2024
Heterogeneous gene expression during early arteriovenous fistula remodeling suggests that downregulation of metabolism predicts adaptive venous remodeling
Ohashi Y, Protack C, Aoyagi Y, Gonzalez L, Thaxton C, Zhang W, Kano M, Bai H, Yatsula B, Alves R, Hoshina K, Schneider E, Long X, Perry R, Dardik A. Heterogeneous gene expression during early arteriovenous fistula remodeling suggests that downregulation of metabolism predicts adaptive venous remodeling. Scientific Reports 2024, 14: 13287. PMID: 38858395, PMCID: PMC11164895, DOI: 10.1038/s41598-024-64075-8.Peer-Reviewed Original ResearchConceptsGene expression patternsArteriovenous fistula groupArteriovenous fistulaExpression patternsHeterogeneous gene expressionGene expression changesOutcomes of arteriovenous fistulaVenous remodelingArteriovenous fistula maturationPostoperative day 7Reduce patient morbidityRNA sequencingUpregulation of metabolismBioinformatics analysisGene expressionDownregulation of metabolismMetabolic pathwaysExpression changesGenesAVF maturationAVF remodelingFistula creationC57BL/6 miceClinical outcomesPatient morbidityAbstract 3092: Smooth Muscle Cell Tgf-β Receptor Knockout Improves Arteriovenous Fistula Maturation Via Attenuation Of Autophagy
Zhang W, Bai H, Gonzalez L, Li Z, Ohashi Y, Thaxton C, aoyagi Y, Yatsula B, Kano M, Xie Y, Cai Y, Chang S, Dardik A. Abstract 3092: Smooth Muscle Cell Tgf-β Receptor Knockout Improves Arteriovenous Fistula Maturation Via Attenuation Of Autophagy. Arteriosclerosis Thrombosis And Vascular Biology 2024, 44 DOI: 10.1161/atvb.44.suppl_1.3092.Peer-Reviewed Original ResearchChronic kidney diseaseSmooth muscle cellsEnd-stage renal diseaseArteriovenous fistulaHuman arteriovenous fistulaeControl miceC57BL/6J miceCKD showRate of primary failureBasilic vein transpositionTGF-bModel of arteriovenous fistulaTGF-b1 expressionArteriovenous fistula failureArteriovenous fistula maturationWild type miceControl C57BL/6J miceIncreased markers of autophagyTGF-b signalingVein transpositionAortocaval fistulaAVF maturationReceptor knockoutMT/mG miceSham nephrectomyAbstract 3143: Computational Modeling Of Non-homeostatic Changes Within An Arterial-venous Fistula System Using In Vivo Validation To Understand Mechanical Causes Of Fistula Failure
Varsanik M, Thaxton C, Li W, Dardik A, Pocivavsek L. Abstract 3143: Computational Modeling Of Non-homeostatic Changes Within An Arterial-venous Fistula System Using In Vivo Validation To Understand Mechanical Causes Of Fistula Failure. Arteriosclerosis Thrombosis And Vascular Biology 2024, 44 DOI: 10.1161/atvb.44.suppl_1.3143.Peer-Reviewed Original ResearchArteriovenous fistulaFistula failureNeointimal hyperplasiaLong-term dialysis accessFistula systemClinical problemEnd stage renal patientsPresence of arteriovenous fistulaStatic pressureArteriovenous fistula failureCT angiography scansMurine AVF modelStenotic veinsVenous stenosisAngiography scansStatic pressure peakDialysis accessFistulaAnesthetized miceRenal patientsVenous velocityFistula modelIn vivo validationHigh static pressureNative veinsDisturbed flow in the juxta-anastomotic area of an arteriovenous fistula correlates with endothelial loss, acute thrombus formation, and neointimal hyperplasia
Bai H, Varsanik M, Thaxton C, Ohashi Y, Gonzalez L, Zhang W, Aoyagi Y, Kano M, Yatsula B, Li Z, Pocivavsek L, Dardik A. Disturbed flow in the juxta-anastomotic area of an arteriovenous fistula correlates with endothelial loss, acute thrombus formation, and neointimal hyperplasia. AJP Heart And Circulatory Physiology 2024, 326: h1446-h1461. PMID: 38578237, DOI: 10.1152/ajpheart.00054.2024.Peer-Reviewed Original ResearchConceptsEndothelial cell lossOutflow veinChronic kidney diseaseJuxta-anastomotic areaMouse AVF modelNeointimal hyperplasiaThrombus formationAcute thrombus formationCell lossHuman AVF maturationGene OntologyAVF maturationAVF patencyEarly thrombus formationArteriovenous fistulaC57BL/6 miceClinical failureWistar ratsEndothelial lossKidney diseaseImmune responseEndothelial cellsHyperplasiaMiceAVFA central arteriovenous fistula reduces systemic hypertension in a mouse model
Brahmandam A, Alves R, Liu H, Gonzalez L, Aoyagi Y, Ohashi Y, Langford J, Thaxton C, Taniguchi R, Zhang W, Bai H, Yatsula B, Dardik A. A central arteriovenous fistula reduces systemic hypertension in a mouse model. JVS Vascular Science 2024, 5: 100191. PMID: 38510938, PMCID: PMC10951512, DOI: 10.1016/j.jvssci.2024.100191.Peer-Reviewed Original ResearchCentral arteriovenous fistulaArteriovenous fistulaBlood pressureAng IISystemic hypertensionVenous remodelingArteriovenous fistula creationPCNA-positive cellsPostoperative day 7Systemic blood pressureSystolic blood pressureCollagen I depositionNormotensive miceRefractory hypertensionHypertensive miceC57BL6/J miceHypertensive environmentTreated patientsAngiotensin IIMouse modelDay 7HypertensionMiceFistulaAng
2023
Sex hormones impact early maturation and immune response in the arteriovenous fistula mouse model
Satam K, Ohashi Y, Thaxton C, Gonzalez L, Setia O, Bai H, Aoyagi Y, Xie Y, Zhang W, Yatsula B, Martin K, Cai Y, Dardik A. Sex hormones impact early maturation and immune response in the arteriovenous fistula mouse model. AJP Heart And Circulatory Physiology 2023, 325: h77-h88. PMID: 37145957, PMCID: PMC10243550, DOI: 10.1152/ajpheart.00049.2023.Peer-Reviewed Original ResearchConceptsIntact female miceAVF maturationSex hormonesT cellsFemale miceArteriovenous fistulaMale miceMouse modelHigher IL-10Arteriovenous fistula creationImmune cell recruitmentSex-specific therapiesHormone receptor signalingSex differencesHuman AVF maturationAVF surgeryMale patientsClinical outcomesFemale patientsFistula maturationIL-10C57BL/6 miceInferior outcomesVenous adaptationFistula creationArterial Diameter and Percentage of Monocytes are Sex-Dependent Predictors of Early Arteriovenous Fistula Maturation
Satam K, Setia O, Moore M, Schneider E, Chaar C, Dardik A. Arterial Diameter and Percentage of Monocytes are Sex-Dependent Predictors of Early Arteriovenous Fistula Maturation. Annals Of Vascular Surgery 2023, 93: 128-136. PMID: 36812979, PMCID: PMC10277224, DOI: 10.1016/j.avsg.2023.01.052.Peer-Reviewed Original ResearchConceptsFistula maturationArteriovenous fistula maturationArterial diameterArteriovenous fistulaFistula creationBrachial artery diameterPrimary arteriovenous fistulaPercentage of neutrophilsPeak systolic velocityPercentage of monocytesBrachial-cephalic fistulaElectronic medical recordsSex differencesFistula utilizationInferior patencyPostoperative ultrasoundUnassisted maturationYears postprocedureSingle centerArtery diameterArterial inflowArterial velocitySystolic velocityMedical recordsMonocyte percentage
2022
Endothelial Cell TGF-β (Transforming Growth Factor-Beta) Signaling Regulates Venous Adaptive Remodeling to Improve Arteriovenous Fistula Patency
Taniguchi R, Ohashi Y, Lee JS, Hu H, Gonzalez L, Zhang W, Langford J, Matsubara Y, Yatsula B, Tellides G, Fahmy TM, Hoshina K, Dardik A. Endothelial Cell TGF-β (Transforming Growth Factor-Beta) Signaling Regulates Venous Adaptive Remodeling to Improve Arteriovenous Fistula Patency. Arteriosclerosis Thrombosis And Vascular Biology 2022, 42: 868-883. PMID: 35510552, PMCID: PMC9233042, DOI: 10.1161/atvbaha.122.317676.Peer-Reviewed Original ResearchConceptsArteriovenous fistulaSMC proliferationAVF patencyCollagen densityMouse aortocaval fistula modelTGF-β receptor IArteriovenous fistula patencyAortocaval fistula modelInhibition of TGFPredetermined time pointsTGF-β inhibitionTGF-β signalingTGF-β receptorDisruption of TGFFistula patencyAVF failureWall thicknessVascular accessVenous remodelingSuccessful hemodialysisDoppler ultrasoundFistula modelReceptor IPatencyTGF
2021
PD-L1 (Programmed Death Ligand 1) Regulates T-Cell Differentiation to Control Adaptive Venous Remodeling
Matsubara Y, Gonzalez L, Kiwan G, Liu J, Langford J, Gao M, Gao X, Taniguchi R, Yatsula B, Furuyama T, Matsumoto T, Komori K, Mori M, Dardik A. PD-L1 (Programmed Death Ligand 1) Regulates T-Cell Differentiation to Control Adaptive Venous Remodeling. Arteriosclerosis Thrombosis And Vascular Biology 2021, 41: 2909-2922. PMID: 34670406, PMCID: PMC8664128, DOI: 10.1161/atvbaha.121.316380.Peer-Reviewed Original ResearchConceptsPD-L1AVF maturationPD-L1 activityVenous remodelingT cellsL1 antibodyArteriovenous fistulaNude miceMouse aortocaval fistula modelEnd-stage renal diseaseT helper type 2 cellsT helper type 1 (Th1) cellsPrimary success rateSmooth muscle cell proliferationRegulatory T cellsT cell activityT-cell transferAortocaval fistula modelPreferred vascular accessVascular wall thickeningM1-type macrophagesM2-type macrophagesPotential therapeutic targetMuscle cell proliferationType 1 cellsInhibition of T-Cells by Cyclosporine A Reduces Macrophage Accumulation to Regulate Venous Adaptive Remodeling and Increase Arteriovenous Fistula Maturation
Matsubara Y, Kiwan G, Liu J, Gonzalez L, Langford J, Gao M, Gao X, Taniguchi R, Yatsula B, Furuyama T, Matsumoto T, Komori K, Dardik A. Inhibition of T-Cells by Cyclosporine A Reduces Macrophage Accumulation to Regulate Venous Adaptive Remodeling and Increase Arteriovenous Fistula Maturation. Arteriosclerosis Thrombosis And Vascular Biology 2021, 41: e160-e174. PMID: 33472405, PMCID: PMC7904667, DOI: 10.1161/atvbaha.120.315875.Peer-Reviewed Original ResearchConceptsVascular wall thickeningT helper type 1 (Th1) cellsSuccessful AVF maturationAVF maturationRegulatory T cellsMacrophage accumulationT cellsType 1 cellsArteriovenous fistulaVenous remodelingWall thickeningMouse aortocaval fistula modelT helper type 2T helper type 2 cellsAdaptive remodelingM2 macrophage accumulationPrimary success rateAortocaval fistula modelArteriovenous fistula maturationPreferred vascular accessAnti-inflammatory macrophagesT cell functionWild-type miceEffect of CsAType 2 cells
2020
Artery to vein configuration of arteriovenous fistula improves hemodynamics to increase maturation and patency
Bai H, Sadaghianloo N, Gorecka J, Liu S, Ono S, Ramachandra AB, Bonnet S, Mazure NM, Declemy S, Humphrey JD, Dardik A. Artery to vein configuration of arteriovenous fistula improves hemodynamics to increase maturation and patency. Science Translational Medicine 2020, 12 PMID: 32817365, PMCID: PMC7705473, DOI: 10.1126/scitranslmed.aax7613.Peer-Reviewed Original ResearchConceptsArteriovenous fistulaHemodialysis accessNeointimal hyperplasiaEndothelial nitric oxide synthaseDurable surgical optionUremic male ratsRadial-cephalic arteriovenous fistulaKruppel-like factor 2Nitric oxide synthasePeak systolic velocityLong-term patencyReintervention rateSecondary patencyImproved hemodynamicsFemale patientsReimplantation techniqueSurgical optionsSystolic velocityMale ratsOxide synthaseFistula modelPatencyHemodynamicsDifferent hemodynamicsFemale animalsTGFβ (Transforming Growth Factor-Beta)–Activated Kinase 1 Regulates Arteriovenous Fistula Maturation
Hu H, Lee SR, Bai H, Guo J, Hashimoto T, Isaji T, Guo X, Wang T, Wolf K, Liu S, Ono S, Yatsula B, Dardik A. TGFβ (Transforming Growth Factor-Beta)–Activated Kinase 1 Regulates Arteriovenous Fistula Maturation. Arteriosclerosis Thrombosis And Vascular Biology 2020, 40: e203-e213. PMID: 32460580, PMCID: PMC7316601, DOI: 10.1161/atvbaha.119.313848.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAortaArteriovenous Shunt, SurgicalCells, CulturedCollagen Type IEndothelial CellsFibronectinsHumansJNK Mitogen-Activated Protein KinasesMaleMAP Kinase Kinase KinasesMechanotransduction, CellularMice, Inbred C57BLP38 Mitogen-Activated Protein KinasesPhosphorylationStress, MechanicalVascular PatencyVascular RemodelingVena Cava, InferiorConceptsArteriovenous fistulaAVF maturationNoncanonical TGFβSuccessful AVF maturationArteriovenous fistula maturationNovel therapeutic approachesTAK1 functionsFistula maturationHemodialysis accessDeposition of ECMLuminal diameterMouse endothelial cellsMaturation failureTherapeutic approachesLumen dilationControl veinsWall thickeningAVF modelOptimal conduitArterial magnitudesEndothelial cellsTAK1 phosphorylationCollagen 1Growth factorLaminar shear stressAltered hemodynamics during arteriovenous fistula remodeling leads to reduced fistula patency in female mice
Kudze T, Ono S, Fereydooni A, Gonzalez L, Isaji T, Hu H, Yatsula B, Taniguchi R, Koizumi J, Nishibe T, Dardik A. Altered hemodynamics during arteriovenous fistula remodeling leads to reduced fistula patency in female mice. JVS Vascular Science 2020, 1: 42-56. PMID: 32754721, PMCID: PMC7402599, DOI: 10.1016/j.jvssci.2020.03.001.Peer-Reviewed Original ResearchInfrarenal inferior vena cavaArteriovenous fistulaFemale miceMale miceHuman AVF maturationAVF maturationAVF patencyVascular cell adhesion molecule-1Superior long-term outcomesEndothelial nitric oxide synthaseCell adhesion molecule-1Male C57BL/6 miceLong-term outcomesInferior vena cavaNitric oxide synthaseAdhesion molecule-1Krüppel-like factor 2Significant differencesSex-specific differential expressionMessenger RNAAVF remodelingAVF utilizationFistula utilizationAortocaval fistulaFistula patency
1991
Infrapopliteal prosthetic graft patency by use of the distal adjunctive arteriovenous fistula
Dardik H, Berry S, Dardik A, Wolodiger F, Pecoraro J, Ibrahim I, Kahn M, Sussman B. Infrapopliteal prosthetic graft patency by use of the distal adjunctive arteriovenous fistula. Journal Of Vascular Surgery 1991, 13: 685-691. PMID: 2027208, DOI: 10.1016/0741-5214(91)90354-w.Peer-Reviewed Original ResearchConceptsDistal arteriovenous fistulaArteriovenous fistulaPatent fistulaAdjunctive arteriovenous fistulaProsthetic graft patencyCumulative patency rateVascular reconstructive proceduresPeak systolic velocityCrural reconstructionsPostoperative arteriographyDistal anastomosisFistula patencyGraft patencyPatent graftsDuplex ultrasonographyProsthetic graftsAutologous veinDistal arteriesGraft flowGraft surveillancePatency ratesSystolic velocityDuplex sonographyTherapeutic resultsDistal vessels
1988
A decade of experience with the glutaraldehyde-tanned human umbilical cord vein graft for revascularization of the lower limb
Dardik H, Miller N, Dardik A, Ibrahim I, Sussman B, Berry S, Wolodiger F, Kahn M, Dardik I. A decade of experience with the glutaraldehyde-tanned human umbilical cord vein graft for revascularization of the lower limb. Journal Of Vascular Surgery 1988, 7: 336-346. DOI: 10.1016/0741-5214(88)90153-x.Peer-Reviewed Original ResearchConceptsGraft failureHuman umbilical cord vein graftAdjunctive distal arteriovenous fistulasCumulative graft patency rateSuccessful graft replacementGraft patency rateLower limb bypassOverall clinical impactDistal arteriovenous fistulaLimited life expectancyOverall infection rateSitu saphenous veinKnee poplitealPopliteal reconstructionAnastomotic aneurysmsFoot gangreneGraft aneurysmGraft thrombosisGraft replacementDistal anastomosisPeroneal bypassVein graftsGraft dilationPatency ratesArteriovenous fistulaA decade of experience with the glutaraldehyde-tanned human umbilical cord vein graft for revascularization of the lower limb.
Dardik H, Miller N, Dardik A, Ibrahim I, Sussman B, Berry S, Wolodiger F, Kahn M, Dardik I. A decade of experience with the glutaraldehyde-tanned human umbilical cord vein graft for revascularization of the lower limb. Journal Of Vascular Surgery 1988, 7: 336-46. PMID: 3123718, DOI: 10.1067/mva.1988.avs0070336.Peer-Reviewed Original ResearchConceptsGraft failureHuman umbilical cord vein graftAdjunctive distal arteriovenous fistulasCumulative graft patency rateSuccessful graft replacementGraft patency rateLower limb bypassOverall clinical impactDistal arteriovenous fistulaLimited life expectancyOverall infection rateSitu saphenous veinKnee poplitealPopliteal reconstructionAnastomotic aneurysmsFoot gangreneGraft aneurysmGraft thrombosisGraft dilatationGraft replacementDistal anastomosisPeroneal bypassVein graftsPatency ratesArteriovenous fistula