from these results , i suggest that in rat thymocytes t3 influences cellular calcium economy through a biphasic mechanism in which t3 first increases calcium uptake which , in turn , is followed by a release of calcium from intracellular pool ( s ) , resulting in a further increase in cytoplasmic free calcium concentration and the activation of ca2+ -regulated systems .
C0007634
cellular
C0010834
cytoplasmic