is glutathione an antioxidant Glutathione: a very efficient antioxidant. Abbreviation: GSSG, Glutathione Is An Antioxidant -

The study posits that DSIP's actions on substance P, beta-endorphin, and corticosterone levels are part of a broader spectrum of biochemical changes, hinting that DSIP might initiate a series of molecular reactions contributing to its stress-modulatory actions

B., Martellotto G

The dependence of tyrosine hydroxylase on BH 4 necessitates the coupling to the action of dihydropteridine reductase (encoded by the QDPR gene: quinoid dihydropteridine reductase) as is the situation for tryptophan hydroxylase (see below) and phenylalanine hydroxylase

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51 JandricI.VrcicH.Jandric BalenM.KolencD.BrcicL.RadicB.et al (2013)