Antioxidants attenuate oxidative damage in rat skeletal muscle during mild ischaemia

Exp Physiol. 2008 Apr;93(4):479-85. doi: 10.1113/expphysiol.2007.040972. Epub 2008 Jan 25.

Abstract

We have previously shown oxidative stress and oedema, caused by both xanthine oxidase-derived oxidants and infiltrating neutrophils, within skeletal muscle after contractile-induced claudication. The purpose of this study was to determine whether supplementation with antioxidant vitamins attenuates the oxidative stress, neutrophil infiltration and oedema associated with an acute bout of contractile-induced claudication. Rats received vehicle, vitamin C, vitamin E or vitamin C + E for 5 days prior to contractile-induced claudication. Force production was significantly reduced in the claudicant limbs of all groups compared with the control (sham) limb of control animals. Contractile-induced claudication caused a significant increase in protein oxidation, lipid peroxidation, neutrophil infiltration and oedema compared with sham muscles. Supplementation with vitamin C, E or C + E prevented the increases in each of these, and there were no differences between groups. These findings suggest that, in an animal model of exercise-induced claudication, neutrophil chemotaxis is caused by oxidizing species and that antioxidant supplementation can prevent oxidative damage, neutrophil infiltration and oedema following an acute bout of contractile-induced claudication.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antioxidants / pharmacology*
  • Antioxidants / therapeutic use
  • Ascorbic Acid / pharmacology*
  • Ascorbic Acid / therapeutic use
  • Disease Models, Animal
  • Edema / etiology
  • Edema / prevention & control
  • Electric Stimulation
  • Intermittent Claudication / drug therapy*
  • Intermittent Claudication / etiology
  • Intermittent Claudication / metabolism
  • Intermittent Claudication / pathology
  • Intermittent Claudication / physiopathology
  • Ischemia / complications*
  • Ischemia / drug therapy
  • Ischemia / metabolism
  • Ischemia / pathology
  • Ischemia / physiopathology
  • Lipid Peroxidation / drug effects
  • Male
  • Muscle Contraction
  • Muscle, Skeletal / blood supply
  • Muscle, Skeletal / drug effects*
  • Muscle, Skeletal / innervation
  • Muscle, Skeletal / metabolism
  • Muscle, Skeletal / pathology
  • Muscle, Skeletal / physiopathology
  • Neutrophil Infiltration / drug effects
  • Neutrophils / drug effects
  • Neutrophils / enzymology
  • Oxidative Stress / drug effects*
  • Peroxidase / metabolism
  • Protein Carbonylation / drug effects
  • Rats
  • Rats, Sprague-Dawley
  • Severity of Illness Index
  • Vitamin E / pharmacology*
  • Vitamin E / therapeutic use

Substances

  • Antioxidants
  • Vitamin E
  • Peroxidase
  • Ascorbic Acid