ATP increases intracellular calcium in supraoptic neurons by activation of both P2X and P2Y purinergic receptors.
Song Z, Vijayaraghavan S, Sladek CD. ATP increases intracellular calcium in supraoptic neurons by activation of both P2X and P2Y purinergic receptors. Am J Physiol Regul Integr Comp Physiol. 2007 Jan; 292(1):R423-31.