2021
Arrhythmia Mechanism and Dynamics in a Humanized Mouse Model of Inherited Cardiomyopathy Caused by Phospholamban R14del Mutation
Raad N, Bittihn P, Cacheux M, Jeong D, Ilkan Z, Ceholski D, Kohlbrenner E, Zhang L, Cai CL, Kranias EG, Hajjar RJ, Stillitano F, Akar FG. Arrhythmia Mechanism and Dynamics in a Humanized Mouse Model of Inherited Cardiomyopathy Caused by Phospholamban R14del Mutation. Circulation 2021, 144: 441-454. PMID: 34024116, PMCID: PMC8456417, DOI: 10.1161/circulationaha.119.043502.Peer-Reviewed Original ResearchConceptsHuman PLNRapid pacingInterventricular activation delayHumanized mouse modelAction potential prolongationLocal conduction blockSteep repolarization gradientsArrhythmogenic featuresMacroreentrant circuitHemodynamic changesElectric remodelingElectrophysiological remodelingRight ventricleVentricular tachycardiaPotential prolongationSudden deathConduction blockMouse modelAdult knockArrhythmia susceptibilityAdrenergic stimulationStructural remodelingArrhythmogenic phenotypeArrhythmia mechanismsRegulatory protein phospholamban
2013
MRP4 and MRP5 in the ciliary epithelium of the eye and their potential role in regulating extracellular cAMP levels
Hotchkiss A, Pasumarthi K, Coca‐Prados M, Pelis R. MRP4 and MRP5 in the ciliary epithelium of the eye and their potential role in regulating extracellular cAMP levels. The FASEB Journal 2013, 27: 732.3-732.3. DOI: 10.1096/fasebj.27.1_supplement.732.3.Peer-Reviewed Original ResearchMultidrug resistance-associated proteinCAMP levelsExtracellular cAMP levelsCiliary epitheliumAqueous humor dynamicsResistance-associated proteinCiliary epithelial cell lineHuman ciliary bodyCE cellsEpithelial cell lineMRP inhibitorsCiliary bodyAdrenergic stimulationIntracellular cAMPIntracellular accumulationPotential roleCell linesIndomethacinFurosemideMRP4Cyclic nucleotidesMRP5EpitheliumIbuprofenCells
2010
Peripheral microvascular responses to norepinephrine in women with orthostatic intolerance
Wenner M, Taylor H, Stachenfeld N. Peripheral microvascular responses to norepinephrine in women with orthostatic intolerance. The FASEB Journal 2010, 24: 991.17-991.17. DOI: 10.1096/fasebj.24.1_supplement.991.17.Peer-Reviewed Original ResearchCumulative stress indexVasoconstrictor responsesAdrenergic responseMaximal lower body negative pressureLower body negative pressurePeripheral microvascular responseEffects of estradiolBody negative pressureFemale sex hormonesSkin blood flowEndogenous E2GnRH antagonistNE infusionDaily administrationMicrovascular responsesCutaneous microvasculatureOrthostatic intoleranceOrthostatic toleranceSex hormonesBlood flowSkin microvasculatureAdrenergic stimulationDay 4Hormone treatmentDay 13
1998
Novel paracrine signaling mechanism in the ocular ciliary epithelium
Hirata K, Nathanson M, Sears M. Novel paracrine signaling mechanism in the ocular ciliary epithelium. Proceedings Of The National Academy Of Sciences Of The United States Of America 1998, 95: 8381-8386. PMID: 9653195, PMCID: PMC20984, DOI: 10.1073/pnas.95.14.8381.Peer-Reviewed Original ResearchConceptsNonpigmented cell layerCiliary epithelial bilayerAlpha1-adrenergic antagonist prazosinBeta-adrenergic antagonist propranololPigmented cell layerGap junction blocker octanolBeta-adrenergic agonist isoproterenolCell layerEpithelial bilayerEndogenous adenylyl cyclaseGap junctionsCell spreadOcular ciliary epitheliumAntagonist prazosinAqueous humor secretionAntagonist propranololCiliary bodyAgonist isoproterenolParacrine pathwaysAdrenergic stimulationNovel paracrineCytosolic Ca2Lucifer YellowCiliary epitheliumAdenylyl cyclase
1989
Chloride conductance regulated by cyclic AMP-dependent protein kinase in cardiac myocytes
Bahinski A, Nairn A, Greengard P, Gadsby D. Chloride conductance regulated by cyclic AMP-dependent protein kinase in cardiac myocytes. Nature 1989, 340: 718-721. PMID: 2475783, DOI: 10.1038/340718a0.Peer-Reviewed Original ResearchConceptsCyclic AMP-dependent protein kinaseAMP-dependent protein kinaseProtein kinaseChloride ion currentCatalytic subunitRegulatory proteinsKinase activationIon channelsKinaseChloride conductanceCalcium entrySingle-channel currentsCardiac myocytesCellsHeart cellsPhosphorylationAction potential repolarizationConductanceSubunitsProteinIntracellular dialysisMyocytesRegulationChannel currentsAdrenergic stimulation
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