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Impact of cadmium on the level of hepatic metallothioneins, essential elements, and selected enzymes in the experimental rat model

Author

Listed:
  • J. Zídková

    (Faculty of Food and Biochemical Technology, Institute of Chemical Technology, Prague, Czech Republic)

  • M. Melčová

    (Faculty of Food and Biochemical Technology, Institute of Chemical Technology, Prague, Czech Republic)

  • K. Bartošová

    (Faculty of Food and Biochemical Technology, Institute of Chemical Technology, Prague, Czech Republic)

  • I. Šestáková

    (J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic)

  • V. Zídek

    (Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic)

  • J. Száková

    (Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • D. Miholová

    (Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • P. Tlustoš

    (Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

The response of different strains of laboratory rats (Rattus norvegicus L.) on both acute (via intraperitoneal injection) and chronic (via drinking water and/or diet) cadmium intoxication was investigated in the model study. The rat strains Long Evans (LE), Spontaneously hypertensive rat (SHR), and Brown Norway (BN) were tested and compared, and total Cd levels and metallothionein (MT) concentrations were determined in the liver of experimental animals. The liver MT concentrations were determined by using adsorptive chronopotentiometry and modified Brdička reaction and were significantly correlated (r = 0.965) with the total liver Cd content. Moreover, the Cd application resulted in increasing zinc liver contents confirming intensive MT synthesis in the rat liver. In the blood plasma, specific enzymatic activity of glutathione reductase (GR) and glutathione-S-transferase (GST) was determined suggesting increasing activity of GR with the amount of applied Cd for all three strains, whereas ambiguous results have been found for the activity of GST. Therefore, MT concentrations seemed to be more sensitive indicators of the Cd intoxication compared to the assessment of the specific enzymatic activity.

Suggested Citation

  • J. Zídková & M. Melčová & K. Bartošová & I. Šestáková & V. Zídek & J. Száková & D. Miholová & P. Tlustoš, 2014. "Impact of cadmium on the level of hepatic metallothioneins, essential elements, and selected enzymes in the experimental rat model," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 59(12), pages 548-556.
    • Handle: RePEc:caa:jnlcjs:v:59:y:2014:i:12:id:7794-cjas
    DOI: 10.17221/7794-CJAS
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    References listed on IDEAS

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    1. J. Száková & V. Zídek & D. Miholová, 2009. "Influence of elevated content of cadmium and arsenic in diet containing feeding yeast on organisms of rats," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 54(1), pages 1-9.
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