Fatty acids and plasmalogens
of the phospholipids of the sperm membranes and their relation with the post-thaw quality of stallion spermatozoa.
Peroxisomes are single-membrane-bounded ubiquitous organelles containing a hundred different enzymes that catalyze various metabolic pathways, including O-oxidation of very long-chain fatty acids, the synthesis of ether lipids such as plasmalogens, and bile-acid metabolism (1) (Table 1).
Two methods were developed for the isolation of mammalian somatic cell mutants defective in peroxisome biogenesis: (i) colony autoradiographic screening with a phenotypic marker, dihydroxyacetonephosphate acyltransferase (DHAP-ATase) deficiency; (28),(29) and (ii) the photo-sensitized selection method using 9(1,-pyrene)nonanol (P9OH) and an exposure to long wave-length ultraviolet (UV) light which kills wildtype cells incorporating P9OH as a fatty alcohol into plasmalogens and survive cell mutants deficient in such activity.
pLPE Self mLPA Self eLPA Self Oils Triacylglyceride Self Terpenes Squalene Self Diacylglycerolipids GalDAG B.
It mostly exists in the forms of phospholipids phosphatidylcholine (lecithin), lysophosphatidylcholine, choline plasmalogens
and sphingomyelin, and is widely distributed in all plant and animal cells (Zeisel, 1990).
As a result, plasmalogens
which are required for normal brain and skeletal formation are abnormal resulting in clinical manifestions RCDP1, RCDP2, and RCDP3 are characterized by rhizomelic shortening, mainly affecting the humerus, facial dysmorphism, seizures, cataracts, and joint contractures.
In the chromatograms obtained from base-catalyzed methylations, FFA peaks could be identified clearly in addition to FAME, whereas in the chromatogram obtained from the acid-catalyzed methylations, peaks related to acetals (originating from methanolization of the plasmalogens
contained in the samples) were identified, as confirmed by GC-MS analysis.
Their origin and how they transform, cholesterol, phospholipids, plasmalogens
, polyunsaturated fatty acids, sugars, and proteins into deleterious products.
Total fatty acids, plasmalogens
, and fatty acid composition of ethanolamine and choline phosphoglycerides.
In different aquatic ectothermal animals, it has also been reported that plasmalogens
increase in response to an elevation of temperature (Yeo et al.
The abundance of plasmalogens
in molluscs has been previously reported (Joseph 1982, Chapelle 1987, Kraffe et al.
Dimetylacetals (DMA) from PE plasmalogens
in the GC analyses were not identified.