Biomaterial Database

Enhancement of fatty acyl-CoA oxidizing activity in rat liver peroxisomes by di-(i-ethylhexyl)phthalate. 1978

T Osumi, and T Hashimoto

The effect of di-(2-ethylhexyl)phthalate (DEHP) administration on cyanide-insensitive palmitoyl-CoA oxidizing activity in liver was studied. Two weeks of DEHP treatment increased the activity by one order of magnitude in male Wistar rats. A similar effect was also observed in male and female Sprague-Dawley rats and mice, but not in guinea pigs. When the liver was fractionated by differential centrifugation, the activity was concentrated in the light mitochondrial fraction. On the subfractionation of this fraction by sucrose density gradient centrifugation, the activity was distributed in a pattern similar to that of urate oxidase, but not resembling that of glutamate dehydrogenase. These data suggest that a fatty acyl-CoA oxidizing enzyme system which is located in peroxisomes is induced by the administration of DEHP.

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
D008830	Microbodies	Electron-dense cytoplasmic particles bounded by a single membrane, such as PEROXISOMES; GLYOXYSOMES; and glycosomes.	Glycosomes,Glycosome,Microbody
D010084	Oxidation-Reduction	A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471).	Redox,Oxidation Reduction
D010171	Palmitoyl Coenzyme A	A fatty acid coenzyme derivative which plays a key role in fatty acid oxidation and biosynthesis.	Palmitoyl CoA,Hexadecanoyl CoA,Palmityl CoA,CoA, Hexadecanoyl,CoA, Palmitoyl,CoA, Palmityl,Coenzyme A, Palmitoyl
D010795	Phthalic Acids	A group of compounds that has the general structure of a dicarboxylic acid-substituted benzene ring. The ortho-isomer is used in dye manufacture. (Dorland, 28th ed)	Acids, Phthalic
D002458	Cell Fractionation	Techniques to partition various components of the cell into SUBCELLULAR FRACTIONS.	Cell Fractionations,Fractionation, Cell,Fractionations, Cell
D004051	Diethylhexyl Phthalate	An ester of phthalic acid. It appears as a light-colored, odorless liquid and is used as a plasticizer for many resins and elastomers.	Dioctyl Phthalate,Bis(2-ethylhexyl)phthalate,DEHP,Di(2-ethylhexyl)phthalate,Di-2-Ethylhexylphthalate,Di 2 Ethylhexylphthalate,Phthalate, Diethylhexyl,Phthalate, Dioctyl
D004790	Enzyme Induction	An increase in the rate of synthesis of an enzyme due to the presence of an inducer which acts to derepress the gene responsible for enzyme synthesis.	Induction, Enzyme
D005260	Female		Females