Attenuation of Response to Repeated Drug Administration: A Proposal for Differentiating Tachyphylaxis and Tolerance The Journal of Pharmacology and Experimental Therapeutics Functional dynamics of G protein coupled receptors reveal new routes for drug discovery Nature Reviews Drug Discovery Frontiers Glycine Histidine Lysine (GHK) Alleviates Astrocytes Injury of Intracerebral Hemorrhage via the Akt miR 146a 3p AQP4 Pathway Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms New Biotinylated GHK and Related Copper(II) Complex: Antioxidant and Antiglycant Properties In Vitro against Neurodegenerative Disorders