ISSN 1662-4009 (online)

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...

ey0020.8-15 | New Hopes | ESPEYB20

8.15. Exocrine pancreas regeneration modifies original pancreas to alleviate diabetes in mouse models

X Kou , J Liu , D Wang , M Yu , C Li , L Lu , C Chen , D Liu , W Yu , T Yu , Y Liu , X Mao , A Naji , T Cai , L Sun , S Shi

Brief summary: In this experimental study, pancreas-derived mesenchymal stem cells (PMSCs) were implanted into the kidney capsule of mice with streptozotocin (STZ)-induced diabetes. PMSCs led to increased levels of IL-6 in T-helper 1 and T-helper 17 cells, which transiently activated tumor necrosis factor-alpha (TNF-α) and interferon-gamma (IFN-γ), which in turn decreased levels of interleukin-17. This was associated with exocrine pancreas regeneration and rescue of ...

ey0021.11-16 | Adipocyte Dysfunction and Obesity Related Comorbidities | ESPEYB21

11.16. The role of adipogenic capacity and dysfunctional subcutaneous adipose tissue in the inheritance of type 2 diabetes mellitus: cross-sectional study

M Šiklova , V Šramkova , M Koc , E Krauzova , T Čižkova , B Ondrůjova , M Wilhelm , Z Varaliova , O Kuda , J Neubert , L Lambert , M Elkalaf , J Gojda , L Rossmeislova

Brief Summary: This cross-sectional study in n=19 first-degree relatives of type 2 diabetes mellitus (T2DM) patients and n=19 control individuals without obesity found that while the intrinsic adipogenic potential of subcutaneous adipose tissue (SAT) is unaffected by a family history of T2DM, alterations in lysyl oxidase (LOX) mRNA expression and polyunsaturated fatty acids in triglycerides are linked to increased T2DM risk, independent of obesity. These findings suggest that ...

ey0018.2-20 | Maternal Obesity and Long-term Infant Consequences | ESPEYB18

2.20. Maternal obesity influences placental nutrient transport, inflammatory status, and morphology in human term placenta

P Nogues , E Dos Santos , A Couturier-Tarrade , P Berveiller , L Arnould , E Lamy , S Grassin-Delyle , F Vialard , MN Dieudonne

J Clin Endocrinol Metab. 2021 Mar 25;106(4):e1880–e1896. doi: 10.1210/clinem/dgaa660. PMID: 32936881.By studying placentas from normal weight mothers and obese (non-diabetic) mothers, the authors found that maternal obesity was associated with lower expression of nutrient transporters (such as for glucose and amino acids), surprisingly fewer immune cells, and compromised endocrine func...

ey0018.4-5 | Growth Hormone Therapy: Safety | ESPEYB18

4.5. Long-term safety of growth hormone treatment in childhood: two Large observational studies: nordiNet IOS and ANSWER

L Savendahl , M Polak , P Backeljauw , JC Blair , BS Miller , TR Rohrer , A Hokken-Koelega , A Pietropoli , N Kelepouris , J Ross

J Clin Endocrinol Metab. 2021 May 13;106(6):1728–1741. doi: 10.1210/clinem/dgab080. PMID: 33571362This report gathered data from two large observational studies (NordiNet International Outcome Study and ANSWER Program) aimed at assessing the incidence of adverse drug reactions (ADRs), serious adverse events (SAEs), and their relation with rhGH dose. The whole study cohort included 37,7...

ey0018.12-2 | Type 2 Diabetes | ESPEYB18

12.2. Identification of pathognomonic purine synthesis biomarkers by metabolomic profiling of adolescents with obesity and type 2 diabetes

J Concepcion , K Chen , R Saito , J Gangoiti , E Mendez , ME Nikita , BA Barshop , L Natarajan , K Sharma , JJ Kim

PLoS One. 2020 Jun 26;15(6):e0234970. doi: 10.1371/journal.pone.0234970.In brief: Metabolite signatures were compared between children with normal weight, obesity, and both obesity and T2DM, by measuring 273 analytes in fasting plasma and a 24-hour urine sample. Twenty-two urine metabolites were uniquely associated with T2DM. Adolescents with T2DM have altered purine nucleoti...

ey0019.4-3 | Important for clinical practice | ESPEYB19

4.3. Growth hormone treatment in the pre-transplant period is associated with superior outcome after pediatric kidney transplantation

C Jagodzinski , S Mueller , R Kluck , K Froede , L Pavicic , J Gellermann , D Mueller , U Querfeld , D Haffner , M Zivicnjak

Pediatr Nephrol, 2022. 37(4): p. 859-869 PMID: 34542703Brief Summary: This prospective observational cohort study investigated growth rate after kidney transplant in children with chronic kidney disease (CKD) and growth failure, who received or did not receive rhGH treatment before transplantation. Patients pre-treated with rhGH showed better growth rates with taller height SDS at 7 years after transplantation. Positive effects of pre-transplant...

ey0019.5-14 | Translational highlights | ESPEYB19

5.14. Fibrillin-1 deficiency in the outer perichondrium causes longitudinal bone overgrowth in mice with Marfan syndrome

L Sedes , E Wondimu , B Crockett , J Hansen , A Cantalupo , K Asano , R Iyengar , D.B Rifkin , S Smaldone , F Ramirez

Hum Mol Genet ddac107 (2022)Abstract: https://pubmed.ncbi.nlm.nih.gov/35567544/In Brief: Disproportionate tall stature represents a hallmark feature of Marfan syndrome, although specific mechanisms underlying linear bone overgrowth are unclear. This study used an ex vivo model system to identify dysregulation of TGFβ-binding proteins in the outer perichondrium as causative for the bon...

ey0019.7-2 | Clinical Guidance | ESPEYB19

7.2. Genetic evaluation supports differential diagnosis in adolescent patients with delayed puberty

T Saengkaew , HR Patel , K Banerjee , G Butler , MT Dattani , M McGuigan , HL Storr , RH Willemsen , L Dunkel , SR Howard

Eur J Endocrinol. 2021 Oct 8;185(5):617-627. doi: 10.1530/EJE-21-0387. PMID: 34403359. https://eje.bioscientifica.com/view/journals/eje/185/5/EJE-21-0387.xmlBrief Summary: This study investigates the role of Whole Exome Sequencing in the differential diagnosis of delayed puberty, evaluating a geno...

ey0019.7-11 | Basic Science | ESPEYB19

7.11. Selective depletion of adult GFAP-expressing tanycytes leads to hypogonadotropic hypogonadism in males

L Butruille , M Batailler , ML Cateau , A Sharif , V Leysen , V Prevot , P Vaudin , D Pillon , M Migaud

Front Endocrinol (Lausanne). 2022 Mar 16;13:869019. doi: 10.3389/fendo.2022.869019. PMID: 35370973. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8966543/Brief Summary: This mouse study explores the function of alpha-tanycytes, which are neurogenic stem cells located in the medio-basal hypothalamus and expres...