Click on image to view larger version.

Figure 2 Serum levels of TNF-alpha and sTNF-R1. A, Serum levels of TNF-alpha and sTNF-R1 in patients with CHF (n = 15) and in control subjects (n = 11). *p < 0.01 vs. control group. **p < 0.005 vs. control group. B, Correlation of TNF-alpha serum levels with apoptosis rates in HUVECs after exposure to serum for 18 h (n = 26).