Table 3. Average cells AP induced Ca²⁺ parameters in control (CON) and following introduction of H-89 (0.5 µmol/L; n = 6), *p<0.05 vs. drug control.

	CON	W-7	% Change
Peak Systolic Ca2+ (nmol/L)	305±20	297±6*	−15±5*
Minimum diastolic Ca2+ (nmol/L)	118±20	127±4	−3±4
Ca2+ amplitude (systolic-diastolic) (nmol/L)	217±14	170±26*	−24±9*
T-Pc (ms)	80±13	82±11	5±9
T-50c (ms)	157±27	191±16*	12±6
T-90c (ms)	282±22	344±15*	13±4*
Beats per min	139±2	93±4*	−33±6*