Article
Author: Strømme, Petter ; Tamim, Abdullah ; Azizimalamiri, Reza ; Hashem, Mais O. ; Veith, Regan ; Alvi, Javeria Raza ; Alkuraya, Fowzan S ; Alabdi, Lama ; Roze, Emmanuel ; Ruedy, Jessica ; Nicita, Francesco ; Galehdari, Hamid ; Ortigoza‐Escobar, Juan Darío ; Dorison, Nathalie ; Sadeghian, Saeid ; Zifarelli, Giovanni ; Houlden, Henry ; Tam, Allison ; Shariati, Gholamreza ; Bauer, Peter ; Ababneh, Faroug ; Bhambhani, Vikas ; Doummar, Diane ; Maroofian, Reza ; Morrow, Michelle M ; Zamani, Mina ; Efthymiou, Stephanie ; Leeuwen, Lisette ; Saberi, Alihossein ; Moreno‐De‐Luca, Andres ; Curry, Cynthia ; Zahraei, Seyed Mohammadsaleh ; Ojea Ponce, Núria ; d'Hardemare, Vincent ; Sultan, Tipu ; Travaglini, Lorena ; Burglen, Lydie
AbstractBackgroundBiallelic ZBTB11 variants have previously been associated with an ultrarare subtype of autosomal recessive intellectual developmental disorder (MRT69).ObjectiveThe aim was to provide insights into the clinical and genetic characteristics of ZBTB11‐related disorders (ZBTB11‐RD), with a particular emphasis on progressive complex movement abnormalities.MethodsThirteen new and 16 previously reported affected individuals, ranging in age from 2 to 50 years, with biallelic ZBTB11 variants underwent clinical and genetic characterization.ResultsAll patients exhibited a range of neurodevelopmental phenotypes with varying severity, encompassing ocular and neurological features. Eleven new patients presented with complex abnormal movements, including ataxia, dystonia, myoclonus, stereotypies, and tremor, and 7 new patients exhibited cataracts. Deep brain stimulation was successful in treating 1 patient with generalized progressive dystonia. Our analysis revealed 13 novel variants.ConclusionsThis study provides additional insights into the clinical features and spectrum of ZBTB11‐RD, highlighting the progressive nature of movement abnormalities in the background of neurodevelopmental phenotype.