hrp0092rfc12.1 | Growth and Syndromes (to include Turner syndrome) | ESPE2019

Karyotyping of oocytes, granulosa cells and stromal cells in the ovarian tissue from patients with Turner syndrome: a pilot study

Peek Ron , Schleedoorn Myra , Beerendonk Catharina , van der Velden Janielle , Braat Didi , Smeets Dominique , Fleischer Kathrin

Summary Answer: Most primordial/primary oocytes were found to have a 46,XX karyotype. Chromosome patterns of the ovarian cells were different from that observed in other tissues.Background: TS is a chromosomal condition associated with partial or complete absence of one of the two X-chromosomes. Females with TS have a limited reproductive lifespan due to an accelerated loss of germ cells. It has been hypothesized that vi...

hrp0092p1-377 | Growth and Syndromes (to include Turner Syndrome) (2) | ESPE2019

International Consensus: Ovarian Tissue Cryopreservation in Young Turner Syndrome Patients. Outcomes of an Ethical Delphi Study Including 55 Experts from 16 Different Countries.

Schleedoorn Myra , Mulder Bjarne , Braat Didi , Beerendonk Catharina , Peek Ron , Nelen Willianne , van Leeuwen Evert , van der Velden Janielle , Fleischer Kathrin

Summary Answer: The majority of the expert panel states that ovarian tissue cryopreservation (OTC)should be offered to young females with Turner syndrome (TS)Background: OTC is a valid option to preserve the fertility of young females at risk of iatrogenic premature ovarian insufficiency (POI). Offering OTC to females with a genetic cause of POI seems a logical next step. One of the most common genetic disorders related ...

hrp0098p1-69 | Growth and Syndromes 1 | ESPE2024

Hormonal markers of ovarian function and the role in predicting reproductive lifespan in girls with Turner syndrome

van der Coelen Sanne , Sas Theo , Richter-Unruh Annette , Peek Ron , Braat Didi , Fleischer Kathrin , IntHout Joanna , van der Velden Janielle

Introduction: Turner syndrome (TS) significantly impacts the reproductive lifespan of affected girls due to premature ovarian insufficiency (POI). To improve fertility counseling for (parents of) girls with TS, it is important to predict the ovarian reserve at an early age. However, this is challenging since data on longitudinal hormone parameters related to ovarian function are scarce. This study aims to initiate a first step towards a prediction model for ov...