George A, Navi S, Nanda PM, Daniel R, Anand K, Banerjee S, Panigrahi I, Dayal D. Clinical and molecular characterisation of children with monogenic obesity: a case series.
Pediatr Endocrinol Diabetes Metab 2024;
30:104-109. [PMID:
39026488 PMCID:
PMC11249795 DOI:
10.5114/pedm.2024.140934]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/24/2024] [Indexed: 07/20/2024]
Abstract
INTRODUCTION
To study the clinical profile and molecular diagnosis of children with severe early-onset non-syndromic monogenic obesity.
METHODS
The clinical and molecular data (performed using whole exome sequencing) of 7 children with early-onset (< 5 years) non-syndromic monogenic obesity were extracted from the Obesity Clinic files and analysed retrospectively.
RESULTS
The median (IQR) age at presentation was 18 (10.5-27) months. Of the 7 patients, 5 were boys, 3 had a history of parental consanguinity, and 4 had a family history of severe early-onset obesity. All patients exhibited hyperphagia and showed signs of insulin resistance. Dyslipidaemia and fatty liver were observed in 4. The variants identified in 6 patients included 2 in leptin receptor, and one each in melanocortin 4 receptor, pro-opiomelanocortin, leptin, and neurotrophic tyrosine kinase receptor type 2 genes. Notably, 4 of these variants were novel.
CONCLUSIONS
This case series provides valuable insights into the spectrum of genetic mutations associated with non-syndromic monogenic obesity in North Indian children. The findings underscore the significance of next-generation sequencing in identifying the aetiology of severe early-onset obesity.
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