ISSN 1662-4009 (online)

ey0020.3-15 | Advances in Growth, Bone Biology, and Mineral Metabolism | ESPEYB20

3.15. Lymphatic vessels in bone support regeneration after injury

L Biswas , J Chen , J De Angelis , A Singh , C Owen-Woods , Z Ding , JM Pujol , N Kumar , F Zeng , SK Ramasamy , AP Kusumbe

In Brief: Current dogma is that lymphatic vessels are absent in bone and bone marrow. Using advanced 3D-imaging and mouse genetics, these authors show the presence of lymph vessels in bone. Moreover, they show that genotoxic stress causes lymph vessels expansion and lymphangiogenesis in bone, which in turn promotes bone and hematopoietic regeneration.Commentary: The lymphatic system maintains fluid homeostasis, removes cellular waste products and produce...

ey0018.10-5 | (1) | ESPEYB18

10.5. Type 1 diabetes mellitus and its oral tolerance therapy

RF Mao , YY Chen , J Zhang , X Chang , YF Wang

World J Diabetes. 2020;11(10):400–415. doi: 10.4239/wjd.v11.i10.400Based on a review of the proposed mechanisms of the development of T1DM, the authors provide an overview of oral tolerance therapies for T1DM conducted in both animal models and clinical trials. This key paper also outlines its future perspectives.As a mainly T cell-mediated autoimmune disease, T...

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...

ey0020.4-11 | Psychological Effects of Hormone Treatments | ESPEYB20

4.11. Psychosocial functioning in transgender youth after 2 years of hormones

D Chen , J Berona , YM Chan , D Ehrensaft , R Garofalo , MA Hidalgo , SM Rosenthal , AC Tishelman , J Olson-Kennedy

Brief summary: A four centre prospective longitudinal study of 315 transgender and non-binary adolescents in the USA showed improvement in gender congruence and appearance and some reduction of depression and anxiety (but not in birth-registered males) after 2 years of gender affirming hormone (GAH) treatment.The race is on to provide clear evidence to support hormonal intervention for transgender adolescents. This longitudinal study employed a number of...

ey0017.11-10 | Body Weight Regulation and Insulin Sensitivity | ESPEYB17

11.10. The [beta]3-adrenergic receptor agonist mirabegron improves glucose homeostasis in obese humans

BS Finlin , H Memetimin , B Zhu , AL Confides , HJ Vekaria , RH El Khouli , ZR Johnson , PM Westgate , J Chen , AJ Morris , PG Sullivan , EE Dupont-Versteegden , PA Kern

To read the full abstract: J Clin Invest. 2020;130(5):2319–2331.This clinical study assessed the effect of the β3-adrenergic agonist mirabegron on glucose homeostasis in obese individuals.Chronic activation of β3-receptors in mice leads to the appearance of brown-like (e.g. ‘beige’) adipocytes in white adipose tissue, a process referred to as ...

ey0021.12-7 | Genetics of T2D in Children and Adolescents | ESPEYB21

12.7. Genetic architecture and biology of youth-onset type 2 diabetes

SH Kwak , S Srinivasan , L Chen , J Todd , JM Mercader , ET Jensen , J Divers , AK Mottl , C Pihoker , RG Gandica , LM Laffel , E Isganaitis , MW Haymond , LL Levitsky , TI Pollin , JC Florez , J Flannick

Brief Summary: Rare forms of diabetes (‘monogenic diabetes’) are caused by a single rare gene variant, while adult-onset T2D is influenced by thousands of common genetic variants. This study reveals that youth-onset T2D shares some genetic features with both monogenic and typical adult-onset T2D, marked by both common and rare genetic variantsComment: A significant challenge is understanding why the course of T2D in children and teenagers is mo...