Results 41 to 50 of about 16,897 (225)

Identification of dynorphin a from zebrafish: A comparative study with mammalian dynorphin A

open access: yesNeuroscience, 2007
We report the cloning and molecular characterization of the zfPDYN. The complete open reading frame for this propeptide is comprised in two exons that are localized on chromosome 23. zfPDYN cDNA codes for a polypeptide of 252 amino acids that contains the consensus sequences for four opioid peptides: an Ile-enkephalin, the neo-endorphins, dynorphin A ...
González-Nuñez, V.   +4 more
openaire   +3 more sources

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

A role for transcriptional repressor methyl-CpG-binding protein 2 and plasticity-related gene serum- and glucocorticoid-inducible kinase 1 in the induction of inflammatory pain states [PDF]

open access: yes, 2007
Activity-dependent changes in neurons of the rat superficial dorsal horn are crucial for the induction and maintenance of neuropathic and inflammatory pain states.
Geranton, SM   +2 more
core   +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

The Isolated Thumb Domain of Acid‐Sensing Ion Channels Forms a Minimal Folding Unit Enabling Ligand Binding Studies

open access: yesAngewandte Chemie, Volume 138, Issue 19, 4 May 2026.
An independently folded thumb domain from acid‐sensing ion channels (ASICs) preserves ligand‐binding and proton‐sensing properties. NMR‐based interaction and pKa analyses uncover how endogenous and exogenous peptides modulate ASICs, providing a simplified model for rational drug discovery targeting proton‐gated ion channels.
Biswa P. Mishra   +14 more
wiley   +2 more sources

Increased bradykinesia in Parkinson’s disease with increased movement complexity: elbow flexion-extension movements [PDF]

open access: yes, 2008
The present research investigates factors contributing to bradykinesia in the control of simple and complex voluntary limb movement in Parkinson’s disease (PD) patients.
Geelen, J.A.G.   +3 more
core   +4 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

Isolation and amino acid sequence analysis of a 4,000-dalton dynorphin from porcine pituitary [PDF]

open access: yes, 1982
A 4,000-dalton dynorphin was isolated from porcine pituitary. It has 32 amino acids (Mr = 3,986), with the previously described heptadecapeptide (now called dynorphin A) at its amino terminus and a related tridecapeptide, dynorphin B, at its carboxyl ...
Fischli, Walter   +3 more
core  

Substance P regulates puberty onset and fertility in the female mouse [PDF]

open access: yes, 2015
Puberty is a tightly regulated process that leads to reproductive capacity. Kiss1 neurons are crucial in this process by stimulating GnRH, yet how Kiss1 neurons are regulated remains unknown. Substance P (SP), an important neuropeptide in pain perception,
Carroll, R.S.   +7 more
core   +1 more source

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