Lipids
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Polyunsaturated fatty acids in tissues of rats fed trielaidin and high or low levels of linolenic acid
Lipids - Tập 22 - Trang 1025-1030 - 1987
Male and female weanling rats that were born to dams fed a diet low in linolenic acid received diets of 15% lipids by weight containing 45% elaidic acid (as trielaidin) and 8.5% or 0.1% linolenic acid for 10 weeks. Four other groups, in which palmitic or oleic acid replaced elaidic acid in the diet, served as controls. The fatty acid profiles of several lipid classes were determined in adipose tis......
Kinetic study of reactions between tocopheroxyl radicals and fatty acidsAbstract A kinetic study on the prooxidant effect of vitamin E derivatives has been carried out. Rates of hydrogen abstraction from various fatty acids and egg yolk lecithin by tocopheroxyl radicals were determined spectrophotometrically. The rate constants measured in micellar dispersion were compared with those obtained in homogeneous solutions. The effects of str... ...
Lipids - - 1993
Effect of conjugated FA on feed intake, body composition, and liver FA in mice
Lipids - Tập 38 - Trang 895-902 - 2003
CLA is a generic term describing different isomers of linoleic acid with two conjugated double bonds. Various metabolic effects have been demonstrated following administration of CLA, including a change in body composition in animals. However, the effects of pure CLA isomers are not fully understood. In addition, conjugated octadecatrienoic acids such as calendic acid have not been extensively inv......
A simple method for the synthesis of ceramides and radiolabeled analoguesAbstract A simple method has been developed for the coupling of amines to carboxylic acids.N ‐Fatty‐acyl‐sphingosine, cerebroside, and GM3 , as well as their respective [14 C] analogues, were synthesized using diethylphosphoryl cyanide as a potent coupling agent in the presence of triethylamine. The r... ...
Lipids - Tập 31 Số 9 - Trang 995-998 - 1996
Noninvasive characterization of neonatal adipose tissue by 13C magnetic resonance spectroscopy
Lipids - Tập 32 - Trang 645-651 - 1997
In vivo
13C magnetic resonance spectroscopy (MRS) was applied noninvasively to analyze the fatty acid composition of adipose tissue in 21 full-term newborn infants and 6 mothers. In order to assess the effects of gestational and postnatal age on adipose tissue composition, we studied preterm infants at birth, term infants at the ages of 6 wk and at ......
Metabolism of anandamide and 2-arachidonoylglycerol: An historical overview and some recent developments
Lipids - Tập 34 - Trang S319-S325 - 1999
Anandamide (N-arachidonoylethanolamine) and 2-arachidonoylglycerol are the two endogenous agonists of cannabinoid receptors discovered to date. Like other eicosanoids, and unlike classical neuromodulators, these two compounds are synthesized by neurons on demand, i.e., their biosynthesis, rather than release, is stimulated by Ca2+ influx and cell membrane depolarization. Both endocannabinoids can ......
A simplified approach to the analysis of subclasses of phospholipids: Application to human platelets
Lipids - Tập 23 - Trang 609-614 - 1988
A procedure for the determination of the proportions of diacyl, alkenylacyl and alkylacyl subclasses of glycerolphospholipids was developed. The procedure involves: (1) acid methanolysis of the phospholipid followed by Bligh/Dyer extraction of fatty acid methyl esters (FAME) derived from acyl chain types, dimethylacetals (DMA) derived from alkenyl ether chain types, and lysoalkyl phosphatidic acid......
The triglyceride composition of 17 seed fats rich in octanoic, decanoic, or lauric acid
Lipids - Tập 2 - Trang 345-350 - 1967
Seed fats of eight species ofLauraceae (laurel family), six species ofCuphea (Lythraceae family), and three species ofUlmaceae (elm family) were extracted, and the triglycerides were isolated by preparative thin-layer chromatography. GLC of the triglycerides on a silicone column resolved 10 to 18 peaks with a 22 to 58 carbon number range for each fat. These carbon number distributions yielded cons......
Induction of geranyl pyrophosphate pyrophosphatase activity by cholesterol-suppressive isoprenoids
Lipids - Tập 30 - Trang 357-359 - 1995
Diets supplemented (1 mmol/kg) with thymol, carvacrol, and β-ionone significantly decreased the serum cholesterol levels of cockerels. These mevalonate-derived end products of plant secondary metabolism (isoprenoids) had no impact on two cytosolic prenyl alcohol (and ethanol) dehydrogenase activities; each treatment increased microsomal geranyl pyrophosphate pyrophosphatase activity by greater tha......
Resolution of molecular species of intact serine and ethanolamine phosphatides by argentation chromatography of their trifluoroacetamides
Lipids - Tập 12 - Trang 529-537 - 1977
An effective resolution of intact phosphatidylserines on the basis of unsaturation has been achieved by conventional argentation thin layer chromatography (TLC) following trifluoroacetylaction. The trifluoroacetamides are prepared by treatment with trifluoroacetic anhydride or N-methyl-bis-trifluoroacetamide. The acetamides are resolved with chloroform-methanol-water (65∶25∶4, v/v/v) on Silica Gel......
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