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GHK is short for glycyl-L-histidyl-L-lysine, a copper-carrying molecule made up of three amino acids strung together with a strong grip on copper
Grumet et al., 2016
Using gene-edited mice with humanised GLP-1 receptors, the team found that oral small-molecule GLP-1 drugs activated the central amygdala, a region associated with desire and reward that sits deeper in the brain than the hypothalamic and hindbrain networks where injectable peptide GLP-1s have been shown to act
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