Abstract
Purinergic receptors are the most plentiful ones in mammalian tissues and can be found in all kinds of cells, including the ones with neural origin. This class of receptors is subdivided in two subgroups, P1 receptors (activated by adenosine) and P2 receptors (activated by adenine and uridine nucleotides). The receptors of P2 type can be ionotropic (P2X) or metabotropic (P2Y). Such recept…