hrp0082fc13.1 | Thyroid | ESPE2014

Massive Sequencing of Thyroidal Genes Reveals Unexpected Polygenic Defects in Dyshormonogenic Hypothyroidism

Iglesias A , Garcia M , Ventura P , Pozo J , Clemente M , Audi L , Corripio R , Garikano K , Polak M , del Pozo A , Visser T J , Moreno J C

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,...

hrp0084fc7.1 | Growth-promoting therapies | ESPE2015

Safety and Effectiveness of Increlex® Therapy in Children with Laron Syndrome and Enrolled in the European Increlex® Growth Forum Database in Europe

Bang Peter , Polak Michel , Woelfle Joachim , Houchard Aude , Sert Caroline

Background: The post-authorisation registry, European Increlex® Growth Forum Database (EU-IGFD), initiated in December 2008, collects data in children receiving Increlex (mecasermin (rDNA origin) injection) for growth failure, including Laron syndrome (LS) (severe primary IGF1 deficiency with confirmed GH-receptor mutation).Objective and hypotheses: Report safety and effectiveness data in children with LS.Method: Multicentre, ...

hrp0097p1-307 | Growth and Syndromes | ESPE2023

A unique combination of Klinefelter syndrome and Three M Syndrome in a boy with short stature

Lee Mi-Seon , Lee Rosie , Lee Sang-Eun , Kwak Na-eun , Kwon Soon-Hak , Moon Jung-Eun

Introduction: Klinefelter syndrome (KS) is most common sex chromosomal aneuploidy in males. The typical clinical features are tall stature with long extremities, small testis, and learning disabilities. Three M syndrome is an extremely rare genetic disorder characterized by short stature, craniofacial abnormality and skeletal malformations. We report a unique case of short stature in KS due to three M syndrome.Case: A 9-...

hrp0094p1-50 | Sex Endocrinology and Gonads A | ESPE2021

Pathogenic variants in the human m6A reader YTHDC2 are associated with primary ovarian insufficiency

McGlacken-Byrne Sinead M , Torres Ignacio Del Valle , Stabej Polona Le Quesne , Belutti Laura , Ocaka Louise , Ishida Miho , Suntharalingham Jenifer P , Genomics UCL , Discovery GOSgene , Resource Human Developmental Biology , Dattani Mehul T , Kelberman Dan , Lagos Carlos F , Livera Gabriel , Conway Gerard S , Achermann John C ,

Background: Primary ovarian insufficiency (POI) is genetically mediated in up to 30% of cases. Many genes associated with POI have roles in early ovary developmental processes, including meiosis.Objectives: We investigated the genetic mechanism underlying early-onset POI in three young women presenting with absent puberty: two sisters from a consanguineous pedigree and a third unrelated proband.<st...

hrp0094p2-442 | Sex differentiation, gonads and gynaecology or sex endocrinology | ESPE2021

Persistent Müllerian duct syndrome presenting with bilateral cryptorchidism and obstructed inguinal hernia

Vlachopapadopoulou Elpis-Athina , Fotiadou Anatoli , Picard Jean-Yves , Achilleos Orthodoxos , Lamprinou Zoe , Tzortzopoulou Adelais , Passalidis Alexandros , Michalacos Stephanos

Background: Persistent Müllerian duct syndrome (PMDS) is a Disorder of Sex Development (DSD) caused by mutations in genes encoding anti-Müllerian hormone (AMH) or its type II receptor (AMHR2) with autosomal recessive transmission. Objective: To report a case of transverse testicular ectopia (TTE), associated with PMDS, initially presented as an obstructed inguinal hernia.Case presentation: An 18- days- old male infant, wi...

hrp0086s2.2 | Genetics and epigenetics of thyroid dysgenesis | ESPE2016

Genetics of Thyroid Dysgenesis and Associated Malformations

Polak Michel

Thyroid dysgenesis (TD) is the most common cause of congenital hypothyroidism in iodine sufficient regions. TD includes a broad spectrum of developmental anomalies varying from absence of thyroid (athyreosis) to an abnormally located thyroid (ectopy), small (hypoplasia) or asymmetric thyroid. Thyroid dysgenesis is usually sporadic, but up to 2% of cases is familial. Genetics of TD is complex and advances in developmental biology over the past two decades revealed monogenetic f...

hrp0084wg2.2 | Diabetes Technology and Therapeutics Thursday, 1 October | ESPE2015

The Pros and Cons of Using Sulfonylurea before Genetic Testing in Neonatal Diabetes Mellitus

Polak Michel

Background: Very early onset diabetes mellitus (neonatal diabetes mellitus (NDM)) seems to be unrelated to autoimmunity in most instances. A number of conditions are associated with NDM, some of which have been elucidated at the molecular level. Among these, the recently elucidated mutations in the KCNJ11 and ABCC8 genes, encoding the Kir6.2 and SUR1 subunit of the pancreatic KATP channel involved in regulation of insulin secretion, account for one...

hrp0094ern1.1 | Endo-ERN Symposium | ESPE2021

Update on the consensus on Congenital Hypothyroidism: a patient-centered approach

Polak Michel ,

Background: An ENDO-ERN initiative was launched which was endorsed by the European Society for Pediatric Endocrinology and the European Society for Endocrinology with 22 participants from the ENDO-ERN and the two societies. The aim was to update the practice guidelines for the diagnosis and management of congenital hypothyroidism (CH). A systematic literature search was conducted to identify key articles on neonatal screening, diagnosis and management of prima...

hrp0094p1-119 | Fat, Metabolism and Obesity B | ESPE2021

Diagnostic precision of the Tri-Ponderal Mass Index (kg/m3) to identify the metabolic risk phenotype in obese children and adolescents.

Arciniegas Larry , Tomasini Rosangela , Vega Elizabeth , Fabregas Ana , Clemente Maria , Yeste Diego ,

Introduction: The metabolically healthy obese phenotype (MHOF) defines obese patients who have preserved insulin sensitivity and who do not have metabolic complications: lower risk of cardiovascular disease and type 2 diabetes in adulthood. Recent studies indicate that TMI (kg/m3) estimates the percentage of body fat more accurately than the BMI and it has been proposed to substitute the use of the BMI z-score values by those of the TMI. TMI values ...

hrp0084p2-479 | Growth | ESPE2015

Moya Moya Syndrome in a Patient with Growth Hormone Deficiency and Hypergonadotropic Hypogonadism: to Treat or not to Treat with Growth Hormone Therapy?

Briceno Laura Gabriela Gonzalez , Stoupa Athanasia , Pinto Graziella , Touraine Philippe , Polak Michel

Background: Moya Moya disease is a chronic cerebrovascular angiopathy characterized by progressive stenosis of terminal part of internal carotid vessels and the compensatory development of collateral vessels. We present here the case of a young boy with growth hormone deficiency (GHD) and testicular insufficiency that was diagnosed with Moya Moya syndrome.Case presentation: A 12.9 year-old boy of Serbian origin was referred to the Endocrinology Departmen...