hrp0092p3-238 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology | ESPE2019

Bilateral Testicular Atrophy and Normal Inhibin B level: A Paradoxal Clinical Finding For A Rare Biochemical Cause !

ESSADDAM Leïla , PIKETTY Marie , KALLALI Wafa , GUEDRI Rahma , GONZALEZ Laura , MATTOUSSI Nadia , POLAK Michel , BEN BECHER Saayda

Background: Testicular atrophy is a rare complication following inguinal hernia repair particularly in children<2 years and those with an undescended testis at highest risk> with an undescended testis. Inhibin B is secreted from the testis as a product of Sertoli cells, and has been suggested as a good marker for spermatogenesis. Its value is expected to be very low in children with bilateral testicular atrophyCase Report...

hrp0086p1-p745 | Pituitary and Neuroendocrinology P1 | ESPE2016

Constitutional Delay of Puberty or Hypogonadotropic Hypogonadism: Diagnostic Value of Inhibin B and AMH Measurements

Istanbullu Sibel , Lahlou Najiba , Chevenne Didier , Leger Juliane , Carel Jean-Claude , Martinerie Laetitia

Background: Boys with delayed puberty represent one of the main cause for pediatric endocrine referrals. Although the majority of them have constitutional delay of growth and puberty (CDGP), it is important to identify isolated hypogonadotropic hypogonadism (IHH) for optimal management.Objective and hypotheses: The aim of the study was to evaluate the usefulness of inhibin B and AMH as biological markers for distinguishing between CDGP and IHH.<p cla...

hrp0094fc5.2 | Sex Development and Gender Incongruence | ESPE2021

Unexpected impact of sex hormones on B-cells in trans- and cis-gendered healthy young people

Peckham Hannah , Rosser Elizabeth C , Radziszewska Anna , Robinson George , Martin-Gutierrez Lucia , De Gruijter Nina M , Jury Elizabeth C , Butler Gary E , Ciurtin Coziana ,

Background: Cis-gender females are known to mount stronger immune responses to invading pathogens or vaccines than cis-gender males. However, this is also associated with increased risk of autoimmunity. Little is known about the immunophenotypes of transgender individuals on gender-affirming hormonal treatment, despite growing evidence that hormones influence the immune system. Via the process of class-switch recombination (CSR), B-cell immunoglobulin isotype ...

hrp0084fc14.4 | Puberty | ESPE2015

Genetic Variation of AMH Signaling Affects AMH and Inhibin B Levels in Healthy Peripubertal Girls

Hagen Casper P , Almstrup Kristian , Main Katharina M , Juul Anders

Background: Anti-Müllerian hormone (AMH) is produced by small growing ovarian follicles. It inhibits both FSH induced maturation of follicles as well as aromatase activity. Genetic variation of AMH signalling is associated with age at menopause and circulating oestradiol levels, i.e. AMH rs10407022 T>G (intragenic) and AMHR2 rs11170547 C>T (putative enhancer).Objective and hypotheses: This present study aims to investigate ...

hrp0097p2-314 | Late Breaking | ESPE2023

Evaluation of the usefulness of antymüllerian hormone and inhibin B as markers of ovarian reserve in girls with hyper- and hypogonadotropic hypogonadism

Latyshev Oleg , Kabolova Kseniya , Okminyan Goar , Kiseleva Elena , Romaykina Daria , Samsonova Lubov

Hypogonadism is represented by a hypo- and hypergonadotropic variant. Antymüllerian hormone (AMH) and inhibin B are used to assess ovarian reserve, but in pediatric practice their role has not been studied. The main interest is to conduct the study of ovarian reserve in hypogonadism among girls.Objective of the Research: To compare the content of inhibin B, AMH and estradiol in girls with hyper- and hypogonadotropic hypogonadism...

hrp0097p1-197 | Thyroid | ESPE2023

Effects of methimazole therapy on effector T and B regulatory cells in pediatric patients with Graves' disease

Stożek Karolina , Grubczak Kamil , Starosz Aleksandra , Bossowski Filip , Moniuszko Marcin , Bossowski Artur

Introduction: The incidence of autoimmune thyroid diseases (ATD) is constantly rising. Graves’ disease (GD) remains the most common cause of thyrotoxicosis in pediatric population, but the exact pathogenesis of GD is still not fully understood. The immunological basis of ATD assumes an imbalance between effector and regulatory T lymphocytes. B regulatory cells (Breg) are able to suppress the pro-inflammatory properties of effector T cells. Methimazole (M...

hrp0084p2-566 | Thyroid | ESPE2015

Analysis of B Regulatory Cells with Phenotype CD19+CD24hiCD27+IL-10+ and CD19+IL-10+ in the Peripheral Blood of Children with Graves’ Disease and Hashimoto’s Thyroiditis

Bossowski Artur , Grubczak Kamil , Singh Paulina , Radzikowska Urszula , Dabrowska Milena , Sawicka Beata , Bossowska Anna , Moniuszko Marcin

Background: Autoimmune thyroid disease (AITD) is the most common organ-specific autoimmune disorder. Genetic background, environmental and endogenous factors are play important roles in determining the activation of immune cells or the efficacy of the immunoregulatory pathways. Recently emphasizes the immunosuppressive role of B regulatory cells (phenotype CD19+CD24hiCD27+IL-10+, CD19+IL-10+) in regulation of immune respon...

hrp0089p2-p176 | Fat, Metabolism and Obesity P2 | ESPE2018

Identification of A Novel Homozygous Mutation in BBS10 in Five Children With Bardet-Biedl Syndrome

Yilmaz Gulay Can , Keskin Ece , Sobu Elif

Bardet-Biedl syndrome (BBS) is a rare and multisystemic disorder characterized by rod-cone dystrophy, post-axial polydactyly, learning difficulties, renal abnormalities, obesity and hypogonadism. The disorder is genetically heterogeneous. To date, 21 genes present on different chromosomes have been mapped. The most common genes are BBS1 (locus 11q13) and BBS10 (locus 12q21.2). We aimed to report two family with five affected children with typical clinical features of Bardet-Bi...

hrp0089p3-p290 | Pituitary, Neuroendocrinology and Puberty P3 | ESPE2018

An Interesting Etiology in Childhood Central Diabetes Insipidus HIBERNOMA

Ergur Ayca Torel , Aslan Ayla , Canhilal Ece

Introduction: Central Diabetes Insipitus (CDI) results from the inability to secrete ADH secreted by the neurohypophysis system to control water-electrolyte metabolism. In the etiology of CDI many congenital and acquired CNS tumors, infiltrative diseases,infections, autoimmune events, head trauma and idiopathic can be responsible. In this article, a child case with CDI due to intracranial occurence which is very rare in etiology is presented and the approach and follow up are ...

hrp0084p3-680 | Bone | ESPE2015

Efficacy and Safety of Oral Alendronate Treatment in Children and Adolescents with Osteoporosis

Buyukgebiz Atilla , Bober Ece , Abaci Ayhan

Background: Osteoporosis is very rare in childhood and main reasons are growth retardation, immobilisation, calcium and vitamin D deficiency, long term steroid therapy. There is no concensus about the treatment of children and adolescents with osteoporosis. Biphosphonates have been important in the treatment of osteoporosis.Objective and hypotheses: To evaluate the efficacy and safety of oral alendronate on bone mineral density (BMD) in children and adol...