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Figure 4 Effects of three days nitroglycerin (NTG) treatment on immunoreactivity for nitrotyrosine in vessels from control rabbits without (A) and with nitroglycerin treatment (B) and hyperlipidemic animals without (C) and with NTG treatment (D). Please note that NTG treatment of hyperlipidemic animals caused a marked increase in nitrotyrosine staining in the endothelium and the subendothelial space (brown staining).