ISSN 1662-4009 (online)

ey0017.2-10 | Neonatal Diabetes Mellitus | ESPEYB17

2.10. The clinical and genetic characteristics of permanent neonatal diabetes (PNDM) in the State of Qatar

S Al-Khawaga , I Mohammed , S Saraswathi , B Haris , R Hasnah , A Saeed , H Almabrazi , N Syed , P Jithesh , A El Awwa , A Khalifa , F AlKhalaf , G Petrovski , EM Abdelalim , K Hussain

To read the full abstract: Mol Genet Genomic Med., 2019 Oct;7(10):e00753. doi: 10.1002/mgg3.753. Epub 2019 Aug 23. PMID: 31441606The unique population in the State of Qatar comprises over 2.6 million people who derived primarily from the Middle East and North Africa (MENA) and South Asia regions. Around 15% are indigenous Qataris of Arabian Peninsula ancestries, who have also immigrated to the St...

ey0017.4-13 | New paradigms | ESPEYB17

4.13. IGF1-mediated human embryonic stem cell self-renewal recapitulates the embryonic niche

SE Wamaitha , KJ Grybel , G Alanis-Lobato , C Gerri , S Ogushi , A AMcCarthy , SK Mahadevaiah , L Healy , RA Lea , M Molina-Arcas , LG Devito , K Elder , P Snell , L Christie , J Downward , JMA Turner , KK Niakan

To read the full abstract: Nat Commun. 2020 Feb 7;11(1):764.The signaling pathways involved in the regulation of early human development are largely unknown and the IGF system has been proposed to play a major role (1). The knowledge of mechanisms and actors involved in early life development is crucial to develop successful strategies for maintaining pluripotent human embryonic stem cells (hESCs).This sophisticated study ...

ey0017.6-3 | Differences/Disorders of Sex Development: A DSDnet Pape | ESPEYB17

6.3. Peptide hormone analysis in diagnosis and treatment of differences of sex development: Joint position paper of EU COST action ‘DSDnet’ and european reference network on rare endocrine conditions

TH Johannsen , AM Andersson , SF Ahmed , YB de Rijke , RF Greaves , MF Hartmann , O Hiort , PM Holterhus , NP Krone , A Kulle , ML Ljubicic , G Mastorakos , J McNeilly , AM Pereira , A Saba , SA Wudy , KM Main , A Juul

To read the full abstract: Eur J Endocrinol. 2020, Jun; 182: P1–p15; doi: https://eje.bioscientifica.com/downloadpdf/journals/eje/182/6/EJE-19-0831.pdfDiagnosis and monitoring of therapies for DSD patients require clinical, biochemical and genetic assessments. Biochemical analyses comprise the measurements of peptide and steroid hormones. This positi...

ey0017.7-9 | Basic Science | ESPEYB17

7.9. The dynamic transcriptional cell atlas of testis development during human puberty

J Guo , X Nie , M Giebler , H Mlcochova , Y Wang , EJ Grow , Connect Donor , R Kim , M Tharmalingam , G Matilionyte , C Lindskog , DT Carrell , RT Mitchell , A Goriely , JM Hotaling , BR Cairns

To read the full abstract: Cell Stem Cell vol. 26,2 (2020): 262–276.e4. doi: https://www.sciencedirect.com/science/article/pii/S1934590919305235?via%3DihubThis paper describes a transcriptional analysis of human spermatogonial stem cells during puberty and the involvement of testosterone in Sertoli cell maturation.The...

ey0017.11-13 | Pharmacologic Treatment | ESPEYB17

11.13. Metformin-induced increases in GDF15 are important for suppressing appetite and promoting weight loss

EA Day , RJ Ford , BK Smith , P Mohammadi-Shemirani , MR Morrow , RM Gutgesell , R Lu , AR Raphenya , M Kabiri , AG McArthur , N McInnes , S Hess , G Pare , HC Gerstein , GR Steinberg

To read the full abstract: Nat Metab 2019;1:1202–1208.Metformin has become a mainstay in the treatment of T2DM in over six decades of clinical use and is today one of the world’s most commonly prescribed drugs. Anti-diabetic properties of metformin rely on an inhibition of hepatic glucose output through AMPK-dependent, but also AMPK-independent effects (reviewed in (1)). Neverthel...

ey0017.15-1 | (1) | ESPEYB17

15.1. Preconception diabetes mellitus and adverse pregnancy outcomes in over 6.4 million women: A population-based cohort study in China

Y Wei , Q Xu , H Yang , Y Yang , L Wang , H Chen , C Anderson , X Liu , G Song , Q Li , Q Wang , H Shen , Y Zhang , D Yan , Z Peng , Y He , Y Wang , Y Zhang , H Zhang , X Ma

To read the full abstract: PLoS Med. 2019 Oct 1;16(10):e1002926. doi: 10.1371/journal.pmed.1002926.The authors analysed a huge dataset from the Chinese national programme of preconception health checks, which include measurements of fasting plasma glucose. Overall, 13.15% (n =847,737) had impaired fasting glucose and 1.18% (n =76,297 women) had diabetes, of whom only...

ey0016.3-10 | New Genes | ESPEYB16

3.10. Mutations in IRS4 are associated with central hypothyroidism

CA Heinen , EM de Vries , M Alders , H Bikker , N Zwaveling-Soonawala , Akker ELT van den , B Bakker , G Hoorweg-Nijman , F Roelfsema , RC Hennekam , A Boelen , Trotsenburg ASP van , E Fliers

To read the full abstract: J Med Genet. 2018;55:693–700.This genetic study identified, by whole exome sequencing, mutations in the insulin receptor substrate 4 gene (IRS4) in 5 families with isolated central congenital hypothyroidism. Thus, the authors add a fifth genetic cause of isolated congenital hypothyroidism to the previously known genes: TSHB, TRHR, IGSF1, ...

ey0016.5-18 | Basic Science - Bone | ESPEYB16

5.18. Developmental origin, functional maintenance and genetic rescue of osteoclasts

CE Jacome-Galarza , GI Percin , JT Muller , E Mass , T Lazarov , J Eitler , M Rauner , VK Yadav , L Crozet , M Bohm , PL Loyher , G Karsenty , C Waskow , F Geissmann

Abstract: Nature. 2019 Apr;568(7753):541–545.In brief: Murine knockout studies unravel the developmental origin of osteoclasts in embryonic, erythro-myeloid progenitors, acquiring exceptional longevity by constant fusion with monocytes and rejuvenation of cellular nucleii throughout postnatal life.Comment: Osteoclast function is essentia...

ey0016.6-3 | New Functions of (Old) Genes | ESPEYB16

6.3. Human sex reversal is caused by duplication or deletion of core enhancers upstream of SOX9

B Croft , T Ohnesorg , J Hewitt , J Bowles , A Quinn , J Tan , V Corbin , E Pelosi , J van den Bergen , R Sreenivasan , I Knarston , G Robevska , DC Vu , J Hutson , V Harley , K Ayers , P Koopman , A Sinclair

Nat Commun. 2018 Dec 14;9(1):5319.doi: 10.1038/s41467-018-07784-9. PubMed [citation] PMID: 30552336Initial steps in the sex determination of the (human) testis depend on SRY regulating SOX9, but the exact mechanism that controls SOX9 expression remains unknown. These authors discovered four overlapping copy number variations (CNVs) upstr...

ey0016.8-12 | New Genes | ESPEYB16

8.12. Targeted next-generation sequencing detects rare genetic events in pheochromocytoma and paraganglioma

L Ben Aim , P Pigny , LJ Castro-Vega , A Buffet , L Amar , J Bertherat , D Drui , I Guilhem , E Baudin , C Lussey-Lepoutre , C Corsini , G Chabrier , C Briet , L Faivre , C Cardot-Bauters , J Favier , AP Gimenez-Roqueplo , N Burnichon

To read the full abstract: J Med Genet. 2019 Mar 15. pii: jmedgenet-2018-105714. [Epub ahead of print].Paragangliomas and pheochromocytomas (PPGL) are rare neuroendocrine tumours that can arise either from the adrenal medulla (pheochromocytomas, PCC) or from extra-adrenal paraganglia (paragangliomas, PGL). PPGLs are considered to be the most heritable of human tumours with at least...