2023
Effects of androgen excess and body mass index on endothelial function in women with polycystic ovary syndrome
Berbrier D, Leone C, Adler T, Bender J, Taylor H, Stachenfeld N, Usselman C. Effects of androgen excess and body mass index on endothelial function in women with polycystic ovary syndrome. Journal Of Applied Physiology 2023, 134: 868-878. PMID: 36861670, DOI: 10.1152/japplphysiol.00583.2022.Peer-Reviewed Original ResearchConceptsPolycystic ovary syndromeEndothelial dysfunctionEndothelial functionOvary syndromeAndrogen excessLean womenObese womenEstradiol supplementationLow flow-mediated constrictionOW/OB groupOverweight/obese womenMarked endothelial dysfunctionSevere endothelial dysfunctionFree testosterone levelsBody mass indexFlow-mediated dilation (FMD) testFree testosteroneMass indexReactive hyperemiaOB groupTestosterone levelsHealth differEndothelial pathophysiologyDysfunctionAndrogens
2022
Endothelial (Dys)function in Women With Androgen Excess Polycystic Ovary Syndrome: Effects of Body Composition and Ethinyl Estradiol Supplementation
Berbrier D, Leone C, Adler T, Bender J, Taylor H, Stachenfeld N, Usselman C. Endothelial (Dys)function in Women With Androgen Excess Polycystic Ovary Syndrome: Effects of Body Composition and Ethinyl Estradiol Supplementation. The FASEB Journal 2022, 36 DOI: 10.1096/fasebj.2022.36.s1.0r847.Peer-Reviewed Original ResearchOW/OB womenFlow-mediated dilationPolycystic ovary syndromeOB womenEndothelial functionEndothelial dysfunctionLean womenOvary syndromeEstradiol supplementationForms of PCOSConduit vessel endothelial functionOverweight/obese womenHealthy lean womenImpaired endothelial functionResult of obesityVessel endothelial functionFMD changesFMD responseObese womenFree testosteroneOb controlsReactive hyperemiaBody compositionEE supplementationDysfunction
2019
Compromised endothelial function in transgender men taking testosterone
Gulanski BI, Flannery CA, Peter PR, Leone CA, Stachenfeld NS. Compromised endothelial function in transgender men taking testosterone. Clinical Endocrinology 2019, 92: 138-144. PMID: 31765022, PMCID: PMC6957681, DOI: 10.1111/cen.14132.Peer-Reviewed Original ResearchConceptsEndothelial functionTransgender menEndothelial dysfunctionCisgender femalesClinical cardiovascular riskCardiovascular risk factorsImpaired endothelial functionEarly follicular phaseAndrogen excessCardiovascular riskVasodilatory responseCoronary arteryHormonal milieuFollicular phaseTestosterone treatmentMenstrual cycleRisk factorsFemale genderAtherosclerotic plaquesEarly signsTestosteroneTotal TSImportant markerDysfunctionMen
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 4VasodilationDysfunctionAntagonist