Abstract:
:Following the stereotaxic implantation of chronic cannulae for intracerebroventricular (ICV) infusion, rats were given an alcohol preference test to establish their preferred concentration in comparison with water. After alcohol was removed, 15 mg/kg cyanamide was then injected subcutaneously for 4 days in order to maximize volitional intake of single solutions of alcohol, which in these animals ranged from 7 to 15%. The L-dopa-decarboxylase inhibitor benserazide (Ro 4-4602) injected subcutaneously twice daily in doses of 50-100 mg/kg failed to alter the rats' alcohol consumption either in terms of g/kg or proportional values. However, when given ICV twice daily in concentrations of 10 ng-2.0 micrograms per 5.0 microliters volume, benserazide attenuated the rats' alcohol drinking significantly. This reduction occurred in a dose-dependent manner in terms of both absolute and proportional intakes of alcohol. Pre-treatment of the animals with 1.0 microgram benserazide given ICV, when alcohol was removed from the test situation, did not abolish the subsequent ingestion of alcohol but its peripheral administration (50 mg/kg) enhanced drinking. These results suggest that the interference with the metabolic pathway of dopamine or serotonin synthesis, possibly through the mechanism of reduced formation of aldehyde adducts in the brain, markedly alters the pattern of voluntary drinking in the rat. Alternatively, benserazide could act by its central inhibition of aldehyde dehydrogenase, which in turn would concomitantly elevate levels of acetaldehyde and thereby reduce alcohol drinking.
journal_name
Psychopharmacology (Berl)journal_title
Psychopharmacologyauthors
Miñano FJ,Myers RDdoi
10.1007/BF00444688subject
Has Abstractpub_date
1989-01-01 00:00:00pages
176-82issue
2eissn
0033-3158issn
1432-2072journal_volume
98pub_type
杂志文章abstract:RATIONALE:Electrophysiological studies have identified a scalp potential, the late positive potential (LPP), which is modulated by the emotional intensity of observed stimuli. Previous work has shown that the LPP reflects the modulation of activity in extrastriate visual cortical structures, but little is known about t...
journal_title:Psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00213-011-2426-x
更新日期:2012-02-01 00:00:00
abstract:RATIONALE:Cessation of daily caffeine consumption produces a withdrawal syndrome comprised of subjective symptoms and functional impairment. Few controlled studies have examined the physiological effects of caffeine withdrawal. OBJECTIVE:The present study examined the effect of caffeine withdrawal on cerebral blood fl...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s002130050005
更新日期:2000-01-01 00:00:00
abstract::The effects of lormetazepam (0.03 mg/kg IV) a benzodiazepine (BZ) derivative in combination with ZK 93 426 (0.04 mg/kg IV) a beta-carboline, benzodiazepine receptor antagonist were evaluated in humans. Independently, the effects of ZK 93 426 on its own were investigated. A psychometric test battery to evaluate sedatio...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/BF00172956
更新日期:1988-01-01 00:00:00
abstract:RATIONALE:Selective serotonin reuptake inhibitor (SSRI) antidepressants are increasingly prescribed during pregnancy. Changes in serotonergic signaling during human fetal development have been associated with changes in brain development and with changes in affective behavior in adulthood. The suprachiasmatic nucleus (...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-020-05556-2
更新日期:2020-08-01 00:00:00
abstract:RATIONALE:A cue-modulated startle test recently confirmed that smoking cues in smokers may not be withdrawal-like and aversive as traditionally believed. OBJECTIVE:Analogous tests were applied to alcohol cues in inpatient alcoholics. METHODS:Twenty-six withdrawn alcoholics (18 men) were examined. Alcohol-related pict...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130000508
更新日期:2000-09-01 00:00:00
abstract:OBJECTIVE:Acute diazepam administration has been shown to decrease plasma cortisol levels consistent with decreased activity of the hypothalamic-pituitary-adrenal axis, especially in individuals experiencing stress. However, the effects of chronic diazepam treatment on cortisol have been less studied, and the relations...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00213-004-1974-8
更新日期:2005-02-01 00:00:00
abstract:RATIONALE:Pavlovian conditioning with a discrete reward-predictive visual cue can elicit two classes of behaviors: "sign-tracking" (approach toward and contact with the cue) and "goal-tracking" (approach toward the site of reward delivery). Sign-tracking has been proposed to be linked to behavioral disorders involving ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-008-1353-y
更新日期:2009-03-01 00:00:00
abstract:RATIONALE:(+)-HA-966, a partial agonist at the glycine/NMDA modulatory site, significantly reduced i.v. cocaine self-administration in a fixed-ratio (FR) schedule. Since this effect was observed studying only one dose of cocaine and considering the characteristic bell-shaped curve generated by cocaine in self-administr...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-003-1703-8
更新日期:2004-04-01 00:00:00
abstract::The thymoleptics potentiate and modify the behavioral effects of apomorphine (probably the most specific dopaminergic agonist) as well as those of Dopa. The effect of the thymoleptics is not abolished by emptying of amine stores, and this together with other evidence suggests that these drugs facilitate the access of ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00427282
更新日期:1976-09-17 00:00:00
abstract::The effects of drugs on one aspect of impulsive behaviour were evaluated using a schedule in which rats were trained to complete a fixed consecutive number of responses on one of two levers before pressing the second to obtain a reinforcer (FCN). Terminating the chain before completing the FCN resulted in the omission...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130050673
更新日期:1998-08-01 00:00:00
abstract:RATIONALE:Accumulating evidence for the presence of GABA(A) ρ receptors within the amygdala which differ from other members of the GABA(A) receptor family in both subunit composition and functional properties has been recently obtained. OBJECTIVES:This work was conducted to study whether GABA(A) ρ receptors may have a...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-010-1973-x
更新日期:2010-12-01 00:00:00
abstract::The purpose of this review was to establish in vivo apparent pA2 and pKB values for antagonism of the discriminative stimulus effects of benzodiazepine ligands, and to compare these values to those obtained from other behavioral procedures. Articles were chosen from the Medline data base from January 1976 to August 19...
journal_title:Psychopharmacology
pub_type: 杂志文章,meta分析
doi:10.1007/s002130050103
更新日期:1996-11-01 00:00:00
abstract:RATIONALE:Varenicline is believed to work, in part, by reducing craving responses to smoking cues and by reducing general levels of craving; however, these hypotheses have never been evaluated with craving assessed in the natural environments of treatment-seeking smokers. OBJECTIVES:Ecological momentary assessment pro...
journal_title:Psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00213-012-2698-9
更新日期:2012-09-01 00:00:00
abstract::Parenteral administration of the adenosine deaminase (ADA) inhibitor erythro-9-(2-hydroxy-3-nonyl)-adenine (EHNA) results in a profound decrease in spontaneous motor activity in mice and rats. The inhibition of cortical ADA activity measured ex vivo parallels the decrease in spontaneous motor activity in a time-depend...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00427798
更新日期:1983-01-01 00:00:00
abstract:RATIONALE:Robust intravenous (i.v.) nicotine self-administration (SA) in rats has been reported by several laboratories, including our own, using fixed ratio (FR) schedules of reinforcement. Studies on other drugs of abuse, however, suggest that progressive ratio (PR) schedules may provide additional information not ga...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130051153
更新日期:1999-11-01 00:00:00
abstract:RATIONALE:The ultra-short-acting mu opioid agonist analgesic/anesthetic remifentanil (RMF) is extremely rapidly eliminated from blood (half-life in rats, 0.3-0.7 min). This extremely fast elimination is thought to be the main reason why RMF maintains such high rates of responding in animal operant-conditioning models o...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-005-0180-7
更新日期:2005-12-01 00:00:00
abstract:RATIONALE:It has been proposed that brain aldehyde dehydrogenase (ALDH) plays a role in the modulation of some psychopharmacological effects of ethanol. Diethyldithiocarbamate (DDTC), an ALDH inhibitor, elevates blood acetaldehyde levels in the presence of ethanol. Concurrent administration with 4-methylpyrazole (4-MP)...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-001-0991-0
更新日期:2002-04-01 00:00:00
abstract:RATIONALE:Dronabinol (Δ(9)tetrahydrocannabinol) is approved for HIV-related anorexia, yet, little is known about its effects in HIV-positive marijuana smokers. HIV-negative marijuana smokers require higher than recommended dronabinol doses to experience expected effects. OBJECTIVES:Employing a within-subjects, double-...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-010-1995-4
更新日期:2010-12-01 00:00:00
abstract:RATIONALE:Prepulse inhibition (PPI) refers to the reduction of the startle response magnitude when a startling stimulus is closely preceded by a weak stimulus. PPI is commonly used to measure sensorimotor gating. In rats, the PPI reduction induced by the dopamine agonist apomorphine can be reversed by systemic administ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-015-3940-z
更新日期:2015-08-01 00:00:00
abstract:RATIONALE:The precise neural circuitry that encodes fear memory and its extinction within the brain are not yet fully understood. Fearful memories can be persistent, resistant to extinction, and associated with psychiatric disorders, especially post-traumatic stress disorder (PTSD). Here, we investigated the microtopog...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-018-5068-4
更新日期:2019-01-01 00:00:00
abstract:RATIONALE:In drug-dependent individuals, the primary excessive motivation is for drugs. Studies also indicate altered interest for "natural" rewarding activities associated with motivational disorders that may be relevant to drug dependence. However, to date, the impact of drug dependence and withdrawal upon motivation...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-011-2612-x
更新日期:2012-06-01 00:00:00
abstract::Rats may produce ultrasonic vocalizations (USV) in threatening situations. USV of adult male rats in association with aversive stimulation was evaluated as a screening method for anxiolytic drugs. The triazolobenzodiazepine alprazolam, the 5-HT uptake inhibitors fluvoxamine and clomipramine, the mixed 5-HT/NA uptake i...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02245095
更新日期:1995-01-01 00:00:00
abstract::Two experiments were conducted to study the effects of anxiogenic drugs on dopamine release and metabolism in nucleus accumbens. Microdialysis probes were implanted into the nucleus accumbens, and rats were tested the day after implantation. In the first experiment, groups of rats received injections of saline, 1.25 o...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02245888
更新日期:1992-01-01 00:00:00
abstract::Haloperidol has recently been found to be metabolized to its pyridinium ion (HP+). This conversion of haloperidol to HP+ appears to be similar to the activation of the dopaminergic neurotoxin N-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) to N-methyl-4-phenyl pyridinium ion (MPP+). MPP+ is responsible for the dam...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02246077
更新日期:1995-10-01 00:00:00
abstract::The novel nicotinic agonist 1-acetyl-4-methylpiperazine (AMP) has been studied in ligand-binding and behavioural studies. AMP methiodide potently inhibited [3H]-(-)-nicotine and [125I]-alpha-bungarotoxin binding to P2 membranes from rat brain and [125I]-alpha-bungarotoxin binding to rat skeletal muscles. AMP HCl also ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02251292
更新日期:1993-01-01 00:00:00
abstract::There is little evidence concerning the effects of caffeine in doses typical of one cup of tea. The present study investigated the effect of 60 mg caffeine, consumed in either tea or hot water, on performance on a subset of the CANTAB test battery. Eight males participated in a practice session and four test sessions....
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130050746
更新日期:1998-11-01 00:00:00
abstract::The [14C]-2-deoxyglucose method was used to map the in vivo metabolic response of glucose to savoxepine, a novel tetracyclic cyano-dibenzoxepino-azepine. Savoxepine is reported to have higher affinity for dopamine (DA) receptors in the hippocampus than in the striatum and hence should have dose-dependent, anatomically...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02244849
更新日期:1994-03-01 00:00:00
abstract::After publication of this paper, the authors determined an error in Fig. 2C. ...
journal_title:Psychopharmacology
pub_type: 已发布勘误
doi:10.1007/s00213-019-05269-1
更新日期:2019-07-01 00:00:00
abstract:RATIONALE:Changes in serotonin(1B) (5-HT(1B)) receptor function appear to modify the reinforcing properties of cocaine, but the direction of this effect is not completely clear. Pharmacological stimulation of 5-HT(1B) enhanced the rewarding properties of self-administered cocaine while attenuating the threshold-reducin...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-002-1145-8
更新日期:2002-09-01 00:00:00
abstract:RATIONALE:Alcohol intoxication can dampen negative affective reactions to stressors. Recently, it has been proposed that these acute anxiolytic effects of alcohol may extend to dampening of negative affective reactions to error commission during cognitive control tasks. Nonetheless, empirical verification of this claim...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-020-05619-4
更新日期:2020-11-01 00:00:00