Resolution of molecular species of intact serine and ethanolamine phosphatides by argentation chromatography of their trifluoroacetamides.

abstract：:High-performance liquid chromatography-electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS) approaches have enabled high selectivity and sensitivity for the identification and quantification of glucosylceramide molecular species. Here we demonstrate that HPLC-ESI-MS/MS is an efficient method for character...

journal_title：Lipids

authors： Imai H,Hattori H,Watanabe M

更新日期：2012-12-01 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：:The acylation of lysophospholipids by rat liver acyltransferases was studied. A comparison between ester and ether lysophospholipids as substrates revealed large differences in substrate properties. For instance, oleic acid from oleoyl-CoA and arachidonic acid from arachidonoyl-CoA were not incorporated into 1-O-octad...

journal_title：Lipids

authors： Neumüller W,Fleer EA,Unger C,Eibl H

更新日期：1987-11-01 00:00:00

abstract：:A specific radioimmunoassay for platelet-activating factor (PAF) sensitive in the range 10-1000 pg (0.02-2 pmoles) has been developed. Detailed quantitative hapten inhibition studies showed specificity for the acetyl group at C-2 of PAF, a requirement for the ether linkage at C-1 and some tolerance for substituents on...

journal_title：Lipids

authors： Baldo BA,Smal MA,McCaskill AC

更新日期：1991-12-01 00:00:00

abstract：:Peanut oil was shown to be atherogenic in cholesterol-fed rats, rabbits, and monkeys. However, after randomization, a process in which the fatty acids in peanut oil are randomly rearranged, its atherogenicity was significantly reduced in cholesterol-fed rabbits and monkeys. The mechanism for this effect remains unknow...

journal_title：Lipids

authors： Satchithanandam S,Flynn TJ,Calvert RJ,Kritchevsky D

更新日期：1999-12-01 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 synthesis of phosphoglycerides is reviewed. Emphasis is placed upon precursor and intermediate compounds, phosphatidic acid, phosphatidyl choline, phosphatidyl ethanolamine, phosphatidyl serine, monoacylphosphoglycerides, purification and proof of structure. Suggestions are made for large scale synthesis of phosph...

journal_title：Lipids

authors： Jensen RG,Gordon DT

更新日期：1972-09-01 00:00:00

abstract：:Studies are reported on the capacity of isolated rat renal papilla (inner medulla) to synthesize and release prostaglandin (PG) E from endogenous and exogenous precursor(s) during development of an essential fatty acid (EFA) deficiency in the rat. Weanling (21-day-old) male Sprague-Dawley rats were fed a fat-free diet...

journal_title：Lipids

authors： Dunham EW,Balasingam M,Privett OS,Nickell EC

更新日期：1978-12-01 00:00:00

abstract：:A test meal (300 mg casein, 600 mg sucrose, 100 mg corn oil, tracer dose of 9.10(3)H oleic acid) was given to fasting adult rats with intestinal lymph fistulas. One group received an acute oral dose of ethanol (3.2 g/kg body weight) simultaneously with the test meal. Controls received 2.5 ml of water instead of ethano...

journal_title：Lipids

authors： Boquillon M

更新日期：1976-12-01 00:00:00

abstract：:The separation of lecithin derivatives based on their fatty acid substituents has been investigated. Several synthetic and natural lecithins were converted to their corresponding dimethylphosphatidates by hydrolysis with phospholipase D (phosphatidylcholine phospholipase D (phosphatidylcholine phosphatidohydrolase, EC...

journal_title：Lipids

authors： Wurster CF Jr,Copenhaver JH Jr

更新日期：1966-11-01 00:00:00

abstract：:Lysophosphatidic acid (lysoPtdOH), a lysophospholipid mediator, exerts diverse physiological effects, including angiogenesis, through its specific G-protein-coupled receptors. Previously, we showed that unfertilized hen egg white contains polyunsaturated fatty acid-rich lysoPtdOH and lysophospholipase D (lysoPLD). Her...

journal_title：Lipids

authors： Morishige J,Uto Y,Hori H,Satouchi K,Yoshiomoto T,Tokumura A

更新日期：2013-03-01 00:00:00

abstract：:The effect of various physicochemical forms of substrate on the activity of acid cholesteryl ester hydrolase isolated from rat liver lysosomes was studied. The amount of sodium taurocholate was varied in the substrate mixture which contained constant amounts of egg phosphatidylcholine (PC) and cholesteryl oleate. The ...

journal_title：Lipids

authors： Klemets R,Lundberg B

更新日期：1986-08-01 00:00:00

abstract：:The relationship between LCAT mediated HDL modification and the redistribution of lipoprotein-unassociated apoA-IV to HDL was investigated in vitro. Immunoaffinity-isolated rat lipoprotein-unassociated apoA-IV was added to apoB-, apoE-, apoA-IV depleted, [3H]cholesterol labelled rat plasma and incubated at 37 degrees ...

journal_title：Lipids

authors： Lefevre M,Goudey-Lefevre JC,Roheim PS

更新日期：1989-12-01 00:00:00

abstract：:A protocol, based on the use of Pseudomonas lipase, is presented to measure quantitatively the amount of triacylglycerols in extracts from cultured cells of tissues. Since the lipase also acts on di- and monoacylglycerols, separation of the extracts by thin-layer chromatography is recommended. In order to allow the li...

journal_title：Lipids

authors： Van Veldhoven PP,Swinnen JV,Esquenet M,Verhoeven G

更新日期：1997-12-01 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：:Fourteen pairs of obese female monozygotic twins were recruited for a study of genetic influences on serum and adipose fatty acid (FA) composition. Following 1 wk of inpatient stabilization, fasting serum and adipose tissue obtained by surgical excision were analyzed by thin-layer and gas chromatography. Intrapair res...

journal_title：Lipids

authors： Kunesová M,Hainer V,Tvrzicka E,Phinney SD,Stich V,Parízková J,Zák A,Stunkard AJ

更新日期：2002-01-01 00:00:00

abstract：:This work reports the effect of the apolipoproteins A-I and A-II (apoA-I and apoA-II) on the release of tumor necrosis factor (TNF)-alpha, interleukin (IL)-1beta, IL-8, and IL-1 receptor antagonist (IL-1Ra) and on the oxidative burst of human neutrophils. By themselves, apoA-I and apoA-II do not affect the basal liber...

journal_title：Lipids

authors： Furlaneto CJ,Ribeiro FP,Hatanaka E,Souza GM,Cassatella MA,Campa A

更新日期：2002-09-01 00:00:00

abstract：:A simple method is described for the preparation of [6,7,7(-2)H3] sterols and steroids. The synthesis starts with a Δ(5)-sterol or steroid and involves preparation of the 6-oxo-3α,5α-cyclosteroid, base exchange in the presence of deuterium oxide to introduce two deuteriums at the C-7 position and sodium borodeuteride ...

journal_title：Lipids

authors： Goad LJ,Breen MA,Rendell NB,Rose ME,Duncan JN,Wade AP

更新日期：1982-12-01 00:00:00

abstract：:In this study, we investigated the effect of various types of fats on heart lipid peroxidation status and on blood lipid parameters. Rats were fed either a low-fat diet (2.2% lard plus 2.2% corn oil), a corn oil diet (17%), a salmon oil diet (12.5%) supplemented with 4.5% corn oil, or a lard diet (15%) supplemented wi...

journal_title：Lipids

authors： Nalbone G,Leonardi J,Termine E,Portugal H,Lechene P,Pauli AM,Lafont H

更新日期：1989-03-01 00:00:00

abstract：:Isolated rat hepatocytes were preincubated with egg lecithin liposomes containing [3H]dolichol and [3H]dolichyl ester, and the intracellular levels and distributions of these lipids were subsequently determined after incubation in a liposome-free medium. [3H]Dolichol was recovered initially mainly in microsomes, and n...

journal_title：Lipids

authors： Tollbom O,Chojnacki T,Dallner G

更新日期：1992-04-01 00:00:00

abstract：:Tetramethylammonium hydroxide has been used in the extraction and pyrolysis methylation of the carboxylic acids produced by periodate-permanganate oxidation of monounsaturated fatty acid methyl esters. This modification of the von Rudloff procedure allows rapid determination of double-bond positions and analysis of mi...

journal_title：Lipids

authors： Downing DT,Greene RS

更新日期：1968-01-01 00:00:00

abstract：:Microtiter plate methods were developed for the enzymatic determination of serum total cholesterol (TC), high density lipoprotein cholesterol (HDL-C) and triglyceride (TG), and for the turbidometric determination of apolipoproteins. The micromethods resulted in accurate, precise values that were in good agreement with...

journal_title：Lipids

authors： Shireman RB,Durieux J

更新日期：1993-02-01 00:00:00

abstract：:This study proposed lipid fingerprinting of human seminal plasma by mass spectrometry as an analytical method to differentiate biological conditions. For this purpose, we chose infertile men as a model to study specific conditions, namely: high and low seminal plasma lipid peroxidation levels (sub-study 1.1), high and...

journal_title：Lipids

authors： Camargo M,Intasqui P,de Lima CB,Montani DA,Nichi M,Pilau EJ,Gozzo FC,Lo Turco EG,Bertolla RP

更新日期：2014-09-01 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：:FA ethyl esters (FAEE) are nonoxidative metabolites of ethanol produced by the esterification of FA and ethanol. FAEE have been implicated as mediators of ethanol-induced organ damage in vivo and in vitro, and are markers of ethanol intake. Upon ethanol intake, FAEE are synthesized in the liver and pancreas in signifi...

journal_title：Lipids

authors： Hasaba A,Cluette-Brown JE,Laposata M

更新日期：2003-10-01 00:00:00

abstract：:The effects of increasing concentrations of eicosapentaenoic acid (20:5n-3; EPA) and oleic acid (18:1n-9; OA) on esterification to triacylglycerols (TG) and phospholipids (PL), and the relationship to formation and secretion of the very low density lipoproteins (VLDL) were compared in the isolated perfused rat liver. ...

journal_title：Lipids

authors： Zhang ZJ,Wilcox HG,Castellani L,Fungwe TV,Elam MB,Heimberg M

更新日期：1993-05-01 00:00:00

abstract：:According to the model of "response to injury," the arterial endothelium is occasionally injured in hyperlipidemia, hypertension, diabetes mellitus and in other states known as risk factors. The ensuing inflammatory response is modulated by cytokines and growth factors, among them platelet-derived growth factor (PDGF)...

journal_title：Lipids

authors： von Schacky C,Baumann K,Angerer P

更新日期：2001-01-01 00:00:00

abstract：:Pycnogenol (PYC), an extract of French maritime pine bark (Pinus pinaster), is a potent antioxidant with potential health benefits. Its bioavailabilty has previously been shown by urinary excretion studies of constituents and metabolites of PYC. The aim of this study was to test the effect of PYC supplementation on me...

journal_title：Lipids

authors： Devaraj S,Vega-López S,Kaul N,Schönlau F,Rohdewald P,Jialal I

更新日期：2002-10-01 00:00:00

abstract：:It has been shown that different lysophosphatidylcholines (LPC) possess relaxing properties in vascular strips. We report on the effect of intraatrial injection of LPC micelles into white New Zealand rabbits. Changes in renal and coronary flow were determined by radioactive microspheres. Coronary blood flow increased ...

journal_title：Lipids

authors： Wolf A,Saito T,Dudek R,Bing RJ

更新日期：1991-03-01 00:00:00

abstract：:Several experimental approaches were used to determine whether rat liver and testes express an acyl-CoA-dependent delta8 desaturase. When [1-14C]5,11,14-eicosatrienoic acid was injected via the tail vein, or directly into testes, it was incorporated into liver and testes phospholipids, but it was not metabolized to ot...

journal_title：Lipids

authors： Chen Q,Yin FQ,Sprecher H

更新日期：2000-08-01 00:00:00