Fig. 1From: The association of CD40 polymorphisms with CD40 serum levels and risk of systemic lupus erythematosusThe levels of CD40 in patients with SLE and normal control subjects. The expression of CD40 was significantly increased in patients with SLE compared to that in control subjects [(mean +/− SD 41.7+/− 13.2 pg/ml, n = 205) vs (mean +/− SD 58.5+/− 22.8 pg/ml, n = 220); P <0.001]Back to article page