These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Selenite and selenate effects on mercury (Hg(2+)) uptake and distribution in tilapia, Oreochromis niloticus L., assessed by chronic bioassay.
    Author: Carvalho GG, de França JG, Dias DC, Lombardi JV, de Paiva MJ, Carvalho S, Sarriés GA, Ferreira JR.
    Journal: Bull Environ Contam Toxicol; 2009 Mar; 82(3):300-4. PubMed ID: 19034371.
    Abstract:
    Aquatic organisms are considered excellent biomarkers of mercury (Hg) occurrence in the environment. Selenium (Se) acts in antagonism to this metal, stimulating its elimination, and reducing its toxicity. In this paper, tilapia (Oreochromis niloticus) were chronically acclimated in sub-lethal Hg(2+), Hg(2+) + Se(4+) and Hg(2+) + Se(6+) concentrations. Distribution and bioaccumulation of both elements were evaluated in fish tissues. The kidney was the main target of the Hg and Se uptake, and the presence of Hg induced the Se hepatic elimination. The Hg bioaccumulation in the gill, spleen and heart were higher in the presence of Se(6+) than in the presence of Se(4+).
    [Abstract] [Full Text] [Related] [New Search]