Purpose Pathogenic variants in the X-linked gene NEXMIF (previously KIAA2022) are associated with intellectual disability (ID), autism spectrum disorder, and epilepsy. We aimed to delineate the female and male phenotypic spectrum of NEXMIF encephalopathy. Methods Through an international collaboration, we analyzed the phenotypes and genotypes of 87 patients with NEXMIF encephalopathy. Results Sixty-three females and 24 males (46 new patients) with NEXMIF encephalopathy were studied, with 30 novel variants. Phenotypic features included developmental delay/ID in 86/87 (99%), seizures in 71/86 (83%) and multiple comorbidities.
NEXMIF encephalopathy: an X-linked disorder with male and female phenotypic patterns / Stamberger, Hannah; Hammer, Trine B.; Gardella, Elena; Vlaskamp, Danique R. M.; Bertelsen, Birgitte; Mandelstam, Simone; de Lange, Iris; Zhang, Jing; Myers, Candace T.; Fenger, Christina; Afawi, Zaid; Fuerte, Edith P. Almanza; Andrade, Danielle M.; Balcik, Yunus; Ben Zeev, Bruria; Bennett, Mark F.; Berkovic, Samuel F.; Isidor, Bertrand; Bouman, Arjan; Brilstra, Eva; Busk, Oyvind L.; Cairns, Anita; Caumes, Roseline; Chatron, Nicolas; Dale, Russell C.; de Geus, Christa; Edery, Patrick; Gill, Deepak; Granild-Jensen, Jacob Bie; Gunderson, Lauren; Gunning, Boudewijn; Heimer, Gali; Helle, Johan R.; Hildebrand, Michael S.; Hollingsworth, Georgie; Kharytonov, Volodymyr; Klee, Eric W.; Koeleman, Bobby P. C.; Koolen, David A.; Korff, Christian; Kury, Sebastien; Lesca, Gaetan; Lev, Dorit; Leventer, Richard J.; Mackay, Mark T.; Macke, Erica L.; McEntagart, Meriel; Mohammad, Shekeeb S.; Monin, Pauline; Montomoli, Martino; Morava, Eva; Moutton, Sebastien; Muir, Alison M.; Parrini, Elena; Procopis, Peter; Ranza, Emmanuelle; Reed, Laura; Reif, Philipp S.; Rosenow, Felix; Rossi, Massimiliano; Sadleir, Lynette G.; Sadoway, Tara; Schelhaas, Helenius J.; Schneider, Amy L.; Shah, Krati; Shalev, Ruth; Sisodiya, Sanjay M.; Smol, Thomas; Stumpel, Connie T. R. M.; Stuurman, Kyra; Symonds, Joseph D.; Mau-Them, Frederic Tran; Verbeek, Nienke; Verhoeven, Judith S.; Wallace, Geoffrey; Yosovich, Keren; Zarate, Yuri A.; Zerem, Ayelet; Zuberi, Sameer M.; Guerrini, Renzo; Mefford, Heather C.; Patel, Chirag; Zhang, Yue-Hua; Moller, Rikke S.; Scheffer, Ingrid E.. - In: GENETICS IN MEDICINE. - ISSN 1098-3600. - ELETTRONICO. - 23:(2021), pp. 363-373. [10.1038/s41436-020-00988-9]
NEXMIF encephalopathy: an X-linked disorder with male and female phenotypic patterns
Montomoli, Martino;Parrini, Elena;Guerrini, Renzo;
2021
Abstract
Purpose Pathogenic variants in the X-linked gene NEXMIF (previously KIAA2022) are associated with intellectual disability (ID), autism spectrum disorder, and epilepsy. We aimed to delineate the female and male phenotypic spectrum of NEXMIF encephalopathy. Methods Through an international collaboration, we analyzed the phenotypes and genotypes of 87 patients with NEXMIF encephalopathy. Results Sixty-three females and 24 males (46 new patients) with NEXMIF encephalopathy were studied, with 30 novel variants. Phenotypic features included developmental delay/ID in 86/87 (99%), seizures in 71/86 (83%) and multiple comorbidities.
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