Results 51 to 60 of about 339 (135)

Role of KNDy Neurons Expressing Kisspeptin, Neurokinin B, and Dynorphin A as a GnRH Pulse Generator Controlling Mammalian Reproduction

open access: yesFrontiers in Endocrinology, 2021
Increasing evidence accumulated during the past two decades has demonstrated that the then-novel kisspeptin, which was discovered in 2001, the known neuropeptides neurokinin B and dynorphin A, which were discovered in 1983 and 1979, respectively, and ...
Yoshihisa Uenoyama   +4 more
doaj   +1 more source

Therapeutic potential of spexin in diabetic neuropathy: Insights from in vitro and in vivo models

open access: yesExperimental Physiology, EarlyView.
Abstract The present study investigated the therapeutic potential of spexin (SPX) on both in vitro and in vivo models of diabetic neuropathy (DN). A total of 40 male BALB/c mice were randomly allocated into four experimental groups (n = 10 per group): a normoglycaemic control, an untreated DN group and two SPX treatment groups (DN+SPX‐12.5 and DN+SPX ...
Mehmet Refik Bahar   +5 more
wiley   +1 more source

Label-free, real-time monitoring of membrane binding events at zeptomolar concentrations using frequency-locked optical microresonators

open access: yesNature Communications
G-protein coupled receptors help regulate cellular function and communication, and are targets of small molecule drug discovery efforts. Conventional techniques to probe these interactions require labels and large amounts of receptor to achieve ...
Adley Gin   +6 more
doaj   +1 more source

l-DOPA-Induced Dyskinesia in the Intrastriatal 6-Hydroxydopamine Model of Parkinson's Disease: Relation to Motor and Cellular Parameters of Nigrostriatal Function

open access: yesNeurobiology of Disease, 2002
In order to assess the role of striatal dopamine (DA) afferents in l-DOPA-induced dyskinesia, we have studied a large series of rats sustaining 2, 3, or 4 unilateral injections of 6-hydroxydopamine (6-OHDA) in the lateral striatum.
Christian Winkler   +3 more
doaj   +1 more source

Pharmacology of Kappa Opioid Receptors: Novel Assays and Ligands

open access: yesFrontiers in Pharmacology, 2022
The present study investigated the in vitro pharmacology of the human kappa opioid receptor using multiple assays, including calcium mobilization in cells expressing chimeric G proteins, the dynamic mass redistribution (DMR) label-free assay, and a ...
Chiara Sturaro   +11 more
doaj   +1 more source

Mitochondrial control of ciliary gene expression and structure in striatal neurons

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Neurons drive animal behaviour by receiving and transmitting information and require energy, primarily supplied by mitochondria, to function. Additionally, neurons need to sense environmental changes to adapt, a function that is locally played by the primary cilia.
Dogukan H. Ulgen   +5 more
wiley   +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).
Hugonin, Loïc   +3 more
openaire   +2 more sources

Rare but relevant: Ibogaine and cardiovascular complications—prolonged QT interval and ventricular arrhythmias

open access: yesAddiction, Volume 121, Issue 6, Page 1616-1621, June 2026.
Abstract Revived interest in psychedelic‐assisted therapies has also renewed focus on ibogaine, a psychoactive alkaloid, for its notable anti‐addictive potential. Evidence from observational, open‐label, and limited randomized placebo‐controlled trials indicates that ibogaine and its metabolite noribogaine reduce craving and withdrawal symptoms in ...
Tibor Markus Brunt
wiley   +1 more source

RETRACTED: Alcohol drinking alters stress response to predator odor via BNST kappa opioid receptor signaling in male mice

open access: yeseLife, 2020
Maladaptive responses to stress are a hallmark of alcohol use disorder, but the mechanisms that underlie this are not well characterized. Here, we show that kappa opioid receptor signaling in the bed nucleus of the stria terminalis (BNST) is a critical ...
Lara S Hwa   +11 more
doaj   +1 more source

Dichotomous regulation of striatal plasticity by dynorphin

open access: yesMolecular Psychiatry, 2022
Modulation of corticostriatal plasticity alters the information flow throughout basal ganglia circuits and represents a fundamental mechanism for motor learning, action selection, and reward. Synaptic plasticity in the striatal direct- and indirect-pathway spiny projection neurons (dSPNs and iSPNs) is regulated by two distinct networks of GPCR ...
Renzhi Yang   +5 more
openaire   +4 more sources

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