AI Article Synopsis

  • Recent research has uncovered mutations in TARDBP and FUS that are linked to familial ALS, boosting our understanding of the disease.
  • FUS-positive inclusions were discovered in certain cases of frontotemporal lobar degeneration (FTLD) that lacked TDP-43, leading to further investigation of FUS in FTLD and FTLD-ALS patients.
  • A specific mutation, p.Arg521His, was found in a patient whose symptoms began with behavioral issues and progressed to ALS, indicating that FUS mutations may have a broader impact on diseases related to FTLD.

Article Abstract

Rapid advances were made in the knowledge of amyotrophic lateral sclerosis (ALS) with the recent identification of TARDBP and FUS mutations in familial ALS. More recently, FUS-positive inclusions were found in a subset of TDP-43-negative frontotemporal lobar degeneration (FTLD) prompting us to analyze FUS in FTLD and FTLD-ALS patients. The p.Arg521His mutation was identified in a patient who initially had behavioral disorders and rapidly developed ALS. Although the frequency of mutations is low, our study enlarges the phenotypes associated with FUS mutations and shows that FUS could also play a direct pathogenic role in FTLD spectrum of diseases.

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