Figure 2
From: Inflammation associated anemia and ferritin as disease markers in SLE
ELISA analysis of serum ferritin and its correlation with disease activity and serum creatinine levels. Ferritin levels in serum of healthy (N = 9), inactive SLE (N = 10), and active SLE (N = 18) patients were determined by ELISA (Raybiotech, Norcross, GA, USA). Serum ferritin levels were increased 6.3-fold in active SLE patients compared to healthy controls and 9.8-fold higher in active SLE patients (P = 0.014) when compared with inactive SLE patients. Serum ferritin levels correlated significantly with SLEDAI scores (R = 0.56, P = 0.001) and serum creatinine levels (R = 0.54, P = 0.001).