ISSN 1662-4009 (online)

ey0021.4-8 | New Paradigms | ESPEYB21

4.8. Verapamil prevents decline of IGF-I in subjects with type 1 diabetes and promotes [beta]-cell IGF-I signaling

G Xu , J Chen , B Lu , P Sethupathy , WJ Qian , A Shalev

Brief Summary: This study examined the potential benefits of Verapamil, a calcium channel blocker traditionally used to treat hypertension, in Type 1 Diabetes (T1D). It shows that Verapamil can prevent the decline of Insulin-like Growth Factor I (IGF-I) levels, which are crucial for β-cell survival and insulin production. Moreover, Verapamil reduced the expression of IGF-binding protein 3 (IGFBP3), enhancing IGF-I signaling and protecting β-cells from apoptosis. Henc...

ey0016.11-3 | New Insights into Body Weight Regulation | ESPEYB16

11.3. Steroid receptor coactivator-1 modulates the function of Pomc neurons and energy homeostasis

Y Yang , AA van der Klaauw , L Zhu , TM Cacciottolo , Y He , LKJ Stadler , C Wang , P Xu , K Saito , A Jr. Hinton , X Yan , JM Keogh , E Henning , MC Banton , AE Hendricks , EG Bochukova , V Mistry , KL Lawler , L Liao , J Xu , S O'Rahilly , Q Tong , UK10K Consortium , I Barroso , BW O'Malley , IS Farooqi , Y Xu

To read the full abstract: Nat Comm 2019; 10(1): 1718Steroid receptor coactivator (SRC)-1 mediates nuclear hormone receptors and transcription factor-dependent transcription (1), and interacts with STAT3 (2) an important mediator of leptin-induced POMC expression and hence satiety (3). Src-1 knockout mice are obese (4), however, the underlying mechanism is unclear. In a...

ey0020.8-10 | New Paradigms | ESPEYB20

8.10. Functional and metabolic alterations of gut microbiota in children with new-onset type 1 diabetes

X Yuan , R Wang , B Han , C Sun , R Chen , H Wei , L Chen , H Du , G Li , Y Yang , X Chen , L Cui , Z Xu , J Fu , J Wu , W Gu , Z Chen , X Fang , H Yang , Z Su , J Wu , Q Li , M Zhang , Y Zhou , L Zhang , G Ji , F Luo

Brief summary: Using in-depth multi-omics analyses of human type 1 diabetes (T1D) samples, the authors profiled gut microbial functional and metabolic alterations. The T1D microbiota showed decreased butyrate production and bile acid metabolism and increased lipopolysaccharide (LPS) biosynthesis. Fecal microbiota transplantation in animal models proved that T1D gut microflora is a causative factor in the regulation of glucose metabolism.The etiology of T...

ey0020.9-6 | Advances in Understanding Central Weight Regulation and Behaviour | ESPEYB20

9.6. Human loss-of-function variants in the serotonin 2C receptor associated with obesity and maladaptive behavior

Y He , B Brouwers , H Liu , K Lawler , EM de Oliveira , DK Lee , Y Yang , AR Cox , JM Keogh , E Henning , R Bounds , A Perdikari , V Ayinampudi , C Wang , M Yu , L Tu , N Zhang , N Yin , J Han , NA Scarcelli , Z Yan , KM Conde , C Potts , JC Bean , M Wang , SM Hartig , L Liao , J Xu , I Barroso , J Mokrosinski , Y Xu , IS Farooqi

Brief summary: This collaborative study identified 13 monoallelic rare loss-of-function (LoF) variants in the serotonin 2C receptor (HTR2C) gene in 19 unrelated individuals with hyperphagia, severe early-onset obesity, and some degree of maladaptive behaviour. The authors used exome sequencing in 2548 individuals with severe obesity and 1117 control individuals without obesity. They found that HTR2C variants cause monogenic obesity by demonstrating t...