Journal of Neuroscience Research JNR Neuroscience Journal Wiley Online Library Acquired Glucocorticoid Resistance Due to Homologous Glucocorticoid Receptor Downregulation: A Modern Look at an Age Old Problem Mechanisms of differential desensitization of metabotropic glutamate receptors: Cell Reports Acquired Glucocorticoid Resistance Due to Homologous Glucocorticoid Receptor Downregulation: A Modern Look at an Age Old Problem 16. Receptor Regulation Principles of Pharmacology Study Guide Everyone talks about the glow from GHK Cu, Nobody talks about the burn., Yes, GHK Cu gets hyped for tighter looking skin, scar support, collagen support, and regeneration., And the reason people talk