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- W2162990991 abstract "Osteopetrosis is an inherited metabolic disorder in which normal bone remodelling is inhibited. Its primary cause is considered to be disruption of the functional balance between osteoblasts and osteoclasts as well as a reduction in the quantity of osteoclasts. The purpose of this study was to observe morphological characteristics of the femur in osteopetrotic (op/op) mice, in which the pathogenic mechanism of osteopetrosis has been shown to operate, using microcomputed tomography (micro-CT), in addition to macro-anatomical observations. Previously, micro-CT has been used mainly for morphometry of a small portion of cancellous bone. However, with recent improvements it has become possible for three-dimensional (3D) observations of bone using slightly larger samples to be made. In this study, the accuracy of reconstructed 3D images of the femur produced by micro-CT was confirmed by comparison with the original femur. In addition, an arbitrary cross-section could be displayed on the screen for detailed examination of its internal structure, and the volume percentage of trabecular bone in a particular region of interest could be measured in three dimensions. The results of this study revealed that the femur was smaller and malformed in the op/op mouse compared with the controls, and the differences were greater at the age of 18 weeks than at 5 weeks. In the control mice, bone marrow occupied a large space in the centre of the body of the femur, whereas this area was occupied by calcified bone tissue in the mutant mice. Moreover, when 3D bone density was measured in the region of interest, the value was greater in the mutants than in the controls at both 5 weeks and 18 weeks of age. This study also showed that micro-CT can be applied to 3D morphometric analyses." @default.
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- W2162990991 date "2000-10-01" @default.
- W2162990991 modified "2023-10-12" @default.
- W2162990991 title "Morphological study of the femur in osteopetrotic (op/op) mice using microcomputed tomography." @default.
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- W2162990991 doi "https://doi.org/10.1259/bjr.73.874.11271900" @default.
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