CASE REPORT
MYT1L mutation in a patient with severe early-onset obesity and intellectual disability
 
More details
Hide details
1
Hospital Santa Luzia, Portugal 2Hospital Pedro Hispano, Portugal
 
 
Submission date: 2023-11-21
 
 
Final revision date: 2024-01-02
 
 
Acceptance date: 2024-01-07
 
 
Publication date: 2024-06-21
 
 
Corresponding author
André Costa e Silva
Dr. André Costa e Silva, Hospital Santa Luzia, Portugal
 
 
Pediatr Pol 2024;99(2):164-166
 
KEYWORDS
TOPICS
ABSTRACT
Children suffering from intellectual disability, dysmorphic features and organ-specific developmental abnormalities should undergo genetic testing. Entities such as X fragile syndrome should be investigated. If we add obesity to the “equation”, Prader-Willi and Bardet-Biedl are thus far the most common syndromic conditions to be found. The evolution of genetic testing brought several other genetic determinants of developmental delay. We report on a 4-year-old girl presenting with obesity and delayed neurological, cognitive and motor development whose genetic testing by array-based comparative genomic hybridization exposed a partial deletion at chromosome 2p25.3, containing the gene MYT1L.
REFERENCES (10)
1.
Vasudevan P, Suri M. A clinical approach to developmental delay and intellectual disability. Clin Med (Lond) 2017; 17: 558-561.
 
2.
Mithyantha R, Kneen R, McCann E, Gladstone M. Current evidence-based recommendations on investigating children with global developmental delay. Arch Dis Child 2017; 102: 1071-1076.
 
3.
Di Cesare M, Sorić M, Bovet P, et al. The epidemiological burden of obesity in childhood: a worldwide epidemic requiring urgent action. BMC Med 2019; 17: 212.
 
4.
Huvenne H, Dubern B, Clément K, Poitou C. Rare genetic forms of obesity: clini-cal approach and current treatments in 2016. Obes Facts 2016; 9: 158-173.
 
5.
Kaur Y, de Souza RJ, Gibson WT, Meyre D. A systematic review of genetic syndromes with obesity. Obes Rev 2017; 18: 603-634.
 
6.
Stevens SJC, van Ravenswaaij-Arts CMA, Janssen JWH, et al. MYT1L is a candidate gene for intellectual disability in patients with 2p25.3 (2pter) deletions. Am J Med Genet Part A 2011; 155: 2739-2745.
 
7.
Carvalho LML, D’Angelo CS, Mustacchi Z, et al. A novel MYT1L mutation in a boy with syndromic obesity: Case report and literature review. Obes Res Clin Pract 2021; 15: 124-132.
 
8.
Loid P, Mäkitie R, Costantini A, Viljakainen H, Pekkinen M, Mäkitie O. A novel MYT1L mutation in a patient with severe early-onset obesity and intellectual disability. Am J Med Genet A 2018; 176: 1972-1975.
 
9.
Blanchet P, Bebin M, Bruet S, et al. MYT1L mutations cause intellectual disability and variable obesity by dysregulating gene expression and development of the neuroendocrine hypothalamus. PLoS Genet 2017; 13: e1006957.
 
10.
Coursimault J, Guerrot AM, Morrow MM, et al. MYT1L-associated neurodevelopmental disorder: description of 40 new cases and literature review of clinical and molecular aspects. Hum Genet 2022; 141: 65-80.
 
Journals System - logo
Scroll to top