Application Notes:
This product is a high purity omega-hydroxy very long chain fatty acid that is ideal as a standard and for biological studies.
Omega-oxidation is a minor fatty acid pathway used for fatty acid metabolism and usually occurs in the smooth endoplasmic
reticulum. Eicosanoic acid is enzymaticaly converted to the 20-hydroxyeicosanoic acid as well as to the eicosadicarboxylic
acid as part of the omega-oxidation metabolic pathway. Stimulation of omega-hydroxylation has been proposed as a method
for treating X-linked adrenoleukodystrophy, a disease that is characterized by elevated levels of very long chain fatty acids.1
Omega-hydroxy fatty acids have an important role acylated to various lipids. Omega-hydroxylated very long chain fatty acid
(VLCFA) ceramides are vital to skin barrier functions and a deficiency of these lipids can cause death from water loss
through the skin. A mutation in an elongase enzyme for VLCFA results in a deficiency in omega-hydroxylated VLCFAceramides
which causes a muscular dystrophy disease, defective skin-water permeability barrier function, and neurological
disorders showing the importance of these VLCFA ceramides.2 Sphingolipids (such as sphingomyelin, ceramides, and
glucosylceramides) acylated with polyunsaturated and alpha- or omega-hydroxylated VLCFA have been found in the
spermatozoa/testes and in the epidermis. Sphingolipids with VLCFA may be responsible for the maturation of these cell.3
References:
1. R. Sanders et al. “Omega-Oxidation of Very Long-Chain Fatty Acids in Human Liver Microsomes: Implications for X-Linked Adrenoleukodystrophy”
Journal of Biological Chemistry, Vol. 281 pp. 13180-13187, 2006
2. W. Li “Depletion of ceramides with very long chain fatty acids causes defective skin permeability barrier function, and neonatal lethality in ELOVL4
deficient mice” Int J Biol Sci, Vol. 3 pp. 120-128, 2007
3. R. Sandhoff “Very long chain sphingolipids: Tissue expression, function and synthesis” FEBS Letters Vol. 584(9) pp. 1907-1913, 2010