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It's not that enkephalins or similar drugs make the rats like the chocolates more, the researchers say, but rather that the brain chemicals increase their desire and impulse to eat them.
51 Acupuncture affects the activity and plasma concentrations of vasomotor agents, including norepinephrine, angiotensin II, serotonin, enkephalins, beta-endorphins and glutamate.
Degeneration occurs in the spiny neurons enriched in gamma aminobutyric acid (GABA) and enkephalin that project to the external globus pallidus.
As adults, in times of calm or isolation, their enkephalin levels would drop, creating a relative withdrawal state with an increase in tension and dysphoria.
These nanoparticles of surface carboxylic acid groups were then covalently linked to peptides such as the syntheric tripeptide enkephalin (1-3, Tyr-Gly-Gly), via carbodiimide coupling, to form amide bonds.
Enkephalins have been defined into two naturally occurring types called methionine enkephalin and leucine enkephalin.
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.
Diamyd Medical AB has reported that the Phase II study evaluating the Company's drug candidate NP2 Enkephalin did not meet the primary objective of reducing pain in subjects with severe intractable cancer pain.
Repeated ethanol administration induces short- and long-term changes in enkephalin and dynorphin tissue concentrations in rat brain.
A multicatalytic proteinase complex from pituitary that forms enkephalin and enkephalin containing peptides.