TABLE 1.

Summary of the effects of electrical stimulation on cell shortening and magnitude of [Ca²⁺]_i transients

Maximal amplitude of cell shortening and of [Ca²⁺]_i transients were derived as described in the legend to Fig. 3 and under “Experimental Procedures.” The results are reported as %RL for cell shortening and F/F₀ for [Ca²⁺]_i transients. The data are presented as the means ± S.E. for control (n = 22), wtPKD (n = 21), and caPKD (n = 40), where n equals the number of cells analyzed.

	Control		wtPKD		caPKD
	%RL	F/F0	%RL	F/F0	%RL	F/F0
Initial	12.22 ± 0.78	2.00 ± 0.13	12.14 ± 1.17	1.90 ± 0.18	9.98 ± 0.61a	2.03 ± 0.11
Steady-state	5.08 ± 0.59	1.65 ± 0.08	5.85 ± 0.73	1.62 ± 0.14	1.49 ± 0.18b,c	1.52 ± 0.07

^a Significantly different from initial control %RL values (p < 0.05).

^b Significantly different from steady-state control %RL values (p < 0.05).

^c Significantly different from steady-state wtPKD %RL values (p < 0.05).