In vivo muscarinic cholinergic mediated effects of Lu 25-109, a M1 agonist and M2/M3 antagonist in vitro.

abstract：:A number of clinically used benzodiazepines were tested for their effectiveness in blocking muscimol-induced myoclonic jerks in mice. Their ED50 values were determined from their dose-response curves. These data gave the following relative potencies with respect to diazepam: diazepam = 1, medazepam = 0.24, oxazepam = ...

journal_title：Psychopharmacology

authors： Menon MK,Vivonia CA,Haddox VG

更新日期：1981-01-01 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：RATIONAL:Prefrontal cortex (PFC) and dorsal striatum are part of the neural circuit critical for executive attention. The relationship between 5-HT and aspects of attention and executive control is complex depending on experimental conditions and the level of activation of different 5-HT receptors within the nuclei of ...

journal_title：Psychopharmacology

authors： Agnoli L,Carli M

更新日期：2012-01-01 00:00:00

abstract：RATIONALE:Serotonin 5-HT2A and 5-HT2C receptors are thought to be the primary pharmacological mechanisms for serotonin-mediated hallucinogenic drugs, but recently there has been interest in metabotropic glutamate (mGluR2) receptors as contributors to the mechanism of hallucinogens. OBJECTIVE:The present study assesses...

journal_title：Psychopharmacology

authors： Carbonaro TM,Eshleman AJ,Forster MJ,Cheng K,Rice KC,Gatch MB

更新日期：2015-01-01 00:00:00

abstract：:The predatory behavior of ferrets (Putorius putorius furo L.) consists mainly of instinctive behavioral patterns that are elicited by simple external stimuli. For the ferret, the time needed to catch and kill rats depends on the size of the rats in relation to that of the ferret. Killing success decreases with a relat...

journal_title：Psychopharmacology

authors： Apfelbach R

更新日期：1978-10-31 00:00:00

abstract：RATIONALE:Like other monoamine releasers such as D-amphetamine, chronic treatment with phenmetrazine can attenuate cocaine self-administration in monkeys. OBJECTIVES:The present studies extended this finding to rodents and to cocaine-primed reinstatement, a putative laboratory animal model of relapse. METHODS:In expe...

journal_title：Psychopharmacology

authors： Czoty PW,Tran P,Thomas LN,Martin TJ,Grigg A,Blough BE,Beveridge TJ

更新日期：2015-07-01 00:00:00

abstract：:Red blood cell (RBC) glycine levels were examined in 27 bipolar patients, treated with lithium carbonate for a minimum of 8 months, who were either hypomanic, depressed, or euthymic in their mood. We found no difference in the RBC glycine or in the RBC: plasma glycine ratio between the hypomanic, depressed, or euthymi...

journal_title：Psychopharmacology

authors： Peselow ED,Deutsch SI,Stanley M,Banay-Schwartz M,Virgilio J,Fieve RR

更新日期：1982-01-01 00:00:00

abstract：RATIONALE AND OBJECTIVES:Addiction to psychostimulant methamphetamine (METH) remains a major public health problem in the world. Animal models that use METH self-administration incorporate many features of human drug-taking behavior and are very helpful in elucidating mechanisms underlying METH addiction. These models ...

journal_title：Psychopharmacology

authors： Krasnova IN,Justinova Z,Cadet JL

更新日期：2016-05-01 00:00:00

abstract：:Benztropine mesylate (Cogentin) and physostigmine salicylate (Antilirium), were tested for changes in tongue protrusions, retrusions, and swallowing acts in rats anesthetized with a 100 mg/kg IM injection of ketamine hydrochloride. These ketamine-induced linguopharyngeal events were monitored by means of a force displ...

journal_title：Psychopharmacology

authors： Marco LA,Joshi RS,Brown C,Aldes LD,Chronister RB

更新日期：1988-01-01 00:00:00

abstract：:In a randomised, double-blind, parallel groups study, 40 patients referred for surgical removal of impacted third molars received either (a) temazepam 40 mg orally followed at 35 min by IV saline or (b) oral placebo followed by IV diazepam 10 mg (Diazemuls). Patients were divided into High-Anxious and Low-Anxious grou...

journal_title：Psychopharmacology

authors： O'Boyte CA,Harris D,Barry H,Cullen JH

更新日期：1986-01-01 00:00:00

abstract：:The development of a differential tolerance to morphine was investigated with respect to the mean effective dose, the threshold dose of tolerance, the degree of tolerance after a fixed dose, and the speed of tolerance loss. The mean effective doses, the threshold doses of tolerance, and the degree of tolerance differe...

journal_title：Psychopharmacology

authors： Fernandes M,Kluwe S,Coper H

更新日期：1982-01-01 00:00:00

abstract：RATIONALE:Neuropeptide Y (NPY) is implicated in the pathophysiology of affective illness. Multiple receptor subtypes (Y1R, Y2R, and Y5R) have been suggested to contribute to NPY's effects on rodent anxiety and depression-related behaviors. OBJECTIVES:To further elucidate the role of Y1R in (1) NPY's anxiolytic-like ef...

journal_title：Psychopharmacology

authors： Karlsson RM,Choe JS,Cameron HA,Thorsell A,Crawley JN,Holmes A,Heilig M

更新日期：2008-01-01 00:00:00

abstract：RATIONALE:Alcohol intoxication produces effects that can impair judgment and increase engagement in risky behaviors, including alcohol-impaired driving (AID). Real-world AID decisions are informed by contextual circumstances and judgments of associated risk. How individuals vary in their AID decision-making across cont...

journal_title：Psychopharmacology

authors： Motschman CA,Warner OM,Wycoff AM,Davis-Stober CP,McCarthy DM

更新日期：2020-12-01 00:00:00

abstract：RATIONALE:A previous study found that a 10-min bout of moderate intensity exercise reduced cigarette withdrawal symptoms and desire to smoke in sedentary smokers but the effect may have been due to participants focusing attention on physical activity rather than the activity itself. OBJECTIVES:This study examined the ...

journal_title：Psychopharmacology

authors： Daniel J,Cropley M,Ussher M,West R

更新日期：2004-07-01 00:00:00

abstract：:The effects of single and long-term haloperidol administration on rat open field behavior was studied. Withdrawal from long-term haloperidol treatment induced a significant increase in all parameters of activity recorded, except rearing. There was a direct relationship between the impairment of motor function induced ...

journal_title：Psychopharmacology

authors： Bernardi MM,De Souza H,Palermo Neto J

更新日期：1981-01-01 00:00:00

abstract：RATIONALE:Thousands of adolescents start smoking daily but information on the effects of tobacco exposure on this age group is scarce. Moreover, the available animal models rely on the effects of nicotine, neglecting other neuroactive components of tobacco. OBJECTIVES:We investigated the effects of exposure of adolesc...

journal_title：Psychopharmacology

authors： Abreu-Villaça Y,Filgueiras CC,Correa-Santos M,Cavina CC,Naiff VF,Krahe TE,Manhães AC,Ribeiro-Carvalho A

更新日期：2015-05-01 00:00:00

abstract：:The pharmacokinetic and pharmacodynamic effects of concomitant administration of alprazolam and fluoxetine were studied in this double-blind parallel study in 80 healthy, male volunteers. Subjects were randomly assigned to one of four treatment groups. Drug treatments consisted of 4-day regimens of 1 mg alprazolam fou...

journal_title：Psychopharmacology

authors： Lasher TA,Fleishaker JC,Steenwyk RC,Antal EJ

更新日期：1991-01-01 00:00:00

abstract：:NCQ 298 ((S)-3-iodo-N-[(l-ethyl-2-pyrrolidinyl)methyl]-5,6- dimethoxysalicylamide) has an iodine substituent. We have labelled NCQ 298 with 123I and 125I, and used the radioligands as tracers in receptor studies in vitro, in vivo in autoradiography and in SPECT studies on Cynomolgus monkeys. [125I]NCQ 298 bound in vit...

journal_title：Psychopharmacology

authors： Hall H,Högberg T,Halldin C,Köhler C,Ström P,Ross SB,Larsson SA,Farde L

更新日期：1991-01-01 00:00:00

abstract：:Seven neuroleptic-free schizophrenic patients received bromocriptine and eight schizophrenic patients received CF 25-397, both ergot derivatives with dopamine agonist activity. Psychosis failed to improve in response to either drug at the relatively low doses administered. Unlike the antipsychotic property of apomorph...

journal_title：Psychopharmacology

authors： Tamminga CA,Schaffer MH

更新日期：1979-01-01 00:00:00

abstract：RATIONALE:To date, the literature on the intravenous self-administration of cocaine by laboratory animals lacks a compelling demonstration of an ascending limb to the dose-response function. It has been argued that previous demonstrations of an ascending limb are confounded by the extinction process. OBJECTIVE:The obj...

journal_title：Psychopharmacology

authors： Flory GS,Woods JH

更新日期：2003-02-01 00:00:00

abstract：RATIONALE:Exposure to a single session of uncontrollable inescapable shock (IS), but not to identical controllable escapable shock, produces a potentiation of morphine's rewarding properties that is unusual in that the stressor can be given a number of days before the drug administration in an environment quite differe...

journal_title：Psychopharmacology

authors： Will MJ,Der-Avakian A,Bland ST,Grahn RE,Hammack SE,Sparks PD,Pepin JL,Watkins LR,Maier SF

更新日期：2004-01-01 00:00:00

abstract：RATIONALE:Acute physical dependence refers to the withdrawal syndrome precipitated by an opioid antagonist administered several hours after either a single dose or a short-term infusion of an opioid agonist. OBJECTIVES:We examined the mechanism of nicotine-induced attenuation of naloxone-precipitated withdrawal syndro...

journal_title：Psychopharmacology

authors： Araki H,Kawakami KY,Jin C,Suemaru K,Kitamura Y,Nagata M,Futagami K,Shibata K,Kawasaki H,Gomita Y

更新日期：2004-02-01 00:00:00

abstract：RATIONALE:Serotonin (5-HT) plays a key role in different aspects of value-based decision-making. A recent framework proposed that tonic 5-HT (together with dopamine, DA) codes future average reward expectations, providing a baseline against which possible choice outcomes are compared to guide decision-making. OBJECTIV...

journal_title：Psychopharmacology

authors： Neukam PT,Kroemer NB,Deza Araujo YI,Hellrung L,Pooseh S,Rietschel M,Witt SH,Schwarzenbolz U,Henle T,Smolka MN

更新日期：2018-07-01 00:00:00

abstract：:The opioid antagonist effects of systemically administered nor-binaltorphimine (nor-BNI) were evaluated against the kappa agonists CI-977, U69,593, U50,488, ethylketocyclazocine (EKC), Mr2034 and bremazocine, the mu agonist morphine and the alkaloid delta agonist BW-373U86 in the acetic acid-induced writhing assay in ...

journal_title：Psychopharmacology

authors： Broadbear JH,Negus SS,Butelman ER,de Costa BR,Woods JH

更新日期：1994-07-01 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

authors： Srikumar BN,Raju TR,Shankaranarayana Rao BS

更新日期：2007-08-01 00:00:00

abstract：:Adult hooded rats exposed to a repeated maternal separation procedure during the neonatal period showed a blunted expression of locomotor hyperactivity conditioned to the presentation of the daily food ration. We have demonstrated that the expression of food-conditioned anticipatory hyperactivity is sensitive to the r...

journal_title：Psychopharmacology

authors： Matthews K,Hall FS,Wilkinson LS,Robbins TW

更新日期：1996-07-01 00:00:00

abstract：:Mice were trained on a one-trial inhibitory avoidance task and given immediate post-training intraperitoneal injections of cocaine (0.03-1.00 mg/kg). On a retention test 24 h later, the retention latencies of mice given the 0.10 mg/kg dose were significantly higher than those of the controls. The effect of cocaine on ...

journal_title：Psychopharmacology

authors： Introini-Collison IB,McGaugh JL

更新日期：1989-01-01 00:00:00

abstract：RATIONALE:The emergence of the consumption of highly potent synthetic cannabinoid receptor agonists (spice drugs) that produce important neurological symptoms has prompted the research on the consequences of acute and chronic use of these new psychoactive substances. Most studies on cannabinoid dependence have been per...

journal_title：Psychopharmacology

authors： Serrano A,Vadas E,Ferrer B,Bilbao A,Granado N,Suárez J,Pavon FJ,Moratalla R,Rodríguez de Fonseca F

更新日期：2021-02-01 00:00:00

abstract：:Rats treated weekly with cumulative doses (1-100 mg/kg, IP) of naltrexone develop an enhanced sensitivity to the operant response-rate decreasing effect of naltrexone. In the present experiment the pharmacological specificity of that enhanced sensitivity was determined by testing a variety of drugs for cross-sensitivi...

journal_title：Psychopharmacology

authors： Schindler CW,Goldberg SR,Katz JL

更新日期：1993-01-01 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