“…The role of L-glutamate signaling through mGlu receptors in the context of peripheral sensory cellsi.e., visual, taste, and pain sensory cells-has been previously extensively reviewed (Karim et al, 2001;Neugebauer and Carlton, 2002;Bigiani, 2005;Connaughton, 2005;Shigemura et al, 2009;Yasumatsu et al, 2009). The following sections summarize more recent evidence for a role of mGlu receptors in regulation of sensory organ function and its pharmacological manipulation.…”