[Demonstration of genetic mutation in most of the amyloid neuropathies with sporadic occurrence].

Abstract excerpt

The Portuguese type of familial amyloid polyneuropathy (FAP type I) is a disabling autosomic dominant disorder, which is caused by a point mutation in the transthyretin (TTR) gene. Other TTR gene mutations have been reported recently in other FAP. In the absence of monoclonal gammopathy, sporadic amyloid neuropathies raise a problem for their pathogenicity. In this study, we have looked for TTR gene mutations in...

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