Results 11 to 20 of about 18,857 (274)

Drug-Related Engrams and Their Role in the Persistence and Recurrence of Drug-Related Behaviors. [PDF]

open access: yesHippocampus
ABSTRACT Memory is a cornerstone of human behavior, and addiction offers a compelling model of its persistence and plasticity. The scope of engram research has rapidly expanded to include addiction‐related phenomena. Addiction‐related memories, like strong aversive memories, are often highly resistant to extinction and can continue to drive relapse ...
Cutler M, Thati A, Grella SL.
europepmc   +2 more sources

Compartment-specific opioid receptor signaling is selectively modulated by different dynorphin peptides

open access: yeseLife, 2021
Many signal transduction systems have an apparent redundancy built into them, where multiple physiological agonists activate the same receptors. Whether this is true redundancy, or whether this provides an as-yet unrecognized specificity in downstream ...
Jennifer M Kunselman   +4 more
doaj   +1 more source

Kisspeptin, Neurokinin B, and Dynorphin Expression during Pubertal Development in Female Sheep

open access: yesBiology, 2021
The neural mechanisms underlying increases in gonadotropin-releasing hormone (GnRH) and luteinizing hormone (LH) secretion that drive puberty onset are unknown.
Eliana G. Aerts   +6 more
doaj   +1 more source

SEQUENCE ANALYSIS SUGGESTS POSITIVE SELECTION ON THE BOVINE PRODYNORPHIN GENE [PDF]

open access: yesBAG. Journal of Basic and Applied Genetics, 2020
Dynorphin A is an endogenous opioid peptide that is part of the KNDy system in the hypothalamus of mammals. This peptide acts as an inhibitor of the GnRH pulse generation, thus regulating the onset of puberty and reproductive cycles.
Suqueli García M.F.   +2 more
doaj   +1 more source

Dynorphin, stress, and depression [PDF]

open access: yesBrain Research, 2010
Stress is most often associated with aversive states. It rapidly induces the release of hormones and neuropeptides including dynorphin, which activates kappa opioid receptors (KORs) in the central and peripheral nervous systems. In animal models, many aversive effects of stress are mimicked or exacerbated by stimulation of KORs in limbic brain regions.
Allison T. Knoll, William A. Carlezon
openaire   +3 more sources

Dynorphin activation of kappa opioid receptor promotes microglial polarization toward M2 phenotype via TLR4/NF-κB pathway

open access: yesCell & Bioscience, 2020
Background Microglia-mediated neuroinflammation is associated with epilepsy. Switching microglial polarization from the pro-inflammatory M1 phenotype to the anti-inflammatory M2 phenotype represents a novel therapeutic strategy for mitigating ...
Lin Liu   +5 more
doaj   +1 more source

Distribution and regulation of gonadotropin-releasing hormone, kisspeptin, RF-amide related peptide-3, and dynorphin in the bovine hypothalamus [PDF]

open access: yesPeerJ, 2016
Recent work has led to the hypothesis that kisspeptin/neurokinin B/dynorphin (KNDy) neurons in the arcuate nucleus (ARC) play a key role in gonadotropin-releasing hormone (GnRH) pulse generation and gonadal steroid feedback, with kisspeptin driving GnRH ...
Valeria M. Tanco   +5 more
doaj   +2 more sources

Human Mas-related G protein-coupled receptors-X1 induce chemokine receptor 2 expression in rat dorsal root ganglia neurons and release of chemokine ligand 2 from the human LAD-2 mast cell line [PDF]

open access: yes, 2013
Primate-specific Mas-related G protein-coupled receptors-X1 (MRGPR-X1) are highly enriched in dorsal root ganglia (DRG) neurons and induce acute pain. Herein, we analyzed effects of MRGPR-X1 on serum response factors (SRF) or nuclear factors of activated
A Breit   +73 more
core   +5 more sources

Viral risk factor for seizures: Pathobiology of dynorphin in herpes simplex viral (HSV-1) seizures in an animal model

open access: yesNeurobiology of Disease, 2006
Up to 89% of patients with herpes simplex virus type-1 (HSV-1) encephalitis can have seizures. Possibly, viruses are environmental triggers for seizures in genetically vulnerable individuals. Inherited dynorphin promoter polymorphisms are associated with
Marylou V. Solbrig   +3 more
doaj   +1 more source

A quantitative study of neurochemically-defined populations of inhibitory interneurons in the superficial dorsal horn of the mouse spinal cord [PDF]

open access: yes, 2017
Around a quarter of neurons in laminae I-II of the dorsal horn are inhibitory interneurons. These play an important role in modulating somatosensory information, including that perceived as pain or itch.
Boyle, Kieran A.   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy