Peptide diagnostic markers for human disorders

摘要

The present invention broadly relates to human disorders including, but not limited to, metabolic and nutritional disorders, gastrointestinal disorders, central nervous system disorders, and autoimmunity or reduced immunity disorders. The present invention more specifically relates to diagnostic markers comprising isolated peptides originally found in human tissue and body fluids and derivatives thereof. These peptides have been found to consistently exhibit opiate-like activity and/or are derivatives of peptides that exhibit opiate-like activity.