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2K‐1C Hypertensive Rats Treated With Tempol Show Decreased MMP‐2 Activity Possibly Due To Oxidative Stress Blockage

Hypertensive structural and functional modifications are associated with increased MMP‐2 activity and reactive oxygen species (ROS). ROS can induce post‐translational modifications in proteins, such as nitrosylation, that are known to affect anzyme activity. ROS can also directly activate MMPs. This study examined whether the treatment with Tempol prevents raised systolic blood pressure (SBP) and the following biochemical findings of hypertensive heart tissue: ROS activity, total gelatinolytic activity, MMP‐2 activity, and presence of nitrotyrosine residues.