Table 1.

Systolic blood pressure changes in Wistar rats after chronic administration of 7-NI and L-NAME

	Young rats			Adult rats
	Control (mmHg)	7-NI (mmHg)	L-NAME (mmHg)	Control (mmHg)	7-NI (mmHg)	L-NAME (mmHg)
1.week	102 ± 3	105 ± 3	107 ± 7	113 ± 5	114 ± 4	111 ± 4
3.week	106 ± 3	106 ± 2	120 ± 5**	114 ± 3	114 ± 3	163 ± 6**
6.week	115 ± 3	122 ± 6	139 ± 7**	110 ± 4	112 ± 9	166 ± 4**

Data represent mean ± std. dev., **P < 0.01; L-NAME, 7-NI vs. control