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Superoxide dismutase (SOD (a)), total nitric oxide (NO (b)) levels in plasma, following intratracheal instillation of saline or polyethylene glycol silver nanoparticles (PEG-AgNPs) in normotensive (NT) or hypertensive (HT) mice. Data are the mean ± SEM (n = 6–8 in each group). Statistical analysis by one-way ANOVA followed by Holm-Sidak's multiple comparison test.
