Figure 1.

Serum levels of semaphorin 3A in SLE, RA patients and healthy controls. Sema3A serum levels were significantly lower in SLE patients compared to those in RA patients (55.04 ± 16.30 ng/ml versus 65.54 ± 14.82 ng/ml, P = 0.018) and even lower compared to healthy controls (55.04 ± 16.30 ng/ml versus 74.41 ± 17.60 ng/ml, P < 0.0001). RA, rheumatoid arthritis; SLE, systemic lupus erythmatosus.