Analysis of methylsterol fractions from twenty vegetable oils.

abstract：:The proximate and fatty acid compositions of the commercially important fish species (Engraulis encrasicolus, Alosa alosa, Belone belone, Scorpaena porcus, Pomatomus saltatrix, Mullus barbatus) from the Sinop region of the Black Sea were examined. The fat contents ranged from 1.26% (for scorpion fish) to 18.12% (for s...

journal_title：Lipids

authors： Kocatepe D,Turan H

更新日期：2012-06-01 00:00:00

abstract：:The activity of the platelet-activating factor (PAF)-synthesizing enzyme, 1-O-alkyl-sn-glycero-3-phosphocholine (lysoPAF):acetyl-CoA acetyltransferase (EC 2.3.1.67) in alveolar macrophage lysate was found to be elevated after warming the cells to 37 degrees C. Such an increase in enzyme activity was detectable only wh...

journal_title：Lipids

authors： Sugiura T,Fukuda T,Cheng NN,Waku K

更新日期：1991-11-01 00:00:00

abstract：:The activity of pyruvate dehydrogenase from freshly isolated mitochondria was shown to be dependent upon the nutritional and metabolic state of the animal prior to sacrifice, such that mitochondria from the livers of 48 hr starved, diabetic, or high fat fed rats had lower enzyme activity than normal, chow fed rats. Th...

journal_title：Lipids

authors： Mapes JP,Harris RA

更新日期：1975-12-01 00:00:00

abstract：:A method is described for the separation, identification, and quantitative estimation of the individual molecular species occurring in natural lecithin mixtures. Purified lecithin preparations are converted into diglyceride acetates by enzymic dephosphorylation and acetylation. The diglyceride acetates are separated o...

journal_title：Lipids

authors： Kuksis A,Marai L

更新日期：1967-05-01 00:00:00

abstract：:A method for the simultaneous quantitative analysis of prostaglandin E2 (PGE2) and PGE3 is described. The PG were analyzed by selected ion monitoring as the methyl ester-TMS ether derivatives of PGB2 and PGB3, respectively. The internal standard for the quantification of both species was [3,3,4,4-2H4]PGE2. A linear re...

journal_title：Lipids

authors： Ferretti A,Flanagan VP,Roman JM

更新日期：1982-11-01 00:00:00

abstract：:Plant sterols were found by gas liquid chromatography in the sterols of five species of aquatic vertebrates; mackerel (Scomber japonicus), rainbow trout (Salmo gairdnerii), smelt (Osmerus dentex), sardine (Sardinops melanosticta) and chimera (Chimera phantasma). The sterols of chimera liver, sardine flesh and sardine ...

journal_title：Lipids

authors： Takagi T,Sakai A,Hayashi K,Itabashi Y

更新日期：1979-01-01 00:00:00

abstract：:A rat liver cytosolic cholesteryl ester hydrolase (CEH) was purified 12,600-fold by ammonium sulfate precipitation, cation exchange chromatography and gel permeation high-performance liquid chromatography, with an overall yield of 20%. Its properties are compared to those of pancreatic CEH, with which it has sometimes...

journal_title：Lipids

authors： Ghosh S,Grogan WM

更新日期：1991-10-01 00:00:00

abstract：:The effect of phosphatidylserine and sterol carrier proteins on cholesterol exchange was determined using an assay not requiring separation of donor and acceptor membrane vesicles. Sterol carrier protein-2 (SCP2, also called nonspecific lipid transfer protein), but not fatty acid binding protein (FABP, also called ste...

journal_title：Lipids

authors： Schroeder F,Butko P,Hapala I,Scallen TJ

更新日期：1990-11-01 00:00:00

abstract：:Membrane lipids of photosynthetic organisms consist of glycerophospholipids and glyceroglycolipids. We investigated a method for the simultaneous quantitative analysis of neutral and acidic lipids using HPLC-ELSD, and quantified monogalactosyldiacylglycerol (MGDG), digalactosyldiacylglycerol (DGDG) and sulfoquinovosyl...

journal_title：Lipids

authors： Yunoki K,Sato M,Seki K,Ohkubo T,Tanaka Y,Ohnishi M

更新日期：2009-01-01 00:00:00

abstract：:The fatty acid (FA) profile of oysters generally reflects the dietary FA composition. Moreover, incorporation of FA into tissues is modulated by various metabolic factors, and final composition will depend upon the dietary sources, cumulative intake, and oysters' development stage. Thus, the aim of this study was to a...

journal_title：Lipids

authors： Rato A,Pereira LF,Joaquim S,Gomes R,Afonso C,Cardoso C,Machado J,Gonçalves JFM,Vaz-Pires P,Magnoni LJ,Matias AM,Matias D,Bandarra NM,Ozório ROA

更新日期：2019-09-01 00:00:00

abstract：:Linoleic acid was efficiently converted into the two major components of conjugated linoleic acid, 9Z,11E-octadecadienoic (1a) and 10E,12Z-octadecadienoic acid (1b) using either the superbase (n-butyllithium/potassium tert-butoxide) or by simply refluxing with KOH in 1-butanol. In turn, 1a and 1b were separated from e...

journal_title：Lipids

authors： Chen CA,Lu W,Sih CJ

更新日期：1999-08-01 00:00:00

abstract：:Fatty acid composition of plasma phospholipids (PL), triglycerides (TG), and sterol esters (STE) was determined by high-resolution capillary gas-liquid chromatography in 22 obese children (age: 13.7 +/- 1.4 y, body weight relative to normal weight for height: 170 +/- 24%, mean +/- SD) and compared with data obtained i...

journal_title：Lipids

authors： Decsi T,Molnár D,Koletzko B

更新日期：1996-03-01 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 4,4'-diethylamino-ethoxyhexestrol (DH) on acid esterase in rat liver was studied in vivo and in vitro. The acid esterase activity in the livers of rats treated with 0.125% DH for 1 week was found to decrease more than 60% as compared with that in untreated rats. The addition of DH to the incubation mediu...

journal_title：Lipids

authors： Kasama K,Yoshida K,Takeda S,Tsujimura R,Hasegawa S

更新日期：1976-10-01 00:00:00

abstract：:HMG-CoA reductase (HMGCR) is an enzyme involved in cholesterol synthesis. To investigate the contribution of the HMGCR gene to lipids and lipoprotein subfractions in different ethnicities, we performed an association study in the Multi-Ethnic Study of Atherosclerosis (MESA). In total, 2,444 MESA subjects [597 African-...

journal_title：Lipids

authors： Chen YC,Chen YD,Li X,Post W,Herrington D,Polak JF,Rotter JI,Taylor KD

更新日期：2009-08-01 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：:The distribution of dolichol in rat liver was studied. Upon high-speed centrifugation, 9% of the total tissue dolichol was recovered in the supernatant. Dolichol was enclosed in vesicles and in lipidic particles which were isolated by gel filtration and density gradient centrifugation. The particles had a diameter of ...

journal_title：Lipids

authors： Löw P,Peterson E,Edlund C,Brunk U,Appelkvist EL

更新日期：1992-01-01 00:00:00

abstract：:The uptake of lipid from the yolk by the yolk sac membrane of the chick embryo is accompanied by the rapid esterification of a large proportion of the yolk cholesterol. This could arise from enhanced acyl-CoA:cholesterol acyltransferase (ACAT) activity and/or inhibition of cholesteryl ester hydrolase (CEH) activity. T...

journal_title：Lipids

authors： Shand JH,West DW,McCartney RJ,Noble RC,Speake BK

更新日期：1993-07-01 00:00:00

abstract：:An experiment examined delta9 desaturase activity and FA composition in subcutaneous adipose tissue in two differing breeds of cattle. Jersey-sired cattle had significantly higher rates of desaturase activity than Limousin-sired cattle (1.55 vs. 0.75 nmol/mg protein/min). This difference was also demonstrated by a low...

journal_title：Lipids

authors： Siebert BD,Pitchford WS,Kruk ZA,Kuchel H,Deland MP,Bottema CD

更新日期：2003-05-01 00:00:00

abstract：:We have developed cultures of smooth muscle cells (SMC) isolated from arterial hypercholesterolemic chicks (cholesterol-SMC). These cultures are suitable for the study at the molecular level of the changes in arterial SMC induced by a cholesterol diet. By using a strong dose of cholesterol (5%) for 10 d, we obtained v...

journal_title：Lipids

authors： Carazo A,Alejandre J,Diaz R,Ríos A,Castillo M,Linares A

更新日期：1998-02-01 00:00:00

abstract：:The diglyceride species of phosphatidylcholines from livers of male rats after treatment of the animals with ethionine (1 mg/g divided among 4 doses 2 hr apart), phenobarbital (80 mg/kg each day for 3 days), or a combination of the two drugs were determined using gas chromatography. Ethionine treatment greatly elevate...

journal_title：Lipids

authors： Dyer RA,Klopfenstein WE

更新日期：1977-11-01 00:00:00

abstract：:Using the spectrofluorimetric method described by Wittenauer et al. [Wittenauer, L.A., Shirai, K., Jackson, R.L., and Johnson, J.D. (1984) Biochem. Biophys. Res. Commun. 118, 894-901] for phospholipase A2 (PLA2) measurement, we have detected a phospholipase activity in Ailsa Craig and in mutant rin tomatoes at their n...

journal_title：Lipids

authors： Rouet-Mayer MA,Valentova O,Simond-Côte E,Daussant J,Thévenot C

更新日期：1995-08-01 00:00:00

abstract：:Because of the known advantages of coupling high performance liquid chromatography with mass spectrometry (HPLC-MS) in biological fluids, studies on the reversed-phase HPLC-MS system for direct analysis of conjugated bile acids in human bile samples are described. Ten samples of gallbladder bile of apparently healthy ...

journal_title：Lipids

authors： Mingrone G,Greco AV,Boniforti L,Passi S

更新日期：1983-01-01 00:00:00

abstract：:The subcellular distribution of the enzymes of triacylglycerol biosynthesis has been studied in developing oilseed rape. All in vitro enzymatic activities from oleoyl-CoA to triacylglycerol were sufficient to account for the known rate of oleate deposition in triacylglycerol in vivo. The enzymatic activities from oleo...

journal_title：Lipids

authors： Murphy DJ

更新日期：1988-03-01 00:00:00

abstract：:The initial steps in the autoxidation of CLA methyl ester are poorly understood. The aim of this study was to determine the stereochemistry of the hydroperoxides formed during autoxidation of CLA methyl ester in the presence of a good hydrogen atom donor. For this purpose, 9-cis,11-trans CLA methyl ester was autoxidiz...

journal_title：Lipids

authors： Hämäläinen TI,Sundberg S,Hase T,Hopia A

更新日期：2002-06-01 00:00:00

abstract：:An important enzyme involved in phospholipid turnover is the acyl-CoA: lysophosphatidylcholine acyltransferase (LPCAT). Here, we report characterization of a newly discovered human LPCAT (LPCAT3), which has distinct substrate preferences strikingly consistent with a role in phosphatidylcholine (PtdCho) remodeling and ...

journal_title：Lipids

authors： Kazachkov M,Chen Q,Wang L,Zou J

更新日期：2008-10-01 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：:The effect of 1.7-2.2 mg/day oral phenobarbital over short (1 MO) and long term (6-24 MO) treatment on primary bile acid (BA) secretion, composition, synthesis, pool size, and enterohepatic cycling rates as well as phospholipid (PL) and cholesterol (C) secretion rates and biliary composition was determined in 12 asymp...

journal_title：Lipids

authors： Redinger RN

更新日期：1979-03-01 00:00:00

abstract：:While there are many reports of studies that fed arachidonic acid (AA) to animals, there are very few reports of AA feeding to humans under controlled conditions. This 130-d study was conceived as a controlled, symmetrical crossover design with healthy, adult male volunteers. They lived in the metabolic research unit ...

journal_title：Lipids

authors： Nelson GJ,Kelley DS,Emken EA,Phinney SD,Kyle D,Ferretti A

更新日期：1997-04-01 00:00:00

abstract：:Usually, the chemical structures of cerebrosides in sea creatures are more complicated than those from terrestrial plants and animals. Very little is known about the method for high-throughput molecular profiling of cerebrosides in sea cucumbers. In this study, cerebrosides from four species of edible sea cucumbers, s...

journal_title：Lipids

authors： Jia Z,Cong P,Zhang H,Song Y,Li Z,Xu J,Xue C

更新日期：2015-07-01 00:00:00