Table 3.

The effects i.v. injections of saline or L-NAME (25 µmol/kg) on resting cardiovascular parameters of conscious rat

	Saline			L-NAME
Parameter	Pre	Post	Δ (%Change)	Pre	Post	Δ (%Change)
HR, beats/min	338 ± 14	342 ± 16	+1 ± 2	365 ± 8	262 ± 7	−28 ± 3*
MAP, mmHg	119 ± 5	120 ± 5	+1 ± 1	123 ± 8	150 ± 4	+24 ± 5*
HQF, kHz	4.2 ± 0.7	4.3 ± 0.8	+2 ± 4	4.9 ± 0.8	2.5 ± 0.6	−52 ± 7*
HQR, mmHg/kHz	31 ± 7	32 ± 8	+4 ± 6	+34 ± 9	96 ± 28	+191 ± 58*
RF, kHz	5.1 ± 0.9	4.9 ± 0.9	−4 ± 3	5.5 ± 2.4	3.3 ± 1.3	−45 ± 8*
RR, mmHg/kHz	46 ± 12	49 ± 10	+7 ± 8	70 ± 17	304 ± 122	+171 ± 42*
MF, kHz	7.3 ± 1.4	7.4 ± 1.5	+1 ± 5	8.5 ± 1.8	4.7 ± 0.8	−42 ± 4*
MR, mmHg/kHz	17 ± 5	17 ± 6	0 ± 6	19 ± 3	37 ± 6	+107 ± 15*

Each value represents the mean± SEM of the values from the saline-treated (n = 7) and L-NAME-treated (n = 7) rats.

^*P < 0.05, significant response.