Fig. 4. Summarized data depicting the effect of Na+removal (0 Na) or KB-R7943 (KBR; 5 μm) on sarcoplasmic reticulum (SR) Ca2+load ( A ) and t1/2[Ca2+]idecay (B ) in normal (N) and diabetic (D) cardiomyocytes. * P < 0.05 versus normal. # P < 0.05 versus control. † P < 0.05 versus propofol. ‡ P < 0.05 versus 0 Na. n = at least 8 cells from 3 different hearts for each group.