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<p><b>OBJECTIVE</b>To compare the dissolution properties of Ginseng micropowder and common powder in vitro and investigate the effect of micronization on dissolution of Ginseng.</p><p><b>METHODS</b>Five ginsenosides including Rg1, Re, Rf, Rb1, and Rb2 were determined by high performance liquid chromatography, and the dissolution curves of Ginseng micropowder and common powder were drawn.</p><p><b>RESULTS</b>The dissolution rates of ginsenosides from micropowder exceeded 90% within 5 min, significantly greater than that from common powder. But when the powders were packed in tea bags, the dissolution rates of ginsenosides were higher from common powder than from micropowder.</p><p><b>CONCLUSION</b>Micronization treatments can promote dissolution of ginsenosides from Ginseng.</p>
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Cromatografía Líquida de Alta Presión , Ginsenósidos , Química , Panax , Química , Tamaño de la Partícula , Raíces de Plantas , Química , Plantas Medicinales , Química , Polvos , Química , SolubilidadRESUMEN
Poly(epsilon-caprolactone) microspheres were fabricated with an average particle size of 5.08 +/- 0.23 microns. The effect of poly(epsilon-caprolactone) microspheres on apoptosis and cell cycle of fibroblast was studied with flow cytometry. The data obtained clearly indicated that poly(epsilon-caprolactone) microspheres purified in different ways showed different cytocompatibility. The well purified microspheres have good cytocompatibility.
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Animales , Ratones , Materiales Biocompatibles , Farmacología , Biodegradación Ambiental , Técnicas In Vitro , Ensayo de Materiales , Microesferas , Poliésteres , FarmacologíaRESUMEN
Object To set up the quantitative method of baicalin in Gegen Qinlian Decoction (GQD) by RP HPLC and to determine the change of baicalin contents in decoctions prepared from various combinations of GQD. Methods By L 8(2 7) orthogonal design and statistics analysis (SPSS10 0), eight decoctions with Radix Scutellariae either alone or incombination with one or more of the other three components were prepared or analyzed. Contents of baicalin in them were determined by RP HPLC. Results It was significant (P0 05) and interactions between two of three were insignificant either. In this experiment, the sedimentation was found in the decoctions contained Radix Scutellariae and Rhizoma Coptidis. Conclusion The content of baicalin is reduced by Radix Puerariae and Rhizoma Coptidis, The resolution of baicalin is not increased by Radix Glycyrrhizae Preparata. Maybe the change of pH leads to the sedimentation in decoctions contained Radix Scutellariae and Rhizoma Coptidis.
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Object To study the HPCE fingerprinting of Gegen Qinlian Decoction (GQD). Methods A buffer was composed of 30 mmol/L sodium phosphate and 40 mmol/L borate solution. Capillary electrophoresis was performed using a 65 cm (43 cm to detector) ?50 ?m fused-silica capillary tube. Separation voltage was 22 kV, sampling time was 1 s, detected wavelength was 254 nm, and the temperature was maintained at 30 ℃. Results The 27 components in GQD were successfully separated. The observation of methodology was in keeping with quantitatine determination and qualitative study. Conclusion This method can be used for the quality control of the preparation of GQD with good precision.
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Object To set up the quantitative method for determining the puerarin in Gegen Qinlian Decoction (GQD) by RP-HPLC and to study the change of puerarin contents in various combinations of GQD. Methods L 8(2 7) orthogonal design and statistic analysis (SPSS 10.0) were used, the puerarin contents in the samples were determined by HPLC. Results Influence of Radix Scutellaria, Rhizoma Coptidis and Radix Glycyrrhizae Preparata on the puerarin content in GQD was insignificant. And interactions between two of three were insignificant too. In this experiment, puperarin in the sedimentation was found in the compatible decoction of Rhizoma Coptidis and Radix Puerariae. Conclusion The puerarin content is not markedly influenced by Radix Scutellaria, Rhizoma Coptidis and Radix Glycyrrhizae Preparata. Maybe, the change of pH is relevant to the sedimentation in the compatible decoction contained Rhizoma Coptidis. and Radix Puerariae