ESPE Abstracts

Background: Being born small for gestational age (SGA) is an associated condition to nonspecific 46,XY DSD (without molecular diagnosis and with no specific disorders of undermasculinization). However, the underlying mechanism of the relationship between the presence of genital abnormalities and intrauterine growth restriction is unknown. The GH-IGF system is crucial for sex differentiation in mice and in humans, members of this system were detected in embryon...

Disorders of sex development (DSD) are those congenital conditions in which development of chromosomal, gonadal, or anatomical sex is atypical. The aim of this study was to characterize the histology of 46,XX DSD prepubertal gonads. We studied 25 gonads of fourteen 46,XX DSD patients. The age of biopsy/gonadectomy was 1.17 (0.08–4.17) years (median and range). Molecular studies confirmed the absence of SRY by PCR and/or MLPA in blood samples of all patients and i...

Background: In Androgen insensitivity syndrome (AIS) is a hereditary disease in which AR mutations in 46,XY patients present with partial (PAIS) or complete (CAIS) defects in virilisation.Objective and hypotheses: The aim was to analyze the effect of lack of androgen action in germ cell (GC) health and survival along postnatal development, previous to Sertoli cell (SC) pubertal maturation.Method: The histological features and quant...

Background: Carriers of germline DICER1 mutations are predisposed to a rare cancer syndrome, the DICER1 syndrome, associated with tumors such as pleuropulmonary blastoma (PPB), ovarian Sertoli-Leydig cell tumors (SLCT), multinodular goiter (MNG), cystic nephroma (CN), embryonal rhabdomyosarcoma (ERMS) or primitive neuroectodermic tumor. DICER1 is involved in the generation of microRNAs (miRNAs), short, double-stranded, non-coding RNAs that modulate gene expression at ...

Background: The SRY protein is a transcription factor that contains a high mobility group (HMG) homeobox domain which possesses sequence-specific DNA binding activity and regulates other genes involved in male sex determination pathway. The majority of the identified mutations occurred within the HMG-box motif. There are few reports of pedigrees with familial transmission.Objective and Hypotheses: To describe a paternally transmitted novel SRY mutation w...

We present the cases of a 3 yo girl diagnosed with precoccious puberty, with a personal history of premature telarchy, genital hair development and vaginal blood discharge at 1yo 2mo, currently in treatment with GnRH agonist, and the case of her younger sister, aged 1 yo, who also presented with premature telarchy. They have 2 older siblings, both of them are clinically healthy boys. Their mother and paternal aunt had normal pubertal development. No other history from females ...

Background: Juvenile idiopathic arthritis (JIA) is a heterogeneous group of diseases associated with an increase of inflammatory cytokines that may to influence child growth. However this is already known, to date auxological data published of JIA patients during biologic treatment are incomplete and very heterogeneous.Objective and hypotheses: To evaluate the auxological features in a selected cohort of patients with JIA treated with biologic drugs....

Background: 25-Hydroxyvitamin D (25(OH)D) deficiency is reported to be common in patients with rheumatoid arthritis and associated with disease activity, physical disability, and cardiometabolic intermediates; data in patients with juvenile idiopathic arthritis (JIA) are inconsistent.Objective and hypotheses: To assess serum 25(OH)D in children, adolescents, and young adults with JIA, and to identify the risk factors for vitamin D deficiency in JIA patie...

Background: Down syndrome (DS) is the most common genetic (chromosomal) mental retardation syndrome. In these patients, several environmental and hormonal factors contribute to low bone mineral density (BMD), among these factors, vitamin D may play a significant role in the health of patients with DS. However, poor studies have evaluated 25-hydroxy cholecalciferol (25(OH)D) levels in DS.Objective and hypotheses: The purpose of this study was to assess se...

Background: Congenital proopiomelanocortin deficiency (POMC) gene mutations cause early-onset obesity, hyperphagia and ACTH deficiency. In the subjects with this picture, neuropsychiatric (NP) features were rarely reported. Many Authors described an appetite loss during the topiramate treatment.Objective and hypotheses: To discuss NP features observed in a POMC deficient patient and to propose a therapeutic attempt to reduce the hyperphagia.<p class=...