2013
Androgens influence microvascular dilation in PCOS through ET-A and ET-B receptors
Wenner MM, Taylor HS, Stachenfeld NS. Androgens influence microvascular dilation in PCOS through ET-A and ET-B receptors. AJP Endocrinology And Metabolism 2013, 305: e818-e825. PMID: 23921139, PMCID: PMC3798701, DOI: 10.1152/ajpendo.00343.2013.Peer-Reviewed Original ResearchConceptsPolycystic ovary syndromeET-B receptorsMicrovascular dilationHeat-induced vasodilationReceptor inhibitionET-B receptor antagonistGonadotropin-releasing hormone antagonistLaser Doppler flowmetryAndrogen suppressionOvary syndromeVascular dysfunctionHealthy womenT administrationEnhanced vasodilationHormone antagonistReceptor antagonistCutaneous microdialysisDoppler flowmetryTestosterone effectsSubtype receptorsVasodilationDay 8WomenDilationGnRHantMechanisms contributing to low orthostatic tolerance in women: the influence of oestradiol
Wenner MM, Haddadin A, Taylor HS, Stachenfeld NS. Mechanisms contributing to low orthostatic tolerance in women: the influence of oestradiol. The Journal Of Physiology 2013, 591: 2345-2355. PMID: 23401618, PMCID: PMC3650699, DOI: 10.1113/jphysiol.2012.247882.Peer-Reviewed Original ResearchMeSH KeywordsAdultBaroreflexBlood PressureDizzinessEstradiolEstrogensFemaleGonadotropin-Releasing HormoneHeart RateHumansStroke VolumeYoung AdultConceptsLow orthostatic toleranceE2 administrationOrthostatic toleranceVascular resistanceBlood pressureStroke volumeHeart rateGonadotrophin-releasing hormone antagonistLevels of LBNPLower central volumeReproductive hormone productionAdministration of E2Peripheral vascular resistanceBeat blood pressureAutonomic cardiovascular regulationLower stroke volumeLower body negative pressure testHeart rate responseInfluence of oestradiolBaroreflex controlTolerant womenHormone antagonistCardiovascular regulationPeripheral vasoconstrictionAutonomic control
2011
Progesterone enhances adrenergic control of skin blood flow in women with high but not low orthostatic tolerance
Wenner MM, Taylor HS, Stachenfeld NS. Progesterone enhances adrenergic control of skin blood flow in women with high but not low orthostatic tolerance. The Journal Of Physiology 2011, 589: 975-986. PMID: 21173076, PMCID: PMC3060374, DOI: 10.1113/jphysiol.2010.194563.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic AgentsBlood Flow VelocityDose-Response Relationship, DrugFemaleGonadotropin-Releasing HormoneHemodynamicsHumansNorepinephrineOrthostatic IntoleranceProgesteroneSkinYoung AdultConceptsLow orthostatic toleranceHigh orthostatic toleranceOrthostatic toleranceAdrenergic responseAdrenergic responsivenessNitric oxide synthase inhibitor NG-monomethylEndogenous sex hormone productionSynthase inhibitor NG-monomethylSkin blood flow responseBlood flow responseInhibitor NG-monomethylSex hormone productionFemale sex hormonesLower body negative pressure testSkin blood flowGnRH antagonistProgesterone administrationOrthostatic intoleranceNG-monomethylPeripheral αMicrodialysis infusionSex hormonesCyclooxygenase pathwayHT womenAdrenergic control
2010
Greater Exercise Sweating in Obese Women with Polycystic Ovary Syndrome Compared with Obese Controls
STACHENFELD NS, YECKEL CW, TAYLOR HS. Greater Exercise Sweating in Obese Women with Polycystic Ovary Syndrome Compared with Obese Controls. Medicine & Science In Sports & Exercise 2010, 42: 1660-1668. PMID: 20195177, PMCID: PMC3109293, DOI: 10.1249/mss.0b013e3181d8cf68.Peer-Reviewed Original ResearchMeSH KeywordsAdultBody Temperature RegulationEndothelin-1EstradiolExerciseFemaleGonadotropin-Releasing HormoneHumansInsulin ResistanceObesityPolycystic Ovary SyndromeProgesteroneSweatingTestosteroneYoung AdultConceptsPolycystic ovary syndromePCOS groupOvary syndromeControl groupGonadotropin-releasing hormone antagonistObese controlsObese womenAge-predicted HRmaxCore temperature thresholdHormone antagonistTestosterone effectsDay 4GnRHantSweat volumeDay 13Total sweat lossHormone conditionsWomenSweatingE2Sweat lossSyndromeEstradiolTestosteroneThermoregulatory responses
2009
Sex hormone effects on body fluid and sodium regulation in women with and without exercise-associated hyponatremia
Stachenfeld NS, Taylor HS. Sex hormone effects on body fluid and sodium regulation in women with and without exercise-associated hyponatremia. Journal Of Applied Physiology 2009, 107: 864-872. PMID: 19556454, DOI: 10.1152/japplphysiol.91211.2008.Peer-Reviewed Original ResearchConceptsExercise-associated hyponatremiaSodium lossGonadotropin-releasing hormone antagonistPeak oxygen consumptionMin of exerciseHistory of hyponatremiaHigh water intakeGnRH-antFluid retentionHormone antagonistProgesterone exposureEndurance exerciseDay 4Hormone effectsDay 13HyponatremiaSodium regulationHormone conditionsWomenHypoWater intakeOxygen consumptionProgesteroneExerciseLittle fall
2008
Sex Hormone Effects on Body Fluid Regulation
Stachenfeld NS. Sex Hormone Effects on Body Fluid Regulation. Exercise And Sport Sciences Reviews 2008, 36: 152-159. PMID: 18580296, PMCID: PMC2849969, DOI: 10.1097/jes.0b013e31817be928.Peer-Reviewed Original ResearchMeSH KeywordsArginine VasopressinBody FluidsEstradiolFemaleGonadotropin-Releasing HormoneHomeostasisHumansLeuprolideMaleProgesteroneSaline Solution, HypertonicSodiumThirstWater-Electrolyte Balance
2007
Exogenous oestradiol and progesterone administration does not cause oedema in healthy young women
Stachenfeld NS, Taylor HS. Exogenous oestradiol and progesterone administration does not cause oedema in healthy young women. Clinical Endocrinology 2007, 66: 410-418. PMID: 17302877, DOI: 10.1111/j.1365-2265.2007.02748.x.Peer-Reviewed Original ResearchConceptsExtracellular fluid volumeTranscapillary albumin escape rateGonadotropin-releasing hormone antagonistPmol/Plasma renin activitySerum aldosterone concentrationHealthy young womenAlbumin escape rateRenin activityAldosterone concentrationGnRH antagonistHealthy womenProgesterone administrationExogenous oestradiolIntravascular volumeHormone antagonistProgesterone increaseDay 2Day 5Hormone treatmentOestradiolDay 13Extravascular componentOncotic pressureYoung women
2004
Responses to a Saline Load in Gonadotropin-Releasing Hormone Antagonist-Pretreated Premenopausal Women Receiving Progesterone or Estradiol-Progesterone Therapy
Stachenfeld NS, Keefe DL, Taylor HS. Responses to a Saline Load in Gonadotropin-Releasing Hormone Antagonist-Pretreated Premenopausal Women Receiving Progesterone or Estradiol-Progesterone Therapy. The Journal Of Clinical Endocrinology & Metabolism 2004, 90: 386-394. PMID: 15486051, DOI: 10.1210/jc.2004-0941.Peer-Reviewed Original ResearchMeSH KeywordsAbsorptionAdultAldosteroneEstradiolFemaleGonadotropin-Releasing HormoneHumansMenstrual CyclePremenopauseProgesteroneReninSodiumConceptsSodium regulationOvarian hyperstimulation syndromeEffects of estradiolMin of restImportant clinical implicationsHyperstimulation syndromeSodium excretionGnRH antagonistRenal diseaseSodium loadIsotonic salineClinical implicationsSyndromeReproductive syndromeSubjectsPreeclampsiaGnRHGroupEstradiolProgesteroneAntagonistExcretionDiseaseAdministrationSaline
2003
Effects of estrogen and progesterone administration on extracellular fluid
Stachenfeld NS, Taylor HS. Effects of estrogen and progesterone administration on extracellular fluid. Journal Of Applied Physiology 2003, 96: 1011-1018. PMID: 14660504, DOI: 10.1152/japplphysiol.01032.2003.Peer-Reviewed Original ResearchMeSH KeywordsAdultEstrogensExtracellular FluidFemaleGonadotropin-Releasing HormoneHumansLuteal PhasePlasma VolumeProgesteroneConceptsGnRH antagonist administrationExtracellular fluid volumeGnRH antagonistEffects of estrogenAntagonist administrationPlasma volumeTranscapillary escape rateGonadotropin-releasing hormoneExtracellular fluidHealthy womenProgesterone administrationECFV expansionGanirelix acetateEndogenous estrogensStrong negative predictorDay 2Day 5Pg/AntagonistEstrogenDay 12Plasma compartmentCapillary endotheliumAdministrationProgesteroneOestrogen effects on urine concentrating response in young women
Stachenfeld NS, Taylor HS, Leone CA, Keefe DL. Oestrogen effects on urine concentrating response in young women. The Journal Of Physiology 2003, 552: 869-880. PMID: 12923212, PMCID: PMC2343447, DOI: 10.1113/jphysiol.2003.046920.Peer-Reviewed Original ResearchConceptsAVP infusionRenal sensitivityHormone treatmentDistal tubular sodium reabsorptionRenal free water clearanceRenal fluid retentionTubular sodium reabsorptionFree water clearancePlasma AVP concentrationArginine vasopressin releaseRate of clearancePhysiological rangeOE2 treatmentSodium excretionGnRHa administrationSodium reabsorptionEstrogen effectsEstrogen treatmentFluid retentionLeuprolide acetateWater clearanceRenal waterAVP concentrationVasopressin releaseUrine osmolality
2002
Estrogen effects on osmotic regulation of AVP and fluid balance
Stachenfeld NS, Keefe DL. Estrogen effects on osmotic regulation of AVP and fluid balance. AJP Endocrinology And Metabolism 2002, 283: e711-e721. PMID: 12217888, DOI: 10.1152/ajpendo.00192.2002.Peer-Reviewed Original ResearchMeSH KeywordsAdultArginine VasopressinBody FluidsDrinkingEstrogensFemaleFertility Agents, FemaleGonadotropin-Releasing HormoneHumansLeuprolideProgesteroneSodium, DietaryThirstUrineWater-Electrolyte BalanceConceptsHormone treatmentEstrogen effectsPlasma renin activityFree water clearanceEnd of recoveryIntrarenal effectsRenal sensitivityRenin activitySodium excretionFractional excretionAVP increaseSodium retentionFluid retentionLeuprolide acetateWater clearanceEndogenous estrogensAldosterone stimulationFluid balanceGnRHaNaCl infusionPg/EstrogenAVPProgesteroneExcretion
2001
Estrogen and progesterone effects on transcapillary fluid dynamics
Stachenfeld N, Keefe D, Palter S. Estrogen and progesterone effects on transcapillary fluid dynamics. AJP Regulatory Integrative And Comparative Physiology 2001, 281: r1319-r1329. PMID: 11557642, DOI: 10.1152/ajpregu.2001.281.4.r1319.Peer-Reviewed Original ResearchMeSH KeywordsAdultAtrial Natriuretic FactorBlood PressureBlood VolumeCapillariesCapillary PermeabilityCardiac OutputDrug Administration RoutesEstradiolEstrogensFemaleFertility Agents, FemaleForearmGonadotropin-Releasing HormoneHematocritHot FlashesHumansInfusions, IntravenousLeuprolideProgesteroneStroke VolumeVeinsConceptsCapillary filtration coefficientANP infusionGnRH analoguesPlasma volumeProgesterone effectsTranscapillary fluid dynamicsGonadotropin-releasing hormone analogueLittle systemic effectMin of infusionBaseline plasma volumeHormone administrationPV lossSystemic effectsReproductive functionInfusionAdministrationTreatmentEstrogenPeptide controlFiltration coefficientWeeksWomenANPDaysHematocrit