Protein responsive gut hormone tachykinin directs food choice and impacts lifespan Nature Metabolism Design mechanisms and biomedical applications of peptide metal chelates in antimicrobial therapy, tumor theranostics, and integrated diagnosis treatment systems ScienceDirect Research chemicals known as peptides, many of them banned by the World Anti Doping Agency and some not approved for human use in the United States, are available with the simple click of Metal dependent hormone function: the emerging interdisciplinary field of metalloendocrinology Metallomics (RSC Publishing) DOI:10.1039 C8MT00221E