Conclusion: (1)MMP-1,MMP-9,TIMP-1 expression were constructive in HUVEC CRL-1730 . The express level and the proportionality of MMP-land TIMP-1, MMP-9and TIMP-1 achieved and maintained in equilibrium states.

• TIMP-1mRNA的表达在1、6、24小时无差别(P>0.；05)。