2013
ETA subtype receptor sensitivity to testosterone contributes to microvascular dysfunction in PCOS
Stachenfeld N, Wenner M, Taylor H. ETA subtype receptor sensitivity to testosterone contributes to microvascular dysfunction in PCOS. The FASEB Journal 2013, 27: 1133.10-1133.10. DOI: 10.1096/fasebj.27.1_supplement.1133.10.Peer-Reviewed Original ResearchPolycystic ovary syndromeCutaneous vascular conductanceHeat-induced vasodilationEndothelium-mediated vasodilationETB receptor antagonistLaser Doppler flowmetryETA blockadeTestosterone contributesEndothelial dysfunctionOvary syndromeVascular conductanceVasoconstrictor toneETA receptorsHormone antagonistReceptor antagonistMicrodialysis infusionSex hormonesDoppler flowmetryReceptor mechanismsReceptor sensitivityDay 8Day 4VasodilationDysfunctionAntagonistTestosterone modulates sodium‐regulating hormones in women with PCOS
Stachenfeld N, Wenner M, Taylor H. Testosterone modulates sodium‐regulating hormones in women with PCOS. The FASEB Journal 2013, 27: 904.5-904.5. DOI: 10.1096/fasebj.27.1_supplement.904.5.Peer-Reviewed Original ResearchPolycystic ovary syndromePlasma renin activityHormone conditionsRenal sodium handlingAldosterone systemRenin activityOvary syndromeSerum aldosteroneSodium handlingHormone antagonistSex hormonesAldosteroneDay 8Day 4Sodium regulationGnRHantWomenTestosteroneHormoneHyperandrogenismGonadotropinSyndromeAntagonistKidney
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 ResearchConceptsPolycystic ovary syndromePCOS groupOvary syndromeControl groupGonadotropin-releasing hormone antagonistObese controlsObese womenAge-predicted HRmaxCore temperature thresholdHormone antagonistTestosterone effectsDay 4GnRHantSweat volumeDay 13Total sweat lossHormone conditionsWomenSweatingE2Sweat lossSyndromeEstradiolTestosteroneThermoregulatory responsesPeripheral 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
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 fallFEMALE REPRODUCTIVE HORMONE EFFECTS ON SKIN VESSEL ADRENERGIC RESPONSIVENESS IN WOMEN WITH LOW AND HIGH ORTHOSTATIC TOLERANCE.
Stachenfeld N, Hinds K, Taylor H. FEMALE REPRODUCTIVE HORMONE EFFECTS ON SKIN VESSEL ADRENERGIC RESPONSIVENESS IN WOMEN WITH LOW AND HIGH ORTHOSTATIC TOLERANCE. The FASEB Journal 2009, 23: 968.2-968.2. DOI: 10.1096/fasebj.23.1_supplement.968.2.Peer-Reviewed Original ResearchHigh orthostatic toleranceCumulative stress indexL-NMMAAdrenergic responsivenessOrthostatic toleranceLower body negative pressureReproductive hormone effectsNitric oxide mechanismBody negative pressureLaser Doppler flowmetrySkin blood flowStimulus-response curvesNorepinephrine infusionHormone antagonistDoppler flowmetryBlood flowDay 4Hormone effectsDay 13GnRHProgesteroneOxide mechanismWomenEstradiolResponsiveness
2006
Effects of estradiol and medroxyprogesterone acetate on flow mediated dilation in young women
Meendering J, Torgrimson B, Kaplan P, Stachenfeld N, Minson C. Effects of estradiol and medroxyprogesterone acetate on flow mediated dilation in young women. The FASEB Journal 2006, 20: a301-a301. DOI: 10.1096/fasebj.20.4.a301-c.Peer-Reviewed Original ResearchMedroxyprogesterone acetateDay 5Day 10Gonadotropin-releasing hormone antagonistBaseline brachial artery diameterYoung womenEndothelial-dependent vasodilationBrachial artery diameterPreliminary dataMedical Research FoundationIndependent vasodilationDependent vasodilationBrachial arteryNitroglycerin administrationGnRHa administrationMPA administrationArtery diameterHormone antagonistEndogenous estrogensGnRHaVessel responsivenessDay 4Hormone treatmentAcute affectsE2