ESPE Abstracts

Objectives: To investigate sensitivity, specificity and predictive values (PPV, NPP) of autoantibodies against 21-hydroxylase in APECED patients with and without adrenal insufficiency (AI) and in patients with other forms of AI.Methods: 42 patients with APECED and 24 patients with other forms of AI were recruited. APECED was confirmed by finding at least two major components of the disease and/or two mutations in AIRE gene and/or high levels of antibodie...

Background: Adrenal hypoplasia congenital associated with DAX-1 (NROB1) gene mutations is a rare cause of primary adrenal insufficiency in male. It can be presented as a part of Xp21 contiguous gene deletion syndrome which characterized by complex glycerol kinase deficiency (GK), adrenal hypoplasia congenital (NROB1), intellectual disability (IL1RAPL1) and/or Duchenne muscular dystrophy (DMD).Case report: We report a 6-month-old male infant, which presen...

Background: Klinefelter syndrome (KS) is the most common cause for hypergonadotropic hypogonadism. Patients with 47,XXY karyotype often have increased gonadotropin levels at early puberty, which stay high during adolescent and adult life due to hyalinisation of seminiferous tubules of testes. We report a clinical case of 47, XXY KS patient with low gonadotropin levels.Clinical case: A boy was referred to an endocrinologist at the age of 12,5 years due to...

Background: Severe insulin resistant (IR) type A is a rare inherited disorder characterized by glucose metabolism disturbances without obesity, acanthosis nigricans and hyperandrogenia due to INSR defects.Case report: A 10-year-old girl was admitted because of skin papillomatosis and hyperpigmentations since her 7 years. She had early puberty with pubarche at 8 years and telarche at 9 years. Examination revealed normal height and weight (SDS BMI...

Background: Pseudohypoparathyroidism is a group of rare disorders characterized by tissue insensitivity to PTH and Albright hereditary osteodystrophy (AHO) due to inactivating mutations or epigenetic defects of the GNAS.Objective and hypotheses: Clinical features and molecular characteristics of patients with PHP have been examined.Method: We included 28 patients from 26 families with PHP1a and 1b. GNAS mutation analysis w...

Background: Diabetes mellitus (DM) is one of ‘minor’ components of autoimmune polyglandular syndrome type 1 (APS1). The prevalence of DM in APS1 varies from 2.5 to 18% in different populations.Objective and hypotheses: To study disease phenotype and genotype of APS1 patients with DM.Method: All patients diagnosed with DM were selected from the Russian registry of APS1 patients. Clinical data, AIRE-gene mutations and immun...

Objective: Transsphenoidal surgery (TSS) is a treatment of choice for Cushing`s disease (CD), whose effectiveness range is from 70 to 90%. Recurrence rate after successful treatment is about 25%. Preoperative predictors of remission and recurrence are still unexplored what leads to further investigations.Aim: Analysis of remission and recurrence rates of CD after radical treatment according to preoperative MRI....

Objective: Somatic mutations in the USP8 gene were discovered as the most common genetic defects in corticotropinomas with a frequency of 30 to 60% in adult patients. With regard to pediatric patients, establishing prevalence of USP8 mutations is still challenging due to the rarity of CD incidence in childhood.Aim: To determine the frequency of somatic genetic drivers of CD in a cohort of pediatric patients.<p class=...

Background: To date at least 30 genes are known to be associated with idiopathic hypogonadotropic hypogonadism (IHH). Analysis of all these gene candidates by Sanger sequencing would be expensive, labour-intensive and time-consuming. Recent introduction of next-generation sequencing (NGS) enables simultaneous analysis of multiple gene targets making it an attractive approach in such conditions as IHHObjective and hypotheses: To study the spectrum of mole...

Background: McCune-Albright-Syndrome (MAS) is an extremely rare multisystem disorder that affects bones (fibrous dysplasia), skin (cafe-au-lait spots) and endocrine organs (hyperfunctioning endocrinopathies) and is caused by somatic mutations in GNAS gene.Materials and methods: We have evaluated 55 pediatric patients (44 girls (G) and 11 boys (B)) diagnosed in the period of 20 years. Mutation analyses using competitive allele-specific TaqMan PCR...