Superoxide dismutase derivative preve in liver and kidney of rats induced by E

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59 Citations (Scopus)

Abstract

To prevent oxidative tissue damage induced by strenuous exercise in the liver and kidney superoxide dismutase derivative (SM-SOD), which circulated bound to albumin with a half-life of 6 h, was injected intraperitoneally into rats. Exhausting treadmill running caused a significant increase in the activities of xanthine oxidase (XO), and glutathione peroxidase (GPX) in addition to concentrations of thiobarbituric acid-reactive substances (TEARS) in hepatic tissue immediately after running. There was a definite increase in the immunoreactive content of mitochondrial superoxide dismutase (Mn-SOD) 1 day after the running. Meanwhile, the TEARS concentration in the kidney was markedly elevated 3 days after running. The activities of GPX, and catalase in the kidney increased significantly immediately and on days 1 and 3 following the test. The immunoreactive content of Mn-SOD also increased 1 day after running. The exercise induced no significant changes in immunoreactive Cu, Zn-SOD content in either tissue. The administration of SM-SOD provided effective protection against lipid peroxidation, and significantly attenuated the alterations in XO and all the anti-oxidant enzymes, measured. In summary, the present data would suggest that exhausting exercise may induce XO-derived oxidative damage in the liver, while the increase in lipid peroxidation in the kidney might be the result of washout-dependent accumulation of peroxidised metabolites. We found that the administration of SM-SOD provided excellent protection against exercise-induced oxidative stress in both liver and kidney.

Original languageEnglish
Pages (from-to)189-194
Number of pages6
JournalEuropean Journal of Applied Physiology and Occupational Physiology
Volume72
Issue number3
Publication statusPublished - 1996 Dec 1
Externally publishedYes

Keywords

  • Exercise
  • Lipid peroxidation
  • Liver/kidney
  • Oxidative stress
  • Superoxide dismutase derivative

ASJC Scopus subject areas

  • Physiology
  • Public Health, Environmental and Occupational Health

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