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Nitric oxide (NO) and Reactive Oxygen Species (ROS) in serum samples obtained 35 days after surgery. (A) ROS level evaluated by analyzing Thiobarbituric acid reactive substances (TBARS) (B) NO production quantified by using an ozone chemiluminescence-based assay. A reduction of NO levels was detected in stroke animals (p < 0.002). Values represent mean ± SEM. ** p < 0.01.
