目的检测类风湿关节炎(RA)患者血清中内皮抑素(endostatin)、碱性成纤维细胞生长因子(bFGF)和抗环瓜氨酸肽(anti-CCP)抗体水平,并探讨其在RA中的临床意义。方法选取RA患者30例,健康对照30例。用酶联免疫吸附法(ELISA)检测患者血清中endostatin、bFGF和anti-CCP抗体水平。结果①RA患者血清中endostatin的水平(62.57±24.96)ng/ml,明显高于健康对照组(43.59±8.58)ng/ml(P〈0.001),bFGF的水平(24.46±11.50)pg/ml明显高于健康对照组(16.07±4.12)pg/ml(P〈0.002),RA患者血清中anti-CCP(17.44±4.35)RU/ml也明显高于健康对照组(2.32±0.97)RU/ml(P〈0.001)。②相关性分析显示en-dostatin水平与bFGF呈高度正相关(r=0.934,P〈0.01),endostatin水平与anti-CCP抗体呈高度正相关(r=0.836,P〈0.01),bFGF与anti-CCP抗体(r=0.789,P〈0.01)具有中度相关性。结论endostatin、bFGF及anti-CCP抗体对RA具有较好的敏感性和高度的特异性,联合检测endostatin、bF-GF、anti-CCP抗体可作为RA患者及RF阴性RA患者的诊断指标。
Objective To detect endostatin,basic fibroblast growth factor(bFGF)and the anti-cyclic citrullinated peptide antibody(anti-CCP)in rheumatoid arthritis(RA)and to explore its value in the pathogenesis of RA.Methods Serum samples were obtained from 30 RA patients,30 healthy individuals.Serum level of endostatin,bFGF and anti-CCP were examined by enzyme-linked immunosorbent assay(ELISA).Results ①The concentration of endostatin in RA(62.57±24.96)ng/ml was significantly higher than that in healthy controls(43.59±8.58)ng/ml(P〈0.001).The concentration of bFGF in RA(24.46±11.50)pg/ml was significantly higher than that in healthy controls(16.07±4.12)pg/ml(P〈0.002).The concentration of anti-CCP in RA(17.44±4.35)RU/ml was significantly higher than that in healthy controls(2.32±0.97)RU/ml(P〈0.001).②There were highly positive correlations between endostatin and bFGF(r=0.934,P0.01),endostatin and anti-CCP antibody(r=0.836,P0.01),bFGF and anti-CCP antibody(r=0.789,P0.01).Conclusion Endostatin,bFGF and anti-CCP are quite sensitive and specific in the diagnosis of RA.To detect the endostatin,bFGF and anti-CCP may be useful factors for positive or negative RA patients.