Results 31 to 40 of about 339 (135)

High-frequency stimulation-induced peptide release synchronizes arcuate kisspeptin neurons and excites GnRH neurons

open access: yeseLife, 2016
Kisspeptin (Kiss1) and neurokinin B (NKB) neurocircuits are essential for pubertal development and fertility. Kisspeptin neurons in the hypothalamic arcuate nucleus (Kiss1ARH) co-express Kiss1, NKB, dynorphin and glutamate and are postulated to provide ...
Jian Qiu   +6 more
doaj   +1 more source

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

Cocaine Reduces the Neuronal Population While Upregulating Dopamine D2-Receptor-Expressing Neurons in Brain Reward Regions: Sex-Effects

open access: yesFrontiers in Pharmacology, 2021
Addiction to cocaine is associated with dysfunction of the dopamine mesocortical system including impaired dopamine-2 receptor (D2r) signaling. However, the effects of chronic cocaine on neuronal adaptations in this system have not been systematically ...
Kevin Clare   +7 more
doaj   +1 more source

The role of BDNF/TrkB signaling in acute amphetamine-induced locomotor activity and opioid peptide gene expression in the rat dorsal striatum

open access: yesFrontiers in Systems Neuroscience, 2011
Exposure to psychostimulants increases brain-derived neurotrophic factor (BDNF) mRNA and protein levels in the cerebral cortex and subcortical structures.
Jacqueline F McGinty   +3 more
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

Dynorphin and the pathophysiology of drug addiction [PDF]

open access: yesPharmacology & Therapeutics, 2007
Drug addiction is a chronic relapsing disease in which drug administration becomes the primary stimulus that drives behavior regardless of the adverse consequence that may ensue. As drug use becomes more compulsive, motivation for natural rewards that normally drive behavior decreases. The discontinuation of drug use is associated with somatic signs of
T S, Shippenberg, A, Zapata, V I, Chefer
openaire   +2 more sources

Endogenous dynorphin protects against neurotoxin-elicited nigrostriatal dopaminergic neuron damage and motor deficits in mice

open access: yesJournal of Neuroinflammation, 2012
Background The striato-nigral projecting pathway contains the highest concentrations of dynorphin in the brain. The functional role of this opioid peptide in the regulation of mesencephalic dopaminergic (DAergic) neurons is not clear.
Wang Qingshan   +8 more
doaj   +1 more source

Advent of NK3R Antagonists for the Treatment of Menopausal Hot Flushes: A Narrative Review

open access: yesBJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT The menopause transition is marked by symptoms predominantly attributed to declining oestrogen levels. Approximately 80% of women experience associated symptoms, and 25% experience severe symptoms. The commonest are vasomotor symptoms (VMS), collectively referring to hot flushes and/or night sweats.
Aaran H. Patel   +5 more
wiley   +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

Pathobiology of dynorphins in trauma and disease [PDF]

open access: yesFrontiers in Bioscience, 2005
Dynorphins, endogenous opioid neuropeptides derived from the prodynorphin gene, are involved in a variety of normative physiologic functions including antinociception and neuroendocrine signaling, and may be protective to neurons and oligodendroglia via their opioid receptor-mediated effects. However, under experimental or pathophysiological conditions
Kurt F, Hauser   +12 more
openaire   +2 more sources

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