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Related Experiment Videos

Tissue ascorbate as a metabolic marker in cadmium toxicity.

K Pharikal1, P C Das, C D Dey

  • 1Department of Physiology, Calcutta University Colleges of Science and Technology, India.

International Journal for Vitamin and Nutrition Research. Internationale Zeitschrift Fur Vitamin- Und Ernahrungsforschung. Journal International De Vitaminologie Et De Nutrition
|January 1, 1988
PubMed
Summary

Cadmium chloride exposure in rats altered organ weights and significantly decreased ascorbic acid (AA) levels in most tissues. Protein restriction exacerbated these cadmium-induced changes, suggesting a link between AA levels and toxicity.

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Area of Science:

  • Toxicology
  • Biochemistry
  • Nutritional Science

Background:

  • Cadmium is a toxic heavy metal with known adverse health effects.
  • Ascorbic acid (vitamin C) is a vital antioxidant crucial for various physiological processes.
  • Dietary protein intake can influence the body's response to toxic substances.

Purpose of the Study:

  • To investigate the effects of cadmium chloride on organ weights and ascorbic acid concentrations in rats under normal and protein-restricted diets.
  • To explore the potential correlation between altered ascorbic acid levels and cadmium toxicity.

Main Methods:

  • Rats were administered daily subcutaneous injections of cadmium chloride for two weeks.
  • Organ weights and ascorbic acid concentrations in plasma and various tissues were measured.

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  • Comparisons were made between normal and protein-restricted dietary groups.

    • Main Results:

    • Cadmium chloride significantly increased liver, kidney, and adrenal wet weights, while decreasing pituitary, testis, and thyroid weights.
    • Ascorbic acid levels decreased significantly in plasma, liver, kidney, spleen, adrenal, pituitary, and brain.
    • Ascorbic acid levels increased in the testis and thyroid, with no change in the pancreas.
    • Protein restriction potentiated the alterations in ascorbic acid levels caused by cadmium.

    Conclusions:

    • Cadmium exposure induces significant changes in organ weights and disrupts ascorbic acid homeostasis across various tissues.
    • Protein restriction exacerbates cadmium's impact on ascorbic acid levels.
    • The observed alterations in tissue ascorbic acid concentrations may correlate with the degree of cadmium toxicity.