Review of chemical syntheses of 7-keto-delta5-sterols.

abstract：:Accurate quantification of the major classes and subfractions of human serum lipoproteins is an important analytical need in the characterization and evaluation of therapy of lipid and lipoprotein abnormalities. For calibrating the analytic ultracentrifuge (AnUC), we routinely use a Beckman calibration wedge cell with...

journal_title：Lipids

authors： Kahlon TS,Adamson GL,Glines LA,Lindgren FT,Laskaris MA,Shore VG

更新日期：1984-07-01 00:00:00

abstract：:The antioxidant effects of natural estrogens (estrone, E1; 17 beta-estradiol), synthetic estrogens (17 alpha-ethynylestradiol, EE2; mestranol, MES; diethylstilbestrol, DES) and catecholestrogens (2-hydroxyestradiol; 4-hydroxyestradiol, 4-OHE2) on lipid peroxidation induced by different means in rat liver microsomes we...

journal_title：Lipids

authors： Lacort M,Leal AM,Liza M,Martín C,Martínez R,Ruiz-Larrea MB

更新日期：1995-02-01 00:00:00

abstract：:The reciprocal replacement of DHA by docosapentaenoic acid (DPAn-6) was studied in rats that consumed an n-3 FA-deficient or n-3 FA-adequate diet. Dams were fed the two experimental diets from weaning and throughout pregnancy and lactation. Their pups were then fed the respective diets after weaning. Cortex FA analysi...

journal_title：Lipids

authors： Greiner RS,Catalan JN,Moriguchi T,Salem N Jr

更新日期：2003-04-01 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：:One of the main biological systems that can be used as a model for studying the molecular mechanisms involved in membrane fusion is the formation of the nuclear envelope (NE). NE assembly to form the male pronucleus at fertilization occurs by binding of NE membrane precursor vesicles to chromatin and their fusion. MV1...

journal_title：Lipids

authors： Larijani B,Dufourc EJ

更新日期：2006-10-01 00:00:00

abstract：:During our ongoing project on the biosynthesis of R-(+)-octane-1,3-diol the metabolism of linoleic acid was investigated in stored apples after injection of [1-14C]-, [9,10,12,13-3H]-,13C18- and unlabeled substrates. After different incubation periods the products were analyzed by gas chromatography-mass spectroscopy ...

journal_title：Lipids

authors： Beuerle T,Schwab W

更新日期：1999-04-01 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：: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：:Apolipoprotein E (apo E) plays an essential role in lipoprotein metabolism, where it is involved in the clearance of chylomicrons and very low density lipoproteins. Apart from some rare variants, apo E exists in three common isoforms (E2, E3, and E4). The different isoforms have not only been associated with different...

journal_title：Lipids

authors： Wiebe C,Holzem G,Wielckens K,Klingler KR

更新日期：2000-01-01 00:00:00

abstract：:New methods and analytical approaches are important to challenge and/or validate established beliefs in any field including the metabolism of polyunsaturated fatty acids (PUFA; polyunsaturates). Four methods that have recently been applied toward obtaining a better understanding of the homeostasis of PUFA include the ...

journal_title：Lipids

authors： Cunnane SC

更新日期：2001-09-01 00:00:00

abstract：:The incorporation of arachidonic acid (AA) as compared to eicosapentaenoic acid (EPA) into human platelet phospholipids was tested by incubating washed platelets with a known mixture of [3H]AA and [14C]EPA. Following incubation, the platelet lipids were extracted, the individual phospholipids--phosphatidylcholine (PC)...

journal_title：Lipids

authors： Weaver BJ,Holub BJ

更新日期：1985-11-01 00:00:00

abstract：:Recently, lipases have been purified from mammalian, bacterial, fungal and plant sources by different methodologies. Purified lipases subsequently have been characterized for molecular size, metal binding capabilities, glycoside and phosphorus contents, and substrate specificities. Primary structures of several lipase...

journal_title：Lipids

authors： Antonian E

更新日期：1988-12-01 00:00:00

abstract：:The presence of leptin receptors in white adipose tissue (WAT) suggests a type of peripheral control during the development of obesity and other metabolic disorders. Both diet composition and exercise influence serum leptin; however, the effect of their combination on long-term WAT leptin metabolism is unknown. In thi...

journal_title：Lipids

authors： de Queiroz KB,Guimarães JB,Coimbra CC,Rodovalho GV,Carneiro CM,Evangelista EA,Guerra-Sá R

更新日期：2014-01-01 00:00:00

abstract：:Essential fatty acids are structural components of all tissues and are indispensable for cell membrane synthesis; the brain, retina and other neural tissues are particularly rich in long-chain polyunsaturated fatty acids (LC-PUFA). These fatty acids serve as specific precursors for eicosanoids, which regulate numerous...

journal_title：Lipids

authors： Uauy R,Hoffman DR,Peirano P,Birch DG,Birch EE

更新日期：2001-09-01 00:00:00

abstract：:A maternal high fat diet (HFD) can have adverse effects on skeletal muscle development. Skeletal muscle PLIN proteins (PLIN2, 3 and 5) are thought to play critical roles in lipid metabolism, however effects of HFD on PLIN and lipases (HSL, ATGL, CGI-58) in mothers as well as their offspring have yet to be investigated...

journal_title：Lipids

authors： MacPherson RE,Castelli LM,Miotto PM,Frendo-Cumbo S,Milburn A,Roy BD,LeBlanc PJ,Ward WE,Peters SJ

更新日期：2015-02-01 00:00:00

abstract：:Synthetic activators of peroxisome proliferator-activated receptors (PPAR)-alpha and -gamma are capable of reducing macrophage foam cell cholesterol accumulation through the activation of genes involved in cholesterol homeostasis. Since conjugated linoleic acids (CLA) were also demonstrated to activate PPARalpha and P...

journal_title：Lipids

authors： Ringseis R,Wen G,Saal D,Eder K

更新日期：2008-10-01 00:00:00

abstract：:Lipoprotein(a) [Lp(a)] represents a class of lipoprotein particles having as a protein moiety apoB-100 linked by a single disulfide bond to apolipoprotein(a) [apo(a)], a multikringle structure with a high degree of homology with plasminogen. A recognized feature of Lp(a) is its instability on storage caused by attenda...

journal_title：Lipids

authors： Scanu AM,Hinman J,Pfaffinger D,Edelstein C

更新日期：2004-06-01 00:00:00

abstract：:Competitive inhibitors of 3-hydroxy-3-methylglutaryl-CoA reductase improve hypercholesterolemia. However, reports about the effects of these agents on bile acid synthesis, the metabolic pathway of cholesterol, are conflicting. We studied the short-term effect on one of these agents, pravastatin, on bile acid synthesis...

journal_title：Lipids

authors： Yoshida T,Honda A,Shoda J,Abei M,Matsuzaki Y,Tanaka N,Miyazaki H,Osuga T

更新日期：1997-08-01 00:00:00

abstract：:Chlorpromazine (CPZ), a major tranquilizer, was found to be a potent inhibitor of lecithin:cholesterol acyltransferase (LCAT, EC 2.3.1.43) in the plasma of normal man, rat, rabbit and dog in vitro. The inhibitory effect of CPZ reached 35-50% at 0.5 mM depending on species; dog plasma LCAT appeared to be somewhat more ...

journal_title：Lipids

authors： Bell FP,Hubert EV

更新日期：1981-11-01 00:00:00

abstract：:Chloroquine is shown to be a potent inhibitor of cholesterol biosynthesis by isolated rat hepatocytes. Half-maximal inhibition of cholesterogenesis occurs at ca. 10 micro M chloroquine. Chloroquine does not affect fatty acid synthesis by isolated hepatocytes. This suggests that chloroquine acts on the cholesterol bios...

journal_title：Lipids

authors： Beynen AC,van der Molen AJ,Geelen MJ

更新日期：1981-06-01 00:00:00

abstract：:The phospholipid composition of gill tissue from thermally acclimated rainbow trout, Salmo gairdneri, was determined by Iatroscan analysis following an initial development of the chromarods in a non-polar solvent to remove neutral lipids. Standard curves for all phospholipids, although linear through most of the conce...

journal_title：Lipids

authors： Hazel JR

更新日期：1985-08-01 00:00:00

abstract：:The wax material in the secretion of a scale insect,Ceroplastes pseudoceriferus Green was analyzed chemically with special interest to the composition of higher fatty acids and higher alcohols. The wax consists of 34.2% fatty acids, 27.1% unsaponifiable matter and 29.5% resin acids. The fatty acids were found to be a ...

journal_title：Lipids

authors： Tamaki Y

更新日期：1966-09-01 00:00:00

abstract：:The weight loss supplement conjugated linoleic acid (CLA) consists of an equal mixture of trans-10,cis-12 (10,12) and cis-9,trans-11 (9,11) isomers. However, high levels of mixed CLA isomers, or the 10,12 isomer, causes chronic inflammation, lipodystrophy, or insulin resistance. We previously demonstrated that 10,12 C...

journal_title：Lipids

authors： Reardon M,Gobern S,Martinez K,Shen W,Reid T,McIntosh M

更新日期：2012-11-01 00:00:00

abstract：:The conversion of [14C]-labeled compounds such as acetate, glucose, pyruvate and palmitate into CO2, glyceride-glycerol, glyceride fatty acids and total lipids was monitored in the average and matching adipocyte (with respect to size) preparations from young (6-9 wk) and old (age 56-60 wk) male Sprague-Dawley rats. Th...

journal_title：Lipids

authors： Jamdar SC,Osborne LJ,Wells GN

更新日期：1986-07-01 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：:Separation of thecis- andtrans-isomers of 1,2-benzylidene glyceryl esters has not yet been achieved by column or gas liquid chromatography. However these isomers were separated by thin layer chromatography in the present study and the parent cyclic alcohols regenerated by alkaline hydrolysis. ...

journal_title：Lipids

authors： Johnson CB

更新日期：1973-08-01 00:00:00

abstract：:The influence of diet on the kinetics of the overt form of rat liver mitochondrial carnitine palmitoyltransferase (CPT I; EC 2.3.1.21) was studied using rats fed either a low-fat diet (3% w/w fat), or diets which were supplemented with either olive oil (OO), safflower oil (SO) or menhaden (fish) oil (MO) to 20% w/w of...

journal_title：Lipids

authors： Power GW,Cake MH,Newsholme EA

更新日期：1997-01-01 00:00:00

abstract：:Hepatocytes isolated from rainbow trout fed on diets containing either fish oil or olive oil were incubated with individual odd-chain length unsaturated fatty acids (19:1n-9, 19:2n-6, 19:3n-3, 21:2n-6, 21:3n-6, 21:4n-6, 21:3n-3, and 21:5n-3) to examine whether these fatty acids were substrates for modification by desa...

journal_title：Lipids

authors： Rodríguez C,Henderson RJ,Porter AE,Dick JR

更新日期：1997-06-01 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：:Corn oil, peanut oil and randomized peanut oil exhibit different atherogenic potentials; peanut oil being more atherogenic than the other oils. This study was conducted to ascertain if the atherogenicity of these oils was related to their rates of lipolysis. Using both pancreatic lipase and milk lipoprotein lipase (LP...

journal_title：Lipids

authors： Kim HK,Kritchevsky D

更新日期：1983-11-01 00:00:00