Evaluation of (13C)ethanol incorporation into very-low-density lipoprotein triglycerides using gas chromatography/isotope ratio mass spectrometry coupling
| Autor: | M. J. Royer, J. Koziet, G. Debry, P. Gross |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
chemistry.chemical_classification
Carbon Isotopes Very low-density lipoprotein Chromatography Ethanol Triglyceride Fatty acid Alcohol Lipoproteins VLDL Biochemistry Gas Chromatography-Mass Spectrometry Palmitic acid chemistry.chemical_compound chemistry Humans Molecular Medicine Gas chromatography Isotope-ratio mass spectrometry Gas chromatography–mass spectrometry Triglycerides Spectroscopy |
| Zdroj: | Biological Mass Spectrometry. 20:777-782 |
| ISSN: | 1096-9888 1052-9306 |
| DOI: | 10.1002/bms.1200201206 |
| Popis: | Gas chromatography/isotope ratio mass spectrometry (GC/IRMS) coupling was used to evaluate (13C)ethanol incorporation into plasmatic very-low-density lipoprotein (VLDL) triglycerides of three healthy human volunteers. After the perfusion of 13C-enriched alcohol, VLDL triglyceride fractions were extracted from plasma samples and prepared for the analysis of (13C)fatty acid methyl esters. The GC/IRMS coupling line, the analytical procedure and the data collection are described. The results show that ethanol itself may be used as a substrate for lipogenesis, though to a small extent: less than 10% of VLDL triglycerides may be derived from this metabolic pathway. Ethanol incorporates predominantly into myristic and palmitic acid. The small amount of sample material required for analysis, which minimizes the amount of isotope-labelled substrate required, makes this technique a valuable tool for metabolic investigations in human subjects. |
| Databáze: | OpenAIRE |
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