2007
Regional differences in the functional and biochemical properties of endothelin receptor subtypes in the rabbit prostatic urethra
Wada Y, Takahashi W, Latifpour J, Yamada, Kai N, Honda J, Nakanishi J, Weiss RM. Regional differences in the functional and biochemical properties of endothelin receptor subtypes in the rabbit prostatic urethra. BJU International 2007, 100: 430-437. PMID: 17559559, DOI: 10.1111/j.1464-410x.2007.07064.x.Peer-Reviewed Original ResearchConceptsContractile responseET receptor subtypesMaximum contractile responseProstatic urethraReceptor subtypesET-3ET receptorsET-1High-affinity binding sitesConcentration-dependent contractile responsesSubtype specificityEndothelin receptor subtypesSmooth muscle stripsReceptor-binding techniquesRegion-specific differencesEndothelin receptorsMuscle stripsRegional differencesDistal regionUrethraSubtypesReceptorsBQ123Low affinity constantInhibition experiments
2006
Age Related Changes in the Functional, Biochemical and Molecular Properties of α1-Adrenoceptors in the Rat Genitourinary Tract
Yono M, Foster HE, Weiss RM, Latifpour J. Age Related Changes in the Functional, Biochemical and Molecular Properties of α1-Adrenoceptors in the Rat Genitourinary Tract. Journal Of Urology 2006, 176: 1214-1219. PMID: 16890728, DOI: 10.1016/j.juro.2006.04.038.Peer-Reviewed Original ResearchConceptsRat genitourinary tractLower urinary tract symptomsUrinary tract symptomsBenign prostatic hyperplasiaAdrenoceptor antagonistGenitourinary tractTract symptomsBladder baseProstatic hyperplasiaDorsolateral prostateYoung ratsIsolated muscle bathMaximum contractile responseTranscriptase-polymerase chain reaction techniqueRadioligand receptor bindingReverse transcriptase-polymerase chain reaction techniqueSignificant age-dependent differencesAge-dependent differencesAge related changesHigher body weightAge related differencesContractile responseAdrenoceptor densityAdrenoceptor subtypesBladder domePacemaker activity in the upper urinary tract
Weiss RM, Tamarkin FJ, Wheeler MA. Pacemaker activity in the upper urinary tract. Journal Of Smooth Muscle Research 2006, 42: 103. PMID: 17099294, DOI: 10.1540/jsmr.42.103.Peer-Reviewed Original ResearchConceptsSmooth muscle cellsTypical smooth muscle cellsMuscle cellsUreteral peristalsisCapsaicin-sensitive sensory afferentsAlpha-smooth muscle actinNormal ureteral peristalsisUpper urinary tractUreteral peristaltic activityUrinary collecting systemTyrosine kinase receptorsSensory afferentsUrinary tractEndogenous releasePeristaltic activityPacemaker activityMuscle actinAction potentialsPacemaker siteC-kitPacemaker cellsProximal portionCollecting systemSparse immunoreactivityElectrical activity
2005
Regulation of cyclic nucleotides in the urinary tract
Wheeler MA, Ayyagari RR, Wheeler GL, Weiss RM. Regulation of cyclic nucleotides in the urinary tract. Journal Of Smooth Muscle Research 2005, 41: 1. PMID: 15855736, DOI: 10.1540/jsmr.41.1.Peer-Reviewed Original ResearchConceptsUrinary tractRelaxation responseLow compliance bladderSmooth muscle functionG proteinsCyclic AMP productionStimulatory G proteinCyclic nucleotide levelsG protein isoformsUrge incontinenceTreatment optionsProstate cancerMuscle functionDisease processFamily of phosphodiesterasesSpecific PDE inhibitorsAMP productionPDE inhibitorsBladderAdenylyl cyclasePDE isoformsTractPharmacological potentialCancerPDE expression
2003
Developmental changes in the functional, biochemical and molecular properties of rat bladder endothelin receptors
Afiatpour P, Latifpour J, Takahashi W, Yono M, Foster HE, Ikeda K, Pouresmail M, Weiss RM. Developmental changes in the functional, biochemical and molecular properties of rat bladder endothelin receptors. Naunyn-Schmiedeberg's Archives Of Pharmacology 2003, 367: 462-472. PMID: 12700883, DOI: 10.1007/s00210-003-0715-6.Peer-Reviewed Original ResearchMeSH KeywordsAgingAnimalsAutoradiographyBinding SitesEndothelin-1Gene ExpressionIodine RadioisotopesMuscle ContractionMuscle, SmoothRadioligand AssayRatsRats, Inbred F344Receptor, Endothelin AReceptor, Endothelin BReverse Transcriptase Polymerase Chain ReactionRNA, MessengerTime FactorsUrinary BladderConceptsETA receptor subtypeSmooth muscle layerReceptor subtypesRat detrusorEndothelin receptorsET receptorsET-1Muscle layerSelective ETA receptor antagonistET receptor systemLarger contractile responsesTotal ET receptorsReceptor subtype mRNAsETA receptor antagonistETB receptor subtypesReal-time reverse transcription-polymerase chain reactionMuscle bath techniqueBladder smooth muscleReverse transcription-polymerase chain reactionTranscription-polymerase chain reactionAge-dependent decreaseAge-dependent alterationsReal-time RT-PCRContractile responseSubtype mRNAs
2000
AGE-RELATED CHANGES IN CONTRACTILE RESPONSES OF RABBIT LOWER URINARY TRACT TO ENDOTHELIN
WADA Y, LATIFPOUR J, SANEMATSU H, AFIATPOUR P, WANG Z, SAITO M, NISHI K, WEISS R. AGE-RELATED CHANGES IN CONTRACTILE RESPONSES OF RABBIT LOWER URINARY TRACT TO ENDOTHELIN. Journal Of Urology 2000, 164: 806-813. PMID: 10953160, DOI: 10.1097/00005392-200009010-00054.Peer-Reviewed Original ResearchConceptsRabbit lower urinary tractSmooth muscle layerContractile responseLower urinary tractMonth-old rabbitsBladder domeUrinary tractET receptorsET-1Muscle layerMuscle stripsReceptor antagonistOld rabbitsReceptor subtypesMonths old male rabbitsSelective ETA receptor antagonistSelective ETB receptor antagonistMammalian urinary tractMediation of contractionSignificant contractile responseUrethral muscle stripsMaximal contractile responseET receptor subtypesETA receptor antagonistMaximum contractile responseAlterations in G-proteins and beta-adrenergic responsive adenylyl cyclase in rat urinary bladder during aging.
Derweesh I, Wheeler M, Weiss R. Alterations in G-proteins and beta-adrenergic responsive adenylyl cyclase in rat urinary bladder during aging. Journal Of Pharmacology And Experimental Therapeutics 2000, 294: 969-74. PMID: 10945848.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine Diphosphate RiboseAdenylate Cyclase ToxinAdenylyl CyclasesAdrenergic beta-AgonistsAgingAnimalsBlotting, WesternCarbazolesColforsinCyclic AMPCyclic AMP-Dependent Protein KinasesEnzyme InhibitorsGTP-Binding ProteinsIndolesIsoproterenolMuscle, SmoothPertussis ToxinPyrrolesRatsReceptors, Adrenergic, betaUrinary BladderVirulence Factors, BordetellaConceptsPertussis toxin-catalyzed ADP-ribosylationToxin-catalyzed ADP-ribosylationRat bladderPertussis toxin-sensitive G proteinToxin-sensitive G proteinResponses of bladdersRat urinary bladderAdenylyl cyclaseTreatment of bladderBeta-adrenergic stimulationADP-ribosylationG proteinsAdenylyl cyclase activityResponsive adenylyl cyclaseAge-dependent declineWestern blot analysisG-protein contentUrinary bladderPertussis toxinBladderIsoproterenol stimulationRelaxation responseCyclase activityFunctional activityBlot analysisAGE-RELATED CHANGES IN CONTRACTILE RESPONSES OF RABBIT LOWER URINARY TRACT TO ENDOTHELIN
WADA Y, LATIFPOUR J, SANEMATSU H, AFIATPOUR P, WANG Z, SAITO M, NISHI K, WEISS R. AGE-RELATED CHANGES IN CONTRACTILE RESPONSES OF RABBIT LOWER URINARY TRACT TO ENDOTHELIN. Journal Of Urology 2000, 164: 806-813. DOI: 10.1016/s0022-5347(05)67319-3.Peer-Reviewed Original ResearchConceptsRabbit lower urinary tractSmooth muscle layerContractile responseLower urinary tractMonth-old rabbitsBladder domeUrinary tractET receptorsET-1Muscle layerMuscle stripsReceptor antagonistOld rabbitsReceptor subtypesMonths old male rabbitsSelective ETA receptor antagonistSelective ETB receptor antagonistMammalian urinary tractMediation of contractionSignificant contractile responseUrethral muscle stripsMaximal contractile responseET receptor subtypesETA receptor antagonistMaximum contractile response
1997
Muscarinic Receptor Subtypes and Receptor‐Coupled Phosphatidylinositol Hydrolysis in Rat Bladder Smooth Muscle
Mimata H, Nomura Y, Emoto A, Latifpour J, Wheeler M, Weiss R. Muscarinic Receptor Subtypes and Receptor‐Coupled Phosphatidylinositol Hydrolysis in Rat Bladder Smooth Muscle. International Journal Of Urology 1997, 4: 591-596. PMID: 9477190, DOI: 10.1111/j.1442-2042.1997.tb00315.x.Peer-Reviewed Original ResearchConceptsRat bladder smooth muscleBladder smooth muscleMuscarinic receptor subtypesSmooth muscleM3 receptorsReceptor subtypesPI hydrolysisCarbachol stimulationBladder smooth muscle contractionPhosphatidylinositol hydrolysisN-methylpiperidine methiodideRat urinary bladderSubtype-specific antagonistsSmooth muscle contractionProduction of IP3Expression of mRNAContractile responseUrinary bladderSpecific antagonistMuscle contractionBasal levelsInhibitory effectSubtypesReceptorsMuscleAge-dependent changes in particulate and soluble guanylyl cyclase activities in urinary tract smooth muscle
Wheeler M, Pontari M, Dokita S, Nishimoto T, Cho Y, Hong K, Weiss R. Age-dependent changes in particulate and soluble guanylyl cyclase activities in urinary tract smooth muscle. Molecular And Cellular Biochemistry 1997, 169: 115-124. PMID: 9089638, DOI: 10.1023/a:1006823611864.Peer-Reviewed Original ResearchMeSH KeywordsAgingAnimalsAtrial Natriuretic FactorCyclic GMPGuanylate CyclaseGuinea PigsMaleMuscle, SmoothNitroprussideUrinary TractConceptsSoluble guanylyl cyclase activityAdult guinea pigsGuanylyl cyclase activityCyclase activityBladder domeSodium nitroprussideGuinea pigsUrinary tract smooth muscleGuanylyl cyclaseAtrial natriuretic factorParticulate guanylyl cyclaseAge-dependent changesAge-specific differencesUrinary tractNatriuretic factorSmooth muscleUreterUrethraRelaxation responseBladderInduced activationNitroprussideTissueRank orderAgeEvidence for the Presence of Regional Differences in the Subtype Specificity of Muscarinic Receptors in Rabbit Lower Urinary Tract
Mutoh S, Latifpour J, Saito M, Weiss R. Evidence for the Presence of Regional Differences in the Subtype Specificity of Muscarinic Receptors in Rabbit Lower Urinary Tract. Journal Of Urology 1997, 157: 717-721. PMID: 8996405, DOI: 10.1016/s0022-5347(01)65257-1.Peer-Reviewed Original ResearchConceptsCarbachol-induced contractile responsesBladder baseContractile responseBladder domeMuscarinic antagonistMuscarinic receptorsUrinary tractReceptor subtypesRabbit Lower Urinary TractSubtype-selective muscarinic antagonistsSubtype specificityContractile response curvesM2 receptor subtypeM3 receptor subtypeLower Urinary TractMuscarinic cholinergic receptorsMuscarinic cholinergic antagonistSelective muscarinic antagonistsConcentrations of carbacholTerms of efficacyCholinergic antagonistsCholinergic receptorsPA2 valuesAntagonist affinityUrethra
1995
Effect of Carbachol and Norepinephrine on Phosphatidyl Inositol Hydrolysis and Cyclic Amp Levels in Guinea Pig Urinary Tract
Wheeler M, Martin T, Weiss R. Effect of Carbachol and Norepinephrine on Phosphatidyl Inositol Hydrolysis and Cyclic Amp Levels in Guinea Pig Urinary Tract. Journal Of Urology 1995, 153: 2044-2049. PMID: 7752391, DOI: 10.1016/s0022-5347(01)67399-3.Peer-Reviewed Original ResearchConceptsPhosphatidyl inositol hydrolysisPI hydrolysisCyclic AMP levelsCAMP levelsBladder domeAMP levelsUrinary tract functionEffect of carbacholGuinea-pig ureterAgonist-induced changesBasal cAMP levelsUrinary tractMuscarinic cholinergicTract functionSecond messenger systemsCarbacholNorepinephrinePig ureterSustained increaseUreterUrethraSecond messenger levelsMessenger systemsForskolinTransitory increaseAge-dependent Alterations in beta-adrenergic Responsiveness of Rat Detrusor Smooth Muscle
Nishimoto T, Latifpour J, Wheeler M, Yoshida M, Weiss R. Age-dependent Alterations in beta-adrenergic Responsiveness of Rat Detrusor Smooth Muscle. Journal Of Urology 1995, 153: 1701-1705. PMID: 7715014, DOI: 10.1016/s0022-5347(01)67508-6.Peer-Reviewed Original ResearchConceptsElectrical field stimulationMaximum relaxant responseBeta-adrenergic receptorsMuscle stripsRelaxant responsesRelaxant effectTonic contractionMaximal KCl-induced contractionRat detrusor smooth muscleAge groupsMale Fischer 344 ratsDetrusor muscle stripsEFS-induced contractionsKCl-induced contractionBeta-adrenergic responsivenessDetrusor smooth muscleFischer 344 ratsBeta-adrenergic stimulationAge-dependent alterationsAge-related decreaseCyclic AMP productionDibutyryl cyclic AMPRat detrusorPhasic contractionsBladder detrusor
1994
Involvement of nitric oxide and cyclic GMP in rabbit urethral relaxation
Dokita S, Smith S, Nishimoto T, Wheeler M, Weiss R. Involvement of nitric oxide and cyclic GMP in rabbit urethral relaxation. European Journal Of Pharmacology 1994, 266: 269-275. PMID: 7513645, DOI: 10.1016/0922-4106(94)90136-8.Peer-Reviewed Original ResearchConceptsNitric oxide synthase activityTransmural nerve stimulationOxide synthase activityRabbit urethraNerve stimulationNOS activityL-arginineSoluble nitric oxide synthaseNitric oxide synthase inhibitorRelaxation responseNitric oxideCyclic GMPOxide synthase inhibitorNitric oxide synthaseCyclic GMP levelsUrethral relaxationNG-nitroRank orderOxide synthaseSynthase activityNG-methylSynthase inhibitorElectrical stimulationUrethraSame rank order
1993
Age-related changes in Ca2+ channel antagonist receptors in rabbit lower urinary tract
Yoshida M, Latifpour J, Weiss R. Age-related changes in Ca2+ channel antagonist receptors in rabbit lower urinary tract. European Journal Of Pharmacology 1993, 232: 159-167. PMID: 8385616, DOI: 10.1016/0014-2999(93)90769-e.Peer-Reviewed Original ResearchConceptsLower urinary tractBladder baseBladder domeUrinary tractChannel antagonistsRabbit lower urinary tractBay K 8644Channel antagonist receptorsAge-dependent changesDensity of Ca2Age-related changesAntagonist binding sitesReceptor densityPharmacological profileAntagonist receptorsRabbit urethraUrethraAge groupsBmax valuesDays rabbitsAntagonistTractWeeksRank orderBinding sites
1992
Evidence for the presence of regional differences in the calcium antagonist receptors in lower urinary tract smooth muscle
Latifpour J, Yoshida M, Weiss R. Evidence for the presence of regional differences in the calcium antagonist receptors in lower urinary tract smooth muscle. Naunyn-Schmiedeberg's Archives Of Pharmacology 1992, 345: 679-687. PMID: 1386146, DOI: 10.1007/bf00164583.Peer-Reviewed Original ResearchAge-related changes in calcium antagonist receptors in rabbit ureter.
Yoshida M, Latifpour J, Weiss R. Age-related changes in calcium antagonist receptors in rabbit ureter. Neonatology 1992, 18: 100-7. PMID: 1483355, DOI: 10.1159/000480603.Peer-Reviewed Original Research
1991
Pharmacological characterization of alpha adrenergic receptors in the young and old female rabbit urethra.
Yoshida M, Latifpour J, Nishimoto T, Weiss R. Pharmacological characterization of alpha adrenergic receptors in the young and old female rabbit urethra. Journal Of Pharmacology And Experimental Therapeutics 1991, 257: 1100-8. PMID: 1675287.Peer-Reviewed Original ResearchConceptsConcentration-response curvesFemale rabbit urethraContractile responseAdrenergic receptorsRabbit urethraAge groupsAlpha-2 adrenergic receptorsED50 valuesEmax valuesConcentration-dependent contractionsMaximum contractile responsePhenylephrine-induced contractionAlpha-adrenergic receptorsAlpha 1B subtypeMuscle bath techniqueYounger age groupsAge-dependent differencesPharmacological characterizationClonidinePharmacological characteristicsOxymetazolinePhenylephrineNorepinephrineFree bufferAlpha 1NG-nitro-L-arginine inhibits non-adrenergic, non-cholinergic relaxation in rabbit urethral smooth muscle
Dokita S, Morgan W, Wheeler M, Yoshida M, Latifpour J, Weiss R. NG-nitro-L-arginine inhibits non-adrenergic, non-cholinergic relaxation in rabbit urethral smooth muscle. Life Sciences 1991, 48: 2429-2436. PMID: 1675415, DOI: 10.1016/0024-3205(91)90377-n.Peer-Reviewed Original ResearchConceptsElectrical field stimulationRelaxation responseNG-nitroField stimulationL-arginineSelective cyclic GMP phosphodiesterase inhibitorNitric oxideNon-cholinergic relaxationRabbit urethral smooth muscleNon-cholinergic nervesUrethral smooth muscleUrethral smooth muscle stripsSmooth muscle stripsL-arginine inhibitsSoluble guanylate cyclaseNitric oxide biosynthesisCyclic GMP phosphodiesterase inhibitorMuscle stripsSmooth musclePhosphodiesterase inhibitorGuanylate cyclaseCyclic GMPStimulationInhibitorsResponse
1990
Autonomic receptors in urinary tract: sex and age differences.
Latifpour J, Kondo S, O'Hollaren B, Morita T, Weiss R. Autonomic receptors in urinary tract: sex and age differences. Journal Of Pharmacology And Experimental Therapeutics 1990, 253: 661-7. PMID: 2338651.Peer-Reviewed Original ResearchConceptsAlpha-2 adrenergic receptorsBladder domeBladder baseBeta-adrenergic receptorsAdrenergic receptorsCholinergic receptorsMuscarinic receptorsUrinary tractAlpha-2 adrenergic receptor densityLower urinary tract smooth muscleUrinary tract smooth muscleRabbit bladder baseAlpha 2A subtypeMuscarinic cholinergic receptorsAdrenergic receptor densityLower urinary tractSelective adrenergic agonistsAdult rat cortexNeonatal rat lungBeta-2 adrenergic receptorsAutonomic receptorsAge-related differencesRat cortexAdrenergic agonistsMale urethra