Incidence of nonamyloidogenic mutations in the transthyretin gene in patients with autonomic and small fiber neuropathy.

Abstract excerpt

INTRODUCTION: Mutations of the transthyretin (TTR) gene have been associated with polyneuropathy; the protein product has a tendency to form amyloid deposits in the peripheral nervous system. METHODS: Patients with small fiber neuropathy (SFN) with or without autonomic symptoms were given skin biopsies to assess nerve fiber density. Any patient with autonomic symptoms was assessed for autonomic neuropathy (AN)....

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