Archives of Histology and Cytology
Online ISSN : 1349-1717
Print ISSN : 0914-9465
ISSN-L : 0914-9465
Original articles
Arrangement of D-Periodic Collagen Fibrils and Association of Proteoglycans with Fibrils in the Synovium of the Mouse Temporomandibular Joint
Takashi TERAMOTOMiya KOBAYASHIHideki MIZUTANIYasuo SUGIURAMinoru UEDA
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2001 Volume 64 Issue 1 Pages 51-58

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Abstract
The present study was performed to examine changes in the arrangement of D-periodic collagen fibrils in the synovium of the growing temporomandibular joint in mice. At 1 week of age, the mandibular condyle was undeveloped, and only a few collagen fibrils were recognizable in the subintimal layer of the synovium. At 8 weeks, the mandibular condyle was structurally developed with an increase of collagen fibrils in the synovium; a fully mature condyle was observed at 6 months of age. The close association of proteoglycans with collagen fibrils in the synovium of the growing joint was examined by both conventional and energy-filtering transmission electron microscopy of cupromeronic blue-stained specimens. Proteoglycans were associated with D-periodic collagen fibrils in the short filamentous form in random fashion at 1 week of age, but in a regular pattern with D-periodicity at 6 months. These associations in the synovium could be correlated with the mechanical character of the temporomandibular joint.
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© 2001 by International Society of Histology and Cytology
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