ISSN 1662-4009 (online)

ey0020.5-12 | Basic Research | ESPEYB20

5.12. Defective jagged-1 signaling affects GnRH development and contributes to congenital hypogonadotropic hypogonadism

L Cotellessa , F Marelli , P Duminuco , M Adamo , GE Papadakis , L Bartoloni , N Sato , M Lang-Muritano , A Troendle , WS Dhillo , A Morelli , G Guarnieri , N Pitteloud , L Persani , M Bonomi , P Giacobini , V Vezzoli

Brief summary: Using a combination of expression studies in human embryos as well as functional studies in zebrafish and genetic sequencing of patient with congenital hypogonadotropic hypogonadism, this study identified a novel role for Jag1/Notch signaling in the development of GnRH neurons.GnRH neurons have a unique characteristic as they start life in the olfactory placode and then migrate into the hypothalamus during embryonic development, thanks to ...

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...

ey0018.5-13 | Advances in skeletal biology | ESPEYB18

5.13. SOX9 keeps growth plates and articular cartilage healthy by inhibiting chondrocyte dedifferentiation/osteoblastic redifferentiation

A Haseeb , KC Ranjan , M Angelozzij , C de Charleroy , D Rux , RJ Tower , L Yao , R Pellegrino da Silva , M Pacifici , L Qin , V Lefebvre

Proc Natl Acad Sci USA 2021 Feb 23;118(8):e2019152118. Abstract: https://pubmed.ncbi.nlm.nih.gov/33597301/In brief: Sox9 is the key transcription factor and master regulator of chondrocyte differentiation during skeletal development. This paper demonstrates that SOX9 also has a key role during postnatal life to maintain open growth plates and healthy articular cartilage by preventi...

ey0018.6-9 | Patient Related Outcomes | ESPEYB18

6.9. Early Genital Surgery in Disorders/Differences of Sex Development: Patients' Perspectives

E Bennecke , S Bernstein , P Lee , TC van de Grift , A Nordenskjold , M Rapp , M Simmonds , JC Streuli , U Thyen , C Wiesemann

Arch Sex Behav. 2021 Apr;50(3):913–923. doi: 10.1007/s10508-021-01953-6. PMID: 33712989This paper describes a patient cohort study of 459 individuals with various DSD diagnoses, as part of the dsd-LIFE study. Patients were included at 14 different sites in 6 European countries.Genital surgery has been increasingly questioned in the past decade. Both the timin...

ey0018.10-7 | (1) | ESPEYB18

10.7. Circulating metabolites in progression to islet autoimmunity and type 1 diabetes

S Lamichhane , E Kemppainen , K Trošt , H Siljander , H Hyoty , J Ilonen , J Toppari , R Veijola , T Hyotylainen , M Knip , M Orešič

Diabetologia. 2019;62(12):2287–2297. doi: 10.1007/s00125-019-04980-0This study identified different circulatory metabolite profiles in children who subsequently progress to T1D compared to children who progress to islet autoimmunity but not T1D, and antibody-negative control children.In addition to altered T cell immunity and autoantibody appearance, metaboli...

ey0018.11-15 | New insight into preconceptional and prenatal programming | ESPEYB18

11.15. Sex-specific programming effects of parental obesity in pre-implantation embryonic development

K Hedegger , J Philippou-Massier , S Krebs , H Blum , S Kunzelmann , K Forstemann , M Gimpfl , AA Roscher , R Ensenauer , E Wolf , M Dahlhoff

Int J Obes (Lond). 2020 May;44(5):1185–1190. https://pubmed.ncbi.nlm.nih.gov/31776435/These authors investigated the effect of maternal and paternal obesity on gene expression level in the mouse blastocyst. Firstly, they show that female and male offspring were differentially sensitive to an obesogenic maternal environment in the early phase of preimplantation. Male blastocysts from o...

ey0019.1-13 | Clinical Papers | ESPEYB19

1.13. Management of children and young people with idiopathic pituitary stalk thickening, central diabetes insipidus, or both: a national clinical practice consensus guideline.

M Cerbone , J Visser , C Bulwer , A Ederies , K Vallabhaneni , S Ball , I Kamaly-Asl , A Grossman , H Gleeson , M Korbonits , V Nanduri , V Tziaferi , T Jacques , HA Spoudeas

Lancet Child Adolesc Health. 2021 Sep;5(9):662-676. doi: 10.1016/S2352-4642(21)00088-2. Epub 2021 Jun 30; PMID: 34214482.Brief Summary: This comprehensive guideline defines the role of cerebrospinal fluid tumor markers, whole-body imaging, and the indications, timing and risks of stalk biopsy, as well as criteria for discharge in children and young people with idiopathic pituitary stalk...

ey0019.5-4 | Advances in clinical practice | ESPEYB19

5.4. PTH infusion for seizures in autosomal dominant hypocalcemia type 1

A Sastre , K Valentino , FM Hannan , KE Lines , AK Gluck , M Stevenson , M Ryalls , RJ Gorrigan , D Pullen , J Buck , S Sankaranarayanan , J Allgrove , RV Thakker , EF Gevers

N Engl J Med. 2021 Jul 8;385(2):189-191.Abstract: https://pubmed-ncbi-nlm-nih-gov.proxy.kib.ki.se/34233101/In brief: This study retrospectively analysed a cohort of patients with autosomal dominant hypocalcemia type 1 and recurrent hypocalcemic seizures treated with continuous subcutaneous PTH (1-34) infusions using insulin pumps. Compared to conventional therapy, PTH (1-34)...

ey0019.7-13 | Basic Science | ESPEYB19

7.13. Multi- and transgenerational outcomes of an exposure to a mixture of endocrine-disrupting chemicals (EDCs) on puberty and maternal behavior in the female rat

D Lopez-Rodriguez , CF Aylwin , V Delli , E Sevrin , M Campanile , M Martin , D Franssen , A Gerard , S Blacher , E Tirelli , A Noel , A Lomniczi , AS Parent

Environ Health Perspect.2021 Aug;129(8):87003. doi: 10.1289/EHP8795. Epub 2021 Aug 12. PMID: 34383603. https://ehp.niehs.nih.gov/doi/10.1289/EHP8795?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmedBrief Summary: Using a rode...

ey0019.12-2 | New data on the epidemiology of T2DM in children | ESPEYB19

12.2. Type 2 diabetes in prepubertal children

MJ Astudillo M, Tosur M, Castillo B, Rafaey A, Siller AF, Nieto J, Sisley S, McKay S, Nella AA, Balasubramanyam A, Bacha F, Redondo

Pediatric diabetes 2021;22(7):946-50. doi: 10.1111/pedi.13254Brief Summary: This retrospective study describes the characteristics of 35 prepubertal children diagnosed with T2DM during 2016–2019 in Houston, Texas. These children had severe obesity, insulin resistance and dyslipidemia.Comment: We were all appalled when the first incidence of T2DM in a 5-year-old girl was...