ISSN 1662-4009 (online)

ey0015.7-9 | Genetic architecture of hypogonadotropic hypogonadism and delayed puberty | ESPEYB15

7.9 Contributions of Function-Altering Variants in Genes Implicated in Pubertal Timing and Body Mass for Self-Limited Delayed Puberty

SR Howard , L Guasti , A Poliandri , A David , CP Cabrera , MR Barnes , K Wehkalampi , S O'Rahilly , CE Aiken , AP Coll , M Ma , D Rimmington , GSH Yeo , L Dunkel

To read the full abstract: J Clin Endocrinol Metab. 2018 Feb 1;103(2):649-659A minimum level of energy availability is required for the onset of puberty, whereas increased fat mass has been shown to be associated with precocious onset of puberty1,2. Recent genome-wide association studies have identified several loci for age at menarche also associated with obesity3-5. Whethe...

ey0021.14-4 | Basic Biology and Molecular Mechanisms | ESPEYB21

14.4. Fetal manipulation of maternal metabolism is a critical function of the imprinted Igf2 gene

J Lopez-Tello , HEJ Yong , I Sandovici , GKC Dowsett , ER Christoforou , E Salazar-Petres , R Boyland , T Napso , GSH Yeo , BYH Lam , M Constancia , AN. Sferruzzi-Perri

Brief Summary:This study in mice shows that insulin-like growth factor 2 (IGF2), encoded by an imprinted gene and expressed by placental endocrine cells, is essential for the adaptive changes in maternal glucose and lipid metabolism during pregnancy to promote fetal growth. Failure of this adaptive program during pregnancy also resulted in metabolic dysfunction of offspring mice later in their life.IGF2 has been longer known to be involved in the regulat...

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...

ey0021.11-10 | Genetic Risk Score and New Genes | ESPEYB21

11.10. Protein-truncating variants in BSN are associated with severe adult-onset obesity, type 2 diabetes and fatty liver disease

Y Zhao , M Chukanova , KA Kentistou , Z Fairhurst-Hunter , AM Siegert , RY Jia , GKC Dowsett , EJ Gardner , K Lawler , FR Day , LR Kaisinger , YCL Tung , Lam B Yee Hong , HJC Chen , Q Wang , J Berumen-Campos , P Kuri-Morales , R Tapia-Conyer , J Alegre-Diaz , I Barroso , J Emberson , JM Torres , R Collins , D Saleheen , KR Smith , DS Paul , F Merkle , IS Farooqi , NJ Wareham , S Petrovski , S O'Rahilly , KK Ong , GSH Yeo , JRB Perry

Brief Summary: This exome-wide association study conducted in the UK Biobank cohort (n=454 787) and in two non-European cohorts, the Mexican MCPS cohort (n=141 046) and the Pakistani PGR cohort (n=37 800), identified a association between rare protein-truncating variants (PTVs) in the APBA1 and the BSN genes and adult-onset obesity, suggesting two new genes as possible causes for monogenic obesity. Rare PTVs in BSN were also associated with Type 2 di...