2019
Application of Hybrid Matrix Metalloproteinase-Targeted and Dynamic 201Tl Single-Photon Emission Computed Tomography/Computed Tomography Imaging for Evaluation of Early Post-Myocardial Infarction Remodeling
Thorn SL, Barlow SC, Feher A, Stacy MR, Doviak H, Jacobs J, Zellars K, Renaud JM, Klein R, deKemp RA, Khakoo AY, Lee T, Spinale FG, Sinusas AJ. Application of Hybrid Matrix Metalloproteinase-Targeted and Dynamic 201Tl Single-Photon Emission Computed Tomography/Computed Tomography Imaging for Evaluation of Early Post-Myocardial Infarction Remodeling. Circulation Cardiovascular Imaging 2019, 12: e009055. PMID: 31707811, PMCID: PMC7250243, DOI: 10.1161/circimaging.119.009055.Peer-Reviewed Original ResearchConceptsMyocardial blood flowSingle photon emissionBlood flowRecombinant TIMP-3Matrix metalloproteinasesR injuryTomography/Intracoronary deliveryMMP activationPost-myocardial infarction remodelingSubsequent left ventricular remodelingHybrid single-photon emissionDual-isotope single-photon emissionTomography/Computed Tomography ImagingLeft ventricular remodelingIschemia/reperfusionPost-MI remodelingPost-myocardial infarctionComputed tomography (CT) imagingIntracoronary infusionVentricular functionSaline groupVentricular remodelingNoninvasive evaluationTreatment groups
2016
Effects of an endothelin receptor antagonist, Macitentan, on right ventricular substrate utilization and function in a Sugen 5416/hypoxia rat model of severe pulmonary arterial hypertension
Drozd K, Ahmadi A, Deng Y, Jiang B, Petryk J, Thorn S, Stewart D, Beanlands R, deKemp RA, DaSilva JN, Mielniczuk LM. Effects of an endothelin receptor antagonist, Macitentan, on right ventricular substrate utilization and function in a Sugen 5416/hypoxia rat model of severe pulmonary arterial hypertension. Journal Of Nuclear Cardiology 2016, 24: 1979-1989. PMID: 27688036, DOI: 10.1007/s12350-016-0663-4.Peer-Reviewed Original ResearchConceptsPulmonary arterial hypertensionRV FDG uptakePositron emission tomographyFDG uptakeFTHA uptakeFatty acid metabolismArterial hypertensionRV functionMacitentan treatmentRat modelSevere pulmonary arterial hypertensionWeek 5Effect of macitentanImproved RV functionRV systolic pressureWeeks of hypoxiaEndothelin receptor antagonistsRV ejection fractionHypoxia rat modelSingle subcutaneous injectionMale Sprague-DawleyAcid metabolismMyocardial energy metabolismPAH severitySugen 5416
2015
ENPP1-Fc prevents mortality and vascular calcifications in rodent model of generalized arterial calcification of infancy
Albright RA, Stabach P, Cao W, Kavanagh D, Mullen I, Braddock AA, Covo MS, Tehan M, Yang G, Cheng Z, Bouchard K, Yu ZX, Thorn S, Wang X, Folta-Stogniew EJ, Negrete A, Sinusas AJ, Shiloach J, Zubal G, Madri JA, De La Cruz EM, Braddock DT. ENPP1-Fc prevents mortality and vascular calcifications in rodent model of generalized arterial calcification of infancy. Nature Communications 2015, 6: 10006. PMID: 26624227, PMCID: PMC4686714, DOI: 10.1038/ncomms10006.Peer-Reviewed Original ResearchConceptsChronic kidney diseaseVascular calcificationArterial calcificationOrphan diseaseCommon diseaseSequelae of diseaseEctopic vascular calcificationInternal elastic laminaPrevent mortalityRenal failureCardiac failureKidney diseaseSubcutaneous administrationRodent modelsAnimal modelsEctopic calcificationVascular wallLarge arteriesElastic laminaDiseaseCalcificationCalciphylaxisDecreased concentrationSclerosisArteryCardiac β-Adrenoceptor Expression Is Reduced in Zucker Diabetic Fatty Rats as Type-2 Diabetes Progresses
Haley JM, Thackeray JT, Thorn SL, DaSilva JN. Cardiac β-Adrenoceptor Expression Is Reduced in Zucker Diabetic Fatty Rats as Type-2 Diabetes Progresses. PLOS ONE 2015, 10: e0127581. PMID: 25996498, PMCID: PMC4440709, DOI: 10.1371/journal.pone.0127581.Peer-Reviewed Original ResearchConceptsZucker diabetic fattyΒ-AR expressionWeeks of ageΒ2-AR expressionΒ-adrenoceptor expressionZDF ratsΒ3-ARFree fatty acidsType 2 diabetic Zucker diabetic fattyType 2 diabetic ZDF ratsDiabetic Zucker diabetic fattyZucker diabetic fatty ratsType 2 diabetes progressesType 2 diabetes modelWestern blottingCardiac β-ARΒ1-AR expressionDiabetic fatty ratsDiabetic ZDF ratsType 2 diabetesModel of hyperglycemiaΒ-AR subtypesBrown adipose tissueDiastolic functionSystolic functionCreation of clinically relevant model of chronic heart failure: Application of multi-modality imaging to define physiology
Thorn S, Sinusas AJ. Creation of clinically relevant model of chronic heart failure: Application of multi-modality imaging to define physiology. Journal Of Nuclear Cardiology 2015, 22: 673-676. PMID: 25698482, DOI: 10.1007/s12350-015-0081-z.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsDisease Models, AnimalHeart FailureMaleOxygen ConsumptionVentricular Dysfunction, LeftVentricular RemodelingPET imaging of a collagen matrix reveals its effective injection and targeted retention in a mouse model of myocardial infarction
Ahmadi A, Thorn SL, Alarcon EI, Kordos M, Padavan DT, Hadizad T, Cron GO, Beanlands RS, DaSilva JN, Ruel M, deKemp RA, Suuronen EJ. PET imaging of a collagen matrix reveals its effective injection and targeted retention in a mouse model of myocardial infarction. Biomaterials 2015, 49: 18-26. PMID: 25725551, DOI: 10.1016/j.biomaterials.2015.01.016.Peer-Reviewed Original ResearchConceptsMyocardial infarctionPositron emission tomographyPET imagingMouse modelNon-invasive PET imagingCardiac regeneration therapyIschemic territoryPET resultsInfarcted myocardiumEmission tomographyCollagen matrixMyocardial injectionEarly retentionPromising modalityRegeneration therapyInfarctionLabeling efficiencyMyocardiumFluorescence imagingImagingBiodistributionInjectionQdot labelingEx
2013
Preclinical Evaluation of Biopolymer-Delivered Circulating Angiogenic Cells in a Swine Model of Hibernating Myocardium
Giordano C, Thorn SL, Renaud JM, Al-Atassi T, Boodhwani M, Klein R, Kuraitis D, Dwivedi G, Zhang P, DaSilva JN, Ascah KJ, deKemp RA, Suuronen EJ, Beanlands RS, Ruel M. Preclinical Evaluation of Biopolymer-Delivered Circulating Angiogenic Cells in a Swine Model of Hibernating Myocardium. Circulation Cardiovascular Imaging 2013, 6: 982-991. PMID: 24089461, DOI: 10.1161/circimaging.113.000185.Peer-Reviewed Original ResearchConceptsMyocardial blood flowHibernating myocardiumAngiogenic cellsBlood flowSwine modelAdvanced coronary artery diseaseLeft circumflex artery territoryRelevant swine modelCoronary artery diseaseCircumflex artery territoryLeft circumflex arteryCirculating Angiogenic CellsWall motion abnormalitiesMyocardial flow reserveArtery territoryUnderwent placementArtery diseaseEjection fractionCircumflex arteryCell-based therapiesRevascularization approachTomography perfusionMyocardial hibernationAmeroid constrictorPreclinical swine model
2009
Distinct Early Signaling Events Resulting From the Expression of the PRKAG2 R302Q Mutant of AMPK Contribute to Increased Myocardial Glycogen
Folmes KD, Chan AY, Koonen DP, Pulinilkunnil TC, Baczkó I, Hunter BE, Thorn S, Allard MF, Roberts R, Gollob MH, Light PE, Dyck JR. Distinct Early Signaling Events Resulting From the Expression of the PRKAG2 R302Q Mutant of AMPK Contribute to Increased Myocardial Glycogen. Circulation Genomic And Precision Medicine 2009, 2: 457-466. PMID: 20031621, DOI: 10.1161/circgenetics.108.834564.Peer-Reviewed Original ResearchConceptsTransgenic miceR302Q mutationGlycogen contentAcute expressionCardiomyocyte-restricted expressionAMPK activationTransgenic adult miceNeonatal rat cardiomyocytesChronic modelWolff-ParkinsonGlycogen synthase activityWhite syndromeCardiac hypertrophyAdult miceGlycogen storage cardiomyopathyMyocardial glycogenDirect effectCompensatory alterationsRat cardiomyocytesFamilial formsMiceEarly signaling eventCardiomyopathyAMPK activityHeart