Assertion: adp's role | /r/CapableOf | remain unclear
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text: However, because αβ-MeATP does not induce platelet shape change, aggregation, or phospholipase C activation and because desensitization of the P2X 1 receptor is without effect on ADP-induced aggregation, the physiological role of P2X 1 receptors on platelets remains unclear and would in fact seem to be discrete.1123