ISSN 1662-4009 (online)

ey0015.10-3 | Aetiology and heterogeneity of type 1 diabetes | ESPEYB15

10.3 Frequency and phenotype of T1DM in the first six decades of life: a cross-sectional, genetically stratified survival analysis from UK Biobank

NJ Thomas , SE Jones , MN Weedon , BM Shields , RA Oram , AT Hattersley

To read the full abstract: Lancet Diabetes Endocrinol. 2018;6:122-129T1DM formerly called juvenile or insulin dependent diabetes has so far been considered to be a disease of children adolescents and young adults according to traditional teaching. LADA or late autoimmune diabetes of the adult is known since several decades, however the older the patient with new onset diabetes the more li...

ey0017.3-7 | Congenital hypothyroidism | ESPEYB17

3.7. DUOX2/DUOXA2 mutations frequently cause congenital hypothyroidism that evades detection on newborn screening in the UK

C Peters , AK Nicholas , E Schoenmakers , G Lyons , S Langham , EG Serra , NJ Sebire , M Muzza , L Fugazzola , N Schoenmakers

To read the full abstract: Thyroid. 2019;29:790–801.Patients with mutations in the dual oxidase 2 (DUOX2 ) gene – encoding a NADPH oxidase that generates hydrogen peroxidase for iodide organification – have been repeatedly reported as not being detected by neonatal screening because it causes only mild hyperthyrotropinemia at birth. Here, Peters et al. determined the incidence of DUOX2 and dual oxidase 2...

ey0016.5-9 | Clinical Advances in Treatment | ESPEYB16

5.9. Asfotase alfa for infants and young children with hypophosphatasia: 7 year outcomes of a single-arm, open-label, phase 2 extension trial

MP Whyte , JH Simmons , S Moseley , KP Fujita , N Bishop , NJ Salman , J Taylor , D Phillips , M McGinn , WH McAlister

Abstract: Lancet Diabetes Endocrinol. 2019 Feb;7(2):93–105.In brief: The study reports outcomes of a single-arm 7-year phase 2 extension trial of Asfotase alfa for infants and children with life-threatening hypophosphatasia who received a median of 6·6 years of therapy. The early improvements previously reported were sustained for up to 7 years of treatment.<p class...

ey0017.7-13 | Basic Science | ESPEYB17

7.13. Genomic analysis of male puberty timing highlights shared genetic basis with hair colour and lifespan

B Hollis , FR Day , AS Busch , DJ Thompson , ALG Soares , PRHJ Timmers , A Kwong , DF Easton , PK Joshi , NJ; PRACTICAL Consortium; 23andMe Research Team Timpson , KK Ong , JRB Perry

To read the full abstract: Nature communications vol. 11,1 1536. 24 Mar. 2020. doi: https://www.nature.com/articles/s41467-020-14451-5This multi-trait genome-wide association study (GWAS) for male puberty timing identifies 76 independent signals for puberty timing and highlights relationships with natural hair colour and lifespan. The timing of puber...

ey0015.5-3 | New genes and gene mutations | ESPEYB15

5.3 CYP3A4 mutation causes vitamin D-dependent rickets type 3

JD Roizen , D Li , L O'Lear , MK Javaid , NJ Shaw , PR Ebeling , HH Nguyen , CP Rodda , KE Thummel , TD Thacher , H Hakonarson , MA Levine

To read the full abstract: J Clin Invest 2018;128:1913-1918Two rare genetic forms of vitamin D–dependent rickets exist: VDDR-1 caused by mutations in the genes encoding either the renal 1-α hydroxylase (CYP27B1: VDDR-1A) or the hepatic 25-hydroxylase (CYP2R1: VDDR-1B) and VDDR-2 caused by mutations in the vitamin D receptor signalling due to mutations in the gene encoding the ...

ey0015.8-3 | New Mechanisms | ESPEYB15

8.3 Ultradian rhythmicity of plasma cortisol is necessary for normal emotional and cognitive responses in man

K Kalafatakis , GM Russell , CJ Harmer , MR Munafo , N Marchant , A Wilson , JC Brooks , C Durant , J Thakrar , P Murphy , NJ Thai , SL Lightman

To read the full abstract: Proc Natl Acad Sci U S A. 2018; 115(17): E4091-E4100The hypothalamic-pituitary-adrenal axis is a critical neurohormonal network that regulates homeostasis and coordinates the stress response. Glucocorticoids (GCs) are critical for life and are key regulators of cognitive, metabolic and immunologic homeostasis (4). Clinical studies in healthy human subjects, usi...

ey0018.2-8 | Neonatal diabetes mellitus | ESPEYB18

2.8. Long-term Follow-up of Glycemic and Neurological Outcomes in an International Series of Patients With Sulfonylurea-Treated ABCC8 Permanent Neonatal Diabetes.

P Bowman , F Mathews , F Barbetti , MH Shepherd , J Sanchez , B Piccini , J Beltrand , LR Letourneau-Freiberg , M Polak , SAW Greeley , E Rawlins , T Babiker , NJ Thomas , E De Franco , S Ellard , SE Flanagan , AT Hattersley , Neonatal Diabetes International Collaborative Group

Diabetes Care. 2021 Jan;44(1):35–42. doi: 10.2337/dc20-1520. PMID: 33184150.The key findings from this cohort of patients with ABCC8 neonatal diabetes mellitus (NDM) are: A) good glycaemic control is maintained over the long-term without any serious adverse events (including severe hypoglycaemia) despite high doses of sulphonylurea, B) some patients show improvements in neurologica...

ey0018.11-2 | New hope: Increased diagnostic yield for disease causing MC4R variants and pharmacological treatment options | ESPEYB18

11.2. Structure reveals the activation mechanism of the MC4 receptor to initiate satiation signalling

H Israeli , O Degtjarik , F Fierro , V Chunilal , AK Gill , NJ Roth , J Botta , V Prabahar , Y Peleg , LF Chan , D Ben-Zvi , PJ McCormick , Y Niv , M Shalev-Benami

Science 2021;372(6544): 808–814 doi: https://doi.org/10.1126/science.abf7958Isreali et al. describe the molecular structure of the melanocortin 4 receptor (MC4R) complexed with its effector G protein (Gs alpha) and setmelanotide, a pharmacological agonist of MC4R.MC4R is a known key element in body weight regulation, connecting response to leptin with inhibition o...

ey0018.11-4 | New hope: Increased diagnostic yield for disease causing MC4R variants and pharmacological treatment options | ESPEYB18

11.4. Loss-of-function mutations in the melanocortin 4 receptor in a UK birth cohort

KH Wade , BYH Lam , A Melvin , W Pan , LJ Corbin , DA Hughes , K Rainbow , JH Chen , K Duckett , X Liu , J Mokrosiński , A Morseburg , S Neaves , A Williamson , C Zhang , IS Farooqi , GSH Yeo , NJ Timpson , S O'Rahilly

Nat Med, 2021 Jun;27(6):1088–1096. 10.1038/s41591-021-01349-y. https://pubmed.ncbi.nlm.nih.gov/34045736/This paper reports the high prevalence of MC4R loss-of-function (LoF) variants in a normal population and their large impact on longitudinally assessed anthropometric traits from birth to young adult life.Th...

ey0017.11-3 | New Genetic Findings | ESPEYB17

11.3. Human gain-of-function MC4R variants show signaling bias and protect against obesity

LA Lotta , J Mokrosinski , E Mendes de Oliveira , C Li , SJ Sharp , J Luan , B Brouwers , V Ayinampudi , N Bowker , N Kerrison , V Kaimakis , D Hoult , ID Stewart , E Wheeler , FR Day , JRB Perry , C Langenberg , NJ Wareham , IS Farooqi

To read the full abstract: Cell 2019;177 (3):59–-607.e9. PMID 31002796.A recent GWAS showed that the heritability of thinness was comparable to that of obesity (1). Some loci showed effects across the entire BMI distribution. This is also true for variants in MC4R. The present study analyzed data on ˜0.5 million people from UK Biobank, with a focus on 61 nonsynonymous var...