Article
A novel compound heterozygous YY1AP1 variant in Grange syndrome: importance of early signs in preventing life-threatening vascular complications.
Journal of human genetics - 1 Aug 2026
Unsel-Bolat Gul, Tezcan Neslihan, Genç-Akdağ Dilan, Gerik-Celebi Hamide Betül, Tezcan Alperen, Bolat Hilmi
Abstract excerpt
BACKGROUND: Grange syndrome is an ultra-rare autosomal recessive disorder caused by biallelic loss-of-function variants in the YY1AP1 gene. It is clinically characterized by multisystem involvement, including vascular stenosis, brachysyndactyly, osteopenia, cardiac anomalies, and neurodevelopmental delay. METHODS: Our case was followed up in the Child and Adolescent Psychiatry clinic with the diagnosis of...
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