Abstract:
RATIONALE:Dependence on both alcohol and cocaine is a widespread example of polydrug abuse/dependence. It has been hypothesized that ethanol reward is mediated via increased dopaminergic neurotransmission in mesolimbic striatum, as is the case for cocaine. However, little is known about the neurobiology of ethanol in primates, or how the effects of ethanol compare to those of cocaine across individual animals. OBJECTIVES:To determine in animals with a history of cocaine exposure whether there is a dopaminergic impact of ethanol in non-human primates, and if so, whether the magnitude of that effect correlates with the dopaminergic effect of cocaine across individuals. METHODS:Microdialysis studies were conducted in rhesus monkeys previously trained to self-administer cocaine. The dopaminergic impact of cocaine had been determined in those animals during cocaine self-administration sessions. Probes were placed in the ventral mesolimbic and associational central striatum. Ethanol was administered non-contingently by a slow intravenous infusion at doses of 0.5 g/kg (administered over 10 min) and 1.0 g/kg (administered over 20 min). RESULTS:The mean dopaminergic response to ethanol in four animals (with 2-4 trials in each animal at each dose) indicated a small but significant increase in extracellular dopamine at each dose (12% above baseline at 0.5 g/kg, 22% above baseline at 1.0 g/kg). Examining the responses across individual animals indicated substantial variability, in that two of the four animals showed no increase at either dose. Across individuals, regression analysis of cocaine-induced changes in dopamine with 1.0 g/kg ethanol-induced changes indicated a positive correlation between the drug effects, with a trend in this direction observed with the 0.5-g/kg dose of ethanol. CONCLUSIONS:These results provide support for the ability of ethanol to elevate extracellular dopamine in the mesolimbic striatum, though with a modest effect size and variability among individuals. Further, they suggest that some common mechanism influences the effects of ethanol and cocaine on dopaminergic output despite seemingly unrelated pharmacological mechanisms of action.
journal_name
Psychopharmacology (Berl)journal_title
Psychopharmacologyauthors
Bradberry CWdoi
10.1007/s00213-002-1233-9subject
Has Abstractpub_date
2002-12-01 00:00:00pages
67-76issue
1eissn
0033-3158issn
1432-2072journal_volume
165pub_type
杂志文章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:Reduced serotonin neurotransmission is implicated in disorders of impulse control, but the involvement of serotonin in inhibitory processes in healthy human subjects remains unclear. OBJECTIVES:To investigate the effects of an acute manipulation of serotonin and genotype at a functional polymorphism in a gen...
journal_title:Psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00213-005-0104-6
更新日期:2005-11-01 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
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1007/s002130050603
更新日期:1998-05-01 00:00:00
abstract:INTRODUCTION:Prior activation of the kappa opioid system by repeated stress or agonist administration has been previously shown to potentiate the rewarding properties of subsequently administered cocaine. In the present study, intermittent and uncontrollable footshock, a single session of forced swim, or acute administ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-008-1122-y
更新日期:2008-09-01 00:00:00
abstract:RATIONALE:Decision-making is a complex cognitive process that is mediated, in part, by subregions of the medial prefrontal cortex (PFC). Decision-making is impaired in a number of psychiatric conditions including schizophrenia. Notably, people with schizophrenia exhibit reductions in GABA function in the same PFC areas...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-014-3816-7
更新日期:2015-05-01 00:00:00
abstract:RATIONALE:Nicotine displays rewarding and aversive effects, and while dopamine has been linked with nicotine's reward, the neurotransmitter(s) involved with aversion remains speculative. The kappa-dynorphinergic system has been associated with negative motivational and affective states, and whether dynorphin (Dyn) cont...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-008-1315-4
更新日期:2009-01-01 00:00:00
abstract:AIM:Excess consumption of alcohol leads to impaired cognition and decision making; hence, alcohol-containing products and advertising contain warning messages about the adverse effects of excess drinking. However, there is a need to understand how alcohol influences the processing of advisory messages. METHOD:The curr...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00213-009-1762-6
更新日期:2010-03-01 00:00:00
abstract:RATIONALE:The nicotine delivery rate is a key feature of tobacco product design, yet there have been limited human studies examining the effects of nicotine as a function of delivery rate. OBJECTIVE:We developed an intravenous nicotine infusion protocol to evaluate differential effects of nicotine delivery rate on sub...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-020-05463-6
更新日期:2020-05-01 00:00:00
abstract:BACKGROUND:Opioid neurotransmission mediates hedonic value of sweet tastants; their intake may be exaggerated by the consumption of exogenous opioids (e.g., opioid dependence). Sweet Taste Test (STT) is a validated quantitative instrument assessing taste perception and hedonic features of sugar (sucrose) using a random...
journal_title:Psychopharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00213-011-2503-1
更新日期:2012-04-01 00:00:00
abstract::Three adult baboons were trained using a psychophysical procedure to discriminate between different synthetic vowel sounds [symbol: see text]. Baboons pressed and held a lever down to produce a pulsed train of a single reference vowel that served as the standard stimulus. Animals were trained to release the lever only...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02246089
更新日期:1995-11-01 00:00:00
abstract::Rats were made hyperphagic by 6-hydroxydopamine (6-OHDA) injected bilaterally into the ventral midbrain; then they were restricted to a 6 h/day feeding schedule and tested for appetite suppression with amphetamine and fenfluramine in randomized order. Amphetamine anorexia was diminished while fenfluramine anorexia was...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00426393
更新日期:1984-01-01 00:00:00
abstract:RATIONALE:It has recently been reported that chronic nicotine administration at subconvulsive doses causes seizures, a phenomenon referred to as kindling. Evidence points to the involvement of oxidative stress in pharmacological and electrical kindling, sex is known to influence the brain's response to nicotine. OBJEC...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-012-2799-5
更新日期:2013-01-01 00:00:00
abstract::The authors review the literature regarding the pharmacokinetics of long-acting injectable neuroleptic drugs (LINS). There are important differences between LINS and oral neuroleptics that affect their pharmacokinetics. By avoiding first pass metabolism in gut and liver, LINS result in lower circulating concentrations...
journal_title:Psychopharmacology
pub_type: 杂志文章,评审
doi:10.1007/BF00441937
更新日期:1989-01-01 00:00:00
abstract::Dopamine (DA), injected unilaterally into rat forebrain after pretreatment with a monoamine oxidase inhibitor, equipotently induced locomotor arousal when placed in the nucleus accumbens septi (a limbic site) and contralateral deviation of the head when placed in the corpus striatum (an extrapyramidal target); testing...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02244285
更新日期:1991-01-01 00:00:00
abstract::The behavioral responses to separate and combined administration of the D1 agonist SKF-38393 and the D2 agonist quinpirole following acute dopamine (DA) depletion via alpha-methyl-p-tyrosine (AMPT) or AMPT/reserpine were examined in infant (10-day-old) and weanling (21-day-old) rat pups. At both ages, AMPT pretreatmen...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02244963
更新日期:1992-01-01 00:00:00
abstract::Depression in children is currently an area of considerable controversy, as is the use of potent psychopharmacologic agents in children. Since EEG sleep techniques have proven to be useful in understanding the mechanisms of depression in adults and in predicting their response to antidepressants, a pilot study employi...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF00432281
更新日期:1979-01-31 00:00:00
abstract:RATIONALE:Consumption of alcohol begins during late adolescence in a majority of humans, and the greatest drinking occurs at 18-25 years then decreases with age. OBJECTIVES:The present study measured the differences in ethanol intake in relation to age at the onset of ethanol access among nonhuman primates to control ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-013-3417-x
更新日期:2014-04-01 00:00:00
abstract:BACKGROUND:Stress is associated with cognitive and emotional dysfunction, and increases risk for a variety of psychological disorders, including depression and posttraumatic stress disorder. Prefrontal cortex is critical for executive function and emotion regulation, is a target for stress hormones, and is implicated i...
journal_title:Psychopharmacology
pub_type: 杂志文章,评审
doi:10.1007/s00213-018-5023-4
更新日期:2019-01-01 00:00:00
abstract::The present studies were undertaken to investigate the neuroactive steroidal modulation of feeding behavior and possible involvement of gamma-aminobutyric acid type-A (GABA-A) and mitochondrial diazepam binding inhibitor (DBI) receptors (MDR) in food-deprived male mice. Allopregnanolone (0.5-2 mg/kg), a neurosteroid, ...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130050635
更新日期:1998-06-01 00:00:00
abstract:RATIONALE:Available neurochemical probes that lower brain dopamine (DA) levels in man are limited by their tolerability and efficacy. For instance, the acute lowering of brain tyrosine is well tolerated, but only modestly lowers brain DA levels. Modification of tyrosine depletion to robustly lower DA levels would provi...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-013-2977-0
更新日期:2013-05-01 00:00:00
abstract:RATIONALE:Dopamine (DA) D2-like antagonists block several effects of cocaine, including its locomotor stimulant and interoceptive discriminative-stimulus effects. Because these compounds generally lack selectivity among the D2-like DA receptors, the specific roles of the subtypes remain unclear. OBJECTIVES:DA D2 recep...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-002-1142-y
更新日期:2002-08-01 00:00:00
abstract:RATIONALE:The administration of heroin has been shown to inhibit the induction of nitric oxide, a molecule known to play a critical role in immune function. Previous research has shown that this alteration can be conditioned to environmental stimuli that have been associated with drug administration. However, it remain...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-006-0673-z
更新日期:2007-05-01 00:00:00
abstract::The effect of the dopamine receptor antagonist haloperidol on the development of sensitization to ethanol-induced increases in locomotor activity was examined in DBA/2J mice. In Experiment 1, different groups of mice were given saline or ethanol (2 g/kg) immediately before each of four locomotor activity sessions (48-...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02245821
更新日期:1995-08-01 00:00:00
abstract::The performance of healthy volunteer subjects on an auditory latent inhibition (LI) paradigm was assessed following administration of a single oral dose of d-amphetamine or placebo. It was predicted that a low (5 mg), but not a high (10 mg), dose of d-amphetamine would disrupt LI. The prediction was supported with lef...
journal_title:Psychopharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF02245170
更新日期:1992-01-01 00:00:00
abstract:RATIONALE:Attentional bias for alcohol-related cues is associated with the motivation to drink alcohol, possibly because attentional bias increases craving. OBJECTIVES:We examined whether an experimentally induced attentional bias would influence subjective and behavioural indices of the motivation to drink. METHODS:...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-005-0202-5
更新日期:2005-12-01 00:00:00
abstract:RATIONALE:Cannabidiol is a non-psychoactive phytocannabinoid with great therapeutic potential in diverse psychiatric disorders; however, its antidepressant potential has been mainly ascertained in adult rats. OBJECTIVES:To compare the antidepressant-like response induced by cannabidiol in adolescent and adult rats and...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-020-05481-4
更新日期:2020-06-01 00:00:00
abstract:RATIONALE:Orexins A and B have recently been discovered and shown to be derived from preproorexin, primarily expressed in the rat hypothalamus. Orexin-A has been ascribed a number of in vivo functions in the rat after intracerebroventricular (ICV) administration, including hyperphagia, neuroendocrine modulation and, mo...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s002130000550
更新日期:2001-01-01 00:00:00
abstract::The effect of pretreatment with ritanserin, a potent and selective serotonin-S2 (5-HT2) receptor antagonist, on the prolactin (PRL) response to electroconvulsive therapy (ECT) was studied in seven female patients suffering from major depressive disorder. They were given either ECT alone, or ECT after 10 or 20 mg ritan...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/BF02244407
更新日期:1990-01-01 00:00:00
abstract:OBJECTIVES:Early onset of heroin use during adolescence might increase chances of later drug addiction. Prior work from our laboratory suggests, however, that adolescent male rats are actually less sensitive than adults to some enduring effects of heroin self-administration. In the present study, we tested two likely c...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-012-2847-1
更新日期:2013-02-01 00:00:00
abstract:RATIONALE:During the course of our investigation of antalarmin, a corticotropin-releasing hormone (CRH) antagonist, in rhesus monkeys, we noticed that large, intravenous doses of antalarmin resulted in behavioral changes that resembled intoxication. OBJECTIVES:Antalarmin was evaluated in rhesus monkeys for its reinfor...
journal_title:Psychopharmacology
pub_type: 杂志文章
doi:10.1007/s00213-002-1187-y
更新日期:2002-11-01 00:00:00