Current Hypertension Reports

, Volume 2, Issue 1, pp 98–105 | Cite as

Oxidative stress and vascular damage in hypertension

  • Rhian M. Touyz


Metabolism of oxygen by cells generates potentially deleterious reactive oxygen species, including superoxide anion radical, hydrogen peroxide, and hydroxyl radical. Under normal physiologic conditions the rate and magnitude o oxidant formation is balanced by the rate of oxidant elimination. However, an imbalance between prooxidants and antioxidants results in oxidative stress, which is the pathogenic outcome of the overproduction of oxidants that overwhelms the cellular antioxidant capacity. There is increasing evidence that an elevation of oxidative stress and associated oxidative damages are mediators of vascular injury in various cardiovascular pathologies, including hypertension, atherosclerosis, and ischemia-reperfusion. This review focuses on the vascular effects of reactive oxygen species and the role of oxidative stress in vascular damage in hypertension.


Reactive Oxygen Species Vascular Smooth Muscle Cell NADPH Oxidase Vascular Damage Human Vascular Smooth Muscle Cell 
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Copyright information

© Current science inc 2000

Authors and Affiliations

  • Rhian M. Touyz
    • 1
  1. 1.MRC Multidisciplinary Research Group on HypertensionClinical Research Institute of MontrealMontrealCanada

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