C can block NF-κB signal pathway,effectively reducing the secretion of H.pylori-induced proinflammatory cytokine and increasing the secretion of anti-inflammatory cytokine. | Xuan Huang Bin Lv Shuo Zhang Qun Dai Bing-Bing Chen Li-Na Meng | 2013 | World Journal of Gastroenterology2013，19，31： | 10 |
| 9 | 黄芪三七合剂对单侧输尿管梗阻大鼠肾间质纤维化的作用研究显示文摘目的探讨黄芪三七合剂对单侧输尿管梗阻(UUO)大鼠肾间质纤维化的作用及机制。方法将雄性SD大鼠60只随机分为3组:UUO组(UUO,n=20)、假手术组(SOR,n=20)、黄芪三七合剂组(A&R,n=20)。从术后24小时开始,A&R治疗组每天分别予A&R(3ml/d)灌胃;UUO组和SOR组予以同等体积生理盐水灌胃,连续14天。于术后3,7,14天分别随机处死各组大鼠。行Masson染色观察肾间质病理学改变;化学比色法测定肾组织匀浆中羟脯氨酸的含量;肾脏组织匀浆检测活性氧自由基(OH.)、脂质过氧化产物丙二醛(MDA)、超氧化物歧化酶(SOD)。采用Western蛋白印迹、免疫组化技术从蛋白质水平检测血红蛋白氧化酶(Heme Oxygenase 1,HO-1)的表达。结果 UUO组肾脏呈进行性肾间质纤维化及肾间质胶原沉积的改变(P<0.05)。A&R组与UUO组比较在不同程度上减轻了胶原在肾间质的沉积和肾脏病理损害。与SOR组相比,UUO组大鼠OH.和MDA高于SOR组,SOD低于SOR组。A&R治疗组均不同程度地改善了上述改变。与SOR组相比,HO-1蛋白的表达UUO组3d开始升高,7d仍有较高的表达,14d回落。A&R治疗组对上述改变作用不明显。结论 A&R对UUO所致的大鼠肾脏纤维化的形成有一定的改善作用,并有一定的抗氧化应激的作用。但对HO-1的作用不明显。 | 谢席胜 冯胜刚 左川 张程珑 邓尧 李会娟 樊均明 | 2011 | 西部医学2011，23，10： | 10 |
| 10 | 不同产地及不同药用部位延龄草中3种皂苷的含量测定显示文摘[目的]建立HPLC法测定不同产地及不同药用部位延龄草中延龄草皂苷B2、B1、B3的含量。[方法]以UItimateXB-C18(4.6mm×150 mm,3μm)为色谱柱,流动相为乙腈-水(10%~100%梯度,0~50 min),检测波长为203 nm,流速为1.0 ml/min,柱温30℃。[结果]延龄草皂苷B2、B1、B3分别在0.1~2.0 mg/ml(R=0.999 6)、0.05~2.0 mg/ml(R=0.999 4)、0.05~3.5 mg/ml(R=0.998 9)范围内与峰面积的线性关系良好,平均加样回收率分别为97.8%(RSD=1.19%)、102.6%(RSD=1.62%)和101.5%(RSD=2.38%)。不同产地及不同药用部位中延龄草皂苷B2、B1和B3的含量差异较大。[结论]该测定方法简便、准确、重现性好,可有效地评价不同产地及不同药用部位延龄草药材的质量。 | 王彦彦 张忠立 左月明 刘勇 裴建国 | 2013 | 安徽农业科学2013，41，9： | 10 |
| 11 | Benzoylaconine induces mitochondrial biogenesis in mice via activating AMPK signaling cascade显示文摘The traditional Chinese medicine “Fuzi”(Aconiti Lateralis Radix Praeparata) and its three representative alkaloids, aconitine (AC), benzoylaconine (BAC), and aconine, have been shown to increase mitochondrial mass. Whether Fuzi has effect on mitochondrial biogenesis and the underlying mechanisms remain unclear. In the present study, we focused on the effect of BAC on mitochondrial biogenesis and the underlying mechanisms. We demonstrated that Fuzi extract and its three components AC, BAC, and aconine at a concentration of 50 μM signi?cantly increased mitochondrial mass in HepG2 cells. BAC (25, 50, 75 μM) dose-dependently promoted mitochondrial mass, mtDNA copy number, cellular ATP production, and the expression of proteins related to the oxidative phosphorylation (OXPHOS) complexes in HepG2 cells. Moreover, BAC dose-dependently increased the expression of proteins involved in AMPK signaling cascade;blocking AMPK signaling abolished BAC-induced mitochondrial biogenesis. We further revealed that BAC treatment increased the cell viability but not the cell proliferation in HepG2 cells. These in vitro results were verified in mice treated with BAC (10 mg/kg per day, ip) for 7 days. We showed that BAC administration increased oxygen consumption rate in mice, but had no significant effect on intrascapular temperature. Meanwhile, BAC administration increased mtDNA copy number and OXPHOS-related protein expression and activated AMPK signaling in the heart, liver, and muscle. These results suggest that BAC induces mitochondrial biogenesis in mice through activating AMPK signaling cascade. BAC may have the potential to be developed as a novel remedy for some diseases associated with mitochondrial dysfunction. | Xiao-hong Deng Jing-jing Liu Xian-jun Sun Jing-cheng Dong Jian-hua Huang | 2019 | Acta Pharmacologica Sinica2019，40，5： | 9 |
| 12 | 葛根产地、品种、采收、加工及其与药材品质关系研究进展显示文摘通过检索中国知网、万方数据知识服务平台、重庆维普等数据库,总结产地、品种、采收、加工对葛根药材品质影响的研究进展,为制定葛根药材药材种植、采收、产地加工等规范提供理论依据。 | 周雨晴 梁迪 李鹏 朱华 杜沛霖 | 2017 | 山东化工2017，46，15： | 8 |
| 13 | Cardiovascular actions of Radix Stephaniae Tetrandrae: a comparison with its main component, tetrandrine显示文摘A comparison of the cardiovascular actions of the extract of Radix Stephaniae Tetrandrae (RST), the root of a Chinese herb Stephania tetrandra S Moore, in rats with those of tetrandrine (Tet), the best known active component of RST was reviewed. The RST extract inhibits Ca2+ influx into the myocyte and reduces protein release during reperfusion with a Ca2+ containing solution following perfusion with a Ca2+ free solution (Ca2+ paradox) , and arrhythmia during reperfusion in the isolated perfused heart. It also reduces the infarct size induced by ischemia/reperfusion in vitro and in vivo. In addition, the RST extract suppresses elevation of arterial blood pressure in DOCA-salt hypertensive rats. It does not further reduce the heart rate and coronary flow significantly during myocardial ischemia. The effects are similar to those of Tet. When compared with the same doses of Tet alone, the RST extract, of which 9 % is Tet, produces equally potent effects on infarction, arrhythmias, coronary flow and heart | Tak-MingWONG | 2000 | Acta Pharmacologica Sinica2000，21，12： | 8 |
| 14 | DNA barcoding provides distinction between Radix Astragali and its adulterants显示文摘Based on variable nuclear and/or organellar DNA sequences among vastly divergent species as well as morphologically indistinguishable species, DNA barcoding is widely applicable in species identification, biodiversity studies, forensic analyses, and authentication of medicinal plants. The roots of Astragalus membranaceus and A. membranaceus var. mongholica are commonly used as Radix Astragali in several Asian countries, including China, Japan, and Korea. However, in addition to the two species recorded in the Chinese Pharmacopoeia, there are twenty-three species from different genera including Astragalus, Oxytropis, Hedysarum, and Glycyrrhiza, which have been used as adulterants not only in trading markets but also by the herbal medicine industry. Therefore, a simple, reliable, and accurate classification method is important for distinguishing authentic Radix Astragali from its adulterants. In this study, we acquired data for 37 samples from four related genera within the family Fabaceae. Then we compared four candidate DNA barcoding markers using ITS, matK, rbcL, and coxI sequences from nuclear, chloroplast, and mitochondrial genomes, all commonly used for plants to identify genetic variations among genera, intraspecies, and interspecies. We observed higher divergences among genera and interspecies for ITS, which have the average Kimura 2-parameter distances of 4.5% and 14.1%, respectively, whereas matK was found to have sufficient divergence at the intraspecific level. Moreover, two indels detected in the matK sequence are useful for PCR studies in distinguishing Radix Astragali from its adulterants. This study suggests that the combined barcoding regions of ITS and matK are superior barcodes for Radix Astragali and further studies should focus on evaluating the applicability and accuracy of such combined markers for a wide range of traditional Chinese herbs. | GUO HaiYan1,2, WANG WeiWei2, YANG Ning2, GUO BaoLin3, ZHANG Sun2, YANG RuiJing2, YUAN Ye2, YU JunLin4, HU SongNian2, SUN QiShi1 & YU Jun2 1School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China 2Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 101300, China 3Chinese Academy of Medical Sciences, Peking Union Medical College Institute of Medicinal Plant Development, Beijing 100094, China 4Department of Chemistry, Tonghua Normal College, Tonghua 134002, China | 2010 | Science China(Life Sciences)2010，53，8： | 7 |
| 15 | Chemical Constituents in Charred Sanguisorbae Radix显示文摘Objective To study the chemical constituents in the effective fractions of charred Sanguisorbae Radix. Methods The compounds were isolated and purified by column chromatography and their structures were identified on the basis of physicochemical properties and spectral analysis. Results Five compounds were isolated and identified as 3β-hydroxy-28-norurs-17,19,21-trien (1), 3β-hydroxy-28-norurs-12,17-dien (2), 3β,19α-dihydroxyurs-13(18)- en-28-oic acid (3), 3β-[(α-L-arabin-opyranosyl) oxy]-28-norurs-12,17-dien (4), and pomolic acid (5). Conclusion Compounds 1, 3, and 4 are novel compounds belong to triterpenoids and triterpenoid saponins, named as sanguisorbigenins Z, Y1 , and Y2 , respectively. | SUN Li-li ZHONG Ying XIA Hong-min ZHOU Qian LV Jia | 2013 | Chinese Herbal Medicines2013，5，1： | 7 |
| 16 | Spectrum-effect relationship between HPLC fingerprints and bioactive components of Radix Hedysari on increasing the peak bone mass of rat显示文摘The traditional Chinese medicine of Radix Hedysari plays an important role in invigorating gas for ascending, benefiting blood for promoting production of fluid, and promoting circulation for removing obstruction in collaterals, which is consistent with the principle of treatment for osteoporosis. This study is designed to investigate the bioactive components on increasing peak bone mass (PBM) by exploring the spectrum-effect relationship between chromatography fingerprints and effect. Multiple indicators are selected to evaluate the pharmacological activity. In fingerprints, 21 common peaks are obtained, five of which are identified. Furthermore, gray relational analysis (GRA) is a quantitative method of gray system theory and is used to describe the correlation degree of common peaks and pharmacological activities with relational value. 21 components are then divided into three different regions, of which ononin and calycosin play an extremely significant role in increasing PBM. In addition, factor analysis and hierarchical cluster analysis (HCA) are used to screen the optimal producing area for Radix Hedysari. This provides a comprehensive and efficient method to improve the quality evaluation of Radix Hedysari, confirming the bioactive components for PBM-enhancement and further develop its medicinal value. | Xin-Yue Chen San-Hu Gou Zhi-Qiang Shi Zhi-Yuan Xue Shi-Lan Feng | 2019 | Journal of Pharmaceutical Analysis2019，9，4： | 6 |
| 17 | 超声波辅助提取虎杖中的白藜芦醇的工艺研究显示文摘[目的]优选超声波辅助提取虎杖中白藜芦醇的最佳工艺。[方法]采用超声波提取,通过正交试验考察提取时间、提取温度、超声功率对虎杖中白藜芦醇提取率的影响。[结果]虎杖中提取白藜芦醇的最佳工艺为:以无水乙醇为提取剂,超声波的提取温度为80℃,提取时间为45 min,提取功率为200 W。在此条件下,虎杖中白藜芦醇的提取率可以达到0.940%。[结论]用超声波辅助提取虎杖中的白藜芦醇,工艺稳定性好且简便易行,为有效提取白藜芦醇提供了一种安全可靠的方法。 | 张景亚 李朋伟 仝艳 王宪龄 | 2011 | 安徽农业科学2011，39，22： | 5 |
| 18 | EGFR/cell membrane chromatography-online-high performance liquid chromatography/mass spectrometry method for screening EGFR antagonists from Radix Angelicae Pubescentis显示文摘The intracellular kinase domains of the epidermal growth factor receptor(EGFR) in some tumor cells are significant targets for drug discovery.We have developed a new EGFR cell membrane chromatography(EGFR/CMC)-online-high performance liquid chromatography/mass spectrometry(HPLC/MS) method for screening anti-EGFR antagonists from medicinal herbs such as Radix Angelicae Pubescentis.In this study,the HEK293 EGFR cells with high expression of EGFR were used to prepare cell membrane stationary phase(CMSP) in the EGFR/CMC model.The retention fractions on the EGFR/CMC model were directly analyzed by combining a 10 port columns switcher with a HPLC/MS system online.As a result,osthole from Radix Angelicae Pubescentis was found to be the active component acting on EGFR like dasatinib as the control drug.There was a good relationship between their inhibiting effects on EGFR secretion and HEK293 EGFR cell growth in vitro.This new EGFR/CMC-online-HPLC/MS method can be applied for screening anti-EGFR antagonists from TCMs,for instance,Radix Angelicae Pubescentis.It will be a useful method for drug discovery with natural medicinal herbs as a leading compound resource. | SiCen Wang Meng Sun YanMin Zhang Jie Zhang LangChong He | 2010 | Science China Chemistry2010，53，11： | 5 |
| 19 | Effect of type 2 diabetes mellitus on flavonoid pharmacokinetics and tissue distribution after oral administration of Radix Scutellaria extract in rats显示文摘Radix Scutellaria is widely applied to the treatment of diabetes mellitus in China. Its main bioactive constituents contain baicalin, wogonoside, oroxyloside, and their aglycones. To investigate the effect of type 2 diabetes mellitus on both pharmacokinetics and tissue distribution of these flavonoid compounds, the six flavonoids in plasma and tissues from the normal and type 2 diabetic rats after oral administration of Radix Scutellaria extract were simultaneously measured by ultra-performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS) method. The results showed that baicalin, wogonoside, and oroxyloside had higher Cmax and AUC values(P < 0.05) in type 2 diabetic rats than that in normal rats and the tissue-distribution behaviors of the six flavonoid compounds in hearts, livers, spleens, lungs, kidneys, brains, pancreas, fat and muscle of the type 2 diabetic rats showed obviously differences from the normal rats(P < 0.05). In conclusion, the differences in the pharmacokinetics of oroxyloside and tissue distribution of the six flavanoids in Radix Scutellaria extract between diabetic and normal rats were found for the first time. The results from the present study provided a crucial basis for a better understanding of in vivo anti-diabetic mechanism of action of the six flavonoids from Radix Scutellaria. | ZHANG Xue-Ju LIU Shu XING Jun-Peng LIU Zhi-Qiang SONG Feng-Rui | 2018 | Chinese Journal of Natural Medicines2018，16，6： | 5 |
| 20 | THE EFFECT OF RADIX SALVIAE MILTIORRHIZAE ON VASOACTIVE INTESTINAL PEPTIDE IN CEREBRAL ISCHEMIA:AN ANIMAL EXPERIMENT显示文摘The levels of vasoactive intestinal peptide(VIP)in three regions of rat brain were assayed in 62 rats.Bilateral common carotid artery ligation was donein 50 rats.Half an hour before ligation 26 rats weregiven 10 g/kg of Radix Salviae Miltiorrhizae(RSM);24 rats were given same volume of normalsaline as controls.A sham operation wasdone in 12 rats.Half an hour(n=30)and 3hours(n=32)after operation,the rats were quicklydecapitated.VIP levels were assayed in cerebralcortex,hippocampus and caudate nucleus,in salin-treated animals,VIP levels of cerebral cortex andcaudate nucleus at 3 hour group were significantlydecreased compared with the sham-operated group.No significant difference was found between RSM-treated and sham-operated groups.The preliminaryresults suggest that VIP may be involved in thepathophysiological procedures of cerebral ischemiaand RSM may attenuate the dysfunction of VIPduring cerebral ischemia. | 匡培根 吴卫平 张凤英 刘洁晓 蒲传强 | 1989 | Journal of Traditional Chinese Medicine1989，9，3： | 5 |
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