CTGF、HGF在肾病患者血清中的表达及临床意义研究

摘要

目的 探讨结缔组织生长因子(CTGF)、肝细胞生长因子(HGF)在肾病患者血清中的表达水平及其与肾纤维化的关系.方法 分别通过酶联免疫吸附试验(ELISA)、全自动生化分析仪测定87例慢性肾病、40例同期健康体检人员(对照组)血清CTGF、HGF、尿素(BUN)、肌酐(Cr)、胱抑素C(Cys-C)水平,采用Pearson相关性分析慢性肾病患者血清CTGF等指标与肾小球硬化、肾小管间质纤维化积分的相关性.结果 慢性肾病Ⅲ级、Ⅳ级血清BUN、Cr、Cys-C水平均高于对照组,差异有统计学意义(P<0.05);慢性肾病Ⅱ级、Ⅲ级、Ⅳ级血清CTGF、HGF水平均高于对照组,差异有统计学意义(P< 0.05);Ⅱ~ Ⅳ级患者Cys-C、血清CTGF水平随着等级增高而上升,组间差异有统计学意义(P< 0.05);Pearson相关性分析显示血清CTGF、HGF、BUN、Cr、Cys-C均与肾小球硬化积分、肾小管间质纤维化积分呈正相关(P<0.05).结论 血清CTGF、HGF可能参与慢性肾病发生、发展的过程,联合检测血清CTGF、HGF的水平可对肾纤维化的诊断、疗效观察、预后判断提供更大的临床价值.%Objective To investigate the expression levels of connective tissue growth factor(CTGF)and hepatocyte growth fac-tor(HGF)in the serum of patients with nephropathy and the relationship with renal fibrosis.Methods Levels of serum CTGF, HGF,blood urea nitrogen(BUN),creatinine(Cr)and Cystatin C(SCys C)in 87 patients with chronic nephropathy and 40 healthy persons(control group)were determined by enzyme-linked immunosorbent assay(ELISA)and the automatic biochemical analyzer. The correlation of indexes like serum CTGF with glomerular sclerosis and renal tubule interstitial fibrosis score in patients with chronic nephropathy was analyzed by Pearson correlation analysis.Results The levels of serum BUN,Cr and Cys-C and in patients with grade Ⅲ and grade Ⅳ chronic nephropathy were significantly higher than those in the control group(P<0.05).The levels of serum CTGF and HGF in patients with grade Ⅱ,grade Ⅲ and grade Ⅳ chronic nephropathy were significantly higher than those in the control group(P<0.05).For patients with gradeⅢ - Ⅳ chronic nephropathy,the levels of Cys-C and serum CTGF increased with the increase of grade(P<0.05).Pearson correlation analysis showed that serum CTGF,HGF,BUN,Cr and Cys-C were signif-icantly positively correlated with glomerular sclerosis score and renal tubule interstitial fibrosis score(P<0.05).Conclusion Serum CTGF and HGF may be involved in the occurrence and renal fibrosis of chronic nephropathy.