Research Article

Tissue-Specific Autoantibodies Improve Diagnosis of Primary Sjögren’s Syndrome in the Early Stage and Indicate Localized Salivary Injury

Figure 1

Levels of serum TSAs in SS patients compared to those in HCs. The serum IgA levels of anti-CA6, anti-SP1, and anti-PSP were significantly higher in both pSS and sSS patients. Serum anti-CA6 IgG was remarkably higher in pSS patients. Others presented no significant difference. Dotted lines denote the cutoff for the positive value, 20 EU/ml. (, , ).