Abstract：
:The role of nuclear membrane phospholipids as targets of phospholipases resulting in the generation of nuclear signaling messengers has received attention. In the present study, we have exploited the utility of electrospray ionization mass spectrometry to determine the phospholipid content of nuclei isolated from perfused hearts. Rat heart nuclei contained choline glycerophospholipids composed of palmitoyl and stearoyl residues at the sn-1 position with oleoyl, linoleoyl, and arachidonoyl residues at the sn-2 position. Diacyl molecular species were the predominant molecular subclass in the choline glycerophospholipids, with the balance of the molecular species being plasmalogens. In the ethanolamine glycerophospholipid pool from rat heart nuclei approximately 50% of the molecular species were plasmalogens, which were enriched with arachidonic acid at the sn-2 position. A 50% loss of myocytic nuclear choline and ethanolamine glycerophospholipids was observed in hearts rendered globally ischemic for 15 min followed by 90 min of reperfusion in comparisons with the content of these phospholipids in control perfused hearts. The loss of nuclear choline and ethanolamine glycerophospholipids during reperfusion of ischemic myocardium was partially reversed by the calcium-independent phospholipase A(2) (iPLA(2)) inhibitor bromoenol lactone (BEL), suggesting that the loss of nuclear phospholipids during ischemia/reperfusion is mediated, in part, by iPLA(2). Western blot analyses of isolated nuclei from ischemic hearts demonstrated that iPLA(2) is translocated to the nucleus after myocardial ischemia. Taken toghether, these studies have demonstrated that nuclear phospholipid mass decreases after myocardial ischemia by a mechanism that involves, at least in part, phospholipolysis mediated by iPLA2.
journal_name
J Lipid Resjournal_title
Journal of lipid researchauthors
Williams SD,Hsu FF,Ford DAkeywords:
subject
Has Abstractpub_date
2000-10-01 00:00:00pages
1585-95issue
10eissn
0022-2275issn
1539-7262journal_volume
41pub_type
杂志文章abstract：:Serum triglyceride (TG) levels are increased in extremely obese individuals, indicating abnormalities in lipid metabolism and insulin resistance. We carried out a genome scan for serum TG in 320 nuclear families segregating extreme obesity and normal weight. Three hundred eighty-two Marshfield microsatellite markers (...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：10.1194/jlr.M400391-JLR200
更新日期：2005-03-01 00:00:00
abstract：:Niemann-Pick disease, type C (NP-C), often associated with Niemann-Pick disease, type C1 (NPC1) mutations, is a cholesterol-storage disorder characterized by cellular lipid accumulation, neurodegeneration, and reduced steroid production. To study NPC1 function in vivo, we cloned zebrafish npc1 and analyzed its gene ex...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：10.1194/jlr.M012377
更新日期：2011-07-01 00:00:00
abstract：:Functions of the gut microbiome have a growing number of implications for host metabolic health, with diet being one of the most significant influences on microbiome composition. Compelling links between diet and the gut microbiome suggest key roles for various macronutrients, including lipids, yet how individual clas...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：10.1194/jlr.RA120000950
更新日期：2020-07-09 00:00:00
abstract：:High density lipoproteins (HDL) were isolated by a chromatographic procedure and subsequently fractionated on a DEAE cellulose (DE-52) column. Four fractions were separated and analyzed for lipid and protein composition and molecular weight. During ion exchange chromatography, one of the four fractions consistently co...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1981-09-01 00:00:00
abstract：:Lipid lamellae present in the outermost layer of the skin, the stratum corneum, form the main barrier for the diffusion of molecules through the skin. The presence of a unique 13 nm lamellar phase and its high crystallinity are characteristic for the stratum corneum lipid phase behavior. In the present study, small-an...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：10.1194/jlr.M500221-JLR200
更新日期：2005-12-01 00:00:00
abstract：:3-Hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase, the enzyme catalyzing the rate-limiting step in cholesterol biosynthesis, exists in one active (dephosphorylated) and one inactive (phosphorylated) form in liver microsomes obtained from several animal species. The present study was undertaken in order to dete...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1984-11-01 00:00:00
abstract：:In Refsum disease, disorders of peroxisome biogenesis, and rhizomelic chondrodysplasia punctata, pathological accumulation of phytanic acid results from impaired alpha-oxidation of this branched-chain fatty acid. Previous studies from this laboratory indicated that activation of phytanic acid to its CoA derivative pre...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1996-11-01 00:00:00
abstract：:An enzyme-coupled, colorimetric method for the assay of acyl-CoA synthetase is described. Acyl-CoA formed from fatty acid and CoA by acyl-CoA synthetase was dehydrogenated by acyl-CoA oxidase. Hydrogen peroxide produced was then converted into formaldehyde in the presence of methanol by catalase. The formaldehyde reac...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1991-10-01 00:00:00
abstract：:The Smith-Lemli-Opitz syndrome (SLOS) is a congenital birth defect syndrome caused by a deficiency of 3beta-hydroxysterol Delta(7)-reductase, the final enzyme in the cholesterol biosynthetic pathway. The patients have reduced plasma and tissue cholesterol concentrations with the accumulation of 7-dehydrocholesterol an...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1999-08-01 00:00:00
abstract：:Oxidative stress, hepatic steatosis, and mitochondrial dysfunction are key pathophysiological features of nonalcoholic fatty liver disease. A conjugated linoleic acid (CLA) mixture of cis9,trans11 (9,11-CLA) and trans10,cis12 (10,12-CLA) isomers enhanced the antioxidant/detoxifying mechanism via the activation of nucl...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：10.1194/jlr.M044032
更新日期：2014-05-01 00:00:00
abstract：:The activity of lipoprotein lipase isolated from rat postheparin plasma has been determined with synthetic lipids, in the presence and absence of apoprotein of the natural substrate very low density lipoprotein, as a function of medium ion-pair concentration of a number of different inorganic salts. The several kineti...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1976-05-01 00:00:00
abstract：:Niemann-Pick C1-like 1 (NPC1L1) is a recently identified protein that mediates intestinal cholesterol absorption and regulates biliary cholesterol excretion. The itineraries and kinetics of NPC1L1 trafficking remain uncertain. In this study, we have visualized movement of NPC1L1-enhanced green fluorescent protein (NPC...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：10.1194/jlr.M800145-JLR200
更新日期：2008-09-01 00:00:00
abstract：:Infusions of 2-deoxyglucose (2-DG) into intact, adrenalectomized, and adrenalectomized-hypophysectomized dogs caused increases in plasma free fatty acid (FFA) levels which could be reversed by infusing hexamethonium, or prevented by epidural anesthesia or destruction of the thoracic spinal cord. Similar infusions of 2...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1966-05-01 00:00:00
abstract：:Recent studies from our laboratory (Yancey, P.G., and R. W. St. Clair. 1992. Arterioscler. Thromb. 12: 1291-1304) have shown that cultured peritoneal macrophages from White Carneau (WC) pigeons clear cholesteryl esters at a slower rate than do macrophages from Show Racer (SR) pigeons (9% per 24 h vs. 42% per 24 h, res...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1994-12-01 00:00:00
abstract：:Gel-permeation chromatography on Sephadex LH-20, using ethanol as eluent, permits the resolution of neutral hydroxy lipids according to molecular size. The influence of molecular shape, functional groups, chain lengths, and degree of unsaturation, as well as the effect of the eluent on the elution pattern are discusse...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1970-03-01 00:00:00
abstract：:3alpha-Hydroxy-5-cholanoic acid (lithocholic acid) and some unidentified acids (one of them perhaps 3-hydroxy-cholest-5-en-26-oic acid) have been detected in the brains of guinea pigs afflicted with experimental "allergic" encephalomyelitis. None of the acids could be identified in comparable amounts of brain tissue f...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1969-01-01 00:00:00
abstract：:HDL plays crucial roles at multiple stages of the pathogenesis of atherosclerosis. AMP-activated protein kinase (AMPK) is a therapeutic candidate for the treatment of cardiovascular disease. However, the effect of AMPK activation on HDL functionality has not been established in vivo. We assessed the effects of pharmac...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：10.1194/jlr.M073270
更新日期：2017-08-01 00:00:00
abstract：:Human apolipoprotein E (apoE) is a constituent of plasma very low density and high density lipoproteins and is important in modulating the catabolism of remnants of triglyceride-rich lipoproteins. There are three common isoforms of apoE, designated apoE-2, E-3, and E-4, which are coded by three separate alleles (epsil...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1984-11-01 00:00:00
abstract：:The human retina is well-known to have unique lipid profiles enriched in long-chain polyunsaturated fatty acids (LC-PUFAs) and very long-chain polyunsaturated fatty acids (VLC-PUFAs) that appear to promote normal retinal structure and function, but the influence of diet on retinal lipid profiles in health and disease ...
journal_title：Journal of lipid research
pub_type： 临床试验,杂志文章
doi：10.1194/jlr.P065540
更新日期：2016-03-01 00:00:00
abstract：:Stearoyl-CoA desaturase (SCD) catalyzes the rate-limiting step in the cellular synthesis of monounsaturated fatty acids, mainly oleate (18:1) and palmitoleate (16:1), which are the major monounsaturated fatty acids of membrane phospholipids, cholesteryl esters, waxes, and triglycerides. The mouse expresses three well-...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：10.1194/jlr.m100433-jlr200
更新日期：2002-10-01 00:00:00
abstract：:The conditions for the preparation of laurylsarcosyltaurine from lauric acid and sarcosyltaurine, a crystalline dipeptide, are described. The preparation of sarcosyltaurine from the reaction of taurine and the mixed anhydride of benzyloxycarbonylsarcosine and isobutyl chloroformate is also described. ...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1976-03-01 00:00:00
abstract：:The dynamics of human apoE metabolism were explored by examining the effects of alimentary lipemia and postheparin lipolysis on the plasma level and lipoprotein distribution of apoE. In the studies of alimentary lipemia, fasting and postprandial plasma samples were obtained from five normal adult males, each of whom d...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1982-12-01 00:00:00
abstract：:Supernatant protein factor (SPF) and anionic phospholipids such as phosphatidylglycerol (PG) stimulate squalene epoxidase activity in rat liver microsomes by promoting [3H]squalene uptake as well as substrate translocation (Chin, J., and K. Bloch. 1984. J. Biol. Chem. 259: 11735-11738). This process is postulated to b...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1985-07-01 00:00:00
abstract：:Human striated muscle samples, from male control and Duchenne muscular dystrophy-affected children, were subjected to cluster-time-of-flight secondary ion mass spectrometry (cluster-ToF-SIMS) imaging using a 25 keV Bi(3)(+) liquid metal ion gun under static SIMS conditions. Spectra and ion density maps, or secondary i...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：10.1194/jlr.M700421-JLR200
更新日期：2008-02-01 00:00:00
abstract：:The transcriptional regulation of the rat cholesterol 7 alpha-hydroxylase gene (CYP7) by hormones and signal transduction pathways was studied by transient transfection assay of the promoter activity. HepG2 cells were transfected with deletion mutants of the CYP7 upstream region linked to the luciferase reporter gene....
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1995-11-01 00:00:00
abstract：:The antitumor effect of daily individual administration of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (2 g/kg body weight) in Balb/c mice bearing a transplantable thymoma was investigated. Mice received oleic acid (control group), EPA and DHA ethyl esters starting 10 days before tumor inoculation. Anal...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：2000-02-01 00:00:00
abstract：:Biliary cholesterol secretion is ordinarily tightly coupled to phosphatidylcholine (PC) secretion. Bile PCs are distinct in composition and predominantly composed of molecular species with 16:0 in the sn-1 position and 18:2 and 18:1 in the sn-2 position. In an attempt to acutely change the composition of biliary PCs a...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1991-06-01 00:00:00
abstract：:In vitro, -polylysine (EPL) strongly inhibited the hydrolysis of trioleoylglycerol emulsified with phosphatidylcholine (PC) and taurocholate by either pancreatic lipase or carboxylester lipase. The EPL concentration required for 50% inhibition of pancreatic lipase, 0.12 microM, was eight times lower than the concentra...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：10.1194/jlr.M600168-JLR200
更新日期：2006-08-01 00:00:00
abstract：:A simplified method for the preparation of the Dittmer-Lester spray for the detection of phospholipids on thin-layer chromatograms is described. ...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：
更新日期：1968-05-01 00:00:00
abstract：:Thus far, liver, intestine, heart, and placenta have been shown to secrete apolipoprotein (apo)B-containing lipoproteins. In the present study, we first investigated lipoproteins in human follicular fluid (FF), surrounding developing oocytes within the ovary, as well as in corresponding plasma samples (n = 12). HDL ch...
journal_title：Journal of lipid research
pub_type： 杂志文章
doi：10.1194/jlr.M005181
更新日期：2010-08-01 00:00:00
