2022
Comparison of Pharmacy Refill Data With Chemical Adherence Testing in Assessing Medication Nonadherence in a Safety Net Hospital Setting
Osula D, Wu B, Schesing K, Das SR, Moss E, Alvarez K, Clark C, Halm EA, Brown NJ, Vongpatanasin W. Comparison of Pharmacy Refill Data With Chemical Adherence Testing in Assessing Medication Nonadherence in a Safety Net Hospital Setting. Journal Of The American Heart Association 2022, 11: e027099. PMID: 36193931, PMCID: PMC9673714, DOI: 10.1161/jaha.122.027099.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic beta-AntagonistsAngiotensin Receptor AntagonistsAngiotensin-Converting Enzyme InhibitorsAntihypertensive AgentsCalcium Channel BlockersCross-Sectional StudiesHumansHydroxymethylglutaryl-CoA Reductase InhibitorsHypertensionMedication AdherencePharmacySafety-net ProvidersSodium Chloride Symporter InhibitorsConceptsEnzyme inhibitors/angiotensin receptor blockersAngiotensin receptor blockersCalcium channel blockersReceptor blockersPositive predictive valueUncontrolled hypertensionBeta blockersMedication nonadherenceAntihypertensive drugsDrug classesChannel blockersAngiotensin-converting enzyme inhibitors/angiotensin receptor blockersPredictive valueAdherence testingSafety-net hospital settingSafety-net health systemLow positive predictive valuePharmacy refill dataProportion of daysCross-sectional studyPlasma drug levelsDiagnostic test characteristicsPharmacy fill dataCommon cardiovascular drugsRefill data
2021
Association of Apparent Treatment-Resistant Hypertension With Differential Risk of End-Stage Kidney Disease Across Racial Groups in the Million Veteran Program
Akwo EA, Robinson-Cohen C, Chung CP, Shah SC, Brown NJ, Ikizler TA, Wilson OD, Rowan BX, Shuey MM, Siew ED, Luther JM, Giri A, Hellwege JN, Edwards D, Roumie CL, Tao R, Tsao PS, Gaziano JM, Wilson PWF, O’Donnell C, Edwards TL, Kovesdy CP, Hung AM, Program O. Association of Apparent Treatment-Resistant Hypertension With Differential Risk of End-Stage Kidney Disease Across Racial Groups in the Million Veteran Program. Hypertension 2021, 78: 376-386. PMID: 34148359, PMCID: PMC8364328, DOI: 10.1161/hypertensionaha.120.16181.Peer-Reviewed Original Research
2020
Retrospective cohort study to characterise the blood pressure response to spironolactone in patients with apparent therapy-resistant hypertension using electronic medical record data
Shuey M, Perkins B, Nian H, Yu C, Luther JM, Brown N. Retrospective cohort study to characterise the blood pressure response to spironolactone in patients with apparent therapy-resistant hypertension using electronic medical record data. BMJ Open 2020, 10: e033100. PMID: 32461291, PMCID: PMC7259833, DOI: 10.1136/bmjopen-2019-033100.Peer-Reviewed Original ResearchMeSH KeywordsAntihypertensive AgentsBlood PressureElectronic Health RecordsHumansHypertensionRetrospective StudiesSpironolactoneTennesseeConceptsBody mass indexHigher body mass indexElectronic medical recordsBaseline systolic BPTherapy-resistant hypertensionBlood pressure responseRetrospective cohort studyDiastolic BPSystolic BPBP responseBaseline BPCohort studyChronic kidney disease stage 3Real-world clinical settingElectronic medical record dataMean systolic BPDisease stage 3Glomerular filtration rateIschemic heart diseasePressure responseMedical record dataClinical trial dataHigh-density lipoproteinLow-density lipoproteinAcademic medical center
2018
DPP (Dipeptidyl Peptidase)-4 Inhibition Potentiates the Vasoconstrictor Response to NPY (Neuropeptide Y) in Humans During Renin-Angiotensin-Aldosterone System Inhibition
Hubers SA, Wilson JR, Yu C, Nian H, Grouzmann E, Eugster P, Shibao CA, Billings FT, Jafarian Kerman S, Brown NJ. DPP (Dipeptidyl Peptidase)-4 Inhibition Potentiates the Vasoconstrictor Response to NPY (Neuropeptide Y) in Humans During Renin-Angiotensin-Aldosterone System Inhibition. Hypertension 2018, 72: 712-719. PMID: 29987109, PMCID: PMC6202157, DOI: 10.1161/hypertensionaha.118.11498.Peer-Reviewed Original ResearchConceptsNPY infusionPlacebo-controlled crossover studyAngiotensin-converting enzyme inhibitorAldosterone system inhibitionDose-dependent vasoconstrictionIntra-arterial enalaprilatAngiotensin receptor blockersForearm blood flowHigh-risk patientsOrder of treatmentReceptor blockersVasoconstrictor effectVasoconstrictor responsesCardiovascular effectsRenin-AngiotensinBrachial arteryHeart failureNorepinephrine releaseCrossover studyEndogenous NPYY1 receptorCrossover treatmentSystem inhibitionY2 receptorsDPP4 inhibitionCharacteristics and treatment of African-American and European-American patients with resistant hypertension identified using the electronic health record in an academic health centre: a case−control study
Shuey MM, Gandelman JS, Chung CP, Nian H, Yu C, Denny JC, Brown NJ. Characteristics and treatment of African-American and European-American patients with resistant hypertension identified using the electronic health record in an academic health centre: a case−control study. BMJ Open 2018, 8: e021640. PMID: 29950471, PMCID: PMC6020960, DOI: 10.1136/bmjopen-2018-021640.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic beta-AntagonistsAdultAgedAngiotensin Receptor AntagonistsAntihypertensive AgentsBlack or African AmericanBlood PressureCalcium Channel BlockersCase-Control StudiesDiabetes Mellitus, Type 2Electronic Health RecordsFemaleHumansHypertensionLogistic ModelsMaleMiddle AgedMultivariate AnalysisPrevalenceTennesseeWhite PeopleConceptsElectronic health recordsResistant hypertensionBlood pressureChronic kidney disease stage 3Mineralocorticoid receptor antagonist useClinical treatmentDihydropyridine calcium channel blockerAntihypertensive medication classesControlled blood pressureOutpatient blood pressureTotal hypertensive populationAngiotensin receptor blockersTransient ischemic attackDisease stage 3Health recordsMineralocorticoid receptor antagonistsReceptor antagonist useHigh blood pressureIschemic heart diseaseAlpha-2 agonistsBody mass indexCalcium channel blockersAfrican American patientsNumber of patientsType 2 diabetes
2017
Systolic Blood Pressure and Biochemical Assessment of Adherence
McNaughton CD, Brown NJ, Rothman RL, Liu D, Kabagambe EK, Levy PD, Self WH, Storrow AB, Collins SP, Roumie CL. Systolic Blood Pressure and Biochemical Assessment of Adherence. Hypertension 2017, 70: 307-314. PMID: 28652467, PMCID: PMC5531074, DOI: 10.1161/hypertensionaha.117.09659.Peer-Reviewed Original ResearchMeSH KeywordsAgedAntihypertensive AgentsBiomarkersBlood PressureBlood Pressure DeterminationCross-Sectional StudiesEmergency Medical ServicesEmergency Service, HospitalFemaleHealth LiteracyHumansHypertensionMaleMass SpectrometryMedication AdherenceMedication Therapy ManagementMiddle AgedUnited StatesConceptsElevated blood pressureSystolic blood pressureBlood pressureSystolic BPEmergency departmentBiochemical assessmentAntihypertensive adherenceAdherent patientsLower systolic blood pressureAntihypertensive medication adherenceHigher systolic BPPrimary care providersBody mass indexCross-sectional studyAntihypertensive nonadherenceNonadherent patientsPrimary outcomeED careMedication nonadherenceMass indexMedication adherenceAcademic hospitalCare providersAntihypertensivesBlood assays
2016
Plasminogen Activator Inhibitor‐1 and Diagnosis of the Metabolic Syndrome in a West African Population
Kodaman N, Aldrich MC, Sobota R, Asselbergs FW, Brown NJ, Moore JH, Williams SM. Plasminogen Activator Inhibitor‐1 and Diagnosis of the Metabolic Syndrome in a West African Population. Journal Of The American Heart Association 2016, 5: e003867. PMID: 27697752, PMCID: PMC5121488, DOI: 10.1161/jaha.116.003867.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAntihypertensive AgentsBlood GlucoseBlood PressureBody Mass IndexCholesterol, HDLCross-Sectional StudiesDiabetes MellitusFastingFemaleGhanaHumansHypertensionHypoglycemic AgentsMaleMetabolic SyndromeMiddle AgedPlasminogen Activator Inhibitor 1PrevalenceRural PopulationTriglyceridesUrban PopulationYoung AdultConceptsPlasminogen activator inhibitor-1Activator inhibitor-1Metabolic syndromeRisk factorsDiagnostic criteriaLow high-density lipoproteinInhibitor-1Relevance of MetSAge-standardized prevalenceConventional risk factorsCardiovascular disease riskBody mass indexMetS diagnostic criteriaPAI-1 levelsHigh-density lipoproteinCross-sectional analysisMetS prevalenceIschemic eventsMetS componentsMetS criteriaWest African populationsMass indexPlasma levelsGhanaian menAntifibrinolytic factors
2013
Fenofibrate lowers blood pressure in salt-sensitive but not salt-resistant hypertension
Gilbert K, Nian H, Yu C, Luther JM, Brown NJ. Fenofibrate lowers blood pressure in salt-sensitive but not salt-resistant hypertension. Journal Of Hypertension 2013, 31: 820-829. PMID: 23385647, PMCID: PMC3800119, DOI: 10.1097/hjh.0b013e32835e8227.Peer-Reviewed Original ResearchMeSH KeywordsAdultAntihypertensive AgentsBlood PressureCross-Over StudiesDouble-Blind MethodFemaleFenofibrateHeart RateHumansMaleMiddle AgedSodium Chloride, DietaryConceptsBlood pressureSalt dietHeart ratePeroxisome proliferator-activated receptor α (PPARα) agonistSalt-resistant hypertensionPlasma renin activityRenal vascular resistanceEffect of fenofibrateLow-salt dietMean arterial pressureHigh-salt dietDouble-blind protocolTreatment of hyperlipidemiaReceptor α agonistSalt sensitivityHypertensive volunteersRenal vasoconstrictionRenin activitySodium excretionVascular resistanceArterial pressureHypertensive individualsSalt intakeSystolic pressureTreatment arms
2011
Combined angiotensin-converting enzyme inhibition and receptor blockade associate with increased risk of cardiovascular death in hemodialysis patients
Chan KE, Ikizler TA, Gamboa JL, Yu C, Hakim RM, Brown NJ. Combined angiotensin-converting enzyme inhibition and receptor blockade associate with increased risk of cardiovascular death in hemodialysis patients. Kidney International 2011, 80: 978-985. PMID: 21775975, PMCID: PMC3656595, DOI: 10.1038/ki.2011.228.Peer-Reviewed Original ResearchMeSH KeywordsAnalysis of VarianceAngiotensin II Type 1 Receptor BlockersAngiotensin-Converting Enzyme InhibitorsAntihypertensive AgentsCardiovascular DiseasesDrug Therapy, CombinationFemaleHumansHypertensionKaplan-Meier EstimateKidney Failure, ChronicLogistic ModelsMaleMiddle AgedPropensity ScoreProportional Hazards ModelsRenal DialysisRetrospective StudiesRisk AssessmentRisk FactorsSurvival RateTime FactorsTreatment OutcomeUnited StatesConceptsAngiotensin receptor blockersAntihypertensive medicationsARB therapyCardiovascular deathChronic hemodialysisCardiovascular mortalityHazard ratioHemodialysis patientsRisk factorsBaseline cardiovascular risk factorsAngiotensin-converting enzyme inhibitionLarge dialysis providerCardiovascular risk factorsChronic hemodialysis patientsKaplan-Meier methodMortality hazard ratioAntihypertensive therapyReceptor blockersAntihypertensive agentsCox regressionCerebrovascular mortalityClinical trialsTreatment weightingObservational studyACEI
2008
Association of a CYP4A11 Variant and Blood Pressure in Black Men
Gainer JV, Lipkowitz MS, Yu C, Waterman MR, Dawson EP, Capdevila JH, Brown NJ, Group A. Association of a CYP4A11 Variant and Blood Pressure in Black Men. Journal Of The American Society Of Nephrology 2008, 19: 1606-1612. PMID: 18385420, PMCID: PMC2488260, DOI: 10.1681/asn.2008010063.Peer-Reviewed Original ResearchConceptsHypertensive renal diseaseRenal diseaseClinical outcomesHigher systolic BPAdverse clinical outcomesWhite individualsRegulation of BPEndogenous arachidonic acidBlack menBaseline proteinuriaCYP4A11 variantsHypertensive nephrosclerosisRenal vasoconstrictorClinical characteristicsCumulative incidenceRenal functionBlood pressureDiastolic BPHigher systolicSystolic BPHigh BPKidney diseasePulse pressureMale miceHypertension
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
Regression of Existing Glomerulosclerosis by Inhibition of Aldosterone
Aldigier JC, Kanjanbuch T, Ma LJ, Brown NJ, Fogo AB. Regression of Existing Glomerulosclerosis by Inhibition of Aldosterone. Journal Of The American Society Of Nephrology 2005, 16: 3306-3314. PMID: 16192423, DOI: 10.1681/asn.2004090804.Peer-Reviewed Original ResearchConceptsInhibition of aldosteroneAngiotensin type 1 receptor antagonistType 1 receptor antagonistAdult male Sprague-DawleySeverity of glomerulosclerosisDevelopment of glomerulosclerosisMale Sprague-DawleyEffect of inhibitionCONT ratsGlomerulosclerosis indexSerum creatinineSystolic BPAntihypertensive drugsReceptor antagonistSprague-DawleySP ratsGlomerulosclerosisSpironolactoneSame ratsRatsSP groupAldosteroneFurther treatmentWkInhibition
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-1Spironolactone Abolishes the Relationship between Aldosterone and Plasminogen Activator Inhibitor-1 in Humans
Sawathiparnich P, Kumar S, Vaughan DE, Brown NJ. Spironolactone Abolishes the Relationship between Aldosterone and Plasminogen Activator Inhibitor-1 in Humans. The Journal Of Clinical Endocrinology & Metabolism 2002, 87: 448-452. PMID: 11836266, DOI: 10.1210/jcem.87.2.7980.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAldosteroneAntihypertensive AgentsBlood PressureCross-Over StudiesDiureticsDouble-Blind MethodFibrinolysisHumansHydrochlorothiazideHypertensionMaleMiddle AgedMineralocorticoid Receptor AntagonistsPlasminogen Activator Inhibitor 1Sodium Chloride Symporter InhibitorsSpironolactoneConceptsPAI-1 antigenT-PA antigenAngiotensin IITissue-type plasminogen activator antigenEffect of spironolactoneSystolic blood pressureMale hypertensive subjectsPlasminogen activator antigenPlasminogen activator inhibitor-1Plasminogen activator inhibitor-1 productionActivator inhibitor-1PAI-1 productionAldosterone systemHypertensive subjectsSerum aldosteroneBlood pressureEndogenous aldosteroneHemodynamic parametersAldosteroneStudy daysSpironolactoneHCTZPAI-1AntigenInhibitor-1
2001
Angiotensin-(1-7) Does Not Affect Vasodilator or TPA Responses to Bradykinin in Human Forearm
Wilsdorf T, Gainer J, Murphey L, Vaughan D, Brown N. Angiotensin-(1-7) Does Not Affect Vasodilator or TPA Responses to Bradykinin in Human Forearm. Hypertension 2001, 37: 1136-1140. PMID: 11304515, DOI: 10.1161/01.hyp.37.4.1136.Peer-Reviewed Original ResearchConceptsForearm blood flowAng IBlood flowTissue plasminogen activator responseTPA releaseAng I infusionDoses of AngHuman forearm vasculatureEffects of AngPeripheral vascular resistanceSystemic hemodynamic effectsRole of AngNormotensive subjectsVascular resistanceVasoconstrictor responsesVasodilator effectHemodynamic effectsBrachial arteryForearm vasculatureI infusionACE inhibitionSupraphysiological dosesRat modelConstant infusionAng
1999
Comparative Effect of Angiotensin-Converting Enzyme Inhibition and Angiotensin II Type 1 Receptor Antagonism on Plasma Fibrinolytic Balance in Humans
Brown N, Agirbasli M, Vaughan D. Comparative Effect of Angiotensin-Converting Enzyme Inhibition and Angiotensin II Type 1 Receptor Antagonism on Plasma Fibrinolytic Balance in Humans. Hypertension 1999, 34: 285-290. PMID: 10454455, DOI: 10.1161/01.hyp.34.2.285.Peer-Reviewed Original ResearchMeSH KeywordsAdultAldosteroneAngiotensin IIAngiotensin Receptor AntagonistsAngiotensin-Converting Enzyme InhibitorsAntihypertensive AgentsBlood PressureData Interpretation, StatisticalDiet, Sodium-RestrictedFemaleFibrinolysisHeart RateHumansIsoquinolinesLosartanMalePlasminogen Activator Inhibitor 1QuinaprilReninRenin-Angiotensin SystemTetrahydroisoquinolinesTissue Plasminogen ActivatorConceptsPlasminogen activator inhibitor-1PAI-1 antigenTissue plasminogen activatorACE inhibitorsFibrinolytic balanceAldosterone systemAngiotensin II type 1 receptor antagonismAngiotensin II type 1 receptor antagonistAngiotensin-Converting Enzyme InhibitionType 1 receptor antagonistPlasma PAI-1 antigenPAI-1 antigen concentrationsAntigen concentrationEquivalent hypotensive dosesPlasma fibrinolytic balancePlasma renin activityAngiotensin II formationLow salt intakePAI-1 activityClass of drugsTPA antigen concentrationsActivator inhibitor-1Enzyme inhibitionLosartan treatmentQuinapril treatment
1998
Effect of Bradykinin-Receptor Blockade on the Response to Angiotensin-Converting–Enzyme Inhibitor in Normotensive and Hypertensive Subjects
Gainer JV, Morrow JD, Loveland A, King DJ, Brown NJ. Effect of Bradykinin-Receptor Blockade on the Response to Angiotensin-Converting–Enzyme Inhibitor in Normotensive and Hypertensive Subjects. New England Journal Of Medicine 1998, 339: 1285-1292. PMID: 9791144, DOI: 10.1056/nejm199810293391804.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic beta-AntagonistsAngiotensin-Converting Enzyme InhibitorsAntihypertensive AgentsBlood PressureBradykininBradykinin Receptor AntagonistsCaptoprilDiet, Sodium-RestrictedDrug InteractionsDrug Therapy, CombinationFemaleHumansHypertensionKidneyLosartanMaleReference ValuesRenin-Angiotensin SystemSingle-Blind MethodConceptsPlasma renin activityBlood pressureACE inhibitionHypertensive subjectsShort-term effectsRenin activitySpecific bradykinin receptor antagonistAngiotensin converting enzyme (ACE) inhibitorsAdministration of captoprilAdministration of losartanBradykinin receptor blockadeCoadministration of icatibantContribution of bradykininRenal hemodynamic responseNormal blood pressureRenin-angiotensin systemSeparate study daysBradykinin receptor antagonistDegradation of bradykininAntagonist losartanHypertensive personsHypotensive effectAngiotensin IIAngiotensin-ConvertingHemodynamic response
1997
Coadministration of glyburide and minoxidil, drugs with opposing effects on potassium channels
Stein C, Brown N, Carlson M, Campbell P, Wood A. Coadministration of glyburide and minoxidil, drugs with opposing effects on potassium channels. Clinical Pharmacology & Therapeutics 1997, 61: 662-668. PMID: 9209249, DOI: 10.1016/s0009-9236(97)90101-6.Peer-Reviewed Original ResearchConceptsBlood pressureHypotensive effectBlood pressure-lowering effectPotassium channelsIntravenous glucose tolerance testImportant pharmacodynamic interactionsSmall hypotensive responseDouble-blind fashionPressure-lowering effectCoadministration of drugsGlucose tolerance testSensitive potassium channelsSimilar significant decreaseBlood glucose concentrationHypotensive responsePharmacodynamic interactionsPharmacodynamic effectsSignificant hypoglycemiaHypoglycemic agentsTolerance testInsulin responseDrug interactionsHealthy subjectsHealthy volunteersHigh doseSelective Stimulation of Tissue-Type Plasminogen Activator (t-PA) In Vivo by Infusion of Bradykinin
Brown N, Nadeau J, Vaughan D. Selective Stimulation of Tissue-Type Plasminogen Activator (t-PA) In Vivo by Infusion of Bradykinin. Thrombosis And Haemostasis 1997, 77: 522-525. PMID: 9066005, DOI: 10.1055/s-0038-1656000.Peer-Reviewed Original ResearchMeSH KeywordsAnalysis of VarianceAngiotensin-Converting Enzyme InhibitorsAntihypertensive AgentsBlood PressureBradykininCaptoprilFemaleHumansHypertensionIsoquinolinesMalePlasminogen Activator Inhibitor 1QuinaprilRandomized Controlled Trials as TopicTetrahydroisoquinolinesTissue Plasminogen ActivatorConceptsT-PA antigen levelsTissue-type plasminogen activatorMean arterial pressureT-PA levelsAntigen levelsPAI-1 antigen levelsInfusion of bradykininSympathetic nervous systemEffect of bradykininTissue-type plasminogen activator secretionHypertensive patientsHemodynamic effectsArterial pressurePlasminogen activator secretionAngiotensin IIAnimal modelsPotent stimulusNervous systemPAI-1ACEIBradykininBradykinin resultsSelective stimulationPlasminogen activatorSignificant decrease
1996
Losartan blocks aldosterone and renal vascular responses to angiotensin II in humans.
Gandhi S, Ryder D, Brown N. Losartan blocks aldosterone and renal vascular responses to angiotensin II in humans. Hypertension 1996, 28: 961-6. PMID: 8952583, DOI: 10.1161/01.hyp.28.6.961.Peer-Reviewed Original ResearchConceptsRenal plasma flow responseExogenous Ang IIRenal plasma flowBaseline renal plasma flowPara-aminohippurate clearanceAng IIAldosterone levelsPlasma flow responseAngiotensin IIAng II type 1 receptor blockadeAng II type 1 receptorFlow responseBaseline plasma aldosterone levelsType 1 receptor blockadeII type 1 receptorAng II doseBaseline systolic pressureRenal vascular responseAng II infusionEffects of losartanPlasma aldosterone levelsSystolic pressure responseType 1 receptorAbsence of losartanPmol/L