Results 41 to 50 of about 18,529 (254)

Stress-induced reinstatement of nicotine preference requires dynorphin/kappa opioid activity in the basolateral amygdala [PDF]

open access: yes, 2016
UNLABELLED: The dynorphin (DYN)/kappa-opioid receptor (KOR) system plays a conserved role in stress-induced reinstatement of drug seeking for prototypical substances of abuse.
Bruchas, Michael R   +4 more
core   +2 more sources

CRF1-R activation of the dynorphin/kappa opioid system in the mouse basolateral amygdala mediates anxiety-like behavior.

open access: yesPLoS ONE, 2009
Stress is a complex human experience and having both rewarding and aversive motivational properties. The adverse effects of stress are well documented, yet many of underlying mechanisms remain unclear and controversial. Here we report that the anxiogenic
Michael R Bruchas   +3 more
doaj   +1 more source

Involvement of the Opioid Peptide Family in Cancer Progression

open access: yesBiomedicines, 2023
Peptides mediate cancer progression favoring the mitogenesis, migration, and invasion of tumor cells, promoting metastasis and anti-apoptotic mechanisms, and facilitating angiogenesis/lymphangiogenesis.
Manuel Lisardo Sánchez   +2 more
doaj   +1 more source

Membrane leakage induced by dynorphins

open access: yesFEBS Letters, 2006
Dynorphins, endogeneous opioid peptides, function as ligands to the opioid kappa receptors and induce non‐opioid excitotoxic effects. Here we show that big dynorphin and dynorphin A, but not dynorphin B, cause leakage effects in large unilamellar phospholipid vesicles (LUVs).
Vladana Vukojević   +3 more
openaire   +3 more sources

Functional Characterization of Spinocerebellar Ataxia Associated Dynorphin A Mutant Peptides

open access: yesBiomedicines, 2021
Mutations in the prodynorphin gene (PDYN) are associated with the development of spinocerebellar ataxia type 23 (SCA23). Pathogenic missense mutations are localized predominantly in the PDYN region coding for the dynorphin A (DynA) neuropeptide and lead ...
Andreas Lieb   +6 more
doaj   +1 more source

Estradiol treatment prevents injury induced enhancement in spinal cord dynorphin expression.

open access: yesFrontiers in Physiology, 2012
Administration of the ovarian steroid estradiol in male and female animals has been shown to have neuromodulatory and neuroprotective effects in a variety of experimental models. In the present study, spinal tissues from dermatomes just above (T5-7, at
Daya S. Gupta, Charles H. Hubscher
doaj   +1 more source

Acute Wheel-Running Increases Markers of Stress and Aversion-Related Signaling in the Basolateral Amygdala of Male Rats

open access: yesJournal of Functional Morphology and Kinesiology, 2022
Physical activity (PA) is a non-invasive, cost-effective means of reducing chronic disease. Most US citizens fail to meet PA guidelines, and individuals experiencing chronic stress are less likely to be physically active.
Kolter B. Grigsby   +5 more
doaj   +1 more source

Ester hydrolysis differentially reduces aconitine-induced anti-hypersensitivity and acute neurotoxicity: Involvement of spinal microglial dynorphin expression and implications for Aconitum processing

open access: yesFrontiers in Pharmacology, 2016
Aconitines, including bulleyaconitine A, probably the most bioactive and abundant alkaloids in Aconitum plant, are a group of diester C19-diterpenoid alkaloids with one acetylester group attached to C8 of the diterpenoid skeleton and one benzoylester ...
Teng-Fei Li, Yong-Xiang Wang, Nian Gong
doaj   +1 more source

Avian opioid peptides: evolutionary considerations, functional roles and a challenge to address critical questions

open access: yesFrontiers in Physiology, 2023
The present review considers the putative hormonal opioid peptides in birds. In birds and all other vertebrates, there are four opioid related genes encoding a series of peptides.
Krystyna Pierzchała-Koziec   +1 more
doaj   +1 more source

The Role of the Brain in the Pathogenesis and Physiology of Polycystic Ovary Syndrome (PCOS). [PDF]

open access: yes, 2019
Polycystic ovary syndrome (PCOS) is a common reproductive endocrine disorder, affecting at least 10% of women of reproductive age. PCOS is typically characterized by the presence of at least two of the three cardinal features of hyperandrogenemia (high ...
Coutinho, Eulalia A   +1 more
core   +1 more source

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