2022
Correlations between salivary- and blood-derived gonadal hormone assessments and implications for inclusion of female participants in research studies
Huang T, Howse F, Stachenfeld N, Usselman C. Correlations between salivary- and blood-derived gonadal hormone assessments and implications for inclusion of female participants in research studies. AJP Heart And Circulatory Physiology 2022, 324: h33-h46. PMID: 36426884, DOI: 10.1152/ajpheart.00399.2022.Peer-Reviewed Original ResearchConceptsMenstrual cycleGonadal hormonesFemale participantsVenous blood samplesGonadal hormone fluctuationsPrimary gonadalVascular functionBlood concentrationsCardiovascular diseaseHormone assessmentSerial measurementsHormone fluctuationsHormone monitoringBlood samplesStudy designGold standard measurementHuman physiology researchHormoneInclusion of femalesSalivaryResearch studiesCardiovascular researchersParticipantsFemales
2020
Point: Investigators should control for menstrual cycle phase when performing studies of vascular control that include women
Wenner MM, Stachenfeld NS. Point: Investigators should control for menstrual cycle phase when performing studies of vascular control that include women. Journal Of Applied Physiology 2020, 129: 1114-1116. PMID: 32702264, DOI: 10.1152/japplphysiol.00443.2020.Commentaries, Editorials and Letters
2015
Peripheral Microvascular Vasodilatory Response to Estradiol and Genistein in Women with Insulin Resistance
Wenner MM, Taylor HS, Stachenfeld NS. Peripheral Microvascular Vasodilatory Response to Estradiol and Genistein in Women with Insulin Resistance. Microcirculation 2015, 22: 391-399. PMID: 25996650, PMCID: PMC4506724, DOI: 10.1111/micc.12208.Peer-Reviewed Original ResearchConceptsL-NMMAMicrovascular vasodilationHealthy womenVasodilatory responsivenessLocal cutaneous heatingMicrovascular vasodilatory functionMicrovascular vasodilatory responsesBeat blood pressureHealthy young womenLaser Doppler flowmetryHeat-induced vasodilationMicrovascular responsivenessVascular effectsVasodilatory responseBlood pressureMicrovascular functionVasodilatory functionCutaneous heatingInsulin resistanceCutaneous circulationDoppler flowmetryGEN exposureInteraction of E2VasodilationMicrodialysis perfusion
2013
Mechanisms 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 ResearchConceptsLow 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
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 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 Research
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
2005
Progesterone increases plasma volume independent of estradiol
Stachenfeld NS, Taylor HS. Progesterone increases plasma volume independent of estradiol. Journal Of Applied Physiology 2005, 98: 1991-1997. PMID: 15718411, DOI: 10.1152/japplphysiol.00031.2005.Peer-Reviewed Original ResearchConceptsTranscapillary escape ratePlasma concentrationsPlasma volumeGnRH antagonistECF volumeAdequate plasma volumeAldosterone system stimulationPlasma renin activityGonadotropin-releasing hormoneExtracellular fluid volumeRenin activitySerum aldosteroneAng IIBlood pressureEstrogen administrationSystem stimulationDay 2Day 5Pg/Day 13Fluid regulationPV expansionFluid volumeIndependent effectsProgesterone
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 ResearchConceptsSodium regulationOvarian hyperstimulation syndromeEffects of estradiolMin of restImportant clinical implicationsHyperstimulation syndromeSodium excretionGnRH antagonistRenal diseaseSodium loadIsotonic salineClinical implicationsSyndromeReproductive syndromeSubjectsPreeclampsiaGnRHGroupEstradiolProgesteroneAntagonistExcretionDiseaseAdministrationSaline
2001
Progesterone does not alter osmotic regulation of AVP
Calzone W, Silva C, Keefe D, Stachenfeld N. Progesterone does not alter osmotic regulation of AVP. AJP Regulatory Integrative And Comparative Physiology 2001, 281: r2011-r2020. PMID: 11705788, DOI: 10.1152/ajpregu.2001.281.6.r2011.Peer-Reviewed Original ResearchConceptsHypertonic saline infusionLuteal phaseOral contraceptivesFollicular phaseOsmotic thresholdThirst onsetRenal free water clearanceLow osmotic thresholdFree water clearancePlasma AVP concentrationArginine vasopressin releaseBaseline plasma osmolalityBody water balanceMenstrual cycleMidluteal phaseWater clearanceSaline infusionAVP releaseAVP concentrationMenstrual phaseVasopressin releaseFluid balanceOC treatmentThirst responseCrossover designEstrogen 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
2000
Estrogen modifies the temperature effects of progesterone
Stachenfeld N, Silva C, Keefe D. Estrogen modifies the temperature effects of progesterone. Journal Of Applied Physiology 2000, 88: 1643-1649. PMID: 10797125, DOI: 10.1152/jappl.2000.88.5.1643.Peer-Reviewed Original ResearchConceptsOral contraceptive administrationFollicular phaseLuteal phaseContraceptive administrationBaseline esophageal temperatureOC PFollicular phase levelsMin of exerciseMidluteal menstrual phasesProgestin administrationCore temperature thresholdMenstrual phaseDegrees C. SubjectsEsophageal temperatureEstrogenC. SubjectsAdministrationPassive heatingProgestinsCore temperatureExercisePrevious findingsProgesteronePhase levelsMin
1998
Estrogen influences osmotic secretion of AVP and body water balance in postmenopausal women
Stachenfeld N, Dipietro L, Palter S, Nadel E. Estrogen influences osmotic secretion of AVP and body water balance in postmenopausal women. American Journal Of Physiology 1998, 274: r187-r195. PMID: 9458917, DOI: 10.1152/ajpregu.1998.274.1.r187.Peer-Reviewed Original ResearchConceptsMin of drinkingPg/Body water balanceHypertonic salineFractional sodium excretionPlasma aldosterone concentrationRenal sodium reabsorptionFree water clearancePlasma estradiol concentrationsHypertonic saline infusionHigh E2 statesWater ad libitumMosmol/kgH2OAldosterone concentrationPostmenopausal womenSodium excretionPlacebo administrationUrine outputAVP secretionSodium reabsorptionFluid retentionE2 treatmentEstradiol concentrationsWater clearanceSaline infusion