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Zhornitsky S, Oliva HNP, Jayne LA, Allsop ASA, Kaye AP, Potenza MN, Angarita GA. Changes in synaptic markers after administration of ketamine or psychedelics: a systematic scoping review. Front Psychiatry 2023; 14:1197890. [PMID: 37435405 PMCID: PMC10331617 DOI: 10.3389/fpsyt.2023.1197890] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/05/2023] [Indexed: 07/13/2023] Open
Abstract
Background Ketamine and psychedelics have abuse liability. They can also induce "transformative experiences" where individuals experience enhanced states of awareness. This enhanced awareness can lead to changes in preexisting behavioral patterns which could be beneficial in the treatment of substance use disorders (SUDs). Preclinical and clinical studies suggest that ketamine and psychedelics may alter markers associated with synaptic density, and that these changes may underlie effects such as sensitization, conditioned place preference, drug self-administration, and verbal memory performance. In this scoping review, we examined studies that measured synaptic markers in animals and humans after exposure to ketamine and/or psychedelics. Methods A systematic search was conducted following PRISMA guidelines, through PubMed, EBSCO, Scopus, and Web of Science, based on a published protocol (Open Science Framework, DOI: 10.17605/OSF.IO/43FQ9). Both in vivo and in vitro studies were included. Studies on the following synaptic markers were included: dendritic structural changes, PSD-95, synapsin-1, synaptophysin-1, synaptotagmin-1, and SV2A. Results Eighty-four studies were included in the final analyses. Seventy-one studies examined synaptic markers following ketamine treatment, nine examined psychedelics, and four examined both. Psychedelics included psilocybin/psilocin, lysergic acid diethylamide, N,N-dimethyltryptamine, 2,5-dimethoxy-4-iodoamphetamine, and ibogaine/noribogaine. Mixed findings regarding synaptic changes in the hippocampus and prefrontal cortex (PFC) have been reported when ketamine was administered in a single dose under basal conditions. Similar mixed findings were seen under basal conditions in studies that used repeated administration of ketamine. However, studies that examined animals during stressful conditions found that a single dose of ketamine counteracted stress-related reductions in synaptic markers in the hippocampus and PFC. Repeated administration of ketamine also counteracted stress effects in the hippocampus. Psychedelics generally increased synaptic markers, but results were more consistently positive for certain agents. Conclusion Ketamine and psychedelics can increase synaptic markers under certain conditions. Heterogeneous findings may relate to methodological differences, agents administered (or different formulations of the same agent), sex, and type of markers. Future studies could address seemingly mixed results by using meta-analytical approaches or study designs that more fully consider individual differences.
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Affiliation(s)
- Simon Zhornitsky
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, United States
| | - Henrique N. P. Oliva
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, United States
| | - Laura A. Jayne
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, United States
| | - Aza S. A. Allsop
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, United States
| | - Alfred P. Kaye
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Connecticut Mental Health Center, New Haven, CT, United States
- Clinical Neurosciences Division, VA National Center for PTSD, West Haven, CT, United States
| | - Marc N. Potenza
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Connecticut Mental Health Center, New Haven, CT, United States
- Child Study Center, Yale University School of Medicine, New Haven, CT, United States
- Department of Neuroscience, Yale University, New Haven, CT, United States
- Connecticut Council on Problem Gambling, Hartford, CT, United States
- Wu Tsai Institute, Yale University, New Haven, CT, United States
| | - Gustavo A. Angarita
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, United States
- Clinical Neuroscience Research Unit, Connecticut Mental Health Center, New Haven, CT, United States
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Wang Q, Qin F, Wang Y, Wang Z, Lin W, Li Z, Liu Q, Mu X, Wang H, Lu S, Jiang Y, Lu S, Wang Q, Lu Z. Normalization of the H3K9me2/H3K14ac-ΔFosB pathway in the nucleus accumbens underlying the reversal of morphine-induced behavioural and synaptic plasticity by Compound 511. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 108:154467. [PMID: 36252464 DOI: 10.1016/j.phymed.2022.154467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 09/10/2022] [Accepted: 09/18/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Although opioid agonist-based treatments are considered the first-line treatment for opioid use disorders, nonopioid alternatives are urgently needed to combat the inevitable high relapse rates. Compound 511 is a formula derived from ancient traditional Chinese medical literature on opiate rehabilitation. Previously, we observed that Compound 511 could effectively prevent the acquisition of conditioned place preference (CPP) during early morphine exposure. However, its effects on drug-induced reinstatement remain unclear. PURPOSE This study aims to estimate the potential of Compound 511 for the therapeutic intervention of opioid relapse in rodent models and explore the potential mechanisms underlying the observed actions. STUDY DESIGN/METHODS The CPP and locomotor sensitization paradigm were established to evaluate the therapeutic effect of Compound 511 treatment on morphine-induced neuroadaptations, followed by immunofluorescence and western blot (WB) analysis of the synaptic markers PSD-95 and Syn-1. Furthermore, several addiction-associated transcription factors and epigenetic marks were examined by qPCR and WB, respectively. Furthermore, the key active ingredients and targets of Compound 511 were further excavated by network pharmacology approach and experimental validation. RESULTS The results proved that Compound 511 treatment during abstinence blunted both the reinstatement of morphine-evoked CPP and locomotor sensitization, accompanied by the normalization of morphine-induced postsynaptic plasticity in the nucleus accumbens (NAc). Additionally, Compound 511 was shown to exert a selectively repressive influence on morphine-induced hyperacetylation at H3K14 and a reduction in H3K9 dimethylation as well as ΔFosB activation and accumulation in the NAc. Finally, two herbal ingredients of Compound 511 and six putative targets involved in the regulation of histone modification were identified. CONCLUSION Our findings indicated that Compound 511 could block CPP reinstatement and locomotor sensitization predominantly via the reversal of morphine-induced postsynaptic plasticity through epigenetic mechanisms. Additionally, 1-methoxy-2,3-methylenedioxyxanthone and 1,7-dimethoxyxanthone may serve as key ingredients of Compound 511 by targeting specific epigenetic enzymes. This study provided an efficient nonopioid treatment against opioid addiction.
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Affiliation(s)
- Qisheng Wang
- Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Fenfen Qin
- Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yuxuan Wang
- Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Zijing Wang
- Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Weixin Lin
- Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Zhonghao Li
- Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Qingyang Liu
- Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Xinru Mu
- Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Hui Wang
- Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Shang Lu
- Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yongwei Jiang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Shengfeng Lu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Qian Wang
- College of International Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhigang Lu
- Nanjing Hospital of Chinese Medicine affiliated to Nanjing University of Chinese Medicine, Nanjing, 210022, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine in Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, Nanjing 210023, China.
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Fernández-Teruel A, Oliveras I, Cañete T, Rio-Álamos C, Tapias-Espinosa C, Sampedro-Viana D, Sánchez-González A, Sanna F, Torrubia R, González-Maeso J, Driscoll P, Morón I, Torres C, Aznar S, Tobeña A, Corda MG, Giorgi O. Neurobehavioral and neurodevelopmental profiles of a heuristic genetic model of differential schizophrenia- and addiction-relevant features: The RHA vs. RLA rats. Neurosci Biobehav Rev 2021; 131:597-617. [PMID: 34571119 DOI: 10.1016/j.neubiorev.2021.09.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 12/26/2022]
Abstract
The Roman High- (RHA) and Low-(RLA) avoidance rat lines/strains were generated through bidirectional selective breeding for rapid (RHA) vs. extremely poor (RLA) two-way active avoidance acquisition. Compared with RLAs and other rat strains/stocks, RHAs are characterized by increased impulsivity, deficits in social behavior, novelty-induced hyper-locomotion, impaired attentional/cognitive abilities, vulnerability to psychostimulant sensitization and drug addiction. RHA rats also exhibit decreased function of the prefrontal cortex (PFC) and hippocampus, increased functional activity of the mesolimbic dopamine system and a dramatic deficit of central metabotropic glutamate-2 (mGlu2) receptors (due to a stop codon mutation at cysteine 407 in Grm2 -cys407*-), along with increased density of 5-HT2A receptors in the PFC, alterations of several synaptic markers and increased density of pyramidal "thin" (immature) dendrític spines in the PFC. These characteristics suggest an immature brain of RHA rats, and are reminiscent of schizophrenia features like hypofrontality and disruption of the excitation/inhibition cortical balance. RHA rats represent a promising heuristic model of neurodevelopmental schizophrenia-relevant features and comorbidity with drug addiction vulnerability.
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Affiliation(s)
- Alberto Fernández-Teruel
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain.
| | - Ignasi Oliveras
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - Toni Cañete
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain
| | | | - Carles Tapias-Espinosa
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - Daniel Sampedro-Viana
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - Ana Sánchez-González
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - Francesco Sanna
- Department of Life and Environmental Sciences (DiSVA), University of Cagliari, Italy
| | - Rafael Torrubia
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain
| | - Javier González-Maeso
- Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | | | - Ignacio Morón
- Department of Psychobiology and Centre of Investigation of Mind, Brain, and Behaviour (CIMCYC), University of Granada, Spain
| | - Carmen Torres
- Department of Psychology, University of Jaén, 23071, Jaén, Spain.
| | - Susana Aznar
- Research Laboratory for Stereology and Neuroscience, Bispebjerg Copenhagen University Hospital, 2400, Copenhagen, Denmark.
| | - Adolf Tobeña
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Autonomous University of Barcelona, 08193, Bellaterra, Barcelona, Spain.
| | - Maria G Corda
- Department of Life and Environmental Sciences (DiSVA), University of Cagliari, Italy.
| | - Osvaldo Giorgi
- Department of Life and Environmental Sciences (DiSVA), University of Cagliari, Italy.
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Wen D, Hui R, Liu Y, Luo Y, Wang J, Shen X, Xie B, Yu F, Cong B, Ma C. Molecular hydrogen attenuates methamphetamine-induced behavioral sensitization and activation of ERK-ΔFosB signaling in the mouse nucleus accumbens. Prog Neuropsychopharmacol Biol Psychiatry 2020; 97:109781. [PMID: 31629777 DOI: 10.1016/j.pnpbp.2019.109781] [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: 07/30/2019] [Revised: 09/30/2019] [Accepted: 10/06/2019] [Indexed: 12/20/2022]
Abstract
Methamphetamine (METH) is one of the most prevalently used illegal psychostimulants in many countries. Continuous exposure to METH leads to behavioral sensitization in animals, which can be used as a behavioral model with many mechanisms in common with relapse in humans. Molecular hydrogen has recently gained attention for its potential as a novel healthcare product with preventive and therapeutic applicability to a wide range of pathological conditions. However, it remains unclear whether and, if so, how hydrogen regulates METH-induced behavioral abnormalities. In the present study, we investigated the roles of molecular hydrogen on the acquisition and transfer of METH-induced behavioral sensitization and the accompanying changes in ERK phosphorylation and ΔFosB activation in the nucleus accumbens (NAc) of mice. To this end, male C57BL/6 mice received METH (0.1, 0.5 and 1.0 mg/kg, i.p.) injections for 7 days followed by a METH challenge (0.1, 0.5 and 1.0 mg/kg, i.p.) after a 7-day transfer period. Molecular hydrogen, delivered through a hydrogen-rich saline (HRS) injection (10 mL/kg, i.p., 3-h interval), was administered during the acquisition and transfer periods. We found that HRS administration was able to inhibit the acquisition and transfer of 0.1 and 0.5 mg/kg METH-induced behavioral sensitization to a certain extent, thereby attenuating the expression of behavioral sensitization. The HRS injections alone did not induce any obvious changes in locomotor activity in mice. Intriguingly, the increases in pERK and ΔFosB in the NAc, which accompanied the METH-induced behavioral sensitization, were also attenuated by the HRS treatments. Due to the anti-oxidative function of molecular hydrogen, the HRS injections reduced METH-induced reactive oxygen species and malondialdehyde generation in the NAc. These results suggest that molecular hydrogen serves as an anti-oxidative agent with potentially therapeutic applicability to the treatment of METH addicts.
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Affiliation(s)
- Di Wen
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Province, Shijiazhuang 050017, PR China
| | - Rongji Hui
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Province, Shijiazhuang 050017, PR China
| | - Yi Liu
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Province, Shijiazhuang 050017, PR China
| | - Yixiao Luo
- Key Laboratory of Molecular Epidemiology of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410081,China
| | - Jian Wang
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Province, Shijiazhuang 050017, PR China
| | - Xi Shen
- College of Public Health, Hebei Medical University, Hebei Province, Shijiazhuang 050017, PR China
| | - Bing Xie
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Province, Shijiazhuang 050017, PR China
| | - Feng Yu
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Province, Shijiazhuang 050017, PR China
| | - Bin Cong
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Province, Shijiazhuang 050017, PR China.
| | - Chunling Ma
- College of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular Identification, Hebei Province, Shijiazhuang 050017, PR China.
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Sánchez-González A, Oliveras I, Río-Álamos C, Piludu MA, Gerbolés C, Tapias-Espinosa C, Tobeña A, Aznar S, Fernández-Teruel A. Dissociation between schizophrenia-relevant behavioral profiles and volumetric brain measures after long-lasting social isolation in Roman rats. Neurosci Res 2019; 155:43-55. [PMID: 31306676 DOI: 10.1016/j.neures.2019.07.002] [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: 01/21/2019] [Revised: 07/02/2019] [Accepted: 07/05/2019] [Indexed: 11/29/2022]
Abstract
Social isolation rearing of rodents is an environmental manipulation known to induce or potentiate psychotic-like symptoms and attentional and cognitive impairments relevant for schizophrenia. When subjected to a 28-week isolation rearing treatment, the Roman high-avoidance (RHA-I) rats display the common behavioral social isolation syndrome, with prepulse inhibition (PPI) deficits, hyperactivity, increased anxiety responses and learning/memory impairments when compared to their low-avoidance (RLA-I) counterparts. These results add face validity to the RHA-I rats as an animal model for schizophrenia-relevant behavioral and cognitive profiles and confirm previous results. The aim here was to further investigate the neuroanatomical effects of the isolation rearing, estimated through volume differences in medial prefrontal cortex (mPFC), dorsal striatum (dSt) and hippocampus (HPC). Results showed a global increase in volume in the mPFC in the isolated rats of both strains, as well as strain effects (RLA > RHA) in the three brain regions. These unexpected but robust results, might have unveiled some kind of compensatory mechanisms due to the particularly long-lasting isolation rearing period, much longer than those commonly used in the literature (which usually range from 4 to 12 weeks).
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Affiliation(s)
- A Sánchez-González
- Dept. Psychiatry & Forensic Medicine, Institute of Neurosciences, Universidad Autónoma de Barcelona, Barcelona, Spain.
| | - I Oliveras
- Dept. Psychiatry & Forensic Medicine, Institute of Neurosciences, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - C Río-Álamos
- Dept. Psychology, School of Medicine, Austral University of Chile, Valdivia, Chile
| | - M A Piludu
- Dept. of Life and Environmental Sciences, Section of Pharmaceutical, Pharmacological and Nutraceutical Sciences, University of Cagliari, Cagliari, Italy
| | - C Gerbolés
- Dept. Psychiatry & Forensic Medicine, Institute of Neurosciences, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - C Tapias-Espinosa
- Dept. Psychiatry & Forensic Medicine, Institute of Neurosciences, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - A Tobeña
- Dept. Psychiatry & Forensic Medicine, Institute of Neurosciences, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - S Aznar
- Research Laboratory for Stereology and Neuroscience, Bispebjerg and Frederiksberg Hospitals, Copenhagen, Denmark.
| | - A Fernández-Teruel
- Dept. Psychiatry & Forensic Medicine, Institute of Neurosciences, Universidad Autónoma de Barcelona, Barcelona, Spain.
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Giorgi O, Corda MG, Fernández-Teruel A. A Genetic Model of Impulsivity, Vulnerability to Drug Abuse and Schizophrenia-Relevant Symptoms With Translational Potential: The Roman High- vs. Low-Avoidance Rats. Front Behav Neurosci 2019; 13:145. [PMID: 31333426 PMCID: PMC6624787 DOI: 10.3389/fnbeh.2019.00145] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 06/18/2019] [Indexed: 12/14/2022] Open
Abstract
The bidirectional selective breeding of Roman high- (RHA) and low-avoidance (RLA) rats for respectively rapid vs. poor acquisition of active avoidant behavior has generated two lines/strains that differ markedly in terms of emotional reactivity, with RHA rats being less fearful than their RLA counterparts. Many other behavioral traits have been segregated along the selection procedure; thus, compared with their RLA counterparts, RHA rats behave as proactive copers in the face of aversive conditions, display a robust sensation/novelty seeking (SNS) profile, and show high impulsivity and an innate preference for natural and drug rewards. Impulsivity is a multifaceted behavioral trait and is generally defined as a tendency to express actions that are poorly conceived, premature, highly risky or inappropriate to the situation, that frequently lead to unpleasant consequences. High levels of impulsivity are associated with several neuropsychiatric conditions including attention-deficit hyperactivity disorder, obsessive-compulsive disorder, schizophrenia, and drug addiction. Herein, we review the behavioral and neurochemical differences between RHA and RLA rats and survey evidence that RHA rats represent a valid genetic model, with face, construct, and predictive validity, to investigate the neural underpinnings of behavioral disinhibition, novelty seeking, impulsivity, vulnerability to drug addiction as well as deficits in attentional processes, cognitive impairments and other schizophrenia-relevant traits.
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Affiliation(s)
- Osvaldo Giorgi
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Maria G Corda
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
| | - Alberto Fernández-Teruel
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Universitat Autónoma de Barcelona, Barcelona, Spain
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7
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Río-Álamos C, Piludu MA, Gerbolés C, Barroso D, Oliveras I, Sánchez-González A, Cañete T, Tapias-Espinosa C, Sampedro-Viana D, Torrubia R, Tobeña A, Fernández-Teruel A. Volumetric brain differences between the Roman rat strains: Neonatal handling effects, sensorimotor gating and working memory. Behav Brain Res 2019; 361:74-85. [DOI: 10.1016/j.bbr.2018.12.033] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 11/23/2018] [Accepted: 12/17/2018] [Indexed: 12/20/2022]
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Tapias-Espinosa C, Río-Álamos C, Sampedro-Viana D, Gerbolés C, Oliveras I, Sánchez-González A, Tobeña A, Fernández-Teruel A. Increased exploratory activity in rats with deficient sensorimotor gating: a study of schizophrenia-relevant symptoms with genetically heterogeneous NIH-HS and Roman rat strains. Behav Processes 2018; 151:96-103. [DOI: 10.1016/j.beproc.2018.03.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/13/2018] [Accepted: 03/16/2018] [Indexed: 12/24/2022]
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Giménez-Llort L, Guitart-Masip M, Tobeña A, Fernández-Teruel A, Johansson B. Distinct phenotypes of spontaneous activity and induction of amphetamine sensitization in inbred Roman high- and low-avoidance rats: Vulnerability and protection. Neurosci Lett 2018. [PMID: 29522836 DOI: 10.1016/j.neulet.2018.03.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The psychogenetically selected Roman high- (RHA) and low-avoidance (RLA) rats are being proposed as a valuable animal model of individual vulnerability to the two distinct neurobiological mechanisms of behavioral sensitization to psychostimulants, namely induction and expression. Most hallmarks of their divergent phenotypes are also found in the inbred RHA (RHA-I) and RLA (RLA-I) strains. For instance, they differ in the expression of sensitization to amphetamine. However, the pattern of spontaneous activity of the inbred rats seems to differ from that of outbred Roman strains. The present work shows the relevance of analyzing spontaneous activity as a covariant in order to determine the significance of day effect in the induction of behavioral sensitization to amphetamine (regime: 11 days, 1 mg/kg, i.p.) in the inbred strains and, for comparison, the standard low activity Sprague-Dawley (SD) strain. Our results also confirm that, in parallel to the outbred strains, only inbred RHA rats showed sensitization during the induction phase, here detectable from day 9 of treatment, while RLA-I and SD strains did not. Inbred RLA rats provide an interesting model to study individual resistance to sensitization, with nuances due to their underlying high spontaneous activity phenotype.
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Affiliation(s)
- Lydia Giménez-Llort
- Unitat de Psicologia Mèdica, Departament de Psiquiatria i Medicina Legal, Institut de Neurociències, Facultat de Medicina, Universitat Autònoma de Barcelona, Spain.
| | - Marc Guitart-Masip
- Unitat de Psicologia Mèdica, Departament de Psiquiatria i Medicina Legal, Institut de Neurociències, Facultat de Medicina, Universitat Autònoma de Barcelona, Spain
| | - Adolf Tobeña
- Unitat de Psicologia Mèdica, Departament de Psiquiatria i Medicina Legal, Institut de Neurociències, Facultat de Medicina, Universitat Autònoma de Barcelona, Spain
| | - Albert Fernández-Teruel
- Unitat de Psicologia Mèdica, Departament de Psiquiatria i Medicina Legal, Institut de Neurociències, Facultat de Medicina, Universitat Autònoma de Barcelona, Spain
| | - Björn Johansson
- Department of Molecular Medicine, Karolinska Institutet and Department of Geriatrics, Karolinska University Hospital, Sweden
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Tournier BB, Dimiziani A, Tsartsalis S, Millet P, Ginovart N. Different effects of chronic THC on the neuroadaptive response of dopamine D2/3 receptor-mediated signaling in roman high- and roman low-avoidance rats. Synapse 2018; 72. [DOI: 10.1002/syn.22023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 12/01/2017] [Accepted: 12/18/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Benjamin B. Tournier
- Department of Mental Health and Psychiatry, Laboratory for Translational Imaging in Psychiatric Neuroscience; University Hospitals of Geneva; Geneva Switzerland
| | - Andrea Dimiziani
- Department of Mental Health and Psychiatry, Laboratory for Translational Imaging in Psychiatric Neuroscience; University Hospitals of Geneva; Geneva Switzerland
- Department of Psychiatry; University of Geneva; Geneva Switzerland
| | - Stergios Tsartsalis
- Department of Mental Health and Psychiatry, Laboratory for Translational Imaging in Psychiatric Neuroscience; University Hospitals of Geneva; Geneva Switzerland
- Department of Psychiatry; University of Geneva; Geneva Switzerland
| | - Philippe Millet
- Department of Mental Health and Psychiatry, Laboratory for Translational Imaging in Psychiatric Neuroscience; University Hospitals of Geneva; Geneva Switzerland
- Department of Psychiatry; University of Geneva; Geneva Switzerland
| | - Nathalie Ginovart
- Department of Mental Health and Psychiatry, Laboratory for Translational Imaging in Psychiatric Neuroscience; University Hospitals of Geneva; Geneva Switzerland
- Department of Psychiatry; University of Geneva; Geneva Switzerland
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Differential effects of antipsychotic and propsychotic drugs on prepulse inhibition and locomotor activity in Roman high- (RHA) and low-avoidance (RLA) rats. Psychopharmacology (Berl) 2017; 234:957-975. [PMID: 28154892 PMCID: PMC5492384 DOI: 10.1007/s00213-017-4534-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Accepted: 01/09/2017] [Indexed: 10/20/2022]
Abstract
RATIONALE Animal models with predictive and construct validity are necessary for developing novel and efficient therapeutics for psychiatric disorders. OBJECTIVES We have carried out a pharmacological characterization of the Roman high- (RHA-I) and low-avoidance (RLA-I) rat strains with different acutely administered propsychotic (DOI, MK-801) and antipsychotic drugs (haloperidol, clozapine), as well as apomorphine, on prepulse inhibition (PPI) of startle and locomotor activity (activity cages). RESULTS RHA-I rats display a consistent deficit of PPI compared with RLA-I rats. The typical antipsychotic haloperidol (dopamine D2 receptor antagonist) reversed the PPI deficit characteristic of RHA-I rats (in particular at 65 and 70 dB prepulse intensities) and reduced locomotion in both strains. The atypical antipsychotic clozapine (serotonin/dopamine receptor antagonist) did not affect PPI in either strain, but decreased locomotion in a dose-dependent manner in both rat strains. The mixed dopamine D1/D2 agonist, apomorphine, at the dose of 0.05 mg/kg, decreased PPI in RHA-I, but not RLA-I rats. The hallucinogen drug DOI (5-HT2A agonist; 0.1-1.0 mg/kg) disrupted PPI in RLA-I rats in a dose-dependent manner at the 70 dB prepulse intensity, while in RHA-I rats, only the 0.5 mg/kg dose impaired PPI at the 80 dB prepulse intensity. DOI slightly decreased locomotion in both strains. Finally, clozapine attenuated the PPI impairment induced by the NMDA receptor antagonist MK-801 only in RLA-I rats. CONCLUSIONS These results add experimental evidence to the view that RHA-I rats represent a model with predictive and construct validity of some dopamine and 5-HT2A receptor-related features of schizophrenia.
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Esnal A, Sánchez-González A, Río-Álamos C, Oliveras I, Cañete T, Blázquez G, Tobeña A, Fernández-Teruel A. Prepulse inhibition and latent inhibition deficits in Roman high-avoidance vs. Roman low-avoidance rats: Modeling schizophrenia-related features. Physiol Behav 2016; 163:267-273. [DOI: 10.1016/j.physbeh.2016.05.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 05/11/2016] [Accepted: 05/12/2016] [Indexed: 02/07/2023]
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Oliveras I, Sánchez-González A, Piludu MA, Gerboles C, Río-Álamos C, Tobeña A, Fernández-Teruel A. Divergent effects of isolation rearing on prepulse inhibition, activity, anxiety and hippocampal-dependent memory in Roman high- and low-avoidance rats: A putative model of schizophrenia-relevant features. Behav Brain Res 2016; 314:6-15. [PMID: 27478139 DOI: 10.1016/j.bbr.2016.07.047] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 07/25/2016] [Accepted: 07/28/2016] [Indexed: 01/14/2023]
Abstract
Social isolation of rats induces a constellation of behavioral alterations known as "isolation syndrome" that are consistent with some of the positive and cognitive symptoms observed in schizophrenic patients. In the present study we have assessed whether isolation rearing of inbred Roman high-avoidance (RHA-I) and Roman low-avoidance (RLA-I) strains can lead to the appearance of some of the key features of the "isolation syndrome", such as prepulse inhibition (PPI) deficits, increased anxious behavior, hyperactivity and memory/learning impairments. Compared to RLA-I rats, the results show that isolation rearing (IR) in RHA-I rats has a more profound impact, as they exhibit isolation-induced PPI deficits, increased anxiety, hyperactivity and long-term reference memory deficits, while isolated RLA-I rats only exhibit deficits in a spatial working memory task. These results give further support to the validity of RHA-I rats as a genetically-based model of schizophrenia relevant-symptoms.
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Affiliation(s)
- Ignasi Oliveras
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of Barcelona 08193-Bellaterra, Barcelona, Spain.
| | - Ana Sánchez-González
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of Barcelona 08193-Bellaterra, Barcelona, Spain
| | - Maria Antonietta Piludu
- Department of Life and Environmental Sciences, Section of Pharmaceutical, Pharmacological and Nutraceutical Sciences, University of Cagliari, 09124 Cagliari, Italy
| | - Cristina Gerboles
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of Barcelona 08193-Bellaterra, Barcelona, Spain
| | - Cristóbal Río-Álamos
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of Barcelona 08193-Bellaterra, Barcelona, Spain
| | - Adolf Tobeña
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of Barcelona 08193-Bellaterra, Barcelona, Spain
| | - Alberto Fernández-Teruel
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of Barcelona 08193-Bellaterra, Barcelona, Spain.
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Cuenya L, Sabariego M, Donaire R, Callejas-Aguilera JE, Torres C, Fernández-Teruel A. Exploration of a novel object in late adolescence predicts novelty-seeking behavior in adulthood: Associations among behavioral responses in four novelty-seeking tests. Behav Processes 2016; 125:34-42. [PMID: 26852869 DOI: 10.1016/j.beproc.2016.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 02/01/2016] [Accepted: 02/02/2016] [Indexed: 10/22/2022]
Abstract
UNLABELLED The sensation/novelty seeking behavioral trait refers to the exploration/preference for a novel environment. Novelty seeking increases during late adolescence and it has been associated with several neurobehavioral disorders. In this experiment, we asked whether inbred Roman high- and low-avoidance (RHA-I, RLA-I) rats (1) differ in novelty seeking in late adolescence and (2) whether late adolescent novelty seeking predicts this trait in adulthood. Thirty six male RHA-I and 36 RLA-I rats were exposed to a novel object exploration (NOE) test during late adolescence (pnd: 52-59; DEPENDENT VARIABLES contact latency, contact time, contact frequency). Head-dipping (hole-board, HB), time and visits to a novel-arm (Y-maze), and latency-in and emergence latency (emergence test) were registered in adulthood (pnd: 83-105). The results showed strain differences in all these tests (RHA-I>RLA-I). Factor analysis (RHA-I+RLA-I) revealed two clusters. The first one grouped HB and emergence test measures. The second one grouped NOE and Y-maze variables. Time exploring a novel object (NOE) was a significant predictor of novel arm time (RHA-I+RLA, RHA-I); contact latency was a significant predictor of novel arm frequency (RLA-I). Present results show consistent behavioral associations across four novelty-seeking tests and suggest that late adolescent novelty seeking predicts this genetically-influenced temperamental trait in adult Roman rats.
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Affiliation(s)
- Lucas Cuenya
- Laboratorio de Psicología Experimental y Aplicada, Instituto de Investigaciones Médicas Alfredo Lanari, CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Marta Sabariego
- Neurobiology Section and Center for Neural Circuits and Behavior, Division of Biological Sciences, University of California, San Diego, CA, USA
| | - Rocío Donaire
- Departamento de Psicología, Universidad de Jaén, Spain
| | | | - Carmen Torres
- Departamento de Psicología, Universidad de Jaén, Spain.
| | - Alberto Fernández-Teruel
- Departamento de Psiquiatría y Medicina Legal, Instituto de Neurociencias, Facultad de Medicina, Universidad Autónoma de Barcelona, Barcelona, Spain.
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Sánchez-González A, Esnal A, Río-Álamos C, Oliveras I, Cañete T, Blázquez G, Tobeña A, Fernández-Teruel A. Association between prepulse inhibition of the startle response and latent inhibition of two-way avoidance acquisition: A study with heterogeneous NIH-HS rats. Physiol Behav 2015; 155:195-201. [PMID: 26700617 DOI: 10.1016/j.physbeh.2015.12.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 12/10/2015] [Accepted: 12/12/2015] [Indexed: 12/20/2022]
Abstract
This study presents the first evaluation of the associations between responses in two paradigms related to schizophrenia in the genetically heterogeneous NIH-HS rat stock. NIH-HS rats are a stock of genetically heterogeneous animals that have been derived from eight different inbred strains. A rotational breeding schedule has been followed for more than eighty generations, leading to a high level of genetic recombination that makes the NIH-HS rats a unique tool for studying the genetic basis of (biological, behavioral, disease-related) complex traits. Previous work has dealt with the characterization of coping styles, cognitive and anxiety/fear-related profiles of NIH-HS rats. In the present study we have completed their characterization in two behavioral models, prepulse inhibition (PPI) and latent inhibition (LI) of the two-way active avoidance response, that appear to be related to schizophrenia or to schizophrenia-relevant symptoms. We have found that these rats display PPI for each of the four prepulse intensities tested, allowing their stratification in high, medium and low PPI subgroups. When testing these three subgroups for LI of two-way active avoidance acquisition it has been observed that the LowPPI and MediumPPI subgroups present impaired LI, which, along with the fact that the HighPPI group presents significant LI, allows us to hypothesize that responses in these two paradigms are somehow related and that selection of NIH-HS rats for Low vs HighPPI could make a promising animal model for the study of clusters of schizophrenia-relevant symptoms and their underlying neurobiological mechanisms.
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Affiliation(s)
- Ana Sánchez-González
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, 08193-Bellaterra, Barcelona, Spain.
| | - Aitor Esnal
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, 08193-Bellaterra, Barcelona, Spain
| | - Cristóbal Río-Álamos
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, 08193-Bellaterra, Barcelona, Spain
| | - Ignasi Oliveras
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, 08193-Bellaterra, Barcelona, Spain
| | - Toni Cañete
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, 08193-Bellaterra, Barcelona, Spain
| | - Gloria Blázquez
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, 08193-Bellaterra, Barcelona, Spain
| | - Adolf Tobeña
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, 08193-Bellaterra, Barcelona, Spain
| | - Alberto Fernández-Teruel
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, Universitat Autònoma de Barcelona, 08193-Bellaterra, Barcelona, Spain.
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Oliveras I, Río-Álamos C, Cañete T, Blázquez G, Martínez-Membrives E, Giorgi O, Corda MG, Tobeña A, Fernández-Teruel A. Prepulse inhibition predicts spatial working memory performance in the inbred Roman high- and low-avoidance rats and in genetically heterogeneous NIH-HS rats: relevance for studying pre-attentive and cognitive anomalies in schizophrenia. Front Behav Neurosci 2015; 9:213. [PMID: 26347624 PMCID: PMC4539526 DOI: 10.3389/fnbeh.2015.00213] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 07/30/2015] [Indexed: 01/10/2023] Open
Abstract
Animal models of schizophrenia-relevant symptoms are increasingly important for progress in our understanding of the neurobiological basis of the disorder and for discovering novel and more specific treatments. Prepulse inhibition (PPI) and working memory, which are impaired in schizophrenic patients, are among the symptoms/processes modeled in those animal analogs. We have evaluated whether a genetically-selected rat model, the Roman high-avoidance inbred strain (RHA-I), displays PPI deficits as compared with its Roman low-avoidance (RLA-I) counterpart and the genetically heterogeneous NIH-HS rat stock. We have investigated whether PPI deficits predict spatial working memory impairments (in the Morris water maze; MWM) in these three rat types (Experiment 1), as well as in a separate sample of NIH-HS rats stratified according to their extreme (High, Medium, Low) PPI scores (Experiment 2). The results from Experiment 1 show that RHA-I rats display PPI and spatial working memory deficits compared to both RLA-I and NIH-HS rats. Likewise, in Experiment 2, "Low-PPI" NIH-HS rats present significantly impaired working memory with respect to "Medium-PPI" and "High-PPI" NIH-HS subgroups. Further support to these results comes from correlational, factorial, and multiple regression analyses, which reveal that PPI is positively associated with spatial working memory performance. Conversely, cued learning in the MWM was not associated with PPI. Thus, using genetically-selected and genetically heterogeneous rats, the present study shows, for the first time, that PPI is a positive predictor of performance in a spatial working memory task. These results may have translational value for schizophrenia symptom research in humans, as they suggest that either by psychogenetic selection or by focusing on extreme PPI scores from a genetically heterogeneous rat stock, it is possible to detect a useful (perhaps "at risk") phenotype to study cognitive anomalies linked to schizophrenia.
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Affiliation(s)
- Ignasi Oliveras
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of BarcelonaBarcelona, Spain
- *Correspondence: Ignasi Oliveras and Alberto Fernández-Teruel, Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Autonomous University of Barcelona, 08913 Bellaterra, Barcelona, Spain ;
| | - Cristóbal Río-Álamos
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of BarcelonaBarcelona, Spain
| | - Toni Cañete
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of BarcelonaBarcelona, Spain
| | - Gloria Blázquez
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of BarcelonaBarcelona, Spain
| | - Esther Martínez-Membrives
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of BarcelonaBarcelona, Spain
| | - Osvaldo Giorgi
- Section of Pharmaceutical, Pharmacological and Nutraceutical Sciences, Department of Life and Environmental Sciences, University of CagliariCagliari, Italy
| | - Maria G. Corda
- Section of Pharmaceutical, Pharmacological and Nutraceutical Sciences, Department of Life and Environmental Sciences, University of CagliariCagliari, Italy
| | - Adolf Tobeña
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of BarcelonaBarcelona, Spain
| | - Alberto Fernández-Teruel
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Institute of Neurosciences, Autonomous University of BarcelonaBarcelona, Spain
- *Correspondence: Ignasi Oliveras and Alberto Fernández-Teruel, Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, School of Medicine, Autonomous University of Barcelona, 08913 Bellaterra, Barcelona, Spain ;
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Wang Z, Yan P, Hui T, Zhang J. Epigenetic upregulation of PSD-95 contributes to the rewarding behavior by morphine conditioning. Eur J Pharmacol 2014; 732:123-9. [PMID: 24704371 DOI: 10.1016/j.ejphar.2014.03.040] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 03/04/2014] [Accepted: 03/17/2014] [Indexed: 10/25/2022]
Abstract
Abuse of opiates, including morphine, induced remarkable synaptic adaptation in several brain regions including ventral tegmental area (VTA), which underlay the induction and maintenance of opioid dependence and addiction. Scaffolding protein postsynaptic density protein 95 (PSD-95) is critically involved in the glutamatergic synaptic maturation and plasticity in the central neurons. The present study revealed a significantly increased mRNA and protein expression of PSD-95 in the VTA of the rats conditioned with morphine. The further chromatin immunoprecipitation study found an increased histone H3 acetylation in the promoter region of Dlg4. An upregulation of expression of phosphorylated cAMP response element-binding protein (pCREB) and the occupancy of pCREB in the Dlg4 promoter region were shown in the VTA of the morphine-conditioned rats. Inhibition of pCREB activity significantly decreased the histone H3 acetylation in Dlg4 promoter region, PSD-95 upregulation, enhancement of glutamatergic strength and the preference to morphine-paired chamber in the rats with morphine conditioning. These results suggested that CREB-mediated epigenetic upregulation of PSD-95 critically contributed to the enhanced glutamatergic transmission and rewarding behavior induced by morphine conditioning.
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Affiliation(s)
- Ziwen Wang
- Department of Preventive Medicine, Third Military Medical University, Chongqing 400038, China; Department of Neurobiology, Third Military Medical University, Chongqing 400038, China
| | - Pingao Yan
- Molecular Oncology and Epigenetics Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Tianli Hui
- Molecular Oncology and Epigenetics Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jiqiang Zhang
- Department of Neurobiology, Third Military Medical University, Chongqing 400038, China.
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Río CD, Oliveras I, Cañete T, Blázquez G, Tobeña A, Fernández-Teruel A. Genetic Rat Models of Schizophrenia-Relevant Symptoms. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/wjns.2014.43030] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Díaz-Morán S, Palència M, Mont-Cardona C, Cañete T, Blázquez G, Martínez-Membrives E, López-Aumatell R, Sabariego M, Donaire R, Morón I, Torres C, Martínez-Conejero JA, Tobeña A, Esteban FJ, Fernández-Teruel A. Gene expression in amygdala as a function of differential trait anxiety levels in genetically heterogeneous NIH-HS rats. Behav Brain Res 2013; 252:422-31. [PMID: 23777796 DOI: 10.1016/j.bbr.2013.05.066] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 05/07/2013] [Accepted: 05/10/2013] [Indexed: 12/12/2022]
Abstract
To identify genes involved in anxiety/fear traits, we analyzed the gene expression profile in the amygdala of genetically heterogeneous NIH-HS rats. The NIH-HS rat stock has revealed to be a unique genetic resource for the fine mapping of Quantitative Trait Loci (QTLs) to very small genomic regions, due to the high amount of genetic recombinants accumulated along more than 50 breeding generations, and for the same reason it can be expected that those genetically heterogeneous rats should be especially useful for studying differential gene expression as a function of anxiety-(or other)-related traits. We selected high- and low-anxious NIH-HS rats differing in their number of avoidances in a single 50-trial session of the two-way active avoidance task. Rats were also tested in unconditioned anxiety tests (e.g., elevated zero-maze). Three weeks after behavioural testing, the amygdala was dissected and prepared for the microarray study. There appeared 6 significantly down-regulated and 28 up-regulated genes (fold-change >|2|, FDR<0.05) between the low- and high-anxious groups, with central nervous system-related functions. Regression analyses (stepwise) revealed that differential expression of some genes could be predictive of anxiety/fear responses. Among those genes for which the present results suggest a link with individual differences in trait anxiety, six relevant genes were examined with qRT-PCR, four of which (Ucn3, Tacr3, H2-M9 and Arr3) were validated. Remarkably, some of them are characterized by sharing known functions related with hormonal HPA-axis responses to (and/or modulation of) stress, anxiety or fear, and putative involvement in related neurobehavioural functions. The results confirm the usefulness of NIH-HS rats as a good animal model for research on the neurogenetic basis of anxiety and fear, while suggesting the involvement of some neuropeptide/neuroendocrine pathways on the development of differential anxiety profiles.
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Affiliation(s)
- Sira Díaz-Morán
- Medical Psychology Unit, Department of Psychiatry & Forensic Medicine, Institute of Neurosciences, School of Medicine, Universidad Autónoma de Barcelona, Barcelona, Spain.
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Monocular enucleation profoundly reduces secretogranin II expression in adult mouse visual cortex. Neurochem Int 2011; 59:1082-94. [DOI: 10.1016/j.neuint.2011.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 09/12/2011] [Indexed: 11/21/2022]
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21
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Differential gene expression between inbred Roman high- (RHA-I) and low- (RLA-I) avoidance rats. Neurosci Lett 2011; 504:265-70. [DOI: 10.1016/j.neulet.2011.09.044] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Revised: 09/10/2011] [Accepted: 09/19/2011] [Indexed: 11/18/2022]
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Moreno M, Cardona D, Gómez MJ, Sánchez-Santed F, Tobeña A, Fernández-Teruel A, Campa L, Suñol C, Escarabajal MD, Torres C, Flores P. Impulsivity characterization in the Roman high- and low-avoidance rat strains: behavioral and neurochemical differences. Neuropsychopharmacology 2010; 35:1198-208. [PMID: 20090672 PMCID: PMC3055403 DOI: 10.1038/npp.2009.224] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2009] [Revised: 11/24/2009] [Accepted: 11/27/2009] [Indexed: 11/08/2022]
Abstract
The selective breeding of Roman high- (RHA) and low-avoidance (RLA) rats for rapid vs extremely poor acquisition of active avoidance behavior in a shuttle-box has generated two phenotypes with different emotional and motivational profiles. The phenotypic traits of the Roman rat lines/strains (outbred or inbred, respectively) include differences in sensation/novelty seeking, anxiety/fearfulness, stress responsivity, and susceptibility to addictive substances. We designed this study to characterize differences between the inbred RHA-I and RLA-I strains in the impulsivity trait by evaluating different aspects of the multifaceted nature of impulsive behaviors using two different models of impulsivity, the delay-discounting task and five-choice serial reaction time (5-CSRT) task. Previously, rats were evaluated on a schedule-induced polydipsia (SIP) task that has been suggested as a model of obsessive-compulsive disorder. RHA-I rats showed an increased acquisition of the SIP task, higher choice impulsivity in the delay-discounting task, and poor inhibitory control as shown by increased premature responses in the 5-CSRT task. Therefore, RHA-I rats manifested an increased impulsivity phenotype compared with RLA-I rats. Moreover, these differences in impulsivity were associated with basal neurochemical differences in striatum and nucleus accumbens monoamines found between the two strains. These findings characterize the Roman rat strains as a valid model for studying the different aspects of impulsive behavior and for analyzing the mechanisms involved in individual predisposition to impulsivity and its related psychopathologies.
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Affiliation(s)
- Margarita Moreno
- Departamento de Neurociencia y Ciencias de la Salud, Universidad de Almería, Almería, Spain
| | - Diana Cardona
- Departamento de Neurociencia y Ciencias de la Salud, Universidad de Almería, Almería, Spain
| | | | | | - Adolf Tobeña
- Departamento de Psiquiatria y Medicina Legal, Instituto de Neurociencias, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - Alberto Fernández-Teruel
- Departamento de Psiquiatria y Medicina Legal, Instituto de Neurociencias, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - Leticia Campa
- Instituto de Investigaciones Biomedicas de Barcelona, CSIC-IDIBAPS, CIBERESP (CS), CIBERSAM (LC), Barcelona, Spain
| | - Cristina Suñol
- Instituto de Investigaciones Biomedicas de Barcelona, CSIC-IDIBAPS, CIBERESP (CS), CIBERSAM (LC), Barcelona, Spain
| | | | - Carmen Torres
- Departamento de Psicología, Universidad de Jaén, Jaén, Spain
| | - Pilar Flores
- Departamento de Neurociencia y Ciencias de la Salud, Universidad de Almería, Almería, Spain
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23
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One-way avoidance learning in female inbred Roman high- and low-avoidance rats: Effects of bilateral electrolytic central amygdala lesions. Neurosci Lett 2010; 474:32-6. [DOI: 10.1016/j.neulet.2010.03.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2009] [Revised: 02/16/2010] [Accepted: 03/01/2010] [Indexed: 11/17/2022]
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24
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Kuntz-Melcavage KL, Freeman WM, Vrana KE. CNS genes implicated in relapse. SUBSTANCE ABUSE-RESEARCH AND TREATMENT 2008; 2:1-12. [PMID: 25922574 PMCID: PMC4395042 DOI: 10.4137/sart.s1042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Drug abuse is a condition that impacts not only the individual drug user, but society as a whole. Although prevention of initial drug use is the most effective way to prevent addiction, avoiding relapse is a crucial component of drug addiction recovery. Recent studies suggest that there is a set of genes whose expression is robustly and stably altered following drug use and ensuing abstinence. Such stable changes in gene expression correlate with ultrastructural changes in brain as well as alterations in behavior. As persistent molecular changes, these genes may provide targets for the development of therapeutics. Developing a list of well-characterized candidate genes and examining the effect of manipulating these genes will contribute to the ultimate goal of developing effective treatments to prevent relapse to drug use.
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Affiliation(s)
- Kara L Kuntz-Melcavage
- Department of Pharmacology, Pennsylvania State University College of Medicine, R130, 500 University Drive, Hershey, PA 17033, U.S.A
| | - Willard M Freeman
- Department of Pharmacology, Pennsylvania State University College of Medicine, R130, 500 University Drive, Hershey, PA 17033, U.S.A
| | - Kent E Vrana
- Department of Pharmacology, Pennsylvania State University College of Medicine, R130, 500 University Drive, Hershey, PA 17033, U.S.A
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