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Further, animal studies indicate that it may strengthen the gut-brain axis, improving feedback between the GI tract and the central nervous system to elicit systemic effects [2, 4, 11]

2017 Dec;174(24):4725-4737

It seems that cells in/after oxygen restriction might alternatively use molecules with primary other functions such as neurotransmitters and/or alternative energy substrates

SS-31 (Elamipretide) Description: A mitochondrial-targeting peptide that protects and repairs cellular energy systems, reduces oxidative stress, and improves energy levels

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