Endocrine Abstracts

Introduction: We describe a monozygotic twin pair, of which one boy was diagnosed with anorchia. Both were followed-up till age 17.Case report: At birth, in one twin 46 XY boy (A), testes were not palpable while his brother (B) was unaffected. Stimulation with human chorionic gonadotrophin (hCG) and orchidopexia were unsuccessful at age 3. A second hCG-stimulation test was performed at age 8, where serum testosterone response failed to increase. No testi...

Objective: The current study aims to describe sexual desire in female-to-male transsexuals post SRS (sex reassignment surgery) using a validated questionnaire. The association between serum androgen levels and the intensity and frequency of sexual desire are examined. The data are compared to those of male-to-female transsexual persons.Design: Cross sectional study.Methods: Female-to-male transsexual persons, post SRS, (n=48...

Context: In population and psychosocial studies, saliva becomes increasingly popular, mainly due to its non-invasive collection methods and availability of free hormone fractions. However, few studies have evaluated the impact of collection devices on steroid hormone analysis; and none with the currently used methods.Objective: The aim of this pilot study was to minimize pre-analytical errors based on sample collection methods.Meth...