Micro-computed tomography evaluation and pathological analyses of female rats with collagen-induced arthritis
Journal of Veterinary Science
; : 165-171, 2015.
Article
in English
| WPRIM (Western Pacific)
| ID: wpr-86403
Responsible library:
WPRO
ABSTRACT
Imaging techniques have been introduced to assess the efficacy and toxicity of developing pharmaceuticals. The purpose of this study was to perform a comprehensive characterization of collagen-induced arthritis (CIA) in rats using micro-computed tomography (micro-CT) and to compare the results with data from conventional pathological examination. Arthritis was induced by collagen in 24 female Wistar rats. Micro-CT and pathological analyses were performed to assess arthritis progression. Micro-CT analysis showed marked joint destruction occurring in a time-dependent manner following collagen administration. Bone volume was significantly decreased in the tibia at weeks 3 and 4 compared to week 0 (p < 0.05 and p < 0.01, respectively). Additionally, percent bone volume was significantly reduced in the tibia at week 4 compared to week 0 (p < 0.05). In contrast, bone surface/bone volume and trabecular separation were significantly increased in the tibia of the animals at week 4 compared to week 0 (p < 0.05). Severe joint destruction with extensive inflammation, erosion of cartilage and bone, and infiltration of inflammatory cells were observed in the knee joints of the collagen-treated rats. Taken together, micro-CT made it possible to quantify CIA lesions and should be performed with pathological examination in rats.
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Pathology, Clinical
/
Arthritis, Experimental
/
Random Allocation
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Rats, Wistar
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Disease Models, Animal
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X-Ray Microtomography
Limits:
Animals
Language:
English
Journal:
Journal of Veterinary Science
Year:
2015
Document type:
Article