ISSN 1662-4009 (online)

ey0018.3-14 | Clinical studies | ESPEYB18

3.14. Identification of resistance to exogenous thyroxine in humans

N Lacamara , B Lecumberri , B Barquiel , A Escribano , I Gonzalez-Casado , C Alvarez-Escola , F Aleixandre-Blanquer , F Morales , R Alfayate , MC Bernal-Soriano , R Miralles , I Yildirim Simsir , AG Ozgen , J Bernal , P Berbel , JC Moreno

Thyroid. 2020;30:1732–1744. doi: 10.1089/thy.2019.0825.This study is of importance, revealing a relevant clinical problem in patients under long-term levothyroxine (LT4) substitution and challenging the concept that all hypothyroid patients can be well controlled with LT4 monotherapy.Lacámara et al. present a small but elegant clinical study describi...

ey0020.12-11 | Basic Research | ESPEYB20

12.11. Estradiol regulates leptin sensitivity to control feeding via hypothalamic Cited1

I Gonzalez-Garcia , E Garcia-Clave , A Cebrian-Serrano , O Le Thuc , RE Contreras , Y Xu , T Gruber , SC Schriever , B Legutko , J Lintelmann , J Adamski , W Wurst , TD Muller , SC Woods , PT Pfluger , MH Tschop , A Fisette , C Garcia-Caceres

Brief summary: This basic science study in mice shows how melanocortin neurons integrate reproductive signaling with energy homeostasis. In melanocortin neurons, estradiol (E2) enhances the anorectic action of leptin. Cited1 is enriched in these neurons and its loss exacerbates diet-induced obesity in female mice. Using several specific mouse models it is demonstrated how hypothalamic Cited1, via ERα and Stat3 interactions, link the effects of E2 and leptin on food intake...

ey0021.6-6 | Clinical and Molecular Insights into SF1 Deficiency | ESPEYB21

6.6. A conserved NR5A1-responsive enhancer regulates SRY in testis-determination

D Houzelstein , C Eozenou , CF Lagos , M Elzaiat , J Bignon-Topalovic , I Gonzalez , V Laville , L Schlick , S Wankanit , P Madon , J Kirtane , A Athalye , F Buonocore , S Bigou , GS Conway , D Bohl , JC Achermann , A Bashamboo , K McElreavey

Brief Summary: This study identified a conserved enhancer element located 5’ of the mammalian SRY gene through comparative genomic analysis, which plays a crucial role in the regulation of sexual differentiation. NR5A1 binds to this element. The researchers discovered two distinct hemizygous base pair substitutions within this NR5A1 binding site, both of which involve highly conserved residues: one in a sporadic case of XY sex reversal and the other in a large fa...

ey0019.4-9 | New Perspectives | ESPEYB19

4.9. High prevalence of variants in skeletal dysplasia associated genes in individuals with short stature and minor skeletal anomalies

L Sentchordi-Montane , S Benito-Sanz , M Aza-Carmona , F Diaz-Gonzalez , S Modamio-Hoybjor , la Torre C De , J Nevado , P Ruiz-Ocana , C Bezanilla-Lopez , P Prieto , P Bahillo-Curieses , A Carcavilla , I Mulero-Collantes , AC Barreda-Bonis , J Cruz-Rojo , J Ramirez-Fernandez , de la Vega JA Bermudez , AM Travess , J Gonzalez de Buitrago Amigo , A Del Pozo , E Vallespin , M Solis , C Goetz , A Campos-Barros , F Santos-Simarro , I Gonzalez-Casado , P Ros-Perez , M Parron-Pajares , KE Heath

Eur J Endocrinol, 2021. 185(5): p. 691-705. PMID: 34516402Brief Summary: This study evaluated the prevalence of genetic variants in children with idiopathic short stature (ISS) using next-generation sequencing (NGS). Heterozygous variants in known genes involved in skeletal physiology were identified in almost 20% of children. The use of advanced genetic analysis techniques will lead to an increased identification of new genetic variants, expand...