类风湿关节炎患者血清自身抗体对其诊断价值分析

目的：分析抗环瓜氨酸肽抗体（抗CCP抗体）、抗角质蛋白抗体（AKA）及各型类风湿因子（RF）联合检测对类风湿关节炎（RA）诊断与病情活动等方面的作用。方法：选取80例RA患者和75例非RA患者,进行相关实验室指标测定,并对结果进行统计学分析。结果：RF-IgG、RF-IgA、RF-lgM、AKA及抗CCP抗体对RA的敏感性为：RF-IgM〉抗CCP抗体〉RF-IgG〉RF-IgA〉AKA;特异性为：AKA〉抗CCP抗体〉RF-IgG〉RF-IgA〉RF-IgM;联合检测2种、3种、5种抗体对RA的敏感性和特异性分别是：RF-IgA＋RF-lgM为51.3%/81.3%,RF-IgG＋RF-IgA＋RF-lgM为43.8%/89.3%,RF-IgA＋RF-lgM＋抗CCP抗体为45%/98.7%,RF-IgA＋RF-lgM＋AKA为22.5%/98.7%,RF-IgG＋RF-IgA＋RF-lgM＋抗CCP抗体＋AKA为18.8%/100%;抗CCP抗体阳性和阴性患者在RF滴度值、ESR和晨僵方面差异存在统计学意义（P〈0.05）。结论：抗CCP抗体在诊断RA中的价值优于AKA和RF;抗CCP抗体在一定程度上可能有助于早期诊断和活动性的监测;RF与抗CCP抗体、AKA联合检测可进一步提高对RA诊断的特异性。

Diagnostic value of anti-cyclic citrullinated peptide antibody, antikeratin antibody and rheumatoid factor in patients with rheumatoid arthritis

Objective: To analyze the value of anti-CCP,anti-AKA and rheumatoid factor antibodies(RF-IgA,RF-IgG,RF-IgM) in diagnosis and prognosis in patients with rheumatoid arthritis(RA).Methods:80 RA patients and 75 patients with other rheumatic diseases were investigated,the relationship between them was analysed with SPSS17.0 software.Results:The sensitivity of RF-IgG,RF-IgA,RF-IgM,anti-AKA and anti-CCP was RF-IgM>anti-CCP>RF-IgG> RF-IgA>AKA;and the specificity was AKA>anti-CCP>RF-IgG>RF-IgA>RF-IgM;The sensitivity...