ESPE Abstracts

Background: In this study we investigated mortality in children with monogenic diabetes.Methods: Within the Ukrainian Pediatric Diabetes Register (UPDR) the number of children with type 1 diabetes mellitus (DM1) 0-17 y.o. in 2019 was 9860 (1 in 769), with DM2 - 36 (1 in 210,547) with neonatal DM (NDM) - 66 (1 in 115,000), with MODY - 40 cases (1 in 114,844). We used targeted next generation sequencing (tNGS) of all known...

Objective: to assess diagnostic usefulness and accuracy of different tools in patients with Kallmann syndrome and ichthyosis due to X-chromosome microdeletion.Materials: сongenital hypogonadotropic hypogonadism due to KAL1 pathological variants manifest with micropenis, cryptorchidism, delay of puberty, and not associated with disorder of sex development. This condition can be associated with ichthyosis due to deletion of X chromosome region with genes KAL...

Introduction: Vitamin D may be considered as a hormone of prohormone of pleiotropic effects. Seasonal variability of insolation affects its synthesis in humans. In our latitude, vitamin D deficiency is widespread. In 2018, updated recommendations for vitamin D supplementation were published in Poland by Rusi&nacute;ska et al. In 2020, SARS-CoV-2 pandemic lockdown was introduced, with suggestions of protective anti-viral vitamin D role.<p class="ab...

Background: 5-α-reductase type 2 enzyme catalyzes the conversion of testosterone into dihydrotestosterone, a potent androgen responsible for male sexual development during the fetal period. From 2017 to 2019, a homozygous hg38_chr2:31529414 C>T variant in SRD5A2 gene have been identified in 3 unrelated patients with DSD 46,XY of Buryat origin. The variant has been previously reported in one patient from China (Song et al, 2019) and l...

Introduction: Recently, the impact of glycemic variability in the development of chronic complications of diabetes has been put in question. The gold-standard method to quantify glycemic variability is not well established.Objective: To analyze the relationship between HbA1c and glycemic variability as determined from self-monitoring blood glucose (SMBG) in type 1 diabetes (T1D) pediatric population.Patients/methods: Cross-sectiona...

The growth hormone (GH)-insulin-like growth factor (IGF-1) system is essential for optimal human growth and energy homeostasis. Deficiency of pregnancy-associated plasma protein-A2 (PAPP-A2), a protease involved in the liberation of free IGF-1, leads to problems in growth and bone density in humans and mice. Patients with PAPP-A2 deficiency also present lower body mass and mild glucose intolerance. The present study aimed to determine the influence of 1 month of high carbohydr...

Background: The genetic etiology of Type 1 Diabetes (T1D) is well recognized, with over 60 loci being identified to date, mainly through genome-wide association studies (GWAS). Most of these genetic associations involve common variants, while a sizable portion of the missing heritability of T1D could be attributed to unidentified rare single nucleotide polymorphisms (SNPs) (minor allele frequency (MAF) < 5%). The recent availability of large human whole genome sequencing d...

Background: The C19MC locus microRNA gene cluster is imprinted in the placenta. Imprinted genes control prenatal development and placental functions, and are epigenetically regulated. The factors that affect the DNA methylation status of C19MC regulatory region are unknown, as is the impact of this differential methylation on the offspring’s body size.Objectives: To study in humans 1) the association of placental C19MC DNA...

Background: Androgen excess in childhood is a common clinical presentation and might signify serious pathology. We have recently explored patterns and severity of androgen excess in a large female adult cohort to differentiate common polycystic ovarian syndrome (PCOS) from non-PCOS pathology, including congenital adrenal hyperplasia (CAH), ovarian hyperthecosis and adrenal and ovarian tumours (Elhassan et al., JCE&M 2018). Herein, we undertake a similar approach f...

Calcium signaling is fundamental to many cellular processes. An important pathway for increasing intracellular Ca2+ levels is store-operated Ca2+ entry (SOCE) regulated by stromal interaction molecule (STIM1-2), and Ca2+ channels formed by ORAI1-3 proteins. Mutations in the ORAI1 and STIM1 genes that abolish SOCE cause a combined immunodeficiency (CID) syndrome that is accompanied by autoimmunity and nonimmunologic symptoms. We present patients with Anhidrotic Ectodermal Dyspl...