Inhibiting 5alpha-reductase in the amygdala attenuates antianxiety and antidepressive behavior of naturally receptive and hormone-primed ovariectomized rats.

abstract：INTRODUCTION:Genetic causes, or predisposition, are increasingly accepted to be part of the ethiopathogenesis of many neuropsychiatric diseases. While genes can be studied in any type of cells, their physiological function in human brain cells is difficult to evaluate, particularly in living subjects. METHODS:As a fir...

journal_title：Psychopharmacology

authors： Dage JL,Colvin EM,Fouillet A,Langron E,Roell WC,Li J,Mathur SX,Mogg AJ,Schmitt MG,Felder CC,Merchant KM,Isaac J,Broad LM,Sher E,Ursu D

更新日期：2014-03-01 00:00:00

abstract：:The effects of caffeine (1-100 mg/kg, IP), (-)N-((R)-1-methyl-2-phenylethyl)-adenosine (PIA) (0.01-1 mg/kg, IP), and of the two drugs in combination were studied in mice responding under a mult FR30 FI600 s schedule of food presentation. The lowest dose of caffeine, 1 mg/kg, had no effect on responding under either co...

journal_title：Psychopharmacology

authors： Glowa JR,Sobel E,Malaspina S,Dews PB

更新日期：1985-01-01 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

authors： McKee SA,Krishnan-Sarin S,Shi J,Mase T,O'Malley SS

更新日期：2006-12-01 00:00:00

abstract：RATIONALE:The involvement of dopamine neurotransmission in opiate reward remains controversial. OBJECTIVE:To investigate the dopaminergic basis of opiate reward by comparing the effect of systemic injection of the D2/D3 antagonist sulpiride on morphine self-administration (ICSA) into the ventral tegmental area (VTA) o...

journal_title：Psychopharmacology

authors： David V,Durkin TP,Cazala P

更新日期：2002-03-01 00:00:00

abstract：:The importance of brain noradrenaline synthesis and receptor activation for the hyperkinesia induced by carbidopa plus L-Dopa in reserpine-treated or normal mice was analyzed in four different models. After pretreatment with reserpine and the monoamine oxidase inhibitor nialamide, the hyperkinesia induced by L-Dopa (2...

journal_title：Psychopharmacology

authors： Andén NE,Strömbom U,Svensson TH

更新日期：1977-11-15 00:00:00

abstract：RATIONALE:Recent findings have shown a complexly regulated 5-HT system as it is linked to different kinds of aggression. OBJECTIVE:We focus on (1) phasic and tonic changes of 5-HT and (2) state and trait of aggression, and emphasize the different receptor subtypes, their role in specific brain regions, feed-back regul...

journal_title：Psychopharmacology

authors： Takahashi A,Quadros IM,de Almeida RM,Miczek KA

更新日期：2011-02-01 00:00:00

abstract：:In a double-blind comparison of haloperidol decanoate and fluphenazine decanoate given 4-weekly for 60 weeks as maintenance therapy in 38 chronic schizophrenic in-patients, plasma haloperidol, fluphenazine and prolactin levels were measured at regular intervals by radioimmunoassay. After the first injection, the mean ...

journal_title：Psychopharmacology

authors： Wiles DH,McCreadie RG,Whitehead A

更新日期：1990-01-01 00:00:00

abstract：:The effects of naloxone, metenkephalin, and morphine were tested on phencyclidine(PCP)-induced stereotyped behaviors, ataxia, and hyperactivity in the rat. Naloxone (8 mg/kg) significantly decreased stereotypy, ataxia, and hyperactivity across all PCP doses tested (2.0, 4.0, and 6.0 mg/kg). Metenkephalin (40 microgram...

journal_title：Psychopharmacology

authors： Castellani S,Giannini AJ,Adams PM

更新日期：1982-01-01 00:00:00

abstract：OBJECTIVE:The aim of our study was to test whether ketamine produces an antidepressant effect in animal model of olfactory bulbectomy and assess the role of mammalian target of rapamycin (mTOR) pathway in ketamine's antidepressant effect. METHODS:Bulbectomized (OBX) rats and sham controls were assigned to four subgrou...

journal_title：Psychopharmacology

authors： Holubova K,Kleteckova L,Skurlova M,Ricny J,Stuchlik A,Vales K

更新日期：2016-06-01 00:00:00

abstract：RATIONALE:(1S,3aS)-8-(2,3,3,4,5,6-hexahydro-1H-phenalen-1-yl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-4-one (Ro 64-6198), a non-peptidic agonist for the opioid receptor-like1 (ORL1) receptor, exhibits anxiolytic properties in stressful conditions. OBJECTIVE:The present study was aimed at evaluating whether activation of ...

journal_title：Psychopharmacology

authors： Ciccocioppo R,Biondini M,Antonelli L,Wichmann J,Jenck F,Massi M

更新日期：2002-05-01 00:00:00

abstract：:Recent studies indicate that some aspects of memory can be enhanced by the administration of oxygen or glucose. Considering the dependency of glucose metabolism upon oxygen supply, the present study predicted that administering a combination of 100% oxygen with glucose would have greater memory-enhancing effects than ...

journal_title：Psychopharmacology

authors： Winder R,Borrill J

更新日期：1998-04-01 00:00:00

abstract：RATIONALE:Heavy ecstasy use in humans has been associated with cognitive impairments and changes in cognitive brain function supposedly due to damage to the serotonin system. There is concern that even a single dose of 3,4-methylenedioxymethamphetamine may be neurotoxic, but very little is known about the consequences ...

journal_title：Psychopharmacology

authors： Jager G,de Win MM,Vervaeke HK,Schilt T,Kahn RS,van den Brink W,van Ree JM,Ramsey NF

更新日期：2007-08-01 00:00:00

abstract：:A novel self-stimulation methodology involving a fixed-interval (FI-5 s) schedule of reinforcement, microanalysis and threshold evaluation was used to investigate the effects of cocaine on rats lever pressing for electrical stimulation of the prefrontal cortex. Cocaine (15 mg/kg) increased medial prefrontal cortex (MP...

journal_title：Psychopharmacology

authors： McGregor IS,Atrens DM,Jackson DM

更新日期：1992-01-01 00:00:00

abstract：:Young adult rats (5 months) were compared with aged (28 months) rats in their ability to learn and perform in a diazepam drug discrimination. Both groups of rats were drug naive at the onset of the experiment. Adult and aged animals learned to discriminate diazepam. In general, the response rates under both drug and v...

journal_title：Psychopharmacology

authors： Amrick CL,Bennett DA

更新日期：1987-01-01 00:00:00

abstract：RATIONALE:Relapse to drug-seeking in abstinent heroin addicts and reinstatement in experimental animals are observed when exposed to drug-associated stimuli or cues, the drug itself, and stressful events. It has been shown that footshock-induced stress increases the rewarding effects of opiates, delays extinction, and ...

journal_title：Psychopharmacology

authors： Ribeiro Do Couto B,Aguilar MA,Manzanedo C,Rodríguez-Arias M,Armario A,Miñarro J

更新日期：2006-05-01 00:00:00

abstract：RATIONALE:Delaying presentation of a drug can decrease its effectiveness as a reinforcer, but the effect of delaying punishment of drug self-administration is unknown. OBJECTIVE:This study examined whether a histamine injection could punish cocaine self-administration in a drug-drug choice, whether delaying histamine ...

journal_title：Psychopharmacology

authors： Woolverton WL,Freeman KB,Myerson J,Green L

更新日期：2012-04-01 00:00:00

abstract：RATIONALE:Delta-opioid agonists produce a number of behavioral effects, including convulsions, antinociception, locomotor stimulation, and antidepressant-like effects. The development of these compounds as treatments for depression is limited by their convulsive effects. Therefore, determining how to separate the convu...

journal_title：Psychopharmacology

authors： Jutkiewicz EM,Rice KC,Traynor JR,Woods JH

更新日期：2005-11-01 00:00:00

abstract：:Chronic administration of the pre-synaptic alpha-adrenoreceptor agonist clonidine decreases the concentration of the extra-neuronal metabolite of noradrenaline normetanephrine in the amygdaloid cortex and increases it in the mid-brain. Conversely, blockade of these pre-synaptic receptors by yohimbine increases the nor...

journal_title：Psychopharmacology

authors： Fludder JM,Leonard BE

更新日期：1979-09-01 00:00:00

abstract：:Haloperidol disposition has been associated with reversible metabolism: it is reversibly reduced to its metabolite, reduced haloperidol, which has less pharmacologic activity than the parent compound. To characterize the interconversion process, six healthy male schizophrenics were administered a single dose of 10 mg ...

journal_title：Psychopharmacology

authors： Jann MW,Lam YW,Chang WH

更新日期：1990-01-01 00:00:00

abstract：RATIONALE:Research suggests the experimental manipulation of oxytocin facilitates positive interactions, cooperation, and trust. The mechanism by which oxytocin influences social behavior is not well understood. OBJECTIVE:We explored the hypothesis that oxytocin alters how people perceive themselves, which could be on...

journal_title：Psychopharmacology

authors： Cardoso C,Ellenbogen MA,Linnen AM

更新日期：2012-04-01 00:00:00

abstract：:The effects of amphetamine on the partial punishment effect (PPE) at one trial per day, were examined. Two groups of animals were trained to run in a straight alley. The continuously reinforced (CRF) group received food reward on every trial. The partially punished (PP) group received food reward on every trial but in...

journal_title：Psychopharmacology

authors： Weiner I,Bercovitz H,Feldon J

更新日期：1986-01-01 00:00:00

abstract：:The protective effects of acute and chronic diazepam administration (4 mg/kg) against seizures induced by pentylenetetrazole (PTZ) and picrotoxin were investigated. Considering the incidence of tonic-clonic convulsions, tolerance to the protective effects of diazepam was evident by day 5 if the mice were challenged wi...

journal_title：Psychopharmacology

authors： File SE

更新日期：1983-01-01 00:00:00

abstract：:Effects of chlordiazepoxide (CDP) and ethanolamine-O-sulphate (EOS) alone and in combination were tested on the acquisition and performance of continuous reinforcement - time out (CR-TO) and variable interval reinforcement - time out (VI-TO) operant discriminations in rats. CDP disrupted acquisition of CR-TO discrimin...

journal_title：Psychopharmacology

authors： Hodges H,Baum S,Taylor P,Green S

更新日期：1986-01-01 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

authors： Molander L,Randrup A

更新日期：1976-09-17 00:00:00

abstract：:Chronic nicotine infusion has been found in a series of studies in our laboratory to significantly improve choice accuracy of rats in the eight-arm radial maze. The current study was designed to compare the effects of chronic nicotine infusion on working and reference memory in a 16-arm radial maze. Nicotine was admin...

journal_title：Psychopharmacology

authors： Levin ED,Kim P,Meray R

更新日期：1996-09-01 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

authors： Millan MJ,Girardon S,Dekeyne A

更新日期：1999-03-01 00:00:00

abstract：:The effects of dietary caffeine and the amount and palatability of food on the acquisition of cocaine (0.2 mg/kg) self-administration were examined. Using an autoshaping procedure, seven groups of 13 rats each were trained to press a lever resulting in a cocaine (0.2 mg/kg infusion under a fixed-ratio 1 (FR 1) schedul...

journal_title：Psychopharmacology

authors： Carroll ME,Lac ST

更新日期：1998-05-01 00:00:00

abstract：:An experiment was conducted to test whether centrally acting drugs could act as conditioned stimuli (CS) in a classical conditioning paradigm in which electric shock acted as the unconditioned stimulus (US) and suppression of drinking was used as an indicator of a conditioned response (CR). Thirsty rats were allowed t...

journal_title：Psychopharmacology

authors： Overton DA,Shen CF,Tatham TA

更新日期：1993-01-01 00:00:00

abstract：RATIONALE:Atypical antipsychotic drugs are classically associated with lower propensity to extrapyramidal symptoms (EPS) and hyperprolactinemia than typical antipsychotic drugs. It has not been clarified why some atypical antipsychotic drugs, such as amisulpride, induce prolactin plasma concentration (PRL) elevation, b...

journal_title：Psychopharmacology

authors： Bressan RA,Erlandsson K,Spencer EP,Ell PJ,Pilowsky LS

更新日期：2004-09-01 00:00:00

abstract：RATIONALE:Alcohol and nicotine addiction are prevalent conditions that co-occur. Despite the prevalence of co-use, factors that influence the suppression and enhancement of concurrent alcohol and nicotine intake are largely unknown. OBJECTIVES:Our goals were to assess how nicotine abstinence and availability influence...

journal_title：Psychopharmacology

authors： DeBaker MC,Moen JK,Robinson JM,Wickman K,Lee AM

更新日期：2020-04-01 00:00:00