2018
Dipeptidyl Peptidase‐4 Inhibition Potentiates Stimulated Growth Hormone Secretion and Vasodilation in Women
Wilson JR, Brown NJ, Nian H, Yu C, Bidlingmaier M, Devin JK. Dipeptidyl Peptidase‐4 Inhibition Potentiates Stimulated Growth Hormone Secretion and Vasodilation in Women. Journal Of The American Heart Association 2018, 7: e008000. PMID: 29478970, PMCID: PMC5866333, DOI: 10.1161/jaha.117.008000.Peer-Reviewed Original ResearchMeSH KeywordsAdministration, OralAdultCross-Over StudiesDipeptidyl Peptidase 4Dipeptidyl-Peptidase IV InhibitorsDouble-Blind MethodFemaleFibrinolysisHuman Growth HormoneHumansInsulin-Like Growth Factor IMaleSecretory PathwaySex FactorsSitagliptin PhosphateTime FactorsTissue Plasminogen ActivatorUp-RegulationVasodilationYoung AdultConceptsFree insulin-like growth factor-1Insulin-like growth factor-1Growth factor-1GH secretionGrowth hormoneGHR blockadeVascular resistanceFactor 1Nitric oxideTissue plasminogen activator activityPeptidase-4 inhibitionImpaired endothelial functionGrowth hormone secretionReceptor-dependent effectsDipeptidyl peptidase-4Study drugEndothelial functionPlasminogen activator activityCrossover studyHormone secretionPeptidase-4VasodilationHealthy adultsGH receptorInhibition potentiates
2017
Angiotensin-converting Enzyme Inhibitor and Other Drug-associated Angioedema
Stone C, Brown NJ. Angiotensin-converting Enzyme Inhibitor and Other Drug-associated Angioedema. Immunology And Allergy Clinics Of North America 2017, 37: 483-495. PMID: 28687104, DOI: 10.1016/j.iac.2017.04.006.Peer-Reviewed Original ResearchConceptsDrug-induced angioedemaEnzyme inhibitorsAngiotensin-converting enzyme inhibitorNon-β-lactam antibioticsNonsteroidal antiinflammatory agentsNonallergic angioedemaSubstance PTherapeutic decisionsAngioedemaAntiinflammatory agentsLactam antibioticsOther DrugΒ-lactam antibioticsDrugsPatientsLeukotrienesBradykininGenetic variantsAntibioticsInhibitorsAngiotensinProstaglandinsAgentsHistamineMainstay
2016
Cardiovascular Disease Risk Factors in Ghana during the Rural-to-Urban Transition: A Cross-Sectional Study
Kodaman N, Aldrich MC, Sobota R, Asselbergs FW, Poku KA, Brown NJ, Moore JH, Williams SM. Cardiovascular Disease Risk Factors in Ghana during the Rural-to-Urban Transition: A Cross-Sectional Study. PLOS ONE 2016, 11: e0162753. PMID: 27732601, PMCID: PMC5061429, DOI: 10.1371/journal.pone.0162753.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overBlood GlucoseBlood PressureBody Mass IndexCardiovascular DiseasesCholesterolCholesterol, HDLCholesterol, LDLCross-Sectional StudiesDiabetes Mellitus, Type 2FemaleGhanaHumansHypertensionMaleMiddle AgedObesityPlasminogen Activator Inhibitor 1PrevalenceRisk FactorsSmokingSurveys and QuestionnairesTissue Plasminogen ActivatorTriglyceridesUrbanizationYoung AdultConceptsCardiovascular disease risk factorsDisease risk factorsRisk factorsUrban residenceWorse cardiovascular risk profileCardiovascular risk profileRelated clinical outcomesPopulation-based surveyCross-sectional studyFibrinolytic markersTotal cholesterolCholesterol profileClinical outcomesLDL cholesterolCardiovascular diseaseBMI adjustmentHigh riskRural participantsRisk profileLarger studyT-PAUrban womenUrban menObesityCholesterol
2011
Epistatic Interactions in Genetic Regulation of t-PA and PAI-1 Levels in a Ghanaian Population
Penrod NM, Poku KA, Vaughn D, Asselbergs FW, Brown NJ, Moore JH, Williams SM. Epistatic Interactions in Genetic Regulation of t-PA and PAI-1 Levels in a Ghanaian Population. PLOS ONE 2011, 6: e16639. PMID: 21304999, PMCID: PMC3031598, DOI: 10.1371/journal.pone.0016639.Peer-Reviewed Original ResearchMeSH KeywordsAnalysis of VarianceEpistasis, GeneticFemaleGene Expression RegulationGhanaHumansMalePlasminogen Activator Inhibitor 1Polymorphism, GeneticSex FactorsTissue Plasminogen ActivatorConceptsEpistatic interactionsPAI-1 levelsRenin-angiotensin systemMultiple genetic effectsPathway-specific genesD polymorphismPAI-1Genetic architectureT-PASingle SNP analysisGenetic regulationCentral genesSpecific genesCardiovascular diseaseFibrinolytic systemSNP analysisGenetic effectsGenesCleavage of angiotensinogenPlasminogen activator inhibitor-1Plasma t-PAT-PA levelsTissue plasminogen activatorActivator inhibitor-1Enzyme cleavage
2009
Letter by Brown and Pretorius Regarding Article, “Effect of Sulfaphenazole on Tissue Plasminogen Activator Release in Normotensive Subjects and Hypertensive Patients”
Brown NJ, Pretorius M. Letter by Brown and Pretorius Regarding Article, “Effect of Sulfaphenazole on Tissue Plasminogen Activator Release in Normotensive Subjects and Hypertensive Patients”. Circulation 2009, 120: e159; author reply e160. PMID: 19901200, DOI: 10.1161/circulationaha.109.874743.Peer-Reviewed Original ResearchEndogenous Nitric Oxide Contributes to Bradykinin-Stimulated Glucose Uptake but Attenuates Vascular Tissue-Type Plasminogen Activator Release
Pretorius M, Brown NJ. Endogenous Nitric Oxide Contributes to Bradykinin-Stimulated Glucose Uptake but Attenuates Vascular Tissue-Type Plasminogen Activator Release. Journal Of Pharmacology And Experimental Therapeutics 2009, 332: 291-297. PMID: 19841473, PMCID: PMC2802470, DOI: 10.1124/jpet.109.160168.Peer-Reviewed Original ResearchConceptsT-PA releaseNet t-PA releaseForearm blood flowTissue-type plasminogen activator releaseL-NMMANitric oxide synthasePlasminogen activator releaseGlucose uptakeActivator releaseBaseline forearm blood flowBaseline forearm vascular resistanceArterial-venous gradientEndogenous NO contributesForearm vascular resistanceNitric oxide contributesIntra-arterial bradykininMonomethyl-L-arginineMuscle glucose uptakeCyclooxygenase inhibitor aspirinEndogenous nitric oxide contributesGender-stratified analysesVascular resistanceNondiabetic subjectsNOS inhibitionFibrinolytic response
2008
Male–female differences in the genetic regulation of t-PA and PAI-1 levels in a Ghanaian population
Schoenhard JA, Asselbergs FW, Poku KA, Stocki SA, Gordon S, Vaughan DE, Brown NJ, Moore JH, Williams SM. Male–female differences in the genetic regulation of t-PA and PAI-1 levels in a Ghanaian population. Human Genetics 2008, 124: 479-488. PMID: 18953568, PMCID: PMC2770717, DOI: 10.1007/s00439-008-0573-x.Peer-Reviewed Original ResearchConceptsPlasminogen activator inhibitor-1PAI-1 levelsTissue-type plasminogen activatorRenin polymorphismPAI-1 4G/5G polymorphismRenin-angiotensin systemDiastolic blood pressurePopulation-based sampleActivator inhibitor-1Large-scale population-based samplePAI-1 expressionBlood pressureTotal cholesterolThromboembolic diseasePlasma levelsRisk factorsCardiovascular diseaseD polymorphismMetabolic parametersG polymorphismFibrinolytic systemGene polymorphismsThrombus formationCaucasian subjectsGhanaian population17&bgr;-Estradiol Increases Basal but Not Bradykinin-Stimulated Release of Active t-PA in Young Postmenopausal Women
Pretorius M, van Guilder GP, Guzman RJ, Luther JM, Brown NJ. 17&bgr;-Estradiol Increases Basal but Not Bradykinin-Stimulated Release of Active t-PA in Young Postmenopausal Women. Hypertension 2008, 51: 1190-1196. PMID: 18259028, PMCID: PMC2673569, DOI: 10.1161/hypertensionaha.107.105627.Peer-Reviewed Original ResearchConceptsYounger postmenopausal womenT-PA antigenEffect of angiotensinPostmenopausal womenT-PA releaseActive t-PAT-PAAntigen releasePlasminogen activator inhibitor-1 antigenTissue-type plasminogen activator releaseNet t-PA releaseForearm blood flowPlasminogen activator releaseEnzyme inhibitionCrossover studyIntraarterial infusionBasal releaseVascular releaseTreatment periodFibrinolytic functionPlaceboBlood flowActivator releaseAngiotensinAntigenBradykinin Type 2 Receptor BE1 Genotype Influences Bradykinin-Dependent Vasodilation During Angiotensin-Converting Enzyme Inhibition
Van Guilder GP, Pretorius M, Luther JM, Byrd JB, Hill K, Gainer JV, Brown NJ. Bradykinin Type 2 Receptor BE1 Genotype Influences Bradykinin-Dependent Vasodilation During Angiotensin-Converting Enzyme Inhibition. Hypertension 2008, 51: 454-459. PMID: 18180402, PMCID: PMC2581632, DOI: 10.1161/hypertensionaha.107.102574.Peer-Reviewed Original ResearchMeSH KeywordsAdultAngiotensin-Converting Enzyme InhibitorsBlood PressureBradykininDrug SynergismEnalaprilatEndothelium, VascularFemaleForearmGenotypeHumansInjections, Intra-ArterialMaleMethacholine ChlorideNitroprussidePolymorphism, GeneticReceptor, Bradykinin B2Regional Blood FlowSex FactorsTissue Plasminogen ActivatorVascular ResistanceVasodilationVasodilator AgentsConceptsForearm blood flowT-PA releaseForearm vascular resistanceVascular resistanceBlood flowBlood pressureTissue-type plasminogen activator releaseBasal forearm blood flowAngiotensin-Converting Enzyme InhibitionGenotype groupsNet t-PA releaseReceptor-mediated vasodilationBasal forearm vascular resistanceSystolic blood pressureBody mass indexIntra-arterial bradykininEffect of bradykininDegradation of bradykininPlasminogen activator releaseEnzyme inhibitionMass indexVascular responsesActivator releaseBradykininWhite American subjects
2007
Acute tissue-type plasminogen activator release in human microvascular endothelial cells: The roles of Gαq, PLC-β, IP3 and 5,6-epoxyeicosatrienoic acid
Muldowney JA, Painter CA, Sanders-Bush E, Brown NJ, Vaughan DE. Acute tissue-type plasminogen activator release in human microvascular endothelial cells: The roles of Gαq, PLC-β, IP3 and 5,6-epoxyeicosatrienoic acid. Thrombosis And Haemostasis 2007, 97: 263-271. PMID: 17264956, DOI: 10.1160/th05-02-0092.Peer-Reviewed Original ResearchMeSH Keywords8,11,14-Eicosatrienoic AcidAortaBiological FactorsCell ProliferationCells, CulturedDose-Response Relationship, DrugEndothelial CellsEpoprostenolGTP-Binding Protein alpha Subunits, Gq-G11HumansInositol 1,4,5-TrisphosphateIsoenzymesMicrocirculationNitric OxidePhospholipase C betaPotassiumSignal TransductionThrombinTime FactorsTissue Plasminogen ActivatorType C PhospholipasesUmbilical VeinsConceptsT-PA releaseHuman microvascular endothelial cellsMicrovascular endothelial cellsEpoxyeicosatrienoic acidsTissue-type plasminogen activatorTissue-type plasminogen activator releaseEndothelial cellsIP3 receptor antagonistCalcium signalingT-PA antigenRole of GαqPlasminogen activator releaseMS-PPOHPhysiologic releaseCytochrome P450 inhibitorsL-NAMEEET antagonistReceptor antagonistActivator releaseVascular homeostasisNitric oxideProstacyclinPlasminogen activatorEET-methyl esterMicroM concentrationA population-based study in Ghana to investigate inter-individual variation in plasma t-PA and PAI-1.
Williams SM, Stocki S, Jiang L, Brew K, Gordon S, Vaughan DE, Brown NJ, Poku KA, Moore JH. A population-based study in Ghana to investigate inter-individual variation in plasma t-PA and PAI-1. Ethnicity & Disease 2007, 17: 492-7. PMID: 17985503.Peer-Reviewed Original ResearchMeSH KeywordsAdultFemaleGenetic Predisposition to DiseaseGhanaHumansMalePlasminogen Activator Inhibitor 1Sex FactorsTissue Plasminogen ActivatorVenous ThrombosisConceptsPlasminogen activator inhibitor-1Tissue-type plasminogen activatorInter-individual variationGenetic architectureSignificant genetic componentGenetic analysisGenetic componentPhenotype informationPopulation-based studyPlasma t-PAActivator inhibitor-1Inhibitor-1Unrelated subjectsLarge-scale population-based studyStudy designChronic disease statusSystolic blood pressurePlasminogen activatorRisk of thrombosisProtein
2006
Blood Pressure Reduction and Tissue-Type Plasminogen Activator Release
Brown NJ. Blood Pressure Reduction and Tissue-Type Plasminogen Activator Release. Hypertension 2006, 47: 648-649. PMID: 16520404, DOI: 10.1161/01.hyp.0000209952.30603.e9.Peer-Reviewed Original Research
2005
Angiotensin-Converting Enzyme Inhibition Increases Basal Vascular Tissue Plasminogen Activator Release in Women But Not in Men
Pretorius M, Luther JM, Murphey LJ, Vaughan DE, Brown NJ. Angiotensin-Converting Enzyme Inhibition Increases Basal Vascular Tissue Plasminogen Activator Release in Women But Not in Men. Arteriosclerosis Thrombosis And Vascular Biology 2005, 25: 2435-2440. PMID: 16166566, DOI: 10.1161/01.atv.0000186185.13977.94.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge FactorsAngiotensin-Converting Enzyme InhibitorsBlood PressureBradykininEnalaprilatFemaleHumansLuteal PhaseMaleMethacholine ChlorideMiddle AgedNitroprussideParasympathomimeticsPeptide FragmentsPeptidyl-Dipeptidase APostmenopausePremenopauseRegional Blood FlowSex CharacteristicsTissue Plasminogen ActivatorVasodilator AgentsConceptsT-PA releaseForearm blood flowBasal t-PA releaseNet t-PA releaseTissue plasminogen activator releasePostmenopausal womenPlasminogen activator releaseOlder menPremenopausal womenMenopausal statusActivator releaseIntra-arterial enalaprilatEffect of ACEIEndogenous bradykininHormone replacementExogenous bradykininBlood flowACEIBradykininEnalaprilatWomenYoung menMenEnzyme inhibitionRelease
2004
Established and Emerging Plasma Biomarkers in the Prediction of First Atherothrombotic Events
Ridker PM, Brown NJ, Vaughan DE, Harrison DG, Mehta JL. Established and Emerging Plasma Biomarkers in the Prediction of First Atherothrombotic Events. Circulation 2004, 109: iv-6-iv-19. PMID: 15226246, DOI: 10.1161/01.cir.0000133444.17867.56.Peer-Reviewed Original Research
2003
Angiotensin-Converting Enzyme Inhibition Alters the Fibrinolytic Response to Cardiopulmonary Bypass
Pretorius M, Murphey LJ, McFarlane JA, Vaughan DE, Brown NJ. Angiotensin-Converting Enzyme Inhibition Alters the Fibrinolytic Response to Cardiopulmonary Bypass. Circulation 2003, 108: 3079-3083. PMID: 14656921, DOI: 10.1161/01.cir.0000105765.54573.60.Peer-Reviewed Original ResearchConceptsPostoperative day 1PAI-1 antigenCardiopulmonary bypassACE inhibitorsPAI-1 expressionACEI groupACE inhibitionPlasminogen activator inhibitor-1 (PAI-1) concentrationsTPA activityTissue-type plasminogen activator antigenAngiotensin-converting enzyme inhibitionAcute graft thrombosisPreoperative ACE inhibitorsMorning of surgeryCoronary artery bypassVein graft occlusionPlasminogen activator antigenArterial blood samplesArtery bypassGraft thrombosisGraft occlusionFibrinolytic responseAngiotensin IIBlood samplesDay 1Angiotensin-Converting Enzyme Inhibition Increases Human Vascular Tissue-Type Plasminogen Activator Release Through Endogenous Bradykinin
Pretorius M, Rosenbaum D, Vaughan DE, Brown NJ. Angiotensin-Converting Enzyme Inhibition Increases Human Vascular Tissue-Type Plasminogen Activator Release Through Endogenous Bradykinin. Circulation 2003, 107: 579-585. PMID: 12566370, DOI: 10.1161/01.cir.0000046268.59922.a4.Peer-Reviewed Original ResearchMeSH KeywordsAdultAngiotensin-Converting Enzyme InhibitorsBlood Flow VelocityBradykininBradykinin Receptor AntagonistsDose-Response Relationship, DrugEnalaprilatEndothelium, VascularFemaleFibrinolysisForearmHumansInfusions, Intra-ArterialMaleMethacholine ChlorideMuscarinic AgonistsRegional Blood FlowSmokingTissue Plasminogen ActivatorVascular ResistanceConceptsForearm blood flowNet t-PA releaseT-PA releaseEndothelial t-PA releaseHoe 140T-PA responseEndogenous bradykininACE inhibitionExogenous bradykininTissue-type plasminogen activator releaseReceptor antagonist HOE 140Angiotensin-Converting Enzyme InhibitionBradykinin receptor antagonist HOE 140Effects of enalaprilatIntra-arterial enalaprilatIntra-arterial infusionPlasminogen activator releaseEnzyme inhibitionFBF responseVascular resistanceBlood flowActivator releaseEnalaprilatBradykininMethacholine
2002
ACE Inhibition Versus Angiotensin Type 1 Receptor Antagonism
Brown NJ, Kumar S, Painter CA, Vaughan DE. ACE Inhibition Versus Angiotensin Type 1 Receptor Antagonism. Hypertension 2002, 40: 859-865. PMID: 12468570, DOI: 10.1161/01.hyp.0000040264.15961.48.Peer-Reviewed Original ResearchMeSH KeywordsAngiotensin Receptor AntagonistsAngiotensin-Converting Enzyme InhibitorsAntihypertensive AgentsBlood GlucoseBlood PressureDiureticsDose-Response Relationship, DrugDrug Therapy, CombinationFemaleHumansHydrochlorothiazideHypertensionInsulinInsulin ResistanceLosartanMaleMiddle AgedPlasminogen Activator Inhibitor 1RamiprilReceptor, Angiotensin, Type 1Renin-Angiotensin SystemSodium Chloride Symporter InhibitorsTissue Plasminogen ActivatorTreatment OutcomeConceptsPlasminogen activator inhibitor-1PAI-1 antigenAngiotensin type 1 receptor antagonismPlasma PAI-1 antigenAT1 receptor antagonismReceptor antagonismACE inhibitionAddition of ramiprilAngiotensin receptor antagonismWeeks of hydrochlorothiazideEffects of losartanPlasma PAI-1Activator inhibitor-1Aldosterone systemHypertensive subjectsBlood pressureFibrinolytic variablesMyocardial infarctionTPA antigenRisk factorsTreatment periodLosartanTPA activityAntigenInhibitor-1The relationship between plasma t‐PA and PAI‐1 levels is dependent on epistatic effects of the ACE I/D and PAI‐1 4G/5G polymorphisms
Moore J, Smolkin M, Lamb J, Brown N, Vaughan D. The relationship between plasma t‐PA and PAI‐1 levels is dependent on epistatic effects of the ACE I/D and PAI‐1 4G/5G polymorphisms. Clinical Genetics 2002, 62: 53-59. PMID: 12123488, DOI: 10.1034/j.1399-0004.2002.620107.x.Peer-Reviewed Original ResearchEthnicity Affects Vasodilation, but Not Endothelial Tissue Plasminogen Activator Release, in Response to Bradykinin
Rosenbaum DA, Pretorius M, Gainer JV, Byrne D, Murphey LJ, Painter CA, Vaughan DE, Brown NJ. Ethnicity Affects Vasodilation, but Not Endothelial Tissue Plasminogen Activator Release, in Response to Bradykinin. Arteriosclerosis Thrombosis And Vascular Biology 2002, 22: 1023-1028. PMID: 12067915, DOI: 10.1161/01.atv.0000017704.45007.1d.Peer-Reviewed Original ResearchMeSH KeywordsAdultAnalysis of VarianceBlack PeopleBradykininEndothelium, VascularFemaleFibrinolysinHumansMaleTissue Plasminogen ActivatorUnited StatesVasodilationWhite PeopleConceptsForearm blood flowFibrinolytic functionSodium nitroprussideEffect of ethnicityAge-matched normotensive subjectsTissue plasminogen activator antigenTissue plasminogen activator releaseDoses of bradykininPlasminogen activator antigenPlasminogen activator releaseFBF responseVasodilator responseNormotensive subjectsBrachial arteryIndependent agonistsArterial samplesBlood flowAntigen releaseActivator releaseBradykininMethacholineAcetylcholineWhite AmericansNitroprussideBlack AmericansSmoking Impairs Bradykinin-Stimulated t-PA Release
Pretorius M, Rosenbaum DA, Lefebvre J, Vaughan DE, Brown NJ. Smoking Impairs Bradykinin-Stimulated t-PA Release. Hypertension 2002, 39: 767-771. PMID: 11897760, DOI: 10.1161/hy0302.105767.Peer-Reviewed Original ResearchConceptsTissue plasminogen activator releaseTissue plasminogen activator responsePlasminogen activator releaseForearm blood flowDose-dependent increaseActivator releaseBlood flowDoses of nitroprussideSignificant dose-dependent increaseActivator responseStrain-gauge plethysmographyBody mass indexEffect of bradykininT-PA releaseReceptor-dependent mechanismEndothelial functionBrachial arteryMass indexMethacholineSmokersNonsmokersBradykininHuman endotheliumRandom orderSignificant differences