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Comprehensive review of GHK-Cu mechanisms: copper delivery, anti-inflammatory effects, tissue repair View Source

& Needham, L

Fe 2+ formed by intestinal absorption or erythrocyte degradation can be oxidized by copper cyanide to Fe 3+ , which binds to transferrin on the cell membrane and is further transported into the cell via transferrin receptor 1 (TFR1) [39]

Pharmacokinetics and pharmacodynamics of growth hormone-releasing peptide-2: a phase I study in children

doi: 10.3389/fimmu.2026.1753617 Received 25 November 2025 Revised 28 December 2025 Accepted 02 January 2026 Published 21 January 2026 Volume 17 - 2026 Edited by Leandro J