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Revista Cubana de Pediatría

versión impresa ISSN 0034-7531

Resumen

POZO ALONSO, Albia Josefina; POZO LAUZAN, Desiderio Rafael; ESTOL DE LA GUARDIA, Norka  y  MENENDEZ SAINZ, Caridad. Tay-Sachs disease. Rev Cubana Pediatr [online]. 2014, vol.86, n.4, pp.529-534. ISSN 0034-7531.

Tay-Sachs disease is a progressive autosomal recessive inherited neurodegenerative disorder caused by Beta-hexosaminidase A enzyme deficiency that in turn provokes GM2 ganglioside accumulation in the lysosomes. It is included in the sphyngolipidoses classification. Among the sphyngolipidoses that present with cherry-red spot in the macula, Tay-Sachs disease is the only one that does not show hepatosplenomegaly. The most frequent variant begins at the breast-feeding phase. This report presented a male nursling who was diagnosed with Tay-Sachs disease at the age of 8 months. At 4 months of age, he had begun getting some fright reactions. At 6 months-old, he began losing his previously acquired skills and suffering myoclonic seizures. The cause was the reduced specific activity of the hexosaminidase A enzyme in leukocytes.

Palabras clave : Tay-Sachs disease; neurodegenerative disease; lysosomal storage disease; sphyngolipidosis; GM2 gangliosidosis; cherry-red spot.

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