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51 demonstrated that plants treated with Zn and K, showed an increase in SOD activity

By measuring the ratio of heavy isotope-labelled peptides in urine samples using liquid chromatography (LC)-MS in multiple reaction monitoring (MRM) mode, we observed significantly higher Ggt1 levels in the OVX rats than in the control rats (Figure 3C, peptide determination results are shown in Supplementary Tables S9)

Implication of the glutamate-cystine antiporter xCT in schizophrenia cases linked to impaired GSH synthesis

P., Sol, S., Sharpe, J

That does not mean glutathione alone is the answer, but it supports why veterinarians may consider antioxidant strategies as part of a larger plan