ESPE Abstracts

Background: In gender dysphoric adolescents GnRH agonists can be used to suppress pubertal development of the natal sex. Subsequently cross sex hormones can be given to induce pubertal development of the experienced gender. Only few data are available on the safety of this treatment. Lipid levels are known to increase during puberty and pubertal suppression may alter this increase. In gender dysphoric male-to female (MtF) adults oestrogens has been shown to result in a more fa...

Background: In gender dysphoric adolescents GnRH agonists can be used to suppress pubertal development of the natal sex. The metabolic implications of the pubertal suppression have not yet been explored. Insulin sensitivity is known to be influenced by pubertal changes. During puberty a decrease in insulin sensitivity is normally observed.Objective and hypotheses: The effects of GnRH agonists on insulin sensitivity during 2 years of treatment in adolesce...

Background: Both The Endocrine Society and the World Professional Association for Transgender Health (WPATH) published guidelines for the treatment of children and adolescents with gender dysphoria (GD). The guidelines recommend the use of GnRH agonists in adolescence to suppress puberty, and the use of cross-sex hormones starting around age 16 for eligible patients. In actual practice, there is no consensus whether to use these early medical interventions. The aim of our stud...

Background: Children with obesity show differences in brain structure, executive function and appetitive traits when compared to lean peers. Results of imaging studies, however, have been contradictory.Objective and hypotheses: To investigate whether childhood obesity is associated with differences in brain structure and whether differences associate with executive function and appetitive traits.Method: A cross-sectional case-contr...

Background: Gender dysphoria is characterised by an incongruency between the perceived gender identity and the biological sex. The cause of gender dysphoria is unclear and environmental as well as genetic factors may be important. It is well known that during sexual differentiation sex steroids control not only the differentiation of the internal and external genitalia but also the sexual differentiation of the brain. Structural as well as functional differences have been show...

Background: Measurement of testicular volume is important when conditions associated with a delay or advance in the onset of puberty, or micro- and macroorchidism, are suspected. Measured testicular volumes must be compared with reference data, preferably expressed in S.D. curves using the LMS method, as is routinely done for many auxological measurements in pediatrics. The current study therefore aimed to construct LMS-smoothed age-reference charts for testicul...