different between enkephalin vs metenkephalin

English

From Ancient Greek ????????? (enképhalos, “brain”) +? -in.

enkephalin (plural enkephalins)

(biochemistry) Any of a group of pentapeptide endorphins that have opiate-like effects
- 1996, David Foster Wallace, Infinite Jest, Abacus 2013, p. 67:
  Some of the more marginal players start in as early as maybe twelve, I'm sorry to say, particularly 'drines before matches and then enkephaline after […]

Met +? enkephalin

metenkephalin (uncountable)

(biochemistry) An endogenous opioid peptide neurotransmitter found naturally in many parts of the animal and human body; one of the two forms of enkephalin (the other being leuenkephalin)

Send