ESPE Abstracts

Introduction: Genetic investigation in patients with short stature allows diagnostic definition and impacts therapeutic decisions, clinical follow-up, and genetic counseling. That said, next-generation sequencing has created a new clinical challenge by allowing the identification of findings unrelated to the complaint that prompted testing. The ACMG published a list of actionable incidental findings that includes genes whose variants should be reported to pati...

Introduction: Extrauterine growth retardation is a common characteristic among children born at very low birth weight (VLBW). Over time, recombinant human growth hormone (rhGH) has been used in this group based on indications for children born small for gestational age (SGA). However, this group represents an extreme phenotype to the majority of children born SGA, and data on the outcomes of this therapy in this group are limited.<strong...

Aim: Serum IGF-1 is widely advocated as a tool for monitoring adherence, safety and effectiveness of recombinant human growth hormone (rhGH). However, there is a need to understand the real-world variations in IGF-1 levels in children on rhGH and the management of abnormal IGF-1 levels in routine clinical practice.Method: Centres participating in the Global Registry for Novel Therapies in Rare Bone and Endocrine Conditio...

Background: Congenital GH deficiency (GHD) can be isolated (IGHD) or combined with other pituitary hormone deficiencies (CPHD). The identification of mutations has clinical implications for the management of patients and genetic counseling1.Objective: To prospectively conduct a molecular-genetic analysis in genes associated with IGHD or CPHD.Method: Forty patients with IGHD (n=8) or CPHD (n=32) were stu...

Brief summary: This case series of three patients with Bartter syndrome (BS) type 3 treated in Sao Paulo and Santarem, Brazil is presented to highlight the difficulties of clinical management and diagnosis. BS is an inherited disorder characterized by impaired sodium chloride reabsorption in the cortical and medullary thick ascending limbs of the loop of Henle and secondary hypokalemic alkalosis. In Brazil, genetic testing for this disease is not common. Howev...

Introduction: McCune-Albright Syndrome (MAS) is a rare congenital disorder caused by post-zygotic activating mutations in GNAS gene. Due to the mosaic pattern of this disease, mutation abundance is frequently low in several tissues, including blood cells. The emergence of next-generation sequencing (NGS) methodologies has allowed the analysis of millions of DNA fragments simultaneously and independently, enabling detection of low mutation abundance. Aim: To es...

Background: GNAS activating mutations are the genetic basis of McCune-Albright syndrome (MAS). Peripheral precocious puberty (PPP) due to functional ovarian cysts, with or without MAS features, denotes a potential GNAS -related disorder.Aim: To explore GNAS somatic mutations (p.R201C/H) in peripheral leukocyte DNA using ddPCR in girls with ovarian-origin PPP with or without MAS.<p class="ab...

Background: Noonan Syndrome (NS; OMIM 163950) is a common autosomal dominant disorder distinguished by facial dysmorphism, short stature, heart defects, chest deformities, and learning disabilities or mental retardation. NS stems from heterozygous germline causative variants in genes regulating the RAS/MAPK signaling pathway, including PTPN11, SOS1, RAF1, RIT1, KRAS, NRAS, BRAF, LZTR1, and SOS2. The condition exhibits considerable clinical variability and shar...

Background: Genetic defects in NKX2.1 (chromosome 14q13) are associated with hypothyroidism, choreo-athetotic movements and respiratory distress, known as the “Brain-Lung-Thyroid syndrome”.Objective and hypotheses: To identify the genetic basis of a disorder compatible with the “NKX2.1 syndrome” and extra features outside the typical triad.Patients and methods: 10-year old girl with congenital ...

Introduction: Neck Circumference (NC) has been pointed out as an important indicator in the evaluation of overweight and may be useful to determine the level of obesity and metabolic alterations.Objective: To verify the relationship between the NC and the lipid profile in adolescents with overweight or obesity.Methods: A cross-sectional study with adolescents between 10 and 19 years old, of both sexes attended at the Endocrinology ...