Results 21 to 30 of about 12,549 (250)

Realising the therapeutic potential of neuroactive steroid modulators of the GABAA receptor [PDF]

open access: yes, 2020
In the 1980s particular endogenous metabolites of progesterone and of deoxycorticosterone were revealed to be potent, efficacious, positive allosteric modulators (PAMs) of the GABAA receptor (GABAAR).
Belelli, Delia   +3 more
core   +1 more source

Neuroactive steroids in depression and anxiety disorders: Clinical studies [PDF]

open access: yes, 2006
Certain neuroactive steroids modulate ligand-gated ion channels via non-genomic mechanisms. Especially 3 alpha-reduced pregnane steroids are potent positive allosteric modulators of the gamma-aminobutyric acid type A (GABA(A)) receptor.
Akwa Y   +79 more
core   +1 more source

Synthetic epoxy-pregnan steroids: effects on anxiety behavior in rats [PDF]

open access: yes, 2016
Neurosteroids like 3α-OH-5α-pregnan-20-one (allopregnanolone) and 3α-OH-5β-pregnan-20-one (pregnanolone) modulate the γ-aminobutyric acid-A (GABAA) receptor function and produce several effects that can be considered for therapeutical pruposes like ...
Coirini, Hector   +2 more
core   +1 more source

Investigation of the Possible Allostery of Koumine Extracted From Gelsemium elegans Benth. And Analgesic Mechanism Associated With Neurosteroids

open access: yesFrontiers in Pharmacology, 2021
Translocator protein 18 kDa (TSPO) is an evolutionarily conserved 5-transmembrane domain protein, and has been considered as an important therapeutic target for the treatment of pain.
Bojun Xiong   +13 more
doaj   +1 more source

Block of NMDA receptor channels by endogenous neurosteroids: implications for the agonist induced conformational states of the channel vestibule [PDF]

open access: yes, 2015
N-methyl-D-aspartate receptors (NMDARs) mediate synaptic plasticity, and their dysfunction is implicated in multiple brain disorders. NMDARs can be allosterically modulated by numerous compounds, including endogenous neurosteroid pregnanolone sulfate ...
A Malayev   +61 more
core   +1 more source

Neurosteroids in Schizophrenia: Pathogenic and Therapeutic Implications

open access: yesFrontiers in Psychiatry, 2018
Neurosteroids are a group of important endogenous molecules affecting many neural functions in the brain. Increasing evidence suggests a possible role of these neurosteroids in the pathology and symptomatology of schizophrenia (SZ) and other mental ...
HuaLin Cai   +8 more
doaj   +1 more source

Neurosteroids as Selective Inhibitors of Glycine Receptor Activity: Structure-Activity Relationship Study on Endogenous Androstanes and Androstenes

open access: yesFrontiers in Molecular Neuroscience, 2020
The ability of androstane and androstene neurosteroids with modifications at C-17, C-5, and C-3 (compounds 1-9) to influence the functional activity of inhibitory glycine and γ-aminobutyric acid (GABA) receptors was estimated.
Julia V. Bukanova   +2 more
doaj   +1 more source

Allopregnanolone Decreases Evoked Dopamine Release Differently in Rats by Sex and Estrous Stage

open access: yesFrontiers in Pharmacology, 2021
Mesolimbic dopamine transmission is dysregulated in multiple psychiatric disorders, including addiction. Previous studies found that the endogenous GABAergic steroid (3α,5α)-3-hydroxy-5-pregnan-20-one (allopregnanolone) modulates dopamine levels in the ...
Ana Paula S. Dornellas   +12 more
doaj   +1 more source

Midazolam inhibits hippocampal long-term potentiation and learning through dual central and peripheral benzodiazepine receptor activation and neurosteroidogenesis [PDF]

open access: yes, 2010
Benzodiazepines (BDZs) enhance GABA(A) receptor inhibition by direct actions on central BDZ receptors (CBRs). Although some BDZs also bind mitochondrial receptors [translocator protein (18 kDa) (TSPO)] and promote the synthesis of GABA-enhancing ...
Izumi, Yukitoshi   +3 more
core   +2 more sources

Neurosteroids and epilepsy [PDF]

open access: yesCurrent Opinion in Neurology, 2010
Neurosteroids are a family of compounds synthesized directly in the brain by transforming cholesterol into pregnenolone, which is then converted to compounds such as allopregnanolone and allotetrahydrodeoxycorticosterone. In view of their ability to modulate neurotransmission, neurosteroids may influence the clinical course of epileptic disorders.
Giuseppe Biagini   +2 more
openaire   +4 more sources

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