Dexamethasone blocks arachidonate biosynthesis in isolated hepatocytes and cultured hepatoma cells.

abstract：:In the present study, the structural characteristics that impart antibacterial activity to C16 alkynoic fatty acids (aFA) were further investigated. The syntheses of hexadecynoic acids (HDA) containing triple bonds at C-3, C-6, C-8, C-9, C-10, and C-12 were carried out in four steps and with an overall yield of 34-78%...

journal_title：Lipids

authors： Sanabria-Ríos DJ,Morales-Guzmán C,Mooney J,Medina S,Pereles-De-León T,Rivera-Román A,Ocasio-Malavé C,Díaz D,Chorna N,Carballeira NM

更新日期：2020-03-01 00:00:00

abstract：:Commercial fish oils and foods containing fish may contain trans and/or isomerized fatty acids (FA) produced during processing or as part of prepared foods. The current American Oil Chemists' Society (AOCS) official method for marine oils (method Ce 1i-07) is based on separation by use of poly(ethylene glycol) (PEG) c...

journal_title：Lipids

authors： Santercole V,Delmonte P,Kramer JK

更新日期：2012-03-01 00:00:00

abstract：:Four bacterial isolates, which produced polyunsaturated fatty acids (PUFA), were isolated from water samples of radioactive springs collected from Jáchymov spa. Jáchymov (Sankt Joachimsthal) is a city in northwestern Bohemia, where Marie and Pierre Curie isolated radium in 1898 from the mineral uraninite. To date, fou...

journal_title：Lipids

authors： Řezanka T,Gharwalová L,Nováková G,Kolouchová I,Uhlík O,Sigler K

更新日期：2019-02-01 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：:Total lipid content in the thermophilic fungi-Thermoascus aurantiacus, Humicola lanuginosa, Malbranchea pulchella var.sulfurea, andAbsidia ramosa-varied from 5.3 to 19.1% of mycelial dry weight. The neutral and polar lipid fractions accounted for 56.4 to 80.2% and 19.8 to 43.6%, respectively. All the fungi contained m...

journal_title：Lipids

authors： Raju KS,Maheshwari R,Sastry PS

更新日期：1976-10-01 00:00:00

abstract：:Tissue and blood fatty acid compositions are used as biological markers of fatty acid intakes to improve dietary assessments. These approaches are invasive and not well accepted, particularly in infants and young children. We developed a sensitive method for the analysis of fatty acids in cheek cell glycerophospholipi...

journal_title：Lipids

authors： Klingler M,Demmelmair H,Koletzko B,Glaser C

更新日期：2011-10-01 00:00:00

abstract：:Total lipids from whole pig adrenal glands as well as from their mitochondria, microsomes, liposomes, and cell sap were extracted and fractionated first into neutral lipids and phospholipids. The highest percentage of neutral lipids was found in the cell sap, and the lowest in the microsomal fraction. Neutral lipids w...

journal_title：Lipids

authors： Cmelik SH,Ley H

更新日期：1975-11-01 00:00:00

abstract：:Greatly increasing the amounts of flaxseed oil [rich in alpha-linolenic acid (ALNA)] or fish oil (FO); [rich in eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)] in the diet can decrease inflammatory cell functions and so might impair host defense. The objective of this study was to determine the effect of d...

journal_title：Lipids

authors： Thies F,Miles EA,Nebe-von-Caron G,Powell JR,Hurst TL,Newsholme EA,Calder PC

更新日期：2001-11-01 00:00:00

abstract：:The cholesterol-suppressive action of the tocotrienol-rich-fraction (TRF) of palm oil may be due to the effect of its constituent tocotrienols on beta-hydroxy-beta-methylglutaryl coenzyme A (HMG-CoA) reductase activity. The tocotrienols, modulate HMG-CoA reductase activity via a post-transcriptional mechanism. As a co...

journal_title：Lipids

authors： Yu SG,Thomas AM,Gapor A,Tan B,Qureshi N,Qureshi AA

更新日期：2006-05-01 00:00:00

abstract：:A protocol using a dry column method was modified for the extraction of total lipids and the simultaneous separation and quantitation of neutral and polar lipids in human milk. The triacylglycerol, cholesterol, phospholipid and vitamin E contents of the lipid extracts were determined and compared with lipids extracted...

journal_title：Lipids

authors： Collins SE,Jackson MB,Lammi-Keefe CJ,Jensen RG

更新日期：1989-08-01 00:00:00

abstract：:Vegetable oils are one of the main agricultural commodities. Demand has been increasing steadily over the last five decades and, with finite land available, it is vital that we increase productivity. My laboratory has focused on the regulation of plant lipid metabolism and, as part of this work, we identified diacylgl...

journal_title：Lipids

authors： Harwood JL

更新日期：2020-09-01 00:00:00

abstract：:Insulin and dietary fructose independently induce stearoyl-CoA desaturase 1 (SCD1) gene expression in diabetic mouse liver. In the present study, we again used diabetic mice and supplemented a high fructose diet with polyunsaturated fatty acids (PUFA) to determine the selective repression of SCD1 gene expression by di...

journal_title：Lipids

authors： Waters KM,Ntambi JM

更新日期：1996-03-01 00:00:00

abstract：:The concentrations of the major neutral lipid and phospholipid classes in the plasma of rats bearing hepatoma 7288CTC were determined at various times after transplantation. The fatty acid composition of each lipid class was also analyzed quantitatively as tumor growth progressed. Generally, most lipid classes exhibit...

journal_title：Lipids

authors： Matocha M,Wood R

更新日期：1980-06-01 00:00:00

abstract：:Six oils of marine, algal, and microbial origin were analyzed for stereospecific distribution of component fatty acids. The general procedure involved preparation of sn-1,2-(2,3)-diacylglycerols by partial deacylation with ethylmagnesium bromide or pancreatic lipase, separation of X-1,3- and sn-1,2(2,3)-diacylglycerol...

journal_title：Lipids

authors： Myher JJ,Kuksis A,Geher K,Park PW,Diersen-Schade DA

更新日期：1996-02-01 00:00:00

abstract：:Previous research in rats and mice has suggested that gamma-linolenic acid (GLA) derived from borage oil (BO: 23% GLA) may be an appropriate source for increasing levels of long-chain n-6 FA in the developing brain. Recently, transgenic technology has made available a highly enriched GLA seed oil from the canola plant...

journal_title：Lipids

authors： Wainwright PE,Huang YS,DeMichele SJ,Xing H,Liu JW,Chuang LT,Biederman J

更新日期：2003-02-01 00:00:00

abstract：:The burrowing sponges Anthosigmella varians and Spheciospongia vesparium were found to be rich in the isoprenoid phospholipid fatty acid 4,8,12-trimethyltridecanoic (5.2% and 23%, respectively, of the total fatty acid composition), while the burrowing sponge Chondrilla nucula and the demosponge Agelas dispar contained...

journal_title：Lipids

authors： Carballeira NM,Maldonado L,Porras B

更新日期：1987-10-01 00:00:00

abstract：:The FA composition of Fasciola hepatica 12 kDA purified native FA-binding protein (nFh12), a candidate vaccine against fascioliasis, is described. The FA chain lengths ranged between 12 and 24 carbons. The principal FA were 16:0, 18:1n-9, 18:0, 20:4n-6, and 20:1n-9. The acids 16:0, 18:1n-9, and 18:0 comprised over hal...

journal_title：Lipids

authors： Carballeira NM,Cruz H,Hillyer GV

更新日期：2003-07-01 00:00:00

abstract：:This paper describes a simple method for the analysis of tocopherols in tissues by which frozen tissues-70 degrees C were pulverized at dry ice temperatures (-70 degrees C) and immediately extracted with hexane. There was no need to remove the coeluting lipids from tissues by saponification, since at that level of neu...

journal_title：Lipids

authors： Kramer JK,Blais L,Fouchard RC,Melnyk RA,Kallury KM

更新日期：1997-03-01 00:00:00

abstract：:We have examined the possibility that human polymorphonuclear cells exposed to IgA immune complexes can mediate the production of platelet-activating factor (PAF) and oxygen radicals. We found that human IgA and IgG immune aggregates stimulated, to a similar extent, PAF and O2- production by human polymorphonuclear ce...

journal_title：Lipids

authors： Hernando P,Egido J,de Nicolas R,Gonzalez E

更新日期：1991-12-01 00:00:00

abstract：:The calcium ionophore A23187 stimulates release of free [3H]arachidonic acids from radiolabeled cultures of MEPM cells which are growing, but not from those which are confluent. However, when confluent MEPM cells are pretreated with EGF or PMA, release of [3H]arachidonic acids does occur in response to A23187. Since n...

journal_title：Lipids

authors： Chepenik KP

更新日期：1989-09-01 00:00:00

abstract：:The impact of starch sources differing in their velocities of ruminal degradation on the milk fat of dairy cows was studied. The animals received diets containing a slowly degradable (potatoes) or rapidly degradable (wheat) starch concentrate (40% of the dry matter) in a total mixed diet. Milk fat was the only animal ...

journal_title：Lipids

authors： Jurjanz S,Monteils V,Juaneda P,Laurent F

更新日期：2004-01-01 00:00:00

abstract：:The compositions of the fatty acids in the 1, 2 and 3 positions of the principal glycerolipids and their various stereoisomers were determined. Fatty acids in the 1 and 3 positions of triglycerides were similar in composition and less unsaturated than those in the 2 position. Fatty acids in the 1,2-, 1,3- and 2,3-digl...

journal_title：Lipids

authors： Arunga RO,Morrison WR

更新日期：1971-10-01 00:00:00

abstract：:The catfish, Ictalurus punctatus, is an important model for studying the biochemical mechanisms of taste at the peripheral level. The type, amount and metabolic activity of the lipids within this tissue play important roles in taste transduction by forming the matrix in which the receptors for taste stimuli are imbedd...

journal_title：Lipids

authors： Rabinowitz JL,Huque T,Brand JG,Bayley DL

更新日期：1990-04-01 00:00:00

abstract：:The effect of dietary n-3 FA deficiency on bone tissue FA composition was evaluated in growing rats. Two mixtures combining hydrogenated coconut oil with safflower oil served as the n-3-deficient dietary treatments and provided two levels of linoleic acid (LA). The n-3 treatments were formulated with added alpha-linol...

journal_title：Lipids

authors： Li Y,Greiner RS,Salem N Jr,Watkins BA

更新日期：2003-06-01 00:00:00

abstract：:Thermally oxidized rapeseed oils (4 levels of deterioration; used by a manufacturer of fried fish paste in a conventional manner) were fed to rats at a practical level of concentration. Rats were fed a diet ad libitum for 13 weeks that contained 15% of a test oil. The effects of the diet on several biochemical criteri...

journal_title：Lipids

authors： Izaki Y,Yoshikawa S,Uchiyama M

更新日期：1984-05-01 00:00:00

abstract：:1,2-Diacylglycerol, which has been recognized as one of the intracellular second messengers, was measured quantitatively in the lipid extract from rat hearts using the thin layer chromatography and flame ionization detection (TLC/FID) method. Cholesterol acetate was added to the tissue as an internal standard, and the...

journal_title：Lipids

authors： Okumura K,Hashimoto H,Ito T,Ogawa K,Satake T

更新日期：1988-03-01 00:00:00

abstract：:In a detailed sterol analysis of the marine diatom Phaeodactylum tricornutum, free sterols as well as esterified and glycosylated conjugates were found. When the alga was grown under standard conditions (i.e., at 13 degrees C under white light), 64% of total sterols were steryl glycosides. In all sterol classes, excep...

journal_title：Lipids

authors： Véron B,Billard C,Dauguet JC,Hartmann MA

更新日期：1996-09-01 00:00:00

abstract：:Saccharomyces cerevisiae cells were demonstrated to contain lysophosphatidylcholine (lysoPtdCho) acyltransferase (E.C. 2.3.1.23) activity. The enzyme displayed Km(app) of 69 microM for lysoPtdCho and 152 microM for oleoyl CoA. Enzyme activity was not affected by the addition of 1 mM Mg2+, Mn2+, Ca2+, or 200 mM EDTA. H...

journal_title：Lipids

authors： Richard MG,McMaster CR

更新日期：1998-12-01 00:00:00

abstract：:Choline is an essential nutrient required for the biosynthesis of membrane lipid phosphatidylcholine (PtdCho). Here we elucidate the mechanism of how palmitic acid (PAM) and oleic acid (OLA) regulate choline transporter-like protein 1 (CTL1/SLC44A1) function. We evaluated the mechanism of extracellular and intracellul...

journal_title：Lipids

authors： Schenkel LC,Bakovic M

更新日期：2014-08-01 00:00:00

abstract：:Extraction of freeze-dried tissues by acetone results in the in vitro production of an acetone derivative (imine) of the ethanolamine phosphatides. Some of the properties of the acetone imine of ethanolamine plasmalogen are discussed. ...

journal_title：Lipids

authors： Helmy FM,Hack MH

更新日期：1966-07-01 00:00:00