Frontiers in cellular neuroscience

Daily changes in a key enzyme's activity and the effects of timed motor training in a mouse model of Parkinson's disease linked to Gba1

Updated

Abstract

Mutations in the glucocerebrosidase gene are a major genetic risk factor for Parkinson's disease.

  • Dysfunctional glucocerebrosidase leads to the accumulation of glucosylceramide in lysosomes.
  • The pathogenic L444P variant alters enzyme structure and activity.
  • Impaired clearance of monomeric α-synuclein is associated with glucocerebrosidase dysfunction.
  • Investigations suggest that glucocerebrosidase activity may exhibit daily rhythmicity.
  • Fixed-time rotarod activity could modulate glucocerebrosidase activity in healthy and Gba1-mutant mice.

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