0000000000789352

AUTHOR

Pascal Degrace

showing 35 related works from this author

Liver carbohydrate and lipid metabolism of insulin-deficient mice is altered by trans-10, cis-12 conjugated linoleic acid.

2009

Feeding mice the trans-10, cis-12 (t10c12) conjugated linoleic acid (CLA) isomer is associated with lipodystrophy, insulin resistance, hyperinsulinemia, and liver steatosis. It has been hypothesized that CLA-induced liver steatosis is the result of increased hepatic lipogenesis stimulated by high insulin levels. We studied the effects of a 12-d t10c12CLA treatment (1 g/100 g diet) on liver carbohydrate and lipid metabolism in control and streptozotocin (STZ)-injected mice. STZ mice were characterized by insulin deficiency, hypertriglyceridemia, and depletion of liver triglyceride and glycogen. Remarkably, feeding t10c12CLA to diabetic mice (STZ-CLA) normalized these variables. Reconstitutio…

Malemedicine.medical_specialtyendocrine system diseasesmedicine.medical_treatmentMedicine (miscellaneous)BiologyDiabetes Mellitus Experimentalchemistry.chemical_compoundMiceInsulin resistanceInternal medicinemedicineAnimalsLinoleic Acids ConjugatedNutrition and DieteticsGlycogenGlucokinaseInsulinFatty livernutritional and metabolic diseasesLipid metabolismmedicine.diseaseLipid MetabolismMice Inbred C57BLEndocrinologychemistryGene Expression RegulationLiverGlycogenesisLipogenesisBody CompositionCarbohydrate Metabolismlipids (amino acids peptides and proteins)The Journal of nutrition
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Hypolipidaemic effects of fenofibrate and fasting in the herbivorous grass carp (Ctenopharyngodon idella) fed a high-fat diet

2008

We investigated whether the hypolipidaemic effect of fenofibrate and fasting observed in most omnivorous mammals may also apply to herbivorous fish. Grass carp (Ctenopharyngodon idella) fed a high-fat (8 %) diet exhibited a marked increase in blood lipids and body fat after 6 weeks. They were then treated with fenofibrate (100 mg/kg body weight) in the same high-fat diet for 2 weeks, followed by fasting for 1 week. Plasma lipid concentration, body fat amount, fatty acid composition, plasma thiobarbituric acid-reactive substances and some parameters related to hepatic fatty acid oxidation were measured, and liver samples were stained for histological examination. Fenofibrate treatment decrea…

medicine.medical_specialtyCarpsmedicine.drug_classMedicine (miscellaneous)Blood lipidsHyperlipidemiasFibrateBiologyThiobarbituric Acid Reactive SubstancesLipid peroxidationFish Diseaseschemistry.chemical_compoundFenofibrateInternal medicinemedicineAnimalsBeta oxidationHypolipidemic AgentsNutrition and DieteticsFenofibrateCholesterolFatty AcidsLipid metabolismFastingLipid Metabolismbiology.organism_classificationCombined Modality TherapyDietary FatsGrass carpEndocrinologyLiverchemistryAnimal Nutritional Physiological Phenomenalipids (amino acids peptides and proteins)Lipid PeroxidationOxidation-Reductionmedicine.drugBritish Journal of Nutrition
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Activation of adipose tissue cannabinoid receptors 1 (CB1R) alters antilipolytic action of insulin and increases lipolysis in mice

2014

medicine.medical_specialtyCannabinoid receptorEndocrinologyChemistryInternal medicineInsulinmedicine.medical_treatmentmedicineLipolysisAdipose tissueCardiology and Cardiovascular MedicineAtherosclerosis
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Acute activation of cannabinoid receptors by anandamide reduces gastrointestinal motility and improves postprandial glycemia in mice.

2015

International audience; The endocannabinoid system (ECS) is associated with an alteration of glucose homeostasis dependent on cannabinoid receptor-1 (CB1R) activation. However, very little information is available concerning the consequences of ECS activation on intestinal glucose absorption. Mice were injected intraperitoneally with anandamide, an endocannabinoid binding both CB1R and CB2R. We measured plasma glucose and xylose appearance after oral loading, gastrointestinal motility, and glucose transepithelial transport using the everted sac method. Anandamide improved hyperglycemia after oral glucose charge whereas glucose clearance and insulin sensitivity were impaired, pointing out so…

Blood GlucoseMaleIndolesCannabinoid receptorMESH : Piperidines[ SDV.AEN ] Life Sciences [q-bio]/Food and NutritionEndocrinology Diabetes and Metabolismmedicine.medical_treatmentMESH: EndocannabinoidsMESH : PyrazolesMESH : Receptors CannabinoidMicechemistry.chemical_compoundPiperidinesMESH : IndolesMESH: Receptors CannabinoidMESH: Reverse Transcriptase Polymerase Chain ReactionMESH : Arachidonic AcidsGlucose homeostasisMESH: Gastrointestinal TransitMESH: AnimalsReceptors CannabinoidMESH: IndolesReverse Transcriptase Polymerase Chain ReactionMESH : RatsMESH : Reverse Transcriptase Polymerase Chain ReactionAnandamidePostprandial PeriodEndocannabinoid systemMESH : Gastrointestinal MotilityPostprandialMESH: PiperidinesMESH: Postprandial PeriodMESH: Gastrointestinal MotilityRimonabantMESH : EndocannabinoidsMESH : Gastrointestinal Transitmedicine.medical_specialtyMESH: RatsPolyunsaturated AlkamidesMESH : MaleArachidonic AcidsMESH : Mice Inbred C57BLMESH : Rats WistarMESH: Mice Inbred C57BLInternal medicineMESH : MiceInternal MedicinemedicineAnimalsMESH: Arachidonic AcidsMESH : Polyunsaturated AlkamidesRats WistarGastrointestinal TransitMESH: MiceGastric emptyingMESH: Polyunsaturated AlkamidesGlucose transporterMESH: Rats WistarMESH : Blood GlucoseMESH: MaleRatsMice Inbred C57BL[SDV.AEN] Life Sciences [q-bio]/Food and NutritionEndocrinologychemistryHyperglycemiaMESH : HyperglycemiaMESH: Blood GlucosePyrazolesMESH : AnimalsCannabinoidMESH : Postprandial PeriodGastrointestinal MotilityMESH: Hyperglycemia[SDV.AEN]Life Sciences [q-bio]/Food and NutritionMESH: PyrazolesEndocannabinoids
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Upregulation of liver VLDL receptor and FAT/CD36 expressions in LDLR-/- apoB100/100 mice fed trans-10,cis-12 conjugated linoleic acid

2006

International audience; This study explores the mechanisms responsible for the fatty liver setup in mice fed trans-10,cis-12 conjugated linoleic acid (t10c12 CLA), hypothesizing that an induction of low density lipoprotein receptor (LDLR) expression is associated with lipid accumulation. To this end, the effects of t10c12 CLA treatment on lipid parameters, serum lipoproteins, and expression of liver lipid receptors were measured in LDLR(-/-) apoB(100/100) mice as a model of human familial hypercholesterolemia itself depleted of LDLR. Mice were fed t10c12 CLA over 2 or 4 weeks. We first observed that the treatment induced liver steatosis, even in the absence of LDLR. Mice treated for 2 weeks…

CD36 AntigensMaleVery low-density lipoproteinTRANSLOCASECD36RECEPTEUR SCAVENGER[SDV]Life Sciences [q-bio]FATTY ACID TRANSLOCASE030204 cardiovascular system & hematologyBiochemistryMice0302 clinical medicineEndocrinologyLinoleic Acids ConjugatedMice Knockout0303 health sciencesLipoprotein lipaselipoprotéinebiologyacide grasrécepteur d'hormoneChemistryFatty liverFatty Acidsfood and beveragesHEPATIC LIPASELipidsLOW DENSITY LIPOPROTEIN RECEPTOR3. Good healthUp-RegulationLiverSCAVENGER RECEPTOR CLASS B TYPE ILIVER STEATOSIS;LOW DENSITY LIPOPROTEIN RECEPTOR;TRIGLYCERIDE;LIPOATROPHY;LIPOPROTEIN;FATTY ACID TRANSLOCASE;VERY LOW DENSITY LIPOPROTEIN RECEPTOR;HEPATIC LIPASE;LIPOPROTEIN LIPASE;LOW DENSITY LIPOPROTEIN RECEPTOR-RELATED PROTEIN;SCAVENGER RECEPTOR CLASS B TYPE I;LIPOATROPHIE;TRANSLOCASE;LIPASE HEPATIQUE;RECEPTEUR SCAVENGERApolipoprotein B-100lipoprotéine lipaseTRIGLYCERIDElipids (amino acids peptides and proteins)Oxidation-Reductionmedicine.medical_specialtyLIPASE HEPATIQUELipolysisVLDL receptorMice Transgenicacide linoléique conjugué03 medical and health sciencesstéatose hépatiqueInternal medicineLIVER STEATOSISmedicineLIPOPROTEIN LIPASEAnimalsRNA Messengerlipoprotéine de faible densite030304 developmental biologyLOW DENSITY LIPOPROTEIN RECEPTOR-RELATED PROTEINnutritional and metabolic diseasesCell Biologymedicine.diseaseLipid MetabolismLIPOATROPHYDietary FatsEndocrinologyLIPOPROTEINReceptors LDLVERY LOW DENSITY LIPOPROTEIN RECEPTORLIPOATROPHIELDL receptorbiology.proteinacide gras transHepatic lipaseLipoprotein
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Mitochondrial Fatty Acid β-Oxidation Inhibition Promotes Glucose Utilization and Protein Deposition through Energy Homeostasis Remodeling in Fish.

2020

BACKGROUND: Fish cannot use carbohydrate efficiently and instead utilize protein for energy supply, thus limiting dietary protein storage. Protein deposition is dependent on protein turnover balance, which correlates tightly with cellular energy homeostasis. Mitochondrial fatty acid β-oxidation (FAO) plays a crucial role in energy metabolism. However, the effect of remodeled energy homeostasis caused by inhibited mitochondrial FAO on protein deposition in fish has not been intensively studied. OBJECTIVES: This study aimed to identify the regulatory role of mitochondrial FAO in energy homeostasis maintenance and protein deposition by studying lipid, glucose, and protein metabolism in fish. M…

0301 basic medicineMaleProtein metabolismMedicine (miscellaneous)MitochondrionEnergy homeostasis03 medical and health scienceschemistry.chemical_compoundNile tilapia0302 clinical medicineAdjuvants ImmunologicmedicineAnimalsHomeostasisInsulinCarnitineProtein kinase ACells CulturedZebrafishNutrition and DieteticsbiologyCarnitine O-PalmitoyltransferaseChemistryFatty AcidsProtein turnoverProteinsMetabolismCichlidsDNACytochromes bbiology.organism_classificationMitochondria030104 developmental biologyGlucoseBiochemistryMutationHepatocytesNutrient Physiology Metabolism and Nutrient-Nutrient InteractionsEnergy MetabolismOxidation-Reduction030217 neurology & neurosurgerymedicine.drugMethylhydrazinesThe Journal of nutrition
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Biochemical hepatic alterations and body lipid composition in the herbivorous grass carp (Ctenopharyngodon idella) fed high-fat diets.

2006

High-fat diets may have favourable effects on growth of some carnivorous fish because of the protein-sparing effect of lipids, but high-fat diets also exert some negative impacts on flesh quality. The goal of the study was therefore to determine the effects of fat-enriched diets in juvenile grass carp (Ctenopharyngodon idella) as a typical herbivorous fish on growth and possible lipid metabolism alterations. Three isonitrogenous diets containing 2, 6 or 10% of a mixture of lard, maize oil and fish oil (1:1:1, by weight) were applied to fish for 8 weeks in a recirculation system. Data show that feeding diets with increasing lipid levels resulted in lowered feed intake, decreased growth and f…

CarpsDietary lipidFisheriesMedicine (miscellaneous)BiologyFeed conversion ratioLipid peroxidationchemistry.chemical_compoundAnimalsFood scienceBeta oxidationTriglycerideschemistry.chemical_classificationNutrition and DieteticsFatty AcidsLipid metabolismbiology.organism_classificationFish oilDietary FatsLipidsGrass carpDietCholesterolBiochemistrychemistryLiverBody CompositionAnimal Nutritional Physiological PhenomenaLipid PeroxidationPolyunsaturated fatty acidThe British journal of nutrition
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Shifted cooperation of desaturation and oxidation of palmitic acid in rat liver

2001

Palmitic acidchemistry.chemical_compoundchemistryBiochemistryRat liverBiochemistryBiochemical Society Transactions
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CA-170: L'administration précoce d'acide linolenique réduit le tonus endocannabinoïde hépatique et améliore le contrôle glycémique de la souris soumi…

2016

Introduction L'obesite s'accompagne d'une hyperactivation du systeme endocannabinoide (SEC) et en particulier d'une augmentation de la concentration des deux principaux endocannabinoides (ECs), le N-arachidonoyl-ethanolamine (AEA) et le 2-arachidonoyl-glycerol (2-AG), dans certains tissus dont le foie. L'AEA et le 2-AG ayant comme precurseur commun l'acide arachidonique (C20 : 4 n-6), des etudes recentes ont indique que la production de ces ECs pouvait etre influencee par la composition en acides gras (AG) du regime. Dans ce travail, nous avons cherche a savoir si la modification du rapport AGn-6/n-3 d'un regime normolipidique administre a des souris au cours de la periode post-natale pouva…

EndocrinologyEndocrinology Diabetes and MetabolismInternal MedicineGeneral MedicineDiabetes & Metabolism
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Functional differences between l- and d-carnitine in metabolic regulation evaluated using a low-carnitine Nile tilapia model.

2019

Abstractl-Carnitine is essential for mitochondrialβ-oxidation and has been used as a lipid-lowering feed additive in humans and farmed animals.d-Carnitine is an optical isomer ofl-carnitine anddl-carnitine has been widely used in animal feeds. However, the functional differences betweenl- andd-carnitine are difficult to study because of the endogenousl-carnitine background. In the present study, we developed a low-carnitine Nile tilapia model by treating fish with a carnitine synthesis inhibitor, and used this model to investigate the functional differences betweenl- andd-carnitine in nutrient metabolism in fish.l- ord-carnitine (0·4 g/kg diet) was fed to the low-carnitine tilapia for 6 wee…

0301 basic medicinefood.ingredientProtein metabolismMedicine (miscellaneous)Apoptosis03 medical and health scienceschemistry.chemical_compoundNile tilapiaCarnitine palmitoyltransferase 1foodCarnitinemedicineAnimalsMetabolomicsCarnitineRNA MessengerNutrition and DieteticsbiologyProteinsTilapiaStereoisomerism04 agricultural and veterinary sciencesbiology.organism_classificationAnimal FeedCitric acid cycleMetabolic pathwayOxidative Stress030104 developmental biologyGlucosechemistryLipotoxicityBiochemistryLiverModels Animal040102 fisheries0401 agriculture forestry and fisheriesOxidation-Reductionmedicine.drugTilapiaThe British journal of nutrition
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Système endocannabinoïde : effets sur le métabolisme glucidique, mais aussi lipidique

2016

Resume Le systeme endocannabinoide (SEC) est compose de recepteurs couples aux proteines G : Cannabinoid type 1-receptor (CB 1 -R) et Cannabinoid type 2-receptor (CB 2 -R), de leurs ligands endogenes (anandamide [AEA], et 2-acylglycerol [2-AG]), et des enzymes responsables de leur synthese et de leur degradation. Bien que les recepteurs CB 1 -R et CB 2 -R furent initialement decrits au niveau du systeme nerveux central, ils sont presents dans de nombreux tissus peripheriques, ou ils sont impliques dans le metabolisme, la croissance, et l’inflammation. Apres le retrait commercial du rimonabant, pour des effets secondaires psychiatriques, un agoniste inverse du recepteur CB 1 (CB 1 -R), desti…

0301 basic medicine03 medical and health scienceschemistry.chemical_compound030104 developmental biologyNutrition and DieteticsChemistryEndocrinology Diabetes and MetabolismInternal MedicineInsulino resistanceAnandamideCardiology and Cardiovascular MedicineMolecular biologyMédecine des Maladies Métaboliques
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Association of liver steatosis with lipid oversecretion and hypotriglyceridaemia in C57BL/6j mice fed trans-10, cis-12-linoleic acid

2003

AbstractConjugated linoleic acids (CLA) have recently been recognized to reduce body fat and plasma lipids in some animals. This study demonstrated that the steatosis accompanying the fat loss induced by trans-10,cis-12-C18:2 (CLA2) and not cis-9,trans-11-C18:2 (CLA1) isomer in C57BL/6j mice was not due to an alteration of the liver lipoprotein production that was even increased. The 3-fold decrease in plasma triacylglycerol contents and the induction of mRNA expression of low-density lipoprotein receptors concomitantly observed in CLA2-fed mice suggested an increase in the lipoprotein clearance at the level of the liver itself. CLA1 feeding produced similar but attenuated effects on trigly…

030309 nutrition & dieteticsConjugated linoleic acidLiver steatosisLipoproteins VLDLBiochemistrychemistry.chemical_compoundMiceStructural BiologyLipoproteinReceptorComputingMilieux_MISCELLANEOUSchemistry.chemical_classification0303 health sciencesFatty AcidsLiverlipids (amino acids peptides and proteins)Conjugated linoleic acidmedicine.medical_specialtyLinoleic acidBiophysics[SDV.BC]Life Sciences [q-bio]/Cellular BiologyTriacylglycerolLinoleic Acid03 medical and health sciencesInternal medicineGeneticsmedicineAnimalsLow-density lipoprotein receptorRNA MessengerMolecular BiologyTriglycerides030304 developmental biologyDNA PrimersBase SequenceEsterificationMyocardiumBody WeightRNAFatty acidCell BiologyFatty acidmedicine.diseaseFatty LiverMice Inbred C57BLEndocrinologychemistryLDL receptorSteatosisLipoprotein
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Simultaneous Inhibition of Peripheral CB1R and iNOS Mitigates Obesity-Related Dyslipidemia Through Distinct Mechanisms.

2020

Diabetic dyslipidemia, characterized by increased plasma triglycerides and decreased HDL cholesterol levels, is a major factor contributing to nonalcoholic steatohepatitis and cardiovascular risk in type 2 diabetes. Activation of the cannabinoid-1 receptor (CB1R) and activation of inducible nitric oxide synthase (iNOS) are associated with nonalcoholic steatohepatitis progression. Here, we tested whether dual-targeting inhibition of hepatic CB1R and iNOS improves diabetic dyslipidemia in mice with diet-induced obesity (DIO mice). DIO mice were treated for 14 days with (S)-MRI-1867, a peripherally restricted hybrid inhibitor of CB1R and iNOS. (R)-MRI-1867, the CB1R-inactive stereoisomer that …

0301 basic medicineMaleVery low-density lipoproteinEndocrinology Diabetes and MetabolismNitric Oxide Synthase Type II[SDV.BC.IC] Life Sciences [q-bio]/Cellular Biology/Cell Behavior [q-bio.CB][SDV.BBM.BM] Life Sciences [q-bio]/Biochemistry Molecular Biology/Molecular biologyMice0302 clinical medicineReceptor Cannabinoid CB1[SDV.BC.IC]Life Sciences [q-bio]/Cellular Biology/Cell Behavior [q-bio.CB]Receptor[SDV.BBM.BC] Life Sciences [q-bio]/Biochemistry Molecular Biology/Biochemistry [q-bio.BM]Cells Cultured[SDV.MHEP.EM] Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolismbiology[SDV.MHEP.EM]Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolism[SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry Molecular Biology/Biomolecules [q-bio.BM]Nitric oxide synthaseLiver[SDV.SP.PHARMA] Life Sciences [q-bio]/Pharmaceutical sciences/PharmacologyKexinlipids (amino acids peptides and proteins)medicine.medical_specialty[SDV.OT]Life Sciences [q-bio]/Other [q-bio.OT]LipoproteinsImmunoblotting030209 endocrinology & metabolismReal-Time Polymerase Chain Reaction03 medical and health sciencesInternal medicineCommentariesInternal MedicinemedicineAnimalsObesity[SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry Molecular Biology/Biochemistry [q-bio.BM]Dyslipidemiasbusiness.industry[SDV.OT] Life Sciences [q-bio]/Other [q-bio.OT]PCSK9nutritional and metabolic diseases[SDV.MHEP.HEG]Life Sciences [q-bio]/Human health and pathology/Hépatology and Gastroenterology[SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry Molecular Biology/Molecular biologymedicine.diseaseLipid Metabolism[SDV.MHEP.HEG] Life Sciences [q-bio]/Human health and pathology/Hépatology and GastroenterologyMice Inbred C57BL030104 developmental biologyEndocrinologyGlucoseLDL receptorbiology.proteinHepatocytes[SDV.SP.PHARMA]Life Sciences [q-bio]/Pharmaceutical sciences/PharmacologySteatosisbusinessDyslipidemia
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CD36 Displays Features of a Lipid-Sensor Involved in Chylomicron Processing in the Rodent Small Intestine

2010

International audience; The membrane glycoprotein CD36 binds nanomolar concentrations of long-chain fatty acids (LCFA) and is highly expressed on the luminal surface of enterocytes. CD36 deficiency reduces chylomicron production through unknown mechanisms.In this report, we provide novel insights into the potential underlying mechanisms. Our in vivo data demonstrated that CD36 gene deletion in mice did not affect LCFA uptake and their subsequent esterification into triglycerides by the intestinal mucosa at micellar LCFA concentrations prevailing in the intestine. In rodents, CD36 protein early disappeared from the luminal side of intestinal villi during the post-prandial period but only whe…

medicine.medical_specialtyRodent030309 nutrition & dietetics[SDV]Life Sciences [q-bio]CD36030209 endocrinology & metabolismGastroenterology03 medical and health sciences0302 clinical medicineInternal medicinebiology.animalparasitic diseasesInternal Medicinemedicine0303 health sciencesbiologyChemistryGeneral MedicineSmall intestineCell biologymedicine.anatomical_structurebiology.proteinlipids (amino acids peptides and proteins)Cardiology and Cardiovascular Medicine[SDV.AEN]Life Sciences [q-bio]/Food and NutritionChylomicronAtherosclerosis Supplements
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A role for the peroxisomal 3-ketoacyl-CoA thiolase B enzyme in the control of PPARα-mediated upregulation of SREBP-2 target genes in the liver.: ThB …

2011

International audience; Peroxisomal 3-ketoacyl-CoA thiolase B (Thb) catalyzes the final step in the peroxisomal β-oxidation of straight-chain acyl-CoAs and is under the transcription control of the nuclear hormone receptor PPARα. PPARα binds to and is activated by the synthetic compound Wy14,643 (Wy). Here, we show that the magnitude of Wy-mediated induction of peroxisomal β-oxidation of radiolabeled (1-(14)C) palmitate was significantly reduced in mice deficient for Thb. In contrast, mitochondrial β-oxidation was unaltered in Thb(-/-) mice. Given that Wy-treatment induced Acox1 and MFP-1/-2 activity at a similar level in both genotypes, we concluded that the thiolase step alone was respons…

MaleMESH: HepatomegalyPalmitatesMESH : PyrimidinesMESH : Gene DeletionBiochemistryelement-binding proteinsMESH : Acetyl-CoA C-AcyltransferaseMiceMESH: Up-RegulationMESH: AnimalsMESH : Up-RegulationMESH: Lipid Metabolism0303 health sciencesMESH : Gene Expression RegulationThiolase030302 biochemistry & molecular biologyGeneral MedicineMESH : HepatomegalyUp-Regulationzellweger-syndromePeroxisome ProliferatorsMESH: Peroxisome ProliferatorsHepatomegalySterol Regulatory Element Binding Protein 2peroxisomal 3-ketoacyl-CoA thiolase BMESH: Mitochondria3-oxoacyl-coa thiolaseLathosterolfatty-acid oxidationrat-liverMESH: Sterol Regulatory Element Binding Protein 203 medical and health sciencesMESH : Sterol Regulatory Element Binding Protein 2HumansPPAR alphaMESH : Peroxisome Proliferators[ SDV.BBM ] Life Sciences [q-bio]/Biochemistry Molecular BiologyPPARaVLAGMESH : Oxidation-ReductionFatty Acid Oxidation.MESH: HumansCholesterolMESH : HumanscholesterolLipid MetabolismMESH: PeroxisomesSterol regulatory element-binding proteinchemistryMESH: PyrimidinesCholesterol; Micro-array analysis; Peroxisomal 3-ketoacyl-CoA thiolase B; PPARα and SREBP-2; Wy14643Fatty Acid OxidationGene DeletionMESH: LiverMESH: Oxidation-ReductionMESH: Signal TransductionMESH: Mice KnockoutVoeding Metabolisme en Genomicachemistry.chemical_compoundMESH: CholesterolMESH : Lipid MetabolismWy14MESH : PalmitatesMESH: PPAR alphaMESH : CholesterolMice Knockoutneuronal migration643PeroxisomeAcetyl-CoA C-AcyltransferaseMESH: Gene Expression RegulationMetabolism and GenomicsMitochondriaLiverBiochemistryMicro-array analysisMetabolisme en GenomicaACOX1Nutrition Metabolism and GenomicsMESH : MitochondriaOxidation-ReductionSignal Transductionacyl-coa oxidasecholesterol-synthesisMESH : MaleMESH : PPAR alphaPeroxisome ProliferationPPARα and SREBP-2Biologybeta-oxidationVoedingproliferator-activated receptorsMESH : MicePeroxisomesAnimals[SDV.BBM]Life Sciences [q-bio]/Biochemistry Molecular BiologyMESH: Mice030304 developmental biologySCP2NutritionMESH : Signal TransductionMESH : LiverMESH: PalmitatesMESH: MalePyrimidinesMESH: Acetyl-CoA C-AcyltransferaseGene Expression RegulationMESH: Gene DeletionMESH : Mice KnockoutMESH : AnimalsMESH : Peroxisomes
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Conjugated linoleic acid isomers in mitochondria

2002

The beneficial effects exerted by low amounts of conjugated linoleic acids (C222222237) suggest that CLA are maximally conserved and raise the question about their mitochondrial oxidizability. Cis-9,trans-11-C18:2 (CLA1) and trans-10,cis-12-C18:2 (CLA2) were compared to cis-9,cis-12-C18:2 (linoleic acid; LA) and cis-9-C16:1 (palmitoleic acid; PA), as substrates for total fatty acid (FA) oxidation and for the enzymatic steps required for the entry of FA into rat liver mitochondria. Oxygen consumption rate was lowest when CLA1 was used as a substrate with that on CLA2 being intermediate between it and the respiration on LA and PA. The order of the radiolabeled FA oxidation rate was PA >> LA >…

030309 nutrition & dieteticsConjugated linoleic acidLinoleic acidCAT-IIchemistry.chemical_elementQD415-436BiochemistryOxygenacyl-CoA synthetase03 medical and health scienceschemistry.chemical_compoundEndocrinologymedicinePalmitoleic acidCarnitineBeta oxidation030304 developmental biologychemistry.chemical_classification0303 health sciencescarnitineFatty acidCell BiologyCLAEnzymechemistryBiochemistryCAT-Irespirationmedicine.drugJournal of Lipid Research
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Mitochondrial respiration on rumenic and linoleic acids

2001

Rumenic acid ( cis -9, trans -11-C 18:2 ) represents approx. 80% of conjugated linoleic acid (CLA) in dairy products. CLA has been shown to exert beneficial effects on health, but little work has been devoted to the ability to oxidize CLA isomers and the role of these isomers in the modulation of β-oxidation flux. In the present study, respiration on rumenic acid was compared with that on linoleic acid ( cis -9, cis -12-C 18:2 ) with the use of rat liver mitochondria. In state-3, respiration was decreased by half with rumenic acid in comparison with linoleic acid. In the uncoupled state, respiration on CLA remained 30% lower. The lower ability to oxidize CLA was investigated through charact…

Linoleic acidConjugated linoleic acidCell RespirationMitochondria LiverMitochondrionBiochemistryFatty Acids MonounsaturatedLinoleic Acidchemistry.chemical_compoundOxygen ConsumptionCoenzyme A LigasesRespirationmedicineAnimalsPalmitoleic acidCarnitineATP synthasebiologyRumenic acidfood and beveragesStereoisomerismRatsCarnitine AcyltransferasesLiverchemistryBiochemistrybiology.proteinCattleDairy ProductsCaprylatesStearic Acidsmedicine.drugBiochemical Society Transactions
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Moderate consumption of beer reduces liver triglycerides and aortic cholesterol deposit in LDLr-/- apoB100/100 mice.

2006

This study was designed to address the effects of a moderate consumption of beer on serum and liver lipid parameters and on the development of aortic lesions in a mouse model associated with a human atherogenic lipoprotein profile. LDLr(-/-) apoB(100/100) mice received each day during 12 weeks either water, mild beer (0.570g of ethanol/kg of body weight) or ethanol-free beer in a single pure dose. Serum and liver lipid parameters were analyzed and atherosclerotic lesions were estimated in heart and aorta through their total cholesterol content. mRNA levels of enzymes and receptors involved in lipoprotein uptake, in fatty acid esterification and oxidation, and in reverse cholesterol transpor…

medicine.medical_specialtyApolipoprotein BAlcohol DrinkingCholesterol VLDLAortic DiseasesPalmitatesDown-RegulationAorta ThoracicMitochondria LiverPolymerase Chain ReactionPhosphatidylcholine-Sterol O-Acyltransferasechemistry.chemical_compoundMiceInternal medicinemedicineAnimalsRNA MessengerScavenger receptorChromatography High Pressure LiquidTriglyceridesApolipoproteins BbiologyTriglycerideCholesterolReverse cholesterol transportCholesterol HDLfood and beveragesBeerLipoprotein(a)Cholesterol LDLScavenger Receptors Class BAtherosclerosisMice Inbred C57BLEndocrinologychemistryLiverReceptors LDLLDL receptorbehavior and behavior mechanismsbiology.proteinlipids (amino acids peptides and proteins)FemaleCardiology and Cardiovascular MedicineOxidation-ReductionLipoproteinSterol Regulatory Element Binding Protein 2Atherosclerosis
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Liraglutide Increases the Catabolism of Apolipoprotein B100–Containing Lipoproteins in Patients With Type 2 Diabetes and Reduces Proprotein Convertas…

2021

OBJECTIVE Dyslipidemia observed in type 2 diabetes (T2D) is atherogenic. Important features of diabetic dyslipidemia are increased levels of triglyceride-rich lipoproteins and small dense LDL particles, which all have apolipoprotein B100 (apoB100) as a major apolipoprotein. This prompted us to study the effect of the GLP-1 agonist liraglutide on the metabolism of apoB100-containing lipoproteins. RESEARCH DESIGN AND METHODS We performed an in vivo kinetic study with stable isotopes (L-[1-13C]leucine) in 10 patients with T2D before and after 6 months of treatment with liraglutide (1.2 mg/day). We also evaluated in mice the effect of liraglutide on the expression of genes involved in apoB100-…

medicine.medical_specialtyApolipoprotein BEndocrinology Diabetes and MetabolismLipoproteinsAdipose tissue030209 endocrinology & metabolismLipoproteins VLDL03 medical and health sciencesMice0302 clinical medicineInternal medicineInternal MedicinemedicineAnimalsHumans030212 general & internal medicineSubtilisinsAdvanced and Specialized NursingbiologyCatabolismLiraglutidebusiness.industryPCSK9Liraglutidemedicine.diseaseLipoproteins LDLEndocrinologyDiabetes Mellitus Type 2biology.proteinKexinProprotein Convertase 9businessRetinol-Binding Proteins PlasmaDyslipidemiamedicine.drugLipoprotein
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Fatty acid oxidation and related gene expression in heart depleted of carnitine by mildronate treatment in the rat.

2004

The metabolic and genic effects induced by a 20-fold lowering of carnitine content in the heart were studied in mildronate-treated rats. In the perfused heart, the proportion of palmitate taken up then oxidized was 5-10% lower, while the triacylglycerol (TAG) formation was 100% greater than in controls. The treatment was shown to increase the maximal capacity of heart homogenates to oxidize palmitate, the mRNA level of carnitine palmitoyltransferase I (CPT-I) isoforms, the specific activity of CPT-I in subsarcolemmal mitochondria and the total carnitine content of isolated mitochondria. Concomitantly, the increased mRNA expression of lipoprotein lipase, fatty acid translocase and enzymes of…

MaleClinical BiochemistryPalmitic AcidBlood lipidsBiologyMitochondrionIn Vitro TechniquesMitochondria HeartOxygen ConsumptionCarnitinemedicineAnimalsCarnitineRNA MessengerRats WistarMolecular BiologyBeta oxidationHeart metabolismTriglycerideschemistry.chemical_classificationLipoprotein lipaseCarnitine O-PalmitoyltransferaseEsterificationMyocardiumFatty AcidsFatty acidBiological TransportCardiovascular AgentsCell BiologyGeneral MedicineRatsPerfusionLipoprotein LipasechemistryBiochemistryGene Expression RegulationCarnitine palmitoyltransferase IOxidation-Reductionmedicine.drugMethylhydrazinesMolecular and cellular biochemistry
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Different effects of pioglitazone and rosiglitazone on lipid metabolism in mouse cultured liver explants.

2010

Background Pioglitazone (PIO) and rosiglitazone (ROSI) are widely used as oral antidiabetic agents for treatment of type 2 diabetes. Although these medications exert similar effects on blood glucose, recent clinical studies indicated that PIO has a more pronounced beneficial effect on lipid parameters than ROSI. In order to get further insight into the lipid effects of both drugs, we tested whether PIO, compared to ROSI, could exert direct effects on lipid liver metabolism in relation with plasma lipids. Methods We performed in vitro studies using mice liver slices incubated 21 h either with ROSI (1 µmol/L) or PIO (7.5 µmol/L). Results We showed that both glitazones slightly reduced HMG-CoA…

medicine.medical_specialtyApolipoprotein BEndocrinology Diabetes and MetabolismRosiglitazoneTissue Culture Techniqueschemistry.chemical_compoundMiceEndocrinologyInternal medicineInternal MedicinemedicineAnimalsHumansScavenger receptorGlycated HemoglobinbiologyPioglitazoneCholesterolbusiness.industryCholesterol HDLLipid metabolismLipaseLipid MetabolismMice Inbred C57BLPPAR gammaEndocrinologychemistryLiverLipogenesisbiology.proteinThiazolidinedionesHepatic lipaseRosiglitazonebusinessPioglitazonemedicine.drugDiabetes/metabolism research and reviews
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Hepatic steatosis is not due to impaired fatty acid oxidation capacities in C57BL/6J mice fed the conjugated trans-10,cis-12-isomer of linoleic acid.

2004

Decreased body fat mass and liver steatosis have been reported in mice fed diets containing the conjugated linoleic acid trans-10,cis-12-C18:2 (CLA2), but not in those fed diets containing cis-9,trans-11-C18:2 (CLA1). Because the decrease in fatty acid (FA) oxidation may cause fat accumulation, we questioned whether the effects of both CLAs on enzyme activities and mRNA expression were related to liver FA oxidation. To address this question, 7-wk-old male C57BL/6J mice were fed for 4 wk a diet supplemented with 1% CLA1, CLA2, or cis-9-C18:1 (control) esterified as triacylglycerols. In CLA2-fed mice, the proportions of CLA2 in the total FA of liver lipids were substantially lower than those …

Malemedicine.medical_specialtyLinoleic acidConjugated linoleic acidMedicine (miscellaneous)Mitochondria LiverBiologychemistry.chemical_compoundMiceDietary Fats UnsaturatedInternal medicinemedicineAnimalsLinoleic Acids ConjugatedCarnitineRNA MessengerEnzyme InhibitorsUnsaturated fatty acidTriglycerideschemistry.chemical_classificationNutrition and DieteticsCarnitine O-PalmitoyltransferaseEsterificationReverse Transcriptase Polymerase Chain ReactionFatty liverFatty AcidsFatty acidmedicine.diseaseFatty LiverMalonyl Coenzyme AMice Inbred C57BLEndocrinologychemistryBiochemistryLiverCarnitine palmitoyltransferase IOxidation-ReductionPolyunsaturated fatty acidmedicine.drug
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Overactivation of the endocannabinoid system alters the antilipolytic action of insulin in mouse adipose tissue.

2017

Evidence has accumulated that obesity-related metabolic dysregulation is associated with overactivation of the endocannabinoid system (ECS), which involves cannabinoid receptor 1 (CB1R), in peripheral tissues, including adipose tissue (AT). The functional consequences of CB1R activation on AT metabolism remain unclear. Since excess fat mobilization is considered an important primary event contributing to the onset of insulin resistance, we combined in vivo and in vitro experiments to investigate whether activation of ECS could alter the lipolytic rate. For this purpose, the appearance of plasma glycerol was measured in wild-type and CB1R−/− mice after acute anandamide administration or inh…

0301 basic medicineMalemedicine.medical_specialtyPhysiologyEndocrinology Diabetes and Metabolismmedicine.medical_treatmentAdipose tissue030209 endocrinology & metabolismBiologyFatty Acids NonesterifiedCANNABINOID RECEPTOR 103 medical and health scienceschemistry.chemical_compoundMice0302 clinical medicineInsulin resistanceDownregulation and upregulationReceptor Cannabinoid CB1Physiology (medical)Internal medicineinsulin resistancemedicineLipolysisAnimalsInsulinendocannabinoid systemInsulinHydrolysis[ SDV.MHEP.EM ] Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolismmedicine.diseaseEndocannabinoid systemUp-RegulationJZL195Mice Inbred C57BLcannabinoid receptor 1030104 developmental biologyEndocrinologychemistryAdipose TissuelipolysisJZL195Endocannabinoids
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Early Low-Fat Diet Enriched With Linolenic Acid Reduces Liver Endocannabinoid Tone and Improves Late Glycemic Control After a High-Fat Diet Challenge…

2016

International audience; Evidence suggests that alterations of glucose and lipid homeostasis induced by obesity are associated with the elevation of endocannabinoid tone. The biosynthesis of the two main endocannabinoids, N-arachidonoylethanolamine and 2-arachidonoyl-glycerol, which derive from arachidonic acid, is influenced by dietary fatty acids (FAs). We investigated whether exposure to n-3 FA at a young age may decrease tissue endocannabinoid levels and prevent metabolic disorders induced by a later high-fat diet (HFD) challenge. Three-week-old mice received a 5% lipid diet containing lard, lard plus safflower oil, or lard plus linseed oil for 10 weeks. Then, mice were challenged with a…

Blood Glucose0301 basic medicinemedicine.medical_specialty[ SDV.AEN ] Life Sciences [q-bio]/Food and NutritionEndocrinology Diabetes and MetabolismMice TransgenicCarbohydrate metabolismBiologyDiet High-FatMice03 medical and health scienceschemistry.chemical_compoundInternal medicineInternal MedicinemedicineAnimalsHomeostasisObesityDiet Fat-RestrictedGlycemic2. Zero hungerdiabetesalpha-Linolenic acidBody WeightFatty liveralpha-Linolenic AcidLipid metabolismLipid Metabolismmedicine.diseaseEndocannabinoid system3. Good healthFatty LiverMice Inbred C57BL[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition030104 developmental biologyEndocrinologyLiverchemistryendocananbinoid systemCarbohydrate MetabolismArachidonic acidlipids (amino acids peptides and proteins)Metabolic syndrome[SDV.AEN]Life Sciences [q-bio]/Food and NutritionEndocannabinoids
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Intestinal CD36. A lipid-sensor involved in the processing of chylomicrons in rodents

2011

International audience; CD36 is a multifunctional glycoprotein which binds nanomolar concentrations of long-chain fatty acids (LCFA) and is highly expressed on the luminal surface of enterocytes. Despite of its implication in oleoylethanolamide (OEA) and chylomicron synthesis, CD36 function in small intestine remains incompletely understood. Our in vivo data demonstrated that CD36 gene deletion in mice did not affect intestinal LCFA uptake. CD36 protein disappeared early from the luminal side of intestinal villi during the post-prandial period but only when the diet contained lipids. This drop was significant 1 h after a lipid supply and was associated with ubiquitination of CD36. Using CHO…

030309 nutrition & dieteticsCD36[SDV]Life Sciences [q-bio]030209 endocrinology & metabolism03 medical and health sciencesOleoylethanolamidechemistry.chemical_compound0302 clinical medicineIn vivoparasitic diseasesmedicineLipid sensorGeneral Psychology0303 health sciencesNutrition and DieteticsbiologyChinese hamster ovary cellSmall intestine3. Good healthCell biologymedicine.anatomical_structurechemistryProteasome inhibitorbiology.proteinlipids (amino acids peptides and proteins)CD36[SDV.AEN]Life Sciences [q-bio]/Food and NutritionEx vivomedicine.drugChylomicron
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Regulation of lipid flux between liver and adipose tissue during transient hepatic steatosis in carnitine-depleted rats

2007

Rats with carnitine deficiency due to trimethylhydrazinium propionate (mildronate) administered at 80 mg/100 g body weight per day for 10 days developed liver steatosis only upon fasting. This study aimed to determine whether the transient steatosis resulted from triglyceride accumulation due to the amount of fatty acids preserved through impaired fatty acid oxidation and/or from up-regulation of lipid exchange between liver and adipose tissue. In liver, mildronate decreased the carnitine content by approximately 13-fold and, in fasted rats, lowered the palmitate oxidation rate by 50% in the perfused organ, increased 9-fold the triglyceride content, and doubled the hepatic very low density …

Malemedicine.medical_specialtyVery low-density lipoproteintissu adipeuxAdipose tissuerattus rattusBiochemistry03 medical and health scienceschemistry.chemical_compound0302 clinical medicinestéatose hépatiqueCarnitineInternal medicinemedicineAnimalsLipolysisCarnitineRats Wistarpathologie animaleMolecular BiologyBeta oxidationlipide030304 developmental biologychemistry.chemical_classification0303 health sciencesTriglycerideFatty AcidsFatty acidCell Biologyfoiemedicine.diseaseLipidsRats[SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry Molecular Biology/Biomolecules [q-bio.BM]Fatty LiverLipoproteins LDLLipoprotein LipaseEndocrinologyAdipose TissueGene Expression RegulationLiverchemistryHepatocytesRATSteatosisTriolein030217 neurology & neurosurgerymedicine.drug
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Vaccenic and elaidic acid equally esterify into triacylglycerols, but differently into phospholipids of fed rat liver cells.

2011

Elaidic acid (trans-9-C18:1 or trans-9) is assumed to exert atherogenic effects due to its double bond configuration. The possibility that trans-9 and vaccenic acid (trans-11-C18:1 or trans-11), its positional isomer, were biochemically equivalent and interchangeable compounds, was investigated by reference to their cis-isomers through esterification-related activities using rat liver cells and subcellular fractions. In hepatocytes, both trans-C18:1 were incorporated to the same extent in triacylglycerols, but trans-9 was more esterified than trans-11 into phospholipids (P < 0.05). Glycerol-3-phosphate acyltransferase activity in microsomes was lower with trans-11 than with trans-9, while t…

MaleLipoproteinsPhospholipidCell Culture TechniquesVaccenic acidGene ExpressionOleic AcidsBiochemistrychemistry.chemical_compoundIsomerismMicrosomesAnimalsRats WistarPhospholipidsTriglycerideschemistry.chemical_classificationEsterificationCholesterolOrganic ChemistryFatty acidCell BiologyElaidic acidMitochondriaRatsEnzymeCholesterolchemistryBiochemistryLiverTherapeutic EquivalencyAcyltransferaseGlycerol-3-Phosphate O-AcyltransferaseMicrosomeHepatocyteslipids (amino acids peptides and proteins)Oleic AcidLipids
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Utilization of different dietary lipid sources at high level in herbivorous grass carp (Ctenopharyngodon idella): mechanism related to hepatic fatty …

2008

Herbivorous grass carp (Ctenopharyngodon idella) has been reported to exhibit low capacity to utilize high dietary lipid, but different lipid sources might affect this limited capacity. In order to compare the effects of different lipid sources with different lipid levels, juvenile grass carp were fed one of nine diets containing three oils [lard, plant oil mixed by maize and linseed oil, and n-3 high unsaturated fatty acid-enriched (HUFA-enriched) fish oil] at three lipid levels (20, 60 and 100 g kg(-1) dry diet) for 8 weeks. Decreased feed intake, poor growth performance, hepatic pathology and higher blood lipid peroxidation were found in 60 and 100 g kg(-1) fish oil groups. Conversely, i…

chemistry.chemical_classificationfood.ingredientCholesterolDietary lipidBlood lipidsFatty acidAquatic ScienceBiologyFish oilbiology.organism_classificationGrass carpchemistry.chemical_compoundfoodchemistryBiochemistryLinseed oilFood scienceBeta oxidationAquaculture Nutrition
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O45 L’activation des récepteurs aux endocannabinoïdes CB1R du tissu adipeux inhibe l’action anti-lipolytique de l’insuline

2014

Introduction Il est maintenant bien etabli que l’obesite est associee a une suractivation du systeme endocannabinoide (SEC). Des travaux recents suggerent que le blocage des recepteurs aux endocannabinoides 1 (CB1R) peripheriques conduit a une amelioration du metabolisme glucidique et lipidique independamment des effets centraux modulant la prise alimentaire. Le role du SEC dans le tissu adipeux etant encore mal defini, cette etude vise a preciser les consequences de l’activation des CB1R sur la lipolyse. Materiels et methodes Les effets de l’anandamide (endocannabinoide) sur l’activite lipolytique estimee par la production de glycerol plasmatique ont ete testes chez la souris in vivo apres…

EndocrinologyEndocrinology Diabetes and MetabolismInternal MedicineGeneral MedicineDiabetes &amp; Metabolism
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Inhibited fatty acid β-oxidation impairs stress resistance ability in Nile tilapia (Oreochromis niloticus)

2017

Energy metabolism plays important roles in stress resistance and immunity in mammals, however, such functions have not been established in fish. In the present study, Nile tilapia (Oreochromis niloticus) was fed with mildronate, an inhibitor of mitochondrial fatty acid (FA) β-oxidation, for six weeks subsequently challenged with Aeromonas hydrophila and ammonia nitrogen exposure. Mildronate treatment reduced significantly l-carnitine concentration and mitochondrial FA β-oxidation efficiency, while it increased lipid accumulation in liver. The fish with inhibited hepatic FA catabolism had lower survival rate when exposed to Aeromonas hydrophila and ammonia nitrogen. Moreover, fish fed mildro…

0301 basic medicineNitrogenAquatic ScienceMitochondrionFish DiseasesRandom Allocation03 medical and health sciencesNile tilapiaImmune systemAmmoniaStress PhysiologicalCarnitinemedicineAnimalsEnvironmental ChemistryCarnitinechemistry.chemical_classificationbiologyCatabolismFatty AcidsFatty acidCichlids04 agricultural and veterinary sciencesGeneral Medicinebiology.organism_classificationAnimal FeedAeromonas hydrophilaDietMitochondriaOreochromisAeromonas hydrophila030104 developmental biologychemistryBiochemistryDietary Supplements040102 fisheries0401 agriculture forestry and fisheriesGram-Negative Bacterial InfectionsOxidation-ReductionMethylhydrazinesmedicine.drugFish &amp; Shellfish Immunology
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Liraglutide Reduces Postprandial Hyperlipidemia by Increasing ApoB48 (Apolipoprotein B48) Catabolism and by Reducing ApoB48 Production in Patients Wi…

2018

Objective— Treatment with liraglutide, a GLP-1 (glucagon-like peptide-1) agonist, has been shown to reduce postprandial lipidemia, an important feature of diabetic dyslipidemia. However, the underlying mechanisms for this effect remain unknown. This prompted us to study the effect of liraglutide on the metabolism of ApoB48 (apolipoprotein B48). Approach and Results— We performed an in vivo kinetic study with stable isotopes (D 8 -valine) in the fed state in 10 patients with type 2 diabetes mellitus before treatment and 6 months after the initiation of treatment with liraglutide (1.2 mg/d). We also evaluated, in mice, the effect of a 1-week liraglutide treatment on postload triglycerides an…

MaleApolipoprotein B-48Agonistmedicine.medical_specialtymedicine.drug_classhyperlipidemiasGene Expression030209 endocrinology & metabolism030204 cardiovascular system & hematologypatients03 medical and health sciences0302 clinical medicineInternal medicineDiabetes mellitusChylomicronsHyperlipidemiaAnimalsHumansMedicineDiacylglycerol O-AcyltransferaseProspective StudiesTriglycerides[SDV.MHEP.EM] Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolismMice Inbred BALB Cliraglutidebusiness.industryLiraglutideCatabolismType 2 Diabetes Mellitus[SDV.MHEP.EM]Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolismPostprandial Periodmedicine.diseaseLipoprotein LipaseJejunumEndocrinologyPostprandialAdipose TissueDiabetes Mellitus Type 2kineticsdiabetes mellitusFemaleApolipoprotein B-48Carrier ProteinsCardiology and Cardiovascular Medicinebusinessmedicine.drug
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Luminal Lipid Regulates CD36 Levels and Downstream Signaling to Stimulate Chylomicron Synthesis

2011

International audience; The membrane glycoprotein CD36 binds nanomolar concentrations of long chain fatty acids (LCFA) and is highly expressed on the luminal surface of enterocytes. CD36 deficiency reduces chylomicron production through unknown mechanisms. In this report, we provide novel insights into some of the underlying mechanisms. Our in vivo data demonstrate that CD36 gene deletion in mice does not affect LCFA uptake and subsequent esterification into triglycerides by the intestinal mucosa exposed to the micellar LCFA concentrations prevailing in the intestine. In rodents, the CD36 protein disappears early from the luminal side of intestinal villi during the postprandial period, but …

CD36 AntigensMaleMTPCD36[SDV]Life Sciences [q-bio]BiochemistryMicrosomal triglyceride transfer proteinMice0302 clinical medicineIntestinal mucosaCricetinaeChylomicronsLipoproteinHypertriglyceridemiaMice Knockout0303 health sciencesMitogen-Activated Protein Kinase 3biologyPostprandial PeriodLipid-binding ProteinIntestineApoB48ERKmedicine.anatomical_structurePostprandialBiochemistrylipids (amino acids peptides and proteins)Apolipoprotein B-48MAP Kinase Signaling SystemEnterocyteCHO CellsChylomicron03 medical and health sciencesCricetulusparasitic diseasesmedicineAnimalsRats WistarMolecular Biology030304 developmental biologyUbiquitinationLipid absorptionLipid metabolismCell BiologyLipid MetabolismRatsEnterocytesMetabolismbiology.proteinApolipoprotein B-48CD36[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition030217 neurology & neurosurgeryChylomicron
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P259 Identification de nouveaux antagonistes des récepteurs aux endocannabinoïdes à action périphérique susceptibles d’améliorer les paramètres gluci…

2014

Introduction Le systeme endocannabinoide (SEC) est une cible therapeutique potentielle pour lutter contre l’obesite. Ainsi, le Rimonabant®, un antagoniste des recepteurs aux endocannabinoides 1 (CB1R) diminue la masse corporelle et ameliore les parametres glucido-lipidiques de patients obeses. Neanmoins, ce medicament a ete retire du marche suite a des effets centraux induisant des troubles neuropsychiatriques. L’objectif de cette etude est d’identifier des analogues du Rimonabant® a action peripherique susceptibles d’avoir des effets benefiques sur le metabolisme glucido-lipidique de la souris. Materiels et methodes Des analogues du Rimonabant® ne passant pas la barriere hemato-encephaliqu…

EndocrinologyEndocrinology Diabetes and MetabolismInternal MedicineGeneral MedicineDiabetes &amp; Metabolism
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Disturbances in cholesterol, bile acid and glucose metabolism in peroxisomal 3-ketoacylCoA thiolase B deficient mice fed diets containing high or low…

2014

SPE IPM UB; International audience; : The peroxisomal 3-ketoacyl-CoA thiolase B (ThB) catalyzes the thiolytic cleavage of straight chain 3-ketoacyl-CoAs. Up to now, the ability of ThB to interfere with lipid metabolism was studied in mice fed a routinely laboratory chow enriched or not with the synthetic agonist Wy14,643, a pharmacological activator of the nuclear hormone receptor PPARα. The aim of the present study was therefore to determine whether ThB could play a role in obesity and lipid metabolism when mice are chronically fed a synthetic High Fat Diet (HFD) or a Low Fat Diet (LFD) as a control diet. To investigate this possibility, wild-type (WT) mice and mice deficient for Thb (Thb(…

lathosterol.medicine.medical_specialtymedicine.drug_classLathosterolCarbohydrate metabolismBiologyCholesterol 7 alpha-hydroxylaseDiet High-FatBiochemistrylathosterolBile Acids and Saltschemistry.chemical_compoundMiceInternal medicineIntestine Smallmedicine[SDV.BBM] Life Sciences [q-bio]/Biochemistry Molecular BiologyAnimals[SDV.BBM]Life Sciences [q-bio]/Biochemistry Molecular BiologyInsulin-Like Growth Factor I[ SDV.BBM ] Life Sciences [q-bio]/Biochemistry Molecular Biology2. Zero hunger[SDV.MHEP.EM] Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolismbile acidsBile acidFatty acid metabolismCholesterolCholesterol HDLfood and beveragesLipid metabolismGeneral Medicine[SDV.MHEP.EM]Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolism[ SDV.MHEP.EM ] Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolismAcetyl-CoA C-AcyltransferaseDietary FatsLiver GlycogenEndocrinologyCholesterolGlucosehypoglycemiade novo biosynthesis of cholesterolchemistryGrowth HormoneACOX1lipids (amino acids peptides and proteins)peroxisomal 3-ketoacyl-CoA thiolase B
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Identification de nouveaux antagonistes des récepteurs aux endocannabinoïdes à action périphérique susceptibles d'améliorer les paramètres glucido-li…

2014

Identification de nouveaux antagonistes des récepteurs aux endocannabinoïdes à action périphérique susceptibles d'améliorer les paramètres glucido-lipidiques chez la souris obèse. 30. réunion de l’association française d’étude et de recherche sur l’Obésite (AFERO)

[SDV.MHEP.ME] Life Sciences [q-bio]/Human health and pathology/Emerging diseases[SDV.MHEP.ME]Life Sciences [q-bio]/Human health and pathology/Emerging diseases[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition[ SDV.MHEP.ME ] Life Sciences [q-bio]/Human health and pathology/Emerging diseases[ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
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