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...
The removal of water and nonlipid contaminants from lipid extracts
Lipids - Tập 5 Số 4 - Trang 367-370 - 1970
AbstractA technique is presented for the removal of water and water‐soluble
non‐lipid contaminants from lipid extracts. The process is quicker and simpler
than existing techniques and lipid recoveries of greater than 97% have been
obtained.
Kinetic study of reactions between tocopheroxyl radicals and fatty acids
Lipids - - 1993
AbstractA 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 structural variations of the
vitamin...
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 analogues
Lipids - Tập 31 Số 9 - Trang 995-998 - 1996
AbstractA 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 [14C] analogues, were synthesized using diethylphosphoryl
cyanide as a potent coupling agent in the presence of triethylamine. The
reaction procedure is rapid, racemization‐free, and utilizes acids without
derivatization. The desired ...
Interaction between dietary protein and fat in triglyceride metabolism in the rat: Effects of soy protein and menhaden oil
Lipids - Tập 37 - Trang 693-699 - 2002
The objective of the present study was to determine the mechanisms by which
dietary proteins interact with dietary lipids in the regulation of
triglyceridemia in rats. Male Sprague-Dawley rats (n=56) were subjected to 28-d
experimental diets containing different combinations of proteins (20% w/w) and
lipid sources (14% w/w): (i) casein-menhaden oil, (ii) casein-beef tallow, (iii)
soy protein-menha...
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 6 mon. We also investigated the
influence of mate...
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...
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