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(2016) This clinical trial moved from the laboratory to real patients, testing GHK-peptide combined with 5-ALA on human volunteers

Journal of Physiology, Paris, 97 (23), 221226

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Among the more potent compounds were the racemic pyridine derivative 37 (HFI-419), and the quinoline derivatives 38 (HFI-435) and 39 (HFI-437) exhibiting K i values of 420, 360, and 20 nM, respectively (Figure 9)