HPLC analysis of desmosterol, 7-dehydrocholesterol, and cholesterol.

abstract：:Using primary rat hepatocyte cultures, the potency of several garlic-derived organosulfur compounds to inhibit cholesterol biosynthesis in toto as well as at early and late steps of this metabolic pathway was compared. Concerning early steps, allicin significantly inhibited incorporation of [14C]acetate into nonsaponi...

journal_title：Lipids

authors： Gebhardt R,Beck H

更新日期：1996-12-01 00:00:00

abstract：:Phosphatidylinositol (PtdIns) and phosphatidylinositol 4-phosphate (PtdIns4P) kinase activities in plasma membranes isolated from canine left ventricle were partially characterized, and their sensitivity to a number of intracellular variables was established. PtdIns and PtdIns4P kinase activities were estimated by the...

journal_title：Lipids

authors： Kasinathan C,Xu ZC,Kirchberger MA

更新日期：1989-09-01 00:00:00

abstract：:We have previously shown that adipose cells from young genetically obese Zucker rats are characterized by very high metabolic activity together with an increase in a wide range of membrane-mediated functions. The aim of the present study was to examine whether the physical properties of the membranes and the compositi...

journal_title：Lipids

authors： Guerre-Millo M,Guesnet P,Guichard C,Durand G,Lavau M

更新日期：1994-03-01 00:00:00

abstract：:A 10-hydroxy stearic acid-containing lipid from Cryptosporidium parvum was purified by thin-layer chromatography and analyzed by infrared spectroscopy, fast-atom bombardment mass spectrometry, 1H and 31P nuclear magnetic resonance spectroscopy, and was identified as phosphatidyl-ethanolamine. ...

journal_title：Lipids

authors： Schrum DP,Alugupalli S,Kelly ST,White DC,Fayer R

更新日期：1997-07-01 00:00:00

abstract：:In tests with purified menhaden oil at 37C and with squalene at 37C and 50C, unsubstituted tocol, 7,8-dimethyl tocol (gamma-tocol), and 8-methyl tocol (sigma-tocol) were superior antioxidants to 5,7-dimethyl tocol and 5,7,8-trimethyl tocol (alpha-tocol). In contrast to previous reports, there were no differences in th...

journal_title：Lipids

authors： Olcott HS,Van der Veen J

更新日期：1968-07-01 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：: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：: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：:Previous studies from our laboratory have shown that retinitis pigmentosa (RP), a family of hereditary retinal degenerations, is often accompanied by abnormal levels of cholesterol or polyunsaturated fatty acids. The requirement of the retina for n-3 fatty acids is well known, and a defect in the supply of these lipid...

journal_title：Lipids

authors： Huq L,McLachlan T,Hammer HM,Bedford D,Packard CJ,Shepherd J,Converse CA

更新日期：1993-11-01 00:00:00

abstract：:The ganglioside and neutral glycosphingolipid composition of adult monkey small and large intestinal mucosa were characterized and compared. GM3, GM2 and GD1A were found to be the principal gangliosides in each of these tissues. Dihexosylceramide was the major neutral glycosphingolipid of both organs. The total conten...

journal_title：Lipids

authors： Dahiya R,Brown MD,Brasitus TA

更新日期：1986-02-01 00:00:00

abstract：:Concentrations of synthetic antioxidants butylated hydroxyanisole, butylated hydroxytoluene, and tert-butyl hydroquinone were quantified using a high-performance liquid chromatograph with spectrofluorometric detector. The antioxidants were separated and eluted on a reversed-phase column by gradient of a mixture of H2O...

journal_title：Lipids

authors： Yankah VV,Ushio H,Ohshima T,Koizumi C

更新日期：1998-11-01 00:00:00

abstract：:In experiments with 4 different types of cells, we evaluated the cholesterogenic activity by incorporation of 14C-acetic acid into cholesterol and digitonin-precipitable sterols. In every case, the cholesterogenesis appeared considerably faster when expressed as digitonid than when expressed as real cholesterol produc...

journal_title：Lipids

authors： Tabacik C,Aliau S,Crastes de Paulet A

更新日期：1983-09-01 00:00:00

abstract：:Four Canadian varieties of potatoes were examined for their lipid composition. Lipids, extracted with chloroformmethanol, were shown by TLC and column chromatography to consist of 16.5% neutral lipids, 45.5% phospholipids and 38.1% glycolipids. Among the phospholipids and glycolipids, phosphatidyl choline, phosphatidy...

journal_title：Lipids

authors： Lepage 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：:The concentrations of nonesterified fatty acids and glycerol in rat parametrial adipose tissue increased at peak lactation. Adipose tissue from lactating rats showed higher rates of release of nonesterified fatty acids and glycerol when incubated in vitro than did tissue from nonlactating rats, but there was a substan...

journal_title：Lipids

authors： Smith RW,Walsh A

更新日期：1976-05-01 00:00:00

abstract：:This paper represents the first synthesis, spectroscopic characterization, and antitumor evaluation of F-, N-, and S-containing C4alpha-FA derivatives of podophyllotoxin. In a synthetic strategy, a FA unit of 4-O-podophyllotoxinyl 12-hydroxyoctadec-Z-9-enoate 2, a derivative of podophyllotoxin, was functionalized at t...

journal_title：Lipids

authors： Mustafa J,Khan SI,Ma G,Walker LA,Khan IA

更新日期：2005-04-01 00:00:00

abstract：:The present study aimed to elucidate the effective phylogenetic specificity of distribution of a cis-4,7,10, trans-13-22:4 (22:4(n-9)Delta13trans) among pectinids. For this purpose, we extended the analysis of membrane glycerophospholipids FA composition to 13 species of scallops, covering 11 genera and 7 tribes repre...

journal_title：Lipids

authors： Kraffe E,Grall J,Palacios E,Guerra C,Soudant P,Marty Y

更新日期：2010-05-01 00:00:00

abstract：:Tritium-labeled 14alpha-methyl-5alpha-ergost-8-enol and 5alpha-ergosta-8,14-dienol were converted to brassicasterol and poriferasterol in Ochromonas malhamensis. This indicates that the organism can rearrange these sterol structures so that they contain the naturally occurring 5(6) double bond, and suggests that O. ma...

journal_title：Lipids

authors： Adler JH,Patterson GW

更新日期：1976-08-01 00:00:00

abstract：:We have reported previously that platelet-activating factor (PAF) interacts with the neuronal cell line NG108-15 (neuroblastoma X glioma hybrid) and the pheochromocytoma cell line, PC12. PAF acts on these cells by raising levels of intracellular free calcium ions. In the present report, we extend these studies. PAF in...

journal_title：Lipids

authors： Kornecki E,Ehrlich YH

更新日期：1991-12-01 00:00:00

abstract：:We previously reported that phospholipids markedly affected the uptake of carotenoids solubilized in mixed micelles by human intestinal Caco-2 cells. In the present study, we found that two classes of dietary glyceroglycolipids and the corresponding lysoglyceroglycolipids affected uptake of β-carotene and lutein by di...

journal_title：Lipids

authors： Kotake-Nara E,Yonekura L,Nagao A

更新日期：2015-09-01 00:00:00

abstract：:The effect of simvastatin, a hypocholesterolemic drug, on the biosynthesis of arachidonic acid was studied in obese and lean Zucker rats. After administration of 2 mg/kg body weight/d for 13 d, delta 6 and delta 5 desaturase activities were measured in liver microsomes at two substrate concentrations. In untreated rat...

journal_title：Lipids

authors： Georges B,Blond JP,Maniongui C,Bézard J

更新日期：1993-01-01 00:00:00

abstract：:Fatty acids are involved in the regulation of inflammatory responses in obesity. However, despite being the largest dietary fatty-acid class, effects of 18-carbon fatty acids with different degrees of saturation on inflammatory, metabolic, and thermogenic markers have not been well studied. Therefore, the objective of...

journal_title：Lipids

authors： Shin S,Ajuwon KM

更新日期：2018-09-01 00:00:00

abstract：:[1-14C]alpha-Linolenic acid was incubated with a particulate fraction of homogenate of leaves of the meadow buttercup (Ranunculus acris L.). The main product was a divinyl ether fatty acid, which was identified as 12-[1'(Z),3'(Z)-hexadienyloxy]-9(Z),11(E)-dodecadienoic acid. Addition of glutathione peroxidase and redu...

journal_title：Lipids

authors： Hamberg M

更新日期：1998-11-01 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：:FA with varying chain lengths and an alpha-methyl group and/or a sulfur in the beta-position were tested as peroxisome proliferator-activated receptor (PPAR)alpha, -delta(beta), and -gamma ligands by transient transfection in COS-1 cells using chimeric receptor expression plasmids, containing cDNAs encoding the ligand...

journal_title：Lipids

authors： Larsen LN,Granlund L,Holmeide AK,Skattebøl L,Nebb HI,Bremer J

更新日期：2005-01-01 00:00:00

abstract：:Hydrolysis of synthetic triglycerides by rattlesnake and leopard shark pancreatic enzymes revealed striking differences in specificity, depending on the presence or absence of sodium taurocholate. Without added sodium taurocholate the classical specificity of pancreatic lipase was expressed. Rattlesnake enzymes, in th...

journal_title：Lipids

authors： Patton JS

更新日期：1975-09-01 00:00:00

abstract：:The importance of n-6 and n-3 polyunsaturated fatty acids (PUFA) in neonatal development, particularly with respect to the developing brain and retina, is well known. This review combines recent information from basic science and clinical studies to highlight recent advances in knowledge on PUFA metabolism and areas w...

journal_title：Lipids

authors： Innis SM,Sprecher H,Hachey D,Edmond J,Anderson RE

更新日期：1999-02-01 00:00:00

abstract：:The aim of the present study was to characterize plasma lipids and lipoprotein cholesterol and glucose concentrations in hamsters fed either cis-9,trans-11 CLA (9c,11 tCLA); trans-10,cis-12 CLA (10t,12c CLA); or linoleic acid (LA) on the accumulation of aortic cholesterol in hypercholesterolemic hamsters. One hundred ...

journal_title：Lipids

authors： Wilson TA,Nicolosi RJ,Saati A,Kotyla T,Kritchevsky D

更新日期：2006-01-01 00:00:00

abstract：:In previous studies, zinc-deficient rats force-fed a diet with coconut oil as the major dietary fat developed a fatty liver, whereas zinc-deficient rats force-fed a diet with linseed oil did not. The present study was conducted to elucidate the reason for this phenomenon. In a bifactorial experiment, rats were fed zin...

journal_title：Lipids

authors： Eder K,Kirchgessner M

更新日期：1995-01-01 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