Yangonin Three urinary metabolites, x -hydroxy-5,6-dehydrokawain, dihydroxy-5,6-dehydro-7,8-dihydrokawain, and p -hydroxy-5,6-dehydrokawain, were identified in the urine, of which p -hydroxy-5,6-dehydrokawain was predominant (Figure 4) (20)
Although most individuals synthesize sufficient GSH to maintain a redox balance, this is not the case in patients with PD or other neurodegenerative diseases, which has been demonstrated to be associated with GSH consumption (11)
Conclusions Glutathione plays an important role in antioxidant defense and in the regulation of the pathways necessary for cellular homeostasis, not only as a detoxifier of endogenous and exogenous compounds, but also through its participation in processes related to the modulation of the synthesis of DNA, gene expression, cell proliferation, apoptosis, S-glutathionylation of proteins, signal transduction, regulation of the immune system and metabolism of cellular compounds, among others
In the present study, because of the limits set by the pH tolerance and buffer sensitivity of D
H 2 S stock solutions ( 100 mM) were prepared fresh daily from Na 2 S.9H 2 O, as described (Nagy et al., 2014)
& Schmidt, H
