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Related Experiment Videos

[Oxidative stress and vitamins].

S Kojo1, K Tanaka, S Tokumaru

  • 1Department of Food Science and Nutrition, Nara Women's University.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|December 14, 1999
PubMed
Summary

This study introduces sensitive methods to measure lipid hydroperoxides and vitamin C in animal tissues, revealing their roles in oxidative stress. These markers effectively indicate oxidative stress in various conditions, including aging and diabetes.

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Area of Science:

  • Biochemistry
  • Animal Physiology
  • Biomarkers

Context:

  • Oxidative stress is implicated in various physiological and pathological conditions.
  • Accurate measurement of key molecules is crucial for evaluating oxidative stress.
  • Existing methods may lack specificity or sensitivity.

Purpose:

  • To discuss the importance of specific determination of molecules involved in radical reactions for evaluating oxidative stress.
  • To present specific and sensitive methods for determining lipid hydroperoxides and tissue vitamin C.
  • To demonstrate the utility of these markers in various animal models.

Summary:

  • Lipid hydroperoxides serve as an effective index of oxidative stress, increasing in aged, vitamin-deficient, iron-overloaded, and diabetic rat tissues.
  • Tissue vitamin C levels were determined using a specific method, revealing its decrease in ODS rats.
  • The study demonstrated the in vivo interaction between vitamin C and vitamin E for the first time.

Impact:

  • Provides validated methods for assessing oxidative stress in animal models.
  • Highlights the role of oxidative stress in aging, vitamin deficiencies, diabetes mellitus, atherosclerosis, and cell death (necrosis and apoptosis).
  • Establishes a foundation for further research into antioxidant therapies and disease mechanisms.

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