hrp0095rfc6.2 | Sex Development and Gonads | ESPE2022

Dynamic changes of reproductive hormones in male minipuberty: Temporal dissociation of Leydig- and Sertoli-cell activity

S. Busch Alexander , Lindhardt Ljubicic Marie , N Upners Emmie , Bistrup Fischer Margit , Lau Raket Lars , Frederiksen Hanne , Albrethsen Jakob , Holm Johannsen Trine , P Hagen Casper , Juul Anders

Background: The male Hypothalamic-Pituitary-Gonadal (HPG) axis is transiently active during the first months of life with surging serum concentrations of reproductive hormones. This period, termed minipuberty, promotes masculinization, including testicular, and penile growth, as well as further testicular descent in males. It appears to be essential for priming specific cell types, i.e. Sertoli-, Leydig-, and germ cells, including subsequent growth and maturat...

hrp0094p1-44 | Sex Endocrinology and Gonads A | ESPE2021

Adolescents and young adult men with non-syndromic hypospadias: testicular function and in-depth genetic screening

Tack Lloyd , Spinoit Anne-Francoise , Riedl Stefan , Springer Alexander , Tonnhofer Ursula , Hiess Manuela , Weninger Julia , Mahmoud Ahmed , Tilleman Kelly , Laecke Erik Van , Hoebeke Piet , Juul Anders , Albrethsen Jakob , De Baere Elfride , Verdin Hannah , Cools Martine ,

Background: Hypospadias affects approximately 1/200 newborn males. Based on the testicular dysgenesis syndrome hypothesis, some may be suspected of having persistent testicular dysfunction later in life. Few clinical data currently support this hypothesis.Methods: Cross-sectional assessment of hypospadias cases (n = 193) and controls (n = 50), aged 16-21 years, recruited at Ghent University Hospital and...