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Midroit M, Chalençon L, Renier N, Milton A, Thevenet M, Sacquet J, Breton M, Forest J, Noury N, Richard M, Raineteau O, Ferdenzi C, Fournel A, Wesson DW, Bensafi M, Didier A, Mandairon N. Neural processing of the reward value of pleasant odorants. Curr Biol 2021; 31:1592-1605.e9. [PMID: 33607032 DOI: 10.1016/j.cub.2021.01.066] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 01/07/2021] [Accepted: 01/19/2021] [Indexed: 02/07/2023]
Abstract
Pleasant odorants are represented in the posterior olfactory bulb (pOB) in mice. How does this hedonic information generate odor-motivated behaviors? Using optogenetics, we report here that stimulating the representation of pleasant odorants in a sensory structure, the pOB, can be rewarding, self-motivating, and is accompanied by ventral tegmental area activation. To explore the underlying neural circuitry downstream of the olfactory bulb (OB), we use 3D high-resolution imaging and optogenetics and determine that the pOB preferentially projects to the olfactory tubercle, whose increased activity is related to odorant attraction. We further show that attractive odorants act as reinforcers in dopamine-dependent place preference learning. Finally, we extend those findings to humans, who exhibit place preference learning and an increase BOLD signal in the olfactory tubercle in response to attractive odorants. Thus, strong and persistent attraction induced by some odorants is due to a direct gateway from the pOB to the reward system.
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Affiliation(s)
- Maëllie Midroit
- CNRS, UMR 5292, INSERM, U1028, Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon 69000, France; University Lyon, Lyon, 69000, France; University Lyon 1, Villeurbanne 69000, France
| | - Laura Chalençon
- CNRS, UMR 5292, INSERM, U1028, Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon 69000, France; University Lyon, Lyon, 69000, France; University Lyon 1, Villeurbanne 69000, France
| | - Nicolas Renier
- Sorbonne Universités, Paris Brain Institute, ICM, Inserm, CNRS, Paris, France
| | - Adrianna Milton
- Department of Neurosciences, Case Western Reserve University, 2109 Adelbert Road, Cleveland, OH 44106, USA
| | - Marc Thevenet
- CNRS, UMR 5292, INSERM, U1028, Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon 69000, France; University Lyon, Lyon, 69000, France; University Lyon 1, Villeurbanne 69000, France
| | - Joëlle Sacquet
- CNRS, UMR 5292, INSERM, U1028, Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon 69000, France; University Lyon, Lyon, 69000, France; University Lyon 1, Villeurbanne 69000, France
| | - Marine Breton
- CNRS, UMR 5292, INSERM, U1028, Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon 69000, France; University Lyon, Lyon, 69000, France; University Lyon 1, Villeurbanne 69000, France
| | - Jérémy Forest
- CNRS, UMR 5292, INSERM, U1028, Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon 69000, France; University Lyon, Lyon, 69000, France; University Lyon 1, Villeurbanne 69000, France
| | - Norbert Noury
- CNRS, UMR5270, Institute Nanotechnology Lyon, Biomedical Sensors Group, University of Lyon 1, Villeurbanne 69621, France
| | - Marion Richard
- CNRS, UMR 5292, INSERM, U1028, Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon 69000, France; University Lyon, Lyon, 69000, France; University Lyon 1, Villeurbanne 69000, France
| | - Olivier Raineteau
- University Lyon, Université Claude Bernard Lyon 1, Inserm, Stem Cell and Brain Research Institute U1208, 69500 Bron, France
| | - Camille Ferdenzi
- CNRS, UMR 5292, INSERM, U1028, Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon 69000, France; University Lyon, Lyon, 69000, France; University Lyon 1, Villeurbanne 69000, France
| | - Arnaud Fournel
- CNRS, UMR 5292, INSERM, U1028, Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon 69000, France; University Lyon, Lyon, 69000, France; University Lyon 1, Villeurbanne 69000, France
| | - Daniel W Wesson
- Department of Pharmacology & Therapeutics, University of Florida, 1200 Newell Drive, Gainesville, FL 32610, USA
| | - Moustafa Bensafi
- CNRS, UMR 5292, INSERM, U1028, Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon 69000, France; University Lyon, Lyon, 69000, France; University Lyon 1, Villeurbanne 69000, France
| | - Anne Didier
- CNRS, UMR 5292, INSERM, U1028, Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon 69000, France; University Lyon, Lyon, 69000, France; University Lyon 1, Villeurbanne 69000, France
| | - Nathalie Mandairon
- CNRS, UMR 5292, INSERM, U1028, Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon 69000, France; University Lyon, Lyon, 69000, France; University Lyon 1, Villeurbanne 69000, France.
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Machine learning prediction of blood alcohol concentration: a digital signature of smart-breathalyzer behavior. NPJ Digit Med 2021; 4:74. [PMID: 33879844 PMCID: PMC8058037 DOI: 10.1038/s41746-021-00441-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 03/10/2021] [Indexed: 11/08/2022] Open
Abstract
Excess alcohol use is an important determinant of death and disability. Machine learning (ML)-driven interventions leveraging smart-breathalyzer data may help reduce these harms. We developed a digital phenotype of long-term smart-breathalyzer behavior to predict individuals' breath alcohol concentration (BrAC) levels trained on data from a smart breathalyzer. We analyzed roughly one million datapoints from 33,452 users of a commercial smart-breathalyzer device, collected between 2013 and 2017. For validation, we analyzed the associations between state-level observed smart-breathalyzer BrAC levels and impaired-driving motor vehicle death rates. Behavioral, geolocation-based, and time-series-derived features were fed to an ML algorithm using training (70% of the cohort), development (10% of the cohort), and test (20% of the cohort) sets to predict the likelihood of a BrAC exceeding the legal driving limit (0.08 g/dL). States with higher average BrAC levels had significantly higher alcohol-related driving death rates, adjusted for the number of users per state B (SE) = 91.38 (15.16), p < 0.01. In the independent test set, the ML algorithm predicted the likelihood of a given user-initiated BrAC sample exceeding BrAC ≥ 0.08 g/dL, with an area under the curve (AUC) of 85%. Highly predictive features included users' prior BrAC trends, subjective estimation of their BrAC (or AUC = 82% without the self-estimate), engagement and self-monitoring, time since the last measure, and hour of the day. In conclusion, an ML algorithm successfully quantified a digital phenotype of behavior, predicting naturalistic BrAC levels exceeding 0.08 g/dL (a threshold associated with alcohol-related harm) with good discrimination capability. This result establishes a foundation for future research on precision behavioral medicine digital health interventions using smart breathalyzers and passive monitoring approaches.
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Cho C, Deol HK, Martin LJ. Bridging the Translational Divide in Pain Research: Biological, Psychological and Social Considerations. Front Pharmacol 2021; 12:603186. [PMID: 33935700 PMCID: PMC8082136 DOI: 10.3389/fphar.2021.603186] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 02/22/2021] [Indexed: 12/29/2022] Open
Abstract
A gap exists between translating basic science research into effective pain therapies in humans. While preclinical pain research has primarily used animal models to understand biological processes, a lesser focus has been toward using animal models to fully consider other components of the pain experience, such as psychological and social influences. Herein, we provide an overview of translational studies within pain research by breaking them down into purely biological, psychological and social influences using a framework derived from the biopsychosocial model. We draw from a wide landscape of studies to illustrate that the pain experience is highly intricate, and every attempt must be made to address its multiple components and interactors to aid in fully understanding its complexity. We highlight our work where we have developed animal models to assess the cognitive and social effects on pain modulation while conducting parallel experiments in people that provide proof-of-importance for human pain modulation. In some instances, human pain research has sparked the development of novel animal models, with these animal models used to better understand the complexity of phenomena considered to be uniquely human such as placebo responses and empathy.
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Affiliation(s)
- Chulmin Cho
- Department of Psychology, University of Toronto Mississauga, Mississauga, ON, Canada
| | - Harashdeep K Deol
- Department of Psychology, University of Toronto Mississauga, Mississauga, ON, Canada
| | - Loren J Martin
- Department of Psychology, University of Toronto Mississauga, Mississauga, ON, Canada
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Batista LA, Lopes JB, Brianis RC, Haibara AS, Moreira FA. Intravenous doxapram administration as a potential model of panic attacks in rats. Behav Pharmacol 2021; 32:182-193. [PMID: 33136614 DOI: 10.1097/fbp.0000000000000594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Panic disorder can be categorized into the nonrespiratory or the respiratory subtypes, the latter comprising dyspnea, shortness of breath, chest pain, feelings of suffocation, and paresthesias. Doxapram is an analeptic capable of inducing panic attacks with respiratory symptoms in individuals diagnosed with the disorder; however, its neuroanatomical targets and its effects on experimental animals remain uncharacterized. One of the brain regions proposed to trigger panic attacks is the midbrain periaqueductal gray (PAG). Therefore, in this study, we evaluated the effects of doxapram in Fos (c-Fos) protein expression in the PAG and characterized its cardiorespiratory and behavioral effects on the elevated T maze and in the conditioned place aversion (CPA) paradigms. Doxapram increased Fos expression in different columns of the PAG, increased respiratory frequency, decreased heart rate, and increased arterial pressure when injected via intravenous route. Alprazolam, a panicolytic benzodiazepine, injected via intraperitoneal route, decreased respiratory frequency, whereas URB597, an anandamide hydrolysis inhibitor injected via intraperitoneal route, was ineffective. Doxapram injected via intraperitoneal route induced an anxiogenic-like effect in the elevated T-maze model; however, it failed to induce CPA. This study suggests that the cardiorespiratory and behavioral effects of doxapram in rodents serve as an experimental model that can provide insights into the neurobiology of panic attacks.
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Affiliation(s)
| | | | | | - Andrea S Haibara
- Departament of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Xu C, Li R, Wu J. Effects of Yuanhu- Zhitong tablets on alcohol-induced conditioned place preference in mice. Biomed Pharmacother 2021; 133:110962. [PMID: 33166765 DOI: 10.1016/j.biopha.2020.110962] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 10/21/2020] [Accepted: 11/01/2020] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES This study aimed at determining the synergistic effects of Yuanhu Zhitong tablets (YHZTP) on alcohol-induced conditioned place preference (CPP) in mice, in addition, the intervention mechanism was preliminarily explored based on traditional Chinese Medicine (TCM) network pharmacology on alcohol addiction. METHODS Alcohol-induced CPP mice were used to evaluate the effects of either YHZTP or levo-tetrahydropalmatine (l-THP) plus imperatorin (IMP) administration on animal behavior. The network pharmacological strategy was used to establish the "compound-target" and "disease-drug-target" network. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were performed on the shared targets between the compound and the disease. Twelve algorithms on CytoHubba were used to find the hub genes that were verified by qPCR. RESULTS Systemic administration (2 g/kg, i.p.) of ethanol (EtOH) to mice was used to induce CPP. YHZTP On its own did not induce CPP or conditioned place aversion (CPA) at the doses of 0.3 g/kg or 0.6 g/kg (i.g.), but attenuated the acquisition and expression of EtOH-induce CPP in mice. In addition, YHZTP (0.3 or 0.6 g/kg) did not exhibit any effect on the motor activity of mice. Acquisition of alcohol-induced CPP was blocked by a combination of l-THP (5 mg/kg, i.g.) + IMP (2.5 mg/kg, i.g.) or l-THP (10 mg/kg, i.g.) + IMP (5 mg/kg, i.g.). However, the combination of l-THP (2.5 mg/kg, i.g.) + IMP (1.25 mg/kg, i.g.) or mono-administration of l-THP and IMP did not exhibit any effect on alcohol-induced CPP. YHZTP was also shown to reverse the up-regulation of Gabra1, Ptgs2, Mapk1, Mapk8, Mapk14, Nr3c, Prkca and Sirt1 genes and the down-regulation of Hhtr2a and Drd2 genes in the prefrontal cortex of EtOH induced CPP mice. These genes were associated with neuroactive ligand-receptor interactions, activation of the sphingolipid, calcium, cAMP, ErbB, NF-kappa B and MAPK signaling pathways. CONCLUSION YHZTP inhibits EtOH-induced CPP behavior in mice while a combination of l-THP and IMP exerts a synergistic effect on the reduction of EtOH-induced CPP. Possible pharmacological mechanisms include inhibition of the expression of inflammatory factors and regulation of neurotransmitter receptor levels. Therefore, YHZTP is a novel candidate for the treatment of alcohol addiction.
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Affiliation(s)
- Changqiong Xu
- Brain Function and Disease Laboratory, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, PR China
| | - Ran Li
- Brain Function and Disease Laboratory, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, PR China.
| | - Jie Wu
- Brain Function and Disease Laboratory, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, PR China.
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Neutral sphingomyelinase mediates the co-morbidity trias of alcohol abuse, major depression and bone defects. Mol Psychiatry 2021; 26:7403-7416. [PMID: 34584229 PMCID: PMC8872992 DOI: 10.1038/s41380-021-01304-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/06/2021] [Accepted: 09/09/2021] [Indexed: 02/07/2023]
Abstract
Mental disorders are highly comorbid and occur together with physical diseases, which are often considered to arise from separate pathogenic pathways. We observed in alcohol-dependent patients increased serum activity of neutral sphingomyelinase. A genetic association analysis in 456,693 volunteers found associations of haplotypes of SMPD3 coding for NSM-2 (NSM) with alcohol consumption, but also with affective state, and bone mineralisation. Functional analysis in mice showed that NSM controls alcohol consumption, affective behaviour, and their interaction by regulating hippocampal volume, cortical connectivity, and monoaminergic responses. Furthermore, NSM controlled bone-brain communication by enhancing osteocalcin signalling, which can independently supress alcohol consumption and reduce depressive behaviour. Altogether, we identified a single gene source for multiple pathways originating in the brain and bone, which interlink disorders of a mental-physical co-morbidity trias of alcohol abuse-depression/anxiety-bone disorder. Targeting NSM and osteocalcin signalling may, thus, provide a new systems approach in the treatment of a mental-physical co-morbidity trias.
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Chu J, Deyama S, Li X, Motono M, Otoda A, Saito A, Esaki H, Nishitani N, Kaneda K. Role of 5-HT 1A receptor-mediated serotonergic transmission in the medial prefrontal cortex in acute restraint stress-induced augmentation of rewarding memory of cocaine in mice. Neurosci Lett 2020; 743:135555. [PMID: 33352288 DOI: 10.1016/j.neulet.2020.135555] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/28/2020] [Accepted: 12/02/2020] [Indexed: 11/27/2022]
Abstract
Stress enhances cocaine craving. We recently reported that acute restraint stress increases cocaine conditioned place preference (CPP) in mice; however, the underlying mechanisms remain unclear. This study aimed to examine the role of serotonergic transmission in the medial prefrontal cortex (mPFC) in cocaine CPP enhancement by acute restraint stress, which increases extracellular serotonin (5-HT) levels in the mPFC. Intra-mPFC infusion of the selective serotonin reuptake inhibitor (S)-citalopram prior to the test session significantly increased the cocaine CPP score under non-stressed conditions. This is indicative of the substantial role of increased mPFC 5-HT levels in cocaine CPP enhancement. Moreover, intra-mPFC and systemic administration of the 5-HT1A receptor antagonist WAY100635 immediately before restraint stress exposure significantly attenuated stress-induced cocaine CPP enhancement. Our findings suggest that enhanced serotonergic transmission via 5-HT1A receptors in the mPFC is involved in acute stress-induced augmentation of rewarding memory of cocaine; moreover, the 5-HT1A receptor could be a therapeutic target for stress-induced cocaine craving.
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Affiliation(s)
- Jinling Chu
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Satoshi Deyama
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Xueting Li
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Mei Motono
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Atsuki Otoda
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Atsushi Saito
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Hirohito Esaki
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Naoya Nishitani
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan
| | - Katsuyuki Kaneda
- Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-1192, Japan.
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McKendrick G, Sharma S, Sun D, Randall PA, Graziane NM. Acute and chronic bupropion treatment does not prevent morphine-induced conditioned place preference in mice. Eur J Pharmacol 2020; 889:173638. [PMID: 33039460 DOI: 10.1016/j.ejphar.2020.173638] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/28/2020] [Accepted: 10/07/2020] [Indexed: 12/14/2022]
Abstract
A substantial barrier to the treatment of Opioid Use Disorder (OUD) is the elevated relapse rates in affected patients, and a significant contributor to these events of relapse is exposure to cues and contexts that are intensely associated with prior drug abuse. The neurotransmitter dopamine plays a key role in reward-related behaviors, and previous studies have illustrated that dopamine hypofunction in periods of abstinence serves to prompt drug craving and seeking. We hypothesized that restoration of dopaminergic signaling could attenuate drug-seeking behaviors. Therefore, we investigated whether use of an FDA-approved drug, bupropion, an inhibitor of the dopamine transporter (DAT), or a dopamine uptake inhibitor with high affinity for DAT, JHW 007, was able to decrease preference for a drug-paired context. In these experiments, mice underwent 5 days of non-contingent morphine (10 mg/kg) exposure in a conditioned place preference (CPP) paradigm. We found that systemic injection of bupropion (20 mg/kg, i. p.) or intracranial injection of JHW 007 into the nucleus accumbens shell did not prevent the expression of morphine CPP. We then investigated whether chronic bupropion treatment (via implanted osmotic pumps) would influence morphine CPP. We observed that chronic bupropion treatment for 21 days following morphine conditioning did not attenuate the prolonged preference for morphine-paired contexts. Overall, with our dose and paradigm, neither acute nor chronic bupropion diminishes morphine CPP. Continued studies should address FDA-approved medications and their potential for recovery in OUD patients.
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Affiliation(s)
- Greer McKendrick
- Neuroscience Graduate Program, Penn State College of Medicine, Hershey, PA 17033, USA; Department of Anesthesiology and Perioperative Medicine, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Sonakshi Sharma
- Department of Anesthesiology and Perioperative Medicine, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Dongxiao Sun
- Department of Pharmacology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Patrick A Randall
- Departments of Anesthesiology and Perioperative Medicine and Pharmacology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Nicholas M Graziane
- Departments of Anesthesiology and Perioperative Medicine and Pharmacology, Penn State College of Medicine, Hershey, PA 17033, USA.
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Japarin RA, Yusoff NH, Hassan Z, Müller CP, Harun N. Cross-reinstatement of mitragynine and morphine place preference in rats. Behav Brain Res 2020; 399:113021. [PMID: 33227244 DOI: 10.1016/j.bbr.2020.113021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/13/2020] [Accepted: 11/13/2020] [Indexed: 02/08/2023]
Abstract
Kratom is a medicinal plant that exhibits promising results as an opiate substitute. However, there is little information regarding the abuse profile of its main psychoactive constituent, mitragynine (MG), particularly in relapse to drug abuse. Using the place conditioning procedure as a model of relapse, this study aims to evaluate the ability of MG to induce conditioned place preference (CPP) reinstatement in rats. To evaluate the cross-reinstatement effects, MG and morphine were injected to rats that previously extinguished a morphine- or MG-induced CPP. Following a CPP acquisition induced by either MG (10 and 30 mg/kg, i.p.) or morphine (10 mg/kg, i.p.), rats were subjected to repeated CPP extinction sessions. A low dose priming injection of MG or morphine produced a reinstatement of the previously extinguished CPP. In the second experiment of this study, a priming injection of morphine (1, 3 and 10 mg/kg, i.p.) dose-dependently reinstated an MG-induced CPP. Likewise, a priming injection of MG (3, 10 and 30 mg/kg, i.p.) was able to dose-dependently reinstate a morphine-induced CPP. The present study demonstrates a cross-reinstatement effect between MG and morphine, thereby suggesting a similar interaction in their rewarding motivational properties. The findings from this study also suggesting that a priming exposure to kratom and an opioid may cause relapse for a previously abused drug.
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Affiliation(s)
- Rima Atria Japarin
- Centre for Drug Research, Universiti Sains Malaysia, 11800, Gelugor, Penang, Malaysia
| | - Nurul Hasnida Yusoff
- Centre for Drug Research, Universiti Sains Malaysia, 11800, Gelugor, Penang, Malaysia
| | - Zurina Hassan
- Centre for Drug Research, Universiti Sains Malaysia, 11800, Gelugor, Penang, Malaysia
| | - Christian P Müller
- Department of Psychiatry and Psychotherapy, University Clinic, Friedrich-Alexander-University Erlangen-Nuremberg, Schwabachanlage 6, 91054, Erlangen, Germany
| | - Norsyifa Harun
- Centre for Drug Research, Universiti Sains Malaysia, 11800, Gelugor, Penang, Malaysia.
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Giacometti LL, Chandran K, Figueroa LA, Barker JM. Astrocyte modulation of extinction impairments in ethanol-dependent female mice. Neuropharmacology 2020; 179:108272. [PMID: 32801026 DOI: 10.1016/j.neuropharm.2020.108272] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/17/2020] [Accepted: 08/10/2020] [Indexed: 12/12/2022]
Abstract
Rates of alcohol use disorders are increasing in women, and there is growing evidence that both the cognitive and biological consequences of alcohol dependence are distinct in women as compared to men. Despite this, the neurobehavioral outcomes of chronic alcohol exposure are poorly characterized in women and female animals. In this study, we find that ethanol dependence impaired extinction of reward seeking in a food conditioned place preference task in female mice. At the same time point, ethanol-dependent females exhibited astrocytic dysregulation as indicated by a brain region-specific reduction in glial fibrillary acidic protein (GFAP) expression. Using a chemogenetic strategy, we demonstrate that modulating astrocyte function via chemogenetic activation of Gq-signaling in nucleus accumbens astrocytes transiently rescued extinction in ethanol-dependent females without impacting basal reward seeking. These findings identify astrocyte function as a potential target for the restoration of behavioral flexibility following chronic alcohol exposure in females.
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Affiliation(s)
- Laura L Giacometti
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, 19102, USA
| | - Kelsey Chandran
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, 19102, USA
| | - Laura A Figueroa
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, 19102, USA
| | - Jacqueline M Barker
- Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, PA, 19102, USA.
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Ayahuasca blocks the reinstatement of methylphenidate-induced conditioned place preference in mice: behavioral and brain Fos expression evaluations. Psychopharmacology (Berl) 2020; 237:3269-3281. [PMID: 32676773 DOI: 10.1007/s00213-020-05609-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 07/09/2020] [Indexed: 10/23/2022]
Abstract
RATIONALE Accumulating evidence suggests that ayahuasca, a hallucinogenic beverage used in traditional Amazonian communities for ritualistic and curative purposes, has been associated with reduced rates of substance use disorders. However, the brain mechanisms underlying the therapeutic effects of ayahuasca have not yet been fully elucidated. OBJECTIVES The aim of the present study was to investigate the effects of treatment with ayahuasca on the rewarding properties of the psychostimulant methylphenidate. METHODS The rewarding properties of ayahuasca (100 mg/kg, orally) and methylphenidate (10 mg/kg, i.p.) were investigated using the conditioned place preference (CPP) model. Furthermore, we evaluated the effects of repeated treatment with ayahuasca on the reinstatement of methylphenidate-induced CPP. Fos expression was evaluated in different limbic structures (cingulate cortex-area 1, prelimbic cortex, infralimbic cortex, orbitofrontal cortex-lateral orbital area, nucleus accumbens core and shell, ventral tegmental area, dorsal striatum, and basolateral amygdala) upon each experimental phase. RESULTS Both ayahuasca and methylphenidate induced CPP in mice. However, ayahuasca had limited effects on Fos expression, while methylphenidate altered Fos expression in several brain regions associated with the behavioral effects of drugs of abuse. Treatment with ayahuasca after conditioning with methylphenidate blocked the reinstatement of methylphenidate-induced CPP. Those behavioral effects were accompanied by changes in Fos expression patterns, with ayahuasca generally blocking the changes in Fos expression induced by conditioning with methylphenidate and/or reexposure to methylphenidate. CONCLUSIONS Our findings suggest that ayahuasca restored normal brain function in areas associated with the long-term expression of drug wanting/seeking in animals conditioned to methylphenidate.
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McKendrick G, Graziane NM. Drug-Induced Conditioned Place Preference and Its Practical Use in Substance Use Disorder Research. Front Behav Neurosci 2020; 14:582147. [PMID: 33132862 PMCID: PMC7550834 DOI: 10.3389/fnbeh.2020.582147] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 09/02/2020] [Indexed: 12/25/2022] Open
Abstract
The conditioned place preference (CPP) paradigm is a well-established model utilized to study the role of context associations in reward-related behaviors, including both natural rewards and drugs of abuse. In this review article, we discuss the basic history, various uses, and considerations that are tied to this technique. There are many potential takeaway implications of this model, including negative affective states, conditioned drug effects, memory, and motivation, which are all considered here. We also discuss the neurobiology of CPP including relevant brain regions, molecular signaling cascades, and neuromodulatory systems. We further examine some of our prior findings and how they integrate CPP with self-administration paradigms. Overall, by describing the fundamentals of CPP, findings from the past few decades, and implications of using CPP as a research paradigm, we have endeavored to support the case that the CPP method is specifically advantageous for studying the role of a form of Pavlovian learning that associates drug use with the surrounding environment.
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Affiliation(s)
- Greer McKendrick
- Neuroscience Graduate Program, Penn State College of Medicine, Hershey, PA, United States.,Department of Anesthesiology and Perioperative Medicine, Penn State College of Medicine, Hershey, PA, United States
| | - Nicholas M Graziane
- Departments of Anesthesiology and Perioperative Medicine and Pharmacology, Penn State College of Medicine, Hershey, PA, United States
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63
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Schmill MP, Cadney MD, Thompson Z, Hiramatsu L, Albuquerque RL, McNamara MP, Castro AA, Kay JC, Buenaventura DG, Ramirez JL, Rhodes JS, Garland T. Conditioned place preference for cocaine and methylphenidate in female mice from lines selectively bred for high voluntary wheel-running behavior. GENES BRAIN AND BEHAVIOR 2020; 20:e12700. [PMID: 32909333 DOI: 10.1111/gbb.12700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 09/06/2020] [Accepted: 09/07/2020] [Indexed: 12/27/2022]
Abstract
Behavioral addictions can come in many forms, including overeating, gambling and overexercising. All addictions share a common mechanism involving activation of the natural reward circuit and reinforcement learning, but the extent to which motivation for natural and drug rewards share similar neurogenetic mechanisms remains unknown. A unique mouse genetic model in which four replicate lines of female mice were selectively bred (>76 generations) for high voluntary wheel running (High Runner or HR lines) alongside four non-selected control (C) lines were used to test the hypothesis that high motivation for exercise is associated with greater reward for cocaine (20 mg/kg) and methylphenidate (10 mg/kg) using the conditioned place preference (CPP) test. HR mice run ~three times as many revolutions/day as C mice, but the extent to which they have increased motivation for other rewards is unknown. Both HR and C mice displayed significant CPP for cocaine and methylphenidate, but with no statistical difference between linetypes for either drug. Taken together, results suggest that selective breeding for increased voluntary running has modified the reward circuit in the brain in a way that increases motivation for running without affecting cocaine or methylphenidate reward.
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Affiliation(s)
- Margaret P Schmill
- Neuroscience Graduate Program, University of California, Riverside, California, USA
| | - Marcell D Cadney
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Zoe Thompson
- Neuroscience Graduate Program, University of California, Riverside, California, USA
| | - Layla Hiramatsu
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Ralph L Albuquerque
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Monica P McNamara
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Alberto A Castro
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Jarren C Kay
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Darrius G Buenaventura
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Jocelyn L Ramirez
- Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
| | - Justin S Rhodes
- Beckman Institute for Advanced Science and Technology, Urbana, Illinois, USA.,Center for Nutrition, Learning and Memory, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Theodore Garland
- Neuroscience Graduate Program, University of California, Riverside, California, USA.,Department of Evolution, Ecology, and Organismal Biology, University of California, Riverside, California, USA
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64
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Dell'Orco M, Oliver RJ, Perrone-Bizzozero N. HuD Binds to and Regulates Circular RNAs Derived From Neuronal Development- and Synaptic Plasticity-Associated Genes. Front Genet 2020; 11:790. [PMID: 32849796 PMCID: PMC7419605 DOI: 10.3389/fgene.2020.00790] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/03/2020] [Indexed: 12/17/2022] Open
Abstract
The RNA-binding protein (RBP) HuD is involved in neuronal differentiation, regeneration, synaptic plasticity and learning and memory. RBPs not only bind to mRNAs but also interact with several types of RNAs including circular RNAs (circRNAs), a class of non-coding RNAs generated by pre-mRNA back-splicing. This study explored whether HuD could regulate the expression of neuronal circRNAs. HuD controls target RNA’s fate by binding to Adenylate-Uridylate Rich Elements (AREs). Using bioinformatics analyses, we found HuD-binding ARE-motifs in about 26% of brain-expressed circRNAs. By RNA immunoprecipitation (RIP) from the mouse striatum followed by circRNA arrays, we identified over 600 circRNAs bound to HuD. Among these, 226 derived from genes where HuD also bound to their associated mRNAs including circHomer1a, which we previously characterized as a synaptic HuD target circRNA. Binding of HuD to two additional plasticity–associated circRNAs, circCreb1, and circUfp2, was validated by circRNA-specific qRT-PCR. Interestingly, we found that circUpf2 is also enriched in synaptosomes. Pathway analyses confirmed that the majority of HuD-bound circRNAs originate from genes regulating nervous system development and function. Using striatal tissues from HuD overexpressor (HuD-OE) and knock out (KO) mice for circRNA expression analyses we identified 86 HuD-regulated circRNAs. These derived from genes within the same biological pathways as the HuD RIP. Cross-correlation analyses of HuD-regulated and HuD-bound circRNAs identified 69 regulated in either HuD-OE or HuD-KO and 5 in both sets. These include circBrwd1, circFoxp1, and circMap1a, which derive from genes involved in neuronal development and regeneration, and circMagi1 and circLppr4, originating from genes controlling synapse formation and linked to psychiatric disorders. These circRNAs form competing endogenous RNA (ceRNA) networks including microRNAs and mRNAs. Among the HuD target circRNAs, circBrwd1 and circFoxp1 are regulated in an opposite manner to their respective mRNAs. The expressions of other development- and plasticity-associated HuD target circRNAs such as circSatb2, cirHomer1a and circNtrk3 are also altered after the establishment of cocaine conditioned place preference (CPP). Collectively, these data suggest that HuD interactions with circRNAs regulate their expression and transport, and that the ensuing changes in HuD-regulated ceRNA networks could control neuronal differentiation and synaptic plasticity.
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Affiliation(s)
- Michela Dell'Orco
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Robert J Oliver
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
| | - Nora Perrone-Bizzozero
- Department of Neurosciences, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM, United States
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65
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László K, Péczely L, Géczi F, Kovács A, Zagoracz O, Ollmann T, Kertes E, Kállai V, László B, Berta B, Karádi Z, Lénárd L. The role of D2 dopamine receptors in oxytocin induced place preference and anxiolytic effect. Horm Behav 2020; 124:104777. [PMID: 32439347 DOI: 10.1016/j.yhbeh.2020.104777] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/24/2020] [Accepted: 05/15/2020] [Indexed: 12/01/2022]
Abstract
Neuropeptide oxytocin (OT) is involved in the regulation of social and non-social behaviour. The central nucleus of amygdala (CeA), part of the limbic system, plays an important role in learning, memory, anxiety and reinforcing mechanisms. CeA has been shown to be rich in OT receptors in rodents. Our previous findings indicated that OT in the rat CeA has a dose dependent rewarding and anxiolytic effect. The aim of our present study was to examine in the CeA the possible interaction of OT and D2 dopamine (DA) receptor antagonist Sulpiride on reinforcement in place preference test and on anxiety in elevated plus maze test. Wistar rats were microinjected bilaterally with 10 ng OT. In different group of animals 4 μg D2 DA receptor antagonist was applied. Other animals received D2 DA receptor antagonist 15 min before 10 ng OT treatment or vehicle solution into the CeA. Rats receiving 10 ng OT spent significantly longer time in the treatment quadrant during the test session in conditioned place preference test. Prior treatment with D2 DA receptor antagonist blocked the rewarding effects of OT. Antagonist in itself did not influence the time rats spent in the treatment quadrant. In elevated plus maze test, rats receiving 10 ng OT spent significantly longer time on the open arms. Prior treatment with D2 DA receptor antagonist blocked the effects of OT. Our results show that DA system plays a role in positive reinforcing and anxiolytic effects of OT because D2 DA receptor antagonist can block these actions.
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MESH Headings
- Amygdala/drug effects
- Amygdala/metabolism
- Animals
- Anti-Anxiety Agents/pharmacology
- Anxiety/drug therapy
- Behavior, Animal/drug effects
- Conditioning, Classical/drug effects
- Dopamine D2 Receptor Antagonists/pharmacology
- Fear/drug effects
- Freezing Reaction, Cataleptic/drug effects
- Male
- Maze Learning/drug effects
- Oxytocin/pharmacology
- Rats
- Rats, Wistar
- Receptors, Dopamine D1/metabolism
- Receptors, Dopamine D2/metabolism
- Receptors, Dopamine D2/physiology
- Receptors, Oxytocin/metabolism
- Receptors, Oxytocin/physiology
- Reinforcement, Psychology
- Reward
- Spatial Behavior/drug effects
- Sulpiride/pharmacology
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Affiliation(s)
- K László
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary.
| | - L Péczely
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - F Géczi
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - A Kovács
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - O Zagoracz
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - T Ollmann
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - E Kertes
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - V Kállai
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - B László
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - B Berta
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary
| | - Z Karádi
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary; Molecular Endocrinology and Neurophysiology Research Group, University of Pécs, Szentágothai Center, Pécs, Hungary
| | - L Lénárd
- Institute of Physiology, University of Pécs, Medical School, Pécs, Hungary; Neuroscience Center, University of Pécs, Pécs, Hungary; Molecular Endocrinology and Neurophysiology Research Group, University of Pécs, Szentágothai Center, Pécs, Hungary
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66
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Rosa HZ, Segat HJ, Barcelos RCS, Roversi K, Rossato DR, de Brum GF, Burger ME. Involvement of the endogenous opioid system in the beneficial influence of physical exercise on amphetamine-induced addiction parameters. Pharmacol Biochem Behav 2020; 197:173000. [PMID: 32702398 DOI: 10.1016/j.pbb.2020.173000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/31/2020] [Accepted: 07/16/2020] [Indexed: 12/21/2022]
Abstract
Psychostimulant drugs addiction is a chronic public health problem and individuals remain susceptible to relapses increasing public expenses even after withdrawal and treatment. Our research group has focused on finding new therapies to be employed in drug addiction treatment, suggesting the physical exercise as a promising tool. This way, it is necessary to know the mechanisms involved in the beneficial influences of physical exercise observing the pathway that could be explored in drug addiction treatment. Male Wistar rats were conditioned with amphetamine (AMPH) following the conditioned place preference (CPP) protocol and subsequently submitted to swimming for 5 weeks (1 h per day, 5 days per week). Half of the animals were injected with Naloxone (0.3 mg/mL/kg body weight, i.p.) 5 min prior each physical exercise day. After AMPH-CPP re-exposure, our outcomes showed that physical exercise, in addition to minimizing the relapse behavior in the CPP, it increased D1R, D2R and DAT in the Ventral Tegmental Area (VTA), but not in the Nucleus accumbens (NAc). Interestingly, while naloxone inhibited the partial beneficial influence of the exercise on drug-relapse behavior, exercise-induced changes in the dopaminergic system were not observed in the group administered with naloxone as well. Based on these evidences, besides reinforcing the beneficial influence of the physical exercise on AMPH-induced drug addiction, we propose the involvement of endogenous opioid system activation, not as a single one, but as a possible mechanism of action resulting from the physical activity practice, thus characterizing an important therapeutic approach, which may contribute to drug withdrawal consequently preventing relapse.
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Affiliation(s)
- H Z Rosa
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - H J Segat
- Departamento de Patologia, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - R C S Barcelos
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - Kr Roversi
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - D R Rossato
- Departamento de Fisiologia e Farmacologia, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - G F de Brum
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brazil
| | - M E Burger
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brazil; Departamento de Patologia, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brazil; Departamento de Fisiologia e Farmacologia, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brazil.
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67
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Andersen JM, Opdal SH, Müller CP, Boix F. CaMKII is activated in opioid induced conditioned place preference, but αCaMKII Thr286 autophosphorylation is not necessary for its establishment. Behav Brain Res 2020; 390:112676. [DOI: 10.1016/j.bbr.2020.112676] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/12/2020] [Accepted: 04/23/2020] [Indexed: 12/17/2022]
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68
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McKendrick G, Garrett H, Jones HE, McDevitt DS, Sharma S, Silberman Y, Graziane NM. Ketamine Blocks Morphine-Induced Conditioned Place Preference and Anxiety-Like Behaviors in Mice. Front Behav Neurosci 2020; 14:75. [PMID: 32508606 PMCID: PMC7253643 DOI: 10.3389/fnbeh.2020.00075] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/23/2020] [Indexed: 12/12/2022] Open
Abstract
Patients suffering from opioid use disorder often relapse during periods of abstinence, which is posited to be caused by negative affective states that drive motivated behaviors. Here, we explored whether conditioning mice with morphine in a conditioned place preference (CPP) training paradigm evoked anxiety-like behavior during morphine abstinence. To do this, mice were conditioned with morphine (10 mg/kg, i.p.) for 5 days. Twenty-four hours following conditioning, anxiety levels were tested by measuring time in the open arms of the elevated plus-maze. The next day, mice were placed in the three-compartment chamber to measure morphine-induced CPP. Our results show that following morphine conditioning, mice spent significantly less time in the open arm of the elevated plus-maze and expressed robust morphine CPP on CPP test day. Furthermore, we found that an acute treatment with (R,S)-ketamine (10 mg/kg, i.p.), a medication demonstrating promise for preventing anxiety-related phenotypes, 30 min before testing on post-conditioning day 1, increased time spent in the open arm of the elevated plus-maze in saline- and morphine-conditioned mice. Additionally, we found that the second injection of ketamine 30 min before CPP tests on post-conditioning day 2 prevented morphine-induced CPP, which lasted for up to 28 days post-conditioning. Furthermore, we found that conditioning mice with 10% (w/v) sucrose using an oral self-administration procedure did not evoke anxiety-like behavior, but elicited robust CPP, which was attenuated by ketamine treatment 30 min before CPP tests. Overall, our results suggest that the ketamine-induced block of morphine CPP may not be attributed solely to alleviating negative affective states, but potentially through impaired memory of morphine-context associations.
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Affiliation(s)
- Greer McKendrick
- Neuroscience Graduate Program, Penn State College of Medicine, Hershey, PA, United States.,Department of Anesthesiology and Perioperative Medicine, Penn State College of Medicine, Hershey, PA, United States
| | - Hannah Garrett
- Department of Anesthesiology and Perioperative Medicine, Penn State College of Medicine, Hershey, PA, United States
| | - Holly E Jones
- Department of Anesthesiology and Perioperative Medicine, Penn State College of Medicine, Hershey, PA, United States.,Summer Undergraduate Research Internship Program, Penn State College of Medicine, Hershey, PA, United States
| | - Dillon S McDevitt
- Neuroscience Graduate Program, Penn State College of Medicine, Hershey, PA, United States.,Summer Undergraduate Research Internship Program, Penn State College of Medicine, Hershey, PA, United States
| | - Sonakshi Sharma
- Department of Anesthesiology and Perioperative Medicine, Penn State College of Medicine, Hershey, PA, United States
| | - Yuval Silberman
- Department of Neural and Behavioral Sciences, Penn State College of Medicine, Pennsylvania State University, Hershey, PA, United States
| | - Nicholas M Graziane
- Departments of Anesthesiology and Perioperative Medicine and Pharmacology, Penn State College of Medicine, Hershey, PA, United States
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69
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König L, Kalinichenko LS, Huber SE, Voll AM, Bauder M, Kornhuber J, Hausch F, Müller CP. The selective FKBP51 inhibitor SAFit2 reduces alcohol consumption and reinstatement of conditioned alcohol effects in mice. Addict Biol 2020; 25:e12758. [PMID: 31173432 DOI: 10.1111/adb.12758] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 03/13/2019] [Accepted: 03/18/2019] [Indexed: 01/19/2023]
Abstract
There is still no widely effective pharmacotherapy for alcohol addiction available in the clinic. FK506-binding protein 51 (FKBP51) is a negative regulator of the glucocorticoid receptor signaling pathway that regulates the stress-induced glucocorticoid feedback circuit. Here we asked whether selective inhibitors of FKBP51, exemplified by SAFit2, may serve as a new pharmacological strategy to reduce alcohol consumption and conditioned alcohol effects in a mouse model. We report that a relatively short treatment with SAFit2 (20 mg/kg, ip) reduces ongoing 16 vol% alcohol consumption when administered during free access to alcohol in a two-bottle free-choice test. SAFit2 was also able to reduce alcohol consumption when given during an abstinence period immediately before relapse. In contrast, SAFit2 did not affect alcohol consumption when given during a relapse period after repeated withdrawal from alcohol. SAFit2 (10 and 20 mg/kg, ip) showed no effects when used in an intermittent drinking schedule. When 20 vol% alcohol was only available every other day, SAFit2 had no effect on drinking, no matter whether given during a drinking episode or the day before. SAFit2 (2 and 20 mg/kg, ip) did not affect the expression of an alcohol-induced conditioned place preference (CPP). However, SAFit2 was able to inhibit alcohol-induced reinstatement of an extinguished CPP in a dose-dependent way. Altogether, these data may suggest pharmacological inhibition of FKBP51 as a viable strategy to reduce alcohol seeking and consumption.
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Affiliation(s)
- Loretta König
- Department of Psychiatry and PsychotherapyUniversity Clinic, Friedrich‐Alexander‐University Erlangen‐Nuremberg Germany
| | - Liubov S. Kalinichenko
- Department of Psychiatry and PsychotherapyUniversity Clinic, Friedrich‐Alexander‐University Erlangen‐Nuremberg Germany
| | - Sabine E. Huber
- Department of Psychiatry and PsychotherapyUniversity Clinic, Friedrich‐Alexander‐University Erlangen‐Nuremberg Germany
- Institute of Physiology IWestfälische Wilhelms‐University Münster Germany
| | - Andreas M. Voll
- Department of Translational Research in PsychiatryMax Planck Institute of Psychiatry Germany
- Department of Chemistry, Clemens‐Schöpf‐Institut for Organic Chemistry and BiochemistryTechnical University Darmstadt Germany
| | - Michael Bauder
- Department of Chemistry, Clemens‐Schöpf‐Institut for Organic Chemistry and BiochemistryTechnical University Darmstadt Germany
| | - Johannes Kornhuber
- Department of Psychiatry and PsychotherapyUniversity Clinic, Friedrich‐Alexander‐University Erlangen‐Nuremberg Germany
| | - Felix Hausch
- Department of Translational Research in PsychiatryMax Planck Institute of Psychiatry Germany
- Department of Chemistry, Clemens‐Schöpf‐Institut for Organic Chemistry and BiochemistryTechnical University Darmstadt Germany
| | - Christian P. Müller
- Department of Psychiatry and PsychotherapyUniversity Clinic, Friedrich‐Alexander‐University Erlangen‐Nuremberg Germany
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70
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Mechanisms of a near-orthogonal ultra-fast evolution of human behaviour as a source of culture development. Behav Brain Res 2020; 384:112521. [DOI: 10.1016/j.bbr.2020.112521] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/24/2020] [Accepted: 01/29/2020] [Indexed: 12/15/2022]
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71
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Bagherpasand N, Mehri S, Jafari Shahroudi M, Tabatabai SM, Khezri A, Fathi M, Abnous K, Imenshahidi M, Hosseinzadeh H. Effect of Topiramate on Morphine-induced Conditioned Place Preference (CPP) in Rats: Role of ERK and CREB Proteins in Hippocampus and Cerebral Cortex. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2020; 18:2000-2010. [PMID: 32184865 PMCID: PMC7059042 DOI: 10.22037/ijpr.2019.1100873] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this study, the effect of topiramate, as an antiepileptic drug, was evaluated on morphine craving in rats. The conditioned place preference (CPP) test was used for this purpose. Repeated administration of morphine (10 mg/kg, i.p. for 4 days) induced significant CPP. Administration of topiramate (50 and 100 mg/kg, i.p. for 4 days) with each morphine administration decreased the acquisition of morphine-induced CPP. At the next step, the levels of extracellular signal-regulated kinase (ERK), p-ERK, cAMP responsive element binding (CREB), and p-CREB proteins were evaluated in hippocampus and cerebral cortex using western blot analysis. Following the repeated administration of morphine, the level of p-ERK protein markedly enhanced in both tissues, while topiramate could significantly reduce the phosphorylation of ERK in these brain regions. Additionally, the level of CREB and p-CREB proteins did not change in different groups. Memantine as a positive control reduced the acquisition of morphine-induced CPP. Also, memantine significantly decreased the level of p-ERK protein in hippocampus and cerebral cortex. These results demonstrated that topiramate can attenuate the acquisition of morphine-induced CPP in rats. This effect in part can be mediated through down regulation of p-ERK protein in hippocampus and cerebral cortex.
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Affiliation(s)
- Nima Bagherpasand
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Soghra Mehri
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahdieh Jafari Shahroudi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Meghdad Tabatabai
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Khezri
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Fathi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Imenshahidi
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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72
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Johnson KA, Lovinger DM. Allosteric modulation of metabotropic glutamate receptors in alcohol use disorder: Insights from preclinical investigations. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2020; 88:193-232. [PMID: 32416868 DOI: 10.1016/bs.apha.2020.02.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Metabotropic glutamate (mGlu) receptors are family C G protein-coupled receptors (GPCRs) that modulate neuronal excitability and synaptic transmission throughout the nervous system. Owing to recent advances in development of subtype-selective allosteric modulators of mGlu receptors, individual members of the mGlu receptor family have been proposed as targets for treating a variety of neurological and psychiatric disorders, including substance use disorders. In this chapter, we highlight preclinical evidence that allosteric modulators of mGlu receptors could be useful for reducing alcohol consumption and preventing relapse in alcohol use disorder (AUD). We begin with an overview of the preclinical models that are used to study mGlu receptor involvement in alcohol-related behaviors. Alcohol exposure causes adaptations in both expression and function of various mGlu receptor subtypes, and pharmacotherapies aimed at reversing these adaptations have the potential to reduce alcohol consumption and seeking. Positive allosteric modulators (PAMs) of mGlu2 and negative allosteric modulators of mGlu5 show particular promise for reducing alcohol intake and/or preventing relapse. Finally, this chapter discusses important considerations for translating preclinical findings toward the development of clinically useful drugs, including the potential for PAMs to avoid tolerance issues that are frequently observed with repeated administration of GPCR agonists.
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Affiliation(s)
- Kari A Johnson
- Department of Pharmacology, Uniformed Services University of the Health Sciences, Bethesda, MD, United States.
| | - David M Lovinger
- Laboratory for Integrative Neuroscience, National Institute on Alcohol Abuse and Alcoholism, US National Institutes of Health, Rockville, MD, United States
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73
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Girardi BA, Fabbrin S, Wendel AL, Mello CF, Rubin MA. Spermidine, a positive modulator of the NMDA receptor, facilitates extinction and prevents the reinstatement of morphine-induced conditioned place preference in mice. Psychopharmacology (Berl) 2020; 237:681-693. [PMID: 31828395 DOI: 10.1007/s00213-019-05403-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 11/15/2019] [Indexed: 02/08/2023]
Abstract
RATIONALE Individuals with opioid use disorders often relapse into drug-seeking behavior after recalling memories linked to the drug use experience. Improving extinction efficacy has been used as a strategy to treat substance use disorders and suppress relapse. Although N-methyl-D-aspartate receptor (NMDAr) agonists facilitate acquisition, consolidation, and extinction, no study has addressed whether spermidine (SPD), a natural polyamine ligand of the NMDA receptor, facilitates the extinction and reinstatement of morphine-induced conditioned place preference (CPP). OBJECTIVES AND METHODS The aim of the present study was to investigate the effect of SPD, an NMDAr agonist, on the extinction and reinstatement of morphine-induced CPP in mice. Adult male albino Swiss mice received saline (0.9% NaCl) or morphine (5 mg/kg) intraperitoneally (i.p.) and were respectively confined to a black or a white compartment for 30 min for four consecutive days for CPP induction. SPD (10-30 mg/kg, i.p.) or ifenprodil (NMDAr antagonist, 0.1-1 mg/kg, i.p.) were injected 15 min before extinction training. RESULTS SPD and ifenprodil facilitated the extinction of morphine-induced CPP. SPD treatment during the extinction period impaired reinstatement induced by a priming dose of morphine (1.25 mg/kg). Ifenprodil (0.1 mg/kg) prevented the facilitatory effect of spermidine on the extinction of morphine-induced CPP but did not prevent reinstatement induced by morphine. CONCLUSIONS These results suggest that SPD facilitated the extinction of morphine-induced CPP by modulating the polyamine binding site of the NMDA receptor. Our findings reveal important effects of SPD and ifenprodil on the re-exposure-induced decrease in morphine-induced CPP, which may be promising for developing novel pharmacological strategies to treat opioid use disorder.
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Affiliation(s)
- Bruna A Girardi
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Center of Exact and Natural Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Shaiana Fabbrin
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Center of Exact and Natural Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Arithane L Wendel
- School of Pharmacy, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Carlos F Mello
- Graduate Program in Pharmacology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil.
| | - Maribel A Rubin
- Graduate Program in Biological Sciences: Toxicological Biochemistry, Center of Exact and Natural Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil. .,Graduate Program in Pharmacology, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, 97105-900, Brazil.
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74
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Tapia MA, Sage AS, Fullerton EI, Judd JM, Hildebrant PC, Will MJ, Lever SZ, Lever JR, Miller DK. The sigma receptor ligand N-phenylpropyl-N'-(4-methoxyphenethyl)3piperazine (YZ-067) enhances the cocaine conditioned-rewarding properties while inhibiting the development of sensitization of cocaine in mice. Psychopharmacology (Berl) 2020; 237:723-734. [PMID: 31822924 DOI: 10.1007/s00213-019-05411-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 11/18/2019] [Indexed: 11/28/2022]
Abstract
RATIONALE The N-phenylpropyl-N'-substituted piperazines SA-4503 (N-phenylpropyl-N'-(3,4-dimethoxyphenethyl)piperazine) and YZ-185 (N-phenylpropyl-N'-(3-methoxyphenethyl)piperazine) bind to sigma (σ) receptors and block the development of cocaine-induced conditioned place preference at concentrations that inhibit cocaine-induced hyperactivity. YZ-067 (N-phenylpropyl-N'-(4-methoxyphenethyl)piperazine) also binds to sigma receptors and attenuates cocaine-induced hyperactivity in mice. OBJECTIVES The present study determined the effect of YZ-067 on the development and expression of cocaine (66 μmol/kg or 33 μmol/kg) conditioned place preference (CPP) and locomotor sensitization in mice. RESULTS YZ-067 (10 or 31.6 μmol/kg) did not have intrinsic effects on place preference or place aversion. Interestingly, the 31.6 μmol/kg YZ-067 dose enhanced the development of cocaine place preference, while 10 μmol/kg YZ-067 attenuated the development of cocaine-induced locomotor sensitization. However, YZ-067 did not alter the expression of cocaine place preference nor cocaine-induced locomotor sensitization. In follow-up studies, YZ-067 did not affect performance in the zero maze or rotarod, indicating that sigma receptors probed by this ligand do not regulate anxiety-like or coordinated motor skill behaviors, respectively. CONCLUSION Overall, these results are consistent with previous studies demonstrating a role for sigma receptors in the behavioral effects of cocaine. However, the present findings also indicate that N-phenylpropyl-N'-substituted piperazines do not strictly block cocaine's behavioral effects and that sigma receptor may differentially mediate cocaine-induced hyperactivity and place conditioning.
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Affiliation(s)
- Melissa A Tapia
- Department of Psychological Sciences, University of Missouri, Columbia, MO, 65211, USA.
| | - Andrew S Sage
- Department of Psychological Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Emma I Fullerton
- Department of Psychological Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Jessica M Judd
- Department of Psychological Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Paige C Hildebrant
- Department of Psychological Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Matthew J Will
- Department of Psychological Sciences, University of Missouri, Columbia, MO, 65211, USA
| | - Susan Z Lever
- Department of Chemistry, University of Missouri, Columbia, MO, 65211, USA.,Research Reactor Center, University of Missouri, Columbia, MO, 65212, USA
| | - John R Lever
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, MO, 65211, USA.,Departments of Radiology, and Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, 65211, USA
| | - Dennis K Miller
- Department of Psychological Sciences, University of Missouri, Columbia, MO, 65211, USA
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75
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Rosa HZ, Barcelos RCS, Segat HJ, Roversi K, Dias VT, Milanesi LH, Burger ME. Physical exercise modifies behavioral and molecular parameters related to opioid addiction regardless of training time. Eur Neuropsychopharmacol 2020; 32:25-35. [PMID: 31899030 DOI: 10.1016/j.euroneuro.2019.12.111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 11/26/2019] [Accepted: 12/13/2019] [Indexed: 12/23/2022]
Abstract
Addiction is a devastating worldwide disorder that requires effective and innovative therapies. Physical exercise could be useful in addiction treatment because it shares a common neural circuit with addictive drugs. Based on this, molecular adaptations consequent to time of exercise in opioid exposed animals were evaluated. Rats were designed as sedentary (SED) or exercised (EXE). This last group was separated to perform three different periods of swimming: short-term (S-EXE), medium-term (M-EXE) and long-term (L-EXE) for 14, 28 and 42 days, respectively. On the last exercising week, one-half of the animals from SED and all animals from S-, M- and l-EXE were concomitantly exposed to morphine-conditioned place preference (CPP) paradigm and y-maze task for behavioral assessments followed by molecular assays in both Nucleus accumbens (NAc) and hippocampus. Between SED groups, morphine conditioning showed drug-CPP and increased dopamine transporter (DAT), dopamine receptor type-1 (D1R), type-2 (D2R) and glucocorticoid receptor (GR) in both brain areas in relation to saline group. Besides the small morphine-CPP in relation to SED group, all periods decreased DAT, D1R, and GR immunoreactivity in NAc, DAT and D1R in hippocampus, while D2R in both brain areas and GR in hippocampus were primarily decreased by L-EXE. Our findings show that even a short-term exercise modifies behaviors related to drug withdrawal, changing DA targets and GR, which are closely linked to addiction. Therefore, our outcomes involving physical exercise are interesting to perform a possible clinical trial, thus expanding the knowledge about drug addiction.
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Affiliation(s)
- H Z Rosa
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - R C S Barcelos
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
| | - H J Segat
- Programa de Pós-Graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, RS, Brazil
| | - Kr Roversi
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - V T Dias
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - L H Milanesi
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - M E Burger
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil; Programa de Pós-Graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, RS, Brazil; Departamento de Fisiologia e Farmacologia, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
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76
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Ahmed SH, Badiani A, Miczek KA, Müller CP. Non-pharmacological factors that determine drug use and addiction. Neurosci Biobehav Rev 2020; 110:3-27. [PMID: 30179633 PMCID: PMC6395570 DOI: 10.1016/j.neubiorev.2018.08.015] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 07/26/2018] [Accepted: 08/28/2018] [Indexed: 12/26/2022]
Abstract
Based on their pharmacological properties, psychoactive drugs are supposed to take control of the natural reward system to finally drive compulsory drug seeking and consumption. However, psychoactive drugs are not used in an arbitrary way as pure pharmacological reinforcement would suggest, but rather in a highly specific manner depending on non-pharmacological factors. While pharmacological effects of psychoactive drugs are well studied, neurobiological mechanisms of non-pharmacological factors are less well understood. Here we review the emerging neurobiological mechanisms beyond pharmacological reinforcement which determine drug effects and use frequency. Important progress was made on the understanding of how the character of an environment and social stress determine drug self-administration. This is expanded by new evidence on how behavioral alternatives and opportunities for drug instrumentalization generate different patterns of drug choice. Emerging evidence suggests that the neurobiology of non-pharmacological factors strongly determines pharmacological and behavioral drug action and may, thus, give rise for an expanded system's approach of psychoactive drug use and addiction.
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Affiliation(s)
- Serge H Ahmed
- Université de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, 146 rue Léo-Saignat, F-33000 Bordeaux, France; CNRS, Institut des Maladies Neurodégénératives, UMR 5293, 146 rue Léo-Saignat, F-33000 Bordeaux, France
| | - Aldo Badiani
- Department of Physiology and Pharmacology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; Sussex Addiction Research and Intervention Centre (SARIC), School of Psychology, University of Sussex, BN1 9RH Brighton, UK
| | - Klaus A Miczek
- Psychology Department, Tufts University, Bacon Hall, 530 Boston Avenue, Medford, MA 02155, USA; Department of Neuroscience, Sackler School of Graduate Biomedical Sciences, Boston, MA 02111, USA
| | - Christian P Müller
- Department of Psychiatry and Psychotherapy, University Clinic, Friedrich-Alexander-University Erlangen-Nuremberg, Schwabachanlage 6, 91054 Erlangen, Germany.
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77
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Daniels S, Horman T, Lapointe T, Melanson B, Storace A, Kennedy SH, Frey BN, Rizvi SJ, Hassel S, Mueller DJ, Parikh SV, Lam RW, Blier P, Farzan F, Giacobbe P, Milev R, Placenza F, Soares CN, Turecki G, Uher R, Leri F. Reverse translation of major depressive disorder symptoms: A framework for the behavioural phenotyping of putative biomarkers. J Affect Disord 2020; 263:353-366. [PMID: 31969265 DOI: 10.1016/j.jad.2019.11.108] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/13/2019] [Accepted: 11/22/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Reverse translating putative biomarkers of depression from patients to animals is complex because Major Depressive Disorder (MDD) is a highly heterogenous condition. This review proposes an approach to reverse translation based on relating relevant bio-behavioural functions in laboratory rodents to MDD symptoms. METHODS This systematic review outlines symptom clusters assessed by psychometric tests of MDD and antidepressant treatment response including the Montgomery-Åsberg Depression Rating Scale, the Hamilton Depression Rating Scale, and the Beck Depression Inventory. Symptoms were related to relevant behavioural assays in laboratory rodents. RESULTS The resulting battery of tests includes passive coping, anxiety-like behaviours, sleep, caloric intake, cognition, psychomotor functions, hedonic reactivity and aversive learning. These assays are discussed alongside relevant clinical symptoms of MDD, providing a framework through which reverse translation of a biomarker can be interpreted. LIMITATIONS Certain aspects of MDD may not be quantified by tests in laboratory rodents, and their biological significance may not always be of clinical relevance. CONCLUSIONS Using this reverse translation approach, it is possible to clarify the functional significance of a putative biomarker in rodents and hence translate its contribution to specific clinical symptoms, or clusters of symptoms.
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Affiliation(s)
- Stephen Daniels
- Department of Psychology and Neuroscience, University of Guelph, Guelph N1G 2W1, Ontario, Canada
| | - Thomas Horman
- Department of Psychology and Neuroscience, University of Guelph, Guelph N1G 2W1, Ontario, Canada
| | - Thomas Lapointe
- Department of Psychology and Neuroscience, University of Guelph, Guelph N1G 2W1, Ontario, Canada
| | - Brett Melanson
- Department of Psychology and Neuroscience, University of Guelph, Guelph N1G 2W1, Ontario, Canada
| | - Alexandra Storace
- Department of Psychology and Neuroscience, University of Guelph, Guelph N1G 2W1, Ontario, Canada
| | - Sidney H Kennedy
- University of Toronto Health Network, Toronto, Ontario, Canada; St. Michael's Hospital, Toronto, Ontario, Canada
| | | | - Sakina J Rizvi
- University of Toronto Health Network, Toronto, Ontario, Canada; St. Michael's Hospital, Toronto, Ontario, Canada
| | | | - Daniel J Mueller
- The Centre for Addiction and Mental Health, Toronto, Ontario, Canada
| | | | - Raymond W Lam
- The University of British Columbia, Vancouver, British Columbia, Canada
| | - Pierre Blier
- The Royal Institute of Mental Health Research, Ottawa, Ontario, Canada
| | - Faranak Farzan
- Simon Fraser University, Burnaby, British Columbia, Canada
| | - Peter Giacobbe
- University of Toronto Health Network, Toronto, Ontario, Canada
| | | | - Franca Placenza
- University of Toronto Health Network, Toronto, Ontario, Canada
| | | | | | - Rudolf Uher
- Dalhousie University, Halifax, Nova Scotia, Canada
| | - Francesco Leri
- Department of Psychology and Neuroscience, University of Guelph, Guelph N1G 2W1, Ontario, Canada.
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78
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Buie N, Sodha D, Scheinman SB, Steidl S. Rewarding effects of M4 but not M3 muscarinic cholinergic receptor antagonism in the rostromedial tegmental nucleus. Behav Brain Res 2020; 379:112340. [PMID: 31697984 DOI: 10.1016/j.bbr.2019.112340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/25/2019] [Accepted: 10/31/2019] [Indexed: 01/05/2023]
Abstract
The rostromedial tegmental nucleus (RMTg) receives inputs from the laterodorsal tegmental and pedunculopontine tegmental nuclei, the two principle brainstem cholinergic nuclei. We tested the effects of RMTg M3 and M4 muscarinic cholinergic receptor antagonism in a conditioned place preference (CPP) paradigm in mice. RMTg infusions of the M3 muscarinic cholinergic receptor antagonist 1,1-Dimethyl-4-diphenylacetoxypiperidinium iodide (4-DAMP) do not result in the acquisition of CPP but increase locomotor activation. By contrast, RMTg infusions of the M4 muscarinic cholinergic receptor antagonist Tropicamide result in the acquisition of CPP but do not increase locomotor activation. The rewarding effects of RMTg Tropicamide infusions are dopamine-dependent as systemic pre-treatment with the broad-spectrum dopamine receptor antagonist flupenthixol prevents the acquisition of CPP induced by RMTg Tropicamide infusions. Under conditions of systemic dopamine receptor blockade, RMTg Tropicamide infusions significantly increase locomotor activation. These data provide further support for an important role of endogenous cholinergic input to the RMTg in reward function and suggest that the contributions of RMTg cholinergic input to rewarding and locomotor-activating effects involve differential contributions of RMTg M4 and M3 muscarinic receptors, respectively.
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Affiliation(s)
- Nicole Buie
- Department of Psychology, Loyola University Chicago, 1032 West Sheridan Road, Chicago, IL, 60626, USA
| | - Dharm Sodha
- Department of Psychology, Loyola University Chicago, 1032 West Sheridan Road, Chicago, IL, 60626, USA
| | - Sarah B Scheinman
- Department of Psychology, Loyola University Chicago, 1032 West Sheridan Road, Chicago, IL, 60626, USA
| | - Stephan Steidl
- Department of Psychology, Loyola University Chicago, 1032 West Sheridan Road, Chicago, IL, 60626, USA.
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79
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Kogias G, Zheng F, Kalinichenko LS, Kornhuber J, Alzheimer C, Mielenz D, Müller CP. Swiprosin1/EFhd2 is involved in the monoaminergic and locomotor responses of psychostimulant drugs. J Neurochem 2020; 154:424-440. [DOI: 10.1111/jnc.14959] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 01/08/2020] [Accepted: 01/10/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Georgios Kogias
- Department of Psychiatry and Psychotherapy Friedrich‐Alexander University Erlangen‐Nürnberg Erlangen Germany
| | - Fang Zheng
- Institute of Physiology and Pathophysiology Friedrich‐Alexander University Erlangen‐Nürnberg Erlangen Germany
| | - Liubov S. Kalinichenko
- Department of Psychiatry and Psychotherapy Friedrich‐Alexander University Erlangen‐Nürnberg Erlangen Germany
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy Friedrich‐Alexander University Erlangen‐Nürnberg Erlangen Germany
| | - Christian Alzheimer
- Institute of Physiology and Pathophysiology Friedrich‐Alexander University Erlangen‐Nürnberg Erlangen Germany
| | - Dirk Mielenz
- Division of Molecular Immunology Department of Internal Medicine III Nikolaus‐Fiebiger‐Center University Clinic Friedrich‐Alexander University Erlangen‐Nürnberg Erlangen Germany
| | - Christian P. Müller
- Department of Psychiatry and Psychotherapy Friedrich‐Alexander University Erlangen‐Nürnberg Erlangen Germany
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80
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Zhang J, Yang J, Yang C, Chen T, Wang Z, Li J, Qin F, Deng Q, Zhang X. Sensitivity to Morphine Reward Associates With Gut Dysbiosis in Rats With Morphine-Induced Conditioned Place Preference. Front Psychiatry 2020; 11:631. [PMID: 33005148 PMCID: PMC7484999 DOI: 10.3389/fpsyt.2020.00631] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 06/16/2020] [Indexed: 12/19/2022] Open
Abstract
Gut microbiota has been found to establish a bidirectional relationship with the central nervous system. Variations of the gut microbiota has been implicated in various mental disorders, including opioid use disorders. Morphine exposure has been repeatedly found to disrupt the gut microbiota, but association between the gut microbiota and the sensitivity to morphine reward remains unknown. In this study the conditioned place preference (CPP) paradigm was used for morphine-treated rats and saline-treated rats. After the CPP procedure, the morphine-treated rats were divided equally into the low and high CPP (L- and H-CPP) groups according to the CPP scores. We adopted 16S rRNA sequencing for the fecal bacterial communities at baseline and post-conditioning. By comparing the morphine-treated group with saline-treated group, we found alterations of microbial composition in the morphine-treated group, but no significant differences in alpha diversity. The L-CPP group and H-CPP group differed in microbial composition both before and after morphine treatment. The relative abundance of certain taxa was correlated to the CPP scores, such as Alloprevotella and Romboutsia. This study provides direct evidence that morphine exposure alters the composition of the gut microbiota in rats and that microbial alterations are correlated to the sensitivity to morphine reward. These findings may help develop novel therapeutic and preventive strategies for opioid use disorder.
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Affiliation(s)
- Jingyuan Zhang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinic Research Center for Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Jun Yang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinic Research Center for Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Cheng Yang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinic Research Center for Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Ti Chen
- Clinical Laboratory, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Ziwei Wang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinic Research Center for Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Junyi Li
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinic Research Center for Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Fanglin Qin
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinic Research Center for Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Qijian Deng
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinic Research Center for Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Xiaojie Zhang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinic Research Center for Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
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81
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Nayak SU, Cicalese S, Tallarida C, Oliver CF, Rawls SM. Chemokine CCR5 and cocaine interactions in the brain: Cocaine enhances mesolimbic CCR5 mRNA levels and produces place preference and locomotor activation that are reduced by a CCR5 antagonist. Brain Behav Immun 2020; 83:288-292. [PMID: 31557508 PMCID: PMC6906231 DOI: 10.1016/j.bbi.2019.09.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 09/06/2019] [Accepted: 09/21/2019] [Indexed: 01/22/2023] Open
Abstract
C-C chemokine receptor type 5, also known as CCR5 or CD195, is best known as a viral co-receptor that facilitates entry of HIV into cells. Evidence that CCR5 knockout mice display fewer dopamine neurons, lower striatal dopamine levels, and reduced locomotor activation compared to wild types also suggest a link between CCR5 receptors and cocaine dependence. Here, we tested the hypothesis using male Sprague-Dawley rats that cocaine-induced locomotor activation and conditioned place preference (CPP) are inhibited by a FDA-approved CCR5 antagonist (maraviroc), and that CCR5 gene expression in mesolimbic substrates is enhanced by repeated cocaine exposure. Pretreatment with maraviroc (1, 2.5, 5 mg/kg, IP) reduced hyperlocomotion induced by acute cocaine (10 mg/kg) without affecting spontaneous locomotor activity. For CPP experiments, rats conditioned with cocaine (10 mg/kg × 4 days, IP) were injected with maraviroc (1, 2.5, 5 mg/kg, IP) before each injection of cocaine. Maraviroc dose-dependently inhibited development of cocaine CPP, with a dose of 5 mg/kg producing a significant reduction. In rats treated repeatedly with cocaine (10 mg/kg × 4 days, IP), CCR5 gene expression was upregulated in the nucleus accumbens and ventral tegmental area but mRNA levels of CCR5 ligands (i.e., CCL3, CCL4 and CCL5) were not affected. Our results suggest that mesolimbic CCR5 receptors are dysregulated by cocaine exposure and, similar to CXCR4 and CCR2 receptors, influence behavioral effects related to the abuse liability of cocaine.
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Affiliation(s)
- Sunil U Nayak
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Stephanie Cicalese
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Chris Tallarida
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Chicora F. Oliver
- Department of Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Scott M. Rawls
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA,Department of Pharmacology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
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82
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Neddenriep B, Bagdas D, Contreras KM, Ditre JW, Wolstenholme JT, Miles MF, Damaj MI. Pharmacological mechanisms of alcohol analgesic-like properties in mouse models of acute and chronic pain. Neuropharmacology 2019; 160:107793. [PMID: 31562845 DOI: 10.1016/j.neuropharm.2019.107793] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/17/2019] [Accepted: 09/22/2019] [Indexed: 12/16/2022]
Abstract
Alcohol use and chronic pain are highly comorbid. Acute alcohol use typically produces an analgesic effect. However, chronic use can worsen the progression of chronic pain. In rodent models, acute models of pain have primarily been used to investigate the relationship between alcohol and pain analgesia. Here, we use two models of chronic pain, chronic inflammatory and peripheral neuropathic pain, to investigate acute alcohol's antinociceptive and analgesic properties. We hypothesize that acute ethanol is acting through opioid receptors to create an analgesic-like effect in both reflexive and affective dimensions of pain. Using male and female C57BL/6J mice, oral ethanol administration (0-1.25 g/kg) showed a dose-dependent reversal of mechanical hypersensitivity in both Complete Freund's Adjuvant (CFA) and chronic constriction injury (CCI) models of chronic inflammatory and neuropathic pain. No sex differences were observed. Using the conditioned place preference (CPP) task to assess the subjective responses to ethanol's anti-nociceptive properties, CCI-injured animals showed a preference for the ethanol-paired side, suggesting a reduction in an aversive and pain-like state produced by nerve injury. These effects are likely mediated through the kappa and possibly the mu opioid systems, since ethanol-induced anti-nociception following CCI was fully reversed by pretreatment with the kappa selective antagonist, nor-BNI, or high doses of naltrexone. These data show that ethanol possesses analgesic-like properties in chronic inflammatory and neuropathic pain models in mice and provide new insight into ethanol as it relates to chronic pain.
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Affiliation(s)
- Bradley Neddenriep
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Virginia Commonwealth University, Richmond, VA, 23298-0613, USA; Translational Research Initiative for Pain and Neuropathy, Virginia Commonwealth University, Virginia Commonwealth University, Richmond, VA, 23298-0613, USA
| | - Deniz Bagdas
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Virginia Commonwealth University, Richmond, VA, 23298-0613, USA; Translational Research Initiative for Pain and Neuropathy, Virginia Commonwealth University, Virginia Commonwealth University, Richmond, VA, 23298-0613, USA
| | - Katherine M Contreras
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Virginia Commonwealth University, Richmond, VA, 23298-0613, USA; Translational Research Initiative for Pain and Neuropathy, Virginia Commonwealth University, Virginia Commonwealth University, Richmond, VA, 23298-0613, USA
| | - Joseph W Ditre
- Department of Psychology, Syracuse University, Syracuse, NY, USA
| | - Jennifer T Wolstenholme
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Virginia Commonwealth University, Richmond, VA, 23298-0613, USA; VCU-Alcohol Research Center, Virginia Commonwealth University, Virginia Commonwealth University, Richmond, VA, 23298-0613, USA
| | - Michael F Miles
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Virginia Commonwealth University, Richmond, VA, 23298-0613, USA; VCU-Alcohol Research Center, Virginia Commonwealth University, Virginia Commonwealth University, Richmond, VA, 23298-0613, USA
| | - M Imad Damaj
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Virginia Commonwealth University, Richmond, VA, 23298-0613, USA; Translational Research Initiative for Pain and Neuropathy, Virginia Commonwealth University, Virginia Commonwealth University, Richmond, VA, 23298-0613, USA.
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83
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Kim M, Jang WJ, Shakya R, Choi B, Jeong CH, Lee S. Current Understanding of Methamphetamine-Associated Metabolic Changes Revealed by the Metabolomics Approach. Metabolites 2019; 9:metabo9100195. [PMID: 31547093 PMCID: PMC6835349 DOI: 10.3390/metabo9100195] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/17/2019] [Accepted: 09/18/2019] [Indexed: 12/27/2022] Open
Abstract
Metabolomics is a powerful tool used in the description of metabolic system perturbations caused by diseases or abnormal conditions, and it usually involves qualitative and/or quantitative metabolome determination, accompanied by bioinformatics assessment. Methamphetamine is a psychostimulant with serious abuse potential and due to the absence of effective pharmacotherapy and a high recurrence potential, methamphetamine addiction is a grave issue. Moreover, its addiction mechanisms remain unclear, probably due to the lack of experimental models that reflect personal genetic variances and environmental factors determining drug addiction occurrence. The metabolic approach is only recently being used to study the metabolic effects induced by a variety of methamphetamine exposure statuses, in order to investigate metabolic disturbances related to the adverse effects and discover potential methamphetamine addiction biomarkers. To provide a critical overview of methamphetamine-associated metabolic changes revealed in recent years using the metabolomics approach, we discussed methamphetamine toxicity, applications of metabolomics in drug abuse and addiction studies, biological samples used in metabolomics, and previous studies on metabolic alterations in a variety of biological samples—including the brain, hair, serum, plasma, and urine—following methamphetamine exposure in animal studies. Metabolic alterations observed in animal brain and other biological samples after methamphetamine exposure were associated with neuronal and energy metabolism disruptions. This review highlights the significance of further metabolomics studies in the area of methamphetamine addiction research. These findings will contribute to a better understanding of metabolic changes induced by methamphetamine addiction progress and to the design of further studies targeting the discovery of methamphetamine addiction biomarkers and therapeutic targets.
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Affiliation(s)
- Minjeong Kim
- College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo-gu, Daegu 42601, Korea.
| | - Won-Jun Jang
- College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo-gu, Daegu 42601, Korea.
| | - Rupa Shakya
- College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo-gu, Daegu 42601, Korea.
| | - Boyeon Choi
- College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo-gu, Daegu 42601, Korea.
| | - Chul-Ho Jeong
- College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo-gu, Daegu 42601, Korea.
| | - Sooyeun Lee
- College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo-gu, Daegu 42601, Korea.
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84
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Azogu I, Cossette I, Mukunzi J, Ibeke O, Plamondon H. Sex-specific differences in adult cognition and neuroplasticity following repeated combinatory stress and TrkB receptor antagonism in adolescence. Horm Behav 2019; 113:21-37. [PMID: 30995444 DOI: 10.1016/j.yhbeh.2019.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 04/09/2019] [Accepted: 04/09/2019] [Indexed: 01/19/2023]
Abstract
Evidence supports brain-derived neurotrophic factor (BDNF) and its primary receptor tyrosine-related kinase B (TrkB) as targets in the treatment of mood disorders. This study characterized the impact of a 10-day combinatory stress paradigm (alternating days of restraint stress and forced swim) and administration of the selective TrkB antagonist ANA-12 (0.5 mg/kg, i.p.) during adolescence in male and female Wistar rats on adulthood behavioral and neurochemical responses. The social interaction/preference (SIT/SP), and Y maze conditioned place preference (YMCPP) and passive avoidance tests (YMPAT), initiated on PND 62, served to determine sex-related behavioral responses. Results support reduced sociability in females in the SIT/SP, but no impact of ANA-12 to regulate sociability or social memory. Blockade of TrkB during adolescence facilitated YMCPP-related reward behavior in both sexes, and reduced YMPAT fear conditioning in females. Following behavioral testing, rats were exposed to 5-min acute forced swim and brains collected 2 h post swim to determine effects of adolescent TrkB blockade and stress exposure on neurochemical regulators of stress and plasticity. Findings show elevated glucocorticoid receptor (GR-) and TrkB-immunoreactivity (ir) in the amygdalar central nucleus, and GR-ir in the hypothalamic paraventricular nucleus of females compared to males. In the hippocampal CA1, BDNF-ir was lower in females versus males, and GR-ir was elevated in stress versus non-stress males. Together, we demonstrate that inherent sex-specific differences, which may modulate impact of adolescence stress exposure and TrkB inhibition, differentially affect male and female adulthood behavior and biochemical response profiles, suggesting that these responses are in part conditioned by prior experience.
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Affiliation(s)
- Idu Azogu
- Behavioral Neuroscience Group, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier, Ottawa, ON, Canada
| | - Isabelle Cossette
- Behavioral Neuroscience Group, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier, Ottawa, ON, Canada
| | - Joana Mukunzi
- Behavioral Neuroscience Group, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier, Ottawa, ON, Canada
| | - Ogechi Ibeke
- Behavioral Neuroscience Group, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier, Ottawa, ON, Canada
| | - Helene Plamondon
- Behavioral Neuroscience Group, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier, Ottawa, ON, Canada.
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85
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Phelps BJ, Miller TM, Arens H, Hutchinson T, Lang KA, Muckey LM, Thompson N, Stanage S, Rahman S, Rawls SM. Preliminary evidence from planarians that cotinine establishes a conditioned place preference. Neurosci Lett 2019. [DOI: https://doi.org/10.1016/j.neulet.2019.03.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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86
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Influence of the fat/carbohydrate component of snack food on energy intake pattern and reinforcing properties in rodents. Behav Brain Res 2019; 364:328-333. [PMID: 30807810 DOI: 10.1016/j.bbr.2019.02.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 02/22/2019] [Accepted: 02/22/2019] [Indexed: 11/23/2022]
Abstract
Hedonic intake of strongly rewarding foods is independent from biological needs and, thus, a common cause of obesity. The effect of potato chips on energy intake in a snacking model could be explained by their fat/carbohydrate content (FCHc). The present study investigated if the FCHc shapes energy intake patterns and reward processing of satiated rodents. Modulation of energy intake patterns was studied in an established snacking model offering FCHc rich food for 3 × 10 min/day to satiated rats. Reward processing was analyzed by a previously established conditioned place preference tests in satiated mice. The limited access to FCHc rich food led to higher daily energy intake compared to days without access (110 ± 10 vs. 96 ± 5 kcal/day) indicating that fat/carbohydrate intake was not fully compensated by reducing standard chow intake during the rest of the day. Furthermore, fat/carbohydrate snacking led to binge eating episodes with up to 55% of the daily energy intake consumed during limited access. Forced withdrawal from fat/carbohydrate snacking opportunities for six weeks increased the total daily energy intake and the relative amount of energy consumed by FCHc after reintroducing fat/carbohydrate snacking. Snack food and fat/carbohydrate food were powerful food reinforcers in satiated mice in contrast to standard chow. Altogether, these data suggest that the FCHc of snack food has strong reinforcing properties, which are probably responsible for the significant modulation of the amount and pattern of food intake in ad libitum fed animals.
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87
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Synaptic Microtubule-Associated Protein EB3 and SRC Phosphorylation Mediate Structural and Behavioral Adaptations During Withdrawal From Cocaine Self-Administration. J Neurosci 2019; 39:5634-5646. [PMID: 31092585 DOI: 10.1523/jneurosci.0024-19.2019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/16/2019] [Accepted: 05/08/2019] [Indexed: 12/21/2022] Open
Abstract
Addictive behaviors, including relapse, are thought to depend in part on long-lasting drug-induced adaptations in dendritic spine signaling and morphology in the nucleus accumbens (NAc). While the influence of activity-dependent actin remodeling in these phenomena has been studied extensively, the role of microtubules and associated proteins remains poorly understood. We report that pharmacological inhibition of microtubule polymerization in the NAc inhibited locomotor sensitization to cocaine and contextual reward learning. We then investigated the roles of microtubule end-binding protein 3 (EB3) and SRC kinase in the neuronal and behavioral responses to volitionally administered cocaine. In synaptoneurosomal fractions from the NAc of self-administering male rats, the phosphorylation of SRC at an activating site was induced after 1 d of withdrawal, while EB3 levels were increased only after 30 d of withdrawal. Blocking SRC phosphorylation during early withdrawal by virally overexpressing SRCIN1, a negative regulator of SRC activity known to interact with EB3, abolished the incubation of cocaine craving in both male and female rats. Conversely, mimicking the EB3 increase observed after prolonged withdrawal increased the motivation to consume cocaine in male rats. In mice, the overexpression of either EB3 or SRCIN1 increased dendritic spine density and altered the spine morphology of NAc medium spiny neurons. Finally, a cocaine challenge after prolonged withdrawal recapitulated most of the synaptic protein expression profiles observed at early withdrawal. These findings suggest that microtubule-associated signaling proteins such as EB3 cooperate with actin remodeling pathways, notably SRC kinase activity, to establish and maintain long-lasting cellular and behavioral alterations following cocaine self-administration.SIGNIFICANCE STATEMENT Drug-induced morphological restructuring of dendritic spines of nucleus accumbens neurons is thought to be one of the cellular substrates of long-lasting drug-associated memories. The molecular basis of these persistent changes has remained incompletely understood. Here we implicate for the first time microtubule function in this process, together with key players such as microtubule-bound protein EB3 and synaptic SRC phosphorylation. We propose that microtubule and actin remodeling cooperate during withdrawal to maintain the plastic structural changes initially established by cocaine self-administration. This work opens new translational avenues for further characterization of microtubule-associated regulatory molecules as putative drug targets to tackle relapse to drug taking.
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88
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Mesbahzadeh B, Moradi-kor N, Abbasi-Maleki S. Zinc enhances the expression of morphine-induced conditioned place preference through dopaminergic and serotonergic systems. Biomol Concepts 2019; 10:51-61. [DOI: 10.1515/bmc-2019-0006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 01/15/2019] [Indexed: 11/15/2022] Open
Abstract
AbstractThe antidepressant-like effects of zinc (Zn) have been documented in some animal models of depression. In addition, antidepressants may reduce the abuse potential of opioids by affecting their rewarding effect. Hence, this study was performed to investigate the effect of Zn on the expression of morphine-induced conditioned place preference (CPP) in male rats. We used an unbiased CPP paradigm for investigating the effect of Zn. The intraperitoneal (i.p.) and intracerebroventricular (i.c.v.) administrations of Zn (5-20 mg/kg, i.p., and 10 nmol/rat, respectively) with or without morphine did not induce conditioned place aversion (CPA) or CPP during acquisition phase. However, the same i.p. and i.c.v. administrations of Zn induced morphine-like CPP in the expression phase. Pre-treatment with dopamine receptor antagonists (SCH23390, sulpiride, and haloperidol) and serotonin receptor antagonists (WAY100135, ketanserin, and ondansetron) reversed the enhancement effect of Zn on the expression of morphine-induced CPP (especially 20mg/kg, i.p. and 10 nmol/rat, i.c.v.). These findings suggest that acute i.p. and i.c.v administration of Zn might enhance the rewarding properties of morphine through involvement with dopaminergic and serotonergic neuronal systems.
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Affiliation(s)
- Behzad Mesbahzadeh
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | | | - Saeid Abbasi-Maleki
- Department of Pharmacology & Toxicology, Urmia Branch, Islamic Azad University, Urmia, Iran
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89
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Phelps BJ, Miller TM, Arens H, Hutchinson T, Lang KA, Muckey LM, Thompson N, Stanage S, Rahman S, Rawls SM. Preliminary evidence from planarians that cotinine establishes a conditioned place preference. Neurosci Lett 2019; 703:145-148. [PMID: 30890472 DOI: 10.1016/j.neulet.2019.03.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/12/2019] [Accepted: 03/13/2019] [Indexed: 02/03/2023]
Abstract
While the psychoactive stimulant nicotine has been the subject of extensive research, considerably less attention has focused on other compounds found in either tobacco smoke or that are nicotine metabolites. Recent papers have suggested that some of the compounds in question may either alter nicotine's effects or have reinforcing properties themselves, although they would only be experienced after consumption of tobacco. The potential for these compounds to function as reinforcers or to potentiate the reinforcing properties of nicotine merits investigation. To pursue this line of inquiry, we examined cotinine in a planarian model of environmental place preference. In the present study, planarians demonstrated that the compound cotinine, which is present in tobacco smoke, and is also the principal nicotine metabolite, establishes a conditioned place preference. These data represent the first ever demonstration that cotinine will establish a conditioned place preference in planarians and possibly contribute to the addictive properties of nicotine.
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Affiliation(s)
- Brady J Phelps
- Department of Psychology, Hansen Hall 029, 670A, South Dakota State University, Brookings, SD, 57007, United States.
| | - Tyler M Miller
- Department of Psychology, Hansen Hall 029, 670A, South Dakota State University, Brookings, SD, 57007, United States.
| | - Heath Arens
- Department of Psychology, Hansen Hall 029, 670A, South Dakota State University, Brookings, SD, 57007, United States
| | - Tayler Hutchinson
- Department of Psychology, Hansen Hall 029, 670A, South Dakota State University, Brookings, SD, 57007, United States
| | - Kaitlyn A Lang
- Department of Psychology, Hansen Hall 029, 670A, South Dakota State University, Brookings, SD, 57007, United States
| | - Linda M Muckey
- Department of Behavior Analysis and Therapy, Rehabilitation Institute, Southern Illinois University in Carbondale, Rehn Hall 1025 Lincoln Drive, Mail Code 4609, Carbondale, IL, 62901, United States.
| | - Nicholas Thompson
- Department of Psychology, Hansen Hall 029, 670A, South Dakota State University, Brookings, SD, 57007, United States
| | - Steven Stanage
- Department of Psychology, Hansen Hall 029, 670A, South Dakota State University, Brookings, SD, 57007, United States
| | - Shafiqur Rahman
- Department of Pharmaceutical Sciences, South Dakota State University SAV 265, Box 2202C, Brookings, SD, 57007, United States.
| | - Scott M Rawls
- Department of Pharmaceutical Sciences, Temple University, Lewis Katz School of Medicine, Medicine Education and Research Building, 3500 N. Broad Street, Philadelphia, PA, 19140, United States.
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90
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Metz VG, Segat HJ, Dias VT, Barcelos RCS, Maurer LH, Stiebe J, Emanuelli T, Burger ME, Pase CS. Omega-3 decreases D1 and D2 receptors expression in the prefrontal cortex and prevents amphetamine-induced conditioned place preference in rats. J Nutr Biochem 2019; 67:182-189. [PMID: 30951972 DOI: 10.1016/j.jnutbio.2019.02.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 02/13/2019] [Accepted: 02/28/2019] [Indexed: 01/09/2023]
Abstract
Amphetamine (AMPH) abuse is a serious public health problem due to the high addictive potential of this drug, whose use is related to severe brain neurotoxicity and memory impairments. So far, therapies for psychostimulant addiction have had limited efficacy. Omega-3 polyunsaturated fatty acids (n-3 PUFA) have shown beneficial influences on the prevention and treatment of several diseases that affect the central nervous system. Here, we assessed the influence of fish oil (FO), which is rich in n-3 PUFA, on withdrawal and relapse symptoms following re-exposure to AMPH. Male Wistar rats received d,l-AMPH or vehicle in the conditioned place preference (CPP) paradigm for 14 days. Then, half of each experimental group was treated with FO (3 g/kg, p.o.) for 14 days. Subsequently, animals were re-exposed to AMPH-CPP for three additional days, in order to assess relapse behavior. Our findings have evidenced that FO prevented relapse induced by AMPH reconditioning. While FO prevented AMPH-induced oxidative damages in the prefrontal cortex, molecular assays allowed us to observe that it was also able to modulate dopaminergic cascade markers (DAT, TH, VMAT-2, D1R and D2R) in the same brain area, thus preventing AMPH-induced molecular changes. To the most of our knowledge, this is the first study to show a natural alternative tool which is able to prevent psychostimulant relapse following drug withdrawal. This non-invasive and healthy nutraceutical may be considered as an adjuvant treatment in detoxification clinics.
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Affiliation(s)
- Vinícia Garzella Metz
- Programa de Pós-Graduação em Farmacologia-Universidade Federal de Santa Maria, RS, Brazil
| | - Hecson Jesser Segat
- Programa de Pós-Graduação em Bioquímica Toxicológica - Universidade Federal de Santa Maria, RS, Brazil
| | - Verônica Tironi Dias
- Programa de Pós-Graduação em Farmacologia-Universidade Federal de Santa Maria, RS, Brazil
| | | | - Luana Haselein Maurer
- Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos-Universidade Federal de Santa Maria, RS, Brazil
| | - Jéssica Stiebe
- Departamento de Tecnologia e Ciências dos Alimentos - Universidade Federal de Santa Maria, RS, Brazil
| | - Tatiana Emanuelli
- Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos-Universidade Federal de Santa Maria, RS, Brazil
| | | | - Camila Simonetti Pase
- Programa de Pós-Graduação em Farmacologia-Universidade Federal de Santa Maria, RS, Brazil; Universidade Federal do Pampa, Campus Uruguaiana, RS, Brazil.
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91
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Scherma M, Masia P, Satta V, Fratta W, Fadda P, Tanda G. Brain activity of anandamide: a rewarding bliss? Acta Pharmacol Sin 2019; 40:309-323. [PMID: 30050084 DOI: 10.1038/s41401-018-0075-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 05/20/2018] [Indexed: 12/11/2022] Open
Abstract
Anandamide is a lipid mediator that acts as an endogenous ligand of CB1 receptors. These receptors are also the primary molecular target responsible for the pharmacological effects of Δ9-tetrahydrocannabinol, the psychoactive ingredient in Cannabis sativa. Several studies demonstrate that anandamide exerts an overall modulatory effect on the brain reward circuitry. Several reports suggest its involvement in the addiction-producing actions of other abused drugs, and it can also act as a behavioral reinforcer in animal models of drug abuse. Importantly, all these effects of anandamide appear to be potentiated by pharmacological inhibition of its metabolic degradation. Enhanced brain levels of anandamide after treatment with inhibitors of fatty acid amide hydrolase, the main enzyme responsible for its degradation, seem to affect the rewarding and reinforcing actions of many drugs of abuse. In this review, we will provide an overview from a preclinical perspective of the current state of knowledge regarding the behavioral pharmacology of anandamide, with a particular emphasis on its motivational/reinforcing properties. We will also discuss how modulation of anandamide levels through inhibition of enzymatic metabolic pathways could provide a basis for developing new pharmaco-therapeutic tools for the treatment of substance use disorders.
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92
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The active heroin metabolite 6-acetylmorphine has robust reinforcing effects as assessed by self-administration in the rat. Neuropharmacology 2018; 150:192-199. [PMID: 30578794 DOI: 10.1016/j.neuropharm.2018.12.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 12/14/2022]
Abstract
Previous studies have suggested that at least some of the behavioral effects of heroin might be mediated by its active metabolite 6-acetylmorphine (6-AM). The aim of the present study was to investigate the reinforcing effects of 6-AM and its role in mediating those of heroin. We used an intravenous self-administration procedure in male Sprague-Dawley rats including four phases: acquisition, extinction, reinstatement of drug-seeking, and re-acquisition. Independent groups of rats readily learned to self-administer equimolar doses (0.135 μmol/kg) of either 6-AM (44.3 μg/kg) or heroin (50 μg/kg). Under a fixed ratio 1 (FR1) schedule of reinforcement, the rate of responding was the same for 6-AM and heroin, but it was significantly higher for 6-AM than for heroin under a FR2 schedule. A non-contingent infusion ('priming') of 0.068 μmol/kg of either 6-AM or heroin reinstated non-reinforced drug-seeking (relapse). The rats readily re-acquired self-administration behaviour when given access to one of two doses (0.068 and 0.135 μmol/kg) of 6-AM or heroin. Pretreatment with a specific monoclonal antibody (mAb) against 6-AM blocked the priming effect of 6-AM, and modified the rate of lever-pressing on re-acquisition of 6-AM self-administration in a manner compatible with a shift to the right of the dose-effect curve. The mAb did not affect heroin responding. The present results show that 6-AM possesses reinforcing effects similar to those of heroin. The lack of effect of 6-AM mAb on heroin priming and heroin self-administration calls for further studies to clarify the role of heroin and its metabolites in heroin reward. This article is part of the Special Issue entitled 'Opioid Neuropharmacology: Advances in treating pain and opioid addiction'.
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93
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Gross KS, Moore KM, Meisel RL, Mermelstein PG. mGluR5 Mediates Dihydrotestosterone-Induced Nucleus Accumbens Structural Plasticity, but Not Conditioned Reward. Front Neurosci 2018; 12:855. [PMID: 30515075 PMCID: PMC6255826 DOI: 10.3389/fnins.2018.00855] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 11/01/2018] [Indexed: 12/12/2022] Open
Abstract
Gonadal hormones play a vital role in driving motivated behavior. They not only modulate responses to naturally rewarding stimuli, but also influence responses to drugs of abuse. A commonality between gonadal hormones and drugs of abuse is that they both impact the neurocircuitry of reward, including the regulation of structural plasticity in the nucleus accumbens (NAc). Previous hormonal studies have focused on the mechanisms and behavioral correlates of estradiol-induced dendritic spine changes in the female NAc. Here we sought to determine the effects of androgens on medium spiny neuron (MSN) spine plasticity in the male NAc. Following treatment with the androgen receptor agonist dihydrotestosterone (DHT), MSNs in castrated male rats exhibited a significant decrease in dendritic spine density. This effect was isolated to the shell subregion of the NAc. The effect of DHT was dependent on mGluR5 activity, and local mGluR5 activation and subsequent endocannabinoid signaling produce an analogous NAc shell spine decrease. Somewhat surprisingly, DHT-induced conditioned place preference remained intact following systemic inhibition of mGluR5. These findings indicate that androgens can utilize mGluR signaling, similar to estrogens, to mediate changes in NAc dendritic structure. In addition, there are notable differences in the direction of spine changes, and site specificity of estrogen and androgen action, suggesting sex differences in the hormonal regulation of motivated behaviors.
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Affiliation(s)
- Kellie S Gross
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, United States.,Department of Neuroscience, University of Minnesota, Minneapolis, MN, United States
| | - Kelsey M Moore
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, United States.,Department of Neuroscience, University of Minnesota, Minneapolis, MN, United States
| | - Robert L Meisel
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, United States.,Department of Neuroscience, University of Minnesota, Minneapolis, MN, United States
| | - Paul G Mermelstein
- Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, United States.,Department of Neuroscience, University of Minnesota, Minneapolis, MN, United States
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94
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Animal models of psychoactive drug use and addiction – Present problems and future needs for translational approaches. Behav Brain Res 2018. [DOI: 10.1016/j.bbr.2017.06.028] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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95
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Nona CN, Hendershot CS, Lê AD. Behavioural sensitization to alcohol: Bridging the gap between preclinical research and human models. Pharmacol Biochem Behav 2018; 173:15-26. [DOI: 10.1016/j.pbb.2018.08.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 07/31/2018] [Accepted: 08/07/2018] [Indexed: 12/28/2022]
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Paul ES, Edgar JL, Caplen G, Nicol CJ. Examining affective structure in chickens: valence, intensity, persistence and generalization measured using a Conditioned Place Preference Test. Appl Anim Behav Sci 2018; 207:39-48. [PMID: 30283162 PMCID: PMC6131270 DOI: 10.1016/j.applanim.2018.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/26/2018] [Accepted: 07/12/2018] [Indexed: 02/06/2023]
Abstract
When measuring animals' valenced behavioural responses to stimuli, the Conditioned Place Preference (CPP) test goes a step further than many approach-based and avoidance-based tests by establishing whether a learned preference for, or aversion to, the location in which the stimulus was encountered can be generated. We designed a novel, four-chambered CPP test to extend the capability of the usual CPP paradigm to provide information on four key features of animals' affective responses: valence, scale, persistence and generalization. Using this test, we investigated the affective responses of domestic chickens (Gallus gallus domesticus) to four potentially aversive stimuli: 1. Puffs of air; 2. Sight of (robotic) snake; 3. Sprays of water; 4. Sound of conspecific alarm calls. We found conditioned avoidance of locations associated with the air puffs and water sprays (Friedman's χ2 (3) = 13.323 p > .005; χ2 (3) = 14.235 p > .005), but not with the snake and alarm calls. The scale of the learned avoidance was similar for the air puff and water spray stimuli, but persistence and generalization differed. We conclude that the four chambered CPP test can have a valuable role to play in making multi-feature measurements of stimulus-generated affective responses, and we highlight the value of such measurements for improving our understanding of the structure of affect in chickens and other animals.
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Affiliation(s)
- Elizabeth S. Paul
- Bristol Veterinary School, University of Bristol, Langford House, Langford, Bristol, BS40 5DU, UK
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97
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Scheggi S, De Montis MG, Gambarana C. Making Sense of Rodent Models of Anhedonia. Int J Neuropsychopharmacol 2018; 21:1049-1065. [PMID: 30239762 PMCID: PMC6209858 DOI: 10.1093/ijnp/pyy083] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 09/18/2018] [Indexed: 01/04/2023] Open
Abstract
A markedly reduced interest or pleasure in activities previously considered pleasurable is a main symptom in mood disorder and psychosis and is often present in other psychiatric disorders and neurodegenerative diseases. This condition can be labeled as "anhedonia," although in its most rigorous connotation the term refers to the lost capacity to feel pleasure that is one aspect of the complex phenomenon of processing and responding to reward. The responses to rewarding stimuli are relatively easy to study in rodents, and the experimental conditions that consistently and persistently impair these responses are used to model anhedonia. To this end, long-term exposure to environmental aversive conditions is primarily used, and the resulting deficits in reward responses are often accompanied by other deficits that are mainly reminiscent of clinical depressive symptoms. The different components of impaired reward responses induced by environmental aversive events can be assessed by different tests or protocols that require different degrees of time allocation, technical resources, and equipment. Rodent models of anhedonia are valuable tools in the study of the neurobiological mechanisms underpinning impaired behavioral responses and in the screening and characterization of drugs that may reverse these behavioral deficits. In particular, the antianhedonic or promotivational effects are relevant features in the spectrum of activities of drugs used in mood disorders or psychosis. Thus, more than the model, it is the choice of tests that is crucial since it influences which facets of anhedonia will be detected and should be tuned to the purpose of the study.
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Affiliation(s)
- Simona Scheggi
- Department of Molecular and Developmental Medicine, University of Siena
| | | | - Carla Gambarana
- Department of Molecular and Developmental Medicine, University of Siena,Correspondence: Carla Gambarana, Department of Molecular and Developmental Medicine, University of Siena, Via Aldo Moro, 2 – 53100 Siena, Italy ()
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98
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Liu JF, Tian J, Li JX. Modulating reconsolidation and extinction to regulate drug reward memory. Eur J Neurosci 2018; 50:2503-2512. [PMID: 30113098 DOI: 10.1111/ejn.14072] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 06/20/2018] [Accepted: 06/28/2018] [Indexed: 01/11/2023]
Abstract
Drug addiction is an aberrant memory that shares the same memory processes as other memories. Brief exposure to drug-associated cues could result in reconsolidation, a hypothetical process during which original memory could be updated. In contrast, longer exposure times to drug-associated cues could trigger extinction, a process that decreases the conditioned responding. In this review, we discuss the pharmacological and non-pharmacological manipulations on the reconsolidation and extinction that could be used to interfere with drug reward memories. Pharmacological agents such as β-adrenergic receptor antagonist propranolol can interfere with reconsolidation to disrupt drug reward memory. Pharmacological agents such as the NMDA receptor glycine site agonists d-cycloserine and d-serine can facilitate extinction and then attenuate the expression of drug reward memory. Besides pharmacological interventions, drug-free behavioral approaches by utilizing the reconsolidation and extinction, such as 'post-retrieval extinction' and 'UCS-retrieval extinction', are also effective to erase or inhibit the recall of drug reward memory. Taken together, pharmacological modulation and non-pharmacological modulation of reconsolidation and extinction are promising approaches to regulate drug reward memory and prevent relapse.
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Affiliation(s)
- Jian-Feng Liu
- Department of Pharmacology and Toxicology, University at Buffalo, The State University of New York, 955 Main Street, Buffalo, NY, 14203, USA
| | - Jingwei Tian
- Department of Pharmacology and Toxicology, University at Buffalo, The State University of New York, 955 Main Street, Buffalo, NY, 14203, USA.,School of Pharmacy, Yantai University, Yantai, Shandong Province, China
| | - Jun-Xu Li
- Department of Pharmacology and Toxicology, University at Buffalo, The State University of New York, 955 Main Street, Buffalo, NY, 14203, USA
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Microinjection of the mGluR2/3 agonist, LY379268, into the nucleus accumbens attenuates extinction latencies and the reinstatement of morphine-induced conditioned place preference in rats. Behav Pharmacol 2018; 29:385-392. [DOI: 10.1097/fbp.0000000000000375] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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100
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Role of D1-like and D2-like dopamine receptors within the ventral tegmental area in stress-induced and drug priming-induced reinstatement of morphine seeking in rats. Behav Pharmacol 2018; 29:426-436. [DOI: 10.1097/fbp.0000000000000381] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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