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FEBS Lett ; 593(16): 2139-2150, 2019 08.
Article in English | MEDLINE | ID: mdl-31211853

ABSTRACT

The abnormal accumulation of ß-amyloid peptide (Aß) is recognized as a central component in the pathogenesis of Alzheimer disease. While many aspects of Aß-mediated neurotoxicity remain elusive, Aß has been associated with numerous underlying pathologies, including oxidative and nitrosative stress, inflammation, metal ion imbalance, mitochondrial dysfunction, and even tau pathology. Ergothioneine (ET), a naturally occurring thiol/thione-derivative of histidine, has demonstrated antioxidant and neuroprotective properties against various oxidative and neurotoxic stressors. This study investigates ET's potential to counteract Aß-toxicity in transgenic Caenorhabditis elegans overexpressing a human Aß peptide. The accumulation of Aß in this model leads to paralysis and premature death. We show that ET dose-dependently reduces Aß-oligomerization and extends the lifespan and healthspan of the nematodes.


Subject(s)
Amyloid beta-Peptides/toxicity , Antioxidants/administration & dosage , Caenorhabditis elegans/genetics , Ergothioneine/administration & dosage , Paralysis/prevention & control , Amyloid beta-Peptides/genetics , Animals , Animals, Genetically Modified , Antioxidants/pharmacology , Caenorhabditis elegans/drug effects , Disease Models, Animal , Dose-Response Relationship, Drug , Ergothioneine/pharmacology , Humans , Oxidative Stress/drug effects , Paralysis/genetics , Treatment Outcome
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