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Neuropeptide
Pronunciation
Definition 1
A member of a class of protein-like molecules made in the brain. Neuropeptides consist of short chains of amino acids, with some functioning as neurotransmitters and some functioning as hormones. (NCI Dictionary)
Definition 2
Peptides with direct synaptic effects or indirect modulatory effects on the nervous system. A neuropeptide is a molecule released by neurons as an intercellular neurotransmitter. Alternatively, neuropeptides can be released by non-neuronal cells as hormones. They are endogenous peptides such as endorphins that influence neural activity or functioning. (NCI Thesaurus)
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