Excess vitamin a might contribute to submucous clefting by inhibiting WNT-mediated bone formation.
Charlotte Lucienne Jacqueline Maria KrutzenLaury A RoaMarjon BloemenJohannes W Von den HoffPublished in: Orthodontics & craniofacial research (2022)
Our data indicate that ATRA (vitamin A) inhibits bone formation by reducing Wnt signalling. This might contribute to the molecular aetiology of submucous clefting.