enkephalin

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Related to Enkephalins: encephalitis, Endorphins, somatostatin, substance P

enkephalin

(ĕnkĕf`əlĭn), one of several naturally occurring morphinelike substances (endorphinsendorphins
, 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 the nervous
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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.
References in periodicals archive ?
It seems likely that our enkephalin findings in rats mean that this neurotransmitter may drive some forms of overconsumption and addiction in people.
Activation of the pain control system increases the concentration of beta endorphin, enkephalin, serotonin and norepinephrine levels in the brain tissue and plasma, thus creating an analgesic effect, as well as many others.
The sympathetic system remains active, making that BP levels not to decrease and to generate a greater release of enkephalins that could reduce the pain perception.
The main groups of opioid peptides, enkephalins, dynorphins and beta-endorphin, are derived from proenkephalin, prodynorphin and proopiomelanocortin, respectively (20).
The action of enkephalins and endorphins on pain receptors is the body's intrinsic pain-suppressing system; it is the activity of these two hormones that makes the body feel good after jogging, sex, or an acupuncture treatment.
Exorphin means endorphins and enkephalins that come from outside the body (exogenous).
Ischemic preconditioning increases the bioavailability of cardiac enkephalins.
Endorphins and enkephalins also bind to the mu receptor.
increased ER-beta (Oliveri, 1998), ER-alpha (Ogawa, 1999), dysfunctional amagdyla (Szczpka, 1998) (Wilson, 2001), stress induced damage to frontal lobes (Royalty, 1990) (Wilson, 2001), low COMT (Goldberg, 1995) (Largerspetz, 1999), low enkephalins (Lachman, 1998) low cortisol (Decaire, 1999), substance P (DeFlipe, 1998) and P-choloramphetamine (Gianutos, 1975).
He theorizes that in responding to the placebo, the patient's body produces its own pain-relieving chemicals called endorphins and enkephalins that mimic morphine.
Positive emotions like happiness produce natural substances within the body, called endorphins and enkephalins.