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Interestingly, Paus also hypothesized the role of other neuroendocrine hormones in the prevention of hair graying, including melatonin, -endorphin, and -melanocyte stimulating hormone (-MSH)
These alterations in protein expression could potentially be ascribed to the intricate regulatory network of the NRF2/KEAP1 complex: Under homeostatic conditions, NRF2 is continuously ubiquitinated and targeted for 26S proteasomal degradation by its negative regulator KEAP1
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Evidence Assessment for the Degradation Claim The scientific claim that mixing these peptides causes degradation due to pH incompatibility fails to meet evidentiary standards for several reasons: Structural incompatibility with the mechanism: The postulated copper-catalyzed oxidation pathway requires methionine or cysteine residues in the target peptides
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