To help clarify this matter, we recently conducted a randomized, placebo-controlled, double blinded clinical trial of oral GSH supplementation
Homocysteine in neurology: A possible contributing factor to small vessel disease
Figure 1 summarizes the overall mechanism of action of GLP-1 RAs
Supplementation with L-cysteine has been shown to not only increase glutathione levels, but to also upregulate the expression of vitamin D binding proteins, receptors, and enzymes that results in increased vitamin D levels
465,466,467 Moreover, addiction build-up seems to be linked to astrocytic NMDA receptors, such that deletion of the NR2C subunit specifically from astrocytes potentiated extinction of cocaine preference memory