抗CCP抗体、RF、CRP和ESR检测在RA诊断中的应用价值

目的探讨抗环瓜氨酸肽(CCP)抗体、类风湿因子(RF)、C反应蛋白(CRP)和红细胞沉降率(ESR)在早期类风湿关节炎(RA)患者中的水平变化及其在诊断治疗中的应用价值。方法选取2015年12月至2016年6月在该院就诊的早期RA患者210例(RA组),其中男28例,女182例;同时选取其他风湿病患者115例(非RA组),其中男38例,女77例;健康体检者85例(健康组),其中男46例,女39例。采用胶乳增强免疫比浊法定量检测抗CCP抗体;采用免疫比浊法定量检测RF及CRP水平;采用魏氏法检测ESR,检测其在RA及非RA的其他自身免疫系统病患者体内的水平变化。结果 RA组的抗CCP的敏感度、特异度、阳性预测值、阴性预测值、约登指数分别是60.95%、97.64%、98.46%、50.30%、0.59;RF检测分别是52.38%、95.29%、96.49%、44.75%、0.48;CRP检测分别是30.48%、89.41%、87.67%、87.67%、34.23%、0.20;ESR检测分别是49.52%、87.06%、90.43%、41.11%、0.37。RA组抗CCP抗体水平明显高于RF水平,两者的检测结果明显高于非RA组和健康组,差异均有统计学意义(P0.05)。CRP与ESR检测RA组与非RA组比较差异无统计学意义(P0.05)。结论在RA患者中抗CCP抗体水平较高,明显优于RF检测,抗CCP抗体检测对RA早期诊断有较高的价值。

Application value of anti-CCP antibody,RF ,ESR and CRP detection in diagnosis of RA

Objective To investigate the changes of anti-cyclic citrullinated peptide antibody ,rheumatoid factor (RF) ,erythrocyte sedimentation rate(ESR) and C reactive protein(CRP) levels in the patients with early rheumatoid arthritis (RA) and their applica-tion value in the diagnosis and treatment.Methods A total of 210 cases of early RA in sixth affiliated hospital of Guangzhou Medi-cal University from December 2015 to June 2016 were selected as the RA group ,including 28 males and 182 females ,at the same time 115 cases of other rheumatism were selected as the non-RA group ,male ,including 38 males and 77 females.85 persons under-going the healthy physical examination were taken as the health group ,including 46 males and 39 females.The latex enhanced im-mune turbidimetry was adopted to quantitatively detect anti-cyclic citrullinated peptide antibody.The RF and CRP levels were quan-titatively detected by using the immune turbidimetry.The Westergren method was used to test the ESR ,their content changes in RA ,non-RA arthritis and other autoimmune diseases were detected.Results The sensitivity ,specificity ,positive predictive value , negative predictive value and Youden index of anti-cyclic citrullinated peptide antibody in the RA group were 60.95% ,97.64% , 98.46% ,50.30% and 0.59 respectively ,which of RF test were 52.38% ,95.29% ,96.49% ,44.75% and 0.48 respectively ,which of CRP test were 30.48% ,89.41% ,87.67% ,87.67% ,34.23% and 0.20 respectively ,which of ESR test were 49.52% ,87.06% , 90.43% ,41.11% and 0.37 respectively.Anti-cyclic citrullinated peptide antibody detection in the RA group was obviously higher than that of the RF test ,their test results were obviously higher than those of the non-RA group and healthy group ,the differences were statistically significant (P<0.05).CRP and ESR detection had no statistical difference between the RA group and non-RA group (P>0.05).Conclusion Anti-cyclic citrullinated peptide antibody level is higher in the patients with RA ,which is signifi-cantly superior to the RF test ,and anti-cyclic citrullinated peptide antibody detection has higher value for early diagnosis of RA.