Search results for " Oleic Acid"

showing 6 items of 6 documents

Changes in membrane lipid composition in ethanol- and acid-adapted Oenococcus oeni cells: characterization of the cfa gene by heterologous complement…

2008

International audience; Cyclopropane fatty acid (CFA) synthesis was investigated in Oenococcus oeni. The data obtained demonstrated that acid-grown cells or cells harvested in the stationary growth phase showed changes in fatty acid composition similar to those of ethanol-grown cells. An increase of the CFA content and a decrease of the oleic acid content were observed. The biosynthesis of CFAs from unsaturated fatty acid phospholipids is catalysed by CFA synthases. Quantitative real-time-PCR experiments were performed on the cfa gene of O. oeni, which encodes a putative CFA synthase. The level of cfa transcripts increased when cells were harvested in stationary phase and when cells were gr…

CyclopropanesMESH: Hydrogen-Ion ConcentrationTranscription GeneticMESH: Gram-Positive Coccimedicine.disease_causechemistry.chemical_compoundMESH: CyclopropanesCloning MolecularMESH: Bacterial ProteinsOenococcus oeni0303 health sciencesMESH: Gene Expression Regulation BacterialMESH: Genetic Complementation TestbiologyStrain (chemistry)MESH: Escherichia coliFatty AcidsHydrogen-Ion ConcentrationMESH: Fatty AcidsGram-Positive CocciComplementationRNA BacterialBiochemistryMESH: RNA BacterialMESH: EthanolMESH: Sequence AlignmentMicrobiologycomplex mixturesMembrane Lipids03 medical and health sciencesBacterial ProteinsMESH: MethyltransferasesEscherichia colimedicineMESH: Cloning Molecular[SDV.BBM]Life Sciences [q-bio]/Biochemistry Molecular BiologyCyclopropane fatty acidEthanol metabolismEscherichia coliUnsaturated fatty acid030304 developmental biologyEthanol030306 microbiologyMESH: Transcription GeneticGenetic Complementation TestMESH: Oleic AcidGene Expression Regulation BacterialMethyltransferasesbiology.organism_classificationOleic acidchemistryMESH: Membrane LipidsSequence AlignmentOleic Acid
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Mboat7 down-regulation by hyper-insulinemia induces fat accumulation in hepatocytes.

2020

Background: Naturally occurring variation in Membrane-bound O-acyltransferase domain-containing 7 (MBOAT7), encoding for an enzyme involved in phosphatidylinositol acyl-chain remodelling, has been associated with fatty liver and hepatic disorders. Here, we examined the relationship between hepatic Mboat7 down-regulation and fat accumulation. Methods: Hepatic MBOAT7 expression was surveyed in 119 obese individuals and in experimental models. MBOAT7 was acutely silenced by antisense oligonucleotides in C57Bl/6 mice, and by CRISPR/Cas9 in HepG2 hepatocytes. Findings: In obese individuals, hepatic MBOAT7 mRNA decreased from normal liver to steatohepatitis, independently of diabetes, inflammatio…

Research paperTGFβ Transforming Growth Factor BetaIntracellular SpaceCRISPR Clustered Regularly Interspaced Short Palindromic RepeatshHEPS Human HepatocytesMice0302 clinical medicineLPIAT1DAG Diacylglyceroli.p. Intraperitonealmedia_commonFatty AcidsGeneral Medicine3. Good health030220 oncology & carcinogenesisHOMA-IR homeostasis Model Assessment of Insulin ResistanceMPO morpholinolcsh:Medicine (General)medicine.medical_specialtyPE Phosphatidyl-EthanolamineNashGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciencesTNFα tumor Necrosis Factor AlphaLDL Low Density LipoproteinsHyperinsulinismNAFLDSD Standard Dietmedia_common.cataloged_instanceHumansCPT1 Carnitine Palmitoyltransferase IPhosphatidylinositolGene SilencingEuropean unionVLDL Very Low Density Lipoproteinlcsh:RhHSC Human Hepatic Stellate Cellsmedicine.diseaseLipid MetabolismOA Oleic AcidCI Confidence IntervalMboat7 Membrane bound O-acyltransferase domain containing 7MCD methionine choline deficient diet030104 developmental biologyEndocrinologychemistryCDP Cytidine-DiphosphateFOXO1 Forkhead Box protein O1NAFLD nonalcoholic fatty liver diseaseSteatohepatitisBMI Body Mass IndexCL CardiolipinAcyltransferases0301 basic medicineAlcoholic liver diseaseCXCL10 C-X-C Motif Chemokine 10lcsh:Medicinechemistry.chemical_compoundNon-alcoholic Fatty Liver DiseaseIFG Impaired Fasting GlucoseAPOB Apolipoprotein BNonalcoholic fatty liver diseasePIP Phosphatidyl-Inositol-PhosphateSteatohepatitisqRT-PCR quantitative Real Time Polymerase Chain ReactionMice Knockoutlcsh:R5-920ORO Oil Red O StainingPI PhosphatidylinositolFatty liverTM6SF2 Transmembrane 6 Superfamily Member 2PhospholipidTAG TriglyceridesNASH Nonalcoholic SteatohepatitisLipogenesisLPA Lyso-Phosphatidic AcidPhosphatidylinositolSignal TransductionPS Phosphatidyl-SerinePA Palmitic AcidALD alcoholic liver diseasePC Phosphatidylcholinei.v. IntravenousFATP1 Fatty Acid Transport Protein 1Models BiologicalInternal medicinemedicineAnimalsNonalcoholic fatty liver diseasePPARα Peroxisome Proliferator-Activated Receptor alphaObesityG3P Glyceraldehyde-3-PhosphateSREBP1c Sterol Regulatory Element-Binding Protein 1HDL High Density Lipoproteinsbusiness.industryPI3K Phosphatidylinositol 3 KinaseMembrane ProteinsNHEJ Non-Homologues End JoiningPNPLA3 Patatin-like Phospholipase Domain-containing-3MTTP Microsomal Triglyceride Transfer ProteinLPIAT1 Lysophosphatidylinositol Acyltransferase 1TMC4 Transmembrane Channel-Like 4Disease Models AnimalGene Expression RegulationHepatocytesFOXA2 Forkhead Box A2mTOR mammalian target of RapamycinSteatosisInsulin ResistancebusinessPG Phosphatidyl-GlycerolFABP1 Fatty Acid-Binding Protein 1 FAS Fatty Acid SynthaseT2DM Type 2 Diabetes MellitusEBioMedicine
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SCD5-induced oleic acid production reduces melanoma malignancy by intracellular retention of SPARC and cathepsin B

2014

A proper balance between saturated and unsaturated fatty acids (FAs) is required for maintaining cell homeostasis. The increased demand of FAs to assemble the plasma membranes of continuously dividing cancer cells might unbalance this ratio and critically affect tumour outgrowth. We unveiled the role of the stearoyl-CoA desaturase SCD5 in converting saturated FAs into mono-unsaturated FAs during melanoma progression. SCD5 is down-regulated in advanced melanoma and its restored expression significantly reduced melanoma malignancy, both in vitro and in vivo, through a mechanism governing the secretion of extracellular matrix proteins, such as secreted protein acidic and rich in cysteine (SPAR…

cathepsin B2734Intracellular SpaceDown-RegulationCell LineMelanocyteCell Line TumormelanomaHumansintracellular acidityOsteonectinNeoplasticTumorMedicine (all)Fatty AcidsSPARCHydrogen-Ion ConcentrationGene Expression Regulation NeoplasticSCD5Gene Expression Regulationoleic acidDisease ProgressionMelanocytesFatty AcidStearoyl-CoA Desaturasecathepsin B; intracellular acidity; melanoma; oleic acid; SCD5; SPARC; Cathepsin B; Cell Line Tumor; Disease Progression; Down-Regulation; Fatty Acids; Humans; Hydrogen-Ion Concentration; Intracellular Space; Melanocytes; Melanoma; Oleic Acid; Osteonectin; Stearoyl-CoA Desaturase; Gene Expression Regulation Neoplastic; 2734; Medicine (all)Human
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Effects of Genotype and Climate on Productive Performance of High Oleic Carthamus tinctorius L. under Rainfed Conditions in a Semi-Arid Environment o…

2023

Safflower (Carthamus tinctorius L.) is a promising oilseed crop for cultivation in central Southern Italy due to its high tolerance to drought and salinity stress and appreciable seed and oil yields. The genetic diversity of cultivars and climate factors can affect fatty acid composition and yield traits. This study aimed to assess the effects of genotype and climate conditions on the productive performance of eight high oleic safflower genotypes under rainfed conditions in Sicily (Italy). These genotypes were compared to the Montola 2000 cultivar, which was used as a reference. Tests were carried out during the growing seasons of 2014–2015 and 2015–2016. The experimental design…

crop residuesEcologygenotypefatty acidPlant Sciencehigh oleic acid safflowerenvironmentEcology Evolution Behavior and Systematicshigh oleic acid safflower; genotype; environment; fatty acids; crop residuesSettore AGR/02 - Agronomia E Coltivazioni ErbaceePlants
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Composition influence on pulmonary delivery of rifampicin liposomes.

2012

The effects of lipid concentration and composition on the physicochemical properties, aerosol performance and in vitro toxicity activity of several rifampicin-loaded liposomes were investigated. To this purpose, six liposome formulations containing different amounts of soy phosphatidylcholine and hydrogenated soy phosphatidylcholine, with and without cholesterol and oleic acid, were prepared and fully characterized. Uni- or oligo-lamellar, small (~100 nm), negatively charged (~60 mV) vesicles were obtained. Lipid composition affected aerosol delivery features of liposomal rifampicin; in particular, the highest phospholipid concentration led to a better packing of the vesic…

liposomesaerosolPhospholipidpulmonary deliveryPharmaceutical Sciencelcsh:RS1-441liposomes; rifampicin; cholesterol; oleic acid; rheology; pulmonary delivery; aerosol; cell viability; cellular uptakerifampicinArticlelcsh:Pharmacy and materia medicachemistry.chemical_compoundPhosphatidylcholineMedicinecell viabilityLiposomeChromatographyCholesterolbusiness.industryVesiclecholesterolcellular uptakeIn vitroOleic acidchemistryBiochemistryoleic acidToxicitylipids (amino acids peptides and proteins)rheologybusinessPharmaceutics
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Hyaluronan Graft Copolymers Bearing Fatty-Acid Residues as Self-Assembling Nanoparticles for Olanzapine Delivery

2019

In order to evaluate the potential of a technology platform based on hyaluronan copolymers grafted with propargylated ferulate fluorophores (HA-FA-Pg) in the development of drug delivery systems, the propargyl groups of HA-FA-Pg derivatives were employed with oleic acid (OA) or stearic acid (SA) residues across a biocompatible hexa(ethylene glycol) (HEG) spacer. The designed materials (i.e., HA-FA-HEG-OA or HA-FA-HEG-SA) showed clear-cut aggregation features in an aqueous environment, as confirmed by dynamic light scattering (DLS) and transmission electron microscopy (TEM), generating nanoaggregate systems. In fact, HA-FA-HEG-OA and HA-FA-HEG-SA derivatives showed the property to create sel…

olanzapinePharmaceutical Science02 engineering and technologyself-assembling nanocarrier010402 general chemistry01 natural sciencesArticlechemistry.chemical_compounddrug delivery systemsDynamic light scatteringhyaluronic acidCopolymerSide chainSolubilityDrug delivery systems; Ferulic acid; Hyaluronic acid; Olanzapine; Oleic acid; Self-assembling nanocarriers; Stearic acidSelf-assembling nanocarriersstearic acid021001 nanoscience & nanotechnology0104 chemical sciencesOleic acidchemistryChemical engineeringoleic acidDrug deliveryStearic acid0210 nano-technologyEthylene glycolferulic acid
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