Congenital brain dysgenesis due to glutamine synthetase deficiency

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Synonyms: Inherited GS deficiency | Inherited glutamine synthetase deficiency

A rare neurometabolic disease characterized by neonatal onset of severe epileptic encephalopathy with brain malformations (including cerebral and cerebellar atrophy white matter abnormalities delayed gyration or complete agyria and thin corpus callosum) generalized hypotonia and lack of normal development. Additional features include facial dysmorphism and necrolytic erythema of the skin. Biochemical hallmarks are decreased levels of glutamine in body fluids and chronic hyperammonemia. Death may occur in the early post-natal period due to multiple organ failure.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version June 2024

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Advocacy Organizations

Mississippi Metabolics Foundation

Our mission at Mississippi Metabolics Foundation (MMF) is to advocate, educate, and support families in MS affected by genetic metabolic disorders/inborn errors of metabolism (IEM's). MMF promotes initiatives and further advancements in legislation, education, research, clinical trials, studies, therapies, targeted treatments, and eventual cures for IEM’s and all rare diseases.

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Clinical Trials

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