结果类风湿因子阴性和阳性类风湿关节炎患者之间有55条基因表达存在显著性差异，主要涉及免疫应答和信号传导；
ResultsThere were 55 differential genes between RA patients with and without RF, mainly involving those related with immune response and signal transduction.
抗核抗体、类风湿因子均阴性。
Antinuclear antibody and rheumatoid factor were negative in both periods.
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