2022
DPP4 (Dipeptidyl Peptidase-4) Inhibition Increases Catecholamines Without Increasing Blood Pressure During Sustained ACE (Angiotensin-Converting Enzyme) Inhibitor Treatment
Wilson JR, Garner EM, Mashayekhi M, Hubers SA, Bustamante C, Kerman SJ, Nian H, Shibao CA, Brown NJ. DPP4 (Dipeptidyl Peptidase-4) Inhibition Increases Catecholamines Without Increasing Blood Pressure During Sustained ACE (Angiotensin-Converting Enzyme) Inhibitor Treatment. Hypertension 2022, 79: 827-835. PMID: 35045722, PMCID: PMC8917054, DOI: 10.1161/hypertensionaha.121.18348.Peer-Reviewed Original ResearchMeSH KeywordsAdultAngiotensin Receptor AntagonistsAngiotensin-Converting Enzyme InhibitorsAngiotensinsAprepitantBlood PressureCardiovascular AgentsCatecholaminesCross-Over StudiesDiabetes Mellitus, Type 2Dipeptidyl Peptidase 4HumansNorepinephrineRamiprilRenin-Angiotensin SystemSitagliptin PhosphateValsartanConceptsDPP4 inhibitionBlood pressureACE inhibitionDouble-blind crossover studyAcute ACE inhibitionBlood pressure armNK1 receptor blockerACE inhibitor treatmentOral diabetes medicationsCalcium channel blockersType 2 diabetesEffects of DPP4Aldosterone systemCardiovascular complicationsDiabetes medicationsReceptor blockersCardiovascular effectsCrossover therapyHeart failureHypotensive effectCrossover studyChannel blockersDPP4 inhibitorsHeart rateInhibitor treatment
2021
Active B-Type Natriuretic Peptide Measured by Mass Spectrometry and Response to Sacubitril/Valsartan
Dillon EM, Wei SD, Gupta DK, Nian H, Rodibaugh BS, Bachmann KN, Naftilan AJ, Stevenson LW, Brown NJ. Active B-Type Natriuretic Peptide Measured by Mass Spectrometry and Response to Sacubitril/Valsartan. Journal Of Cardiac Failure 2021, 27: 1231-1239. PMID: 34133968, PMCID: PMC8578199, DOI: 10.1016/j.cardfail.2021.05.026.Peer-Reviewed Original ResearchConceptsSacubitril/valsartanSacubitril/valsartan treatmentHeart failureBNP1-32NT-proBNPValsartan treatmentActive B-type natriuretic peptideEnd-stage renal diseaseB-type natriuretic peptideNT-proBNP immunoassaysPg/mLRenal diseaseNatriuretic peptideBNP productionHealthy volunteersBNPPg/ValsartanPatientsInhibition of degradationPeptide immunoassayBNP degradationTreatmentImmunoassayMS accounts
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 inhibitionAngiotensin receptor blocker vs ACE inhibitor effects on HDL functionality in patients on maintenance hemodialysis
Kaseda R, Tsuchida Y, Gamboa JL, Zhong J, Zhang L, Yang H, Dikalova A, Bian A, Davies S, Fogo AF, Linton MF, Brown NJ, Ikizler TA, Kon V. Angiotensin receptor blocker vs ACE inhibitor effects on HDL functionality in patients on maintenance hemodialysis. Nutrition Metabolism And Cardiovascular Diseases 2018, 28: 582-591. PMID: 29691148, PMCID: PMC5959764, DOI: 10.1016/j.numecd.2018.02.020.Peer-Reviewed Original ResearchConceptsAngiotensin receptor blockersHigh-density lipoproteinToll-like receptorsAnti-inflammatory effectsReceptor blockersCytokine responsesActivation of TLRsSerum amyloid A (SAA) levelsACE inhibitor effectsHigh cardiovascular riskAdvanced kidney diseaseMaintenance hemodialysis patientsInflammatory cytokine responseAnti-oxidative effectsACEI treatmentAtheroprotective actionARB treatmentCardiovascular eventsMaintenance hemodialysisAngiotensin actionCardiovascular riskHemodialysis patientsCellular superoxide productionHDL functionalityKidney disease
2016
Combined Angiotensin Receptor Antagonism and Neprilysin Inhibition
Hubers SA, Brown NJ. Combined Angiotensin Receptor Antagonism and Neprilysin Inhibition. Circulation 2016, 133: 1115-1124. PMID: 26976916, PMCID: PMC4800749, DOI: 10.1161/circulationaha.115.018622.Peer-Reviewed Original ResearchMeSH KeywordsAbnormalities, Drug-InducedAminobutyratesAngioedemaAngiotensin Receptor AntagonistsBiphenyl CompoundsBradykininContraindicationsDrug CombinationsDrug CostsDrug SynergismEnalaprilEnzyme InhibitorsFemaleFollow-Up StudiesHeart FailureHumansHyperkalemiaHypertensionKidneyMulticenter Studies as TopicNatriuretic PeptidesNeprilysinPregnancyProdrugsProspective StudiesPyridinesRandomized Controlled Trials as TopicStroke VolumeTetrazolesThiazepinesValsartanConceptsValsartan/sacubitrilReduced ejection fractionHeart failureNatriuretic peptideEjection fractionN-terminal pro-brain natriuretic peptideNeprilysin inhibitor prodrug sacubitrilPro-brain natriuretic peptideAngiotensin receptor blocker valsartanAngiotensin receptor antagonismAngiotensin receptor blockersHeart Failure TrialReceptor blocker valsartanAngiotensin receptor antagonistsBrain natriuretic peptideOngoing clinical trialsMechanism of actionNeprilysin inhibitionAldosterone antagonistsAldosterone systemReceptor blockersBlood pressureFailure TrialPathophysiological mechanismsReceptor antagonism
2015
Angiotensin converting enzyme inhibition increases ADMA concentration in patients on maintenance hemodialysis – a randomized cross-over study
Gamboa JL, Pretorius M, Sprinkel KC, Brown NJ, Ikizler TA. Angiotensin converting enzyme inhibition increases ADMA concentration in patients on maintenance hemodialysis – a randomized cross-over study. BMC Nephrology 2015, 16: 167. PMID: 26494370, PMCID: PMC4618919, DOI: 10.1186/s12882-015-0162-x.Peer-Reviewed Original ResearchConceptsEnd-stage renal diseaseAngiotensin receptor blockersMaintenance hemodialysisCross-over studyADMA levelsAsymmetric dimethylarginineACE inhibitionADMA productionADMA concentrationsShort-term ACE inhibitionRandomized cross-over studyIntracellular ADMA concentrationStudy of patientsEffect of bradykininB2 receptor stimulationACE inhibitor-induced increaseInhibitor-induced increaseRamipril treatmentCardiovascular morbidityReceptor blockersEndothelial dysfunctionRenal diseaseBradykinin levelsBackgroundEndothelial dysfunctionDialysis session
2011
Comparative Effects of Angiotensin-Converting Enzyme Inhibition and Angiotensin-Receptor Blockade on Inflammation during Hemodialysis
Gamboa JL, Pretorius M, Todd-Tzanetos DR, Luther JM, Yu C, Ikizler TA, Brown NJ. Comparative Effects of Angiotensin-Converting Enzyme Inhibition and Angiotensin-Receptor Blockade on Inflammation during Hemodialysis. Journal Of The American Society Of Nephrology 2011, 23: 334-342. PMID: 22158433, PMCID: PMC3269170, DOI: 10.1681/asn.2011030287.Peer-Reviewed Original ResearchMeSH KeywordsAngiotensin Receptor AntagonistsAngiotensin-Converting Enzyme InhibitorsBlood CoagulationCD40 LigandCross-Over StudiesCytokinesDouble-Blind MethodFemaleHemodynamicsHumansInflammationKidney Failure, ChronicMaleMiddle AgedOxidative StressRamiprilRenal DialysisReninTetrazolesValineValsartanConceptsAngiotensin receptor blockersMaintenance hemodialysis patientsCardiovascular mortalityHemodialysis patientsACE inhibitorsGreater anti-inflammatory effectAngiotensin-Converting Enzyme InhibitionOxidative stressAngiotensin receptor blockadeIL-10 concentrationsD-dimer levelsIL-6 levelsProspective clinical trialsAnti-inflammatory effectsIL-1β concentrationsLevels of vWFSerial blood samplingCardiovascular eventsEndothelial dysfunctionCrossover studyWashout periodIsoprostane levelsClinical trialsDrug treatmentVWF levels
2006
Bradykinin B2 Receptor Does Not Contribute to Blood Pressure Lowering during AT1 Receptor Blockade
LeFebvre J, Shintani A, Gebretsadik T, Petro JR, Murphey LJ, Brown NJ. Bradykinin B2 Receptor Does Not Contribute to Blood Pressure Lowering during AT1 Receptor Blockade. Journal Of Pharmacology And Experimental Therapeutics 2006, 320: 1261-1267. PMID: 17182977, DOI: 10.1124/jpet.106.117259.Peer-Reviewed Original ResearchConceptsPlasma renin activityHoe 140Endogenous bradykininReceptor blockadeBaseline plasma renin activityBlood pressure-lowering effectAT1 receptor blockadeSalt-depleted subjectsBlood pressure loweringBlood pressure responseEffect of angiotensinPressure-lowering effectAngiotensin I/Heart rate responseReceptor-independent mechanismD-Arg-ArgBradykinin B2 receptorPRA responseRenin activityChronic treatmentPlasma cGMPPressure loweringB2 receptorsEndocrine responsesHeart rate