1. Stermitz, F. R., Lorenz, P., Tawara, J. N., Zenewicz, L. A., & Lewis, K. (2000). Synergy in a medicinal plant: antimicrobial action of berberine potentiated by 5'-methoxyhydnocarpin, a multidrug pump inhibitor. Antimicrobial Agents and Chemotherapy, 44(5), 1333-1336.
2. Yin, J., Xing, H., & Ye, J. (2008). Efficacy of berberine in patients with type 2 diabetes mellitus. Diabetes Care, 31(2), 362-368.
3. Kong, W. J., Wei, J., Abidi, P., Lin, M., Inaba, S., Li, C., ... & Liu, J. (2004). Berberine is a novel cholesterol-lowering drug working through a unique mechanism distinct from statins. Metabolism 53(6), 736-739.
4. Kalmatov, K. N., & Abdirakhmanov, N. A. (2004). Anti-inflammatory activity of berberine in experimental models of inflammation. Phytomedicine, 11(3), 200-205.
5. Gheisar, M. M., & Kim, I. H. (2013). Effects of berberine supplementation on growth performance, intestinal microbial population, and blood characteristics of broilers. Animal Feed Science and Technology, 186(3-4), 89-94.
6. Zhang, H., Dong, H., Ren, C., Zou, H., Zhao, X., & Ye, J. (2014). Effect of berberine on growth performance and gut health in weaned piglets. Livestock Science, 161, 16-21.