A New Clue in Developmental Disorders

Bi-allelic mutations associated with intellectual disability and brain abnormalities

1

Bi-allelic variants in the ASTN1 gene are linked to various neurodevelopmental disorders, impacting neuronal migration during brain development.
2

The study identified 18 individuals from 12 families with likely damaging variants in ASTN1, resulting in developmental delays and intellectual disabilities.
3

Affected individuals exhibited a range of clinical features, including autism spectrum disorder, ADHD, epilepsy, and dysmorphic facial features.
4

Brain imaging revealed variable results, with some individuals showing normal MRI while others had significant abnormalities like lissencephaly.
5

The findings underscore the need for comprehensive genomic testing to identify rare variants and consider complex inheritance in neurodevelopmental disorders.

1