title: Effect of Wenhua Juanbi recipe on proliferation and apoptosis of synoviocytes in rats with collagen-inducing arthritis.
abstract: OBJECTIVE
  To study the effect of Wenhua Juanbi Recipe (WJR) on proliferation and apoptosis of synoviocytes in rats with collagen-inducing arthritis (CIA).
  
  
  METHODS
  A CIA model was induced by intradermal injection of bovine collagen type II emulsion at the base of rat tails. Thirty modeled healthy Wistar rats were randomly assigned to one of three groups (10 per group): the model group, the methotrexate (MTX)-treated group (0.78 mg/kg) and the WJR-treated group (22.9 g/kg). A group of 10 healthy rats was used as normal control. Treatments or normal saline for the control group were administered by oral gavage once daily. Rats were sacrificed after 30-day treatment and subjected to the following examinations: arthritis index (AI) was estimated, inflammatory cell infiltration and proliferation in synovial membrane were evaluated by microscopy, the synoviocyte apoptosis was determined by TUNEL assay, and the cell apoptosis index was calculated.
  
  
  RESULTS
  AI was lowered significantly in the WJR group compared to the model group (P<0.01). The pathological findings observed in the model group were reversed in the WJR group, including increase in inflammatory cell infiltration and synoviocyte proliferation in synovial membrane and reduction in cell apoptosis index (all P<0.01).
  
  
  CONCLUSIONS
  Synoviocyte proliferation and apoptosis reduction were present in CIA rats. WJR was effective in treating the rat model of CIA. The therapeutic effect might be exerted through inducing apoptosis and suppressing proliferation of synoviocytes.
authors: Department of Arthropathy, Zhejiang Provincial Hospital of Integrated Traditional and Western Medicine, Hangzhou, China. liuxide2001@sohu.com
authors: Xi-de
authors: XD
authors: Liu
authors: Ying
authors: Y
authors: Chen
authors: Feng-yun
authors: FY
authors: Liu
authors: Li-hong
authors: LH
authors: Ye
authors: Long
authors: L
authors: Cai
mesh_terms: D000818:Animals; D017209:Apoptosis / Q000187:drug effects*; D001169:Arthritis, Experimental / Q000473:pathology*; D002417:Cattle; D049109:Cell Proliferation / Q000187:drug effects; D004365:Drugs, Chinese Herbal / Q000494:pharmacology* / Q000627:therapeutic use*; D008297:Male; D051381:Rats; D017208:Rats, Wistar; D013583:Synovial Membrane / Q000187:drug effects / Q000473:pathology*
chemical_list: D004365:Drugs, Chinese Herbal; C588019:wenhua juanbi