Protein Information

Name dynorphin
Synonyms Beta neoendorphin; Beta neoendorphin dynorphin; Beta neoendorphin dynorphin precursor; Dynorphin; Enkephalin B; Leu enkephalin; Leumorphin; PDYN…

Compound Information

Name nicotine
CAS

Reference List

PubMed Abstract RScore(About this table)
19806344 McCarthy MJ, Zhang H, Neff NH, Hadjiconstantinou M: Nicotine withdrawal and kappa-opioid receptors. . Psychopharmacology. 2009 Oct 6.

RATIONALE: The synthesis and release of dynorphin are increased in the caudate/putamen (CPU) and nucleus accumbens (NAc) of nicotine-withdrawn mice, suggesting a role in the nicotine abstinence syndrome.
31(0,1,1,1) Details
20170672 Berrendero F, Robledo P, Trigo JM, Martin-Garcia E, Maldonado R: Neurobiological mechanisms involved in nicotine dependence and reward: Participation of the endogenous opioid system. Neurosci Biobehav Rev. 2010 Feb 16.

Thus, endogenous enkephalins and beta-endorphins acting on mu-opioid receptors are involved in nicotine-rewarding effects, whereas opioid peptides derived from prodynorphin participate in nicotine aversive responses.
6(0,0,1,1) Details
19804796 Bruijnzeel AW: kappa-Opioid receptor signaling and brain reward function. . Brain Res Rev. 2009 Dec 11;62(1):127-46. Epub 2009 Oct 2.

This might explain that in some studies kappa-opioid receptor agonists attenuate nicotine and opioid withdrawal symptomatology.
The dynorphin-like peptides have profound effects on the state of the brain reward system and human and animal behavior.
5(0,0,0,5) Details