Biomaterial Database

[Morphologic studies on the toxicity of sulfated and nonsulfated lithocholic acid in the isolation-perfused rat liver]. 1977

U Leuschner, and P Czygan, and M Liersch, and W Fröhling, and A Stiehl

The isolated liver of male Sprague-Dawley rats was perfused by means of media containing lithocholic acid, taurolithocholic acid, lithocholic acid sulfate and taurolithocholic acid sulfate. 150 minutes later the tissue was being examined light- and electrone microscopically. After LC and TLC perfusion considerable alterations were found in the bile capillaries, in the ergastoplasm and minor ones in mitochondria. After perfusion with sulfate esters the tissue was unchanged. Our investigations have shown that sulfation provides a highly effective mechanism of detoxication in rats; but detoxication results not only in a decrease of reabsorption of excreted lithocholic acid sulfate esters but sulfation tenders the very lithocholic acid untoxic for the liver cell. The primary point of action of lithocholic acid seems to be the lipoprotein membrane.

UI	MeSH Term	Description	Entries
D008074	Lipoproteins	Lipid-protein complexes involved in the transportation and metabolism of lipids in the body. They are spherical particles consisting of a hydrophobic core of TRIGLYCERIDES and CHOLESTEROL ESTERS surrounded by a layer of hydrophilic free CHOLESTEROL; PHOSPHOLIPIDS; and APOLIPOPROTEINS. Lipoproteins are classified by their varying buoyant density and sizes.	Circulating Lipoproteins,Lipoprotein,Lipoproteins, Circulating
D008095	Lithocholic Acid	A bile acid formed from chenodeoxycholate by bacterial action, usually conjugated with glycine or taurine. It acts as a detergent to solubilize fats for absorption and is itself absorbed. It is used as cholagogue and choleretic.	Lithocholate,Isolithocholic Acid,Acid, Isolithocholic,Acid, Lithocholic
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
D008930	Mitochondria, Liver	Mitochondria in hepatocytes. As in all mitochondria, there are an outer membrane and an inner membrane, together creating two separate mitochondrial compartments: the internal matrix space and a much narrower intermembrane space. In the liver mitochondrion, an estimated 67% of the total mitochondrial proteins is located in the matrix. (From Alberts et al., Molecular Biology of the Cell, 2d ed, p343-4)	Liver Mitochondria,Liver Mitochondrion,Mitochondrion, Liver
D010477	Perfusion	Treatment process involving the injection of fluid into an organ or tissue.	Perfusions
D002793	Cholic Acids	The 3 alpha,7 alpha,12 alpha-trihydroxy-5 beta-cholanic acid family of bile acids in man, usually conjugated with glycine or taurine. They act as detergents to solubilize fats for intestinal absorption, are reabsorbed by the small intestine, and are used as cholagogues and choleretics.	Cholalic Acids,Acids, Cholalic,Acids, Cholic
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
D013431	Sulfates	Inorganic salts of sulfuric acid.	Sulfate,Sulfates, Inorganic,Inorganic Sulfates