GHRL and familial pancreatic carcinoma: Among two studies of ghrelin levels in patients with pancreatic cancer, both found no difference in the plasma ghrelin levels of the cancer patients vs controls (Corbetta et al. 2003, Ekeblad et al. 2007), including one that also found no correlation of ghrelin level with cancer progression (Corbetta et al. 2003) (Table 1).