Table 3.

Effect of 2 h of CO (10⁻⁶ M) application on pial arteriolar diameter responses to SNP

	SNP Concentration
CO Duration	0 M	10−7 M	3 × 10−7 M
0 min	66 ± 5	74 ± 6*	85 ± 7*
120 min of CO	59 ± 5	67 ± 5*	77 ± 6*
CO off	67 ± 5	74 ± 6*	84 ± 7*

Values are means ± SE (diameters; in μm); n = 4 piglets. SNP, sodium nitroprusside.

^*P < 0.05 compared with no SNP.