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ÎÄÏ×±êʶÂë:A
ÎÄÕ±àºÅ:1673-8225
(2008)02-00213-04
ÊÕ¸åÈÕÆÚ£º2007-03-10
ÐÞ»ØÈÕÆÚ£º2007-09-28
(07-50-3-1390/W¡¤Q)
Influence of matrix metalloproteinase on osteogenesis in the tibial periosteum of congenital pseudarthrosis
Abstract
AIM:We have paid more attentions on matrix metalloproteinase that has great roles in bone embryonic development, reestablishment and pathological process. This article defines the levels of matrix metalloproteinase-2 and matrix metalloproteinase-9 in periosteum of¡¡the congenital pseudarthrosis of tibia, and elucidate the pathogenesis.
METHODS: The periosteum of the tibia of 19 patients aged 4-13 years¡¡with¡¡congenital pseudarthrosis were studied at Second Department of Bone and Joint, First Clinical Hospital, Jilin University from January 1990 to December 2004. Ten normal periosteum from the healing site after tibia fracture of subjects aged 10¨C15 years and fifteen fresh periosteum from the close tibia fracture were taken as negative group and positive group. The subjects and their family members signed an informed consent. The expressions of matrix metalloproteinase-2 and matrix metalloproteinase-9 were determined by immunohistochemical method.
RESULTS: ¢ÙMatrix metalloproteinase-2 and matrix metalloproteinase-9 were found in vascular endothelial kytoplasm of pseudarthrosis. ¢ÚThe levels of matrix metalloproteinase-2 and matrix metalloproteinase-9 on the congenital pseudarthrosis of tibia were similar to the periosteum of broken ends of the fractured bone (P > 0.05), but significantly higher than the normal periosteum£¨P < 0.05, P < 0.01£©. The levels of matrix metalloproteinase-2 and matrix metalloproteinase-9 on periosteum had significant correlation£¨P < 0.01£©.
CONCLUSION: The higher levels of matrix metalloproteinase-2 and matrix metalloproteinase-9 on periosteum leads bone building slowly and may be the reason related to the congenital pseudarthrosis of tibia.
Li SQ, Yang F, Zhang X, Wang P.Influence of matrix metalloproteinase on osteogenesis in the tibial periosteum of congenital pseudarthrosis.Zhongguo Zuzhi Gongcheng Yanjiu yu Linchuang Kangfu 2008;12(2):213-216(China)
[www.zglckf.com/zglckf/ejournal/upfiles/08-2/2k-213(ps).pdf]
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