“…However, the cellular mechanism(s) of these drugs' action is unclear. Among them, NPC-14686 (Fmoc-l-homophenylalanine) has been commercialized and has been shown to prevent gastric mucosal lesions after compound 48 / 80 injection into rats (Ohta et al, 1999), and to increase intracellular free Ca 2+ levels ([Ca 2+ ] i ) in human hepatoma cells (Jan et al, 2003) and canine renal tubular cells (Jan et al, 2000). However, the underlying mechanisms of NPC-14686's effects are unclear.…”