2023
Weight Loss-Independent Effect of Liraglutide on Insulin Sensitivity in Individuals With Obesity and Prediabetes.
Mashayekhi M, Nian H, Mayfield D, Devin J, Gamboa J, Yu C, Silver H, Niswender K, Luther J, Brown N. Weight Loss-Independent Effect of Liraglutide on Insulin Sensitivity in Individuals With Obesity and Prediabetes. Diabetes 2023, 73: 38-50. PMID: 37874653, PMCID: PMC10784656, DOI: 10.2337/db23-0356.Peer-Reviewed Original ResearchConceptsEndogenous GLP-1Glucagon-like peptide-1 receptor agonistsPeptide-1 receptor agonistsImproved insulin sensitivityInsulin sensitivityGLP-1GLP-1RGlucagon levelsGlucose levelsMatsuda indexWeight lossHypocaloric dietPostprandial glucoseInhibitor sitagliptinReceptor agonistMetabolic effectsDiet-induced weight lossDipeptidyl peptidase-4 inhibitor sitagliptinGLP-1R agonist liraglutideWeight loss-independent effectsDPP-4 inhibitor sitagliptinDipeptidyl peptidase-4 inhibitionPeptidase-4 inhibitionMixed meal testGLP-1R antagonist
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
2019
Sitagliptin Decreases Visceral Fat and Blood Glucose in Women With Polycystic Ovarian Syndrome
Devin JK, Nian H, Celedonio JE, Wright P, Brown NJ. Sitagliptin Decreases Visceral Fat and Blood Glucose in Women With Polycystic Ovarian Syndrome. The Journal Of Clinical Endocrinology & Metabolism 2019, 105: dgz028. PMID: 31529097, PMCID: PMC7947776, DOI: 10.1210/clinem/dgz028.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultBiomarkersBlood GlucoseCross-Over StudiesDipeptidyl Peptidase 4Dipeptidyl-Peptidase IV InhibitorsDouble-Blind MethodFemaleFollow-Up StudiesGlucose Tolerance TestHuman Growth HormoneHumansIntra-Abdominal FatMiddle AgedPolycystic Ovary SyndromePrognosisSitagliptin PhosphateYoung AdultConceptsOral glucose tolerance testPolycystic ovarian syndromeVisceral adiposityVascular functionGrowth hormoneOvarian syndromeGH secretionGlucagon-like peptide-1Increased visceral adiposityMaximal glucose responseOvernight GH secretionOvernight growth hormoneEarly insulin secretionGlucose tolerance testVenous samplingCrossover studyVisceral fatCrossover treatmentTolerance testBlood glucoseDPP4 inhibitionInsulin secretionPeak glucoseGlucose levelsPeptide-1
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
2014
Substance P Increases Sympathetic Activity During Combined Angiotensin-Converting Enzyme and Dipeptidyl Peptidase-4 Inhibition
Devin JK, Pretorius M, Nian H, Yu C, Billings FT, Brown NJ. Substance P Increases Sympathetic Activity During Combined Angiotensin-Converting Enzyme and Dipeptidyl Peptidase-4 Inhibition. Hypertension 2014, 63: 951-957. PMID: 24516103, PMCID: PMC3984385, DOI: 10.1161/hypertensionaha.113.02767.Peer-Reviewed Original ResearchMeSH KeywordsAdultAngiotensin-Converting Enzyme InhibitorsBlood PressureBradykininCross-Over StudiesDipeptidyl Peptidase 4Double-Blind MethodEnalaprilatEnzyme InhibitorsFemaleHeart RateHumansMaleMiddle AgedNeurotransmitter AgentsNorepinephrinePeptidyl-Dipeptidase APyrazinesSitagliptin PhosphateSubstance PSympathetic Nervous SystemTriazolesVascular ResistanceConceptsDipeptidyl peptidase-4 inhibitionPeptidase-4 inhibitionTissue plasminogen activator releaseSubstance PDipeptidyl peptidase-4Plasminogen activator releaseSympathetic activityPeptidase-4Activator releasePlacebo-controlled crossover studyDipeptidyl peptidase-4 inhibitorsType 2 diabetes mellitusIntra-arterial enalaprilatForearm vascular resistanceForearm blood flowMean arterial pressurePeptidase-4 inhibitorsAngiotensin converting enzymeSubstrates of angiotensinVascular resistanceVasodilator responseArterial pressureBrachial arteryDiabetes mellitusCrossover study
2010
Interactive Hemodynamic Effects of Dipeptidyl Peptidase-IV Inhibition and Angiotensin-Converting Enzyme Inhibition in Humans
Marney A, Kunchakarra S, Byrne L, Brown NJ. Interactive Hemodynamic Effects of Dipeptidyl Peptidase-IV Inhibition and Angiotensin-Converting Enzyme Inhibition in Humans. Hypertension 2010, 56: 728-733. PMID: 20679179, PMCID: PMC3305047, DOI: 10.1161/hypertensionaha.110.156554.Peer-Reviewed Original ResearchMeSH KeywordsAdultAldosteroneAngiotensin-Converting Enzyme InhibitorsBlood GlucoseBlood PressureDiabetes Mellitus, Type 2Dipeptidyl Peptidase 4Dose-Response Relationship, DrugDouble-Blind MethodDrug InteractionsDrug Therapy, CombinationEnalaprilFemaleHeart RateHemodynamicsHumansInsulinMaleMetabolic SyndromeMiddle AgedPeptidyl-Dipeptidase AProspective StudiesPyrazinesRenal CirculationSitagliptin PhosphateSodiumTriazolesConceptsDipeptidyl peptidase IV inhibitionACE inhibitionHypotensive responseHemodynamic effectsBlood pressureHeart rateSerum dipeptidyl peptidase IV activityAngiotensin-Converting Enzyme InhibitionAcute ACE inhibitionVasoconstrictor neuropeptide YBlood pressure responseRenal blood flowSympathetic nervous systemType 2 diabeticsCross-over fashionDipeptidyl peptidase IV inhibitorsDose-dependent effectDipeptidyl peptidase IV activityDose-dependent mannerPeptidase IV inhibitorsPeptidase IV activityMetabolic syndromeNorepinephrine concentrationsIncretin hormonesNeuropeptide YAssociation of angiotensin‐converting enzyme inhibitor‐associated angioedema with transplant and immunosuppressant use
Byrd JB, Woodard‐Grice A, Stone E, Lucisano A, Schaefer H, Yu C, Eyler AE, Salloum NE, Brown NJ. Association of angiotensin‐converting enzyme inhibitor‐associated angioedema with transplant and immunosuppressant use. Allergy 2010, 65: 1381-1387. PMID: 20557296, PMCID: PMC3305268, DOI: 10.1111/j.1398-9995.2010.02398.x.Peer-Reviewed Original ResearchConceptsACE inhibitor-associated angioedemaEnzyme (ACE) inhibitor-associated angioedemaTransplant patientsImmunosuppressant useDipeptidyl peptidase IV activityPeptidase IV activityTransplant statusDPPIV activityCardiac transplant patientsRenal transplant patientsChronic renal failureAssociation of angiotensinEffects of immunosuppressantsIncidence of angioedemaActivity of DPPIVCardiac transplantImmunosuppressant therapyRenal failureConsecutive patientsACE inhibitorsImmunosuppressant agentsAngioedema casesUnivariate analysisAngioedemaSeasonal allergies
2009
Dipeptidyl Peptidase-IV Inhibitor Use Associated With Increased Risk of ACE Inhibitor-Associated Angioedema
Brown NJ, Byiers S, Carr D, Maldonado M, Warner BA. Dipeptidyl Peptidase-IV Inhibitor Use Associated With Increased Risk of ACE Inhibitor-Associated Angioedema. Hypertension 2009, 54: 516-523. PMID: 19581505, PMCID: PMC2758288, DOI: 10.1161/hypertensionaha.109.134197.Peer-Reviewed Original ResearchConceptsACE inhibitorsRisk of angioedemaVildagliptin useDPP-IV inhibitorsComparator-treated patientsEnzyme (ACE) inhibitor-associated angioedemaStudy drug exposureAngiotensin receptor blockersPhase III studyPossible drug-drug interactionsIncidence of angioedemaCase report formsDipeptidyl peptidase IV inhibitorsDrug-drug interactionsDPP-IV inhibitor vildagliptinPathogenesis of angiotensinPeptidase IV inhibitorsAngioedema riskClinical angioedemaReceptor blockersIII studyAbsolute riskAdjudication committeeDPP-IV inhibitionDrug exposure
2007
Dipeptidyl Peptidase IV in Angiotensin-Converting Enzyme Inhibitor–Associated Angioedema
Byrd JB, Touzin K, Sile S, Gainer JV, Yu C, Nadeau J, Adam A, Brown NJ. Dipeptidyl Peptidase IV in Angiotensin-Converting Enzyme Inhibitor–Associated Angioedema. Hypertension 2007, 51: 141-147. PMID: 18025295, PMCID: PMC2749928, DOI: 10.1161/hypertensionaha.107.096552.Peer-Reviewed Original ResearchConceptsEnzyme (ACE) inhibitor-associated angioedemaDipeptidyl peptidase IV activityHistory of angiotensinPeptidase IV activityControl subjectsSubstance PDipeptidyl peptidase IVEnzyme inhibitorsLife-threatening adverse effectsAngiotensin converting enzyme (ACE) inhibitorsEnzyme inhibitionAbsence of angiotensinPrevalence of smokingSera of patientsCase-control studyPeptidase IVSubstrates of angiotensinTissue edemaAssociated angioedemaAminopeptidase P activityVascular permeabilityAngioedemaAngiotensinAminopeptidase N activityAmino-terminal degradationDipeptidyl peptidase IV deficiency increases susceptibility to angiotensin-converting enzyme inhibitor–induced peritracheal edema
Byrd JB, Shreevatsa A, Putlur P, Foretia D, McAlexander L, Sinha T, Does MD, Brown NJ. Dipeptidyl peptidase IV deficiency increases susceptibility to angiotensin-converting enzyme inhibitor–induced peritracheal edema. Journal Of Allergy And Clinical Immunology 2007, 120: 403-408. PMID: 17531305, DOI: 10.1016/j.jaci.2007.04.012.Peer-Reviewed Original ResearchConceptsACE inhibitor-associated angioedemaDPPIV-deficient ratsMagnetic resonance imagingEdema formationSubstance PSerum dipeptidyl peptidase IV activityResonance imagingCaptopril-treated ratsSaline-treated ratsReceptor-dependent mechanismDipeptidyl peptidase IV activityPeptidase IV activityACE inhibitionSerial T2F344 ratsAnimal modelsEdemaAngioedemaDPPIV activityRatsDipeptidyl peptidase activityImpaired degradationSpantideDeficiencyMagnetic resonance
2002
Dipeptidyl Peptidase IV Activity in Patients With ACE-Inhibitor-Associated Angioedema
Lefebvre J, Murphey LJ, Hartert TV, Jiao Shan R, Simmons WH, Brown NJ. Dipeptidyl Peptidase IV Activity in Patients With ACE-Inhibitor-Associated Angioedema. Hypertension 2002, 39: 460-464. PMID: 11882590, DOI: 10.1161/hy0202.103054.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAngioedemaAngiotensin-Converting Enzyme InhibitorsDipeptidyl Peptidase 4FemaleHumansMaleMiddle AgedConceptsDPPIV activityHypertensive volunteersHypertensive subjectsRemote historyAcute ACE inhibitionSerum DPPIV activityUntreated hypertensive controlsUntreated hypertensive subjectsMetabolism of bradykininDipeptidyl peptidase IV activityAcute ACEIChronic ACEiPeptidase IV activityCorticosteroid treatmentHypertensive controlsHypertensive patientsNormotensive volunteersNormotensive controlsACE inhibitorsACE inhibitionSubstance PBradykinin degradationAssociated angioedemaACEIAngioedema