ISSN 1662-4009 (online)

ey0020.13-12 | Section | ESPEYB20

13.12. Embryo model completes gastrulation to neurulation and organogenesis

G Amadei , CE Handford , C Qiu , J De Jonghe , H Greenfeld , M Tran , BK Martin , DY Chen , A Aguilera-Castrejon , JH Hanna , MB Elowitz , F Hollfelder , J Shendure , DM Glover , M Zernicka-Goetz

In Brief: The authors created mouse embryos in the laboratory from a combination of multiple stem cell lines. These embryos were developed ex vivo up to the equivalent of day 8.5 post-fertilization. Embryos developed within an extraembryonic yolk sac and were similar to whole natural embryos, with defined forebrain and midbrain regions, a beating heart-like structure, a neural tube and somites, a tail bud containing neuromesodermal progenitors, a gut tube, and also pr...

ey0018.5-1 | Novel treatments for rare skeletal disorders | ESPEYB18

5.1. Once-daily, subcutaneous vosoritide therapy in children with achondroplasia: a randomised, double-blind, phase 3, placebo-controlled, multicentre trial

R Savarirayan , L Tofts , M Irving , W Wilcox , CA Bacino , J Hoover-Fong , R Ullot Font , P Harmatz , F Rutsch , MB Bober , LE Polgreen , I Ginebreda , K Mohnike , J Charrow , D Hoernschemeyer , K Ozono , Y Alanay , P Arundel , S Kagami , N Yasui , KK White , HM Saal , A Leiva-Gea , F Luna-Gonzalez , H Mochizuki , D Basel , DM Porco , K Jayaram , E Fisheleva , A Huntsman-Labed , J Day

Lancet. 2020 Sep 5;396(10252):684–692. Abstract: https://pubmed.ncbi.nlm.nih.gov/32891212/In brief: Activating mutations in FGFR3 inhibit endochondral ossification in achondroplasia resulting in disproportionate extreme short stature. In this randomised, double-blind, phase 3, placebo-controlled trial, once-daily subcutaneous treatment with vosoritide, a C-type natriuretic pep...

ey0019.1-6 | Genetics | ESPEYB19

1.6. High-throughput splicing assays identify missense and silent splice-disruptive POU1F1 variants underlying pituitary hormone deficiency

P Gergics , C Smith , H Bando , AAL Jorge , D Rockstroh-Lippold , SA Vishnopolska , F Castinetti , M Maksutova , LRS Carvalho , J Hoppmann , Mayer J Martinez , F Albarel , D Braslavsky , A Keselman , I Bergada , MA Marti , A Saveanu , A Barlier , Jamra R Abou , MH Guo , A Dauber , M Nakaguma , BB Mendonca , SN Jayakody , AB Ozel , Q Fang , Q Ma , JZ Li , T Brue , Millan MI Perez , IJP Arnhold , R Pfaeffle , JO Kitzman , SA Camper

Am J Hum Genet. 2021 Aug 5;108(8):1526-1539. doi: 10.1016/j.ajhg.2021.06.013. PMID: 34270938.Brief Summary: This study reports splice-disruptive variants in POU1F1 in 4 families with hypopituitarism and uses a high-throughput splicing reporter assay to create a comprehensive catalogue of such variants in or near exon 2 of the gene. The catalogue paves the way for identifying synon...

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...

ey0017.14-10 | (1) | ESPEYB17

14.10. Low-dose aspirin for the prevention of preterm delivery

MK Hoffman , SS Goudar , BS Kodkany , M Metgud , M Somannavar , J Okitawutshu , A Lokangaka , A Tshefu , CL Bose , A Mwapule , M Mwenechanya , E Chomba , WA Carlo , J Chicuy , L Figueroa , A Garces , NF Krebs , S Jessani , F Zehra , S Saleem , RL Goldenberg , K Kurhe , P Das , A Patel , PL Hibberd , E Achieng , P Nyongesa , F Esamai , EA Liechty , N Goco , J Hemingway-Foday , J Moore , TL Nolen , EM McClure , M Koso-Thomas , M Miodovnik , R Silver , RJ Derman , ASPIRIN Study Group

To read the full abstract: Lancet. 2020 Jan 25;395(10220):285-293. doi: 10.1016/S0140-6736(19)32973-3.This randomised, placebo-controlled trial (‘ASPIRIN’) in 11,976 nulliparous women in six low or middle-income countries (India, Democratic Republic of the Congo, Guatemala, Kenya, Pakistan, and Zambia) found that low-dose aspirin (81 mg daily from early pregnancy) reduced t...

ey0020.5-8 | Clinical Guidance and Studies | ESPEYB20

5.8. GnRH replacement rescues cognition in Down syndrome

M Manfredi-Lozano , V Leysen , M Adamo , I Paiva , R Rovera , JM Pignat , FE Timzoura , M Candlish , S Eddarkaoui , SA Malone , MSB Silva , S Trova , M Imbernon , L Decoster , L Cotellessa , M Tena-Sempere , M Claret , A Paoloni-Giacobino , D Plassard , E Paccou , N Vionnet , J Acierno , AM Maceski , A Lutti , F Pfrieger , S Rasika , F Santoni , U Boehm , P Ciofi , L Buee , N Haddjeri , AL Boutillier , J Kuhle , A Messina , B Draganski , P Giacobini , N Pitteloud , V Prevot

Brief summary: This study identified a new role for GnRH in higher brain function using a rodent model of Down Syndrome. It reports for the first time an improvement of cognitive functions in patients with Down Syndrome treated with pulsatile GnRH.GnRH neurons are classically described as a population of neurons located in the hypothalamus and responsible for the activation and regulation of the hypothalamic-pituitary-gonadal axis. However, the recent de...

ey0020.1-8 | Genetics | ESPEYB20

1.8. The severity of congenital hypothyroidism with gland-in-situ predicts molecular yield by targeted NGS

L Levaillant , N Bouhours-Nouet , F Illouz , JA Jager , A Bachelot , P Barat , S Baron , C Bensignor , AB De La Perriere , YB Djellas , M Caillot , E Caldagues , MN Campas , M Caquard , A Cartault , J Cheignon , A Decrequy , B Delemer , K Dieckmann , A Donzeau , E Doye , M Fradin , M Gaudilliere , F Gatelais , M Gorce , I Hazart , N Houcinat , L Houdon , M Ister-Salome , L Jozwiak , P Jeannoel , F Labarthe , D Lacombe , AS Lambert , C Lefevre , B Leheup , C Leroy , B Maisonneuve , I Marchand , E Marquant , M Muszlak , L Pantalone , S Pochelu , C Quelin , C Radet , P Renoult-Pierre , R Reynaud , S Rouleau , C Teinturier , J Thevenon , C Turlotte , A Valle , M Vierge , C Villanueva , A Ziegler , X Dieu , N Bouzamondo , P Rodien , D Prunier-Mirebeau , R Coutant

Brief summary: Over the recent years several publications reported on next generation sequencing (NGS) in cohorts of patients with congenital hypothyroidism (1). Based on these data, diagnostic yield was higher in patients with gland-in-situ, than with thyroid dysgenesis. Further studies performed NGS only in cohorts of patients with gland-in-situ, excluding thyroid dysgenesis forms such as athyreosis, ectopy, or hypoplasia (2). The publication of Levaillant ...

ey0019.15-4 | Diabetes | ESPEYB19

15.4. Four groups of type 2 diabetes contribute to the etiological and clinical heterogeneity in newly diagnosed individuals: An IMI DIRECT study

A Wesolowska-Andersen , CA Brorsson , R Bizzotto , A Mari , A Tura , R Koivula , A Mahajan , A Vinuela , JF Tajes , S Sharma , M Haid , C Prehn , A Artati , MG Hong , PB Musholt , A Kurbasic , F De Masi , K Tsirigos , HK Pedersen , V Gudmundsdottir , CE Thomas , K Banasik , C Jennison , A Jones , G Kennedy , J Bell , L Thomas , G Frost , H Thomsen , K Allin , TH Hansen , H Vestergaard , T Hansen , F Rutters , P Elders , L t'Hart , A Bonnefond , M Canouil , S Brage , T Kokkola , A Heggie , D McEvoy , A Hattersley , T McDonald , H Teare , M Ridderstrale , M Walker , I Forgie , GN Giordano , P Froguel , I Pavo , H Ruetten , O Pedersen , E Dermitzakis , PW Franks , JM Schwenk , J Adamski , E Pearson , MI McCarthy , S Brunak , Consortium ID

Cell Rep Med. 2022;3(1):100477. doi: 10.1016/j.xcrm.2021.100477. PubMed ID: 35106505Brief summary: To explore clinical heterogeneity, this study analyzed baseline visit data on 726 adults with newly diagnosed Type 2 diabetes (T2D) adults and identified in 4 distinct profiles (clusters of phenotypes), which predicted differences in subsequent disease progression and anti-diabetic treatments...

ey0017.3-12 | Clinical trials for thyroid disease | ESPEYB17

3.12. Effectiveness and safety of the tri-iodothyronine analogue Triac in children and adults with MCT8 deficiency: an international, single-arm, open-label, phase 2 trial

S Groeneweg , RP Peeters , C Moran , A Stoupa , F Auriol , D Tonduti , A Dica , L Paone , K Rozenkova , J Malikova , A van der Walt , IFM de Coo , A McGowan , G Lyons , FK Aarsen , D Barca , IM van Beynum , MM van der Knoop , J Jansen , M Manshande , RJ Lunsing , S Nowak , CA den Uil , MC Zillikens , FE Visser , P Vrijmoeth , MCY de Wit , NI Wolf , A Zandstra , G Ambegaonkar , Y Singh , YB de Rijke , M Medici , ES Bertini , S Depoorter , J Lebl , M Cappa , L De Meirleir , H Krude , D Craiu , F Zibordi , I Oliver Petit , M Polak , K Chatterjee , TJ Visser , WE Visser

To read the full abstract: Lancet Diabetes Endocrinol. 2019;7:695–706.The hallmarks of MCT8 deficiency are severe psychomotor retardation due to intracellular hypothyroidism in neuronal tissues and peripheral T3 thyrotoxicosis associated low weight, muscle wasting, high normal or increased heart rate and systolic blood pressure. TRIAC – the T3 analogue 3,3’,5-tri-iodothyroacetic acid – enters target cells in an MCT8 independe...

ey0015.2-2 | International consensus on Beckwith-Wiedemann Syndrome | ESPEYB15

International consensus on Beckwith-Wiedemann Syndrome

F Brioude , JM Kalish , A Mussa , AC Foster , J Bliek , GB Ferrero , SE Boonen , T Cole , R Baker , M Bertoletti , G Cocchi , C Coze , M De Pellegrin , K Hussain , A Ibrahim , MD Kilby , M Krajewska-Walasek , CP Kratz , EJ Ladusans , P Lapunzina , Y Le Bouc , SM Maas , F Macdonald , K Õunap , L Peruzzi , S Rossignol , S Russo , C Shipster , A Skórka , Tatton-Brown , J Tenorio , C Tortora , K Grønskov , I Netchine , RC Hennekam , D Prawitt , Z Tümer , T Eggermann , DJG Mackay , A Riccio , ER Maher

To read the full abstract: Nat Rev Endocrinol. 2018 Apr;14(4):229-249Beckwith-Wiedemann syndrome (BWS) is a growth disorder characterized by neonatal hypoglycemia, macrosomia, macroglossia, hemihyperplasia, omphalocele, embryonal tumors (e.g., Wilms tumor, hepatoblastoma, neuroblastoma, and rhabdomyosarcoma), visceromegaly, adrenocortical cytomegaly, renal abnormalities (e.g., medullary dysplas...