An improved method for quantification of very long chain fatty acids in plasma
โ Scribed by Hilary Vallance; Applegarth Derek
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 352 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0009-9120
No coin nor oath required. For personal study only.
โฆ Synopsis
Most peroxisomal disorders can be detected via analysis of very long chain fatty acids (VLCFA) and phytanic acid in plasma or serum. Previous methods utilizing gas-liquid chromatography (GLC) alone are time consuming and are hampered by interference from cholesterol derivatives. We describe here a GLC-mass spectrometry method for the simultaneous quantification of VLCFAs and phytanic acid. The method employs single ion monitoring with deuterated internal standards. We studied 38 normal controls and 12 patients with peroxisomal diseases and found complete discrimination between the two groups.
Comparison with other methodology is discussed. We believe this to be a practical and accurate method for the quantification of both VLCFAs and phytanic acid in serum or plasma. It should be useful for laboratories involved in the diagnosis of biochemical disorders,
๐ SIMILAR VOLUMES
## Abstract A method has been developed for calculating more accurate and reproducible equivalent chain length (ECL) values of 33 straightโchain fatty acids (FA), with various positions and numbers of __cis__ double bonds, chromatographed on DBโWax and DBโ1 columns. The dependence of ECL values on
The activity of fatty acid synthetase (FAS) from Vibrio sp. strain ABE-1 required the presence of acyl carrier protein and was completely inhibited by thiolactomycin, an inhibitor specific for a type II FAS. These observations indicate that this enzyme is a type II FAS. Analysis by gas-liquid chroma