Results 21 to 30 of about 4,556 (199)

Evolution of Proenkephalin and Prodynorphin [PDF]

open access: yesAmerican Zoologist, 1986
SYNOPSIS. Since the discovery of the enkephalins in 1975, three separate families of opioid peptides have been identified, proopiomelanocortin, proenkephalin, and prodynorphin. The lattertwo have multiple copies of the enkephalin sequence in larger enkephalin containing polypeptides (ECPs).
RANDOLPH V. LEWIS, BRUCE W. ERICKSON
openaire   +1 more source

Effect of PDYN rs2281285, rs2235749 and rs910080 gene polymorphisms on the intensity of depression symptoms and negative craving in heroin addicts [PDF]

open access: yesArchives of Biological Sciences, 2021
The present study was undertaken to explore whether prodynorphin (PDYN) polymorphisms have an effect on the intensity of depressive symptoms and negative craving in heroin addicts in a sample of 100 heroin addicts and 108 controls.
Kaya-Akyüzlü Dilek   +3 more
doaj   +1 more source

RETRACTED: Alcohol drinking alters stress response to predator odor via BNST kappa opioid receptor signaling in male mice

open access: yeseLife, 2020
Maladaptive responses to stress are a hallmark of alcohol use disorder, but the mechanisms that underlie this are not well characterized. Here, we show that kappa opioid receptor signaling in the bed nucleus of the stria terminalis (BNST) is a critical ...
Lara S Hwa   +11 more
doaj   +1 more source

Molecular mechanisms underlying increased PDYN and dynorphin expression in the prefrontal cortex of alcoholic men [PDF]

open access: yes, 2011
Alcohol dependence is a chronic relapsing disorder caused by drug x gene x environment interactions for which pharmacotherapy is but moderately effective.
Henriksson, Richard
core   +1 more source

Opioid precursor protein isoform is targeted to the cell nuclei in the human brain [PDF]

open access: yes, 2017
Background: Neuropeptide precursors are traditionally viewed as proteins giving rise to small neuropeptide molecules. Prodynorphin (PDYN) is the precursor protein to dynorphins, endogenous ligands for the kappa-opioid receptor.
Alkass, Kanar   +15 more
core   +2 more sources

Striatal fosB Expression Is Causally Linked with l-DOPA-Induced Abnormal Involuntary Movements and the Associated Upregulation of Striatal Prodynorphin mRNA in a Rat Model of Parkinson's Disease

open access: yesNeurobiology of Disease, 1999
Rats with unilateral dopamine-denervating lesions sustained a 3-week treatment with a daily l-DOPA dose that is in the therapeutic range for Parkinson's disease.
M. Andersson, A. Hilbertson, M.A. Cenci
doaj   +1 more source

Ancient and recent positive selection transformed opioid cis-regulation in humans.

open access: yesPLoS Biology, 2005
Changes in the cis-regulation of neural genes likely contributed to the evolution of our species' unique attributes, but evidence of a role for natural selection has been lacking.
Matthew V Rockman   +5 more
doaj   +2 more sources

Preserving Neuronal Chemical Messengers: Heat Stabilization Versus Snap Freezing for Improved MALDI Mass Spectrometry Imaging of Brain Tissues. [PDF]

open access: yesJ Neurochem
Rapid heat stabilization of brain tissue preserves the natural levels and spatial distribution of neurotransmitters and neuropeptides better than traditional snap freezing. Using matrix‐assisted laser desorption/ionization mass spectrometry imaging (MALDI‐MSI), we show that heat stabilization effectively prevents postmortem enzymatic degradation ...
Salviati E   +7 more
europepmc   +2 more sources

Regulation of striatonigral prodynorphin peptides by dopaminergic agents [PDF]

open access: yesBrain Research, 1990
The primary purpose of this study was to examine the regulation of prodynorphin peptides by dopaminergic agents in the central nervous system. The indirectly acting catecholamine agonist D-amphetamine sulfate (AMPH) and the dopamine receptor antagonist haloperidol (HAL) were administered to rats across a variety of treatment schedules and drug doses ...
Trujillo, Keith A.   +2 more
openaire   +3 more sources

Influence of sex and genetic background on anxiety-related and stress-induced behaviour of prodynorphin-deficient mice. [PDF]

open access: yesPLoS ONE, 2012
The role of dynorphin/kappa opioid receptors in epilepsy and addiction are well accepted, but their function in emotional control is not yet fully understood.
Iris Kastenberger   +3 more
doaj   +1 more source

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