Within the selenoprotein family, GPX4 has garnered significant attention due to its pivotal role in catalyzing the reduction of hydrogen peroxide and lipid peroxides, thereby maintaining cellular redox homeostasis (167)
The complementary roles of each peptide become easier to understand when viewed side by side
Nitric oxide regulates transcription factors or disperses in blood by binding with the heme portion of cytochrome c oxidase in mitochondria
Zinc modulates the glutamatergic circuit by functioning as an N-Methyl-d-Aspartate (NMDA) receptor antagonist and enhancer of -amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor activity
Specifically, adding 5-amino-1mq (30 M and above) to C2C12 myoblast cultures (a common in vitro myoblast model) markedly upregulates the expression of myogenic marker genes, including myosin heavy chain (MyHC), actin, and myogenin (MyoG)
GPX4 is a lipid peroxide enzyme that is dependent on reduced glutathione (GSH) and selenium