ISSN 1662-4009 (online)

ey0019.6-2 | Sex Hormone Replacement Therapies in DSD | ESPEYB19

6.2. Metabolic effects of estradiol versus testosterone in complete androgen insensitivity syndrome

MK Auer , W Birnbaum , MF Hartmann , PM Holterhus , A Kulle , A Lux , L Marshall , K Rall , A Richter-Unruh , R Werner , SA Wudy , O Hiort

Endocrine. 2022 Jun;76(3):722-732. PMID: 35258786, doi: 10.1007/s12020-022-03017-8.Brief Summary: In this multicentre, randomized, double-dummy, double-blind crossover trial the authors investigated differences in metabolic parameters between the individuals with complete androgen insensitivity syndrome (CAIS) receiving testosterone versus estradiol replacement therapy. This is the first s...

ey0016.6-1 | DSD New Paradigm | ESPEYB16

6.1. Oestrogen versus androgen in hormone-replacement therapy for complete androgen insensitivity syndrome: a multicentre, randomised, double-dummy, double-blind crossover trial

W Birnbaum , L Marshall , R Werner , A Kulle , PM Holterhus , K Rall , B Kohler , A Richter-Unruh , MF Hartmann , SA Wudy , MK Auer , A Lux , S Kropf , O Hiort

Lancet Diabetes Endocrinol. 2018 Oct;6(10):771–780.doi: 10.1016/S2213-8587(18)30197-9.For the first time a prospective randomized treatment study has been performed for individuals with a DSD. This national multi-center, double-blind, randomized, cross-over trial compared estrogen therapy to androgen replacement in complete androgen insensitivity syndrome ...

ey0020.4-6 | Novel Insights in Androgen Insensitivity Syndrome | ESPEYB20

4.6. Formin-mediated nuclear actin at androgen receptors promotes transcription

J Knerr , R Werner , C Schwan , H Wang , P Gebhardt , H Grotsch , A Caliebe , M Spielmann , PM Holterhus , R Grosse , NC Hornig

Brief summary: This ex vivo/ in vitro study describes a novel regulatory mechanism of androgen receptor (AR) gene transcription by intranuclear actin assembly in droplets upon dihydrotestosterone (DHT) stimulation mediated by DAAM2 (Dishevelled-associated activator of morphogenesis 2) gene.Androgen insensitivity syndrome (AIS) is a common etiology in individuals with 46, XY disorder/differences of sex development, AIS has diverse genita...

ey0020.12-9 | Basic Research | ESPEYB20

12.9. Formin-mediated nuclear actin at androgen receptors promotes transcription

J Knerr , R Werner , C Schwan , H Wang , P Gebhardt , H Grotsch , A Caliebe , M Spielmann , PM Holterhus , R Grosse , NC Hornig

Brief summary: Two unrelated patients with a disorder of sex development (DSD) phenotype of partial androgen insensitivity (PAIS) showed heterozygous variants in the DAAM2 gene. Their genital skin fibroblasts showed reduced dihydrotestosterone-stimulated androgen receptor (AR) activity. Extensive basic studies revealed the underlying mechanism of the DSD in which DAAM2-regulated actin polymerization at the ligand-inducible androgen receptor is required for androgen-st...

ey0016.6-2 | New Functions of (Old) Genes | ESPEYB16

6.2. Epigenetic repression of androgen receptor transcription in mutation-negative androgen insensitivity syndrome (AIS type II)

NC Hornig , P Rodens , H Dorr , NC Hubner , AE Kulle , HU Schweikert , M Welzel , S Bens , O Hiort , R Werner , S Gonzalves , AK Eckstein , M Cools , A Verrijn-Stuart , HG Stunnenberg , R Siebert , O Ammerpohl , PM Holterhus

J Clin Endocrinol Metab. 2018 Dec 1;103(12):4617–4627.doi: 10.1210/jc.2018-00052. PMID: 30124873This study shows for the first time that epigenetic changes in the androgen receptor gene (AR) proximal promoter region may underlie a clinical phenotype of Androgen Insensitivity Syndrome (AIS) in individuals in whom no DNA sequence mutation in AR or ...