Reik, 2007)
References 1 KumarVLincolnGATortoneseDJ
R2 R3 hexanoyl Tyr He pb heptanoyl Tyr He Pb pentanoyl Tyr He pb butanoyl Tyr He pb propanoyl Tyr He pb acetanoyl Tyr He pb benzoyl Tyr He pb hexanoyl Tyr lie tyrosine and isoleucine at R2 and R 3 , respectively a wide range of amino acid and other residues might be used for the mimetics or agonists (Family 1 and Families 2- 5, respectively) in the practice of embodiments of the invention at these other positions including, without limitation, tyrosine, cysteine, methionine, phenylalaine, aspartic acid, glutamic acid, histidine, tryptophan, lysine, leucine, valine, homocysteine, homoserine, and homophenyalanine
But they work through entirely separate receptor systems, activating different neural pathways and producing complementary effects when combined
Of course any adverse event can be a flag, said another former FDA official who worked in the compounding division when the peptides were categorized as unsafe