Expression and Purification of Recombinant GHK Tripeptides Are Able to Protect against Acute Cardiotoxicity from Exposure to Waterborne Copper in Zebrafish Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms Cushing's Syndrome Endotext NCBI Bookshelf Cushing's Syndrome Endotext NCBI Bookshelf Mechanisms of Hormonal, Genetic, and Temperature Regulation of Germ Cell Proliferation, Differentiation, and Death During Spermatogenesis Hypothetical involvement of stress hormones induced reprograming of adult stem progenitor cells in tumorigenesis