gangliosidoses gm2/ataxia

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[Adult GM2 gangliosidosis: improvement of ataxia with GABAergic drugs].

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The authors present a case of adult GM2 gangliosidosis, B1 enzymatic type. The main clinical features found were cerebellar ataxia, proximal lower limb weakness and myokymia. The neurological examination, and the biochemical, electrophysiologic and imaging studies are all described. Decreased

Progressive cerebellar ataxia in juvenile GM2-gangliosidosis type Sandhoff.

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Pendular nystagmus, palatal tremor and progressive ataxia in GM2-gangliosidosis.

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Significance of two point mutations present in each HEXB allele of patients with adult GM2 gangliosidosis (Sandhoff disease) homozygosity for the Ile207-->Val substitution is not associated with a clinical or biochemical phenotype.

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The molecular defects in the HEXB gene encoding the common beta-subunit of lysosomal beta-hexosaminidase A (beta-Hex A, alpha beta) and beta-Hex B (beta beta) were investigated in a Portuguese family affected with late onset Sandhoff disease (GM2-gangliosidosis variant 0). This family comprised two

GM2 Gangliosidosis Variant 0 (Sandhoff Disease) in a Mixed-Breed Dog.

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GM2 gangliosidosis variant 0 (Sandhoff disease, SD) is a fatal, progressive, neurodegenerative lysosomal storage disease caused by simultaneous deficiencies of acid β-hexosaminidases A and B. Canine SD has so far been identified only in two purebreeds. In this article, we present the case of a 10 mo

Late onset GM2 gangliosidosis presenting with motor neuron disease: an autopsy case.

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Adult-onset GM2 gangliosidosis is very rare and only three autopsy cases have been reported up to now. We report herein an autopsy case of adult-onset GM2 gangliosidosis. The patient developed slowly progressive motor neuron disease-like symptoms after longstanding mood disorder and cognitive

[Adult form of GM2-gangliosidosis: a man and 2 sisters with hexosaminidase-A and -B deficiency (Sandhoff disease) and literature review].

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Three adult siblings had atypical progressive spinal muscular atrophy of the limb-girdle type, predominantly sensory polyneuropathy and cerebellar ataxia. Hexosaminidase A and B activity was profoundly decreased in serum, leukocytes and cultured fibroblasts. GM2-gangliosidosis, variant O (Sandhoff

Atypical juvenile presentation of GM2 gangliosidosis AB in a patient compound-heterozygote for c.259G > T and c.164C > T mutations in the GM2A gene.

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GM2-gangliosidosis, AB variant is an extremely rare autosomal recessive inherited disorder caused by mutations in the GM2A gene that encodes GM2 ganglioside activator protein (GM2AP). GM2AP is necessary for solubilisation of GM2 ganglioside in endolysosomes and its presentation to β-hexosaminidase

Newly observed thalamic involvement and mutations of the HEXA gene in a Korean patient with juvenile GM2 gangliosidosis.

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Neuroimaging studies of patients with GM2 gangliosidosis are rare. The thalamus and basal ganglia are principally involved in patients affected by the infantile form of GM2 gangliosidosis. Unlike in the infantile form, in juvenile or adult type GM2 gangliosidosis, progressive cortical and cerebellar

Quantitative oculomotor and nonmotor assessments in late-onset GM2 gangliosidosis.

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A cross-sectional study was performed to evaluate whether quantitative oculomotor measures correlate with disease severity in late-onset GM2 gangliosidosis (LOGG) and assess cognition and sleep as potential early nonmotor features.Ten patients with LOGG

Gene transfer corrects acute GM2 gangliosidosis--potential therapeutic contribution of perivascular enzyme flow.

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The GM2 gangliosidoses are fatal lysosomal storage diseases principally affecting the brain. Absence of β-hexosaminidase A and B activities in the Sandhoff mouse causes neurological dysfunction and recapitulates the acute Tay-Sachs (TSD) and Sandhoff diseases (SD) in infants. Intracranial

[Clinical features of GM1 and GM2 gangliosidosis in own observation].

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BACKGROUND Lysosomal enzyme defects leeds to intracellular storage and cause damage in many organs, almost always affects central nervous system. AIM. The aim of the study was to reveal the location and clinical characteristics of gangliosidosis in pediatric neurology. METHODS Gangliosidoses GM1 and

GM2-gangliosidosis variant 0 (Sandhoff-like disease) in a family of Japanese domestic cats.

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A five-month-old, female Japanese domestic shorthair cat with proportionate dwarfism developed neurological disorders, including ataxia, decreased postural responses and generalised body and head tremors, at between two and five months of age. Leucocytosis due to lymphocytosis with abnormal

The clinical aspects of adult hexosaminidase deficiencies.

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The authors describe the clinical phenotypes of hexosaminidase deficiencies (GM2 gangliosidosis). The symptoms, differently combined, include cerebellar ataxia, motor neuron disease, dystonia, psychosis, neurovegetative troubles with different severity. Morphological changes are evident in rectal,

GM2 ganglioside accumulation causes neuroinflammation and behavioral alterations in a mouse model of early onset Tay-Sachs disease

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Background: Tay-Sachs disease (TSD), a type of GM2-gangliosidosis, is a progressive neurodegenerative lysosomal storage disorder caused by mutations in the α subunit of the lysosomal β-hexosaminidase enzyme. This disease is characterized

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