The mitochondria normally have a good defense mechanism against H 2 O 2 , which involves the oxidation of glutathione by glutathione peroxidase and its subsequent reduction by glutathione reductase
Serine is a precursor of glycine and cysteine and is involved in methionine and folic acid metabolism, amino acid transportation, DNA/histone methylation and redox balance
Nature 407 : 390395 Shen ZX, Chen GQ, Ni JH, Li XS, Xiong SM, Qiu QY, Zhu J, Tang W, Sun GL, Yang KQ, Chen Y, Zhou L, Fang ZW, Wang YT, Ma J, Zhang P, Zhang TD, Chen SJ, Chen Z and Wang ZY (1997) Use of arsenic trioxide (As2O3) in the treatment of acute promyelocytic leukemia (APL): II
An Explanation of the Aging Process If youre over 40 and experiencing skin changes, low energy, metabolic shifts, slower recovery, or reduced focus, theres a biological explanation beyond mere chronology