Formaldehyde-induced arthritis and complete Freund's adjuvant (CFA)-induced arthritis in rats are well-known models to determine the anti-arthritic activity. Arthritis is a symptom of chronic inflammation. It is a chronic progressive disorder, developing over months or years and involving essentially the synovial joints of the body. Hence, these two models become the basis of this chapter to analyse the anti-arthritic activity.
甲醛诱导的关节炎和完全弗氏佐剂（CFA）诱导的大鼠关节炎是用于确定抗关节炎活性的著名模型。关节炎是慢性炎症的一种症状。它是一种慢性进行性疾病，在数月或数年中逐渐发展，主要累及身体的滑膜关节。因此，这两种模型成为本章分析抗关节炎活性的基础。
