ISSN 1662-4009 (online)

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Yearbook of Paediatric Endocrinology 2023

9. Obesity and Weight Regulation

Genetic Obesity and Genetic Risk Score

ey0020.9-7 | Genetic Obesity and Genetic Risk Score | ESPEYB20

9.7. Rare antagonistic leptin variants and severe, early-onset obesity

JB Funcke , B Moepps , J Roos , J von Schnurbein , K Verstraete , E Frohlich-Reiterer , K Kohlsdorf , A Nunziata , S Brandt , A Tsirigotaki , A Dansercoer , E Suppan , B Haris , KM Debatin , SN Savvides , IS Farooqi , K Hussain , P Gierschik , P Fischer-Posovszky , M Wabitsch

Brief summary: The authors provide the first description of antagonistic hormone mutations as the cause of congenital disease in humans. The paper describes detailed characterizations of two novel, antagonistic leptin mutations underlying a formerly unrecognized form of congenital leptin dysfunction and delineate the challenges these mutations pose to the diagnosis and therapy of the disease.After the initial description of biologically inactive leptin v...

ey0020.9-8 | Genetic Obesity and Genetic Risk Score | ESPEYB20

9.8. A National Multicenter Study of Leptin (LEP) and Leptin Receptor (LEPR) deficiency and systematic review

O Besci , SN Fırat , S Ozen , S Cetinkaya , L Akın , Y Kor , Z Pekkolay , S Ozalkak , E Ozsu , SS Erdeve , S Poyrazoglu , M Berberglu , M Aydin , T Omma , B Akinici , K Demir , EA Oral

Brief summary: This paper describes 18 patients with bi-allelic leptin deficiency (LEP, n=11) or leptin receptor deficiency (LEPR, n=7), including 10 new cases and two novel variants. In addition, in a review of the literature (until July 2022), the authors identified n=75 patients living with LEP deficiency and n=90 with LEPR deficiency (n=152 included for comparison between groups).<p class=...

ey0020.9-9 | Genetic Obesity and Genetic Risk Score | ESPEYB20

9.9. Genetic risk score enhances the risk prediction of severe obesity in adult survivors of childhood cancer

Y Sapkota , W Qiu , SB Dixon , CL Wilson , Z Wang , J Zhang , W Leisenring , EJ Chow , S Bhatia , GT Armstrong , LL Robison , MM Hudson , A Delaney , Y Yasui

Brief summary: This study evaluated the ability of genetic risk scores to predict severe obesity in adult survivors of childhood cancer. Data from 2548 survivors of European ancestry from the St. Jude Lifetime Cohort Study was analyzed and findings were validated in 6064 survivors from the Childhood Cancer Survivor Study. Survivors with higher genetic risk scores had significantly higher odds of severe obesity. Adding genetic risk scores to prediction models that included canc...