FGF2 and inflammatory bowel disease: Furthermore, increased expression of VEGF and other AGFs including basic fibroblast growth factor (bFGF) and platelet-derived growth factor (PDGF) has been detected in mucosal extracts and in the serum of IBD patients as compared to controls (Table 3) [51,53,66,67,68,69,70], although this increase was more evident for UC than for CD, especially for VEGF [61,71,72,73].