Protein Kinase C (PKC) activity in hearts of Experimental Series 1. PKC activity was measured using non-radioactive PepTag® assay and is expressed as Mean ± SEM of a ratio of fluorescence intensity of phosphorylated and non-phosphorylated PepTag® C1 peptide (Panel B) which is proportional to the PKC activity. PKC activity was measured in Control (C, n = 10), Iso/Ade-0 (n = 9) and Iso/Ade-10 (n = 9) groups. Panel A – Representative image of the phosphorylated and non-phosphorylated PepTag® C1 peptide under UV light. ** P < 0.01 vs. Control.