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23 May 2018 : Animal Research  

A Macaca Fascicularis Knee Osteoarthritis Model Developed by Modified Hulth Combined with Joint Scratches

Xin Zhou1ABEF, Lei Zhang1AEF, Xiaoguang Guo1CDE, Gang Liu1BCD, Guoyou Wang1EF, Shijie Fu1EFG*

DOI: 10.12659/MSM.906626

Med Sci Monit 2018; 24: ANS3393-3404

Abstract

BACKGROUND: Osteoarthritis is a common degenerative disease of joints, and animal models have important significance in the investigation of this disease. The aim of this study was to develop a better method for developing osteoarthritis models in primates by comparing the modified Hulth score combined with joint scratches modeling method with others.

MATERIAL AND METHODS: We randomly divided 15 young male Macaca fascicularis and 3 old male Macaca fascicularis into 6 groups (n=3). Knee osteoarthritis (KOA) models were developed with different methods: modified Hulth combined with joint scratches (Group A), modified Hulth (Group B), Hulth (Group C), spontaneous models (Group D); sham-operated (Group E), and blank control (Group F). Morphology and pathology of knee joints were observed at the 8th week after surgery. The levels of WBC, IL-1b, and TGF-b1 in synovial fluid were detected by ELISA. The levels of COL-II, ACAN, and MMP-13 in articular cartilage were examined by RT-qPCR and Western blot.

RESULTS: In Brittberg and modified Mankin score, Group A was higher than B (P<0.05) and lower than C (P<0.05), and there was no statistically significant difference between Group A and D (P>0.05). Except for Group E and F, the differences were statistically significant among others in WBC, IL-1β, and TGF-β1 (P<0.05). COL-II and ACAN decreased and MMP-13 increased, and there was no significant difference between Groups A and D (P>0.05) or between Groups E and F (P>0.05). There were statistically significant differences among other groups (P<0.05).

CONCLUSIONS: The models developed by modified Hulth combined with joint scratches were the closet to spontaneous models at the 8th week after surgery.

Keywords: Cartilage, Macaca fascicularis, Models, Animal, Osteoarthritis

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750