目的制备复方中药舒胸速释微丸,筛选速释微丸的最佳制备工艺和处方,使理化性质差异较大的各成分达到同步释放。方法采用挤出滚圆法制备复方中药舒胸速释微丸,以阿魏酸、红花黄色素、三七总皂苷为体外溶出考察的主要指标性成分,对微丸中...目的制备复方中药舒胸速释微丸,筛选速释微丸的最佳制备工艺和处方,使理化性质差异较大的各成分达到同步释放。方法采用挤出滚圆法制备复方中药舒胸速释微丸,以阿魏酸、红花黄色素、三七总皂苷为体外溶出考察的主要指标性成分,对微丸中加入的崩解剂种类和用量、粘合剂和表面活性剂等处方因素进行筛选,并采用正交设计试验以筛选最优处方。结果在处方中加入复合崩解剂(20%泡腾崩解剂、5%羧甲基淀粉钠),以70%乙醇(含2%十二烷基硫酸钠)为粘合剂,可使制备的舒胸速释微丸在1 m in内迅速崩解。在模拟人体胃肠道生理条件下,舒胸速释微丸中红花黄色素和三七总皂苷体外释放的f2值为77.34,红花黄色素和阿魏酸的f2值为58.67,三七总皂苷与阿魏酸的f2值为67.83,表明三者的释放度差异无显著性。结论通过加入复合崩解剂,可以使采用挤出滚圆法制备的舒胸速释微丸迅速崩解,从而使复方中药中理化性质差异较大的各种成分达到同步释放。展开更多
Objective To deliver multiple component drugs to colon site and sustain a synchronous release for better therapeutic effect. For achieving this purpose, colon specific pellet containing total alkaloids of Sophora alop...Objective To deliver multiple component drugs to colon site and sustain a synchronous release for better therapeutic effect. For achieving this purpose, colon specific pellet containing total alkaloids of Sophora alopecuroides （TASA） was prepared. Methods The pellet was prepared by extrasion-spheronizing and subsequently coated with three layers of two polymers. Results The pellet core consisted of 40% TASA, 1：2 in ratio of Bletilla striata polysaccharide （BSP）, an enzyme-degradable material, to microcrystalline cellu{ose （MCC）, filler, and 1% CMC-Na solution as binder by optimization. Concerning of the three coated layers, the outer layer was coated with Eudragit RS30D for controlling drug release in colon, the intermediate layer and the inner layer were coated with same polymer, Eudragit $100, for preventing drug release in upper gastrointestinal tract, which required 23.2%, 21.7%, and 9.3% weigh gain, respectively. The coated pellets released 1.20% of sophoridine and 1.98% of matrine in media mimicking the stomach condition for 2 h, and 23.88% of sophoridine and 22.91% of matrine in media mimicking the intestine for 3 h and finally 90.25% of sophoridine and 89.94% of matrine in colonic conditions within 24 h, And the similarity factor f2 of sophoridine and matrine of release curve for investigated formulation was internal in （50-100） and 〉 80, demonstrating that sophoridine and matrine in formulation achieved a synchronous release. Conclusion The coated pellets achieve a certain colon-specific release and synchronous release.展开更多
目的基于特征图谱整体性表征中药组分群的优势,研究玳玳黄酮滴丸药效组分群的体外溶出行为,评价组分群的同步释药情况。方法建立HPLC特征图谱法及特征活性成分测定法,并采用转篮法评价玳玳黄酮滴丸组分群在4种不同p H值溶出介质(p H 1....目的基于特征图谱整体性表征中药组分群的优势,研究玳玳黄酮滴丸药效组分群的体外溶出行为,评价组分群的同步释药情况。方法建立HPLC特征图谱法及特征活性成分测定法,并采用转篮法评价玳玳黄酮滴丸组分群在4种不同p H值溶出介质(p H 1.2的盐酸溶液、p H 4.5的醋酸-醋酸钠缓冲液、p H 6.8的磷酸盐缓冲液和蒸馏水)中的溶出度及释药特性,分别运用单指数方程模型、威布尔方程模型、对数分布方程模型拟合溶出曲线。结果玳玳黄酮滴丸特征图谱中的9个共有峰成分溶出曲线的相似因子(f2)均大于50,且特征药效成分新橙皮苷及柚皮苷溶出曲线的f2为94.86,表明玳玳黄酮滴丸组分群具有相似的溶出曲线及同步释药特性,特征图谱的9个共有峰活性成分组分群较符合威布尔方程模型的溶出机制。结论所建立的基于特征图谱评价中药有效部位制备的玳玳黄酮滴丸组分群的溶出及同步释药特性的方法可行,为提高其内在质量评价奠定了实验基础。展开更多
文摘目的制备复方中药舒胸速释微丸,筛选速释微丸的最佳制备工艺和处方,使理化性质差异较大的各成分达到同步释放。方法采用挤出滚圆法制备复方中药舒胸速释微丸,以阿魏酸、红花黄色素、三七总皂苷为体外溶出考察的主要指标性成分,对微丸中加入的崩解剂种类和用量、粘合剂和表面活性剂等处方因素进行筛选,并采用正交设计试验以筛选最优处方。结果在处方中加入复合崩解剂(20%泡腾崩解剂、5%羧甲基淀粉钠),以70%乙醇(含2%十二烷基硫酸钠)为粘合剂,可使制备的舒胸速释微丸在1 m in内迅速崩解。在模拟人体胃肠道生理条件下,舒胸速释微丸中红花黄色素和三七总皂苷体外释放的f2值为77.34,红花黄色素和阿魏酸的f2值为58.67,三七总皂苷与阿魏酸的f2值为67.83,表明三者的释放度差异无显著性。结论通过加入复合崩解剂,可以使采用挤出滚圆法制备的舒胸速释微丸迅速崩解,从而使复方中药中理化性质差异较大的各种成分达到同步释放。
基金Major science and technology projects of Guangdong province,China(2013A022100039)Science innovation projects of higher school(2012KJCX0060)+3 种基金Technology Bureau of ZhanjiangGuangdong province,China(2011C3108015)Guangdong province sail plan project of high level talents in 2014the National Natural Science Foundation of China(81473401)
文摘Objective To deliver multiple component drugs to colon site and sustain a synchronous release for better therapeutic effect. For achieving this purpose, colon specific pellet containing total alkaloids of Sophora alopecuroides （TASA） was prepared. Methods The pellet was prepared by extrasion-spheronizing and subsequently coated with three layers of two polymers. Results The pellet core consisted of 40% TASA, 1：2 in ratio of Bletilla striata polysaccharide （BSP）, an enzyme-degradable material, to microcrystalline cellu{ose （MCC）, filler, and 1% CMC-Na solution as binder by optimization. Concerning of the three coated layers, the outer layer was coated with Eudragit RS30D for controlling drug release in colon, the intermediate layer and the inner layer were coated with same polymer, Eudragit $100, for preventing drug release in upper gastrointestinal tract, which required 23.2%, 21.7%, and 9.3% weigh gain, respectively. The coated pellets released 1.20% of sophoridine and 1.98% of matrine in media mimicking the stomach condition for 2 h, and 23.88% of sophoridine and 22.91% of matrine in media mimicking the intestine for 3 h and finally 90.25% of sophoridine and 89.94% of matrine in colonic conditions within 24 h, And the similarity factor f2 of sophoridine and matrine of release curve for investigated formulation was internal in （50-100） and 〉 80, demonstrating that sophoridine and matrine in formulation achieved a synchronous release. Conclusion The coated pellets achieve a certain colon-specific release and synchronous release.
文摘目的基于特征图谱整体性表征中药组分群的优势,研究玳玳黄酮滴丸药效组分群的体外溶出行为,评价组分群的同步释药情况。方法建立HPLC特征图谱法及特征活性成分测定法,并采用转篮法评价玳玳黄酮滴丸组分群在4种不同p H值溶出介质(p H 1.2的盐酸溶液、p H 4.5的醋酸-醋酸钠缓冲液、p H 6.8的磷酸盐缓冲液和蒸馏水)中的溶出度及释药特性,分别运用单指数方程模型、威布尔方程模型、对数分布方程模型拟合溶出曲线。结果玳玳黄酮滴丸特征图谱中的9个共有峰成分溶出曲线的相似因子(f2)均大于50,且特征药效成分新橙皮苷及柚皮苷溶出曲线的f2为94.86,表明玳玳黄酮滴丸组分群具有相似的溶出曲线及同步释药特性,特征图谱的9个共有峰活性成分组分群较符合威布尔方程模型的溶出机制。结论所建立的基于特征图谱评价中药有效部位制备的玳玳黄酮滴丸组分群的溶出及同步释药特性的方法可行,为提高其内在质量评价奠定了实验基础。
