Screening of α-glucosidase inhibitors from roots of Cichorium glundulosum by UF-LC-MS and molecular docking / 中草药

ABSTRACT

Objective To screen α-glucosidase inhibitors from root extract of Cichorium glundulosum (CGR) by UF-LC-MS and molecular docking. Methods The inhibitory activity of CGR extract was evaluated by establishing enzyme inhibitor model, Meanwhile, four active compounds from CGR extract were screened by UF-LC-MS and identified as α-glucosidase inhibitors, which were verified by using Autodock Software. Results The results showed that two compounds that combined with α-glucosidase well were screened out, including baicalin and lactupicrin, which showed significant α-glucosidase inhibitory activity in the concentration range of 0.1-2 mg/mL in a dose-dependent manner. Conclusion Our work provide theoretical basis for screening natural and high affinity enzyme inhibitors from CGR by using UF-LC-MS and molecular docking and further study of the hypoglycemic effect of C. glundulosum.