Biomaterial Database

Hepatotoxicity of heated and oxygenated corn oil. 1992

Y Shibayama

Department of Pathology, Osaka Medical College, Japan.

The present study was undertaken in rats to examine the hepatotoxicity of ingested heated and oxygenated corn oil. Activities of serum glutamic pyruvic transaminase markedly increased in the rats given heated and oxygenated corn oil for two weeks as compared with that of the control group. In the rats given heated and oxygenated corn oil, small fat droplets were found in the liver cells, but liver cell necrosis was not seen. Ultrastructurally, there was no conspicuous change in the liver cells, except for depletion of glycogen and dilatation of cisternae of rough and smooth surfaced endoplasmic reticulum. These experimental data show that ingestion of heated and oxygenated corn oil induces hepatic injury, and that the development of hepatic injury may relate to liver cell membrane damage due to active oxygen radicals contained in heated and oxygenated corn oil.

UI	MeSH Term	Description	Entries
D008054	Lipid Peroxides	Peroxides produced in the presence of a free radical by the oxidation of unsaturated fatty acids in the cell in the presence of molecular oxygen. The formation of lipid peroxides results in the destruction of the original lipid leading to the loss of integrity of the membranes. They therefore cause a variety of toxic effects in vivo and their formation is considered a pathological process in biological systems. Their formation can be inhibited by antioxidants, such as vitamin E, structural separation or low oxygen tension.	Fatty Acid Hydroperoxide,Lipid Peroxide,Lipoperoxide,Fatty Acid Hydroperoxides,Lipid Hydroperoxide,Lipoperoxides,Acid Hydroperoxide, Fatty,Acid Hydroperoxides, Fatty,Hydroperoxide, Fatty Acid,Hydroperoxide, Lipid,Hydroperoxides, Fatty Acid,Peroxide, Lipid,Peroxides, Lipid
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
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D009929	Organ Size	The measurement of an organ in volume, mass, or heaviness.	Organ Volume,Organ Weight,Size, Organ,Weight, Organ
D010100	Oxygen	An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.	Dioxygen,Oxygen-16,Oxygen 16
D001835	Body Weight	The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms.	Body Weights,Weight, Body,Weights, Body
D003314	Corn Oil	Oil from ZEA MAYS or corn plant.	Maize Oil,Lipomul,Corn Oils,Lipomuls,Maize Oils,Oil, Corn,Oil, Maize,Oils, Corn,Oils, Maize
D006358	Hot Temperature	Presence of warmth or heat or a temperature notably higher than an accustomed norm.	Heat,Hot Temperatures,Temperature, Hot,Temperatures, Hot
D000410	Alanine Transaminase	An enzyme that catalyzes the conversion of L-alanine and 2-oxoglutarate to pyruvate and L-glutamate. (From Enzyme Nomenclature, 1992) EC 2.6.1.2.	Alanine Aminotransferase,Glutamic-Pyruvic Transaminase,SGPT,Alanine-2-Oxoglutarate Aminotransferase,Glutamic-Alanine Transaminase,Alanine 2 Oxoglutarate Aminotransferase,Aminotransferase, Alanine,Aminotransferase, Alanine-2-Oxoglutarate,Glutamic Alanine Transaminase,Glutamic Pyruvic Transaminase,Transaminase, Alanine,Transaminase, Glutamic-Alanine,Transaminase, Glutamic-Pyruvic