Table 2.

Full-width half-maximum (FWHM) values for Ca²⁺ transients obtained from regularly stimulated atrial myocytes under different conditions

Agents	No. of peaks	FWHM (ms, mean ± SEM)
Control	12	118 ± 7
0.1 μm FPL	12	117 ± 13
Nifedipine	12	114 ± 21
Caffeine 15 min	12	336 ± 38*
CPA 20 min	12	125 ± 11
Nifedipine + 0.1 μm FPL	12	123 ± 21
Nifedipine + 1.0 μm FPL	12	121 ± 17
Caffeine + 0.1 μm FPL	12	178 ± 15*
Caffeine + 1.0 μm FPL	12	185 ± 8*
CPA + 0.1 μm FPL	12	102 ± 14
CPA + 1.0 μm FPL	12	117 ± 8

CPA, cyclopiazonic acid.

^*P < 0.05 when tested against control.