Table 2.

Catalytic NOS activity in the gray matter regions (dorsal horn, intermediate zone, ventral horn) of the lumbosacral spinal cord segments (L4–S4) in control, after partial ischemia (13, 15 and 17 min) and 24 h after ischemic insult

Experimental groups	Gray matter regions
	Dorsal horn	Intermediate zone	Ventral horn
Control	50.42 ± 1.76	27.47 ± 0.90	23.58 ± 0.66
13′IS	52.25 ± 2.76	29.26 ± 1.03	23.01 ± 1.16
13′IS/24 h R	52.94 ± 1.22	24.01 ± 0.69	21.60 ± 0.90
15′IS	52.97 ± 0.81	27.80 ± 2.29	24.84 ± 1.48
15′IS/24 h R	54.35 ± 2.11	26.62 ± 0.86	27.90 ± 0.57*
17′IS	59.74 ± 0.98*	28.71 ± 0.66	26.66 ± 1.45
17′IS/24 h R	68.15 ± 2.03*	31.19 ± 0.69	27.20 ± 0.97*

The results from analyses were expressed as pmol/mg protein. The values were statistically evaluated by ANOVA and Tukey-Kramer test and have been given as means ± SEM. Data are the means of seven experiments (n = 7)

* P < 0.05 compared with control

IS ischemia, R reperfusion