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Cytosolic Ca2+ increase induced by P2Y and P2X receptor activation is blocked by their antagonist in precursors from the hOE. Cell perfusion with RB2 (P2Y receptors antagonist) blocked 90% of the ATP response (n = 5) (a), whereas PPADS (P2X receptors antagonist) blocked only 10% (n = 5) (b). Data represent the media ± SEM and were compared by a Student t test. ∗p < 0.05.
