ESPE Abstracts

IMNEPD is a mitochondrial disease caused by homozygous mutations in the PTRH2 gene, a nuclear gene coding for a primary mitochondrial protein. IMNEPD was first described in 2014. So far only 3 other case reports have been published, reporting on a total of 15 patients. We report on two affected siblings of whom the girl developed an antibody negative diabetes at 13 years of age with typical symptoms (polyuria, polydipsia, weight loss of 1,5 kg), and without diabetic k...

Introduction: Differential diagnosis of partial central diabetes insipidus (PCDI) and primary polydipsia (PP) can be challenging. Copeptin is the C-terminal segment of the vasopressin precursor peptide that represents a novel and stable biomarker. Arginine infusion produces a nonosmotic stimulus that causes an increase in copeptin concentrations in healthy subjects. Arginine-stimulated copeptin concentrations have been used to differentiate between patients wi...

Introduction: Pituitary adenomas (PPAs) are uncommon in childhood and adolescence, accounting for 2-6% of all intracranial neoplasms. Most data are based on case reports and only a few series have been reported. Delayed puberty, short stature, galactorrhea and weight gain are common features at presentation in pediatric patients. Functional tumors constitute a vast majority (90%) of PPAs including corticotropinomas in the first decade followed by relative upsu...

Objective: The aim of this study was to evaluate the difference between the incidence of hypoglycemia in those preterm newborns who were exposed to steroids and those who were not.Methodology: This is a prospective cohort study of preterm infants born between 2017 and 2018 at a gestational age of 26 to 34 6/7 weeks in the Hospital Universitario de Santander- HUS- in Bucaramanga, Colombia.Results: 128 preterm infants were e...

Background: Dyshormonogenic hypothyroidism is classically a monogenic disease with recessive inheritance. Thyroid dysgenesis showed a multigenic origin in a mouse model of double-heterozygous deletions of Nkx2.1/Pax8 transcription factor genes, suggesting a possible polygenic nature of certain cases of human hypothyroidism.Objective and Hypotheses: To investigate genetic traits of polygenic involvement in dyshormonogenic hypothyroidism,...

Introduction: The MAMLD1 gene is expressed in fetal and adult testes. It contributes to the development and formation of the male external genitalia in late stages of fetal organogenesis (week 8-12) and to testosterone biosynthesis. The pathogenic genetic variants of this gene determine a significant reduction in plasma testosterone concentrations, although they are not undetectable. Its most common phenotypic manifestation is hypospadias, also described in patients with micro...

Introduction: Congenital hypopituitarism is a heterogeneous disorder with isolated hormone deficiency(IPHD) or combined(CPHD). Main risk factors for CPHD include H-P abnormalities such agenesis corpus callosum(ACC), anterior pituitary hypoplasia(APH), ectopic posterior pituitary(EPP), pituitary stalk interruption(PSI), septo-optic dysplasia(SOD), and holoprosencephaly(HPE).Patients and Methods: Prospective and longitudin...

Introduction: Differential diagnosis of partial arginine vasopressin deficiency (P-AVPD) and primary polydipsia (PP) can be challenging. Arginine-stimulated copeptin concentrations have been used to differentiate between arginine vasopressin deficiency (AVPD) and PP, setting a copeptin value of 3.8pmol/L at 60 min as a cut-off point in adults.Objective: To evaluate the efficacy and safety of the arginine-stimulated test ...

Introduction: IPEX syndrome is a syndrome characterized by the following triad: immune dysregulation, polyendocrinopathy and X-linked enteropathy. It is produced by a variant in the FOXP3 gene. It is a rare disease with poor prognosis.Clinical case: We are reporting the case of a boy, 2nd child of non-consanguineous parents, normal pregnancy. Born at 39 weeks of gestational age, birth weight 2985 grams and length 49 cent...

Introduction: Hypoglycemia due to Congenital hyperinsulinism is a phenotypically heterogeneous disease. Depending on the cause it is most frequently seen in the neonatal period but it can present later in life, with risk of neurological complications in the event of late diagnoses.Clinical Case: Patient with a normal perinatal history, born at 40 weeks, weight 3600 grams and 50.5 centimeters of length. Because caf&eacute...