Intermediate Cu(II) Thiolate Species in the Reduction of Cu(II)GHK by Glutathione: A Handy Chelate for Biological Cu(II) Reduction Inorganic Chemistry Not too big. Not too small. Because of their intermediate size, macrocyclic peptides combine the potency and precise targeting of an antibody or biologic therapy with the stability and ease of administration of a The potential of GHK as an anti aging peptide Dou Aging Pathobiology and Therapeutics 16. Receptor Regulation Principles of Pharmacology Study Guide Tachyphylaxis and Tolerance: Biomathematics of Rate Sensitivity biomathematicsblog Attenuation of Response to Repeated Drug Administration: A Proposal for Differentiating Tachyphylaxis and Tolerance The Journal of Pharmacology and Experimental Therapeutics