Abstract:
RATIONALE:Executive function impairment, as classically assessed using the Wisconsin Card Sort Test or intradimensional/extradimensional tests, is a key feature of schizophrenia but remains inadequately treated by existing therapies. Recently, however, erythropoietin has been shown to improve attentional set-shifting performance in schizophrenic patients. OBJECTIVE:The present study utilized the rat intradimensional/extradimensional task to investigate the potential of erythropoietin to reverse a phencyclidine-induced extradimensional shift impairment when given alone or in combination with subchronic haloperidol treatment. METHODS:Rats were subjected to a subchronic systemic administration (7 days, b.i.d) of either saline vehicle or phencyclidine (5 mg/kg) followed by a 7-day washout period during which haloperidol was given. Subsequently, rats were trained to dig in baited bowls for a food reward and to discriminate on the basis of digging media or bowl odor. In experiment 1, rats performed a series of discriminations following acute administration of vehicle, erythropoietin, or modafinil. In a second experiment, rats receiving either haloperidol in the drinking water or just normal drinking water were run in the attentional set-shifting task after acute administration of erythropoietin (1,000 or 10,000 IU/ml i.p., selected from experiment 1). RESULTS:The subchronic phencyclidine-induced extradimensional deficit was ameliorated by both erythropoietin and modafinil. When combined with subchronic haloperidol, the higher dose of erythropoietin tested was able to reverse the extradimensional shift impairment. CONCLUSIONS:Overall, these findings further support the use of erythropoietin as an adjunct to antipsychotic therapy in order to address, at least part of, the cognitive dysfunction associated with schizophrenia.
journal_name
Psychopharmacology (Berl)journal_title
Psychopharmacologyauthors
Goetghebeur PJ,Lerdrup L,Sylvest A,Dias Rdoi
10.1007/s00213-010-1990-9subject
Has Abstractpub_date
2010-12-01 00:00:00pages
635-42issue
4eissn
0033-3158issn
1432-2072journal_volume
212pub_type
杂志文章abstract::The effects of eight serotonin (5-HT) receptor antagonists on the anorectic effect of d-fenfluramine (3.0 mg/kg, IP) were examined in a test of sweet mash consumption, using non-deprived male rats. d-Fenfluramine's effect was attenuated by the mixed 5-HT1/5-HT2 receptor antagonists, methiothepin and metergoline; by th...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00442252
更新日期:1989-01-01 00:00:00
abstract:RATIONALE:Several studies have demonstrated that males with a family history of alcoholism (FHP) show less of a response to alcohol (e.g. lower ratings of intoxication) than males without a family history of alcoholism (FHN). The purpose of this pilot study was to determine if FHP females also showed a reduced sensitiv...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00213-003-1474-2
更新日期:2003-08-01 00:00:00
abstract::In order to study the role of dopamine (DA) in the regulation of seizure mechanisms in man, a non-emetic dose of apomorphine, a direct stimulant of DA receptors, was administered to eight patients effected by different types of epilepsy. The EEG changes induced by apomorphine administration in comparison to those elic...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00427814
更新日期:1983-01-01 00:00:00
abstract::Herrnstein's matching equation was used to analyze drug effects on performance in random interval reinforcement schedules. Pimozide caused effects compatible with both motor and motivational impairments, in a 5-component multiple schedule, a 3-schedule 3-day cycle (ALT-3), and a 2-schedule 2-day cycle (ALT-2). However...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02244238
更新日期:1990-01-01 00:00:00
abstract::Rats were trained to discriminate between two compound stimulus arrays that included exteroceptive (ES) and interoceptive (IS) stimulus components. The ES components were illumination and tactile cues, and the IS components were produced by d-amphetamine (A) or Na pentobarbital (P) treatment (drug versus drug discrimi...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00174076
更新日期:1986-01-01 00:00:00
abstract:RATIONALE:3,4-Methylenedioxymethamphetamine (MDMA or "ecstasy") causes serotonin neuron damage in laboratory animals. The serotonin system is known to be important in the regulation of mood. Previous research has shown that MDMA users score higher on self-report ratings of depression than controls. However, MDMA users ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-003-1705-6
更新日期:2004-05-01 00:00:00
abstract::Growth hormone (hGH) responses to centrally acting dopamine agonists were used as indices of CNS dopaminergic function in order to test hypotheses implicating dopaminergic alteration in the etiopathology of schizophrenia. Apomorphine, a direct acting dopamine receptor agonist, and L-Dopa, an indirect agonist dependent...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00426313
更新日期:1976-12-21 00:00:00
abstract:RATIONALE:Inhibition of glutamatergic N-methyl-D-aspartate (NMDA) receptors following the administration of NMDA receptor antagonists results in psychotic-like behaviour. Whereas it is known that pharmacological manipulation of dopaminergic and serotonergic pathways affect this drug-induced psychosis, a role for noradr...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130000630
更新日期:2001-03-01 00:00:00
abstract::Active uptake of serotonin by blood platelets of acute schizophrenic patients has been compared to that of a control group. Preliminary results presented in this article indicate that the uptake of the schizophrenic patients was about 40% lower than that of controls. Patients were followed over a period of 5 weeks wit...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00496061
更新日期:1979-08-08 00:00:00
abstract::Rats were trained on a fixed ratio 10, food-reinforced schedule to recognize a discriminative stimulus (DS) elicited by the selective serotonin (5-HT) reuptake inhibitor (SSRI), citalopram (2.5 mg/kg, IP). The preferential, high efficacy agonist at 5-HT2C receptors, Ro60-0175, dose-dependently generalized to citalopra...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130050910
更新日期:1999-03-01 00:00:00
abstract:RATIONALE:Several antipsychotic drugs are metabolised by the polymorphic cytochrome P(450) CYP2D6. The impact of the polymorphism on the plasma levels and the occurrence of side effects have not been clearly established. OBJECTIVE:To investigate the impact of the CYP2D6 polymorphism on the steady-state plasma concentr...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-002-1059-5
更新日期:2002-06-01 00:00:00
abstract::The release of serotonin (5-HT) at serotonergic nerve terminals is regulated by 5-HT(1B) autoreceptors. Several studies have reported that the effects of selective 5-HT reuptake inhibitors (SSRIs) on extracellular 5-HT are augmented by 5-HT(1B) receptor antagonists, whereas administration of these antagonists alone do...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-002-1371-0
更新日期:2003-05-01 00:00:00
abstract:RATIONALE:The reinforcing effects of stimulant drugs such as D-amphetamine, caffeine, and cocaine are modulated by behavioral demands following drug administration. OBJECTIVE:The objective of this study was to assess the reinforcing effects of methylphenidate under different behavioral demands using a modified progres...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00213-004-1946-z
更新日期:2005-01-01 00:00:00
abstract:RATIONALE:Environmental stimuli associated with drugs of abuse are believed to play a major role in the motivation to take drugs, drug dependence, and relapse. Previous work from this laboratory demonstrated that the response-contingent presentation of drug-related, visual cues was at least as important as nicotine in ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-002-1156-5
更新日期:2002-09-01 00:00:00
abstract::Previous studies indicate that some aspects of endotoxin-induced sickness behavior in rats may be mediated by interleukin-1 stimulated events and can be attenuated by corticosteroids, cyclooxygenase inhibitors and the interleukin-1-receptor antagonist. In the current studies, we replicate and extend these findings in ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130050353
更新日期:1997-08-01 00:00:00
abstract:RATIONALE:It has been proposed that cannabinoid-1 receptor inverse agonists might be effective for smoking cessation. We evaluated this hypothesis with the cannabinoid-1 receptor inverse agonist taranabant. METHODS:Adults who smoked > or =10 cigarettes a day for >1 year and had an expired CO level of > or =10 ppm part...
journal_title:Psychopharmacology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s00213-010-1790-2
更新日期:2010-04-01 00:00:00
abstract:OBJECTIVE:The primary aim of this project was to examine the role of alcohol use in smoking lapse behavior, as alcohol consumption is a known risk factor for poor smoking cessation outcomes. MATERIALS AND METHODS:We have developed a novel human laboratory model to examine two primary aspects of alcohol-mediated tobacc...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-006-0551-8
更新日期:2006-12-01 00:00:00
abstract::5-Hydroxytryptamine1A (5-HT1A) receptors have been shown to be suppressed by corticosteroid hormones in a variety of animal experimental paradigms. It has been suggested that this effect may be central to the pathophysiology of severe clinical depressive illness, a condition in which 5-HT1A receptor function is reduce...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s002130050711
更新日期:1998-10-01 00:00:00
abstract::Effects of two dosages of rubidium chloride on exploration, locomotion, rearing and immobility were assessed for male and female rats in an exploration box and an open field. In contrast to previous findings, rubidium was found to decrease locomotion and rearing in the exploratory box, and also to decrease locomotion ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00426740
更新日期:1979-03-22 00:00:00
abstract::The low rate of success for identifying effective treatments for cognitive dysfunction has prompted recent efforts to improve pharmaceutical discovery and development. In particular, investigators have emphasized improving translation from pre-clinical to clinical research. A specific area of focus has been touchscree...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-015-4012-0
更新日期:2015-11-01 00:00:00
abstract:RATIONALE:Cannabinoid CB1 receptors are expressed in the prefrontal cortex, but their role in mediating executive functions such as behavioral flexibility is unclear. OBJECTIVE:The present study examined the effect of pharmacological activation or blockade of the cannabinoid CB1 receptors on behavioral flexibility usi...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-006-0421-4
更新日期:2006-08-01 00:00:00
abstract::Two studies were conducted to replicate and extend previous demonstrations of smoking-induced, dose-related reports of euphoria, and to confirm this relationship using measures of plasma nicotine. In experiment 1, overnight-deprived subjects, in three different sessions, smoked ultralow-, high-nicotine, and usual-bran...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/BF02247422
更新日期:1992-01-01 00:00:00
abstract::Nicotine has been reported to increase or decrease measures of activity in rats, including locomotor activity and rearing. Nicotine dose and repeated exposure to nicotine are known to be important factors in determining the effects on locomotor behavior. Less information has been gathered on rearing and other measures...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02244758
更新日期:1994-06-01 00:00:00
abstract:RATIONALE:Severe, traumatic stress or repeated exposure to stress can result in long-term deleterious effects, including hippocampal cell atrophy and death, which, in turn, result in memory impairments and behavioural abnormalities. The dopaminergic D(2) receptor agonist, bromocriptine, has been shown to modulate learn...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-007-0801-4
更新日期:2007-08-01 00:00:00
abstract:RATIONALE:Cognitive impairment in schizophrenia is particularly evident in the domains of attention and executive functions. Atypical antipsychotics are somewhat more effective than conventional antipsychotics in improving cognitive functioning in these patients. OBJECTIVE:The aim of this study was to compare the effe...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-007-0959-9
更新日期:2008-02-01 00:00:00
abstract:BACKGROUND:The serotonin (5-HT) deficiency hypothesis of aggression is being seriously challenged by pharmacological data showing robust anti-aggressive effects of 5-HT1A receptor agonists in dose ranges that concomitantly inhibit 5-HT neurotransmission. Hence, an adequate interpretation of the role of 5-HT activity in...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-015-4173-x
更新日期:2016-03-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Previous studies have demonstrated that sensitization to repeated doses of cocaine results in prolonged changes in glutamate transmission. However, little is known about long-term changes in glutamate transmission following a single dose of cocaine. Our laboratory has previously reported that a...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-002-1296-7
更新日期:2003-02-01 00:00:00
abstract:BACKGROUND AND RATIONALE:More than two decades ago, Wise proposed his "anhedonia hypothesis" to explain the role of dopamine in motivated behaviors. The hypothesis posits that dopamine mediates the pleasure experienced by reward obtainment. However, some experimental findings have contested this hypothesis and several ...
journal_title:Psychopharmacology
pub_type: 杂志文章,评审
doi:10.1007/s00213-006-0521-1
更新日期:2007-04-01 00:00:00
abstract:RATIONALE:The endogenous opioid system has been implicated in substance abuse and response to pharmacotherapies for nicotine and alcohol addiction. We examined (1) the association of the functional OPRM1 A118G variant with the relative reinforcing value of nicotine and (2) the main and interacting effects of the mu-opi...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-006-0504-2
更新日期:2006-10-01 00:00:00
abstract:RATIONALE:Recent studies have shown that metabotropic glutamate receptor 5 (mGluR5) can modulate N-methyl-D-aspartate (NMDA) receptor function in vivo. For example, the mGluR5 antagonist, 2-methyl-6-(phenylethynyl)-pyridine (MPEP) can potentiate PCP (phencyclidine)-evoked hyperactivity and PCP-induced disruptions in pr...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-004-1827-5
更新日期:2004-09-01 00:00:00