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Primary lateral sclerosis and hereditary spastic paraparesis are both rare neurodegenerative disorders characterized by progressive weakness and spasticity of the lower limbs, with involvement of the corticospinal tracts and sparing of anterior horn cells. We describe a consanguineous family in which three sons developed progressive paralysis of the lower(More)
Transient neonatal hyperglycinemia is clinically or biochemically indistinguishable from nonketotic hyperglycinemia at onset. In the case of transient neonatal hyperglycinemia, the elevated plasma and cerebrospinal fluid glycine levels are normalized within 2 to 8 weeks. To elucidate the pathogenesis of transient neonatal hyperglycinemia, we studied three(More)
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