Search results for "Triglycerides"

showing 10 items of 301 documents

Chemometric determination of lipidic parameters in serum using ATR measurements of dry films of solvent extracts

2013

Attenuated total reflectance (ATR) infrared spectroscopy of dried organic extracts of serum samples has been evaluated as a fast method for the determination of triglycerides, cholesterol, high density lipoprotein (HDL) and low density lipoprotein (LDL). After careful selection of solvents based on green parameters, serum samples were extracted using hexane-isopropanol and ethyl acetate-ethanol mixtures. Microscopy studies and comparison with standard spectra were performed in order to investigate whether the proposed methodology is suitable for the quantification of lipids in serum samples. The results of these preliminary studies confirmed that the variations in the IR spectra of sample e…

AnalyteChromatographySpectrophotometry InfraredCholesterolCholesterol HDLExtraction (chemistry)Analytical chemistryInfrared spectroscopyCholesterol LDLBiochemistryAnalytical ChemistrySolventchemistry.chemical_compoundchemistryLow-density lipoproteinAttenuated total reflectionSpectroscopy Fourier Transform InfraredPartial least squares regressionSolventsElectrochemistryHumansEnvironmental ChemistryTriglyceridesSpectroscopyThe Analyst
researchProduct

Accumulation of ApoE-containing triglyceride-rich lipoproteins in normolipidemic men with premature coronary artery disease

2000

ApoE triglycerides lipoproteins coronary artery disease
researchProduct

Accumulation of apoE-enriched triglyceride-rich lipoproteins in patients with coronary artery disease.

2005

Triglycerides (TGs) are vehicled by multiple particles with different abilities to promote atherosclerosis. Among plasma TG-rich lipoproteins (TRLs), subspecies may or may not contain apolipoprotein E (apoE) molecules: in this study, we evaluated the relative contribution of apoE-rich and apoE-poor TRLs to coronary atherosclerosis. We selected a group of males with premature coronary artery disease (CAD) without any of the classical nonlipid risk factors and/or high plasma lipid levels and evaluated the plasma concentration of TRL subspecies in comparison with healthy controls. Patients with CAD and controls had total cholesterol and TG levels within the normal range (despite slightly, even…

Apolipoprotein EAdultMalemedicine.medical_specialtyEndocrinology Diabetes and MetabolismCoronary Artery DiseaseChromatography AffinityApolipoproteins ECoronary artery diseasechemistry.chemical_compoundEndocrinologyApolipoproteins EInternal medicinemedicineHumansInsulinCoronary atherosclerosisTriglyceridesbiologyTriglycerideCholesterolCholesterol HDLLipoprotein(a)Cholesterol LDLMiddle Agedmedicine.diseaseEndocrinologyapoE triglyceride-rich lipoproteins coronary artery diseaseLogistic ModelschemistryMultivariate Analysisbiology.proteinlipids (amino acids peptides and proteins)Electrophoresis Polyacrylamide GelLipoproteinLipoprotein(a)Metabolism: clinical and experimental
researchProduct

Influence of microsomal triglyceride transfer protein promoter polymorphism -493 GT on fasting plasma triglyceride values and interaction with treatm…

2005

Familial hypercholesterolaemia (FH) is an autosomal dominant disease characterized by elevated levels of low-density lipoprotein-cholesterol (LDL-C). Phenotypic expression is highly variable, being influenced by diet, age, gender, body mass index, apolipoprotein E genotype and type of LDL-receptor gene mutation. Microsomal triglyceride (TG) transfer protein (MTP) is a protein involved in lipid metabolism. Polymorphism MTP -493 GT has been shown to modulate lipid levels in several populations. To analyse the effect of this polymorphism in the lipid phenotype expression of FH and treatment response, we studied a sample of 222 Spanish FH patients, of whom 147 were studied before and after trea…

Apolipoprotein EMaleAtorvastatinPolymerase Chain ReactionMicrosomal triglyceride transfer proteinBody Mass Indexchemistry.chemical_compoundAtorvastatinGeneral Pharmacology Toxicology and PharmaceuticsPromoter Regions GeneticGenetics (clinical)Polymorphism Single-Stranded ConformationalGeneticsbiologyAutosomal dominant traitFastingLipoproteins LDLCholesterolPhenotypeMolecular Medicinelipids (amino acids peptides and proteins)Femalemedicine.drugmedicine.medical_specialtyHeterozygoteGenotypeLipoproteinsHyperlipoproteinemia Type IIApolipoproteins ESex FactorsInternal medicineGeneticsmedicineHumansPyrrolesMolecular BiologyAllelesTriglyceridesPolymorphism GeneticTriglycerideCholesterolGenetic VariationCholesterol LDLDNALipid MetabolismEndocrinologychemistryHeptanoic AcidsPharmacogeneticsMutationbiology.proteinHydroxymethylglutaryl-CoA Reductase InhibitorsCarrier ProteinsBody mass indexPharmacogeneticsPharmacogenetics and genomics
researchProduct

Serum lipid responses to phytosterol-enriched milk in a moderate hypercholesterolemic population is not affected by apolipoprotein E polymorphism or …

2011

Background/Objectives: The importance of both low-density lipoprotein cholesterol (LDLc) size and the apolipoprotein E (Apo E) in the atherogenic process is known, but there is little information with regard to the effect of phytosterols (PS) on these parameters. The aim of this study was to evaluate the influence of PS on lipid profile and LDLc size according to Apo E genotype. Subjects/Methods: This was a randomized parallel trial employing 75 mild-hypercholesterolemic subjects and consisting of two 3-month intervention phases. After 3 months of receiving a standard healthy diet, subjects were divided into two intervention groups: a diet group (n = 34) and a diet+PS group (n = 41) that re…

Apolipoprotein EMalemedicine.medical_specialtyGenotype030309 nutrition & dieteticsPopulationHypercholesterolemiaMedicine (miscellaneous)030204 cardiovascular system & hematology03 medical and health scienceschemistry.chemical_compound0302 clinical medicineApolipoproteins EDouble-Blind MethodInternal medicineHyperlipidemiamedicineAnimalsHumansParticle SizeeducationApolipoprotein e polymorphismTriglycerides0303 health scienceseducation.field_of_studyNutrition and DieteticsPolymorphism GeneticCholesterolPhytosterolCholesterol HDLPhytosterolsCholesterol LDLMiddle Agedmedicine.diseaseLipidsLipoproteins LDLEndocrinologyCholesterolMilkTreatment OutcomechemistryLow-density lipoproteinFood FortifiedFemalelipids (amino acids peptides and proteins)Lipoprotein
researchProduct

Reduced VLDL clearance in ApoeNpc1 mice is associated with increased Pcsk9 and Idol expression and decreased hepatic LDL-receptor levels

2010

Niemann-Pick type C1 (NPC1) promotes the transport of LDL receptor (LDL-R)-derived cholesterol from late endosomes/lysosomes to other cellular compartments. NPC1-deficient cells showed impaired regulation of liver_X receptor (LXR) and sterol regulatory element-binding protein (SREBP) target genes. We observed that Apoe(-/-)Npc1(-/-) mice displayed a marked increase in total plasma cholesterol mainly due to increased VLDL, reflecting decreased clearance. Although nuclear SREBP-2 and Ldlr mRNA levels were increased in Apoe(-/-)Npc1(-/-) liver, LDL-R protein levels were decreased in association with marked induction of proprotein convertase subtilisin/kexin type 9 (Pcsk9) and inducible degrade…

Apolipoprotein EreceptorCholesterol VLDLLDL/metabolismMacrophages Peritoneal/cytologyBiochemistryMiceEndocrinologyhemic and lymphatic diseasesReceptorsOrphan Nuclear Receptors/geneticspolycyclic compoundsnuclear receptorCells CulturedResearch ArticlesLiver X ReceptorsMice KnockoutCulturedSterol Regulatory Element Binding Protein 2/geneticslipoproteinSerine EndopeptidasesIntracellular Signaling Peptides and ProteinsLamin Type AOrphan Nuclear ReceptorsTriglycerides/bloodCholesterolLiverProteins/geneticsKexinlipids (amino acids peptides and proteins)Proprotein ConvertasesProprotein Convertase 9Sterol Regulatory Element Binding Protein 1Niemann-Pick diseaseSterol Regulatory Element Binding Protein 2medicine.medical_specialtyCellsKnockoutUbiquitin-Protein LigasesReceptors LDL/metabolismSerine Endopeptidases/geneticsQD415-436BiologyCholesterol/blooddigestive systemApolipoproteins ELiver/physiologySterol Regulatory Element Binding Protein 1/geneticsNiemann-Pick C1 ProteinInternal medicinemedicineAnimalsPeritoneal/cytologyCholesterol VLDL/metabolismUbiquitin-Protein Ligases/geneticsLiver X receptorTriglyceridesMacrophagesPCSK9Proteinsnutritional and metabolic diseasesVLDL/metabolismLamin Type A/metabolismCell BiologySterol regulatory element-binding proteinEndocrinologyReceptors LDLLDL receptorMacrophages PeritonealSterol regulatory element-binding protein 2atherosclerosisApolipoproteins E/geneticsLipoproteinJournal of Lipid Research
researchProduct

Isolation and characterization of a complement-activating lipid extracted from human atherosclerotic lesions.

1990

The major characteristics of human atherosclerotic lesions are similar to those of a chronic inflammatory reaction, namely fibrosis, mesenchymal cell proliferation, the presence of resident macrophages, and cell necrosis. Atherosclerosis exhibits in addition the feature of lipid (mainly cholesterol) accumulation. The results of the present report demonstrate that a specific cholesterol-containing lipid particle present in human atherosclerotic lesions activates the complement system to completion. Thus, lipid could represent a stimulatory factor for the inflammatory reaction, whose underlying mechanistic basis may be, at least in part, complement activation. The complement-activating lipid …

ArteriosclerosisComplement Pathway AlternativeImmunologyInflammationMuscle Smooth VascularC5-convertasechemistry.chemical_compoundMesenchymal cell proliferationmedicineHumansImmunology and AllergyComplement ActivationImmunoelectrophoresisAortaTriglyceridesCholesterolFatty AcidsComplement System ProteinsArticlesLipidsComplement systemCarotid ArteriesCholesterolchemistryBiochemistryLow-density lipoproteinChromatography GelAlternative complement pathwaylipids (amino acids peptides and proteins)Lipid particlemedicine.symptomJournal of Experimental Medicine
researchProduct

Immunopathogenesis of atherosclerosis: endotoxin accelerates atherosclerosis in rabbits on hypercholesterolemic diet.

2001

Background—On the basis of our concept that atherosclerosis has an immunopathological background, we tested whether activation of the innate immune system influences its progression.Methods and Results—Hypercholesterolemic (0.5% wt/wt diet) rabbits received either repeated intravenous injections of endotoxin (Escherichia colilipopolysaccharide 1.25 to 2.5 μg, once per week) or a self-limiting cutaneousStaphylococcus aureusinfection with or without a quinolone antibiotic. Measured laboratory parameters, including LDL and HDL cholesterols, were similar in the different groups of hypercholesterolemic animals. All endotoxin-treated animals developed transient episodes of fever after endotoxin a…

ArteriosclerosisInnate immunologyHypercholesterolemiaTriglycerides bloodPathogenesisCholesterol Dietarychemistry.chemical_compoundImmunityPhysiology (medical)MedicineAnimalsAortaTriglyceridesInnate immune systemCholesterolbusiness.industryDisease progressionCholesterol HDLCholesterol LDLImmunity InnateCholesterol bloodEndotoxinsDisease Models AnimalCholesterolchemistryImmunologyDisease ProgressionDiet AtherogenicFemaleStaphylococcal Skin InfectionsRabbitsCardiology and Cardiovascular MedicinebusinessCirculation
researchProduct

Pharmacological blockade of the fatty acid amide hydrolase (FAAH) alters neural proliferation, apoptosis and gliosis in the rat hippocampus, hypothal…

2015

Endocannabinoids participate in the control of neurogenesis, neural cell death and gliosis. The pharmacological effect of the fatty acid amide hydrolase (FAAH) inhibitor URB597, which limits the endocannabinoid degradation, was investigated in the present study. Cell proliferation (phospho-H3(+) or BrdU(+) cells) of the main adult neurogenic zones as well as apoptosis (cleaved caspase-3(+)), astroglia (GFAP(+)), and microglia (Iba1(+) cells) were analyzed in the hippocampus, hypothalamus and striatum of rats intraperitoneally treated with URB597 (0.3 mg/kg/day) at one dose/4-days resting or 5 doses (1 dose/day). Repeated URB597 treatment increased the plasma levels of the N-acylethanolamine…

AstrocitosNeurobiologia del desenvolupamentAmidohidrolasasCannabinoid receptorCarbamatos:Chemicals and Drugs::Amino Acids Peptides and Proteins::Proteins::Intracellular Signaling Peptides and Proteins::Apoptosis Regulatory Proteins::Caspases [Medical Subject Headings]:Phenomena and Processes::Cell Physiological Phenomena::Cell Physiological Processes::Cell Differentiation::Neurogenesis [Medical Subject Headings]medicine.medical_treatment:Chemicals and Drugs::Carbohydrates::Monosaccharides::Hexoses::Glucose [Medical Subject Headings]Apoptosis:Phenomena and Processes::Physiological Phenomena::Body Constitution::Body Weights and Measures::Body Size::Body Weight [Medical Subject Headings]chemistry.chemical_compound:Chemicals and Drugs::Amino Acids Peptides and Proteins::Proteins::Membrane Proteins::Receptors Cell Surface::Receptors G-Protein-Coupled::Receptors Cannabinoid::Receptor Cannabinoid CB1 [Medical Subject Headings]0302 clinical medicine:Chemicals and Drugs::Organic Chemicals::Carboxylic Acids::Acids Acyclic::Carbamates [Medical Subject Headings]Fatty acid amide hydrolaseReceptor cannabinoide CB1:Organisms::Eukaryota::Animals [Medical Subject Headings]FAAHGliosishealth care economics and organizations:Chemicals and Drugs::Nucleic Acids Nucleotides and Nucleosides::Nucleosides::Deoxyribonucleosides::Deoxyuridine::Bromodeoxyuridine [Medical Subject Headings]:Chemicals and Drugs::Lipids::Glycerides::Triglycerides [Medical Subject Headings]Original Research0303 health sciencesNeurogenesisBenzamidas:Chemicals and Drugs::Polycyclic Compounds::Steroids::Cholestanes::Cholestenes::Cholesterol [Medical Subject Headings]Endocannabinoid systemEtanolaminas3. Good healthEndocannabinoides:Chemicals and Drugs::Lipids::Fatty Acids::Fatty Acids Unsaturated::Fatty Acids Monounsaturated::Oleic Acids [Medical Subject Headings]CannabinoidesMicroglíalipids (amino acids peptides and proteins)medicine.symptomColesterol:Chemicals and Drugs::Organic Chemicals::Hydrocarbons::Terpenes::Cannabinoids [Medical Subject Headings]:Chemicals and Drugs::Lipids::Fatty Acids::Palmitic Acids [Medical Subject Headings]psychological phenomena and processesProliferación celularmedicine.medical_specialtyCerebroNeurogenesiseducationBiologyBromodesoxiuridina:Anatomy::Nervous System::Neuroglia::Microglia [Medical Subject Headings]Triglicéridoslcsh:RC321-571Ácidos oléicosRatas03 medical and health sciencesCellular and Molecular NeuroscienceInternal medicineHipocampomedicineCaspasa 3:Anatomy::Nervous System::Central Nervous System::Brain::Limbic System::Hippocampus [Medical Subject Headings]:Phenomena and Processes::Cell Physiological Phenomena::Cell Physiological Processes::Cell Growth Processes::Cell Proliferation [Medical Subject Headings]lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry030304 developmental biologyPalmitoylethanolamide:Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Molecular Mechanisms of Pharmacological Action::Neurotransmitter Agents::Endocannabinoids [Medical Subject Headings]:Chemicals and Drugs::Enzymes and Coenzymes::Enzymes::Hydrolases::Amidohydrolases [Medical Subject Headings]Cannabinoids:Anatomy::Cells::Neuroglia::Astrocytes [Medical Subject Headings]Peso corporalEnergy metabolism:Anatomy::Nervous System::Central Nervous System::Brain [Medical Subject Headings]:Anatomy::Nervous System::Central Nervous System::Brain::Limbic System::Hypothalamus [Medical Subject Headings]URB597:Phenomena and Processes::Cell Physiological Phenomena::Cell Physiological Processes::Cell Death [Medical Subject Headings]:Diseases::Pathological Conditions Signs and Symptoms::Pathologic Processes::Gliosis [Medical Subject Headings]:Chemicals and Drugs::Organic Chemicals::Amines::Amino Alcohols::Ethanolamines [Medical Subject Headings]Muerte celular:Phenomena and Processes::Cell Physiological Phenomena::Cell Physiological Processes::Cell Death::Apoptosis [Medical Subject Headings]:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Rodentia::Muridae::Murinae::Rats [Medical Subject Headings]EndocrinologyURB597chemistryGliosisnervous systemGlucosaCannabinoidEnergy Metabolism:Chemicals and Drugs::Organic Chemicals::Amides::Benzamides [Medical Subject Headings]HipotálamoÁcidos palmíticos030217 neurology & neurosurgeryNeuroscienceFrontiers in Cellular Neuroscience
researchProduct

Biotechnology of Rhodococcus for the production of valuable compounds

2020

Abstract Bacteria belonging to Rhodococcus genus represent ideal candidates for microbial biotechnology applications because of their metabolic versatility, ability to degrade a wide range of organic compounds, and resistance to various stress conditions, such as metal toxicity, desiccation, and high concentration of organic solvents. Rhodococcus spp. strains have also peculiar biosynthetic activities that contribute to their strong persistence in harsh and contaminated environments and provide them a competitive advantage over other microorganisms. This review is focused on the metabolic features of Rhodococcus genus and their potential use in biotechnology strategies for the production o…

BioconversionSiderophoreBioflocculantsBioconversionMicroorganismBiosynthesiIndustrial WasteSiderophoresBiosynthesisApplied Microbiology and BiotechnologyRhodococcus Antimicrobials Bioflocculants Biosynthesis Bioconversion Biosurfactants Carotenoids Lipids Metal-based nanostructures SiderophoresBioproductsRhodococcusTriglyceridesCarotenoidHigh concentrationbiologyAntimicrobialsChemistrybusiness.industryMetal-based nanostructureBiosurfactantBioflocculantGeneral MedicineMini-ReviewLipidbiology.organism_classificationCarotenoidsLipidsRefuse DisposalBiotechnologyBiosurfactantsbacteriaAntimicrobialbusinessRhodococcusMetal-based nanostructuresBacteriaRhodococcuBiotechnologyWaste disposalApplied Microbiology and Biotechnology
researchProduct