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Copper is a required cofactor for enzymes involved in connective-tissue crosslinking, angiogenesis, and antioxidant defense, and GHK appears to function partly as a copper-delivery vehicle that makes the metal bioavailable to cells in a controlled way
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10.1002/jbmr.1954 131 YamadaM.KojimaN.AttW.MinamikawaH.SakuraiK.OgawaT
Clinical evidence indicates that levels of plasma Fetuin-A positively correlate with Mini-Mental State Examination (MMSE) scores [128]
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