0000000000583119

AUTHOR

Mahfoud Assem

showing 2 related works from this author

Downregulation and Nuclear Relocation of MLP During the Progression of Right Ventricular Hypertrophy Induced by Chronic Pressure Overload

2000

Abstract The cardiac LIM domain protein MLP plays a crucial role in the architecture and mechanical function of cardiac myocytes. Mice lacking the MLP gene develop cardiac hypertrophy, dilated cardiopathy and heart failure. We investigated whether downregulation of MLP is induced by pressure overload and contributes to the physiopathology of cardiac hypertrophy and failure. We studied this mechanism in rat right ventricles submitted to pulmonary arterial hypertension, because it is known that this ventricle is very vulnerable to the deleterious effects of pressure overload. During the progression of cardiac hypertrophy to failure over a 31 days period there was a dramatic decrease by 50% of…

MaleCytoplasmmedicine.medical_specialtyTime FactorsTranscription GeneticHeart VentriclesDown-RegulationMuscle ProteinsCardiomegalyCytosolMyofibrilsDownregulation and upregulationRight ventricular hypertrophyInternal medicinePressureAnimalsVentricular FunctionMedicineMyocyteRNA MessengerRats WistarLungMolecular BiologyCell NucleusHomeodomain ProteinsPressure overloadReverse Transcriptase Polymerase Chain Reactionbusiness.industryMyocardiumLIM Domain Proteinsmedicine.diseaseImmunohistochemistryPulmonary hypertensionRatsMicroscopy Electronmedicine.anatomical_structureVentricleHeart failureCardiologyCardiology and Cardiovascular MedicinebusinessMyofibrilJournal of Molecular and Cellular Cardiology
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Constitutive androstane receptor activation stimulates faecal bile acid excretion and reverse cholesterol transport in mice.

2010

The constitutive androstane receptor (CAR) is a nuclear receptor expressed in the liver and involved in xenobiotic metabolism. The aim of this study was to assess whether pharmacological CAR activation could affect neutral sterol and bile acid elimination under conditions of cholesterol overload.Wild type, Car-/-, ApoE-/-, and low-density lipoprotein receptor (Ldlr)-/- mice fed a western-type diet were treated with the CAR agonist TCPOBOP.CAR activation was associated with a decrease in faecal cholesterol output related to the repression of the Abcg5/g8 cholesterol transporters. In contrast, TCPOBOP treatment induced a marked increase (up to three fold, p0.01) in the elimination of faecal b…

medicine.medical_specialtymedicine.drug_classPyridinesLipoproteinsBiological Transport ActiveGene ExpressionReceptors Cytoplasmic and NuclearHyperlipidemiasBiologyCholesterol 7 alpha-hydroxylaseBile Acids and Saltschemistry.chemical_compoundFecesMiceApolipoproteins EInternal medicineConstitutive androstane receptormedicineAnimalsHomeostasisATP Binding Cassette Transporter Subfamily G Member 5Liver X receptorConstitutive Androstane ReceptorMice KnockoutHepatologyBile acidCholesterolReverse cholesterol transportATP Binding Cassette Transporter Subfamily G Member 8Cholesterol HDLAtherosclerosisSterolMice Inbred C57BLEndocrinologyCholesterolchemistryLiverReceptors LDLLDL receptorlipids (amino acids peptides and proteins)ATP-Binding Cassette TransportersJournal of hepatology
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