Search results for " Quinpirole"

showing 3 items of 3 documents

Addictive-like behaviour for Acetaldehyde: involvement of D2 receptors

2013

Acetaldehyde (ACD), ethanol's first metabolite, is centrally active and shows rewarding and motivational properties. It is able to activate mesolimbic dopamine system, since it enhances neuronal firing of dopamine cells in ventral tegmental area and exerts dopamine release in the nucleus accumbens (Foddai et al., 2004; Melis et al., 2007; Deehan et al., 2013). ACD motivational properties are demonstrated by self-administration studies in rodents (Rodd et al., 2005), particularly behavioural evidence suggests that ACD could produce positive reinforcing effects in operant-conflict paradigms (Cacace et al., 2012). In order to shed light on neurobiological substrate underpinning ACD-related beh…

Acetaldehyde Dopamine system Quinpirole Ropinirole D2 D2-autoreceptors modulation
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Modulation of high impulsivity and attentional performance in rats by selective direct and indirect dopaminergic and noradrenergic receptor agonists

2011

Rationale Impulsivity is associated with a number of psychiatric disorders, most notably attention deficit/hyperactivity disorder (ADHD). Drugs that augment catecholamine function (e.g. methylphenidate and the selective noradrenaline reuptake inhibitor atomoxetine) have clinical efficacy in ADHD, but their precise mechanism of action is unclear. Objective The objective of this study is to investigate the relative contribution of dopamine (DA) and noradrenaline (NA) to the therapeutic effects of clinically effective drugs in ADHD using rats selected for high impulsivity on the five-choice serial reaction time task (5CSRTT). Methods We examined the effects of direct and indirect DA and NA rec…

MaleImpulsivityQuinpiroleDopamineSerial LearningAtomoxetine HydrochlorideImpulsivityChoice BehaviorPiperazines03 medical and health sciences0302 clinical medicineQuinpiroleDopaminemental disordersAnimals Outbred StrainsReaction TimemedicineAnimalsAttentionOriginal InvestigationPharmacologyPropylaminesMethylphenidateDopaminergicAtomoxetineGBR-12909Adrenergic AgonistsGuanfacineRats030227 psychiatry3. Good healthGuanfacineSumaniroleFive-choice serial reaction time taskAtomoxetine; Dopamine; Five-choice serial reaction time task; GBR-12909; Guanfacine; Impulsivity; Methylphenidate; Noradrenaline; Quinpirole; Sumanirole; Adrenergic Agonists; Animals; Animals Outbred Strains; Atomoxetine Hydrochloride; Attention; Benzimidazoles; Choice Behavior; Dopamine Agonists; Guanfacine; Impulsive Behavior; Male; Methylphenidate; Piperazines; Propylamines; Quinpirole; Rats; Reaction Time; Serial Learning; PharmacologyAnesthesiaDopamine AgonistsImpulsive BehaviorNoradrenalineAtomoxetineMethylphenidateBenzimidazolesmedicine.symptomPsychologyNeuroscience030217 neurology & neurosurgerymedicine.drugAtomoxetine hydrochloride
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Involvement of Dopamine D2 Receptors in Addictive-Like Behaviour for Acetaldehyde

2014

Acetaldehyde, the first metabolite of ethanol, is active in the central nervous system, where it exerts motivational properties. Acetaldehyde is able to induce drinking behaviour in operant-conflict paradigms that resemble the core features of the addictive phenotype: drug-intake acquisition and maintenance, drug-seeking, relapse and drug use despite negative consequences. Since acetaldehyde directly stimulates dopamine neuronal firing in the mesolimbic system, the aim of this study was the investigation of dopamine D2-receptors' role in the onset of the operant drinking behaviour for acetaldehyde in different functional stages, by the administration of two different D2-receptor agonists, q…

MaleIndoleslcsh:MedicinePharmacologyBehavioral Neurosciencechemistry.chemical_compoundquinpiroleMedicine and Health Scienceslcsh:ScienceNeuropharmacologyDrug DependenceMultidisciplinaryDopaminergicD2 dopamine receptorsAcetaldehyde; Operant self-administration; D2 dopamine receptors; quinpiroleNeurologyBehavioral PharmacologyDopamine AgonistsSignal TransductionResearch Articlemedicine.drugAlcohol DrinkingDrug-Seeking BehaviorAcetaldehydeAddictive-Like BehaviourNeuropharmacologyQuinpiroleDopamineDopamine receptor D2medicineAnimalsRats WistarAcetaldehyde; Addictive-Like Behaviour; Dopamine D2 ReceptorsPharmacologyOperant self-administrationEthanolReceptors Dopamine D2Neurotransmissionlcsh:RAcetaldehydeBiology and Life SciencesDopamine D2 ReceptorsRatsRopinirolePharmacodynamicschemistrySettore BIO/14 - FarmacologiaConditioning Operantlcsh:QNeurosciencePLoS ONE
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