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ALG6-CDG: a recognizable phenotype with epilepsy, proximal muscle weakness, ataxia and behavioral and limb anomalies

Introduction Alpha-1,3-glucosyltransferase congenital disorder of glycosylation (ALG6-CDG) is a congenital disorder of glycosylation. The original patients were described with hypotonia, developmental disability, epilepsy, and increased bleeding tendency. Methods Based on Euroglycan database registr...

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Main Authors: Morava-Kozicz, Eva (Author) , Tiemes, Vera (Author) , Thiel, Christian (Author) , Seta, Nathalie (Author) , Lonlay, Pascale de (Author) , Klerk, Hans de (Author) , Mulder, Margot (Author) , Rubio‐Gozalbo, Estela (Author) , Visser, Gepke (Author) , Hasselt, Peter van (Author) , Horovitz, Dafne D. G. (Author) , Souza, Carolina Fischinger Moura de (Author) , Schwartz, Ida V. D. (Author) , Green, Andrew (Author) , Al‐Owain, Mohammed (Author) , Uziel, Graciella (Author) , Sigaudy, Sabine (Author) , Chabrol, Brigitte (Author) , Spronsen, Franc-Jan van (Author) , Steinert, Martin (Author) , Komini, Eleni (Author) , Wurm, Donald (Author) , Bevot, Andrea (Author) , Ayadi, Addelkarim (Author) , Huijben, Karin (Author) , Dercksen, Marli (Author) , Witters, Peter (Author) , Jaeken, Jaak (Author) , Matthijs, Gert (Author) , Lefeber, Dirk J. (Author) , Wevers, Ron A. (Author)
Format: Article (Journal)
Language:English
Published: 10 June 2016
In: Journal of inherited metabolic disease
Year: 2016, Volume: 39, Issue: 5, Pages: 713-723
ISSN:1573-2665
DOI:10.1007/s10545-016-9945-x
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s10545-016-9945-x
Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1007/s10545-016-9945-x
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Author Notes:Eva Morava, Vera Tiemes, Christian Thiel, Nathalie Seta, Pascale de Lonlay, Hans de Klerk, Margot Mulder, Estela Rubio‐Gozalbo, Gepke Visser, Peter van Hasselt, Dafne D.G. Horovitz, Carolina Fischinger Moura de Souza, Ida V.D. Schwartz, Andrew Green, Mohammed Al‐Owain, Graciella Uziel, Sabine Sigaudy, Brigitte Chabrol, Franc-Jan van Spronsen, Martin Steinert, Eleni Komini, Donald Wurm, Andrea Bevot, Addelkarim Ayadi, Karin Huijben, Marli Dercksen, Peter Witters, Jaak Jaeken, Gert Matthijs, Dirk J. Lefeber, Ron A. Wevers
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Summary:Introduction Alpha-1,3-glucosyltransferase congenital disorder of glycosylation (ALG6-CDG) is a congenital disorder of glycosylation. The original patients were described with hypotonia, developmental disability, epilepsy, and increased bleeding tendency. Methods Based on Euroglycan database registration, we approached referring clinicians and collected comprehensive data on 41 patients. Results We found hypotonia and developmental delay in all ALG6-CDG patients and epilepsy, ataxia, proximal muscle weakness, and, in the majority of cases, failure to thrive. Nine patients developed intractable seizures. Coagulation anomalies were present in <50 % of cases, without spontaneous bleedings. Facial dysmorphism was rare, but seven patients showed missing phalanges and brachydactyly. Cyclic behavioral change, with autistic features and depressive episodes, was one of the most significant complaints. Eleven children died before the age of 4 years due to protein losing enteropathy (PLE), sepsis, or seizures. The oldest patient was a 40 year-old Dutch woman. The most common pathogenic protein alterations were p.A333V and p.I299Del, without any clear genotype-phenotype correlation. Discussion ALG6-CDG has been now described in 89 patients, making it the second most common type of CDG. It has a recognizable phenotype and a primary neurologic presentation.
Item Description:Gesehen am 08.09.2020
Physical Description:Online Resource
ISSN:1573-2665
DOI:10.1007/s10545-016-9945-x

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