ISSN 1662-4009 (online)

ey0019.12-11 | Hyperlipidemia | ESPEYB19

12.11. Identification and evaluation of a lipid-lowering small compound in preclinical models and in a Phase I trial

H. Wang J, Zhao J, Yan C, Xi C, Wu C, Zhao J, Li F, Ding Y, Zhang R, Qi S, Li X, Liu C, Hou W, Chen H, Wang Y, Wu D, Chen K, Jiang H, Huang H, Liu

Cell Metabolism 2022;34(5):667-80.e6. doi: 10.1016/j.cmet.2022.03.006Brief Summary: In preclinical models and a phase 1 trial, a powerful new lipid small molecule was shown to act through a mechanism distinct from those of known hypolipidemic agents. Targeting HNF-1α may be a new therapeutic strategy.Comment: Familial hypercholesterolemia (FH) is the most common...

ey0017.1-4 | Update on the Genetics of Hypopituitarism | ESPEYB17

1.4. Loss-of-function variants in TBC1D32 underlie syndromic hypopituitarism

J Hietamaki , LC Gregory , S Ayoub , AP Iivonen , K Vaaralahti , X Liu , N Brandstack , AJ Buckton , T Laine , J Kansakoski , M Hero , PJ Miettinen , M Varjosalo , E Wakeling , MT Dattani , T Raivio

To read the full abstract: J Clin Endocrinol Metab. 2020 Feb 15. pii: dgaa078. doi: 10.1210/clinem/dgaa078. PMID: 32060556.Just another gene implicated in hypopituitarism? Yes, but it is a newish cilopathy gene in the hedgehog pathway. Hedgehog family of polypeptides (Sonic (Shh), Indian (Ihh) and desert (Dhh) hedgehog) are signaling molecules that are needed for many cellular events and pl...

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...

ey0016.11-6 | Tracking, Programming, and Epigenetics | ESPEYB16

11.6. Adipose tissue mitochondrial dysfunction in human obesity is linked to a specific DNA methylation signature in adipose-derived stem cells

M Ejarque , V Ceperuelo-Mallafre , C Serena , E Maymo-Masip , X Duran , A Diaz-Ramos , M Millan-Scheiding , Y Nunez-Alvarez , C Nunez-Roa , P Gama , PM Garcia-Roves , MA Peinado , JM Gimble , A Zorzano , J Vendrell , S Fernandez-Veledo

To read the full abstract: Int J Obes (Lond). 2019;43(6):1256–1268This epigenome-wide association study in stromal/stem cells (ASCs), derived from subcutaneous adipose tissue samples of lean and obese subjects, revealed a specific DNA methylation signature in adipocyte precursors associated with obesity, which has a significant impact on the metabolic phenotype and the mitochondrial...

ey0016.14-17 | (1) | ESPEYB16

14.17. Whole-genome sequencing of Atacama skeleton shows novel mutations linked with dysplasia

S Bhattacharya , J Li , A Sockell , MJ Kan , FA Bava , SC Chen , MC Avila-Arcos , X Ji , E Smith , NB Asadi , RS Lachman , HYK Lam , CD Bustamante , AJ Butte , GP Nolan

To read the full abstract: Genome Res 2018;28:423–431The discovery of a mummified humanoid female skeleton on a shelf in a building in La Noria, Chile in 2003 created enormous scientific and popular interest. Its highly unusual appearance included a length of only 6 inches despite a bone age of 6–7 years old, marked turricephaly (a cone-shaped top of the skull), and reduced number...

ey0015.2-11 | FOXP3 mutations lead to early onset diabetes mellitus with no other clinical manifestations | ESPEYB15

FOXP3 mutations can lead to early onset diabetes mellitus with no other clinical manifestations

JL Hwang , SY Park , H Ye , M Sanyoura , AN Pastore , D Carmody , D Del Gaudio , JF Wilson , CL Hanis , X Liu , G Atzmon , B Glaser , LH Philipson , SAW Greeley , Consortium T2D-Genes

To read the full abstract: Pediatr Diabetes. 2018 May;19(3):388-392Mutations in FOXP3 are associated with a severe, early-onset, autoimmunity syndrome known in males known as IPEX (immune dysregulation, polyendocrinopathy, enteropathy, X-linked; OMIM [Online Mendelian Inheritance in Man] 304930). The gene maps to chromosome Xp11.23 and encodes a 431–amino acid protein, also named &#8216...

ey0015.8-2 | Mechanism of the Year | ESPEYB15

8.2 A gain-of-function mutation in the CLCN2 chloride channel gene causes primary aldosteronism

FL Fernandes-Rosa , G Daniil , IJ Orozco , C Göppner , R El Zein , V Jain , S Boulkroun , X Jeunemaitre , L Amar , H Lefebvre , T Schwarzmayr , TM Strom , TJ Jentsch , MC Zennaro

To read the full abstract: Nat Genet. 2018; 50(3): 355-361[Comments on 8.1 and 8.2] Primary aldosteronism (PA) is the most common form of secondary hypertension, affecting 3–5% of the general hypertensive population and 8–10% of patients referred to specialist hypertension services, although it is very rare in children (...

ey0015.8-8 | Important for Clinical Practice | ESPEYB15

8.8 Noninvasive prenatal diagnosis of 21-hydroxylase deficiency using target capture sequencing of maternal plasma DNA

D Ma , Y Yuan , C Luo , Y Wang , T Jiang , F Guo , J Zhang , C Chen , Y Sun , J Cheng , P Hu , J Wang , H Yang , X Yi , W Wang , Asan , Z Xu

To read the full abstract: Sci Rep. 2017; 7(1): 7427Prenatal dexamethasone treatment has been suggested over three decades ago to prevent virilization of a female fetus affected with 21-hydroxylase deficiency due to genetic mutations in the CYP21A2 gene. However, current treatment guidelines for CAH regard this treatment still as experimental, mainly because follow-up studies of treated fetu...

ey0020.3-1 | Novel Treatments for Rare Skeletal Disorders | ESPEYB20

3.1. Safety and efficacy of denosumab for fibrous dysplasia of bone

LF de Castro , Z Michel , K Pan , J Taylor , V Szymczuk , S Paravastu , B Saboury , GZ Papadakis , X Li , K Milligan , B Boyce , SM Paul , MT Collins , AM Boyce

In Brief: This phase 2 study investigated the effect of the RANKL inhibitor denosumab on fibrous dysplasia lesion activity, as well as the rebound in bone turnover after treatment discontinuation.Commentary: Denosumab is a humanized monoclonal antibody that inhibits RANKL with potent but transient antiosteoclastic effects, and discontinuation of denosumab treatment is associated with a rebound in bone turnover. In this study, eight women received high do...

ey0020.3-14 | Advances in Growth, Bone Biology, and Mineral Metabolism | ESPEYB20

3.14. SIRT2 regulates extracellular vesicle-mediated liver-bone communication

L Lin , Z Guo , E He , X Long , D Wang , Y Zhang , W Guo , Q Wei , W He , W Wu , J Li , L Wo , D Hong , J Zheng , M He , Q Zhao

In Brief: These authors studied liver-specific SIRT2 knockout mice to examine how loss of hepatocyte SIRT2 (Sirtuin 2) prevents bone loss in aged mice. Hepatocyte SIRT2 deficiency led to upregulation of Leucine rich α2 glycoprotein (LRG1) in hepatocyte-derived small extracellular vesicles (sEVs) which inhibited osteoclastogenesis in bone marrow.Commentary: Liver-bone communication has been implicated in bone homeostasis. P...