Fig. 5.
TTP of the Ca2+ transient in WKY rats versus SHRs and the relationship between T-tubule organization, TTP of the Ca2+ transient, and Ca2+ transient duration in SHRs. A–D: event histograms of TTP for 7- and 17-mo-old WKY rats and for 8- and 17-mo-old SHRs. E: relationship between mean OI and TTP in SHR hearts (n = 13). F: relationship between OI SD and TTP in SHR hearts (n = 13). G: relationship between OI SD and Ca2+ transient duration (TD80 SD) in SHR hearts (n = 15).