Notably, 50% of measured NADP + in frozen blood originated from NADPH, allowing for extrapolation of NADPH and NADP + levels before freezing, if fresh sample analysis is not feasible
Branched-chain amino acids
It protects against cataracts by (a) reacting directly with ROO and O 2 radicals and singlet oxygen, preventing photoperoxidation of lens lipids, and stabilizing lens cell membranes [136, 137] and (b) enhancing GSH recycling, thereby maintaining reduced GSH levels in the lens and aqueous humor
Collagen and glycine: The modern diet is chronically deficient in glycine, an amino acid essential for collagen synthesis
IGF-1 LR3 (Insulin-like Growth Factor 1 Long R3) is an 83-amino-acid synthetic variant of human IGF-1, engineered with two key structural modifications: a glutamic acid substitution for arginine at position 3 (R3) and a 13-amino-acid N-terminal extension peptide