ESPE Abstracts

Introduction: Overgrowth syndromes comprise an heterogeneous group of rare disorders characterized by generalized or segmental excessive growth commonly associated with additional features, such as developmental delay, visceromegaly and macrocephaly. They may present with inherent health concerns and, in some instances, an increased risk of tumor development requiring prompt diagnosis and appropriate referral.Objective: ...

Background: Hypogonadotropic hypogonadism (HH) in females is an uncommon and heterogeneous condition. There is little data regarding biochemical profile of gonadotropins to further substantiate the diagnosis.Objective: To evaluate the gonadotropaic secretion profile after GnRH infusion in a female cohort diagnosed with HH.Patients and methods: GnRH iv infusion test (0–120 min) were performed in 17 patients (17.5±2.3 years...

ERF protein is a major binding target of ERK1/2 kinases, key effectors of the RAS–MEK–ERK signaling cascade. ERF has a role as a negative transcriptional regulator of RAS/MAPK mitogenic pathway (1) and, in theory, a loss-of-function mutation (LOF) in ERF could cause a Rasopathy phenotype. To date, LOF variants of ERF have been reported in 45 individuals with craniosynostosis but without a Noonan-like phenotype. There is only one case report describing a patient wit...

Objectives: Increased central and peripheral sensitivity to thyroid hormones seems to be associated with an increased risk of developing prediabetes in adulthood. The objective of this study was to evaluate the relationship between the severity of obesity, the presence of glyco-metabolic alterations, and tissue sensitivity to thyroid hormones in prepubertal euthyroid children with simple obesity.Methods: Eighty prepubert...

Background: The persistent Müllerian duct syndrome (PMDS) is a rare 46-XY disorder of sex development, characterized by the persistence of Müllerian derivatives (uterus, Fallopian tubes) in otherwise normally virilised males. The condition is transmitted as a recessive autosomal trait and is caused in most cases by a defect in either the anti-Müllerian hormone (AMH) or the AMH type-II receptor (AMHR-II) genes.Case report: We present a 9 ye...

Background: Hoffmann syndrome is a specific and rare form of hypothyroid myopathy in adults characterized by presence of muscle stiffness, proximal weakness and pseudohypertrophy. When this occurs in a cretin child it is known as Kocher–Debré–Sémélaigne syndrome. Patients with more severe or longstanding untreated hypothyroidism are more likely to develop clinically significant muscle disease. Serum muscle enzyme levels as CK, myoglobin and lactate deh...

Aim: To determine Sertoli cell function at diagnosis and after 3 months of chemotherapy.Methods: A prospective cohort study was performed including children with acute lymphoblastic leukaemia, acute myeloid leukaemia, or non-Hodgkin lymphoma. Serum levels of AMH were evaluated at diagnosis and after 3 months during chemotherapy. Results were analysed as standard deviation scores according to pubertal stage and expressed ...

The survival rate of young patients with cancer has greatly improved in the last decades, in part due to the introduction of new therapeutic agents and protocols.Chemotherapy may be associated with risk of ovarian dysfunction, permanent or transient amenorrhea, symptoms of ovarian insufficiency and infertility.It has been suggested that prepubertal ovary is less susceptible to deleterious effect of chemotherapy.<p class="abstex...

Background: Osteoporosis is a complex disorder, influenced by both environmental and genetic factors. Primary osteoporosis is a rare early onset disorder with high morbidity and mortality. Wnt signaling pathway has been shown to be involved in the regulation of bone remodeling.Case: Native Argentinean boy born from a consanguineous family with history of retinal detachment in the maternal line. Delivered at term, birth weight 2900 g (−0.95 SDS), bi...

Introduction: Improvements in the treatment of acute lymphoblastic leukaemia (ALL) and non-Hodgkin lymphoma (NHL) have increased survival, with the consequent concern about the long-term effects that childhood chemotherapy may have on ovarian function. AMH constitutes an indirect, reliable biomarker of the ovarian reserve, useful for the assessment of cancer therapy-related ovarian damage.Aim: To evaluate small ovarian f...