Variations in critical morphine biosynthesis genes and their potential to influence human health. Mantione K, Kream R, Stefano G. Journal Article 2010; 31(1): 11-18 PubMed PMID: 20150871 Keywords: Cannabinoid Receptor Modulators:biosynthesis, Catechol O-Methyltransferase:genetics, Cytochrome P-450 CYP2D6:genetics, Enzymes:genetics, Genetic Predisposition to Disease, Health, Humans, Mental Disorders:genetics, Metabolic Networks and Pathways:genetics. Citation : Endogenous morphine has been detected in human tissues from the vascular, immune and nervous systems. The genes/enzymes (CYP2D6, COMT an..... Read abstract Full text PDF