The expression of types X and VI collagen and fibrillin in rat mandibular condylar cartilage Response to mastication forces
作者:
SaloLiisa A.,
HoylandJudith,
AyadShirley,
KieltyCay M.,
FreemontAnthony,
PirttiniemiPertti,
KantomaaTuomo,
GrantMichael E.,
ThomasJ. Terrig,
期刊:
Acta Odontologica Scandinavica
(Taylor Available online 1996)
卷期:
Volume 54,
issue 5
页码: 295-302
ISSN:0001-6357
年代: 1996
DOI:10.3109/00016359609003541
出版商: Taylor&Francis
关键词: Diet;mandibular condyle;masticatory force;temporomandibular joint
数据来源: Taylor
摘要:
Types X and VI collagen and fibrillin were localized by in situ hybridization and immunohistochemical methods in the mandibular condyles of rats, and the response of these molecules to post-weaning diets of soft food, ordinary pellets, or hardened pellets was studied. Type X collagen was synthesized, particularly in conditions of soft food consistency, by cells in the perichondrium-periosteum and in me bone and by cells at the erosion front between cartilage and bone. Type X collagen synthesis diminished under higher compression forces due to mastication and with increasing age. Type VI collagen and fibrillin were synthesized by cells in the perichondrium-periosteum and by chondrocytes and by stromal osteoblasts and were not modified by higher mechanical forces. In contrast to previous findings in the growth plate of long bones, type X collagen in die mandibular condyle was not synthesized by hypertrophic chondrocytes but was associated with cells of the osteoblastic rauier than the chondroblastic phenotype.
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