Laportea bulbifera, named Hong He Ma in Chinese, is a kind of Chinese herbal medicine (CHM) commonly used in Miao nationality of China. In this study, 43 batches of Laportea bulbifera were collected from different origins in China. Ethanol, ethyl acetate and petroleum ether were used to prepare
BACKGROUND
Urtica dentata Hand (UDH), the root of Laportea bulbifera (Sieb. et. Zucc.) Wedd, has been traditionally used in traditional Chinese medicine as an anti-inflammatory and immuno-regulatory agent for rheumatoid arthritis and some other autoimmune diseases treatment. And the coumarins are