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We report a new case of fatal familial insomnia, characterized by mutation of codon 178 of prion protein gene and by methionine homozygosity at codon 129. This homozygotic form is revealed by severe insomnia and dysautonomia. Microscopic lesions, neuronal loss and gliosis, are limited to a part of the thalamus (dorso-median and anterior nuclei). From(More)
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