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: Levels of cellular glutathione and metallothionein affect the toxicity of oxidative stressors in an established carp cell line.
    Author: Wright J, George S, Martinez-Lara E, Carpene E, Kindt M.
    Journal: Mar Environ Res; 2000; 50(1-5):503-8. PubMed ID: 11460739.
    Abstract:
    The comparative toxicity of a variety of oxidative stressors was studied in the epithelioma papulosum cyprini line from carp using the neutral red cytotoxicity assay. LC50's decreased in the order t-butylhydroperoxide > hydrogen peroxide > diquat > paraquat. The cytotoxicity of hydrogen peroxide was significantly reduced when the cells were grown in L-15 medium rather than MEM and this could be attributed to elevated cellular glutathione and metallothionein levels and higher activities of GSH-dependent detoxification systems. The protective effect of metallothionein in radical scavenging was demonstrated by decreased toxicity of the redox-cycling toxicants, diquat and menadione after metallothionein levels had been pre-induced by Cd-exposure. This study demonstrates the relationship between toxic effects of oxidative stressors and expression of detoxification systems in fish.
    [Abstract] [Full Text] [Related] [New Search]