hrp0084p3-795 | DSD | ESPE2015

Polymorphisms and Mutations of the Genes INSL3 and HOXD13 in the Pathogenesis of Isolated Cryptorchidism in Greece

Vappa Sofia , Sofocleous Christalena , Nikas Konstantinos , Mastorakos Georgios , Kanavakis Emmanouel , Kanaka-Gantenbein Christina

Background: Current literature suggests an important role of both endocrine disruptors and genetic factors in the occurrence of cryptorchidism.Objective and hypotheses: The aim of the study is to investigate the impact of variants in INSL3 and HOXD13 genes in the pathogenesis of isolated cryptorchidism in Greece. 43 boys with isolated cryptorchidism and 50 healthy non-cryptorchidic boys (control group) were enrolled.<p class="abstex...

hrp0084p3-1109 | Pituitary | ESPE2015

Acute Phase Proteins and Endocrine Dysfunction after Traumatic Brain Injury in Childhood

Verigaki Olga , Papassotiriou Ioannis , Prodromou Neofytos , Sfakianos George , Chrousos George , Kanaka-Gantenbein Christina

Background: Endocrine impairments, such as diabetes insipidus (DI), growth hormone deficiency (GHD) and, to a lesser degree, thyroid or cortisol deficiencies, have been reported after traumatic brain injury (TBI) in adults and much less in children both at the acute post-traumatic phase and after a lag period of time. However, no prospective data exist on the endocrine and acute phase protein response to TBI in childhood.Aim/objective: To unravel possibl...

hrp0094p2-32 | Adrenals and HPA Axis | ESPE2021

Congenital Adrenal Hyperplasia caused by homozygous pathogenic variant in the HSD3B2 gene.

Fylaktou Eirini , Christoforidis Athanasios , Moutsanas Vissarios , Sertedaki Amalia , Kanaka-Gantenbein Christina ,

Introduction: Congenital Adrenal Hyperplasia (CAH) is an autosomal recessive disorder caused by impairment of one of the enzymes involved in the steroidogenesis pathway. 3βhydroxysteroid dehydrogenase type 2 deficiency (3βHSD2 deficiency) is a rare form of CAH (<0.5%) due to pathogenic variants in the HSD3B2gene encoding for the enzyme Type 2 3β-hydroxysteroid dehydrogenase Δ4–Δ5isomerase (3&#946...

hrp0097p1-349 | Pituitary, Neuroendocrinology and Puberty | ESPE2023

Compound heterozygous variants in ROBO1 gene cause CPHD and middle line defects

Sertedaki Amalia , Macropoulou Panagiota , Nikaina Eirini , Binou Maria , Farakla Ioanna , Siahanidou Tania , Kanaka-Gantenbein Christina

Abstract: Combined Pituitary Hormone Deficiency (CPHD) is characterized by growth hormone and at least one other pituitary hormone deficiency. It is of varying etiology, extent and severity and it usually occurs sporadically with only 10% of cases being familial. Although pathogenic variants in more than 30 genes expressed during the development of the head, hypothalamus and/or pituitary have been identified so far to cause genetic forms of CPHD, the aetiology...

hrp0097p2-58 | Bone, Growth Plate and Mineral Metabolism | ESPE2023

Kenny Caffey syndrome 2; expanding the clinical spectrum

Hatziagapiou Kyriaki , Sertedaki Amalia , Dermentzoglou Vasiliki , Kanaka-Gantenbein Christina , D. Sakka Sophia

Background: Kenny–Caffey syndrome 2 (KCS 2) is a rare cause of hypoparathyroidism, characterized by proportionate short stature, cortical thickening and medullary stenosis of tubular long bones, delayed closure of anterior fontanel and eye abnormalities.Objective: We report the case of a 4-years’-old boy, who presented with the characteristic, and newly identified clinical, biochemical, radiological and genet...

hrp0098fc10.4 | Multisystem Endocrine Disorders | ESPE2024

A novel de novo SAMD9 gene variant causing MIRAGE syndrome associated with steroid-resistant nephrotic syndrome in a 46,XY male.

Farakla Ioanna , Sertedaki Amalia , Barbara Tatsi Elizabeth , Sandu Adina , Kanaka-Gantenbein Christina

Introduction: MIRAGE syndrome (Myelodysplasia, Infections, Restriction of growth, Adrenal hypoplasia, Genital phenotypes, Enteropathy, OMIM# 617053), is a congenital disorder caused by heterozygous gain of function mutations in the growth repressor gene SAMD9, inherited autosomal dominantly, although de novo variants are often reported. The syndrome was first described in 2016 and to date various cases have been reported, presenting a wide sp...

hrp0098p1-73 | Multisystem Endocrinology | ESPE2024

A young patient with paraganglioma due to a novel SDHB gene pathogenic variant.

Lymniati Christina , Sertedaki Amalia , Kyriakopoulos Georgios , Kanaka-Gantenbein Christina , Tsentidis Charalampos

Introduction: Paragangliomas are rare neuroendocrine neoplasms, that derive from the chromaffin cells of the neural crest. They originate from the extra-adrenal paraganglia and are divided into sympathetic and parasympathetic. They are classified into three different molecular clusters, depending on the underlying gene mutations, in any of at least 20 identified genes: cluster I Pseudo-hypoxia, cluster II Kinase signaling, cluster III Wnt signaling. Half of th...

hrp0098p1-266 | Growth and Syndromes 4 | ESPE2024

AFMS (Achondroplasia Foramen Magnum Score) in a case series; correlation with clinical manifestations, and sleep studies.

Hatziagapiou Kyriaki , Georgakopoulou Danai , Polytarchou Anastasia , Moudaki Aggeliki , Kanaka-Gantenbein Christina , D Sakka Sophia

Background: Achondroplasia (ACH) is an autosomal dominant condition, resulting from pathogenic missense FGFR3 (fibroblast-growth-factor receptor-3) variants. Foramen magnum stenosis (FMS) is a severe complication, with infants and younger children being at higher risk. FMS may be asymptomatic or cause cervical-medullary compression (CMC), presenting with hydrocephalus, hypotonia or hypertonia, central sleep apnea and sudden death. The scope of the stu...

hrp0098p2-13 | Adrenals and HPA Axis | ESPE2024

X-linked adrenoleukodystrophy in two male siblings; Endocrinological aspects of the disease, and therapeutic approaches.

Hatziagapiou Kyriaki , Dolianiti Maria , D. Sakka Sofia , Kokkinou Eleftheria , Pons Roser , Kanaka-Gantenbein Christina

Introduction: X-linked adrenoleukodystrophy (X-ALD) is a cause of primary adrenocortical insufficiency. It is associated with accumulation of very long chain fatty acids (VLCFA), due to peroxisome dysfunction. X-ALD is caused by pathogenic variants of the ABCD1, which encodes an ATP-binding cassette transport protein, and is inherited in X-linked recessive mode. There is no known genotype-phenotype correlation, and the degree of VLCFA elevation does n...

hrp0098p2-295 | Thyroid | ESPE2024

Graves' Disease in Children and Adolescents: A 10 years’ retrospective analysis of patients followed in a Single Center

Gkougkouli Eleni , Dolianiti Maria , Vasilakis Ioannis-Anargyros , Sakka Sofia , Nikolaides Nicolas , Mpinou Maria , Kanaka Gantenbein Christina

Introduction: /Purpose: Graves' disease is the most common cause of hyperthyroidism in children and adolescents. It is an autoimmune disorder characterized by stimulating autoantibodies, leading to increased thyroid hormone release and thyrotoxicosis. Early initiation and long-term treatment, remission, and definitive treatment with thyroidectomy or radioactive iodine present a challenge. This study aims to record the data of patients with Graves' disease foll...