Effects of fenfluramine on free-operant timing behaviour: evidence for involvement of 5-HT2A receptors.

abstract：AIM:It is widely assumed that the upcoming therapeutics for Alzheimer's disease will require to act on more than one target to be effective. We investigated here whether a combination of the nicotinic receptor allosteric modulator/cholinesterase inhibitor galantamine can act synergistically with the type 4 serotonin re...

journal_title：Psychopharmacology

authors： Freret T,Lelong-Boulouard V,Lecouflet P,Hamidouche K,Dauphin F,Boulouard M

更新日期：2017-08-01 00:00:00

abstract：RATIONALE:A subset of male rats that self-administer 3,4-methylenedioxypyrovalerone (MDPV) have unusually high levels of drug intake; however, factor(s) that influence this behavior (e.g., reinforcement history and sex) are unknown. OBJECTIVES:Characterize the reinforcing potency and effectiveness of MDPV in female ra...

journal_title：Psychopharmacology

authors： Doyle MR,Sulima A,Rice KC,Collins GT

更新日期：2020-11-24 00:00:00

abstract：:Response decrements in an operant task produced by either extinction or by the dopamine receptor blocker pimozide were examined in three experiments which employed intermittent reinforcement schedules. In contrast to the congruency between these treatments previously observed following continuous reinforcement trainin...

journal_title：Psychopharmacology

authors： Tombaugh TN,Anisman H,Tombaugh J

更新日期：1980-01-01 00:00:00

abstract：:Recent work with humans and animals has suggested that the cholinergic system plays an important role in the active control of attention. This study was designed to investigate the effects of scopolamine upon subjects' ability to utilize knowledge of the spatial probability bias in a display in the detection of briefl...

journal_title：Psychopharmacology

authors： Dunne MP,Hartley LR

更新日期：1986-01-01 00:00:00

abstract：RATIONALE:Antidepressants are known to modify human sleep patterns. OBJECTIVES:Duloxetine is a new antidepressant with a mechanism of action involving reuptake inhibition of both serotonin (5-HT) and norepinephrine (NE). In this study, the effects of two dosing regimens of duloxetine on sleep electroencephalography (E...

journal_title：Psychopharmacology

authors： Chalon S,Pereira A,Lainey E,Vandenhende F,Watkin JG,Staner L,Granier LA

更新日期：2005-02-01 00:00:00

abstract：RATIONALE:Typical neuroleptic medications are still administered to as many as 40% of patients receiving antipsychotic treatment in the US. Intermittent administration or interruption of long-term neuroleptic medication for schizophrenia may increase the incidence of human tardive dyskinesias, and similarly may produce...

journal_title：Psychopharmacology

authors： Linn GS,Lifshitz K,O'Keeffe RT,Lee K,Camp-Lifshitz J

更新日期：2001-01-01 00:00:00

abstract：:Using a 15-s intershock interval, an increase in shock-induced fighting was observed following intraventricular 96 microgram 5,7-dihydroxytryptamine (5,7-DHT) and 90 microgram 6-hydroxydopa (6-OHdopa). The incidence of predatory mouse killing was enhanced by 5,7-DHT, but was not affected by 6-OHdopa. Pain sensitivity ...

journal_title：Psychopharmacology

authors： Kantak KM,Hegstrand LR,Eichelman B

更新日期：1981-01-01 00:00:00

abstract：RATIONALE:Pediatric bipolar disorder (PBD) is a chronic and debilitating psychiatric illness. It is associated with many short-term and long-term complications including poor academic and social performance, legal problems and increased risk of suicide. Moreover, it is often complicated by other serious psychiatric dis...

journal_title：Psychopharmacology

authors： Smarty S,Findling RL

更新日期：2007-03-01 00:00:00

abstract：RATIONALE:Buprenorphine reduces both heroin and cocaine intake in opioid addicts, but the mechanisms remain unclear. OBJECTIVES:To determine the effects of chronic buprenorphine treatment on intake of heroin and/or cocaine and measure nucleus accumbens (NAc) dopamine (DA) levels during self-administration. METHODS:In...

journal_title：Psychopharmacology

authors： Sorge RE,Stewart J

更新日期：2006-09-01 00:00:00

abstract：RATIONALE:Abstinence from drug occurs in human addicts for several reasons, including the avoidance of adverse consequences. OBJECTIVES:To explore a model of drug use in the face of adverse consequences in rats through intermittent punishment of drug seeking and to investigate whether the ability to withhold seeking r...

journal_title：Psychopharmacology

authors： Pelloux Y,Everitt BJ,Dickinson A

更新日期：2007-09-01 00:00:00

abstract：:Benzodiazepines and other compounds which act at benzodiazepine binding sites have been shown previously to attenuate the acquisition of conditioned fear in rodents when administered before the acquisition session, an effect which may parallel the disruption of human memory produced by anxiolytics and sedatives. Such ...

journal_title：Psychopharmacology

authors： Sanger DJ,Joly D,Zivkovic B

更新日期：1986-01-01 00:00:00

abstract：:Quetiapine (Seroquel, ICI 204,636) is an atypical antipsychotic that is effective in the treatment of both positive and negative symptoms of schizophrenia, and has a low propensity to cause extrapyramidal symptoms. The compound has a relatively short plasma elimination half-life (approximately 7 h). However, since dop...

journal_title：Psychopharmacology

authors： King DJ,Link CG,Kowalcyk B

更新日期：1998-05-01 00:00:00

abstract：RATIONALE:Numerous preclinical and clinical studies have reported the rapid and sustained antidepressant effects of the NMDA receptor antagonist ketamine. Because ketamine induces several undesirable and dangerous effects, a variety of strategies have been suggested to avoid such effects. OBJECTIVES:Here, we propose t...

journal_title：Psychopharmacology

authors： Podkowa K,Pochwat B,Brański P,Pilc A,Pałucha-Poniewiera A

更新日期：2016-08-01 00:00:00

abstract：:Dose-dependent effects of intravenously administered lorazepam on haemodynamic fluctuations were studied by means of spectral analysis, in order to elucidate sympathetic and parasympathetic components in cardiovascular control during situations of rest and mental stress after benzodiazepine administration. In a double...

journal_title：Psychopharmacology

authors： Tulen JH,Mulder G,Pepplinkhuizen L,Man in 't Veld AJ,van Steenis HG,Moleman P

更新日期：1994-02-01 00:00:00

abstract：RATIONALE:Functional interactions between limbic regions that process emotions and frontal networks that guide response functions provide a substrate for emotional cues to influence behavior. Stimulation of postsynaptic α₂ adrenoceptors enhances the function of prefrontal regions in these networks. However, the impact ...

journal_title：Psychopharmacology

authors： Schulz KP,Clerkin SM,Fan J,Halperin JM,Newcorn JH

更新日期：2013-03-01 00:00:00

abstract：:Shaking movements of the body, similar to that made by a dog when wet ('wet-dog shakes'), occur in rats in response to pharmacological stimuli and in response to stimuli associated with cold and skin irritation. In this study, shaking movements, elicited by a variety of stimuli, were inhibited by central administratio...

journal_title：Psychopharmacology

authors： Wei ET

更新日期：1983-01-01 00:00:00

abstract：RATIONALE:Phytocannabinoids are useful therapeutics for multiple applications including treatments of constipation, malaria, rheumatism, alleviation of intraocular pressure, emesis, anxiety and some neurological and neurodegenerative disorders. Consistent with these medicinal properties, extracted cannabinoids have rec...

journal_title：Psychopharmacology

authors： Deiana S,Watanabe A,Yamasaki Y,Amada N,Arthur M,Fleming S,Woodcock H,Dorward P,Pigliacampo B,Close S,Platt B,Riedel G

更新日期：2012-02-01 00:00:00

abstract：RATIONALE:(+/-)-3,4-methylenedioxymethamphet-amine (MDMA; 'ecstasy'), a commonly used recreational drug, has typically been found to be related to poor cognitive function in humans. However, cannabis consumption may not have been adequately controlled for in these studies. OBJECTIVE:The present study was designed to f...

journal_title：Psychopharmacology

authors： Croft RJ,Mackay AJ,Mills AT,Gruzelier JG

更新日期：2001-01-01 00:00:00

abstract：:Serotonin receptors of the 5HT2 type were labeled on platelet membranes using tritiated ketanserin. Blood was collected from the umbilical cord of newborns and venous samples were collected from 6-year-old children as well as junior-high and high school students (ages 13 through 18) to determine age-related changes in...

journal_title：Psychopharmacology

authors： Biegon A,Greuner N

更新日期：1992-01-01 00:00:00

abstract：:The effects on memory and psychomotor functions of four antidepressants which differ in sedative and anticholinergic properties were assessed. Amitriptyline (37.5, 70 mg), trazodone (100, 200 mg) viloxazine (100, 200 mg), protriptyline (10, 20 mg) or placebo were administered in a double blind, independent groups desi...

journal_title：Psychopharmacology

authors： Curran HV,Sakulsriprong M,Lader M

更新日期：1988-01-01 00:00:00

abstract：:The effects of bromocriptine, lisuride and apomorphine on specific binding of 3H-spiroperidol to homogenates of rat caudate nucleus were studied. (+)-Butaclamol was used to define specific binding. Bromocriptine and lisuride inhibited binding markedly, in vitro and also 30 min after in vivo injection. Bromocriptine co...

journal_title：Psychopharmacology

authors： Weir RL,Hruska RE,Silbergeld EK

更新日期：1981-01-01 00:00:00

abstract：:A paradigm for assessing benzodiazepine receptor sensitivity was developed using intravenous midazolam in normal volunteers. After administration of incremental doses of midazolam, alterations in saccadic eye movement parameters and psychological self ratings were assessed. Significant changes included dose-dependent ...

journal_title：Psychopharmacology

authors： Ball DM,Glue P,Wilson S,Nutt DJ

更新日期：1991-01-01 00:00:00

abstract：RATIONALE:The elevated plus-maze and the light/dark box are two established anxiety tests in rodents, which are useful to screen putative anxiogenic effects of drugs. OBJECTIVE:Caffeine is well known to promote anxious behaviour in humans and animal models, but the precise site of action of the drug is still a matter ...

journal_title：Psychopharmacology

authors： El Yacoubi M,Ledent C,Parmentier M,Costentin J,Vaugeois JM

更新日期：2000-02-01 00:00:00

abstract：RATIONALE:Reelin, a large extracellular matrix glycoprotein, is down-regulated in the brain of schizophrenic patients and of heterozygous reeler mice (rl/+). The behavioral phenotype of rl/- mice, however, matches only partially the schizophrenia hallmarks. OBJECTIVES:We recently reported (Marrone et al., Eur J Neuros...

journal_title：Psychopharmacology

authors： Ammassari-Teule M,Sgobio C,Biamonte F,Marrone C,Mercuri NB,Keller F

更新日期：2009-06-01 00:00:00

abstract：RATIONALE:Epilepsy is a debilitating seizure disorder that affects approximately 50 million people. Noradrenaline reduces neuronal excitability, has anticonvulsant effects and is protective against seizure onset. OBJECTIVE:We investigated the role of α2-adrenoceptors in vivo in a neonatal domoic acid (DOM) rat model o...

journal_title：Psychopharmacology

authors： Thomsen MB,Lillethorup TP,Jakobsen S,Nielsen EH,Simonsen M,Wegener G,Landau AM,Tasker RA

更新日期：2016-10-01 00:00:00

abstract：:The peripheral BDZ receptor ligand Ro 5-4864 was administered to rabbits in doses ranging from 0.2 to 7 mg/kg IV. Changes in electrocortical activity appeared within 1 min after administration, characterized by trains of slow waves in the posterior sensorimotor and optic cortices (0.6-2 mg/kg) and by grand mal seizure...

journal_title：Psychopharmacology

authors： Massotti M,Lucantoni D

更新日期：1986-01-01 00:00:00

abstract：:The effect of 15 min/day of immobilization (IM) stress on oral self-administration (SA) of morphine (0.5 mg/ml) or fentanyl (25 micrograms/ml) and withdrawal was examined in rats. In addition, the role of conditioning factors in these effects was assessed. For each drug, four groups of subjects were exposed for 50 day...

journal_title：Psychopharmacology

authors： Shaham Y

更新日期：1993-01-01 00:00:00

abstract：:Chronic administration of the benzodiazepine (BZ) receptor agonist chlordiazepoxide (CDP) produced tolerance to its motor-impairing effects but little or no tolerance to its hypothermic effects or to its amnesic effects in the radial arm maze. Male Sprague-Dawley rats were pretreated for 14 days with CDP (25 mg/kg, b....

journal_title：Psychopharmacology

authors： Shumsky JS,Lucki I

更新日期：1994-06-01 00:00:00

abstract：:Measurements of the amplitude and latency of the P3b component of the event-related potential (ERP), simple reaction time (SRT) and four psychomotor tests (VAS, DSST, DSp and CFF) were made on 12 male subjects (aged 19-24 years) 1.0-1.5 and 4.0-4.5 h after single oral doses of triprolidine (7.5 mg), terfenadine (60 mg...

journal_title：Psychopharmacology

authors： Swire FM,Marsden CA,Barber C,Birmingham AT

更新日期：1989-01-01 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

authors： Flores-Gracia C,Nuche-Bricaire A,Crespo-Ramírez M,Miledi R,Fuxe K,Pérez de la Mora M

更新日期：2010-12-01 00:00:00