| Effect of essential fatty acid deficiency on the lipid composition of the Yoshida ascites hepatoma (AH 130) and of the liver and blood plasma from host and normal rats. | |
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MedLine Citation:
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PMID: 184222 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In order to study the response of a poorly differentiated tumor to nutritional manipulation, the Yoshida ascites hepatoma (AH 130) was grown in rats fed an essential fatty acid (EFA)-deficient diet and in rats fed a control diet. Hepatomas, livers, and blood plasma from host rats and normal rats were studied as to the effects of EFA deficiency on the lipid composition. Normal rats fed an EFA-deficient diet showed an increased concentration of triglycerides and cholesteryl esters in the liver and a reduced level of total phospholipids in plasma. Host rats fed the EFA-deficient diet showed a lower concentration of triglycerides in the liver when compared with the host rats fed a control diet. In addition, EFA-deficient host rats had reduced levels of plasma free fatty acids and triglycerides. These latter were markedly high in host rats under normal dietetic conditions. As compared to the livers of either host rats or normal rats fed the control diet, the Yoshida hepatoma cells had a lower content of total phospholipids and free fatty acids as well as a higher level of free cholesterol; they also showed a typical fatty acid pattern in their phospholipids. The main characteristics of this pattern were a high content of oleic and palmitoleic acids and a low level of C20 and C22 polyunsaturated fatty acids. Exposure of Yoshida hepatoma cells to an EFA-deficient environment resulted in a decrease in the concentration of total phospholipids and free fatty acids and in changes in the fatty acid composition similar to those observed in the livers of normal and host rats. These changes suggest that, under the experimental conditions used, the Yoshida hepatoma cells are responsive to EFA deficiency. |
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Authors:
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S Ruggieri; A Fallani; D Tombaccini |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of lipid research Volume: 17 ISSN: 0022-2275 ISO Abbreviation: J. Lipid Res. Publication Date: 1976 Sep |
Date Detail:
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Created Date: 1976-12-01 Completed Date: 1976-12-01 Revised Date: 2005-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0376606 Medline TA: J Lipid Res Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 456-66 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Carcinoma, Hepatocellular / metabolism* Chromatography, Gas Dietary Fats Fatty Acids, Essential / deficiency*, pharmacology Fatty Acids, Nonesterified / metabolism Lipid Metabolism* Liver / drug effects, metabolism* Liver Neoplasms / metabolism* Male Neoplasms, Experimental / metabolism* Phospholipids / metabolism Rats Triglycerides / metabolism |
| Chemical | |
Reg. No./Substance:
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0/Dietary Fats; 0/Fatty Acids, Essential; 0/Fatty Acids, Nonesterified; 0/Phospholipids; 0/Triglycerides |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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