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Figure 3: Serum nitric oxide levels in Group 1 (sham), Group 2 (normoxia), and Group 3 (subchronic hypoxia pretreated) rats before (pre) left common carotid artery occlusion and 12 h after reperfusion (post). n = 6 rats in each group. Values with different superscripts (a and b) are significantly differ from each other (P < 0.05)

Figure 3: Serum nitric oxide levels in Group 1 (sham), Group 2 (normoxia), and Group 3 (subchronic hypoxia pretreated) rats before (pre) left common carotid artery occlusion and 12 h after reperfusion (post). <i>n</i> = 6 rats in each group. Values with different superscripts (a and b) are significantly differ from each other (<i>P</i> < 0.05)