Analysis of volatile fatty acids in biological specimens by capillary column gas chromatography.

abstract：:The effect of ethanol on the fatty acid desaturation by rat liver has been studied using liquid diets of different composition. Acute ethanol administration increased triacylglycerols of total liver lipids, but did not modify significantly the lipidic composition of microsomes. The delta 6 and delta 5 desaturases were...

journal_title：Lipids

authors： Nervi AM,Peluffo RO,Brenner RR,Leikin AI

更新日期：1980-04-01 00:00:00

abstract：:After two months feeding either an (n-3) or an (n-6) fatty acid-rich diet, two groups of trout were switched to the (n-6) or the (n-3) fatty acid-rich diet, respectively. Half of each group was treated with 0.03% 5,8,11,14-eicosatetraynoic acid (ETYA) in the diet. Liver and intestinal brush border membrane lipids were...

journal_title：Lipids

authors： Pelletier X,Leray C

更新日期：1987-12-01 00:00:00

abstract：:The effect of lecithin on jejunal absorption of fatty acids and octadecenoylglycerol was studied in healthy volunteers with a jejunal perfusion system which excluded pancreatic and biliary secretions from the test segment. Lecithin significantly reduced the absorption of oleic acid (P less than 0.05) and octadecenoylg...

journal_title：Lipids

authors： Ammon HV,Thomas PJ,Phillipis SF

更新日期：1979-04-01 00:00:00

abstract：:The effectiveness of different fatty acids as inhibitors of fatty acyl delta 5 desaturation activity in human skin fibroblasts has been investigated. When incubated with 2.25 microM [14C] eicosatrienoate (20:3 omega 6) in otherwise lipid-free medium, these cells rapidly incorporate the radiolabeled fatty acid into cel...

journal_title：Lipids

authors： Rosenthal MD,Doloresco MA

更新日期：1984-11-01 00:00:00

abstract：:The biosynthesis of 3R-hydroxy-5Z, 8Z, 11Z,14Z-eicosatetraenoic acid (3R-HETE) from arachidonic acid (20:4n-6) by the hyphal-forming yeast, Dipodascopsis uninucleata, in cell-free enzyme extracts required CoASH, ATP, NAD+ and Mg2+; 3R-HETE was present as the CoA derivative in enzyme extracts and its biosynthesis was a...

journal_title：Lipids

authors： Fox SR,Hamberg M,Friend J,Ratledge C

更新日期：2000-11-01 00:00:00

abstract：:The aim of this study was to determine the effects of an omega-3 (n-3) polyunsaturated fatty acid (PUFA)-enriched diet on animal fat depots and lipid oxidation in the blood and meat of broiler chickens. Abdominal fat pad (AFP), sartorius muscle and liver histology were used to assess the effect of the dietary fat on a...

journal_title：Lipids

authors： González-Ortiz G,Sala R,Cánovas E,Abed N,Barroeta AC

更新日期：2013-07-01 00:00:00

abstract：:The amount and composition of lysophosphatidate present in different rat tissues have been estimated by an internal standard method in which a synthetic unnatural isomer (1-heptadecanoyl-rac-glycerol-3-phosphate) was added to the total lipid extracts, and the fatty acid composition of purified lysophosphatidate was de...

journal_title：Lipids

authors： Das AK,Hajra AK

更新日期：1989-04-01 00:00:00

abstract：:Normal phase high performance liquid chromatography methods are described for the separation of neutral lipid, fatty acid and five phospholipid classes using spectrophotometric detection at 206 nm. Separations were accomplished in less than 10 min for each lipid class. A mobile phase consisting of hexane/methyltertiar...

journal_title：Lipids

authors： Hamilton JG,Comai K

更新日期：1988-12-01 00:00:00

abstract：:The effect of apo very low density lipoprotein (apo VLDL) and apoprotein C-II on the phospholipase A1 activity associated with lipoprotein lipase (E.C.3.1.1.3) was studied using purified bovine milk lipoprotein lipase. The enzyme degraded 14C phosphatidylcholine (PC) to 14C 2-acyl lysophosphatidylcholine at a rate of ...

journal_title：Lipids

authors： Stocks J,Galton DJ

更新日期：1980-03-01 00:00:00

abstract：:Dietary fat and abnormal production of various prostanoids have been linked to various disease states of the large bowel, including cancer of the colon. Studies were conducted to determine the effect of dietary fat (beef tallow or corn oil) on the lipid composition and prostanoid production of the murine colon. Female...

journal_title：Lipids

authors： Robblee NM,Farnworth ER,Bird RP

更新日期：1988-04-01 00:00:00

abstract：:Saturated fatty acids are the most abundant fatty acids in the brain, however, there has been some debate regarding the ability of intact dietary saturated fatty acids to be incorporated into the brain. In the present study, we use compound specific isotope analysis to measure the natural abundance carbon isotopic sig...

journal_title：Lipids

authors： Lacombe RJS,Giuliano V,Chouinard-Watkins R,Bazinet RP

更新日期：2018-05-01 00:00:00

abstract：:A new spectrophotometric assay for determining the activity of acylglycerol hydrolases (lipases, E.C. 3.1.1.3) was developed and optimized for yeast lipase (Candida cylindracea). Studies with porcine pancreatic lipase were also conducted and the influence of various detergents and divalent cations on the assay was eva...

journal_title：Lipids

authors： Rogel AM,Stone WL,Adebonojo FO

更新日期：1989-06-01 00:00:00

abstract：:Cholesterol biosynthesis from acetate-2-(14)C by the livers of suckling rats, which is known to be relatively slow, was increased 2-3-fold within 24 hours after severing the bile duct. Cholesterol synthesis by sham-operated litter mates showed no change under similar treatment. Mevalonate biosynthesis from acetate-2-(...

journal_title：Lipids

authors： Harris RA,Rivera ER,Villemez CL Jr,Quackenbush FW

更新日期：1967-03-01 00:00:00

abstract：:By in vivo and in vitro studies of L-(3-3H)serine and [9,10(n)-3H]palmitic acid incorporation into phospholipids, we show a change in the renewal of the ceramide moiety of sphingomyelin in the gills of euryhaline fish (sea bass and eels) when the animals were subjected to abrupt alterations in environmental salinity. ...

journal_title：Lipids

authors： el Babili M,Brichon G,Zwingelstein G

更新日期：1996-04-01 00:00:00

abstract：:Arachidonic acid was reduced by hydrazine to yield isomeric eicosatrienoic acids with other products. Methylcis,cis,cis-5,8,11-eicosatrienoate was isolated from the products by silver ion chromatography and preparative gas liquid chromatography in 8% yield. The structure was confirmed by spectral studies and oxidative...

journal_title：Lipids

authors： Ghosh A,Koley M,Dutta J

更新日期：1982-04-01 00:00:00

abstract：:The minimum requirement of linoleic acid to prevent effects of dietary C18 trans fatty acids on eicosanoid biosynthesis in rats was assessed. In a first experiment, six groups of animals were fed diets with a high content of trans fatty acids [20% of energy (en%)], and increasing amounts of linoleic acid (0.4 to 7.1 e...

journal_title：Lipids

authors： Zevenbergen JL,Haddeman E

更新日期：1989-06-01 00:00:00

abstract：:Two electrophoretically different forms of sterol ester hydrolase (EC 3.1.1.13) were obtained from the cytoplasmic extract of the mycelia of Fusarium oxysporum. The entities, estimated at 60,000 (I) and 15,000 (II) molecular weights, were obtained in Sephadex G100 column chromatography of the ammonium sulfate precipit...

journal_title：Lipids

authors： Madhosingh C,Orr W

更新日期：1981-02-01 00:00:00

abstract：:The lipid quality of ruminant products is largely determined by the extent of rumen microbial biohydrogenation (BH) of polyunsaturated fatty acids (FAs) and the substances formed thereby. In vitro batch incubations with mixed rumen bacteria were tracked over 24 h to characterize the profiles and kinetics of the BH pro...

journal_title：Lipids

authors： Jouany JP,Lassalas B,Doreau M,Glasser F

更新日期：2007-04-01 00:00:00

abstract：:The bile acid pool was found to be ca. 50 mumoles/100 g body wt in male and female rats maintained on standard laboratory chow and ca. 30 mumoles/100 g body wt in those maintained on a standard semisynthetic diet. The distribution of bile acids within the pool was similar in plasma, liver, and intestinal tract, except...

journal_title：Lipids

authors： Fisher MM,Kakis G,Yousef IM

更新日期：1976-02-01 00:00:00

abstract：:The developmental changes in the fatty acid composition of ethanolamine phosphoglycerides (EPG) and choline phosphoglycerides (CPG) were studied in the liver and brain of 18 newborn infants with gestational ages ranging from 20 to 44 wk. A small group of five newborns receiving total parenteral nutrition (TPN) with hi...

journal_title：Lipids

authors： Martínez M,Ballabriga A

更新日期：1987-03-01 00:00:00

abstract：:Dietary fatty acids have different effects on fat deposition in pigs. To clarify the underlying mechanisms of this difference, we compared the metabolism of palmitic (PAM, saturated), oleic (OLA, monounsaturated) and linoleic acid (LNA, polyunsaturated) in porcine adipocytes treated with 100 μM PAM, OLA or LNA. We obs...

journal_title：Lipids

authors： Yu C,Xi L,Chen J,Jiang Q,Yi H,Wang Y,Wang X

更新日期：2017-11-01 00:00:00

abstract：:Current methods for determining the regiochemistry of monoacylglycerols are lengthy, tedious and aggravated by the ready isomerization of 2-acyl-sn-glycerols. A new method employs a very rapid adsorption chromatography step in which isomerization is kept to a minimum, followed by formation of the isopropylidene deriva...

journal_title：Lipids

authors： Dawe RD,Wright JJ

更新日期：1988-04-01 00:00:00

abstract：:Taurolithocholic acid and deoxycholic acid were perfused into isolated prairie dog livers. Taurolithocholic acid was 7 alpha-hydroxylated to form taurochenodeoxycholic acid, whereas deoxycholic acid was conjugated and 7 alpha-hydroxylated to form taurocholic acid. The low concentrations of secondary bile acids observe...

journal_title：Lipids

authors： Cohen BI,Singhal AK,Mongelli J,Rothschild MA,McSherry CK,Mosbach EH

更新日期：1983-12-01 00:00:00

abstract：:The effects of beta-muricholic acid and hyocholic acid on cholesterol cholelithiasis were examined in two animal models. The following experiments were carried out: A) In a gallstone prevention study, prairie dogs were fed the lithogenic diet with or without 0.1% beta-muricholic or 0.1% hyocholic acid for eight weeks....

journal_title：Lipids

authors： Cohen BI,Mikami T,Ayyad N,Ohshima A,Infante R,Mosbach EH

更新日期：1995-09-01 00:00:00

abstract：:Lipids were extracted from four dog adipose tissue sites, perirenal, pericardial, inguinal subcutaneous, and mesenteric. The triglycerides were purified by thin-layer chromatography and the sub-classes separated by silver nitrate-silica gel plates. Gas chromatography was used to delineate the fatty acid composition of...

journal_title：Lipids

authors： Gold M

更新日期：1968-11-01 00:00:00

abstract：:This report deals with the fluorometric determination of fatty alcohols generated by the reduction of the ester linkage of lipids with NaBH4, and with the limitations of the reduction method for assaying oxidized lipids. Optimum conditions for the fluorometric analysis of primary and secondary alcohols using 1-anthroy...

journal_title：Lipids

authors： Nakamura T,Maeda H,Takahashi Y,Hama Y

更新日期：1990-09-01 00:00:00

abstract：:Levels of serum lipids and lipoproteins, and the fatty acid composition of plasma phospholipids, were measured in two genetically comparable, but widely separated, populations. The 1975 mortality rates for ischemic heart disease were significantly higher in one of these populations, the Manitoban residents of pure Ice...

journal_title：Lipids

authors： Skúladóttir GV,Gudmundsdóttir S,Olafsson GB,Sigurdsson SB,Sigfússon N,Axelsson J

更新日期：1995-07-01 00:00:00

abstract：:The fatty acid composition of cerebrosides of developing foetal human brain and regional variations, if any, during intrauterine life were studied. While palmitic and stearic acids were the predominant normal fatty acids throughout intrauterine life, long chain fatty acids, like lignoceric and nervonic acids, which we...

journal_title：Lipids

authors： Rao PS

更新日期：1977-04-01 00:00:00

abstract：:Ceramide 2-aminoethylphosphonate (CAEP), a sphingophosphonolipid containing a carbon-phosphorus bond, is frequently found in marine organisms and has a unique triene type of sphingoid base in its structure. CAEP has not been evaluated as a food ingredient, although it is generally contained in Mollusca organisms such ...

journal_title：Lipids

authors： Tomonaga N,Manabe Y,Sugawara T

更新日期：2017-04-01 00:00:00

abstract：:The purpose of the present investigation was to test whether permanent skeletal muscle cells (rat L6 cells) could serve as an in vitro model for alpha-tocopherol (alphaTocH) biodiscrimination studies. L6 cells were incubated in the presence of high density lipoprotein (HDL), low density lipoprotein (LDL), and very low...

journal_title：Lipids

authors： Nakamura T,Reicher H,Sattler W

更新日期：1998-10-01 00:00:00