ESPE Abstracts

Background: The process of sexual differentiation is critical for reproduction in nearly all metazoan. Defects in any of the genes involved in either testicular or ovarian development can result in disorders of sex development (DSD). CBX2/M33 is a chromatin modifier that plays an important role in sexual development and its disorders, highlighted by the fact that M33-deficient mice have male-to-female sex reversal and loss-of-function of CBX2 causes 46, XY DSD in humans. Human...

Introduction: Obesity is considered one of the most common chronic diseases worldwide which is associated with chronic, low-grade, sterile inflammation. It leads to variable changes in metabolic and hormonal homeostasis. The aim of our study was to evaluate the impact of obesity associated chronic inflammation on peripheral complete blood count alterations.Material and Methods: 27 overweight/obese and 15 normal-weight ch...

Background: Leptin receptor deficiency leads to severe early-onset obesity and pituitary dysfunction. Here we present the first case of monogenic obesity due to a novel mutation in LEPR gene in Russia.Case report: 16-year-old female patient was admitted to our hospital with morbid obesity and primary amenorrhea. She was born at term with a birth weight of 3360 g to non-consanguineous parents. She had a mild deve...

Introduction: Pallister-Hall syndrome (PHS) is a rare disease with autosomal dominant pattern of inheritance caused by CHD7 gene mutation and characterized by epiglottis malformation, polydactyly or oligodactyly, hypothalamic hamartoma and visceral abnormalities. Central precocious puberty is the most common endocrine abnormality detected in PHS. Regardless isolated growth hormone deficiency, pan hypopituitarism and genitourinary malformation are reported in P...

Congenital hyperinsulinism (CHI) is rare disease which prevalence is estimated as 1:2500 to 1:50000 born newborns. Main reason of the disease are genetic mutations in genes responsible for regulation of insulin secretion. First line treatment is diazoxide therapy.Our patient was diagnosed with CHI at the age of 2 months. Biochemical tests prooved diagnosis of CHI. He presented lack of negative feedback and secreted pathologic amount of insulin – dur...

Introduction: Anemia in children is still quite common, sometimes it is a secondary symptom of another rare disorder. Rendu-Osler-Weber disease, a genetically determined haemorrhagic diathesis, is characterized by the occurrence of vascular malformations leading to bleeding from the nose, skin and mucous membranes and to various internal organs. Diagnosis facilitates the occurrence of the disease in relatives of the first degree, however, due to the progressive nature of vascu...

Introduction: Silver-Russell syndrome (SRS) is a rare, clinically and genetically heterogenous condition, and affects one in 100,000 born children. The most well-known genetic mutations in this syndrome are: 11p15 mutation (20–60% patients), and maternal uniparental chromosome 7 disomy (7%–15%). Children with SRS have severely impaired physical growth - intrauterine and after birth. They can be treated with growth hormone (GH).Case report: 8 ye...

Background: Pathogenic germline DICER1 variants cause a hereditary cancer predisposition syndrome with a variety of manifestation. In addition to conferring increased cancer risks for pleuropulmonary blastoma (PPB) and ovarian sex cord-stromal tumors, particularly Sertoli–Leydig cell tumor, individuals with pathogenic germline DICER1 variants could also have lung cysts, cystic nephroma, multinodular goiter, ciliary body medulloepithelioma, genitourinary embryonal rhabdomy...

Background: Testosterone levels in newborns are changing over the first weeks of life. This dynamic change is making the assessment of infants with ambiguous genitalia complicated. The Clinical laboratory at Karolinska offer two different methods for measurement of serum testosterone, ECLIA (electrochemiluminescense immunoassay) and Liquid chromatography–tandem mass spectrometry (LC–MS/MS). It is important to evaluate these two metho...

Background: Vitamin D plays a significant role in musculoskeletal health and various extraskeletal functions making the prevention and treatment of this vitamin (now considered as a hormone) of utmost importance. Literature on requirement/supplementation of vitamin D in asymptomatic children is scarce and this study was an attempt to see the effect of three different doses of cholecalciferol supplementation regimens in children with asymptomatic vitamin D deficiency.<p cla...