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Mally89: ½ð±Ò+1 2012-05-07 16:56:16
Collagen-induced arthritis (Collagen-induced arthritis, the CIA) is now recognized as the best animal models of RA, especially in the treatment mechanism and the immune response, the CIA model has the advantage will provide researchers with a great help,Therefore, we selected the type II collagen immunization as a carrier of factors of production of RA animal models. Long-term study of our group on the CIA model-making has accumulated a wealth of experience in the domestic leading level in the production of the CIA model. The results suggest that have appeared in the CIA rat immune 10d ankle swelling, slow, limp; light microscope CIA rat ankle joint synovial tissue, synovial cell hyperplasia were papillary, slip the membrane see the expansion of blood vessels and new blood capillaries and fibroblasts, accompanied by lymphocyte infiltration. Of the articular cartilage matrix and cartilage cells with varying degrees of degenerative exfoliative serious at the cartilage necrosis, degeneration and necrosis of the exfoliative the cartilage surface, showing that formed by the synovial cells and capillary proliferation, pannus, pannus invasion into subchondral visible to varying degrees of bone destruction; knee joint cavities in synovial tissue hyperplasia, pannus formation, articular cartilage degeneration and bone destruction see there are different degrees; and compared with normal control rats, rats plasma anti-type II collagen antibody, IL-6, IL-10 and IFN-¦Ã and other inflammatory factor levels were significantly increased, to reflect the reliability of the CIA model produced in this experiment, to meet the requirements of the RA model.

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