【摘要】 目的探讨Ⅰ型胶原吡啶交联终肽(ⅠCTP)在类风湿关节炎(RA)患者血清中测定的临床意义。方法对55例RA活动期、25例RA缓解稳定期及52名正常对照血清采用酶联免疫吸附试验(ELISA)定量检测试剂盒测定血清ⅠCTP的浓度,免疫散射比浊法测定血清类风湿因子(RF)、C反应蛋白(CRP)的浓度。结果在80例RA患者血清中ⅠCTP的浓度与RF、CRP均成正相关(rs=0.407、0.534,P<0.01),CRP与RF亦成正相关(rs=0.405,P<0.01);RA活动期组分别与RA缓解稳定期组和正常对照组间血清ⅠCTP浓度的均值及其增高检出率比较差异均有统计学意义(P<0.01),RA活动期组明显高于其他两组,而RA缓解稳定期组与正常对照组间差异无统计学意义(P>0.05);在RA活动期患者血清中,ⅠCTP试验的敏感度为67.3%、特异性为84.6%、准确度为75.7%;正常对照组血清ⅠCTP浓度的均值为(3.5±2.0)μg/L,血清ⅠCTP浓度在反映RA的活动性上较CRP更为敏感。结论Ⅰ型胶原吡啶交联终肽是RA早期诊断、病情监测及疗效观察的可靠辅助诊断指标。更多还原

【Abstract】 Objective To discuss the clinical significance of serum pyridinoline cross-linked carboxy-terminal telopeptide of typeⅠcollagen in patients with rheumatoid arthritis (RA). Methods Serum ⅠCTP was measured by ELISA and RF, CRP by immunonephelometry assay in 55 patients with active and 25 with stable RA as well as 52 age and sex-matched normal controls. Results SerumⅠCTP was positively correlated with RF and CRP (rs=0.407, 0.534, P<0.01), and so did CRP with RF (rs=0.405, P<0.01) in 80 patients with RA. SerumⅠCTP and its positive rate in the patients with active phase of RA were significantly higher than those with stable RA and normal controls, and those in the patients with active RA were significant different between patients with stable RA and normal controls (P<0.01), but there was no significant difference between the patients with stable RA and normal controls (P>0.05). The sensitivity, specificity and accuracy of serumⅠCTP test were 67.3%, 84.6%, 75.7% in serum of the patients with active RA respectively. The mean serumⅠCTP in normal controls was (3.5±2.0) μg/L. The serumⅠCTP was more sensitive than CRP in the patients with active RA. Conclusion SerumⅠCTP in patients of RA is a reliable assistant marker for early diagnosis, monitoring of the course and the effectiveness of treatment.更多还原