Abstract:
RATIONALE:Recent studies have shown that pharmacological inhibition of the 12-lipoxygenase pathway selectively blocks opioid inhibition of GABAergic synaptic currents. A similar mechanism has been shown for the regulation of glutamate release in the ventral tegmental area (VTA) during acute withdrawal from morphine, although the functional significance of these effects in vivo are not known. OBJECTIVES:We have utilized mice with a disruption of the "leukocyte-type" 12-lipoxygenase gene (12-LO-/- mice) to examine a variety of general behavioral responses as well as several specific responses to morphine and cocaine. METHODS:Behavioral responses to morphine include sensitivity to thermal stimuli and withdrawal from chronic morphine treatment. Responses to cocaine were measured through locomotor activity. RESULTS:General behavioral responses in 12-LO-/- mice are not different from their wild-type controls. However, these mutant mice showed enhanced morphine-induced analgesia. However, this effect is eliminated following chronic morphine treatment. In addition, 12-LO-/- mice demonstrated enhanced somatic signs of opiate withdrawal relative to littermate controls. Lastly, cocaine-mediated increases in locomotor activity was augmented acutely but not chronically in 12-LO-/- mice. CONCLUSIONS:Together, these results suggest a role for metabolites of arachidonic acid metabolism in morphine- and cocaine-induced behavioral responses and may reflect a utilization of this pathway following acute but not chronic drug administration.
journal_name
Psychopharmacology (Berl)journal_title
Psychopharmacologyauthors
Walters CL,Wang BC,Godfrey M,Sun D,Funk CD,Blendy JAdoi
10.1007/s00213-003-1526-7subject
Has Abstractpub_date
2003-11-01 00:00:00pages
124-31issue
2eissn
0033-3158issn
1432-2072journal_volume
170pub_type
杂志文章abstract::The effects of diazepam (10 mg orally) on the responding of normal human volunteers was studied in a procedure that involved the maintenance of operant behavior by monetary reinforcement and its suppression by monetary loss (punishment). Diazepam produced an antipunishment effect as shown by an increase in behavior su...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00426457
更新日期:1981-01-01 00:00:00
abstract:RATIONALE:Caffeine is commonly believed to offset the acute effects of alcohol, but some evidence suggests that cognitive processes remain impaired when caffeine and alcohol are coadministered. OBJECTIVES:No previous study has investigated the separate and joint effects of alcohol and caffeine on conflict monitoring a...
journal_title:Psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00213-016-4208-y
更新日期:2016-04-01 00:00:00
abstract:RATIONALE:Somatostatin and its receptors have been localized in brain nuclei implicated in motor control, such as the striatum, nucleus accumbens, ventral pallidum, and globus pallidus (GP). OBJECTIVES:The objective of this study was to investigate the role of somatostatin receptors (sst(1,2,4)) in the GP on dopamine ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-008-1305-6
更新日期:2008-12-01 00:00:00
abstract::The anti-withdrawal effect of clonidine was studied using quasi-morphine abstinence behaviour induced by dipropylacetate (DPA) in naive rats. Clonidine potently suppressed body shakes and locomotor activity (ID50 30 and 40 micrograms/kg IP respectively). Phenoxybenzamine and prazosine did not antagonize the anti-withd...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00427276
更新日期:1983-01-01 00:00:00
abstract:RATIONALE:Human behavioral pharmacology studies can examine how medications that target different neurotransmitter systems influence different aspects of smoking. Naltrexone and bupropion have been shown to alter ad lib smoking behavior; however, medication effects on nicotine reward in a cigarette choice paradigm have...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00213-004-2136-8
更新日期:2005-06-01 00:00:00
abstract:INTRODUCTION:The objective of this study was to examine age-, hormone-, and sex-dependent differences to the behavioral effects of nicotine using place-conditioning procedures in female rats. METHODS:Animals received nicotine in their initially non-preferred side and saline on alternate days in their initially preferr...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-009-1607-3
更新日期:2009-10-01 00:00:00
abstract::Human CSF cyclic AMP and cyclic GMP have been measured as possible indicators of activity of central neurotransmitter-sensitive adenylate or guanylate cyclase. In an attempt to help to identify the specific neurotransmitter systems of origin of human CSF cyclic AMP and GMP, we studied Parkinson patients with and with...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00427396
更新日期:1978-07-19 00:00:00
abstract::Two behaviors related to nonreward (omission of water in an enclosure where the rats were habituated to drink) were studied. The time spent licking the bottles during water omission and the time spent drinking during a subsequent 5-min drinking session (water available) were recorded. The drinking session was performe...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00428038
更新日期:1978-09-15 00:00:00
abstract:RATIONALE:Higher rates of delay discounting, or impulsive choice, may be related to relapse during abstinence reinforcement interventions for cigarette smoking, and a transdermal nicotine patch may attenuate delay discounting. OBJECTIVE:The objectives of this study are to assess the relation between delay discounting ...
journal_title:Psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00213-006-0627-5
更新日期:2007-03-01 00:00:00
abstract:RATIONALE:Beneficial effects of nicotine on cognitive processes including attention have potential therapeutic uses and have been proposed as incentives for tobacco smoking. OBJECTIVES:To establish task conditions under which the effects of nicotine on attention are obtained reliably and to characterise such effects f...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-002-1005-6
更新日期:2002-07-01 00:00:00
abstract:RATIONALE/OBJECTIVES:Previous research has shown that ecstasy users are impaired in thinking and reasoning. The present study sought to explore the possibility that syllogistic reasoning errors in ecstasy users were due to an inability to construct a model of the premises due to working memory limitations. METHODS:Twe...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-005-0006-7
更新日期:2005-09-01 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: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::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
pub_type: 杂志文章
doi:10.1007/BF02801979
更新日期:1992-01-01 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
pub_type: 杂志文章
doi:10.1007/BF00427754
更新日期:1978-10-31 00:00:00
abstract::Oral administration of the serotonin (5-HT) precursor L-5-hydroxytryptophan (5-HTP), 200 mg, significantly increased plasma cortisol levels in man. L-5-HTP had no significant effect on the plasma prolactin levels. A borderline effect of 5-HTP on plasma ACTH levels was found. Pretreatment with the 5-HT2/5-HT1c antagoni...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02244213
更新日期:1991-01-01 00:00:00
abstract::Oral movements (OMs) in rats administered chronic haloperidol (HAL) were quantified simultaneously by a human observer and via a computerized video analysis system which monitored the distance between the upper and low lips using TV images. The human observer data indicated that during HAL administration the total dur...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00215492
更新日期:1987-01-01 00:00:00
abstract::Peak saccadic eye movement velocity (SEV) and average smooth pursuit gain (SP) are reduced in a dose-dependent manner by diazepam and provide reliable, quantitative measures of benzodiazepine agonist effects. To evaluate the specificity of these eye movement effects for agents acting at the central GABA-benzodiazepine...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF02245956
更新日期:1995-04-01 00:00:00
abstract::Pigeons trained under a two-key drug discrimination procedure eventually learned to discriminate 5 mg/kg phenytoin from saline injections. When 1.25-20 mg/kg doses of phenytoin were substituted for the training dose, the percentage of responses directed to the phenytoin-appropriate key varied directly with dose. Chlor...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00433021
更新日期:1983-01-01 00:00:00
abstract::In the rat, the antimuscarinics atropine and scopolamine failed to block the reduction in pentobarbital-induced sleep time produced by either thyrotropin-releasing hormone (TRH) or MK-771 (a TRH analog). Previous reports have indicated that the marked analeptic effect produced by TRH is antagonized by such agents. It ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00431749
更新日期:1981-01-01 00:00:00
abstract:RATIONALE:Morphine and buprenorphine have analgesic and anxiolytic-like properties. While their analgesic effects have been well characterized, their anxiolytic-like properties have not. OBJECTIVES:Effects of acute morphine and buprenorphine on the expression of acoustic fear-potentiated startle (FPS) and naloxone pre...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-008-1112-0
更新日期:2008-06-01 00:00:00
abstract::Voluntary consumption of alcohol by rats (i.e. in the absence of food or water deprivation, sweetening of the alcohol solution, etc.) that results in the attainment of behaviorally significant or pharmacologically detectable blood alcohol levels (BALs) has been difficult to demonstrate. In this study, we showed that f...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00177925
更新日期:1987-01-01 00:00:00
abstract::The present experiment examined effects of nicotine on body weight of male and female rats when Oreo cookies, potato chips, laboratory chow, and water were available. Body weight and eating behavior were measured for 17-day periods before, during, and after nicotine or saline administration. There was an inverse relat...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00212851
更新日期:1988-01-01 00:00:00
abstract:RATIONALE:Animal models aimed to mimic mania have in common the lack of genuine affective parameters. Although rodent amphetamine-induced hyperlocomotion is a frequently used behavioral model of mania, locomotor activity is a rather unspecific target for developing new pharmacological therapies, and does not necessaril...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-013-3413-1
更新日期:2014-07-01 00:00:00
abstract::In the forced swimming-induced immobility (despair) test model, adenosine, and 2-chloroadenosine treatment prolonged the immobilization period in mice. Dipyridamole, which is known to inhibit adenosine uptake, potentiated the adenosine effect. The purinoceptor antagonists caffeine and theophylline blocked purine nucle...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00429665
更新日期:1985-01-01 00:00:00
abstract::It has been shown that pretreatment with dopamine (DA) receptor blockers disrupts the effect of intravenously (IV) and intracerebrally (ICV), but not intraperitoneally (IP) administered cocaine on place preference conditioning (PPC). The present study was undertaken to further evaluate possible differences between IV ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00735892
更新日期:1988-01-01 00:00:00
abstract:RATIONALE:Despite consistent evidence of the familiality of substance misuse, the mechanisms by which family history (FH) increases the risk of addiction are not well understood. One behavioral trait that may mediate the risk for substance use and addiction is delay discounting (DD), which characterizes an individual's...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-015-4074-z
更新日期:2016-01-01 00:00:00
abstract::Keypecking in one group of pigeons was maintained under schedules in which food was presented only when a specified number of responses was followed by a 30-s pause without a response. d-Amphetamine and pentobarbital increased low rates of responding (and, thus, decreased food presentation) only after initial injectio...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00426485
更新日期:1977-07-18 00:00:00
abstract:RATIONALE:Major depression is a chronic disabling disorder, often preceded by stress. Despite emerging clinical interest in mechanisms perpetuating episodes of depression and/or establishing increased vulnerability for relapse, little attention has been paid to address these aspects in experimental models. Here, we stu...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-010-1835-6
更新日期:2010-06-01 00:00:00
abstract:BACKGROUND:Soda manufacturers claim that caffeine is added to soda as a flavor enhancer, but many researchers have speculated that caffeine is added to increase the hedonic and reinforcing properties of the soda. Studies in adults have demonstrated that caffeine can condition flavor preferences when added to novel-flav...
journal_title:Psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00213-012-2684-2
更新日期:2012-09-01 00:00:00