Classic Infantile Research Paper

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Pages: 1

Classic infantile (type 1) GM1 gangliosidosis is the most severe type, with onset shortly after birth (usually within 6 months of age). Affected infants typically appear normal until onset, but development regression (loss of acquired milestones) eventually occurs. Signs and symptoms may include neurodegeneration, seizures, liver and spleen enlargement, coarsening of facial features, skeletal irregularities, joint stiffness, a distended abdomen, muscle weakness, an exaggerated startle response to sound, and problems with gait (manner of walking). About half of people with this type develop cherry-red spots in the eye. Children may become deaf and blind by one year of age. Affected children typically do not live past 2 years of age.

Juvenile