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Chen, Z., Li, M., Wu, C., Su, Y., Feng, S., Deng, Q., et al

Astaxanthin bioactivity is determined by stereoisomer composition and extraction method

Interactions between cationic peptides and negatively charged oligonucleotides can enhance toxicity, affect pharmacokinetic and pharmacological properties, and limit the efficacy of these therapies

The gamma-glutamyl cycle should be considered not as a mechanism for amino acid transport but rather a generator of extracellular signals, gamma-glutamyl amino acids, that are converted intracellularly to 5-oxoproline, which activates uptake and/or metabolism of amino acids ( - glutamyl amino acids or oxoproline could be signaling molecules to activate the transport of amino acids through membranes