Abstract：
:In order to define the modulatory role played by gamma-aminobutyric acid (GABA) in corticopetal cholinergic projections, the effect of this amino acid and related drugs on gross behaviour, the EEG and the release of acetylcholine (ACh) from the cerebral cortex in freely moving guinea-pigs was studied. gamma Aminobutyric acid, injected intracerebroventricularly (20-50 mumol) induced a three-phase picture: first (5-15 min) behavioural activation and increased release of ACh, then (30-90 min) depression, EEG synchronization and reduced release of ACh, and finally "rebound" stimulation. Ethanolamine-O-sulphate (EOS) injected intraventricularly (28 mumol/kg) or intraperitoneally (14 mmol/kg) reproduced the first two phases of the effects of GABA (i.e. stimulation followed by inhibition), while diazepam (0.7 and 3.5 mumol/kg, i.p.) and flurazepam (32 mumol/kg, i.p.) caused, at first, only depression. Muscimol and 4,5,6,7-tetrahydroisoxazolo(4,5-c)pyridine-3-ol (THIP) injected intraventricularly (in the nmol range) or intraperitoneally (in the mumol range) produced behavioural activation and increased release of ACh; the depressant signs appeared only after very large, toxic doses. Picrotoxin and bicuculline, at sub-convulsive doses, reduced the symptomatology caused by GABA and antagonized the sedation produced by diazepam. Methysergide (8-16 mumol/kg, i.p.) prevented the behavioural activation and the increased release of ACh by GABA, unmasked the depression due to subthreshold doses of diazepam (i.c.v., 7-70 nmol) and reversed the stimulation induced by muscimol into sedation and reduced the outflow of ACh. Pretreatment with 5,7-HT also dampened and shortened the stimulation by muscimol.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Neuropharmacologyjournal_title
Neuropharmacologyauthors
Tanganelli S,Bianchi C,Beani Ldoi
10.1016/0028-3908(85)90134-0subject
Has Abstractpub_date
1985-04-01 00:00:00pages
291-9issue
4eissn
0028-3908issn
1873-7064journal_volume
24pub_type
杂志文章abstract：:Over the last decade, robust human genetic findings have been instrumental in elucidating the heritable basis of nicotine addiction (NA). They highlight coding and synonymous polymorphisms in a cluster on chromosome 15, encompassing the CHRNA5, CHRNA3 and CHRNB4 genes, coding for three subunits of the nicotinic acetyl...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
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abstract：:The acute effects of simvastatin lactone (lipophilic) and simvastatin acid (hydrophilic) on transient focal ischemia were assessed using the isolated guinea pig brain maintained in vitro by arterial perfusion. This new model of cerebral ischemia allows the assessment of the very early phase of the ischemic process, wi...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2011.01.003
更新日期：2011-05-01 00:00:00
abstract：:It is well established that some members of the Deg/ENaC super family of amiloride sensitive ion channels can participate directly in the transduction of mechanical stimuli by sensory neurons in invertebrates. A large body of work has also implicated the acid sensing ion channels family (ASIC1-4) as participants in re...
journal_title：Neuropharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.neuropharm.2014.12.007
更新日期：2015-07-01 00:00:00
abstract：:Oxytocin (100 ng) injected unilaterally into the ventral subiculum of the hippocampus induces penile erection episodes, which started 30 min after treatment and were abolished by the prior injection of d(CH(2))(5)Tyr(Me)(2)-Orn(8)-vasotocin (2 μg), an oxytocin receptor antagonist, into the ventral subiculum. Oxytocin-...
journal_title：Neuropharmacology
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doi：10.1016/j.neuropharm.2011.03.026
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abstract：:The influence of the subunit composition of human GABA(A) receptors upon the GABA-modulatory properties of 5alpha-pregnan-3alpha-ol-20-one (5alpha,3alpha) has been examined using the Xenopus laevis oocyte expression system and the two electrode voltage-clamp technique. Steroid potency (EC(50)) is modestly influenced b...
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pub_type： 杂志文章
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abstract：:Remifentanil is commonly used clinically for perioperative pain relief, but it may induce postoperative hyperalgesia. Low doses of ketamine have remained a common choice in clinical practice, but the mechanisms of ketamine have not yet been fully elucidated. In this study, we examined the possible effects of ketamine ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2019.107783
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abstract：:Thyroid hormone deficiency during early developmental stages causes a multitude of functional and morphological deficits in the brain. In the present study we investigate the effects of a mutated thyroid hormone receptor TR alpha 1 and the resulting receptor-mediated hypothyroidism on the development of GABAergic neur...
journal_title：Neuropharmacology
pub_type： 杂志文章
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更新日期：2010-06-01 00:00:00
abstract：:Regional differences are known in the serotonin-induced modulation of neuronal activity within the amygdala. This in vitro study in rats focuses on analyzing the ionic mechanism underlying serotonin-induced depolarization in the lateral amygdala. Serotonin depolarized membrane potential by 5 mV, which is underlain by ...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2014.03.007
更新日期：2014-07-01 00:00:00
abstract：:The so-called generalized polarization (GP) of the fluorescent probe Laurdan and the steady-state fluorescence anisotropy of the probe diphenylhexatriene (DPH) and its phenylpropionic derivative (PA-DPH) were used to study the effects of several organochlorine insecticides of the chlorophenylethane, chlorinated cycloh...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(99)00194-x
更新日期：2000-04-03 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2003.08.001
更新日期：2004-01-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(94)90040-x
更新日期：1994-11-01 00:00:00
abstract：:Group III metabotropic glutamate receptors (mGluR4,7,8) are widely distributed in the basal ganglia. Injection of group III mGluR agonists into the striatopallidal complex alleviates parkinsonian symptoms in 6-hydroxydopamine-treated rats. In vitro rodent studies have suggested that this may be partly due to modulatio...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2012.05.017
更新日期：2013-03-01 00:00:00
abstract：:These experiments examined the effects of lithium and imipramine on the regulation by norepinephrine in vivo of (Na+, K+)-ATPase in brain and heart. The binding of ouabain and the activity of K+-phosphatase were used as indices of (Na+, K+)-ATPase. In the cerebral cortex, imipramine prevented, and lithium reduced, the...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(88)90042-1
更新日期：1988-03-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(85)90041-3
更新日期：1985-09-01 00:00:00
abstract：:The endocannabinoid system (ECS) comprises the cannabinoid receptors CB1 and CB2 and their endogenous arachidonic acid-derived agonists 2-arachidonoyl glycerol and anandamide, which play important neuromodulatory roles. Recently, a novel class of negative allosteric CB1 receptor peptide ligands, hemopressin-like pepti...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2015.03.021
更新日期：2015-11-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/s0028-3908(84)80002-7
更新日期：1984-02-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2018.07.001
更新日期：2018-09-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2012.07.030
更新日期：2013-01-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2006.05.006
更新日期：2006-09-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(84)90121-7
更新日期：1984-09-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2009.10.002
更新日期：2010-02-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
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更新日期：1991-12-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2015.06.004
更新日期：2015-10-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(94)90112-0
更新日期：1994-06-01 00:00:00
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journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2010.06.008
更新日期：2010-11-01 00:00:00
abstract：:Rats injected intrastriatally with kainic acid (KA), in contrast to sham-treated (control) animals, showed no tolerance toward catalepsy induced by chronic haloperidol treatment (28 days). After termination of chronic haloperidol treatment in control animals, apomorphine-induced stereotypy was significantly enhanced a...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(82)90155-1
更新日期：1982-02-01 00:00:00
abstract：:Our understanding of the role GABA(C) receptors play in the central nervous system is limited due to a lack of specific ligands. Here we describe the pharmacological effects of (+/-)-cis-3- and (+/-)-trans-3-(aminocyclopentyl)methylphosphinic acids ((+/-)-cis- and (+/-)-trans-3-ACPMPA) as novel ligands for the GABA(C)...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/j.neuropharm.2006.09.014
更新日期：2007-03-01 00:00:00
abstract：:Bilateral injection of gamma-aminobutyric acid (GABA, 10-300 micrograms) into the substantia nigra (pars reticulata) of rats produced stereotyped sniffing and had an analgesic-like effect on the hot-plate but not on the tail-flick test. These effects of GABA (30 micrograms) were suppressed by simultaneous administrati...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(88)90097-4
更新日期：1988-08-01 00:00:00
abstract：:The effects of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on the synthesis and release of dopamine (DA) was investigated in the retina of the rabbit in vitro. The results indicated that MPTP did not affect the synthesis of DA, but increased its release. Blockade of the activity of monoamine oxidase (MAO) with...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(87)90009-8
更新日期：1987-11-01 00:00:00
abstract：:Electrical stimulation of the optic nerve evoked two positive waves with short latency, followed by a large negative wave in the suprachiasmatic nucleus of slices of hypothalamus of the rat. The latency to peak of the two positive waves and the large negative wave were 2.7 +/- 0.1, 6.1 +/- 0.1 and 10.3 +/- 0.5 msec, r...
journal_title：Neuropharmacology
pub_type： 杂志文章
doi：10.1016/0028-3908(86)90235-2
更新日期：1986-04-01 00:00:00
