ISSN 1662-4009 (online)

ey0015.2-13 | Primary cells isolated from the umbilical cord of offspring born to mothers with GDM maintain metabolic and molecular imprints of maternal hyperglycemia | ESPEYB15

Primary cells isolated from the umbilical cord of offspring born to mothers with GDM maintain metabolic and molecular imprints of maternal hyperglycemia

AI Amrithraj , A Kodali , L Nguyen , AKK Teo , CW Chang , N Karnani , KL Ng , PD Gluckman , YS Chong , W Stünkel

To read the full abstract: Endocrinology. 2017 Jul 1;158(7):2102-2112Gestational diabetes mellitus (GDM) produces fetal hyperglycemia with increased lifelong risks for the exposed offspring to cardiovascular and other diseases. In-utero exposure to GDM alters metabolic programming in newborns and their placenta, cord tissues, and cord blood. Human umbilical cord mesenchymal stromal cells (hUC-MSCs...

ey0020.12-12 | Food for Thought | ESPEYB20

12.12. Associations between infant screen use, electroencephalography markers, and cognitive outcomes

EC Law , MX Han , Z Lai , S Lim , ZY Ong , V Ng , LJ Gabard-Durnam , CL Wilkinson , AR Levin , A Rifkin-Graboi , LM Daniel , PD Gluckman , YS Chong , MJ Meaney , CA Nelson

Brief summary: In the prospective population-based Growing Up in Singapore Toward Healthy Outcomes (GUSTO) study (n=437 children, 51.9% boys), the effect of parent-reported screen time in infancy was tested on EEG characteristics and correlated to cognitive outcome. Mean daily screen time at 12 months of age was 2 hours. Infant screen time was associated with altered cortical EEG activity at 18 months and was suggested to explain observed alterations in attention and ...

ey0017.3-10 | New genes | ESPEYB17

3.10. DGCR8 microprocessor defect characterizes familial multinodular goiter with schwannomatosis

B Rivera , J Nadaf , S Fahiminiya , M Apellaniz-Ruiz , A Saskin , AS Chong , S Sharma , R Wagener , T Revil , V Condello , Z Harra , N Hamel , N Sabbaghian , K Muchantef , C Thomas , L de Kock , MN Hebert-Blouin , AV Bassenden , H Rabenstein , O Mete , R Paschke , MP Pusztaszeri , W Paulus , A Berghuis , J Ragoussis , YE Nikiforov , R Siebert , S Albrecht , R Turcotte , M Hasselblatt , MR Fabian , WD Foulkes

To read the full abstract: J Clin Invest. 2020;130:1479–1490.This detailed genetic and molecular analysis of a three-generation family reveals a new form of autosomal dominant tumor susceptibility syndrome entitled familial multinodular goiter (MNG) with schwannomatosis. Biallelic alterations of the DGCR8 gene were found in all affected patients: First, all patients harbored the same heterozygous germline mutation p.E518K. Secondly...

ey0021.3-9 | Congenital Hypothyroidism | ESPEYB21

3.9. STR mutations on chromosome 15q cause thyrotropin resistance by activating a primate-specific enhancer of MIR7-2/MIR1179

Grasberger Helmut , Dumitrescu Alexandra M , Liao Xiao-Hui , Swanson Elliott G , Weiss Roy E , Srichomkwun Panudda , Pappa Theodora , Chen Junfeng , Yoshimura Takashi , Hoffmann Phillip , Franca Monica Malheiros , Tagett Rebecca , Onigata Kazumichi , Costagliola Sabine , Ranchalis Jane , Vollger Mitchell R , Stergachis Andrew B , Chong Jessica X , Bamshad Michael J , Smits Guillaume , Vassart Gilbert , Refetoff Samuel

Brief Summary: This study investigated congenital hypothyroidism (CH) due to dominantly inherited resistance to TSH (RTSH) in 12 unrelated families. It reveals that mutations in a non-coding (TTTG) short tandem repeat (STR) on chromosome 15q cause this condition by activating a thyroid-specific enhancer cluster. Functional studies showed that activation of this enhancer cluster leads to upregulation of the bicistronic MIR7-2/MIR1179 locus, resulting in overexpression of its mi...