Spontaneous Osteoarthritic Lesions in a New Mutant Strain of the Mouse

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概要

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• In our laboratory, mice showing signs of osteoarthritic lesions with cinnamon colored (yellowish-brown) hair were discovered in a colony of B6C3F1 mice. This mouse is characterized by tiptoe walking and swelling and ankylotic changes in the ankle joint. As to radiographic findings, osteoarthritic changes, such as erosion and/or fusion of the bone tissue, were evident in the ankle joints. Histopathological characteristics included irregularity of articular surfaces caused by fissuring and/or erosion with degeneration of articular cartilage, as well as osteophytes with abnormal proliferation of chondrocytes in joint margin regions. Subsequently, ankylotic changes in the ankle joints were completed in the formation of a cartilaginous bridge and fusion of articular cavity with abnormal proliferation of cartilaginous or bone tissues. This mouse strain may provide an additional animal model that is valuable in the study of human osteoarthritis (OA).

• 社団法人　日本実験動物学会の論文

著者

• Yamamoto Hiroaki

  Laboratory Of Experimental Pathology Kohno Clinical Medicine Research Institute

• Yamamoto Hiroaki

  Laboratory Of Pathology Kohno Clinical Medicine Research Institute

• IWASE Naoko

  Laboratory of Pathology, Kohno Clinical Medicine Research Institute

• Iwase Naoko

  Laboratory Of Pathology Kohno Clinical Medicine Research Institute

• Yamamoto Hiroaki

  Laboratory of Biochemistry, Faculty of Science, Kochi University

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