ISSN 1662-4009 (online)

ey0019.9-15 | Bone health in chronic disease | ESPEYB19

9.15. Bone health in pediatric patients with Crohn disease

S Rozes , S Guilmin-Crepon , M Alison , E Thomas , JP Hugot , J Viala , C Martinez-Vinson

christine.martinez-vinson@aphp.fr J Pediatr Gastroenterol Nutr. 2021; 73: 231-235. PMID: 33908740.Brief Summary: This retrospective study evaluated longitudinal changes in bone mineral density (BMD) in children and adolescents with Crohn disease (CD), and the risk factors for low BMD. Low BMD (defined as BMD Z score ≤ -2.0) was present in 18.7% of patients at diagnosis and in 16% at ...

ey0019.11-11 | Weight regulation and endocrine circuits (including interventions) | ESPEYB19

11.11. The pubertal growth spurt is diminished in children with severe obesity

A Holmgren , GA Martos-Moreno , A Niklasson , J Martinez-Villanueva , J Argente , K Albertsson-Wikland

anton.holmgren@regionhalland.se Pediatr Res. 2021 Jul;90(1):184–190. doi: 10.1038/s41390-020-01234-3.Brief Summary: This observational study compared the pubertal growth spurt of children in a Spanish study group with severe early onset obesity to children in a Swedish community-based study. The authors show that childhood obesity i...

ey0020.1-2 | Antenatal and Perinatal Thyroidology | ESPEYB20

1.2. DIO3 protects against thyrotoxicosis-derived cranio-encephalic and cardiac congenital abnormalities

ME Martinez , I Pinz , M Preda , CR Norton , T Gridley , A Hernandez

Brief summary: In utero the embryo and the fetus are protected by different mechanisms from too high levels of maternal thyroid hormones after transplacental passage such as deiodination and sulfatation of T4 and T3 in the placenta as well as in the tissues of the unborn child (1,2). Maternal hyperthyroidism and its treatment with anti-thyroid drugs is associated with different congenital malformation. However, so far, it remains unclear, which malformations are linke...

ey0021.1-6 | Novel Genes | ESPEYB21

1.6. Knockout mice with pituitary malformations help identify human cases of hypopituitarism

Martinez-Mayer J. , Brinkmeier M.L. , O'Connell S.P. , Ukagwu A. , Marti M.A. , Miras M.

Brief Summary: This elegant study analysed a phenotype-driven screen for developmental lethal mouse genes to identify candidate genes that drive hypothalamo-pituitary phenotypes.The authors used a publicly-available phenotype-driven screen, performed by the mouse models phenotyping facility at the DMDD Wellcome Sanger Institute, to identify key genes important in pituitary development. High-Resolution Episcopic Microscopy (HREM) from 209 knockout lines w...

ey0015.8-18 | New Paradigms | ESPEYB15

8.18 PKA signaling drives reticularis differentiation and sexually dimorphic adrenal cortex renewal

T Dumontet , I Sahut-Barnola , A Septier , N Montanier , I Plotton , F Roucher-Boulez , V Ducros , AM Lefrançois-Martinez , JC Pointud , M Zubair , KI Morohashi , DT Breault , P Val , A Martinez

To read the full abstract: JCI Insight. 2018;3(2). pii: 98394The (human) adrenal cortex undergoes massive changes in structure and function from fetal to postnatal life, with the first consisting of a small outer definitive zone and a larger inner fetal zone, and the latter finally consisting of three distinct layers, namely the zona glomerulosa (ZG), fasciculata (ZF) and reticularis (ZR). Ho...

ey0019.15-9 | Assorted Conditions | ESPEYB19

15.9. Genetic insights into biological mechanisms governing human ovarian ageing

KS Ruth , FR Day , J Hussain , A Martinez-Marchal , CE Aiken , A Azad , DJ Thompson , et al.

Nature. 2021;596(7872):393-7. doi: 10.1038/s41586-021-03779-7.PubMed ID: 34349265Brief summary: This study analysed genome-wide association array (GWAS) data on ~200 000 women of European ancestry to identify 290 separate genetic signals associated with normal variation in age at natural menopause (ANM). Experimental alterations of key identified genes in mouse models confirmed their impac...

ey0015.1-6 | New mechanisms | ESPEYB15

1.6 Hypothalamic sonic hedgehog is required for cell specification and proliferation of LHX3/LHX4 pituitary embryonic precursors

G Carreno , JR Apps , EJ Lodge , L Panousopoulos , S Haston , JM Gonzalez-Meljem , H Hahn , CL Andoniadou , JP Martinez-Barbera

To read the full abstract: Development 2017;144:3289-3302Aberrant development of the anterior pituitary can lead to congenital hypopituitarism (CH) in humans and hence understanding how this organ develops is critical to understand CH. The anterior pituitary develops in intimate contact with the prospective hypothalamus, which secretes growth factors that are required for the pituitary gland to grow...

ey0017.1-2 | Update on the Genetics of Hypopituitarism | ESPEYB17

1.2. Mutations in MAGEL2 and L1CAM are associated with congenital hypopituitarism and arthrogryposis

LC Gregory , P Shah , JRF Sanner , M Arancibia , J Hurst , WD Jones , H Spoudeas , P Le Quesne Stabej , HJ Williams , LA Ocaka , C Loureiro , A Martinez-Aguayo , MT Dattani

To read the full abstract: J Clin Endocrinol Metab. 2019 Dec 1;104(12):5737–5750. doi: 10.1210/jc.2019-00631. PMID: 31504653.This paper describes two genes and three syndromes that clinicians would probably like to know when treating patients with a syndromic form of panhypopituitarism. Heterozygous mutation in a maternally imprinted gene, MAGEL2, was described in four patients...

ey0017.15-9 | (1) | ESPEYB17

15.9. Prevalence and trends of overweight and obesity in European children from 1999 to 2016: A systematic review and meta-analysis

M Garrido-Miguel , I Cavero-Redondo , C Alvarez-Bueno , F Rodriguez-Artalejo , LA Moreno , JR Ruiz , W Ahrens , V Martinez-Vizcaino

To read the full abstract: JAMA Pediatr. 2019 Aug 5;173(10):e192430. doi: 10.1001/jamapediatrics.2019.2430.The authors systematically reviewed published evidence on the prevalence of overweight and obesity in children aged 2–13 years. Based on data on 477 620 children from 28 European countries, they conclude that the prevalence is very high but appears to have stabilized in ...

ey0021.6-5 | Clinical and Molecular Insights into SF1 Deficiency | ESPEYB21

6.5. Clinical and genetic characteristics of a large international cohort of individuals with rare NR5A1 /SF-1 variants of sex development

C Kouri , G Sommer , I Martinez de Lapiscina , RN Elzenaty , LJW Tack , M Cools , SF Ahmed , CE; SF1next study group Fluck

Brief Summary: The SF1next study describes a cohort of 197 individuals with NR5A1 / SF-1 variants, identified through the I-DSD registry and a research network involving 55 centers across 18 countries. NR5A1/SF-1 plays a crucial role in the development and function of human sex and steroid producing organs, and variants in this gene can significantly affect early sex determination and differentiation. This can lead to a wide spectrum of differences i...