Biomaterial Database

Protective effects of antioxidants against benomyl-induced lipid peroxidation and glutathione depletion in rats. 1997

D Banks, and M R Soliman

College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee 32307, USA.

The present in vivo study was designed to examine the effects of the antioxidants, N,N-diphenyl-p-phenylenediamine (DPPD) and a 21-aminosteroid (U74389G), on methyl 1-(butylcarbamoyl)-2-benzimidazole-carbamate (benomyl)-induced lipid peroxidation and glutathione depletion in rats. Male Sprague Dawley rats weighing 200 250 g were used in this study and were fasted for 8 12 h before treatment. Benomyl (200 mg/kg/day in olive oil) was administered orally for 7 days to groups of untreated rats and to rats pretreated with two doses (15 mg/kg) of either DPPD or U74389G. Benomyl treatment resulted in a significant increase in serum hydroperoxides and a significant decline in hepatic reduced glutathione (GSH) levels. These results indicate that benomyl induces lipid peroxidation and glutathione depletion in rats. Benomyl-induced lipid peroxidation was blocked by DPPD pretreatment but was not significantly altered by U74389G. However, both antioxidants, DPPD and U74389G, were able to inhibit glutathione depletion induced by benomyl. The present findings indicate that the in vivo toxicity of benomyl may be associated with oxidative stress to cellular membranes and that some degree of protection against this toxicity could be afforded by antioxidants.

UI	MeSH Term	Description	Entries
D008099	Liver	A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances.	Livers
D008297	Male		Males
D010545	Peroxides	A group of compounds that contain a bivalent O-O group, i.e., the oxygen atoms are univalent. They can either be inorganic or organic in nature. Such compounds release atomic (nascent) oxygen readily. Thus they are strong oxidizing agents and fire hazards when in contact with combustible materials, especially under high-temperature conditions. The chief industrial uses of peroxides are as oxidizing agents, bleaching agents, and initiators of polymerization. (From Hawley's Condensed Chemical Dictionary, 11th ed)	Peroxide
D010655	Phenylenediamines	Aniline compounds that contain two amino groups. They are used as a precursor in the synthesis of HETEROCYCLIC COMPOUNDS and POLYMERS. p-Phenylenediamine is used in the manufacture of HAIR DYES and is an ALLERGEN.
D011281	Pregnatrienes	Pregnane derivatives containing three double bonds in the ring structures.
D004347	Drug Interactions	The action of a drug that may affect the activity, metabolism, or toxicity of another drug.	Drug Interaction,Interaction, Drug,Interactions, Drug
D005659	Fungicides, Industrial	Chemicals that kill or inhibit the growth of fungi in agricultural applications, on wood, plastics, or other materials, in swimming pools, etc.	Industrial Fungicides
D005978	Glutathione	A tripeptide with many roles in cells. It conjugates to drugs to make them more soluble for excretion, is a cofactor for some enzymes, is involved in protein disulfide bond rearrangement and reduces peroxides.	Reduced Glutathione,gamma-L-Glu-L-Cys-Gly,gamma-L-Glutamyl-L-Cysteinylglycine,Glutathione, Reduced,gamma L Glu L Cys Gly,gamma L Glutamyl L Cysteinylglycine
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000975	Antioxidants	Naturally occurring or synthetic substances that inhibit or retard oxidation reactions. They counteract the damaging effects of oxidation in animal tissues.	Anti-Oxidant,Antioxidant,Antioxidant Activity,Endogenous Antioxidant,Endogenous Antioxidants,Anti-Oxidant Effect,Anti-Oxidant Effects,Anti-Oxidants,Antioxidant Effect,Antioxidant Effects,Activity, Antioxidant,Anti Oxidant,Anti Oxidant Effect,Anti Oxidant Effects,Anti Oxidants,Antioxidant, Endogenous,Antioxidants, Endogenous