Micro-computed tomography evaluation and pathological analyses of female rats with collagen-induced arthritis
Journal of Veterinary Science
;
: 165-171, 2015.
Artigo
em Inglês
| WPRIM
| ID: wpr-86403
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.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia Clínica
/
Artrite Experimental
/
Distribuição Aleatória
/
Ratos Wistar
/
Modelos Animais de Doenças
/
Microtomografia por Raio-X
Limite:
Animais
Idioma:
Inglês
Revista:
Journal of Veterinary Science
Ano de publicação:
2015
Tipo de documento:
Artigo
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