Figure 1.


A. Relative induction of indoleamine 2,3-dioxygenase (IDO) and COX-2 in Caco-2 cells stimulated with IFN-γ and decrease of IDO and COX-2 in cells treated with procyanidin B-2. B. Relative induction of NF-KB in Caco-2 cells stimulated with IFN-γ. 1= control, 2= IFN-γ, 3= 12.5 μM procyanidin B-2, 4= 25 μM procyanidin B-2, and 5= 50 μM procyanidin B-2