Anti-inflammatory effects of leaf and twig of Tripterygium ilfordii on paw edema in mice.
Yu L, Ao M, Wan J, Zhang Y.
School of Life Science and Technology, Huazhong University of Science and Technology, 430074 Wuhan, PR China.
The root of Tripterygium wilfordii (TWH) is a traditional Chinese herb used to treat the immune-related diseases such as rheumatoid arthritis, whereas the leaf and twig of TWH was considered useless and discarded. We performed a study on the anti-inflammatory effects on the leaf and twig portion agent using carrageenan- and adjuvant-induced paw edema in rats. They showed a marked inhibitory effect on edema in both models of inflammation in rats, at the dose of 50, 100 and 200 mg/kg, especially on secondary immunological arthritis. Based on this study, we confirmed that the leaf and twig of TWH is a potentially useful drug suitable for further evaluation for rheumatoid arthritis and can replace root of TWH.