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https://hdl.handle.net/2440/32350
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Type: | Journal article |
Title: | Spatial arrangement of physeal cartilage chondrocytes and the structure of the primary spongiosa |
Author: | Johnstone, E. Leane, P. Kolesik, P. Byers, S. Foster, B. |
Citation: | Journal of Orthopaedic Science, 2000; 5(3):294-301 |
Publisher: | Springer-Verlag Tokyo |
Issue Date: | 2000 |
ISSN: | 0949-2658 1436-2023 |
Abstract: | Using laser confocal microscopy and 5-chloromethyl-fluoresceindiacetate (CMFDA) loading of chondrocytes we have investigated the structure of the ovine physis during late fetal development and its relationship to the structure observed in the primary spongiosa. Chondrocytes within the ovine growth plate form nests that together span the growth plate. We propose that all growth plates may be composed of nests of cells, but that the length of the individual nests changes between growth plates and with gestational age. The continuous column of cells seen within some growth plates is a nest of cells that is in the process of being absorbed by the invading metaphyseal front. Scanning electron microscopy of the mineralized portion of the primary spongiosa revealed structures that were consistent with the hypothesis that the cartilage surrounding the nest structure gives rise to the structure in the primary spongiosa. Although mineralization does not occur between cells within a nest, bands of mineral form between nests in the lower hypertrophic region and around the end of the nest as it reaches the hypertrophic region. This pattern of mineralization around and between nest termini yields the complex three-dimensional network of mineralized trabeculae observed in the primary spongosia. |
Keywords: | Cartilage, Articular Epiphyses Chondrocytes Fetus Animals Sheep Fluoresceins Fluorescent Dyes Microscopy, Confocal Microscopy, Electron, Scanning Bone Development Osteogenesis Pregnancy Female |
DOI: | 10.1007/s007760050166 |
Published version: | http://dx.doi.org/10.1007/s007760050166 |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest |
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