2018
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
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
2015
A prevalent caveolin-1 gene variant is associated with the metabolic syndrome in Caucasians and Hispanics
Baudrand R, Goodarzi MO, Vaidya A, Underwood PC, Williams JS, Jeunemaitre X, Hopkins PN, Brown N, Raby BA, Lasky-Su J, Adler GK, Cui J, Guo X, Taylor KD, Chen YD, Xiang A, Raffel LJ, Buchanan TA, Rotter JI, Williams GH, Pojoga LH. A prevalent caveolin-1 gene variant is associated with the metabolic syndrome in Caucasians and Hispanics. Metabolism 2015, 64: 1674-1681. PMID: 26475177, PMCID: PMC4641791, DOI: 10.1016/j.metabol.2015.09.005.Peer-Reviewed Original ResearchMeSH KeywordsAdultCaveolin 1Cohort StudiesFemaleGenotypeHispanic or LatinoHumansMaleMetabolic SyndromeMiddle AgedWhite PeopleConceptsMinor allele carriersAllele carriersMetabolic syndromeInsulin resistanceHigher oddsHigher Framingham risk scoreFramingham risk scoreGene variantsNon-obese subjectsMinor allele carrier statusAllele carrier statusHyperPATH cohortLow HDLMetS diagnosisMetS riskObese subjectsMulticenter studyObesity statusSimilar BMIRisk scoreHispanic cohortClinical implicationsHispanic participantsCohortCarrier statusGenetics of Plasminogen Activator Inhibitor-1 (PAI-1) in a Ghanaian Population
White MJ, Kodaman NM, Harder RH, Asselbergs FW, Vaughan DE, Brown NJ, Moore JH, Williams SM. Genetics of Plasminogen Activator Inhibitor-1 (PAI-1) in a Ghanaian Population. PLOS ONE 2015, 10: e0136379. PMID: 26322636, PMCID: PMC4556460, DOI: 10.1371/journal.pone.0136379.Peer-Reviewed Original ResearchConceptsPlasminogen activator inhibitor-1Genetic variantsCircadian clock genesMost genetic studiesCardiovascular disease susceptibilityImportant genetic variantsActivator inhibitor-1Inhibitor-1Clock genesGenetic studiesGenetic effectsDisease susceptibilityArylsulfatase BMajor modulatorNovel associationsLack of overlapGenesPathway effectsMedian PAI-1European descentVariantsGeneticsPopulationSNPsCaucasian population
2013
Genetic variants associated with angiotensin-converting enzyme inhibitor-associated angioedema
Pare G, Kubo M, Byrd JB, McCarty CA, Woodard-Grice A, Teo KK, Anand SS, Zuvich RL, Bradford Y, Ross S, Nakamura Y, Ritchie M, Brown NJ. Genetic variants associated with angiotensin-converting enzyme inhibitor-associated angioedema. Pharmacogenetics And Genomics 2013, 23: 470-478. PMID: 23838604, PMCID: PMC3904664, DOI: 10.1097/fpc.0b013e328363c137.Peer-Reviewed Original ResearchMeSH KeywordsAngioedemaAngiotensin-Converting Enzyme InhibitorsBenzimidazolesBenzoatesBlack or African AmericanDouble-Blind MethodDrug Therapy, CombinationGenome-Wide Association StudyHumansIsoenzymesNeprilysinPolymorphism, Single NucleotideProtein Kinase CProtein Kinase C-thetaProto-Oncogene Proteins c-etsRamiprilRepressor ProteinsTelmisartanWhite People
2012
Polymorphisms in the transcription factor NRF2 and forearm vasodilator responses in humans
Marczak ED, Marzec J, Zeldin DC, Kleeberger SR, Brown NJ, Pretorius M, Lee CR. Polymorphisms in the transcription factor NRF2 and forearm vasodilator responses in humans. Pharmacogenetics And Genomics 2012, 22: 620-628. PMID: 22668754, PMCID: PMC3599320, DOI: 10.1097/fpc.0b013e32835516e5.Peer-Reviewed Original ResearchConceptsForearm vascular resistanceForearm blood flowVariant allele carriersVasodilator responseSodium nitroprussideVascular functionAllele carriersStrain-gauge venous occlusion plethysmographyLower forearm blood flowEndothelial-independent mannerForearm vasodilator responseVenous occlusion plethysmographyWild-type individualsTranscription factor Nrf2Endothelial dysfunctionOcclusion plethysmographyVascular resistanceIncremental dosesCardiovascular diseaseBlood flowG genotypeA polymorphismSignificant associationBasal conditionsFactor Nrf2Polymorphisms in the serum- and glucocorticoid-inducible kinase 1 gene are associated with blood pressure and renin response to dietary salt intake
Rao AD, Sun B, Saxena A, Hopkins PN, Jeunemaitre X, Brown NJ, Adler GK, Williams JS. Polymorphisms in the serum- and glucocorticoid-inducible kinase 1 gene are associated with blood pressure and renin response to dietary salt intake. Journal Of Human Hypertension 2012, 27: 176-180. PMID: 22648267, PMCID: PMC3463709, DOI: 10.1038/jhh.2012.22.Peer-Reviewed Original ResearchMeSH KeywordsAdultBiomarkersBlood PressureChi-Square DistributionEuropeFemaleGene FrequencyGenetic Predisposition to DiseaseHumansHypertensionImmediate-Early ProteinsLinear ModelsLinkage DisequilibriumLogistic ModelsMaleMiddle AgedPhenotypePolymorphism, Single NucleotideProtein Serine-Threonine KinasesReninRenin-Angiotensin SystemSodium Chloride, DietaryUnited StatesWhite PeopleConceptsDietary salt intakeBlood pressureSalt intakeSingle nucleotide polymorphismsHigher systolic blood pressureMeasurement of BPAldosterone system activityRAA system activitySystem activitySystolic blood pressureSalt-sensitive hypertensionSGK1 gene variantGlucocorticoid-inducible kinase 1Non-significant trendNormotensive populationRenin responseEpithelial sodium channelHuman hypertensionGenotype statusStudy populationDistal nephronHypertensionAdditive genetic modelSodium channelsGene variantsCharacterization of Genome-Wide Association-Identified Variants for Atrial Fibrillation in African Americans
Delaney JT, Jeff JM, Brown NJ, Pretorius M, Okafor HE, Darbar D, Roden DM, Crawford DC. Characterization of Genome-Wide Association-Identified Variants for Atrial Fibrillation in African Americans. PLOS ONE 2012, 7: e32338. PMID: 22384221, PMCID: PMC3285683, DOI: 10.1371/journal.pone.0032338.Peer-Reviewed Original Research
2011
The Fok1 vitamin D receptor gene polymorphism is associated with plasma renin activity in Caucasians
Vaidya A, Sun B, Forman JP, Hopkins PN, Brown NJ, Kolatkar NS, Williams GH, Williams JS. The Fok1 vitamin D receptor gene polymorphism is associated with plasma renin activity in Caucasians. Clinical Endocrinology 2011, 74: 783-790. PMID: 21521263, PMCID: PMC3089671, DOI: 10.1111/j.1365-2265.2011.03991.x.Peer-Reviewed Original ResearchConceptsPlasma renin activityVitamin D receptorLow plasma renin activityDietary sodium balanceRenin-angiotensin systemRenin activityFok1 polymorphismSodium balanceVitamin D receptor gene polymorphismsD receptor gene polymorphismsPopulation of hypertensivesReceptor gene polymorphismsFok1 genotypeHyperPATH cohortD deficiencyMultivariable analysisNormotensive individualsVitamin DRenin expressionVDR geneCardiovascular diseaseD receptorHuman studiesGene polymorphismsT allele
2010
Genetic Variation in Soluble Epoxide Hydrolase (EPHX2) Is Associated With Forearm Vasodilator Responses in Humans
Lee CR, Pretorius M, Schuck RN, Burch LH, Bartlett J, Williams SM, Zeldin DC, Brown NJ. Genetic Variation in Soluble Epoxide Hydrolase (EPHX2) Is Associated With Forearm Vasodilator Responses in Humans. Hypertension 2010, 57: 116-122. PMID: 21098312, PMCID: PMC3020911, DOI: 10.1161/hypertensionaha.110.161695.Peer-Reviewed Original ResearchConceptsForearm blood flowVariant allele carriersForearm vasodilator responseForearm vascular resistanceSoluble epoxide hydrolaseVascular resistanceVasodilator responseBlood flowAllele carriersSodium nitroprussideVascular functionStrain-gauge venous occlusion plethysmographyHighest forearm blood flowLower forearm vascular resistanceSignificant associationCytochrome P450-derived epoxyeicosatrienoic acidsEpoxide hydrolaseVenous occlusion plethysmographyCardiovascular disease riskEndothelium-independent mannerWild-type individualsOcclusion plethysmographyPotent vasodilatorEpoxyeicosatrienoic acidsPreclinical modelsThe Relationship between Peroxisome Proliferator-Activated Receptor-γ and Renin: A Human Genetics Study
Underwood PC, Sun B, Williams JS, Pojoga LH, Chamarthi B, Lasky-Su J, Raby BA, Hopkins PN, Jeunemaitre X, Brown NJ, Adler GK, Williams GH. The Relationship between Peroxisome Proliferator-Activated Receptor-γ and Renin: A Human Genetics Study. The Journal Of Clinical Endocrinology & Metabolism 2010, 95: e75-e79. PMID: 20631015, PMCID: PMC2936061, DOI: 10.1210/jc.2010-0270.Peer-Reviewed Original ResearchConceptsPRA levelsPeroxisome proliferator-activated receptor gamma agonistPlasma renin activity levelsProliferator-activated receptor gamma agonistsVolume retentionAfrican-American hypertensivesHigh PRA levelsLow-salt dietRenin activity levelsAngiotensin II infusionMajor allele carriersSingle nucleotide polymorphismsC allele carrier statusReceptor gamma agonistsAllele carrier statusII infusionHypertensive participantsCombined P valueHuman hypertensionGamma agonistsNucleotide polymorphismsAllele carriersPPARgamma agonistsPPARgamma geneRenin
2007
The Bradykinin Type 2 Receptor BE1 Polymorphism and Ethnicity Influence Systolic Blood Pressure and Vascular Resistance
Pretorius MM, Gainer JV, Van Guilder GP, Coelho EB, Luther JM, Fong P, Rosenbaum DD, Malave HA, Yu C, Ritchie MD, Vaughan DE, Brown NJ. The Bradykinin Type 2 Receptor BE1 Polymorphism and Ethnicity Influence Systolic Blood Pressure and Vascular Resistance. Clinical Pharmacology & Therapeutics 2007, 83: 122-129. PMID: 17522594, DOI: 10.1038/sj.clpt.6100250.Peer-Reviewed Original ResearchMeSH KeywordsAdultBlack or African AmericanBlood Flow VelocityBlood PressureBradykininDose-Response Relationship, DrugFemaleForearmGene FrequencyGenotypeHumansInfusions, Intra-ArterialMaleNitroprussidePhenotypePolymorphism, GeneticReceptor, Bradykinin B2Regional Blood FlowVascular ResistanceVasodilator AgentsWhite PeopleConceptsSystolic blood pressureForearm vascular resistanceVascular resistanceBlood pressureEndothelium-independent agonist sodium nitroprussideEndothelium-dependent agonist bradykininIntrabrachial artery infusionsLeft ventricular massBradykinin B2 receptor geneB2 receptor geneNormotensive subjectsVentricular massPulse pressureB2 receptorsAgonist bradykininSodium nitroprussideReceptor geneBradykininGroupPolymorphismInfusionWhite AmericansNitroprussideBaselineBlack Americans
2004
Functional Variant of CYP4A11 20-Hydroxyeicosatetraenoic Acid Synthase Is Associated With Essential Hypertension
Gainer JV, Bellamine A, Dawson EP, Womble KE, Grant SW, Wang Y, Cupples LA, Guo CY, Demissie S, O’Donnell C, Brown NJ, Waterman MR, Capdevila JH. Functional Variant of CYP4A11 20-Hydroxyeicosatetraenoic Acid Synthase Is Associated With Essential Hypertension. Circulation 2004, 111: 63-69. PMID: 15611369, DOI: 10.1161/01.cir.0000151309.82473.59.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAllelesAmino Acid SubstitutionArachidonic AcidBlack PeopleBlood PressureCodonCohort StudiesComorbidityCytochrome P-450 CYP4ACytochrome P-450 Enzyme SystemDNA Mutational AnalysisFemaleGene FrequencyGenetic Predisposition to DiseaseGenetic VariationGenotypeHumansHydroxyeicosatetraenoic AcidsHypertensionIntronsKidneyLauric AcidsMaleMiddle AgedMultifactorial InheritanceMutagenesis, InsertionalMutation, MissensePoint MutationSequence DeletionTennesseeUnited StatesWhite PeopleConceptsArachidonic acidORs of hypertensionBlood pressure controlBody mass indexEndogenous arachidonic acidLarge population databaseFramingham Heart StudySevere hypertensionEssential hypertensionHypertension comorbidityTubular functionHypertensive statusMass indexFunctional variantsHypertensionHeart StudyPressure controlCYP4A11Polygenic determinantsPopulation databaseTargeted disruptionHuman CYP4A11Acid synthaseAssociationSynthase activityThyroid Function and Blood Pressure Homeostasis in Euthyroid Subjects
Gumieniak O, Perlstein TS, Hopkins PN, Brown NJ, Murphey LJ, Jeunemaitre X, Hollenberg NK, Williams GH. Thyroid Function and Blood Pressure Homeostasis in Euthyroid Subjects. The Journal Of Clinical Endocrinology & Metabolism 2004, 89: 3455-3461. PMID: 15240631, DOI: 10.1210/jc.2003-032143.Peer-Reviewed Original ResearchConceptsMean arterial pressureRenal vascular resistanceBlood pressure homeostasisBaseline mean arterial pressureEffective renal plasma flowRenal plasma flowPressure homeostasisThyroid functionVascular resistanceEuthyroid subjectsBlood pressure salt sensitivitySalt sensitivityBlood pressure responseSystemic vascular resistanceAminohippuric acid clearanceLow sodium dietBody mass indexBaseline characteristicsHypertensive subjectsNormotensive subjectsSubclinical hypothyroidismArterial pressureAcid clearanceMass indexEuthyroid individuals
2002
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
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 ResearchA comparison of combinatorial partitioning and linear regression for the detection of epistatic effects of the ACE I/D and PAI‐1 4G/5G polymorphisms on plasma PAI‐1 levels
Moore J, Lamb J, Brown N, Vaughan D. A comparison of combinatorial partitioning and linear regression for the detection of epistatic effects of the ACE I/D and PAI‐1 4G/5G polymorphisms on plasma PAI‐1 levels. Clinical Genetics 2002, 62: 74-79. PMID: 12123491, DOI: 10.1034/j.1399-0004.2002.620110.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 ResearchConceptsForearm 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 Americans
2000
Human β2‐adrenergic receptor polymorphisms: No association with essential hypertension in black or white Americans
Xie H, Stein C, Kim R, Gainer J, Sofowora G, Dishy V, Brown N, Goree R, Haines J, Wood A. Human β2‐adrenergic receptor polymorphisms: No association with essential hypertension in black or white Americans. Clinical Pharmacology & Therapeutics 2000, 67: 670-675. PMID: 10872649, DOI: 10.1067/mcp.2000.106293.Peer-Reviewed Original ResearchConceptsHypertensive subjectsEssential hypertensionGlu27 alleleBeta2-adrenergic receptor genotypesBeta2-adrenergic receptor polymorphismsWhite subjectsReceptor variantsBeta2-adrenergic receptor geneNormotensive white subjectsPresence of hypertensionBlack subjectsHomozygous genotypeBeta2-adrenergic receptorCommon genetic polymorphismsHypertensive groupNormotensive subjectsBlood pressurePopulation-based case-control association studiesVascular responsesCase-control association studyReceptor polymorphismsReceptor genotypeHypertensionReceptor responsesHuman beta2-adrenergic receptor
1999
α1A-Adrenergic receptor polymorphism
Xie H, Kim R, Stein C, Gainer J, Brown N, Wood A. α1A-Adrenergic receptor polymorphism. Pharmacogenetics And Genomics 1999, 9: 651-656. PMID: 10591546, DOI: 10.1097/00008571-199910000-00012.Peer-Reviewed Original ResearchConceptsAlpha1A-ARAfrican AmericansPrevalence of hypertensionPathogenesis of hypertensionAlpha1-adrenergic receptorsAlpha1-AR subtypesVascular smooth muscleCaucasian individualsEthnic differencesVasoconstrictor sensitivityVascular reactivityAlpha1-ARBlood pressureEssential hypertensionHypertensive individualsVascular responsesVascular toneReceptor polymorphismsSmooth muscleHypertensionSignificant intergenotypic differencesPotential roleRestriction fragment length polymorphismAllelic distributionFragment length polymorphismFrequency of functionally important beta-2 adrenoceptor polymorphisms varies markedly among African-American, Caucasian and Chinese individuals.
Xie HG, Stein CM, Kim RB, Xiao ZS, He N, Zhou HH, Gainer JV, Brown NJ, Haines JL, Wood AJ. Frequency of functionally important beta-2 adrenoceptor polymorphisms varies markedly among African-American, Caucasian and Chinese individuals. Pharmacogenetics And Genomics 1999, 9: 511-6. PMID: 10780271.Peer-Reviewed Original ResearchConceptsAfrican American individualsChinese individualsEthnic differencesSeverity of hypertensionDifferent ethnic groupsBeta-2 adrenergic receptorsMarked ethnic differencesEthnic groupsAdrenoceptor polymorphismsBAR agonistsGlu27 polymorphismGly16 alleleGlu27 alleleVascular responsesDisease manifestationsHealthy individualsAdrenergic receptorsCommon polymorphismsMarked interethnic differencesInterethnic differencesHomozygous genotypeGln27Arg16PolymorphismAlterations
1997
Angiotensin II type I Receptor polymorphism in African Americans lower frequency of the C1166 variant
Gainer J, Hunley T, Kon V, Nadeau J, Muldowney J, Brown N. Angiotensin II type I Receptor polymorphism in African Americans lower frequency of the C1166 variant. IUBMB Life 1997, 43: 227-231. PMID: 9315301, DOI: 10.1080/15216549700204001.Peer-Reviewed Original ResearchConceptsC1166 variantAngiotensin II type I receptorAfrican AmericansNormotensive African AmericansType I receptorReceptor polymorphismsAfrican American populationCaucasian subjectsI receptorSubstitution polymorphismCaucasiansAmerican populationHypertensionLow frequencyPolymorphismAmericansVariantsReceptors