2024
Molecular Imaging of Collagen Turnover in Myocardial Infarction
Neishabouri A, Ghim M, Ahmad A, Kukreja G, Zhang Z, Li J, Salarian M, Toczek J, Gona K, Hedayatyanfard K, Zhang J, Huang H, Yu S, Sadeghi M. Molecular Imaging of Collagen Turnover in Myocardial Infarction. Journal Of Nuclear Cardiology 2024, 38: 101998. DOI: 10.1016/j.nuclcard.2024.101998.Peer-Reviewed Original Research
2023
Multimodality Imaging of Aortic Valve Calcification and Function in a Murine Model of Calcific Aortic Valve Disease and Bicuspid Aortic Valve
Ahmad A, Ghim M, Toczek J, Neishabouri A, Ojha D, Zhang Z, Gona K, Raza M, Jung J, Kukreja G, Zhang J, Guerrera N, Liu C, Sadeghi M. Multimodality Imaging of Aortic Valve Calcification and Function in a Murine Model of Calcific Aortic Valve Disease and Bicuspid Aortic Valve. Journal Of Nuclear Medicine 2023, 64: 1487-1494. PMID: 37321825, PMCID: PMC10478817, DOI: 10.2967/jnumed.123.265516.Peer-Reviewed Original ResearchConceptsF-NaF PET/CTCalcific aortic valve diseaseBicuspid aortic valvePET/CTAortic valve calcificationAortic valve diseaseAortic valveAortic stenosisValve calcificationValvular calcificationValve diseaseF-NaFSubset of miceTricuspid aortic valveDevelopment of calcificationSignificant correlationUnderwent echocardiographyMedical therapyHigh prevalencePreclinical modelsMurine modelTherapeutic interventionsAge groupsAutoradiography dataMultimodality imagingHomeostatic, Non-Canonical Role of Macrophage Elastase in Vascular Integrity
Salarian M, Ghim M, Toczek J, Han J, Weiss D, Spronck B, Ramachandra A, Jung J, Kukreja G, Zhang J, Lakheram D, Kim S, Humphrey J, Sadeghi M. Homeostatic, Non-Canonical Role of Macrophage Elastase in Vascular Integrity. Circulation Research 2023, 132: 432-448. PMID: 36691905, PMCID: PMC9930896, DOI: 10.1161/circresaha.122.322096.Peer-Reviewed Original ResearchConceptsMMP-12 deficiencyAdverse aortic remodelingAbdominal aortic aneurysmAng IIAortic remodelingAortic aneurysmMMP-12Complement component 3 levelsNeutrophil extracellular traps markersAbdominal aortic aneurysm ruptureAortic aneurysm ruptureElastic lamina degradationPlasma complement componentsAortic ruptureC3 levelsComplement depositionPlasma C5aMore neutrophilsVascular remodelingAneurysm ruptureNeutrophil elastaseAortic integrityMatrix metalloproteinaseComplement inhibitorsNETosis pathway
2022
Differential BMP Signaling Mediates the Interplay Between Genetics and Leaflet Numbers in Aortic Valve Calcification
Jung JJ, Ahmad AA, Rajendran S, Wei L, Zhang J, Toczek J, Nie L, Kukreja G, Salarian M, Gona K, Ghim M, Chakraborty R, Martin KA, Tellides G, Heistad D, Sadeghi MM. Differential BMP Signaling Mediates the Interplay Between Genetics and Leaflet Numbers in Aortic Valve Calcification. JACC Basic To Translational Science 2022, 7: 333-345. PMID: 35540096, PMCID: PMC9079798, DOI: 10.1016/j.jacbts.2021.12.006.Peer-Reviewed Original ResearchBicuspid aortic valveCalcific aortic valve diseaseAortic valve calcificationValve calcificationHuman Calcific Aortic Valve DiseaseAortic valve diseaseValve diseaseAortic valveCAVD progressionTherapeutic targetBone morphogenic proteinMorphogenic proteinMiceCalcificationDCBLD2StenosisExpressionLittermatesDiseaseBMP signalingProgression
2021
Computed tomography imaging of macrophage phagocytic activity in abdominal aortic aneurysm
Toczek J, Boodagh P, Sanzida N, Ghim M, Salarian M, Gona K, Kukreja G, Rajendran S, Wei L, Han J, Zhang J, Jung JJ, Graham M, Liu X, Sadeghi MM. Computed tomography imaging of macrophage phagocytic activity in abdominal aortic aneurysm. Theranostics 2021, 11: 5876-5888. PMID: 33897887, PMCID: PMC8058712, DOI: 10.7150/thno.55106.Peer-Reviewed Original ResearchConceptsAbdominal aortic aneurysmExiTron nano 12000AAA outcomePhagocytic activityII infusionAng IIAortic aneurysmAortic wall enhancementAng II infusionCT enhancementAngiotensin II infusionRole of inflammationFeasibility of CTMacrophage phagocytic activityNon-invasive toolAAA inductionCD68 expressionModulatory interventionsMacrophage cell lineInflammatory signalsPatient managementVascular pathologyOutcome studiesAdventitial macrophagesComputed tomography
2018
Novel Arginine-containing Macrocyclic MMP Inhibitors: Synthesis, 99mTc-labeling, and Evaluation
Ye Y, Toczek J, Gona K, Kim HY, Han J, Razavian M, Golestani R, Zhang J, Wu TL, Ghosh M, Jung JJ, Sadeghi MM. Novel Arginine-containing Macrocyclic MMP Inhibitors: Synthesis, 99mTc-labeling, and Evaluation. Scientific Reports 2018, 8: 11647. PMID: 30076321, PMCID: PMC6076275, DOI: 10.1038/s41598-018-29941-2.Peer-Reviewed Original ResearchConceptsMatrix metalloproteinasesMMP inhibitorsLung tissueTransgenic miceMMP activityHigh radiochemical purityHydroxamate MMP inhibitorsNumber of diseasesTissue remodelingSimilar inhibition potencyPotent inhibitionTherapySpecific bindingInhibitorsMolecular imagingImagingNovel arginineRadiochemical purityTissueHigh radiochemical yieldNew arginine
2017
Preclinical Evaluation of RYM1, a Matrix Metalloproteinase–Targeted Tracer for Imaging Aneurysm
Toczek J, Ye Y, Gona K, Kim HY, Han J, Razavian M, Golestani R, Zhang J, Wu TL, Jung JJ, Sadeghi MM. Preclinical Evaluation of RYM1, a Matrix Metalloproteinase–Targeted Tracer for Imaging Aneurysm. Journal Of Nuclear Medicine 2017, 58: 1318-1323. PMID: 28360209, PMCID: PMC5537616, DOI: 10.2967/jnumed.116.188656.Peer-Reviewed Original ResearchConceptsMatrix metalloproteinasesMMP activityCD68 expressionCarotid aneurysmsPreclinical evaluationAneurysm developmentAbdominal aortic aneurysm (AAA) developmentAortic MMP activityEarly vascular imagingAngiotensin II infusionLow blood levelsAortic aneurysm developmentSPECT/CT imagesReverse transcription-polymerase chain reactionSPECT/CT imagingRapid blood clearanceSmall-animal SPECT/CT imagingII infusionAortic uptakeAngiotensin IIBlood levelsPolymerase chain reactionAAA formationDeficient miceApolipoprotein E
2016
Optical imaging of MMP-12 active form in inflammation and aneurysm
Razavian M, Bordenave T, Georgiadis D, Beau F, Zhang J, Golestani R, Toczek J, Jung JJ, Ye Y, Kim HY, Han J, Dive V, Devel L, Sadeghi MM. Optical imaging of MMP-12 active form in inflammation and aneurysm. Scientific Reports 2016, 6: 38345. PMID: 27917892, PMCID: PMC5137160, DOI: 10.1038/srep38345.Peer-Reviewed Original ResearchMeSH KeywordsAneurysmAnimalsAntigens, DifferentiationCarotid ArteriesDisease Models, AnimalFluorescent DyesGene ExpressionHumansInflammationMacrophagesMatrix Metalloproteinase 12Matrix Metalloproteinase InhibitorsMiceMice, Inbred C57BLOptical ImagingPeptidesProtein BindingQuaternary Ammonium CompoundsSulfonic AcidsConceptsProbe 3Matrix metalloproteinase inhibitor, doxycycline and progression of calcific aortic valve disease in hyperlipidemic mice
Jung JJ, Razavian M, Kim HY, Ye Y, Golestani R, Toczek J, Zhang J, Sadeghi MM. Matrix metalloproteinase inhibitor, doxycycline and progression of calcific aortic valve disease in hyperlipidemic mice. Scientific Reports 2016, 6: 32659. PMID: 27619752, PMCID: PMC5020643, DOI: 10.1038/srep32659.Peer-Reviewed Original ResearchConceptsCalcific aortic valve diseaseAortic valve diseaseEffect of doxycyclineWestern dietCAVD progressionMatrix metalloproteinasesValve diseaseMicro-single photon emissionNonselective MMP inhibitorTherapeutic blood levelsLack of effectSingle photon emissionMatrix metalloproteinase inhibitorsGroups of animalsAortic stenosisMedical therapyHyperlipidemic miceEarly diseaseBlood levelsCommon causeTissue analysisMMP activationMMP inhibitionGelatinase activityDoxycyclineMatrix Metalloproteinase–Targeted Imaging of Lung Inflammation and Remodeling
Golestani R, Razavian M, Ye Y, Zhang J, Jung JJ, Toczek J, Gona K, Kim HY, Elias JA, Lee CG, Homer RJ, Sadeghi MM. Matrix Metalloproteinase–Targeted Imaging of Lung Inflammation and Remodeling. Journal Of Nuclear Medicine 2016, 58: 138-143. PMID: 27469361, PMCID: PMC5209638, DOI: 10.2967/jnumed.116.176198.Peer-Reviewed Original ResearchConceptsSmall-animal SPECT/CTSPECT/CTMatrix metalloproteinasesTg lungsLung inflammationTg miceIL-13 transgenic miceReal-time reverse transcription-polymerase chain reactionReverse transcription-polymerase chain reactionWild-type littermatesTranscription-polymerase chain reactionWild-type animalsMolecular imagingPulmonary inflammationPulmonary diseaseCD68 expressionLung diseasePolymerase chain reactionPulmonary pathologyEarly diagnosisInflammationMMP-13Transgenic miceMatrix metalloproteinaseMMP-12The neuropilin-like protein ESDN regulates insulin signaling and sensitivity
Li X, Jung JJ, Nie L, Razavian M, Zhang J, Samuel V, Sadeghi MM. The neuropilin-like protein ESDN regulates insulin signaling and sensitivity. AJP Heart And Circulatory Physiology 2016, 310: h1184-h1193. PMID: 26921437, PMCID: PMC4867389, DOI: 10.1152/ajpheart.00782.2015.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAnimalsAntigens, CDAorta, ThoracicCell MovementCell ProliferationCells, CulturedDose-Response Relationship, DrugEnzyme ActivationFemaleGenotypeGRB10 Adaptor ProteinInsulinInsulin ResistanceMaleMice, Inbred C57BLMice, KnockoutMitogen-Activated Protein KinasesMuscle, Smooth, VascularMyocytes, Smooth MuscleNeuropilinsPhenotypePhosphorylationProto-Oncogene Proteins c-aktReceptor, InsulinSignal TransductionTime FactorsUbiquitinationConceptsSignal transductionNovel regulatorSmooth muscle cell-derived neuropilin-like proteinInsulin receptorInsulin receptor signal transductionMitogen-activated protein kinase activationSrc homology 2Novel regulatory mechanismReceptor signal transductionProtein kinase BInsulin signal transductionProtein kinase activationInsulin receptor phosphorylationPleckstrin homologyHomology 2Adaptor proteinTransmembrane proteinGrowth factor receptorKinase activationVascular smooth muscle cell proliferationRegulatory mechanismsKinase BInsulin signalingReceptor phosphorylationNovel therapeutic avenues
2015
Interferon-&ggr;–Mediated Allograft Rejection Exacerbates Cardiovascular Disease of Hyperlipidemic Murine Transplant Recipients
Zhou J, Qin L, Yi T, Ali R, Li Q, Jiao Y, Li G, Tobiasova Z, Huang Y, Zhang J, Yun JJ, Sadeghi MM, Giordano FJ, Pober JS, Tellides G. Interferon-&ggr;–Mediated Allograft Rejection Exacerbates Cardiovascular Disease of Hyperlipidemic Murine Transplant Recipients. Circulation Research 2015, 117: 943-955. PMID: 26399469, PMCID: PMC4636943, DOI: 10.1161/circresaha.115.306932.Peer-Reviewed Original ResearchMeSH KeywordsAllograftsAnimalsAortic DiseasesApolipoproteins EAtherosclerosisCardiomyopathiesCardiovascular DiseasesDisease Models, AnimalFemaleGraft RejectionHeart TransplantationHemodynamicsHistocompatibility Antigens Class IIHyperlipidemiasInflammation MediatorsInterferon-gammaLymphocyte ActivationMaleMice, Inbred BALB CMice, Inbred C57BLMice, KnockoutSignal TransductionTh1 CellsVentricular Dysfunction, LeftVentricular Function, LeftConceptsOrgan transplant recipientsCardiovascular diseaseTransplant recipientsEarly-onset cardiovascular diseaseEnd-stage organ failureNative coronary arteriesTh1-type cytokinesT helper cellsHost diseaseAlloimmune responseGraft rejectionAortic stiffeningOrgan failureVentricular dilatationAllogeneic graftsCardiovascular dysfunctionCoronary arteryAortic complianceRisk factorsEffective therapyCardiac contractilityMurine modelAnimal modelsSerological neutralizationImmune systemMultimodality and Molecular Imaging of Matrix Metalloproteinase Activation in Calcific Aortic Valve Disease
Jung JJ, Razavian M, Challa AA, Nie L, Golestani R, Zhang J, Ye Y, Russell KS, Robinson SP, Heistad DD, Sadeghi MM. Multimodality and Molecular Imaging of Matrix Metalloproteinase Activation in Calcific Aortic Valve Disease. Journal Of Nuclear Medicine 2015, 56: 933-938. PMID: 25908827, PMCID: PMC4454445, DOI: 10.2967/jnumed.114.152355.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAortic ValveAortic Valve StenosisApolipoproteins EBicuspid Aortic Valve DiseaseCalcinosisDiet, High-FatEchocardiographyHeart Defects, CongenitalHeart Valve DiseasesHumansMatrix MetalloproteinasesMiceMice, TransgenicMolecular ImagingMultimodal ImagingTechnetiumTomography, Emission-Computed, Single-PhotonTomography, X-Ray ComputedConceptsCalcific aortic valve diseaseAortic valve diseaseMatrix metalloproteinasesWestern dietValve diseaseValvular inflammationMMP activityDevelopment of CAVDMedical therapeutic interventionsAortic valve areaSPECT/CT imagesWild-type miceMatrix metalloproteinase activationAortic stenosisMolecular imagingValvular calcificationControl miceCD68 expressionValve areaWD miceDeficient miceCommon causeApolipoprotein ECD68 stainingMurine model
2014
Imaging Vessel Wall Biology to Predict Outcome in Abdominal Aortic Aneurysm
Golestani R, Razavian M, Nie L, Zhang J, Jung JJ, Ye Y, de Roo M, Hilgerink K, Liu C, Robinson SP, Sadeghi MM. Imaging Vessel Wall Biology to Predict Outcome in Abdominal Aortic Aneurysm. Circulation Cardiovascular Imaging 2014, 8: &na;. PMID: 25550400, PMCID: PMC4284949, DOI: 10.1161/circimaging.114.002471.Peer-Reviewed Original ResearchMeSH KeywordsAngiotensin IIAnimalsAntigens, CDAntigens, Differentiation, MyelomonocyticAorta, AbdominalAortic Aneurysm, AbdominalAortic RuptureAortographyBiomarkersDisease Models, AnimalDisease ProgressionEnzyme ActivationFeasibility StudiesMaleMatrix MetalloproteinasesMice, Inbred C57BLMice, TransgenicMolecular ImagingMultimodal ImagingPredictive Value of TestsRadiopharmaceuticalsRisk AssessmentRisk FactorsTime FactorsTomography, Emission-Computed, Single-PhotonTomography, X-Ray ComputedConceptsMicro-single photon emissionAngiotensin IIMatrix metalloproteinasesAortic diameterSuprarenal aortaCD68 expressionMMP activityPotential of MMPSaline-infused miceVessel wall inflammationAbdominal aortic aneurysmPrediction of outcomePhoton emissionRupture riskMurine AAAsAortic expansionRisk stratificationWall inflammationAortic aneurysmSpontaneous ruptureSmall aneurysmsMouse modelControl animalsTracer uptakeAbdominal aortic aneurysm (AAA) rupture risk
2013
Lipid lowering and imaging protease activation in atherosclerosis
Razavian M, Nie L, Challa A, Zhang J, Golestani R, Jung JJ, Robinson S, Sadeghi MM. Lipid lowering and imaging protease activation in atherosclerosis. Journal Of Nuclear Cardiology 2013, 21: 319-328. PMID: 24368425, PMCID: PMC3991560, DOI: 10.1007/s12350-013-9843-7.Peer-Reviewed Original ResearchConceptsHigh-fat dietLipid-lowering interventionsHFD groupPlaque inflammationAtherosclerotic miceMicroSPECT/CT imagingTotal blood cholesterolModern therapeutic approachesSmooth muscle αMMP tracerFat dietBlood cholesterolPlaque biologyTherapeutic approachesTracer uptakeMatrix metalloproteinaseTherapeutic interventionsAtherosclerosisActin expressionCT imagingMuscle αWeeksFenofibrateMiceInterventionTransmembrane protein ESDN promotes endothelial VEGF signaling and regulates angiogenesis
Nie L, Guo X, Esmailzadeh L, Zhang J, Asadi A, Collinge M, Li X, Kim JD, Woolls M, Jin SW, Dubrac A, Eichmann A, Simons M, Bender JR, Sadeghi MM. Transmembrane protein ESDN promotes endothelial VEGF signaling and regulates angiogenesis. Journal Of Clinical Investigation 2013, 123: 5082-5097. PMID: 24177422, PMCID: PMC3859420, DOI: 10.1172/jci67752.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigens, CDBlood VesselsCadherinsCells, CulturedEar, ExternalEndothelium, VascularHindlimbHuman Umbilical Vein Endothelial CellsHumansIschemiaMembrane ProteinsMiceMice, Inbred C57BLMice, KnockoutNeovascularization, PhysiologicNeuropilinsProtein Tyrosine Phosphatase, Non-Receptor Type 1Protein Tyrosine Phosphatase, Non-Receptor Type 2Retinal VesselsRNA InterferenceRNA, Small InterferingVascular Endothelial Growth Factor AVascular Endothelial Growth Factor Receptor-2ZebrafishZebrafish ProteinsConceptsSmooth muscle cell-derived neuropilin-like proteinAberrant blood vessel formationNormal vascular developmentProtein tyrosineTC-PTPTransmembrane proteinTherapeutic targetBlood vessel formationVEGF responseNegative regulatorDevelopmental angiogenesisVEGFR-2Vascular developmentAttractive therapeutic targetESDNAngiogenesis regulationVE-cadherinVessel formationEC proliferationComplex formationRegulatorProteinNeuropilin expressionVEGF receptorsEndothelial VEGF
2012
Molecular Imaging of Vascular Endothelial Growth Factor Receptors in Graft Arteriosclerosis
Zhang J, Razavian M, Tavakoli S, Nie L, Tellides G, Backer JM, Backer MV, Bender JR, Sadeghi MM. Molecular Imaging of Vascular Endothelial Growth Factor Receptors in Graft Arteriosclerosis. Arteriosclerosis Thrombosis And Vascular Biology 2012, 32: 1849-1855. PMID: 22723442, PMCID: PMC3401339, DOI: 10.1161/atvbaha.112.252510.Peer-Reviewed Original ResearchConceptsGraft arteriosclerosisArtery graftVascular remodelingAllogeneic human peripheral blood mononuclear cellsHuman coronary artery segmentsHuman peripheral blood mononuclear cellsPeripheral blood mononuclear cellsSevere combined immunodeficiency miceVEGF receptorsVascular endothelial growth factor receptorLate organ failureHuman coronary artery graftsSolid organ transplantationCoronary artery graftsEndothelial growth factor receptorBlood mononuclear cellsCoronary artery segmentsCombined immunodeficiency miceReceptor 2 expressionVEGF receptor-2 expressionMolecular imagingSignificant neointima formationVascular endothelial growth factor signalingVEGF receptor 1Growth factor receptor
2010
Molecular Imaging of Matrix Metalloproteinase Activation to Predict Murine Aneurysm Expansion In Vivo
Razavian M, Zhang J, Nie L, Tavakoli S, Razavian N, Dobrucki LW, Sinusas AJ, Edwards DS, Azure M, Sadeghi MM. Molecular Imaging of Matrix Metalloproteinase Activation to Predict Murine Aneurysm Expansion In Vivo. Journal Of Nuclear Medicine 2010, 51: 1107-1115. PMID: 20554725, PMCID: PMC2908304, DOI: 10.2967/jnumed.110.075259.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApolipoproteins EArteriovenous FistulaAutoradiographyCarotid ArteriesCatalysisDisease ProgressionEnzyme ActivationImmunohistochemistryIndicators and ReagentsMatrix MetalloproteinasesMiceMice, KnockoutRadiopharmaceuticalsReverse Transcriptase Polymerase Chain ReactionSubstrate SpecificityTomography, Emission-ComputedTomography, Emission-Computed, Single-PhotonConceptsMatrix metalloproteinase activationMMP activationAneurysm inductionMetalloproteinase activationSPECT/CTCurrent imaging modalitiesPathogenesis of aneurysmsSpecific MMP inhibitorsGroups of animalsMMP tracerMolecular imagingArterial aneurysmsAneurysm expansionFocal uptakeDeficient miceCarotid aneurysmsCarotid arteryApolipoprotein ETracer uptakeAneurysmsMajor causeMMP inhibitorsVessel areaImaging modalitiesWkVEGF Blockade Inhibits Lymphocyte Recruitment and Ameliorates Immune-Mediated Vascular Remodeling
Zhang J, Silva T, Yarovinsky T, Manes TD, Tavakoli S, Nie L, Tellides G, Pober JS, Bender JR, Sadeghi MM. VEGF Blockade Inhibits Lymphocyte Recruitment and Ameliorates Immune-Mediated Vascular Remodeling. Circulation Research 2010, 107: 408-417. PMID: 20538685, PMCID: PMC2929975, DOI: 10.1161/circresaha.109.210963.Peer-Reviewed Original ResearchMeSH KeywordsAngiogenesis InhibitorsAnimalsAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedArteriesBevacizumabCD3 ComplexCoronary VesselsHumansJurkat CellsLymphocytesMiceMice, SCIDReceptors, Vascular Endothelial Growth FactorT-LymphocytesTransplantation, HeterologousVascular Endothelial Growth Factor AConceptsVascular endothelial growth factorRole of VEGFAdhesion molecule-1T cellsVascular remodelingHuman T cellsMolecule-1Recombinant intercellular adhesion molecule-1Human arteriesVascular cell adhesion molecule-1Intercellular adhesion molecule-1Cell adhesion molecule-1Inhibition of VEGFT cell accumulationPeripheral blood mononuclearEffects of VEGFSubpopulation of CD3Novel therapeutic approachesEndothelial growth factorT cell activationT cell linesVEGFR-1 mRNAT cell captureLymphocyte recruitmentBlood mononuclear
2008
Molecular Imaging of Activated Matrix Metalloproteinases in Vascular Remodeling
Zhang J, Nie L, Razavian M, Ahmed M, Dobrucki LW, Asadi A, Edwards DS, Azure M, Sinusas AJ, Sadeghi MM. Molecular Imaging of Activated Matrix Metalloproteinases in Vascular Remodeling. Circulation 2008, 118: 1953-1960. PMID: 18936327, PMCID: PMC2637824, DOI: 10.1161/circulationaha.108.789743.Peer-Reviewed Original ResearchMeSH KeywordsAngioplasty, BalloonAnimalsApolipoproteins EAutoradiographyCarotid Artery InjuriesCarotid Artery, CommonDisease Models, AnimalFemaleFluorescent Antibody TechniqueIndiumMatrix Metalloproteinase 2Matrix Metalloproteinase 9MiceMice, Mutant StrainsSensitivity and SpecificityTomography, Emission-Computed, Single-PhotonConceptsVascular remodelingCarotid arteryCommon carotid artery injuryInjury-induced vascular remodelingCarotid wire injuryCarotid artery injuryMicroSPECT/CTMatrix metalloproteinase activationVessel wall areaArtery injuryCarotid injurySham surgerySignificant hyperplasiaContralateral arteryWire injuryFocal uptakeHyperplastic processesMicroSPECT imagingQuantitative autoradiographyTracer uptakeMetalloproteinase activationMMP activityArteryInjuryMatrix metalloproteinases