基于细胞生物电传感效应的复方丹参片溶出动力学研究

目的建立复方丹参片的细胞生物电传感效应模型,以此进行复方丹参片的溶出动力学研究。方法以实时细胞电子分析技术(real-time cell-based assay,RTCA)为手段,测定复方丹参片的体外溶出度,建立溶出动力学模型,并与紫外分光光度法进行比较验证。结果 CCK-8实验和RTCA实验联合筛选出对复方丹参片有特定依赖性的细胞株,建立基于RTCA技术的复方丹参片溶出动力学模型,得到最佳拟合模型Weibull模型ln{ln1/(1-Q)]}=1.071 4 lnt-3.736 7;建立基于紫外分光光度法的复方丹参片溶出动力学模型,得到最佳拟合模型Weibull模型ln{ln1/(1-Q)]}=1.0804lnt-3.7234;两者的Weibull模型比较,RTCA拟合的模型效果更佳。结论 RTCA技术应用于中药复方固体制剂溶出动力学研究,具有可行性,并为中药及中药复方质量评价提供了新思路。

Dissolution kinetics of Compound Danshen Tablets based on cell bioelectrical sensing effect

Objective Establishing the model of cell bioelectrical sensing effect of Compound Danshen Tablets to study its dissolution kinetics. Methods By means of real-time cell-based assay, the in vitro dissolution of Compound Danshen Tablets can be investigated, and then the dissolution kinetics model can also be established. In addition, the result was compared and verified by UV-Vis. Results The cell line with specific dependence on Compound Danshen Tablets was screened by CCK-8 experiment and RTCA experiment. The dissolution kinetics model of Compound Danshen Tablets based on RTCA technology was established, and the best fitting model was obtained:Weibull model ln{ln1/(1-Q)]=1.071 4 lnt-3.736 7; Establish a dissolution kinetic model of Compound Danshen Tablets based on UV spectrophotometry to obtain the best fitting model, Weibull model ln{ln1/(1-Q)]}=1.080 4 lnt-3.723 4; Comparing the two Weibull models, the RTCA fitted model worked better. Conclusion The application of RTCA in the dissolution kinetics of traditional Chinese medicine compound solid preparations is feasible, Which provides new ideas for traditional Chinese medicines and the quality evaluation of traditional Chinese medicine compunds.