ESPE Abstracts

Introduction: Estrogens play an essential role in reproduction and their peripheral action is mediated via nuclear alfa and beta receptors (ER) as well as membrane receptors. To date, only 3 females and 2 males from 3 families with a loss of function of ERa have been reported. The phenotype in these families was strongly suggestive of an estrogen resistance with an absence of a complete puberty, a delay in epiphyseal maturation with high estradiol levels and e...

Background: A reduced reproductive lifespan is one of the most significant implications for girls with Turner syndrome (TS) and is due to an accelerated loss of ovarian insufficiency. Lately, there has been a surge in scientific research aimed at whether ovarian tissue cryopreservation (OTC) is a viable option for fertility preservation in girls with TS. This required a unilateral ovariectomy for girls with TS who may already have a poor ovarian reserve.<p...

Background: It has already been documented that selenium treatment has beneficial effects in adult patients with autoimmune thyroiditis, especially in those with a higher titer of antibodies and increased inflammatory disease activity.Objective and hypotheses: To investigate whether daily supplementation of organic selenium at a high dose (200 μg in the form of L-selenomethionine) has any effect on the titer of thyroid autoantibodies.<p class="a...

Background: Rapid BMI increase in early childhood was found to be a contributing factor for impaired final height in boys with Cystic Fibrosis (CF). This may be explained by early adrenarche triggering an accelerated bone maturation resulting in a compromised growth spurt during puberty, comparable to children with SGA. In healthy Dutch boys, adrenarche starts from the age of 9 years with DHEAS ≥ 1 µmol/L. In Dutch girls, the onset of adrenarche is fr...

Objective: To determine the prevalence of congenital hypothyroidism (CH) in children with dry bloodspot TSH (b-TSH) between 5 and 10 mIU/l in neonatal screening and evaluate their thyroid function evolution.Methods: Retrospective study of thyroid function in children born from 2003 to 2010 with b-TSH between 5 and 10 mIU/l who were put on treatment in the first two years of life due to serum TSH≥10 mIU/l. The prevalence of CH ...

Background: Pseudoisodicentric X chromosomes with an Xq deletion (46,X,idic(Xq)) are rare. Most cases are mosaic, the other cell line being 45,X. Nonmosaicism is rare. Phenotype is characterized by the resultant of the X deletion. Variations from short to tall stature can occur and premature ovarian failure is a common feature.Case presentation: A 16 year old girl was referred to our clinic with primary amenorrhoea. She ...

Background: Fibroblast growth factor 21 (FGF-21) is a complex molecule involved in lipid and glucose metabolism. FGF-21 shares biochemical pathways and sites of action with thyroid hormones. Current data correlate FGF-21 levels to thyroid function. The aim of the present study was to investigate possible associations among FGF-21 levels, resting metabolic rate (RMR), lipidemic profile and L-thyroxin replacement therapy treatment in children and adolescents wit...

Background: Premature thelarche is the isolated breast development in girls <8 years of age unaccompanied by other signs of puberty including advanced bone age or growth spurt. The GnRH stimulation test is used to distinguish between premature thelarche and central precocious puberty.Objective and hypotheses: We studied accuracy of the gonadotropin responses to GnRH stimulation in predicting pubertal progression in children diagnosed with premature t...

Background: In boys with suspected delayed puberty, serum testosterone is used for the evaluation of gonadal function. It is known that early in puberty testosterone levels show a sleep wake rhythm, with nocturnal levels increasing ahead of daytime levels. To evaluate the onset of puberty, the use of salivary testosterone would be an appealing alternative to serum analysis as it is non-invasive and allows multiple nocturnal sampling. Moreover, it is thought that salivary testo...

Background: Children living with paediatric endocrine conditions in resource-poor countries experience inequitable rates of preventable mortality and morbidity. Reducing preventable mortality will help member states committed to delivering on the United Nations’ Sustainable Development Goals 3.2.1, 3.2.2 and 3.4. CLAN (Caring & Living As Neighbours) has been improving health outcomes for children living with CAH in resource poor countries since 2004,...