Early postnatal clonidine treatment results in altered regional catecholamine utilisation in adult rat brain.

abstract：:It is commonly believed that repeated exposures diminish the pleasurable effects of drugs and hence that pleasure must have only a minor role in addiction. In six experiments with rats, repeated exposures to amphetamine, morphine, or cocaine were found to enhance the drug-induced rewarding effect as measured by condit...

journal_title：Psychopharmacology

authors： Lett BT

更新日期：1989-01-01 00:00:00

abstract：:Acute and chronic effects of ethosuximide (40, 80, and 120 mg/kg), phenytoin (2.5, 5, and 7.5 mg/kg), clonazepam (0.25, 0.5, and 0.75 mg/kg), and valproic acid (40, 80, and 120 mg/kg) were examined in pigeons performing under a delayed-matching-to-sample procedure. Acute administration of clonazepam or valproic acid p...

journal_title：Psychopharmacology

authors： Poling A,Picker M,Vande Polder D,Clark R

更新日期：1986-01-01 00:00:00

abstract：RATIONALE:The notion that the onset of action of antidepressant drugs (ADs) takes weeks is widely accepted; however, the sequence of events necessary for therapeutic effects still remains obscure. OBJECTIVE:We aimed to evaluate a time-course of ADs-induced alterations in the expression of 95 selected genes in 4 region...

journal_title：Psychopharmacology

authors： Gąska M,Kuśmider M,Solich J,Faron-Górecka A,Krawczyk MJ,Kułakowski K,Dziedzicka-Wasylewska M

更新日期：2012-10-01 00:00:00

abstract：RATIONALE:A deficit in attention and information processing has been considered a central feature in schizophrenia, which might lead to stimulus overload and cognitive fragmentation. It has been shown that patients with schizophrenia display a relative inability to gate incoming stimuli. Thus, patients repeatedly subje...

journal_title：Psychopharmacology

authors： Klamer D,Pålsson E,Revesz A,Engel JA,Svensson L

更新日期：2004-11-01 00:00:00

abstract：:Twenty-one (three groups of seven), men and women, 25-50 years of age were studied to determine whether or not rebound insomnia would increase the likelihood of self administering a benzodiazepine (triazolam 0.25 mg) hypnotic. The groups compared were patients with insomnia and disturbed sleep, insomnia and normal sle...

journal_title：Psychopharmacology

authors： Roehrs T,Merlotti L,Zorick F,Roth T

更新日期：1992-01-01 00:00:00

abstract：RATIONALE:Demonstrations of associative tolerance to the analgesic effects of morphine, not confounded by practice or novelty effects, have been restricted to the tail-flick and flinch-jump tests. OBJECTIVES:Experiment 1 investigated whether associative tolerance would be found on two other nociceptive assessment meth...

journal_title：Psychopharmacology

authors： Cepeda-Benito A,Tiffany ST,Cox LS

更新日期：1999-08-01 00:00:00

abstract：:This study compared the efficacy of buprenorphine to methadone for decreasing cocaine use in patients with combined opioid and cocaine use. Participants (n = 51) were enrolled in a 26-week treatment program and randomly assigned to either buprenorphine or methadone. Dosing was double-blind and double-dummy. Patients w...

journal_title：Psychopharmacology

authors： Strain EC,Stitzer ML,Liebson IA,Bigelow GE

更新日期：1994-12-01 00:00:00

abstract：INTRODUCTION:A growing number of studies have found evidence that anxiety and depressive disorders are associated with atypical amygdala hyperactivation, which decreases with effective treatment. Interest has emerged in this phenomenon as a possible biological marker for individuals who are likely to benefit from tailo...

journal_title：Psychopharmacology

authors： McClure EB,Adler A,Monk CS,Cameron J,Smith S,Nelson EE,Leibenluft E,Ernst M,Pine DS

更新日期：2007-03-01 00:00:00

abstract：RATIONALE:Increasing concomitant abuse of cocaine and morphine-like opioids has prompted a number of studies aimed at understanding how these drugs interact. OBJECTIVE:The present study was designed to determine if variations in opioid pretreatment time would affect how mu opioid agonists interact with cocaine. METHO...

journal_title：Psychopharmacology

authors： Green-Jordan K,Warren L,Kantak KM

更新日期：2001-08-01 00:00:00

abstract：INTRODUCTION:Gelsemine is a natural alkaloid extracted from Gelsemium elegans Benth., a traditional Chinese medicinal herb. Gelsemine has been shown to penetrate the brain, and could produce neurological activities, such as anxiolytic and neuralgia-alleviating effects, suggesting that this natural compound might be use...

journal_title：Psychopharmacology

authors： Chen L,Pan H,Bai Y,Li H,Yang W,Lin ZX,Cui W,Xian YF

更新日期：2020-07-01 00:00:00

abstract：:The alcohol-preferring AA rats have previously been shown to drink more solution containing the opioid etonitazene than the alcohol-avoiding ANA rats. The present experiments were initiated to see whether the line difference in opioid and alcohol intake would persist if an intravenous (i.v.) route of self-administrati...

journal_title：Psychopharmacology

authors： Hyytiä P,Schulteis G,Koob GF

更新日期：1996-06-01 00:00:00

abstract：RATIONALE:Synthesis of ligands inactive or with low activity at α₁ GABA(A) receptors has become the key concept for development of novel, more tolerable benzodiazepine (BZ)-like drugs. WYS8, a remarkably (105 times) α₁-subtype selective partial positive modulator, may serve as a pharmacological tool for refining the ro...

journal_title：Psychopharmacology

authors： Joksimović S,Varagic Z,Kovačević J,Van Linn M,Milić M,Rallapalli S,Timić T,Sieghart W,Cook JM,Savić MM

更新日期：2013-11-01 00:00:00

abstract：:A group of 14 schizophrenics who remained symptomatic after neuroleptic treatment received either 0.02 mcg/kg CCK-8 or saline placebo intravenously. Thereafter, 13 received the alternative infusion as a crossover treatment. A second group of 16 such patients received 0.04 mcg/kg CCK-8 or saline intravenously and, ther...

journal_title：Psychopharmacology

authors： Peselow E,Angrist B,Sudilovsky A,Corwin J,Siekierski J,Trent F,Rotrosen J

更新日期：1987-01-01 00:00:00

abstract：:The ability of delta 9-tetrahydrocannabinol (THC), cannabinol (CBN), cannabidiol (CBD), 11-OH THC and 8 alpha, 11-diOH THC to antagonise the abdominal constriction response in the mouse induced by formic acid, phenylquinone, 5-hydroxytryptamine, prostaglandin E1 (PGE1) and bradykinin was tested. THC was an effective a...

journal_title：Psychopharmacology

authors： Sanders J,Jackson DM,Starmer GA

更新日期：1979-03-28 00:00:00

abstract：:EEG measures have been shown to differ in human subjects who are at genetically increased risk for the development of alcoholism. In the present study, EEG was recorded in rats that were selectively bred for alcohol-preferring (P) and nonpreferring (NP) behaviors during an ethanol self-administration paradigm. In this...

journal_title：Psychopharmacology

authors： Robledo P,Lumeng L,Li TK,Ehlers CL

更新日期：1993-01-01 00:00:00

abstract：:Progabide inhibited male rat sexual behavior at a dose of 200 mg/kg. This dose had only modest effects on ambulatory activity and no effect at all on motor coordination as evaluated by a rotarod test. The GABAA antagonist bicuculline, at a dose of 1 mg/kg, blocked the effects of progabide on sex behavior. In contrast,...

journal_title：Psychopharmacology

authors： Agmo A,Paredes RG,Sierra L,Garcés I

更新日期：1997-01-01 00:00:00

abstract：:Experiments assessed the development of tolerance to morphine stimulus control during treatment with selected maintenance doses of morphine. Separate groups of rats were trained to discriminate saline and either 3.2 mg/kg or 5.6 mg/kg morphine under fixed-ratio schedules of food delivery. Dose-response functions for g...

journal_title：Psychopharmacology

authors： Young AM,Sannerud CA,Steigerwald ES,Doty MD,Lipinski WJ,Tetrick LE

更新日期：1990-01-01 00:00:00

abstract：RATIONALE:Salvinorin A, the primary psychoactive derivative of the hallucinogenic herb Salvia divinorum, is a potent and highly selective kappa-opioid receptor (KOR) agonist. Several recent studies, however, have suggested endocannabinoid system mediation of some of its effects. OBJECTIVES:This study represents a syst...

journal_title：Psychopharmacology

authors： Walentiny DM,Vann RE,Warner JA,King LS,Seltzman HH,Navarro HA,Twine CE Jr,Thomas BF,Gilliam AF,Gilmour BP,Carroll FI,Wiley JL

更新日期：2010-06-01 00:00:00

abstract：:This study describes specific behaviours in guinea-pigs after dopamine D-1 and D-2 receptor activation which differed to those described in other rodent species. Intraperitoneal (IP) administration of the dopamine D-2 receptor agonist quinpirole (1.5, 3 and 6 mg/kg) to guinea-pigs dose-dependently initiated locomotor ...

journal_title：Psychopharmacology

authors： Brent PJ

更新日期：1991-01-01 00:00:00

abstract：:The concurrent influence of dopaminergic, sigma and muscarinic neurotransmitter systems in mediating cocaine-induced lethality is predicted by previous receptor binding results from our laboratories. The present results demonstrate that pharmacological manipulations of these predicted neurotransmitter systems alter th...

journal_title：Psychopharmacology

authors： Ritz MC,George FR

更新日期：1997-02-01 00:00:00

abstract：RATIONALE:Memories can return to a labile state and become amenable to modification by pharmacological and behavioral manipulations after retrieval. This process may reduce the impact of aversive memories and provide a promising therapeutic technique for the treatment of anxiety disorders. A growing body of evidence su...

journal_title：Psychopharmacology

authors： Hu J,Wang Z,Feng X,Long C,Schiller D

更新日期：2019-01-01 00:00:00

abstract：:There have been a number of claims that high-dose administration of cocaine to rats leads to neurotoxic effects on dopamine neurons. In this study possible neurotoxic effects on monoamine neurons were examined by measuring the effects of cocaine (35 mg/kg daily for 10 days) on the binding of radioligands to uptake sit...

journal_title：Psychopharmacology

authors： Benmansour S,Tejani-Butt SM,Hauptmann M,Brunswick DJ

更新日期：1992-01-01 00:00:00

abstract：:Adult rats that were gestationally exposed to cocaine and control offspring were examined for their sensitivity to challenge doses of cocaine. Offspring were derived from Sprague-Dawley dams that had received subcutaneous injections of 40 mg/kg per 3 cc cocaine hydrochloride daily on gestational days 8-20, pair-fed da...

journal_title：Psychopharmacology

authors： Heyser CJ,Rajachandran L,Spear NE,Spear LP

更新日期：1994-09-01 00:00:00

abstract：RATIONALE:Rolipram, an inhibitor of cyclic AMP phosphodiesterase (PDE4) produces discriminative stimulus effects in rats. These effects may be related to a wide range of central nervous system effects described previously. OBJECTIVE:The purposes of the present study were to: (i) assess the specificity of the discrimin...

journal_title：Psychopharmacology

authors： Makhay MM,Houslay MD,O'Donnell JM

更新日期：2001-11-01 00:00:00

abstract：:Recent studies suggest that glucose enhances memory in rodents and humans. The present experiment investigated the effects of glucose on memory performance and blood glucose changes in young adults (19-25 years). Subjects ingested (300 ml beverage) three doses of glucose (0, 30, 100 g) in a random, double-blind, tripl...

journal_title：Psychopharmacology

authors： Azari NP

更新日期：1991-01-01 00:00:00

abstract：:Two experiments were conducted to test the hypothesis that tolerance to the hypothermic effect of ethanol fails to develop if rats are denied the unconditional stimulus represented by hypothermia. In both experiments, rats were injected with either ethanol (1.9 or 2.5 g/kg) or saline and given microwave hyperthermia (...

journal_title：Psychopharmacology

authors： Hjeresen DL,Reed DR,Woods SC

更新日期：1986-01-01 00:00:00

abstract：RATIONALE:The ability of nicotine to induce dependence (result in a withdrawal syndrome) is typically thought to require long-term, daily smoking. Emerging evidence suggests that symptoms of nicotine withdrawal may occur following only a few cigarettes. Whether acute exposure to nicotine can induce dependence in animal...

journal_title：Psychopharmacology

authors： Harris AC,Manbeck KE,Schmidt CE,Shelley D

更新日期：2013-01-01 00:00:00

abstract：:Physostigmine (1.0mg) or placebo were administered intravenously over 1-h period to seven male normal volunteers beginning 35 min after sleep onset. The results indicate that physostigmine induced the onset of REM sleep but did not significantly alter the duration of individual REM sleep periods. Physostigmine signifi...

journal_title：Psychopharmacology

authors： Gillin JC,Sitaram N,Mendelson WB,Wyatt RJ

更新日期：1978-06-15 00:00:00

abstract：:In previous research, sensitization of stereotypy induced by injections of 2.5 mg/kg amphetamine did not interfere with subsequent tolerance development to the hypophagic effect of 2 mg/kg. This study examined the effect of a higher sensitizing dose. Rats given intermittent injections of 5 mg/kg amphetamine and then c...

journal_title：Psychopharmacology

authors： Hughes KM,Popi L,Wolgin DL

更新日期：1998-12-01 00:00:00

abstract：RATIONALE:Impulsivity is related to greater risk of nicotine dependence, perhaps by enhancing sensitivity to nicotine's reinforcing and rewarding effects during initial smoking experiences. OBJECTIVE:We examined the influence of impulsivity characteristics on acute sensitivity to nicotine reward, reinforcement, and ot...

journal_title：Psychopharmacology

authors： Perkins KA,Lerman C,Coddington SB,Jetton C,Karelitz JL,Scott JA,Wilson AS

更新日期：2008-11-01 00:00:00