Both GSSG and GSSR can be catalytically reduced back to GSH by the NADPH-dependent GSH reductase and thioredoxin (Trx)/glutaredoxin (Grx) system, respectively
Another trial found glutathione to be supportive of immunity by its ability to modulate NK and T-cells responsible as front-line defenders, protecting against microbial infections
Neagu N, Conforti C, Agozzino M, Marangi GF, Morariu SH, Pellacani G, Persichetti P, Piccolo D, Segreto F, Zalaudek I, Dianzani C
In cats, a small study looking at clinical enteropathy cases showed resolution of hypocobalaminemia in all cases with oral supplementation of 0.125-0.25mg once daily for 28-94d (Toresson et al, ECVIM 2015 poster abstract)
A case of anaphylactic shock, involving a patient who received an intravenous bolus of tranexamic acid, has also been reported in the literature