Quality control for alkaloids of Corydalis Rhizoma based on quantitative analysis on multi-components with single marker Absorption of coptisine chloride and berberrubine across human intestinal epithelial by using human Caco-2 cell monolayers Simultaneous determination of six alkaloids in Coptis chinensis of different regions by RP-HPLC Advance in studies on pharmacological activity of coptisine hydrochloride Synthesis and in vitro glucose-lowering effect of 8-alkyl-coptisine Synthesis and in vitro glucose-lowering effect of 8-alkyl-coptisine Dertermination of six alkaloids in different parts of Coptis chinensis by HPLC Study on chemical constituents from Corydalis Rhizoma in Pan’an Dertermination of six alkaloids in different parts of Coptis chinensis by HPLC Fingerprint study of Wuji Pill by UPLC-MS/MS Regulatory effect of coptisine on key genes involved in cholesterol metabolism Discrimination of Cotidis Rhizoma from different habitats by support vector machine Study on dissolution of four alkaloid contents in compatability of Coptidis Rhizoma and Rheui Radix et Rhizoma based on compatability ratio and pH value environment by quantitative analysis of multi-components by single marker Absorption characteristics of alkaloids in Fuzheng Xiaozheng Fang by rat everted intestinal sac models Inhibition of rutaecarpine on in vitro hepatic metabolism of five Coptis alkaloids in rats