Evaluation of Antioxidant Activity and Potential Toxicity of 1-buthyltelurenyl-2-methylthioheptene.
From: Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil.
Life sciences
- Publish Date: Sep 2006
- ISSN: 0024-3205
- Volume: 79
- Issue: 16
- Pages: 1546-52
- Medium: Print
- Language: English
- Citation (JAMA): Savegnago Lucielli, Borges Vanessa C, Alves Diego, et al. Evaluation of Antioxidant Activity and Potential Toxicity of 1-buthyltelurenyl-2-methylthioheptene.. Life Sci. Sep 2006;79:1546-52
Abstract
The aim of the present study was to evaluate pharmacological and toxicological properties of 1-buthyltelurenyl-2-methylthioheptene (compound 1). In vitro, compound 1 at 1 microM was effective in reducing lipid peroxidation induced by Fe/EDTA. Compound 1 presented neither thiol peroxidase nor thiol oxidase activity and did not change delta-ALA-D (delta-aminolevulinate dehydratase) activity (10-400 microM). Calculated LD(50) of compound 1, administered by oral route, was 65.1 micromol/kg. Rats treated with compound 1 did not reveal any motor impairment in the open field. Hepatic, renal and cerebral lipid peroxidation in treated rats did not differ from those in control rats. Conversely, 0.5 micromol/kg of compound 1 decreased lipid peroxidation in spleen. Delta-ALA-D activity in liver and spleen was inhibited in rats treated with the higher dose of compound 1 but no significant differences were detected in renal delta-ALA-D activity. AST (aspartate aminotransferase) and ALT (alanine aminotransferase) activities as well as urea and creatinine levels were increased by high doses of compound 1 (50-75 micromol/kg). Compound 1 induced a significant decrease in plasma triglyceride levels but none of the doses tested changed the cholesterol level. This is a promising compound for more detailed pharmacological studies involving organotellurium compounds.
Mesh Headings (Keywords): Alanine Transaminase, Animals, Antioxidants, Aspartate Aminotransferases, Edetic Acid, Iron, Kidney, Lethal Dose 50, Lipid Peroxidation, Liver, Organometallic Compounds, Peroxidases, Porphobilinogen Synthase, Rats, Spleen, Tellurium, Triglycerides
Check for Full Text / PubMed Unique Identifier (PMID): 16716363
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