ISSN 1662-4009 (online)

ey0019.11-5 | New findings in adipose tissue biology | ESPEYB19

11.5. Insulin directly regulates the circadian clock in adipose tissue

N Tuvia , O Pivovarova-Ramich , V Murahovschi , S Luck , A Grudziecki , AC Ost , M Kruse , VJ Nikiforova , M Osterhoff , P Gottmann , O Gogebakan , C Sticht , N Gretz , M Schupp , A Schurmann , N Rudovich , AFH Pfeiffer , A Kramer

achim.kramer@charite.de Diabetes 2021;70:1985–1999http://www.ncbi.nlm.nih.gov/pubmed/34226282Brief Summary: This study analyzed gene expression in subcutaneous adipose tissue samples of adults with obesity collected before and after the hyperinsulinemic–euglycemic clamp or control saline infusion. They demonstrate that insulin regulat...

ey0016.6-2 | New Functions of (Old) Genes | ESPEYB16

6.2. Epigenetic repression of androgen receptor transcription in mutation-negative androgen insensitivity syndrome (AIS type II)

NC Hornig , P Rodens , H Dorr , NC Hubner , AE Kulle , HU Schweikert , M Welzel , S Bens , O Hiort , R Werner , S Gonzalves , AK Eckstein , M Cools , A Verrijn-Stuart , HG Stunnenberg , R Siebert , O Ammerpohl , PM Holterhus

J Clin Endocrinol Metab. 2018 Dec 1;103(12):4617–4627.doi: 10.1210/jc.2018-00052. PMID: 30124873This study shows for the first time that epigenetic changes in the androgen receptor gene (AR) proximal promoter region may underlie a clinical phenotype of Androgen Insensitivity Syndrome (AIS) in individuals in whom no DNA sequence mutation in AR or ...

ey0016.6-4 | New Functions of (Old) Genes | ESPEYB16

6.4. Essential role of BRCA2 in ovarian development and function

A Weinberg-Shukron , M Rachmiel , P Renbaum , S Gulsuner , T Walsh , O Lobel , A Dreifuss , A Ben-Moshe , S Zeligson , R Segel , T Shore , R Kalifa , M Goldberg , MC King , O Gerlitz , E Levy-Lahad , D Zangen

N Engl J Med. 2018 Sep 13;379(11):1042–1049.doi: 10.1056/NEJMoa1800024. PMID: 30207912This case report describes two sisters with 46,XX karyotype and hypergonadotropic hypogonadism – i.e. ovarian dysgenesis. They had normal general development and normal cognition. With estrogen replacement they developed normal sex characteristics and reached their target he...

ey0016.15-10 | (1) | ESPEYB16

15.10. Growth hormone regulates neuroendocrine responses to weight loss via AgRP neurons

Furigo Isadora C , Teixeira Pryscila DS , de Souza Gabriel O , Couto Gisele CL , Romero Guadalupe Garcia , Perello Mario , Frazao Renata , Elias Lucila L , Metzger Martin , List Edward O , Kopchick John J , Donato J

To read the full abstract: Nature Communications, 2019; 10 (1); 662This paper highlights the brain as a key target for growth hormone (GH) signaling affecting mostly energy conservation. To identify GH response neurons, C57BL/6 mice received intraperitoneal injection of saline or GH and their brains were processed to detect the phosphorylation of pSTAT5 as a marker of GH receptor a...

ey0015.5-6 | Towards evidence-based vitamin D supplementation | ESPEYB15

5.6 Effect of Higher vs Standard Dosage of Vitamin D3 Supplementation on Bone Strength and Infection in Healthy Infants: A Randomized Clinical Trial

J Rosendahl , S Valkama , E Holmlund-Suila , M Enlund-Cerullo , H Hauta-Alus , O Helve , T Hytinantti , E Levälahti , E Kajantie , H Viljakainen , O Mäkitie , S Andersson

To read the full abstract: JAMA Pediatr 2018;172(7):646-654Vitamin D deficiency in infants can lead to impaired bone mineralization and rickets. Since the 1920s, vitamin D has been used to prevent and treat rickets, but the optimal supplementation dose for bone health was unclear. Similarly, potential extra-skeletal benefits of vitamin D in childhood have been inadequately explored. Ac...

ey0018.5-5 | Advances in clinical practice | ESPEYB18

5.5. Growth curves for children with X-linked hypophosphatemia

Mao Meng , Carpenter Thomas O , Whyte Michael P , Skrinar Alison , Chen Chao-Yin , Martin Javier San , Rogol Alan D

J Clin Endocrinol Metab. 2020 Oct 1;105(10):3243–3249 Abstract: https://pubmed.ncbi.nlm.nih.gov/32721016/In brief: X-linked hypophosphatemia (XLH) is the most common hereditary form of rickets and osteomalacia. The study used retrospective, pre-burosumab growth data from four different studies and constructed growth charts that demonstrate that the growth rate of children with...

ey0018.10-9 | (1) | ESPEYB18

10.9. Serum 25-hydroxyvitamin D concentration in childhood and risk of islet autoimmunity and type 1 diabetes: the TRIGR nested case-control ancillary study

ME Miettinen , S Niinisto , I Erlund , D Cuthbertson , AM Nucci , J Honkanen , O Vaarala , H Hyoty , JP Krischer , M Knip

Diabetologia. 2020;63(4):780–787. doi: 10.1007/s00125-019-05077-4.This multicenter multinational study, in children with high genetic risk of T1D, identified an association between lower serum 25-hydroxyvitamin D (25OHD) concentrations and subsequent appearance of islet autoimmunity or T1D.The Trial to Reduce IDDM in the Genetically at Risk (TRIGR) ancillary ...

ey0019.8-5 | Important for Clinical Practice | ESPEYB19

8.5. Adrenal steroids reference ranges in infancy determined by LC-MS/MS

EO Enver , P Vatansever , O Guran , L Bilgin , P Boran , S Turan , G Haklar , A Bereket , T Guran

Pediatr Res. 2021; 92(1):265-274. doi: 10.1038/s41390-021-01739-5. PMID: 34556810https://pubmed.ncbi.nlm.nih.gov/34556810/Brief Summary: This study provides a detailed set of normative reference values for steroidogenesis during the first 6 months of life, which may facilitate rapid testing of infants for steroidogenic disorders.<p...

ey0017.1-7 | Hypopituitarism: Disease Modeling and New Discoveries | ESPEYB17

1.7. Single cell transcriptome analysis of developing arcuate nucleus neurons uncovers their key developmental regulators

C Huisman , H Cho , O Brock , SJ Lim , SM Youn , Y Park , S Kim , SK Lee , A Delogu , JW Lee

To read the full abstract: Nat Commun. 2019 Aug 16;10(1):3696. doi: 10.1038/s41467-019-11667-y. PMID: 31420539.The hypothalamic arcuate nucleus (ARC) controls crucial physiological processes, such as growth, reproduction and energy homeostasis. However, it is unknown how ARC neurons gain their unique cellular identities and what are their developmental relationships. Here, the authors i...

ey0017.5-6 | Advances in Clinical Practice | ESPEYB17

5.6. Genetic variation in GC and CYP2R1 affects 25-hydroxyvitamin D concentration and skeletal parameters: A genome-wide association study in 24-month-old Finnish children

A Kampe , M Enlund-Cerullo , S Valkama , E Holmlund-Suila , J Rosendahl , H Hauta-Alus , M Pekkinen , S Andersson , O Makitie

To read the full abstract: PLoS Genet. 2019 Dec 16;15(12):e1008530.In brief: This genome-wide association study in a cohort of healthy infants shows that, already during the first two years of life, genetic variation in the genes encoding Vitamin D binding protein and Vitamin D 25-hydroxylase correlate with serum 25(OH)D levels and responses to vitamin D supplementation.<p clas...