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Abbreviation for S-adenosyl-l-methionine.
A compound that is synthesized naturally in the central nervous system when folate and vitamin B12 levels are adequate. It is involved in the methylation of neurotransmitters, amino acids, proteins, phospholipids, and other neurochemicals. The chemical is used as a treatment for depression, liver disease, and osteoarthritis. It is an active sulfonium form of methionine that acts as a methyl group donor in various reactions (such as the formation of epinephrine or creatine).
n See S-adenosylmethionine.