Two thousand; Mazzocchi avec al. Late 2001; #links# Randeva et 's. Beginning of 2001). Other orexin-activated signaling walkways incorporate adenylyl cyclase (Hvac)/cyclic AMP, phospholipase D/phosphatidic acid (Philadelphia), phospholipase A2/arachidonic acid launch and also mitogen-activated proteins kinase (MAPK)/stress-activated necessary protein kinase (Holmqvist et al. August 2005; Magga ave