Screening for Fabry disease and Hereditary ATTR amyloidosis in idiopathic small-fiber and mixed neuropathy

Muscle & Nerve
Kristin SamuelssonAki Hietaharju


In this study we assessed the value of genetic screening for Fabry disease (FD) and hereditary ATTR amyloidosis in patients with idiopathic small-fiber neuropathy (SFN) or mixed neuropathy in a clinical setting. This was a Nordic multicenter study with 9 participating centers. Patients with idiopathic SFN or mixed neuropathy were included. Genetic sequencing of the TTR and GLA genes was performed. There were 172 patients enrolled in the study. Genetic screening was performed in 155 patients. No pathogenic mutations in the TTR gene were found. A single patient had a possible pathogenic variant, R118C, in the GLA gene, but clinical investigation showed no firm signs of FD. Screening for hereditary ATTR amyloidosis and FD in patients with idiopathic SFN or mixed neuropathy without any additional disease-specific symptoms or clinical characteristics in a Nordic population appears to be of little value in a clinical setting. Muscle Nerve 59:354-357, 2019.


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Mar 30, 2021·Drug Design, Development and Therapy·Arianna BurtonJeffery W Kelly

Related Concepts

Fabry Disease
Clinical Trials
Genetic Techniques
Amyloidosis, Hereditary
Health Center
Genetic Screening (Procedure)
Multicenter Study
Population Group

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