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. 2008 Dec 17;117(4):611–616. doi: 10.1289/ehp.0800235

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Effect of DEP (100 μg/mL; solid symbols) or vehicle control (open symbols) in the presence (circles) or absence (squares) of SOD (100 U/mL) on contraction and relaxation induced by PE (A and B), ACh (C), SNP (D), DEA/NO (E), and verapamil (F). Vessels were precontracted with EC₈₀ PE (0.3–1 μM). Data are mean ± SE (n = 6–8 for all).

Two-way repeated-measures ANOVA: ***p < 0.001 (ns, not significant), control versus DEP; ^††p < 0.01, and ^†††p < 0.001 (NS, not significant), DEP versus DEP + SOD.