摘要
目的 观察慢性乙型肝炎患者血清基质金属蛋白酶(MMPs)及金属蛋白酶组织抑制因子(TIMPs)水平与肝纤维化及炎症程度的相关性,寻找新的判定肝纤维化程度的血清学指标。 方法 慢性乙型肝炎患者88例,间隔半年行两次肝穿刺活检,病理组织进行炎症活动度及纤维化程度半定量计分;检测血清TIMP1、TIMP2、MMP1、MMP2、MMP9、Ⅳ型胶原、层黏连蛋白、Ⅲ型前胶原N端肽、透明质酸水平。 结果血清TIMP1(γ=0.540,P<0.001)、MMP2(γ=0.314,N=0.003)、TIMP1/MMP1(γ=0.269,P<0.001)与纤维化分级成正相关,MMP 1与纤维化分级成负相关(γ=-0.495,P<0.001),且与血清Ⅲ型前胶原N端肽、透明质酸相关;根据受试者工作特性曲线(ROC)下面积计算,MMP 1以13.96(ng/ml)为临界值,判别S2及S2以上纤维化的敏感性为90.5%,特异性为52.0%;TIMP1以76.84(ng/ml)为临界值,敏感性为91.6%,特异性为64.0%。MMP1以6.86(ng/ml)为临界值,判别肝硬化(S4)期敏感性为70.7%,特异性为80.9%;TIMP1以210.04(ng/ml)为临界值,其敏感性60.5%,特异性92.3%。MMP1、TIMP1与炎症分级及计分均有相关性,而TIMP1与碎屑坏死、桥接坏死相关性最好(r=0.43 5,P<0.001),TIMP2与MMP9与炎症没有明显相关性。 结论 血清TIMP1、MMP1、MMP2水平、TIMP1/MMP1比值可作评估肝?
Objective To investigate the relationship of serum metalloproteinase with the severity of liver fibrosis and inflammation. Methods A total of 88 patients with HBV-related liver fibrosis and early cirrhosis were enrolled from six hospitals. Serum fibrosis markers including hyaluronic acid (HA), Ⅳ collagen (Ⅳ-C), aminoterminal propeptide of type Ⅲprocollagen (PⅢP), laminin (LN), matrix metalloproteinases (MMP)1, 2, 9 and tissue inhibitors of metalloproteinase (TIMP)1, 2 levels were determined. Liver biopsies were assessed according to a modified Scheuer and Chevallier'sscoring system. Results Serum TIMP1 (r = 0.540) and MMP2 (r = 0.314) were correlated positively with the degree of hepatic fibrosis, whereas serum MMP1 (r = -0.495) was correlated negatively. By receiver operating curve analysis (ROC), the sensitivity to distinguish the fibrosis stage 2 from stage 1 was 90.5% and the specificity was 52.0% if the cut-off value of MMP1 was 13.96 ng/ml, and the sensitivity was 91.6% and the specificity was 64.0% if the cut-off value of TIMP1 was 76.84 ng/ml. The sensitivity to distinguish cirrhosis (stage 4). from fibrosis (stage 3) was 70.7% and specificity was 80.9% if the cut-off value of MMP1 was 6.86 ng/ml, and the sensitivity was 60.5% and the specificity was 92.3% if the cut-off value of TIMP1 was 210.04 ng/ml. Conclusion Serum TIMP1, MMP1, MMP2 levels and TIMP1/ MMP1 ratio could be used as serum fibrosis markers.
出处
《中华肝脏病杂志》
CAS
CSCD
2004年第11期666-668,共3页
Chinese Journal of Hepatology