glutathione peroxidases brigelius Peroxidase 2 - an overview Measurement of superoxide dismutase, catalase

This is why the liver depends heavily on glutathioneits primary defense system

and D.J.-L

Methionine serves as the primary supplier of methyl radicals in the body, delivered in the form of S-adenosylmethionine (SAM), which is subsequently transformed into S-adenosylhomocysteine (SAH)

Once inside the cells, iron is released from transferrin in acidic endosomes and then distributed into the labile iron pool (LIP), readily participating in critical cellular functions or being stored in ferritin (42,43)

The redox status-dependent regulatory processes involve the reversible formation of disulfide bonds between the thiol groups of two cysteine (Cys) residues, within a given protein, between different proteins, or between a Cys and glutathione or sulfides

AECs thereby play critical roles in mucosal immunity by serving as the first physiological and immunological barriers of the lung