ESPE Abstracts

Background: Maturity-onset diabetes of the young (MODY) is a heterogeneous group of disorders characterised by autosomal dominant type of inheritance and caused by genetic defects leading to dysfunction of pancreatic beta-cells. At least 13 types of MODY have been described in the literature, the most frequent of which are MODY types 1–3. The frequency of different MODY types in children in Russia has not been studied before.<strong...

Background: The prevalence of MODY2 in the gestational diabetic population has been estimated to be approximately 2%. Risk of macrosomia in GCK/GDM cases depends on maternal glycemic control and fetal mutation status. However, the fetal genotype is unknown before birth. We assessed the effects of insulin therapy on the birth weight of children born to mothers with GCK mutations.Objective and hypotheses: The study included 38 patients with GDM due to GCK ...

Introduction: The heterozygous activating mutations in the KCNJ11 and ABCC8 are the commonest causes of permanent neonatal diabetes mellitus (PNDM). The most severe clinical form of NDM is DEND syndrome. Besides diabetes mellitus such patients show severe developmental delay, hypotonia and therapy-resistant epilepsy. To our knowledge only some cases of DEND syndrome due to ABCC8 mutations are sulfonylurea-responsive. Here we report case of DEND syndrome due t...

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...

Background: Nephrogenic syndrome of inappropriate antidiuresis (NSIAD) results from gain-of-function mutations in the AVPR2 gene coding for vasopressin receptor 2 (V2R). In contrast, nephrogenic diabetes insipidus (NDI) is caused by loss-of-function mutations in AVPR2. Here we describe and functionally characterize a novel mutation located in the seventh transmembrane domain of V2R. This mutation was identified in a boy suffering from water-induced hyponatrem...