Effects of Water Cadmium Concentrations on Bioaccumulation and Various Oxidative Stress Parameters in Rhamdia quelen

  • Alexandra Pretto
  • Vania Lucia Loro
  • Bernardo Baldisserotto
  • Maria Amália Pavanato
  • Bibiana Silveira Moraes
  • Charlene Menezes
  • Roberta Cattaneo
  • Bárbara Clasen
  • Isabela Andres Finamor
  • Valderi Dressler
Article

DOI: 10.1007/s00244-010-9586-2

Cite this article as:
Pretto, A., Loro, V.L., Baldisserotto, B. et al. Arch Environ Contam Toxicol (2011) 60: 309. doi:10.1007/s00244-010-9586-2

Abstract

The effects of sublethal cadmium concentrations on oxidative stress parameters were evaluated in Rhamdia quelen. The fish were exposed to 0.44, 236, and 414 μg l−1 cadmium for 7 and 14 days, followed by the same time periods for recovery. Enzymes, such as catalase (CAT), superoxide dismutase (SOD), and glutathione S-transferase (GST), and indicators of oxidative stress, such as thiobarbituric acid-reactive species (TBARS) and protein carbonyl, were verified in fish tissues. In addition, the accumulation of cadmium was evaluated in these tissues. Our results indicate that CAT and GST levels decreased in gills after exposure periods associated with increased TBARS levels. In hepatic tissue, CAT, GST, TBARS, and protein carbonyl levels increased after 7 days of exposure, whereas SOD activity decreased after exposure for 14 days. In the kidney, TBARS levels decreased after exposure for 7 days and increased after exposure for 14 days. During the recovery periods, some variations persisted in gills, liver, and kidney. Cadmium accumulation was most significant in liver, followed by kidney and gills. These results indicate that cadmium concentrations studied invoke a stress response in silver catfish.

Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Alexandra Pretto
    • 1
  • Vania Lucia Loro
    • 1
    • 2
  • Bernardo Baldisserotto
    • 2
  • Maria Amália Pavanato
    • 2
  • Bibiana Silveira Moraes
    • 1
  • Charlene Menezes
    • 1
  • Roberta Cattaneo
    • 1
  • Bárbara Clasen
    • 1
  • Isabela Andres Finamor
    • 2
  • Valderi Dressler
    • 3
  1. 1.Adaptive Laboratory of Biochemistry, Department of ChemistryUniversity of Santa MariaSanta MariaBrazil
  2. 2.Department of Physiology and PharmacologyUniversity of Santa MariaSanta MariaBrazil
  3. 3.Department of ChemistryUniversity of Santa MariaSanta MariaBrazil

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