摘要
目的初步探索前交叉韧带(anterior cruciate ligament,ACL)损伤后后交叉韧带(posterior cruciate ligament,PCL)中基质金属蛋白酶(MMP-2)的表达量变化情况。方法用已获专利的大鼠前交叉韧带瞬时扭转损伤装置将大鼠ACL损伤后在体外用酶谱分析的方法检测PCL组织中MMP-2的表达量。结果ACL损伤后的第1,2,3d后,PCL组织培养上清液中的MMP-2表达量呈时间依赖性递增趋势。结论ACL急性损伤后,PCL组织释放大量MMP-2至关节液中。
Objective To detect the expression of MMP-2 of posterior cruciate ligament (PCL) tissue alter anterior cruciate ligament (ACL) injury. Method The rat knee injury apparatus designed by our lab was used to make rat instantaneous injured ACL. Then, the expression of MMP-2 in PCL was detected in vitro with zymography. Result The expression of MMP-2 in PCL cultured supernatant fluid increased in a time dependent way after ACL injury. Conclusions PCL contributed to the accumulation of MMP-2 in the joint fluid after acute ACL injury.
出处
《医用生物力学》
EI
CAS
CSCD
2009年第3期162-164,168,共4页
Journal of Medical Biomechanics
基金
国家重点基础研究发展计划(2005CB522703)
高等学校学科创新引智计划(国家“111计划”)(B06023)
the OREF Award(USA)
NIH AR45635(USA)项目
关键词
扭转
前交叉韧带
后交叉韧带
基质金属蛋白酶
大鼠
Rotary
Anterior cruciate ligament (ACL)
Posterior cruciate ligament (PCL)
Matrix metalloproteinase (MMP)
Rat