Post-training intrahippocampal infusion of nicotine prevents spatial memory retention deficits induced by the cyclo-oxygenase-2-specific inhibitor celecoxib in rats. - Sharifzadeh,M.; Tavasoli,M.; Naghdi,N.; Ghanbari,A.; Amini,M.; Roghani,A. (J Neurochem, 2005)