| pubmed-article:9359405 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:9359405 | lifeskim:mentions | umls-concept:C0034721 | lld:lifeskim |
| pubmed-article:9359405 | lifeskim:mentions | umls-concept:C0034693 | lld:lifeskim |
| pubmed-article:9359405 | lifeskim:mentions | umls-concept:C0227525 | lld:lifeskim |
| pubmed-article:9359405 | lifeskim:mentions | umls-concept:C0025519 | lld:lifeskim |
| pubmed-article:9359405 | lifeskim:mentions | umls-concept:C0031676 | lld:lifeskim |
| pubmed-article:9359405 | lifeskim:mentions | umls-concept:C0178719 | lld:lifeskim |
| pubmed-article:9359405 | lifeskim:mentions | umls-concept:C0036002 | lld:lifeskim |
| pubmed-article:9359405 | lifeskim:mentions | umls-concept:C0205409 | lld:lifeskim |
| pubmed-article:9359405 | lifeskim:mentions | umls-concept:C0025723 | lld:lifeskim |
| pubmed-article:9359405 | lifeskim:mentions | umls-concept:C0243144 | lld:lifeskim |
| pubmed-article:9359405 | lifeskim:mentions | umls-concept:C0038960 | lld:lifeskim |
| pubmed-article:9359405 | lifeskim:mentions | umls-concept:C0205228 | lld:lifeskim |
| pubmed-article:9359405 | pubmed:dateCreated | 1997-12-8 | lld:pubmed |
| pubmed-article:9359405 | pubmed:abstractText | Administration of S-adenosylmethionine (AdoMet), the main biological methyl donor, has been shown to exert favourable effects on liver disorders in man and animal models. The mechanism of action of AdoMet has, however, remained elusive, mainly owing to controversies with respect to its capacity to enter intact liver cells. Incubation of isolated rat hepatocytes with 2 or 50 microM -methyl-14C-AdoMet showed that it was utilized predominantly to methylate cellular phospholipids, forming mainly phosphatidylcholine, although less than 0.2% of labelled AdoMet was found inside the cells. The concentration of neither AdoMet nor S-adenosylhomocysteine (AdoHcy), its demethylation product, was significantly elevated inside the cells. A slight elevation of intracellular AdoMet was only recorded on incubation with concentrations of AdoMet above 200 microM. AdoHcy, which does not penetrate cells, inhibited phospholipid methylation from [methyl-14C]AdoMet but not from [methyl-14C]Met. Elevation of intracellular AdoHcy by adenosine dialdehyde, an inhibitor of AdoHcy hydrolase, inhibited phospholipid methylation from [methyl-14C]Met, but virtually not at all from [methyl-14C]AdoMet. Taken together, these data indicate that exogenous AdoMet does not penetrate hepatocytes significantly but is utilized for phospholipid methylation on the outer surface of the plasma membrane. | lld:pubmed |
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| pubmed-article:9359405 | pubmed:language | eng | lld:pubmed |
| pubmed-article:9359405 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:9359405 | pubmed:citationSubset | IM | lld:pubmed |
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| pubmed-article:9359405 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:9359405 | pubmed:month | Oct | lld:pubmed |
| pubmed-article:9359405 | pubmed:issn | 0264-6021 | lld:pubmed |
| pubmed-article:9359405 | pubmed:author | pubmed-author:Van Den... | lld:pubmed |
| pubmed-article:9359405 | pubmed:author | pubmed-author:BontempsFF | lld:pubmed |
| pubmed-article:9359405 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:9359405 | pubmed:day | 15 | lld:pubmed |
| pubmed-article:9359405 | pubmed:volume | 327 ( Pt 2) | lld:pubmed |
| pubmed-article:9359405 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:9359405 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:9359405 | pubmed:pagination | 383-9 | lld:pubmed |
| pubmed-article:9359405 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
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| pubmed-article:9359405 | pubmed:year | 1997 | lld:pubmed |
| pubmed-article:9359405 | pubmed:articleTitle | Metabolism of exogenous S-adenosylmethionine in isolated rat hepatocyte suspensions: methylation of plasma-membrane phospholipids without intracellular uptake. | lld:pubmed |
| pubmed-article:9359405 | pubmed:affiliation | Laboratory of Physiological Chemistry, International Institute of Cellular and Molecular Pathology and University of Louvain Medical School, Avenue Hippocrate 75, B-1200 Brussels, Belgium. | lld:pubmed |
| pubmed-article:9359405 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:9359405 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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