Application of cassia twig total phenolic acid in preparation of medicine for treating rheumatoid arthritis

The invention discloses application of cassia twig total phenolic acid in preparation of a medicine for treating rheumatoid arthritis. The invention also discloses a medicine for treating rheumatoid arthritis. The medicine is prepared by taking cassia twig total phenolic acid as an active ingredient and adding pharmaceutically acceptable auxiliary materials or auxiliary ingredients. The cassia twig total phenolic acid medicine disclosed by the invention can inhibit proliferation of synovial fibroblasts, induce apoptosis of synovial fibroblasts or inhibit migration and invasion of synovial fibroblasts, so that rheumatoid arthritis is effectively treated, the drug effect is clear, and a new choice is provided for clinical application. 本发明公开了一种桂枝总酚酸在制备治疗类风湿关节炎的药物方面的用途。本发明还公开了一种治疗类风湿性关节炎的药物，它是以桂枝总酚酸为活性成分，加上药学上可接受的辅料或者辅助性成分制备而成。本发明桂枝总酚酸药物可以抑制滑膜成纤维细胞的增殖、诱导滑膜成纤维细胞凋亡或抑制滑膜成纤维细胞迁移和侵袭，进而有效治疗类风湿关节炎，药效明确，为临床提供了一种新的选择。