Results 61 to 70 of about 12,622 (280)

Ethanol enhances neurosteroidogenesis in hippocampal pyramidal neurons by paradoxical NMDA receptor activation [PDF]

open access: yes, 2011
Using an antibody against 5α-reduced neurosteroids, predominantly allopregnanolone, we found that immunostaining in the CA1 region of rat hippocampal slices was confined to pyramidal neurons.
Izumi, Yukitoshi   +2 more
core   +2 more sources

Intranasal Allopregnanolone Confers Rapid Seizure Protection: Evidence for Direct Nose-to-Brain Delivery

open access: yesNeurotherapeutics, 2021
Allopregnanolone, a positive modulator of GABA A receptors with antiseizure activity, has potential in the treatment of seizure emergencies. Instillation of allopregnanolone in 40% sulfobutylether-β-cyclodextrin into the nose in mice rapidly elevated the
D. Żółkowska, Chun-Yi Wu, M. Rogawski
semanticscholar   +1 more source

Temporal changes in the expression of the translocator protein TSPO and the steroidogenic enzyme 5a-reductase in the dorsal spinal cord of animals with neuropathic pain: effects of progesterone administration [PDF]

open access: yes, 2016
Neuropathic pain is a frequent complication of spinal cord injury (SCI), still refractory to conventional treatment. The presence and biological activity of steroidogenic regulatory proteins and enzymes in the spinal cord suggests that neurosteroids ...
Adler, Natalia Sol   +6 more
core   +2 more sources

Allopregnanolone preclinical acute pharmacokinetic and pharmacodynamic studies to predict tolerability and efficacy for Alzheimer's disease.

open access: yesPLoS ONE, 2015
To develop allopregnanolone as a therapeutic for Alzheimer's disease, we investigated multiple formulations and routes of administration in translationally relevant animal models of both sexes.
Ronald W Irwin   +7 more
doaj   +1 more source

Allopregnanolone: State of the art

open access: yesProgress in Neurobiology, 2014
Allopregnanolone, a neuroactive steroid derived from progesterone, is synthesized within the nervous tissue, by means of specific enzymes. Contrary to progesterone and its first metabolite dihydroprogesterone, allopregnanolone is able to interact with GABA-A receptor and not with the classical progesterone receptor.
Melcangi RC, PANZICA, Giancarlo
openaire   +2 more sources

GABAA/Benzodiazepine Receptor Complex in the Dorsal Hippocampus Mediates the Effects of Chrysin on Anxiety-Like Behaviour in Female Rats

open access: yesFrontiers in Behavioral Neuroscience, 2022
Systemic injections of the flavonoid chrysin (5,7-dihydroxyflavone) exert anxiolytic-like effects in ovariectomised and cycling female rats through actions on gamma-aminobutyric acid-A (GABAA) receptors; however, it is unknown if chrysin directly acts on
Juan Francisco Rodríguez-Landa   +8 more
doaj   +1 more source

Tetramethylenedisulfotetramine alters Ca²⁺ dynamics in cultured hippocampal neurons: mitigation by NMDA receptor blockade and GABA(A) receptor-positive modulation. [PDF]

open access: yes, 2012
Tetramethylenedisulfotetramine (TETS) is a potent convulsant that is considered a chemical threat agent. We characterized TETS as an activator of spontaneous Ca²⁺ oscillations and electrical burst discharges in mouse hippocampal neuronal cultures at 13 ...
Cao, Zhengyu   +5 more
core   +2 more sources

The neurosteroid allopregnanolone sulfate inhibits Nav1.3 α subunit-containing voltage-gated sodium channels, expressed in Xenopus oocytes

open access: yesJournal of Pharmacological Sciences, 2018
The neurosteroid allopregnanolone has potent analgesic effects, and its potential use for neuropathic pain is supported by recent reports. However, the analgesic mechanisms are obscure.
Takafumi Horishita   +9 more
doaj   +1 more source

Structural insights into opposing actions of neurosteroids on GABAA receptors

open access: yesNature Communications, 2023
γ-Aminobutyric acid type A (GABAA) receptors mediate fast inhibitory signaling in the brain and are targets of numerous drugs and endogenous neurosteroids.
Dagimhiwat H. Legesse   +7 more
doaj   +1 more source

Allopregnanolone and neuroinflammation: a focus on multiple sclerosis [PDF]

open access: yesFrontiers in Cellular Neuroscience, 2014
The progesterone derivative allopregnanolone (ALLO) is one of the most widely studied compounds among neurosteroids. Through interactions with GABA-A receptors expressed by neurons and glial cells, ALLO has been shown to affect diverse aspects of neural cell physiology, including cell proliferation and survival, migration, and gene expression.
Noorbakhsh, Farshid   +2 more
openaire   +3 more sources

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