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Pharmacology, Biochemistry, and Behavior

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https://www.readbyqxmd.com/read/28427996/no-evidence-that-environmental-enrichment-during-rearing-protects-against-cocaine-behavioral-effects-but-as-an-intervention-reduces-an-already-established-cocaine-conditioned-place-preference
#1
E Galaj, A Shukur, M Manuszak, K Newman, R Ranaldi
OBJECTIVES: Environmental enrichment (EE) produces differential effects on psychostimulant-related behaviors. Therefore, we investigated whether EE introduced during rearing and before cocaine exposure versus in adulthood and after cocaine exposure might be a determinant. METHODS: In Experiment 1, rats reared with EE or not (non-EE) were conditioned with cocaine (5, 10 or 20mg/kg) in one compartment of a CPP apparatus and saline in the other, and later tested for cocaine CPP...
April 17, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28427995/conditioned-taste-avoidance-conditioned-place-preference-and-hyperthermia-induced-by-the-second-generation-bath-salt-%C3%AE-pyrrolidinopentiophenone-%C3%AE-pvp
#2
Katharine H Nelson, Briana J Hempel, Matthew M Clasen, Kenner C Rice, Anthony L Riley
BACKGROUND: α-Pyrrolidinopentiophenone (α-PVP) has been reported to be rewarding in a variety of pre-clinical models. Given that a number of drugs of abuse have both rewarding and aversive effects, the balance of which influences addiction potential, the present study examined the aversive properties of α-PVP by assessing its ability to induce taste avoidance. This assessment was made in a combined taste avoidance/place conditioning design that also allowed an evaluation of the relationship between α-PVP's aversive and rewarding effects...
April 17, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28410978/performance-monitoring-in-nicotine-dependence-considering-integration-of-recent-reinforcement-history
#3
Kevin Butler, Jennifer Rusted, Paul Gard, Anne Jackson
INTRODUCTION: Impaired monitoring of errors and conflict (performance monitoring; PM) is well documented in substance dependence (SD) including nicotine dependence and may contribute to continued drug use. Contemporary models of PM and complementary behavioural evidence suggest that PM works by integrating recent reinforcement history rather than evaluating individual behaviours. Despite this, studies of PM in SD have typically used indices derived from reaction to task error or conflict on individual trials...
April 11, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28408289/dopaminergic-control-of-anxiety-in-young-and-aged-zebrafish
#4
Victoria Kacprzak, Neil A Patel, Elizabeth Riley, Lili Yu, Jing-Ruey J Yeh, Irina V Zhdanova
Changes in the expression of the dopamine transporter (DAT), or the sensitivity of dopamine receptors, are associated with aging and substance abuse and may underlie some of the symptoms common to both conditions. In this study, we explored the role of the dopaminergic system in the anxiogenic effects of aging and acute cocaine exposure by comparing the behavioral phenotypes of wildtype (WT) and DAT knockout zebrafish (DAT-KO) of different ages. To determine the involvement of specific dopamine receptors in anxiety states, antagonists to D1 (SCH23390) and D2/D3 (sulpiride) were employed...
April 10, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28392213/the-acquisition-extinction-and-spontaneous-recovery-of-pavlovian-drug-conditioning-induced-by-post-trial-dopaminergic-stimulation-inhibition
#5
Breno Garone Santos, Robert J Carey, Marinete Pinheiro Carrera
In contextual drug conditioning, the onset of the drug treatment is contiguous with the contextual cues. Evidence suggests that drug conditioning also can occur if there is a discontinuity between the onset of the drug effect and offset of the contextual cues. Here we examine whether post-trial contextual drug conditioning conforms to several Pavlovian conditioning tenets namely: acquisition, extinction and spontaneous recovery. Six groups of rats received apomorphine (0.05 or 2.0mg/kg) and vehicle immediately or after a 15min delay following a 5min non-drug exposure to an open-field during three successive days (conditioning phase)...
April 7, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28389140/sex-differences-in-aripiprazole-sensitization-from-adolescence-to-adulthood
#6
Elizabeth Freeman, Joanne Lin, Shinnyi Chow, Collin Davis, Ming Li
The present study investigated the potential sex differences in repeated aripiprazole (ARI) treatment-induced behavioral sensitization from adolescence to adulthood, and to determine whether ARI sensitization can be transferred to olanzapine (OLZ) and/or clozapine (CLZ) using the conditioned avoidance response (CAR) and phencyclidine-induced (PCP) hyperlocomotion tests of antipsychotic activity. Male and female Sprague-Dawley adolescence rats (P46) were first treated with ARI (10mg/kg) for 5 consecutive days (P46-50) and tested for avoidance response and ARI-induced inhibition of PCP-induced hyperlocomotion...
April 4, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28373066/role-of-d-amphetamine-and-d-methamphetamine-as-active-metabolites-of-benzphetamine-evidence-from-drug-discrimination-and-pharmacokinetic-studies-in-male-rhesus-monkeys
#7
Matthew L Banks, Rodney W Snyder, Timothy R Fennell, S Stevens Negus
Benzphetamine is a Schedule III anorectic agent that is a prodrug for d-amphetamine and d-methamphetamine and may have utility as an "agonist" medication for cocaine use disorder treatment. This study evaluated the pharmacokinetic-pharmacodynamic profile of benzphetamine using a drug discrimination procedure in rhesus monkeys. The potency and time course of cocaine-like discriminative stimulus effects were compared for benzphetamine (10-18mg/kg, intramuscular (IM)) and d-amphetamine (0.032-0.32mg/kg, IM) in monkeys (n=3-4) trained to discriminate IM cocaine (0...
March 31, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28366799/depression-of-home-cage-wheel-running-is-an-objective-measure-of-spontaneous-morphine-withdrawal-in-rats-with-and-without-persistent-pain
#8
Ram Kandasamy, Andrea T Lee, Michael M Morgan
Opioid withdrawal in humans is often subtle and almost always spontaneous. In contrast, most preclinical studies precipitate withdrawal by administration of an opioid receptor antagonist such as naloxone. These animal studies rely on measurement of physiological symptoms (e.g., wet dog shakes) in the period immediately following naloxone administration. To more closely model the human condition, we tested the hypothesis that depression of home cage wheel running will provide an objective method to measure the magnitude and duration of spontaneous morphine withdrawal...
March 31, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28366798/post-sensitization-treatment-with-rimonabant-blocks-the-expression-of-cocaine-induced-behavioral-sensitization-and-c-fos-protein-in-mice
#9
Eduardo A V Marinho, Alexandre J Oliveira-Lima, Thais S Yokoyama, Renan Santos-Baldaia, Luciana T C Ribeiro, Marilia A Baldaia, Raphael Wuo da Silva, Andre Willian Hollais, Fernanda Talhati, Beatriz Monteiro Longo, Lais Fernanda Berro, Roberto Frussa-Filho
CB1 receptor antagonists have been shown to prevent acute and long-term behavioral effects of cocaine. Here we evaluate the effectiveness of the CB1 receptor antagonist rimonabant to modify sensitized responses to cocaine. Mice were treated with saline or cocaine injections in a 15-day intermittent sensitization treatment and subsequently treated with either vehicle, 1 or 10mg/kg rimonabant in the drug-associated environment for 8 consecutive days. Animals were then challenged with saline and cocaine in the open-field apparatus on subsequent days to evaluate the expression of conditioned and sensitized effects to cocaine...
March 31, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28347737/sex-differences-in-alcohol-self-administration-and-relapse-like-behavior-in-long-evans-rats
#10
Patrick A Randall, Robert T Stewart, Joyce Besheer
Alcohol use disorders are a costly public health dilemma. Complicating this issue is the general lack of basic research assessing sex differences in many aspects of alcohol seeking and taking behaviors. The current experiments sought to decrease this gap in our understanding of sex differences in alcohol use disorders by assessing both male and female Long-Evans rats in parallel on alcohol self-administration, relapse-like behavior following abstinence and extinction, and motivation to respond for the standard alcohol solution and a quinine-adulterated alcohol solution...
March 25, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28322866/decreased-anxiety-voluntary-ethanol-intake-and-ethanol-induced-cpp-acquisition-following-activation-of-the-metabotropic-glutamate-receptor-8-mglur8
#11
Amine Bahi
Metabotropic glutamate receptors (mGluRs) are important modulators of excitatory neurotransmission, and have been implicated in addiction to alcohol and anxiety-related behaviors. However, the behavioral consequence and contribution of individual subtypes are not known yet. This study determined the effects of mGluR8 activation on anxiety-like behavior, voluntary ethanol intake and ethanol-induced conditioned reward. To this aim, anxiety and spontaneous behavior were measured in C57BL/6J mice using the elevated plus maze (EPM), open field (OF) and light-dark box (LDB) tests after systemic injection of the selective mGluR8 agonist (S)-3,4-dicarboxyphenylglycine ((S)-3,4-DCPG)...
March 18, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28300546/cocaine-self-administration-specifically-increases-a2ar-d2r-and-d2r-sigma1r-heteroreceptor-complexes-in-the-rat-nucleus-accumbens-shell-relevance-for-cocaine-use-disorder
#12
Dasiel O Borroto-Escuela, Manuel Narváez, Karolina Wydra, Julia Pintsuk, Luca Pinton, Antonio Jimenez-Beristain, Michael Di Palma, Joanna Jastrzębska, Malgorzata Filip, Kjell Fuxe
Adenosine 2A receptor (A2AR) agonists were indicated to reduce cocaine reward and cocaine seeking mainly through activation of antagonistic allosteric A2AR-dopamine D2R (D2R) interactions in A2AR-D2R heteroreceptor complexes. Furthermore, it was shown that modulation of cocaine reward involves antagonistic A2AR-D2R interactions in the ventral but not the dorsal striatum in rats. In the current work the proximity ligation assay (PLA) was used to further study the A2AR-D2R heteroreceptor complexes in the nucleus accumbens shell and core as well as the dorsal striatum under the influence of cocaine self-administration in rats...
March 12, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28285123/preclinical-predictors-that-the-orthosteric-mglu2-3-receptor-antagonist-ly3020371-will-not-engender-ketamine-associated-neurotoxic-motor-cognitive-subjective-or-abuse-liability-related-effects
#13
J M Witkin, J A Monn, J Li, B Johnson, D L McKinzie, X-S Wang, B A Heinz, R Li, P L Ornstein, S C Smith, C H Mitch, D O Calligaro, S Swanson, D Allen, K Phillips, G Gilmour
The novel mGlu2/3 receptor antagonist, LY3020371, has been shown to produce antidepressant-like effects comparable to that of the clinically-effective antidepressant ketamine. In the present study, we investigated whether LY3020371 would be predicted to be free of the side-effects and safety pharmacology issues associated with ketamine. In contrast to ketamine, LY3020371 produced small increases in locomotion and did not impair motor performance on an inverted screen. Ketamine, but not LY3020371, increased dopamine efflux in the nucleus accumbens of rats...
March 8, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28283345/cystathionine-%C3%AE-synthase-derived-hydrogen-sulfide-is-required-for-amygdalar-long-term-potentiation-and-cued-fear-memory-in-rats
#14
Hai-Bo Chen, Wen-Ning Wu, Wei Wang, Xun-Hu Gu, Bin Yu, Bo Wei, Yuan-Jian Yang
Hydrogen sulfide (H2S) is an endogenous gaseous molecule that functions as a neuromodulator in the brain. We previously reported that H2S regulated amygdalar synaptic plasticity and cued fear memory in rats. However, whether endogenous H2S is required for amygdalar long-term potentiation (LTP) induction and cued fear memory formation remains unclear. Here, we show that cystathionine-β-synthase (CBS), the predominant H2S-producing enzyme in the brain, was highly expressed in the amygdala of rats. Suppressing CBS activity by inhibitor prevented activity-triggered generation of H2S in the lateral amygdala (LA) region...
March 8, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28257849/viral-vector-strategies-for-investigating-midbrain-dopamine-circuits-underlying-motivated-behaviors
#15
REVIEW
Daniel F Cardozo Pinto, Stephan Lammel
Midbrain dopamine (DA) neurons have received significant attention in brain research because of their central role in reward processing and their dysfunction in neuropsychiatric disorders such as Parkinson's disease, drug addiction, depression and schizophrenia. Until recently, it has been thought that DA neurons form a homogeneous population whose primary function is the computation of reward prediction errors. However, through the implementation of viral vector strategies, an unexpected complexity and diversity has been revealed at the anatomical, molecular and functional level...
February 28, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28238857/asiaticoside-attenuation-of-rotenone-induced-oxidative-burden-in-a-rat-model-of-hemiparkinsonism-by-maintaining-the-phosphoinositide-mediated-synaptic-integrity
#16
Margabandhu Gopi, Vanisree Arambakkam Janardhanam
Asiaticoside (AS), a triterpenoid saponin isolated from the Indian medicinal herb Centella asiatica is known to exert a neuroprotective effect by attenuating the neurobehavioral, neurochemical and pathological changes in animal models. However, its potential neuroprotection in rotenone-induced hemiparkinsonism which implicates phospholipid-mediated neurotransmission remains unclear. Therefore, we have investigated the neuroprotective effects of AS in rat model of ROT-infused hemiparkinsonism with respect to phosphoinositides-assisted cytodynamics and synaptic function...
February 24, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28216067/the-antidepressant-like-effects-of-biperiden-may-involve-bdnf-trkb-signaling-mediated-bicc1-expression-in-the-hippocampus-and-prefrontal-cortex-of-mice
#17
Dongsheng Zhou, Zhongmin Zhang, Lingjiang Liu, Chenli Li, Mengmeng Li, Hanjie Yu, Xiongxiong Cai, Xin Sun, Xinbei Shen, Jinting Wang, Jiacheng Geng, Chuang Wang, Yaosheng Shi
Preclinical and clinical studies suggest that neuronal muscarinic acetylcholine receptor (M-AchR) antagonists have antidepressant-like properties. Despite the recent interest in bicaudal C homolog 1 gene (BICC1) as a target for the treatment of depression, the upstream signaling molecules that regulate BICC1 are unknown, and very few studies have addressed the involvement of BICC1 in the antidepressant-like effects of the selective M1-AchR inhibitor, biperiden. Growing evidence indicates that activation of brain-derived neurotrophic factor (BDNF)/tropomyosin-related kinase receptor B (TrkB) signaling may be involved in antidepressant-like activities...
February 17, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28216068/stages-of-dysfunctional-decision-making-in-addiction
#18
REVIEW
Antonio Verdejo-Garcia, Trevor T-J Chong, Julie C Stout, Murat Yücel, Edythe D London
Drug use is a choice with immediate positive outcomes, but long-term negative consequences. Thus, the repeated use of drugs in the face of negative consequences suggests dysfunction in the cognitive mechanisms underpinning decision-making. This cognitive dysfunction can be mapped into three stages: the formation of preferences involving valuation of decision options; choice implementation including motivation, self-regulation and inhibitory processes; and feedback processing implicating reinforcement learning...
February 16, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28174137/reward-loss-and-addiction-opportunities-for-cross-pollination
#19
REVIEW
Leonardo A Ortega, José L Solano, Carmen Torres, Mauricio R Papini
Paradigms used to study the response to and consequences of exposure to reward loss have been underutilized in approaches to the psychobiology of substance use disorders. We propose here that bringing these two areas into contact will help expanding our understanding of both reward loss and addictive behavior, hence opening up opportunities for cross-pollination. This review focuses on two lines of research that point to parallels. First, several neurochemical systems involved in addiction are also involved in the modulation of the behavioral effects of reward loss, including opioid, GABA, and dopamine receptors...
March 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/28174136/p-p-methoxyl-diphenyl-diselenide-elicits-an-antidepressant-like-effect-in-mice-without-discontinuation-anxiety-phenotype
#20
Carla Elena Sartori Oliveira, Marcel Henrique Marcondes Sari, Vanessa Angonesi Zborowski, Paulo Cesar Oliveira Araujo, Cristina Wayne Nogueira, Gilson Zeni
Major depressive disorder is the most severe and debilitating disease among psychiatric illnesses. The abrupt interruption of antidepressant treatment may lead to a complex physiological and neuropsychiatric syndrome. The organoselenium compound (MeOPhSe)2 has been reported to have neuroprotective properties in animal models. The study aimed to investigate the effects of single or repeated administration of (MeOPhSe)2 on depressive-like behavior and if the compound administration, and its discontinuation, may affect the anxiolytic-like phenotype in Swiss mice...
March 2017: Pharmacology, Biochemistry, and Behavior
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