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encephalin
(redirected from enkephalin)

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encephalin

Naturally occurring chemical produced by nerve cells in the brain that has the same effect as morphine or other derivatives of opium, acting as a natural painkiller. Unlike morphine, encephalins are quickly degraded by the body, so there is no build-up of tolerance to them, and hence no addiction. Encephalins are a variety of peptides, as are endorphins, which have similar effects.



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? Mentioned in ? References in periodicals archive
 
Nicholas Bodor and his colleagues at the University of Florida in Gainesville sandwiched a naturally occurring pain-relief protein called enkephalin between a fatty acid and a molecule that becomes positively charged in the presence of enzymes found in the brain.
Sneaking drugs past the brain's barrier by Science News
Indeed, endorphin and enkephalin production is stimulated by exercise.
Ottawa panel evidence-based clinical practice guidelines for ... by Physical Therapy
According to Isabel Karle, the largest molecule so far analyzed by the direct method is the nervous system peptide, enkephalin, which consists of five amino acids and contains 230 carbon, nitrogen and oxygen atoms.
Chemistry for molecular structure by Miller, Julie Ann / Science News
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