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Title

Histopathological changes of the antigen-induced chronic arthritis in the knee joint of the rabbit

Year: 1385
COI: JR_IJP-1-2_001
Language: EnglishView: 870
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Authors

Shahriar Dabiri - Department of Pathology, Afzalipour Medical School,Kerman University of Medical Sciences, Kerman
Hamid Najafipour - Physiology Research Center and Department of Physiology, Afzalipour Medical School,Kerman University of Medical Sciences, Kerman
Saeed Niazmand - Physiology Research Center and Department of Physiology, Afzalipour Medical School,Kerman University of Medical Sciences, Kerman
Hamid Tabrizchi - Department of Pathology, Afzalipour Medical School,Kerman University of Medical Sciences, Kerman

Abstract:

Background and Objectives: The cause and pathophysiology of rheumatoid arthritis has not been fully understood and an experimental model of this disease is essential for research on theproblem. In this research study, establishment and histopathological changes of chronic arthritis due to intra-articular antigen injection was used as a model of experimental rheumatoid arthritis. Materials and Methods: Thirty three New-Zeeland white rabbits were sensitized bysubcutaneous injection of combination of methylated bovine serum albumin (MBSA) and Freund’s complete adjuvant (FCA) at days 1 and 14. Sensitized animals at day 28 received intra-articular injections of MBSA. At days 7, 14, 21, and 28 post-injection, excised knee joints were investigatedfor routine light microscopic changes.Results: It was found out that at day 7 there are fibrinous exudates in the joint space andpericapsular soft tissue, edematous synovial villi, and an intact cartilaginous site of joint. At day 14, lymphoid follicle formation at pericapsular area, short and widening of synovial villi, superficialerosion of joint cartilage (perichondritis) was observed. Thereafter, at day 21 increased secondarylymphoid follicles with active germinal centers at pericapsular areas, papillary hyperplasia of the synovial villi, thinning of the cartilaginous site of joint with mononuclear cellular infiltrates (chondritis) was noted. In addition, day 28 was demarcated by continuation of the chondritis andbeginning of osteitis, granulation tissue formation (Pannus) at cartilaginous site of joint, and fibrotic changes of the synovial villi. Rare findings including pseudocyst space and palisading granuloma at the pericapsular area was also observed. Conclusion: Antigen-induced chronic arthritis in the knee joint of the rabbit is a good experimental model to evaluate the pathogenesis and/or effects of drug interferences in the rheumatoid arthritis.

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This Paper COI Code is JR_IJP-1-2_001. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/302528/

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Dabiri, Shahriar and Najafipour, Hamid and Niazmand, Saeed and Tabrizchi, Hamid,1385,Histopathological changes of the antigen-induced chronic arthritis in the knee joint of the rabbit,https://civilica.com/doc/302528

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Type of center: علوم پزشکی
Paper count: 2,158
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