نتایج جستجو برای: gabaa receptor subunit
تعداد نتایج: 656928 فیلتر نتایج به سال:
objective(s):the mechanism of hypothermia action of acetaminophen (apap) remains unclear even 125 years after its synthesis. acetaminophen produces hypothermia. the mechanism of this reduction in core body temperature is not clear but evidence shows that it is not dependent on opioid and cannabinoid receptors. because of strong documents about the roles of gaba and benzodiazepine receptors in h...
Persistent activation of GABAA receptors by extracellular GABA (tonic inhibition) plays a critical role in signal processing and network excitability in the brain. In hippocampal principal cells, tonic inhibition has been reported to be mediated by alpha5-subunit-containing GABAA receptors (alpha5GABAARs). Pharmacological or genetic disruption of these receptors improves cognitive performance, ...
We studied the adaptation of gamma-aminobutyric acid type A (GABAA) receptor function to chronic ethanol exposure in cells stably transfected with the following GABAA receptor subunits: alpha-1 beta-2 gamma-2L, alpha-1 beta-2 gamma-2S, alpha-1 beta-3 gamma-2S, alpha-1 beta-1, alpha-5 beta-3 gamma-3 and alpha-6 beta-3 gamma-2S. Chronic exposure to ethanol resulted in a decrease in muscimol-stimu...
Clobazam (CLB), a 1,5-benzodiazepine (BZD), was FDA-approved in October 2011 for the adjunctive treatment of seizures associated with Lennox-Gastaut syndrome (LGS) in patients 2 years and older. BZDs exert various CNS effects through allosteric modulation of GABAA receptors. The structurally distinct, 1,4-BZD clonazepam (CLN) is also approved to treat LGS. The precise mechanisms of action and c...
GABA-mediated tonic and phasic inhibition of thalamic relay neurons of the dorsal lateral geniculate nucleus (dLGN) was studied after ablating tyrosine (Y) phosphorylation of receptor γ2-subunits. As phosphorylation of γ2 Y365 and Y367 reduces receptor internalization, to understand their importance for inhibition we created a knock-in mouse in which these residues are replaced by phenylalanine...
Allopregnanolone is an endogenous neurosteroid that acts in a rapid non-genomic manner to enhance the function of GABAA receptor (GABAAR), major inhibitory mammalian central nervous system (CNS). Consequently, allopregnanolone elicits anxiolytic, antidepressant, anticonvulsant, analgesic and sedative effects. Endogenous influences neural inhibition behaviour, with perturbed levels implicated de...
In the preceding companion article (Tyndale et al., 1994) we used the PCR to investigate the occurrence of 13 GABAA receptor subunit mRNAs in several cell lines, including those derived from brain (B65, B104, and NB41A3), cerebellum (C17), glia (C6), pituitary (AtT-20), adrenal medulla (PC12), and the endocrine pancreas (RINm5F and beta TC3). In the present study we used the whole-cell configur...
Two types of GABAA receptor-mediated inhibition (phasic and tonic) have been described in cerebellar granule cells, although these cells receive GABAergic input only from a single cell type, the Golgi cell. In adult rats, granule cells express six GABAA receptor subunits abundantly (alpha1, alpha6, beta2, beta3, gamma2, and delta), which are coassembled into at least four to six distinct GABAA ...
With a worldwide incidence as high as 6.7% of children, febrile seizures are one of the most common reasons for seeking pediatric care, but the mechanisms underlying generation of febrile seizures are poorly understood. Febrile seizures have been suspected to have a genetic basis, and recently, mutations in GABAA receptor and sodium channel genes have been identified that are associated with fe...
Polyclonal antibodies were raised to synthetic amino acid sequences of the bovine GABAA receptor qand as-subunits and purified by affinity chromatography on a column coupled with the respective peptide. Anti-peptide %(41&424) and anti-peptide aJ459-467) antibodies immunoprecipitated GABAA receptors and recognized a protein of 53 kDa (PJ and 59 kDa (P& respectively, in Western blots of GABAA rec...
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