Clinical and genetic heterogeneity of branching enzyme deficiency (glycogenosis type IV)

C. Bruno, O. P. Van Diggelen, D. Cassandrini, M. Gimpelev, B. Giuffrè, M. A. Donati, P. Introvini, A. Alegria, S. Assereto, L. Morandi, M. Mora, E. Tonoli, S. Mascelli, M. Traverso, E. Pasquini, M. Bado, L. Vilarinho, G. Van Noort, F. Mosca, S. DiMauro & 2 others F. Zara, C. Minetti

Research output: Contribution to journalArticle

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Abstract

Background: Glycogen storage disease type IV (GSD-IV) is a clinically heterogeneous autosomal recessive disorder due to glycogen branching enzyme (GBE) deficiency and resulting in the accumulation of an amylopectin-like polysaccharide. The typical presentation is liver disease of childhood, progressing to lethal cirrhosis. The neuromuscular form of GSD-IV varies in onset (perinatal, congenital, juvenile, or adult) and severity. Objective: To identify the molecular bases of different neuromuscular forms of GSD-IV and to establish possible genotype/phenotype correlations. Methods: Eight patients with GBE deficiency had different neuromuscular presentations: three had fetal akinesia deformation sequence (FADS), three had congenital myopathy, one had juvenile myopathy, and one had combined myopathic and hepatic features. In all patients, the promoter and the entire coding region of the GBE gene at the RNA and genomic level were sequenced. Results: Nine novel mutations were identified, including nonsense, missense, deletion, insertion, and splice-junction mutations. The three cases with FADS were homozygous, whereas all other cases were compound heterozygotes. Conclusions: This study expands the spectrum of mutations in the GBE gene and confirms that the neuromuscular presentation of GSD-IV is clinically and genetically heterogeneous.

Original languageEnglish
Pages (from-to)1053-1058
Number of pages6
JournalNeurology
Volume63
Issue number6
Publication statusPublished - Sep 29 2004

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Glycogen Storage Disease Type IV
1,4-alpha-Glucan Branching Enzyme
Genetic Heterogeneity
Mutation
Myotonia Congenita
Amylopectin
Genetic Association Studies
Muscular Diseases
Heterozygote
Genes
Polysaccharides
Liver Diseases
Fibrosis
RNA
Liver

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Bruno, C., Van Diggelen, O. P., Cassandrini, D., Gimpelev, M., Giuffrè, B., Donati, M. A., ... Minetti, C. (2004). Clinical and genetic heterogeneity of branching enzyme deficiency (glycogenosis type IV). Neurology, 63(6), 1053-1058.

Clinical and genetic heterogeneity of branching enzyme deficiency (glycogenosis type IV). / Bruno, C.; Van Diggelen, O. P.; Cassandrini, D.; Gimpelev, M.; Giuffrè, B.; Donati, M. A.; Introvini, P.; Alegria, A.; Assereto, S.; Morandi, L.; Mora, M.; Tonoli, E.; Mascelli, S.; Traverso, M.; Pasquini, E.; Bado, M.; Vilarinho, L.; Van Noort, G.; Mosca, F.; DiMauro, S.; Zara, F.; Minetti, C.

In: Neurology, Vol. 63, No. 6, 29.09.2004, p. 1053-1058.

Research output: Contribution to journalArticle

Bruno, C, Van Diggelen, OP, Cassandrini, D, Gimpelev, M, Giuffrè, B, Donati, MA, Introvini, P, Alegria, A, Assereto, S, Morandi, L, Mora, M, Tonoli, E, Mascelli, S, Traverso, M, Pasquini, E, Bado, M, Vilarinho, L, Van Noort, G, Mosca, F, DiMauro, S, Zara, F & Minetti, C 2004, 'Clinical and genetic heterogeneity of branching enzyme deficiency (glycogenosis type IV)', Neurology, vol. 63, no. 6, pp. 1053-1058.
Bruno C, Van Diggelen OP, Cassandrini D, Gimpelev M, Giuffrè B, Donati MA et al. Clinical and genetic heterogeneity of branching enzyme deficiency (glycogenosis type IV). Neurology. 2004 Sep 29;63(6):1053-1058.
Bruno, C. ; Van Diggelen, O. P. ; Cassandrini, D. ; Gimpelev, M. ; Giuffrè, B. ; Donati, M. A. ; Introvini, P. ; Alegria, A. ; Assereto, S. ; Morandi, L. ; Mora, M. ; Tonoli, E. ; Mascelli, S. ; Traverso, M. ; Pasquini, E. ; Bado, M. ; Vilarinho, L. ; Van Noort, G. ; Mosca, F. ; DiMauro, S. ; Zara, F. ; Minetti, C. / Clinical and genetic heterogeneity of branching enzyme deficiency (glycogenosis type IV). In: Neurology. 2004 ; Vol. 63, No. 6. pp. 1053-1058.
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AU - Bruno, C.

AU - Van Diggelen, O. P.

AU - Cassandrini, D.

AU - Gimpelev, M.

AU - Giuffrè, B.

AU - Donati, M. A.

AU - Introvini, P.

AU - Alegria, A.

AU - Assereto, S.

AU - Morandi, L.

AU - Mora, M.

AU - Tonoli, E.

AU - Mascelli, S.

AU - Traverso, M.

AU - Pasquini, E.

AU - Bado, M.

AU - Vilarinho, L.

AU - Van Noort, G.

AU - Mosca, F.

AU - DiMauro, S.

AU - Zara, F.

AU - Minetti, C.

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N2 - Background: Glycogen storage disease type IV (GSD-IV) is a clinically heterogeneous autosomal recessive disorder due to glycogen branching enzyme (GBE) deficiency and resulting in the accumulation of an amylopectin-like polysaccharide. The typical presentation is liver disease of childhood, progressing to lethal cirrhosis. The neuromuscular form of GSD-IV varies in onset (perinatal, congenital, juvenile, or adult) and severity. Objective: To identify the molecular bases of different neuromuscular forms of GSD-IV and to establish possible genotype/phenotype correlations. Methods: Eight patients with GBE deficiency had different neuromuscular presentations: three had fetal akinesia deformation sequence (FADS), three had congenital myopathy, one had juvenile myopathy, and one had combined myopathic and hepatic features. In all patients, the promoter and the entire coding region of the GBE gene at the RNA and genomic level were sequenced. Results: Nine novel mutations were identified, including nonsense, missense, deletion, insertion, and splice-junction mutations. The three cases with FADS were homozygous, whereas all other cases were compound heterozygotes. Conclusions: This study expands the spectrum of mutations in the GBE gene and confirms that the neuromuscular presentation of GSD-IV is clinically and genetically heterogeneous.

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