ESPE Abstracts

Background: Insulin resistance precedes metabolic syndrome abnormalities, and may promote cardiovascular disease and type 2 diabetes in obese children. Lifestyle modification programs have been proposed as the gold standard of care in these individuals. However, results have been discouraging and the use of adjuvant strategies has been necessary. Metformin has beneficial effects on weight reduction, favoring a decrease in body mass index (BMI) and insulin resistance in obese n...

Background: Aromatase deficiency is a rare autosomal recessive disorder produced by CYP19 gene mutations. 46XX affected patients presented with ambiguous genitalia leading to early identification. Most 46XY affected patients presented normal external genitalia and the condition often remains undiagnosed until late puberty. Information on pubertal development in affected boys is scarce since to the present date only two patients, younger than 4 years of age, without lo...

Background: SOX2 is an early developmental transcription factor implicated in pituitary development; heterozygous SOX2 mutations have been reported in patients with a severe ocular phenotype and hypogonadotrophic hypogonadism (HH) with/without associated abnormalities. SOX2 physically interacts with β-catenin, a member of the Wnt-signalling pathway, via its carboxyl-terminus and it represses in vitroβ-catenin mediated activation.<p class="abstex...

Introduction: The proopiomelanocortin is a polypeptide of many biologically active peptides involved in many key functions which have not yet been clarified. The mutation in the gene encoding this polypeptide is associated with a clinical trials characterized by early-onset obesity, terciary adrenal insufficiency, and alteration of pigmentation. Eight cases with known genetic mutation have been published.Case report: Newborn male 27 days old from North A...

Introduction: The extracellular calcium-sensing receptor (CaSR) enables the parathyroid glands and other CaSR-expressing cells involved in calcium homeostasis to sense alterations in calcium serum concentrations. Mutations in the CASR gene may produce gain or loss in its activity. Activating mutations cause a hypocalcaemic syndrome of varying severity, as autosomal-dominant hypocalcaemia or Bartter’s syndrome.Case report: We describe a 6 months infa...

Background: Humanin is a novel signaling peptide which has been showed, by in vitro and in vivo studies, to improve insulin sensitivity. As plasma humanin levels decrease during adulthood, particularly during aging, it has been proposed that the increment of insulin resistance in aging might be associated with lesser humanin plasma values.Objective and hypotheses: The physiological insulin resistance observed during puberty in normal ch...

Objective: To enhance the understanding of the clinical phenotypes of patients with SOX2 gene mutations.Method: A retrospectively analysis of the clinical manifestations and the laboratory results of a child diagnosed as idiopathic hypogonadotropic hypogonadism(IHH) by whole exome-gene sequencing and a review of relevant literatures.Results: A 12-year-old boy clinically manifested short stature, mental retardation, a histo...

Background: Human IGF1 gene defects are characterized by intrauterine and postnatal growth retardation, sensorineural deafness, microcephaly and intellectual disability. Seven cases have been reported so far, and the underlying pathophysiology has been characterized in only three.Objective: To describe a patient with severe short stature presenting a novel homozygous IGF1 gene mutation and its underlying pathogenic mechanism.<p clas...

Objective: Analyze CCH detection program results from 3 Autonomous Communities: TSH and total T4 (TT4) in dried blood spot (DBS) at initial screening (48 hours of life) and at retesting. Describe the characteristics of neonates with screening compatible with CCH. Consider whether TBG deficiency (TBGD) is an added difficulty in said study.Materials and Methods: Retrospective study (May 2016-May 2020) of all neonates ≥33 weeks and/or ≥1500 gr...

Introduction: Genetic alterations within the cAMP/PKA pathway, including the genes GNAS, PDE11A, PDE8, PRKAR1A/B, and PRKACA, result in a spectrum of adrenocortical disorders. To date, somatic PRKACA variants and germline PRKACA copy number gain have been associated with the development of cortisol-secreting adrenocortical adenomas and bilateral adrenal hyperplasia, respectively. While variants within the PRKAR1A ge...