ESPE Abstracts

Background: Bone morphogenetic protein 15 (BMP15), is an oocyte-specific growth factor, that regulates folliculogenesis and ovulation rate. It is encoded by the BMP15 gene (chromosome Xp11.2), in which heterozygous missense variants in the precursor or mature peptide cause primary ovarian insufficiency (POI) with the dominant-negative effect. BMP15-related ovarian dysgenesis (OD) constitutes 1.5-2.0% of POI. The underlying mechanism ...

Introduction: Primary ovarian failure (POF) is traditionally defined as cessation of menstruation prior to 40 yr of age and diagnosis is confirmed by elevated serum FSH levels (often above 40 IU/L). It is known that 0.1% of the population is affected with POF before age 30 yr. Here, we report a case with POF, who presented wit tall stature due to structural abnormalities in X chromosome.Case Report: A 13.5 year-old-adole...

Background: Fanconi Bickel syndrome (FBS) is a rare form of glycogen storage disease (GSD) inherited in an autosomal recessive manner and caused by mutations in the SLC2A2 gene leading to the loss of GLUT2 glucose transporter expression. The disease is considered to be rare in which a little more than 100 cases have been reported in the literature. The SLC2A2 gene encodes for GLUT2, a low affinity facilitative glucose transporter expressed in critical tissues ...

Autosomal dominant DICER1 mutations are among the causes of early-onset familial cancer. DICER1 mutation has been shown in pleuropulmonary blastomas as well as ovarian tumors, thyroid, parathyroid, pituitary, adrenocortical and testicular tumors. It is important to be aware of the risk for the development of other cancers in the follow-up of these cases.Cases: Case-1: Previously known to be healthy 8,5-year-old girl presented with compla...

Introduction: Heterozygous loss-of-function mutations in the glucokinase (GCK) gene cause MODY 2. Conversely, homozygous loss-of-function mutations in the same gene give rise to permanent neonatal diabetes mellitus (DM). Previously, two patients diagnosed with DM in adolescence and had homozygous GCK mutations were reported. Variants in these patients have been shown to exhibit inactivated kinetics that are indistinguishable from neonatal ons...

Introduction: Congenital generalized lipodystrophies (CGL); autosomal recessive disorders characterized by dyslipidemia and almost complete absence of body fat associated with insulin resistance. It develops due to mutations in AGPAT2, BSCL2, CAV1, PTRF, PCYT1A and PPAR, genes.CGL type 4 results from PTRF-CAVIN gene mutation. Unlike classical CGL, myopathy, flat and skeletal muscle hypertrophy, heart rhythm disorders (sudden death) and skeletal abnormalities a...

Introduction: X-linked adrenoleukodystrophy (X-ALD) is a rare autosomal recessive neurodegenerative disease caused by a mutation in the ABCD1 gene. Although its clinical presentation varies, X-ALD is generally characterized by progressive demyelination of the central nervous system, primer adrenal insufficiency, and elevated plasma very long-chain fatty acid (VLCFA) levels. Herein, we aimed to present a case of X-ALD with normal VLCFA caused by a path...

Neonatal severe primary hyperparathyroidism (NSHPT) is a rare and life-threatening disorder caused by inactivating mutation in CASR gene, which encodes Ca-sensing receptor. NSHPT leads to severe neonatal hypercalcemia with inappropriately increased serum intact parathyroid hormone (iPTH) and decreased urinary Ca excretion. Hydration, forced diuresis, calcitonin, bisphosphonates and cinacalcet have been used to lower serum Ca prior to surgery. Total parathyroidectomy i...

Introduction: The main type of diabetes seen in pediatric clinical practice is type 1 diabetes. Monogenic diabetes and syndromic diabetes are rare, but can be more common in areas where consanguinity is high.A 12-year-old girl born to consanguineous parents who are first cousins, was referred after being diagnosed with diabetes and severe diabetic ketoacidosis. In addition, she had hypertrichosis, coarse facial features, acanthosis nigri...

Background: Isolated growth hormone deficiency type IA (IGHD IA) is described in families with homozygous GH1 deletions that arise from unequal recombination and crossing over within the GH gene cluster during meiosis. Patients with IGHD IA show early and severe growth failure and tend to develop antibodies upon treatment with recombinant human growth hormone (rhGH).Aims: To present the follow−up of three ...