Results 11 to 20 of about 16,204 (223)

Opioid Receptors in Immune and Glial Cells-Implications for Pain Control [PDF]

open access: yes, 2020
Opioid receptors comprise μ (MOP), δ (DOP), κ (KOP), and nociceptin/orphanin FQ (NOP) receptors. Opioids are agonists of MOP, DOP, and KOP receptors, whereas nociceptin/orphanin FQ (N/OFQ) is an agonist of NOP receptors.
Celik, Melih Ö., Machelska, Halina
core   +1 more source

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

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   +2 more sources

Opioidergic pathways and kisspeptin in the regulation of female reproduction in mammals

open access: yesFrontiers in Neuroscience, 2022
Endogenous opioid peptides have attracted attention as critical neuropeptides in the central mechanism regulating female reproduction ever since the discovery that arcuate dynorphin neurons that coexpress kisspeptin and neurokinin B (NKB), which are also
Yoshihisa Uenoyama   +4 more
doaj   +1 more source

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

Circuit dissection of the role of somatostatin in itch and pain [PDF]

open access: yes, 2018
Stimuli that elicit itch are detected by sensory neurons that innervate the skin. This information is processed by the spinal cord; however, the way in which this occurs is still poorly understood.
AJ Christensen   +79 more
core   +1 more source

Bulleyaconitine A Inhibits Morphine-Induced Withdrawal Symptoms, Conditioned Place Preference, and Locomotor Sensitization Via Microglial Dynorphin A Expression

open access: yesFrontiers in Pharmacology, 2021
Bulleyaconitine A (BAA), a C19-diterpenoid alkaloid, has been prescribed as a nonnarcotic analgesic to treat chronic pain over four decades in China. The present study investigated its inhibition in morphine-induced withdrawal symptoms, conditioned place
Meng-Jing Zhao   +4 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

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

Morphological evidence for enhanced kisspeptin and neurokinin B signaling in the infundibular nucleus of the aging man. [PDF]

open access: yes, 2012
Peptidergic neurons synthesizing kisspeptin (KP) and neurokinin B (NKB) in the hypothalamic infundibular nucleus have been implicated in negative sex steroid feedback to GnRH neurons. In laboratory rodents, testosterone decreases KP and NKB expression in
Bloom, Stephen R.   +11 more
core   +1 more source

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