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enkephalin

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enkephalin (ĕnkĕf`əlĭn), one of several naturally occurring morphinelike substances (endorphins endorphins , neurotransmitters found in the brain that have pain-relieving properties similar to morphine. There are three major types of endorphins: beta endorpins, found primarily in the pituitary gland; and enkephalins and dynorphin, both distributed throughout
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) released from nerve endings of the central nervous system and the adrenal medulla. They act as analgesics and sedatives in the body and appear to affect mood and motivation.
enkephalin [en′kef·ə·lən]
(biochemistry)
A mixture of two polypeptides isolated from the brain; central mode of action is an inhibition of neurotransmitter release.


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Tears include a powerful hormone, leucine enkephalin, which regulates pain and other hormones which regulate stress.
Tears include a powerful hormone, leucine enkephalin, which regulates pain and other hormones which regulate stress.
Interestingly, while there is an increase in endorphin and enkephalin proteins in adults, there is also a big decrease in the availability of mu and delta opioid receptors, which are necessary in order for pain medications, such as morphine, to work.
 
 
 
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