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Objective: To study the scutellaria and coptis in different proportions, the main active ingredient of baicalin, berberine dissolution rate changes and to explore the effect of traditional drug pair of scutellaria and coptis on the dissolution rate of active ingredient. Methods: Based on the clinic common used prescriptions of scutellaria with coptis, ratio of 1:0,1:1,1:2,1:3,2:1,2:3,3:1,3:2,0:1 was selected, after the water boiling reflux extraction, refining separation, various products were obtained for the test, under the optimized conditions of RP-HPLC analysis to compare chromatographic fingerprints and to examine the main component baicalin, berberine in aspects of relative peak area ratio of changes and compatibility relations. Results: Compatibility of Scutellaria baicalensis and Coptis at different proportions can influence the dissolution rate of baicalin, Berberine Hydrochloride. There was a non-linear relationship of dissolution rate of baicalin and Scutellaria baicalensis. The best ratio of scutellaria ratio was 3:1, the best compatibility ratio of coptis was 1:3. Conclusion: Different compatibility proportions of scutellaria and coptis will result in different dissolution rate of baicalin and berberine.
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Objective:To observe the influences of functions of chemokine receptor 9(CCR9) on leukemia patients,we analyzed 38 typical T cell lymphocytic leukemia cases.Methods:The functions of T ALL and T CLL CD4+T cells towards TECK/CCL25 were determined by chemotaxis assay and adhesion assay.Results:Almost in all of the T ALL patients,TECK/CCL25(a ligand for CCR9)could induce a high chemotactic migration of T ALL CD4+ cells as well as a high adhesion.Conclusion:It indicates that CCR9 and its ligands may promote survival or proliferation of T ALL cells. [
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Objective To evaluate the quality of Semen Cassiae from different habitats objectively. Methods To determine the content of chryso-phanic according to ChP and establish HPLC fingerprints with the gradient elution solvent composed of acetonitrile and 1% HAC. A C18 column (250 mm?4.6 mm, 5 ?m) was used, flow rate: 1 mL/min, detecting wavelength: 254 nm, and the column temperature: room temperature. The clustering analysis was carried out by SAS software according to the content of chrysophanic and similarity of HPLC fingerprints obtained by the software of similarity analysis. Results The established HPLC fingerprint has desirable precision, reproducibility, and stability. The content of chrysophanic and HPLC fingerprints of Semen Cassiae from various habitats are different, which differs from the habitats. The content range of chrysophanic in Semen Cassiae is 0.037%-0.170% and the similarity is 0.864-0.962. Conclusion The method indicates the difference of the chemical component in Semen Cassiae from various habitats and can be used as a quality control method for Semen Cassiae.
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Objective To investigate the potential mechanism of inhibition of ursolic acid(UA) on growth of human gastric cancer cell lines SGC7901 in vitro.Methods SGC7901 cells were cultured in vitro,MTT assay was used to observe the effect of UA on growth of SGC7901 cells in various concentrations for different times.After SGC7901 cells were treated by 0—40 ?mol/L UA for 24 h,morphological changes were observed by inverted microscope.Apoptotic changes were detected by fluorescence microscopy and flow cytometry (FCM).Protein expressions of Bcl-2 and Bax were determined by Western blotting.Results UA(20—40 ?mol/L) could significantly inhibit the growth of SGC7901 cells in a(dose-and) time-dependent manner,the IC_(50) value of UA for SGC7901 cells for 12,24,36,and 48 h were((57.50?)1.18),(34.28?2.05),(27.54?1.11),and(24.83?1.02) ?mol/L,respectively.After UA((20—)40 ?mol/L) treatment for 24 h,SGC7901 cells turned round and floated at different levels;SGC7901 cells were arrested at G_0/G_1 phase and apoptosis was induced,and the apoptotic rate was increased along with the increase of UA concentration.Meanwhile Bcl-2 protein expression decreased,whereas Bax protein expression unchanged.Conclusion UA has a stronger antitumor effect on SGC7901 cells.Cytotoxic effect,proliferation inhibition,and apoptosis may be involoved in the mechanism of UA,and the apoptosis caused by UA may be enhanced by decrease of Bcl-2 protein expression.
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Objective: To study the preparation and quality control methods of Yuanhu Zhitong HBS Tablet. Methods: the suitable excipients and formulation process of Yuanhu Zhitong HBS Tablet is sieved by means of testing quantity of tetrahydropalmatine through TLC UV. Results: the beginning floating time of HBS Tablet is 3min; relative dissolution of main component tetrahydropalmatine is 32% within 3hr, 86% within 9 hr. Conclusions: the study is found to be effective in the process of Yuanhu Zhitong HBS Tablet.
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This paper,introduced the manufacture process and quality control method of Xiao- erqingfei Suppository.The suppository tallied with requirements of China Pharmacopeia (the 85th edition).Its main active components were identified with TLC.Two represen- tative components were determined:ephedrine and glycyrrhizic acid.