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- W258974423 abstract "Whether L-NAT, a cytochrome c release inhibitor and an antagonist of NK-1R, provides protection in ALS is not known.L-NAT delays disease onset and mortality in mSOD1(G93A) ALS mice by inhibiting mitochondrial cell death pathways, inflammation, and NK-1R downregulation.L-NAT offers protection in a mouse model of ALS.Data suggest the potential of L-NAT as a novel therapeutic strategy for ALS and provide insight into its action mechanisms. Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease characterized by progressive motor neuron loss, while inflammation has been implicated in its pathogenesis. Both inhibitors of cytochrome c release and antagonists of the neurokinin 1 receptor (NK-1R) have been reported to provide neuroprotection in ALS and/or other neurodegenerative diseases by us and other researchers. However, whether N-acetyl-L-tryptophan (L-NAT), an inhibitor of cytochrome c release and an antagonist of NK-1R, provides neuroprotection in ALS remains unknown. Here we demonstrate that the administration of L-NAT delayed disease onset, extended survival, and ameliorated deteriorations in motor performance in mSOD1(G93A) ALS transgenic mice. Our data showed that L-NAT reached the spinal cord, skeletal muscle, and brain. In addition, we demonstrate that L-NAT reduced the release of cytochrome c/smac/AIF, increased Bcl-xL levels, and inhibited the activation of caspase-3. L-NAT also ameliorated motor neuron loss and gross atrophy, and suppressed inflammation, as shown by decreased GFAP and Iba1 levels. Furthermore, we found gradually reduced NK-1R levels in the spinal cords of mSOD1(G93A) mice, while L-NAT treatment restored NK-1R levels. We propose the use of L-NAT as a potential therapeutic invention against ALS." @default.
- W258974423 created "2016-06-24" @default.
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- W258974423 date "2015-08-01" @default.
- W258974423 modified "2023-10-16" @default.
- W258974423 title "N-acetyl-l-tryptophan delays disease onset and extends survival in an amyotrophic lateral sclerosis transgenic mouse model" @default.
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- W258974423 doi "https://doi.org/10.1016/j.nbd.2015.05.002" @default.
- W258974423 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/25986728" @default.
- W258974423 hasPublicationYear "2015" @default.
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