glutathione peroxidases role in Plants: Innumerable in Abiotic Stress Tolerance and Plant Development | Journal of Plant Growth Regulation The Selenoprotein Glutathione Peroxidase 4:

Biochem Eng J 185:108541

John Buse, Director of the Diabetes Care Center at the University of North Carolina and a principal investigator in GLP-1 outcomes trials, has noted in published commentary that "the antioxidant milieu in type 2 diabetes is genuinely impaired, but whether exogenous supplementation corrects the underlying defect or simply raises circulating levels without tissue impact remains unresolved." [9] That distinction shapes the practical advice: correcting a documented deficiency (measured low whole-blood glutathione in a patient with poorly controlled diabetes) is a different clinical decision from empirically adding glutathione to a well-controlled patient already benefiting from dulaglutide's own oxidative-stress effects

I didnt see this above

5 , eaax7224 (2020)