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Zhang J, Lu Y, Jia M, Bai Y, Sun L, Dong Z, Tian W, Yin F, Wei S, Wang Y. Kappa opioid receptor in nucleus accumbens regulates depressive-like behaviors following prolonged morphine withdrawal in mice. iScience 2023; 26:107536. [PMID: 37636073 PMCID: PMC10448166 DOI: 10.1016/j.isci.2023.107536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/12/2023] [Accepted: 07/28/2023] [Indexed: 08/29/2023] Open
Abstract
Prolonged withdrawal from opioids leads to negative emotions. Kappa opioid receptor (KOR) plays an important role in opioid addiction and affective disorders. However, the underlying mechanism of KOR in withdrawal-related depression is still lacking. We found that escitalopram treatment had a limited effect in improving depression symptoms in heroin-dependent patients. In mice, we demonstrated prolonged (4 weeks) but not acute (24 h) withdrawal from morphine induced depressive-like behaviors. The number of c-Fos positive cells and the expression of KOR in the nucleus accumbens (NAc), were significantly increased in the prolonged morphine withdrawal mice. Conditional KOR knockdown in NAc significantly improved depressive-like behaviors. Repeated but not acute treatment with the KOR antagonist norBNI improved depressive-like behaviors and reversed PSD95, synaptophysin, p-ERK, p-CREB, and BDNF in NAc. This study demonstrated the important role of striatal KOR in morphine withdrawal-related depressive-like behaviors and offered therapeutic potential for the treatment of withdrawal-related depression.
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Affiliation(s)
- Jinyu Zhang
- Department of Psychiatry and Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Ye Lu
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Min Jia
- Department of Psychiatry and Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
- Shaanxi Belt and Road Joint Laboratory of Precision Medicine in Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Yuying Bai
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Lulu Sun
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Ziqing Dong
- Department of Psychiatry and Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
- Shaanxi Belt and Road Joint Laboratory of Precision Medicine in Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Wenrong Tian
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Fangyuan Yin
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Shuguang Wei
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Yunpeng Wang
- Department of Psychiatry and Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
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2
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Demin KA, Meshalkina DA, Kysil EV, Antonova KA, Volgin AD, Yakovlev OA, Alekseeva PA, Firuleva MM, Lakstygal AM, de Abreu MS, Barcellos LJG, Bao W, Friend AJ, Amstislavskaya TG, Rosemberg DB, Musienko PE, Song C, Kalueff AV. Zebrafish models relevant to studying central opioid and endocannabinoid systems. Prog Neuropsychopharmacol Biol Psychiatry 2018; 86:301-312. [PMID: 29604314 DOI: 10.1016/j.pnpbp.2018.03.024] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 03/26/2018] [Accepted: 03/26/2018] [Indexed: 12/19/2022]
Abstract
The endocannabinoid and opioid systems are two interplaying neurotransmitter systems that modulate drug abuse, anxiety, pain, cognition, neurogenesis and immune activity. Although they are involved in such critical functions, our understanding of endocannabinoid and opioid physiology remains limited, necessitating further studies, novel models and new model organisms in this field. Zebrafish (Danio rerio) is rapidly emerging as one of the most effective translational models in neuroscience and biological psychiatry. Due to their high physiological and genetic homology to humans, zebrafish may be effectively used to study the endocannabinoid and opioid systems. Here, we discuss current models used to target the endocannabinoid and opioid systems in zebrafish, and their potential use in future translational research and high-throughput drug screening. Emphasizing the high degree of conservation of the endocannabinoid and opioid systems in zebrafish and mammals, we suggest zebrafish as an excellent model organism to study these systems and to search for the new drugs and therapies targeting their evolutionarily conserved mechanisms.
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Affiliation(s)
- Konstantin A Demin
- Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia; Institute of Experimental Medicine, Almazov National Medical Research Centre, St. Petersburg, Russia; Laboratory of Preclinical Bioscreening, Russian Research Center for Radiology and Surgical Technologies, Ministry of Health, St. Petersburg, Russia
| | - Darya A Meshalkina
- Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia; Institute of Experimental Medicine, Almazov National Medical Research Centre, St. Petersburg, Russia; Laboratory of Preclinical Bioscreening, Russian Research Center for Radiology and Surgical Technologies, Ministry of Health, St. Petersburg, Russia
| | - Elana V Kysil
- Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Kristina A Antonova
- Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Andrey D Volgin
- Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia; Medical Military Academy, St. Petersburg, Russia
| | - Oleg A Yakovlev
- Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia; Medical Military Academy, St. Petersburg, Russia
| | - Polina A Alekseeva
- Institute of Experimental Medicine, Almazov National Medical Research Centre, St. Petersburg, Russia
| | - Maria M Firuleva
- Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Anton M Lakstygal
- Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Murilo S de Abreu
- Bioscience Institute, University of Passo Fundo (UPF), Passo Fundo, RS, Brazil; Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Leonardo J G Barcellos
- Graduate Program in Pharmacology, Federal University of Santa Maria, Santa Maria, Brazil; Graduate Programs in Environmental Sciences, and Bio-Experimentation, University of Passo Fundo (UPF), Passo Fundo, Brazil; The International Zebrafish Neuroscience Research Consortium (ZNRC), Slidell, LA, USA
| | - Wandong Bao
- School of Pharmacy, Southwest University, Chongqing, China
| | - Ashton J Friend
- The International Zebrafish Neuroscience Research Consortium (ZNRC), Slidell, LA, USA; Tulane University School of Science and Engineering, New Orleans, LA, USA
| | - Tamara G Amstislavskaya
- The International Zebrafish Neuroscience Research Consortium (ZNRC), Slidell, LA, USA; Laboratory of Translational Biopsychiatry, Research Institute of Physiology and Basic Medicine, Novosibirsk, Russia; Neuroscience Department, Novosibirsk State University, Novosibirsk, Russia
| | - Denis B Rosemberg
- The International Zebrafish Neuroscience Research Consortium (ZNRC), Slidell, LA, USA; Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, Brazil
| | - Pavel E Musienko
- Laboratory of Neuroprosthetics, Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia; Laboratory of Motor Physiology, Pavlov Institute of Physiology RAS, St. Petersburg, Russia; Laboratory of Neurophysiology and Experimental Neurorehabilitation, St. Petersburg State Research Institute of Phthysiopulmonology, Ministry of Health, St. Petersburg, Russia; Russian Research Center of Radiology and Surgical Technologies, Ministry of Health, St. Petersburg, Russia
| | - Cai Song
- Research Institute for Marine Drugs and Nutrition, Guangdong Ocean University, Zhanjiang, China; Marine Medicine Research and Development Center, Shenzhen Institute of Guangdong Ocean University, Shenzhen, China
| | - Allan V Kalueff
- School of Pharmacy, Southwest University, Chongqing, China; Laboratory of Translational Biopsychiatry, Research Institute of Physiology and Basic Medicine, Novosibirsk, Russia; Neuroscience Department, Novosibirsk State University, Novosibirsk, Russia; ZENEREI Research Center, Slidell, LA, USA; Russian Research Center of Radiology and Surgical Technologies, Ministry of Health, St. Petersburg, Russia; Ural Federal University, Ekaterinburg, Russia; Aquatic Laboratory, Institute of Experimental Medicine, Almazov National Medical Research Centre, St. Petersburg, Russia.
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3
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McHugh KL, Kelly JP. Modulation of the central opioid system as an antidepressant target in rodent models. PROGRESS IN BRAIN RESEARCH 2018; 239:49-87. [DOI: 10.1016/bs.pbr.2018.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Taylor GT, Manzella F. Kappa Opioids, Salvinorin A and Major Depressive Disorder. Curr Neuropharmacol 2016; 14:165-76. [PMID: 26903446 PMCID: PMC4825947 DOI: 10.2174/1570159x13666150727220944] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 06/11/2015] [Accepted: 07/24/2015] [Indexed: 12/13/2022] Open
Abstract
Opioids are traditionally associated with pain, analgesia and drug abuse. It is now clear,
however, that the opioids are central players in mood. The implications for mood disorders, particularly
clinical depression, suggest a paradigm shift from the monoamine neurotransmitters to the opioids either
alone or in interaction with monoamine neurons. We have a special interest in dynorphin, the last of
the major endogenous opioids to be isolated and identified. Dynorphin is derived from the Greek word
for power, dynamis, which hints at the expectation that the neuropeptide held for its discoverers. Yet,
dynorphin and its opioid receptor subtype, kappa, has always taken a backseat to the endogenous b-endorphin and the
exogenous morphine that both bind the mu opioid receptor subtype. That may be changing as the dynorphin/ kappa system
has been shown to have different, often opposite, neurophysiological and behavioral influences. This includes major
depressive disorder (MDD). Here, we have undertaken a review of dynorphin/ kappa neurobiology as related to behaviors,
especially MDD. Highlights include the unique features of dynorphin and kappa receptors and the special relation of a
plant-based agonist of the kappa receptor salvinorin A. In addition to acting as a kappa opioid agonist, we conclude that
salvinorin A has a complex pharmacologic profile, with potential additional mechanisms of action. Its unique neurophysiological
effects make Salvinorina A an ideal candidate for MDD treatment research.
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Affiliation(s)
| | - Francesca Manzella
- Behavioral Neuroscience/ Psychology Univ. Missouri - St. Louis, One University Blvd, St. Louis, MO 63121 USA.
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5
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Khaloo P, Sadeghi B, Ostadhadi S, Norouzi-Javidan A, Haj-Mirzaian A, Zolfagharie S, Dehpour AR. Lithium attenuated the behavioral despair induced by acute neurogenic stress through blockade of opioid receptors in mice. Biomed Pharmacother 2016; 83:1006-1015. [DOI: 10.1016/j.biopha.2016.08.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 08/04/2016] [Accepted: 08/07/2016] [Indexed: 11/25/2022] Open
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Zan GY, Wang Q, Wang YJ, Liu Y, Hang A, Shu XH, Liu JG. Antagonism of κ opioid receptor in the nucleus accumbens prevents the depressive-like behaviors following prolonged morphine abstinence. Behav Brain Res 2015; 291:334-341. [DOI: 10.1016/j.bbr.2015.05.053] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 05/25/2015] [Accepted: 05/30/2015] [Indexed: 01/10/2023]
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Synaptic modifications in the medial prefrontal cortex in susceptibility and resilience to stress. J Neurosci 2014; 34:7485-92. [PMID: 24872553 DOI: 10.1523/jneurosci.5294-13.2014] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
When facing stress, most individuals are resilient whereas others are prone to developing mood disorders. The brain mechanisms underlying such divergent behavioral responses remain unclear. Here we used the learned helplessness procedure in mice to examine the role of the medial prefrontal cortex (mPFC), a brain region highly implicated in both clinical and animal models of depression, in adaptive and maladaptive behavioral responses to stress. We found that uncontrollable and inescapable stress induced behavioral state-dependent changes in the excitatory synapses onto a subset of mPFC neurons: those that were activated during behavioral responses as indicated by their expression of the activity reporter c-Fos. Whereas synaptic potentiation was linked to learned helplessness, a depression-like behavior, synaptic weakening, was associated with resilience to stress. Notably, enhancing the activity of mPFC neurons using a chemical-genetic method was sufficient to convert the resilient behavior into helplessness. Our results provide direct evidence that mPFC dysfunction is linked to maladaptive behavioral responses to stress, and suggest that enhanced excitatory synaptic drive onto mPFC neurons may underlie the previously reported hyperactivity of this brain region in depression.
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Haj-Mirzaian A, Ostadhadi S, Kordjazy N, Dehpour AR, Ejtemaei Mehr S. Opioid/NMDA receptors blockade reverses the depressant-like behavior of foot shock stress in the mouse forced swimming test. Eur J Pharmacol 2014; 735:26-31. [DOI: 10.1016/j.ejphar.2014.03.053] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 03/15/2014] [Accepted: 03/26/2014] [Indexed: 10/25/2022]
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9
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Haj-Mirzaian A, Hamzeh N, Javadi-Paydar M, Abdollahzadeh Estakhri MR, Dehpour AR. Resistance to depression through interference of opioid and nitrergic systems in bile-duct ligated mice. Eur J Pharmacol 2013; 708:38-43. [PMID: 23528353 DOI: 10.1016/j.ejphar.2013.03.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2012] [Revised: 02/25/2013] [Accepted: 03/08/2013] [Indexed: 11/24/2022]
Abstract
This study was done to investigate the effects of opioid and nitrergic systems on depression in an experimental model of cholestasis in mice, since elevated levels of these substances are seen in cholestatic subjects. Bile duct ligated (BDL) and sham-operated mice were forced to swim individually and the immobility time in the last 4 min of the 6 min test was evaluated to determine the effects of cholestasis on depression. To assess the possible involvement of endogenous opioids and nitric oxide (NO), effective and sub-effective doses of naltrexone an antagonist of opioid receptors, and N-nitro-l-arginine methyl ester (L-NAME) a non-specific NO synthase inhibitor, were administrated acutely and chronically to BDL and Sham-operated mice and then their immobility time was measured in forced swimming test (FST). The immobility time significantly decreased after bile-duct ligation. Naltrexone and L-NAME significantly reversed antidepressant like effect of cholestasis. Co-administration of sub-effective doses of naltrexone and L-NAME also reversed antidepressant effect in FST in chronic administration. But acute drug administration did not reverse the anti-depressant effect of cholestasis. We have shown that elevated levels of endogenous opioids and NO in cholestatic mice induce an anti depressant like effect, causing a reduction in the mice immobility time in FST. And the study also showed the predominant effect of opioid system and NO modulation of that in anti-depressant like effect of cholestasis.
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Affiliation(s)
- Arya Haj-Mirzaian
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Mysels D, Sullivan MA. The kappa-opiate receptor impacts the pathophysiology and behavior of substance use. Am J Addict 2009; 18:272-6. [PMID: 19444730 PMCID: PMC5846103 DOI: 10.1080/10550490902925862] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
There is increasing evidence that the kappa-opiate receptor, in addition to the mu-opiate receptor, plays an important role in substance use pathophysiology and behavior. As dopamine activity is upregulated through chronic substance use, kappa receptor activity, mediated through the peptide dynorphin, is upregulated in parallel. Dynorphin causes dysphoria and decreased locomotion, and the upregulation of its activity on the kappa receptor likely dampens the excitation caused by increased dopaminergic activity. This feedback mechanism may have significant clinical implications for treating drug dependent patients in various stages of their pathology.
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Affiliation(s)
- David Mysels
- Division on Substance Use Research, Columbia Presbyterian Medical Center/New York State Psychiatric Institution, New York, New York 10032, USA.
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Braida D, Capurro V, Zani A, Rubino T, Viganò D, Parolaro D, Sala M. Potential anxiolytic- and antidepressant-like effects of salvinorin A, the main active ingredient of Salvia divinorum, in rodents. Br J Pharmacol 2009; 157:844-53. [PMID: 19422370 DOI: 10.1111/j.1476-5381.2009.00230.x] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Drugs targeting brain kappa-opioid receptors produce profound alterations in mood. In the present study we investigated the possible anxiolytic- and antidepressant-like effects of the kappa-opioid receptor agonist salvinorin A, the main active ingredient of Salvia divinorum, in rats and mice. EXPERIMENTAL APPROACH Experiments were performed on male Sprague-Dawley rats or male Albino Swiss mice. The anxiolytic-like effects were tested by using the elevated plus maze, in rats. The antidepressant-like effect was estimated through the forced swim (rats) and the tail suspension (mice) test. kappa-Opioid receptor involvement was investigated pretreating animals with the kappa-opioid receptor antagonist, nor-binaltorphimine (1 or 10 mgxkg(-1)), while direct or indirect activity at CB(1) cannabinoid receptors was evaluated with the CB(1) cannabinoid receptor antagonist, N-(piperidin-1-yl) -5-(4-iodophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxamide (AM251, 0.5 or 3 mgxkg(-1)), binding to striatal membranes of naïve rats and assay of fatty acid amide hydrolase in prefrontal cortex, hippocampus and amygdala. KEY RESULTS Salvinorin A, given s.c. (0.001-1000 microgxkg(-1)), exhibited both anxiolytic- and antidepressant-like effects that were prevented by nor-binaltorphimine or AM251 (0.5 or 3 mgxkg(-1)). Salvinorin A reduced fatty acid amide hydrolase activity in amygdala but had very weak affinity for cannabinoid CB(1) receptors. CONCLUSIONS AND IMPLICATIONS The anxiolytic- and antidepressant-like effects of Salvinorin A are mediated by both kappa-opioid and endocannabinoid systems and may partly explain the subjective symptoms reported by recreational users of S. divinorum.
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Affiliation(s)
- Daniela Braida
- Department of Pharmacology, Chemotherapy and Medical Toxicology, University of Milan, Milan, Italy
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Mamiya T, Kise M, Morikawa K, Aoto H, Ukai M, Noda Y. Effects of pre-germinated brown rice on depression-like behavior in mice. Pharmacol Biochem Behav 2006; 86:62-7. [PMID: 17258802 DOI: 10.1016/j.pbb.2006.12.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2006] [Revised: 12/01/2006] [Accepted: 12/09/2006] [Indexed: 12/24/2022]
Abstract
We investigated the antidepressant-like effects of pre-germinated brown rice (PGBR) and polished rice (PR) pellets, respectively, in comparison with control (AIN-93G) pellets in the forced swimming test and the learned helplessness paradigm in mice. Mice were fed respective pellets for 30 days. The immobility time on the 2nd day of the forced swimming test was shorter in mice fed with PR or PGBR pellets than in mice fed with control pellets. In the learned helplessness paradigm, the number of escape failures in mice fed with PGBR pellets was significantly smaller than that in mice fed with control pellets. Compared to the control group, an increase in serotonin (5-HT) levels, but not in 5-hydroxyindoleacetic acid (5-HIAA) levels, and a decrease in the 5-HIAA/5-HT ratio were observed in the frontal cortex of the PGBR group. There were no differences among the three groups in terms of 5-HT and 5-HIAA levels and their ratios in the hippocampus and striatum. The levels of noradrenaline and 3-methoxy-4-hydroxyphenylglycol were not affected by the food pellets in all the brain regions tested. Additionally, we could not detect any differences in the expression of the 5-HT1A receptor and the 5-HT transporter in the frontal cortex of the three groups. These results suggest that the increase of 5-HT levels in the mouse frontal cortex contributes to the antidepressant-like effects of PGBR pellets.
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Affiliation(s)
- Takayoshi Mamiya
- Department of Chemical Pharmacology, Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan.
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Gerra G, Leonardi C, D'Amore A, Strepparola G, Fagetti R, Assi C, Zaimovic A, Lucchini A. Buprenorphine treatment outcome in dually diagnosed heroin dependent patients: A retrospective study. Prog Neuropsychopharmacol Biol Psychiatry 2006; 30:265-72. [PMID: 16309810 DOI: 10.1016/j.pnpbp.2005.10.007] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2005] [Indexed: 10/25/2022]
Abstract
The present study compared retrospectively in a clinical non-experimental setting the efficacy of buprenorphine (BUP) in different subgroups of dually diagnosed and non-dually diagnosed opioid-dependent patients: all the subjects included in the study showed severe long-lasting heroin addiction and 68.4% were affected by psychiatric comorbidity. Participants (206) (mean age 32.2+/-8.9, 177 males-29 females) were applicants to a long-term buprenorphine treatment program (mean doses 7.9+/-0.42 mg). Aim of the study was to evaluate dual diagnosis variables possibly influencing retention rate and abstinence from illicit drugs. The patients were divided into 5 subgroups on the basis of dual diagnosis: group 1: major depression (MD) 29.61%; group 2: generalized anxiety (GAD) (11.2%); group 3: personality disorders (PD), antisocial-borderline (21.84%); group 4: schizophrenia (SC)(6.3%); group 5: substance use disorder without overt psychiatric comorbidity (SUD) (31.1%). Group 1 patients affected by MD showed the highest retention rate at 12 months (72.1%) in comparison with the other groups of patients: group 2 GAD (39.1%), group 3 PD (17.8%), group 4 SC (7.7%) and group 5 SUD, without comorbidity (45.3%) (p=0.006, p<0.001, p<0.001, p=0.002). Similarly, at 12 months, the patients affected by MD showed less risk of illicit opioid use (16.4%) than those affected by GAD (34.8%), PD (42.2%), SC (53.8%) and SUD without comorbidity (34.4%) (p=0.06, p=0.003, p=0.008, p=0.017). When evaluated on the whole sample, retention rate was not influenced by dose. In contrast, the higher BUP doses were associated with less risk of illicit opioid use, than lower doses (p<0.001). Multivariate analysis and factor analysis showed a greater association of outcome measures (retention rate and negative urines rate) with comorbid diagnosis (depression) (respectively 0.64) than with buprenorphine doses (respectively 0.54). Our data need to be interpreted with caution because of the retrospective methodology applied to a clinical non-experimental setting. BUP seems to be more effective in opioid-dependent patients affected by depression, probably due to the kappa opioid-receptors antagonist action, counteracting dysphoria, negativism and anxiety. High doses of BUP appear to predict a better outcome, in terms of negative urines, but not in terms of retention.
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15
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McCurdy CR, Sufka KJ, Smith GH, Warnick JE, Nieto MJ. Antinociceptive profile of salvinorin A, a structurally unique kappa opioid receptor agonist. Pharmacol Biochem Behav 2006; 83:109-13. [PMID: 16434091 DOI: 10.1016/j.pbb.2005.12.011] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2005] [Revised: 11/28/2005] [Accepted: 12/09/2005] [Indexed: 11/19/2022]
Abstract
Salvinorin A, is a structurally unique, non-nitrogenous, kappa opioid receptor (KOP) agonist. Given the role of KOPs in analgesic processes, we set out to determine whether salvinorin A has antinociceptive activity in thermal and chemo-nociceptive assays. The tail-flick assay was employed to investigate 1) salvinorin A's (0.5, 1.0, 2.0, and 4.0 mg/kg) dose-response and time-course (10, 20, and 30 min) effects in a thermal nociceptive assay, and 2) the ability for the KOP antagonist norBNI (10.0 mg/kg) to prevent salvinorin A antinociception. The hotplate assay was utilized as a second thermal nociceptive measure to test salvinorin A's dose-response effects. The acetic acid abdominal constriction assay was used to study salvinorin A's dose-response and time-course (over 30 min) effects in a chemo-nociceptive assay. Together, these studies revealed that salvinorin A produces a dose-dependent antinociception that peaked at 10 min post-injection but rapidly returned to baseline. Additionally, pretreatment with the KOP antagonist norbinaltorphimine (norBNI) reversed salvinorin A-induced antinociception. These findings demonstrate that salvinorin A produces a KOP mediated antinociceptive effect with a short duration of action.
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Affiliation(s)
- Christopher R McCurdy
- Department of Medicinal Chemistry, School of Pharmacy, University of Mississippi, University, MS 38677, USA.
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Chourbaji S, Zacher C, Sanchis-Segura C, Dormann C, Vollmayr B, Gass P. Learned helplessness: validity and reliability of depressive-like states in mice. ACTA ACUST UNITED AC 2005; 16:70-8. [PMID: 16338640 DOI: 10.1016/j.brainresprot.2005.09.002] [Citation(s) in RCA: 151] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2005] [Revised: 09/12/2005] [Accepted: 09/22/2005] [Indexed: 11/26/2022]
Abstract
The learned helplessness paradigm is a depression model in which animals are exposed to unpredictable and uncontrollable stress, e.g. electroshocks, and subsequently develop coping deficits for aversive but escapable situations (J.B. Overmier, M.E. Seligman, Effects of inescapable shock upon subsequent escape and avoidance responding, J. Comp. Physiol. Psychol. 63 (1967) 28-33 ). It represents a model with good similarity to the symptoms of depression, construct, and predictive validity in rats. Despite an increased need to investigate emotional, in particular depression-like behaviors in transgenic mice, so far only a few studies have been published using the learned helplessness paradigm. One reason may be the fact that-in contrast to rats (B. Vollmayr, F.A. Henn, Learned helplessness in the rat: improvements in validity and reliability, Brain Res. Brain Res. Protoc. 8 (2001) 1-7)--there is no generally accepted learned helplessness protocol available for mice. This prompted us to develop a reliable helplessness procedure in C57BL/6N mice, to exclude possible artifacts, and to establish a protocol, which yields a consistent fraction of helpless mice following the shock exposure. Furthermore, we validated this protocol pharmacologically using the tricyclic antidepressant imipramine. Here, we present a mouse model with good face and predictive validity that can be used for transgenic, behavioral, and pharmacological studies.
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Affiliation(s)
- S Chourbaji
- Central Institute of Mental Health Mannheim (ZI), University of Heidelberg, Germany, J 5, D-68159 Mannheim, Germany.
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17
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Bortolato M, Aru GN, Frau R, Orrù M, Fà M, Manunta M, Puddu M, Mereu G, Gessa GL. Kappa opioid receptor activation disrupts prepulse inhibition of the acoustic startle in rats. Biol Psychiatry 2005; 57:1550-8. [PMID: 15953492 DOI: 10.1016/j.biopsych.2005.02.030] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2004] [Revised: 02/09/2005] [Accepted: 02/18/2005] [Indexed: 11/17/2022]
Abstract
BACKGROUND Compelling evidence indicates that kappa opioid receptor (KOR) agonists produce perceptual distortions in animals and humans, yet the mechanism of action and clinical relevance of such effects remain unclear. Since abnormalities in preattentional functions and informational processing are hypothesized to underlie psychotic disorders, the present study has been designed to assess the role of KOR on sensorimotor gating. METHODS The effects of the selective KOR agonist U50488 were evaluated on the behavioral paradigm of prepulse inhibition (PPI) of the acoustic startle reflex (ASR). RESULTS U50488 (1.25, 2.5, and 5 mg/kg, subcutaneous [SC]) induced a dose-dependent reduction of PPI, which was efficiently prevented by the selective KOR antagonist norbinaltorphimine (nor-BNI, 10 mg/kg, SC), as well as by the atypical antipsychotic clozapine (5, 8 mg/kg, intraperitoneal [IP]) but not by the typical antipsychotic haloperidol (.1, .5 mg/kg, IP). Conversely, nor-BNI (10 mg/kg, SC) failed to reverse the PPI disruption mediated by both apomorphine (.25 mg/kg, SC) and dizocilpine (.1 mg/kg, SC). CONCLUSIONS Our results support a pivotal role of KOR in the regulation of preattentional functions and sensorimotor gating, pointing to these receptors as a possible neurobiological substrate especially relevant to the clusters of psychosis unresponsive to typical antipsychotics.
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MESH Headings
- 3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-Isomer/pharmacology
- Acoustic Stimulation/methods
- Analgesics, Non-Narcotic/pharmacology
- Analysis of Variance
- Animals
- Antipsychotic Agents/pharmacology
- Apomorphine/pharmacology
- Clozapine/pharmacology
- Dizocilpine Maleate/pharmacology
- Dopamine Agonists/pharmacology
- Dose-Response Relationship, Drug
- Dose-Response Relationship, Radiation
- Drug Interactions
- Excitatory Amino Acid Antagonists/pharmacology
- Haloperidol/pharmacology
- Inhibition, Psychological
- Male
- Naltrexone/analogs & derivatives
- Naltrexone/pharmacology
- Narcotic Antagonists/pharmacology
- Rats
- Receptors, Opioid, kappa/physiology
- Reflex, Startle/drug effects
- Reflex, Startle/physiology
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Affiliation(s)
- Marco Bortolato
- Department of Psychiatry and Human Behavior, University of California, Irvine, California, USA.
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18
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Munro TA, Rizzacasa MA, Roth BL, Toth BA, Yan F. Studies toward the pharmacophore of salvinorin A, a potent kappa opioid receptor agonist. J Med Chem 2005; 48:345-8. [PMID: 15658846 PMCID: PMC2777653 DOI: 10.1021/jm049438q] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Salvinorin A (1), from the sage Salvia divinorum, is a potent and selective kappa opioid receptor (KOR) agonist. We screened other salvinorins and derivatives for binding affinity and functional activity at opioid receptors. Our results suggest that the methyl ester and furan ring are required for activity but that the lactone and ketone functionalities are not. Other salvinorins showed negligible binding affinity at the KOR. None of the compounds bound to mu or delta opioid receptors.
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Affiliation(s)
| | - Mark A. Rizzacasa
- Corresponding author. Tel: +61-3-8344-6488. Fax: +61-3-9347-5180. E-mail:
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19
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Abstract
This paper is the twenty-fifth consecutive installment of the annual review of research concerning the endogenous opioid system, now spanning over a quarter-century of research. It summarizes papers published during 2002 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (Section 2), and the roles of these opioid peptides and receptors in pain and analgesia (Section 3); stress and social status (Section 4); tolerance and dependence (Section 5); learning and memory (Section 6); eating and drinking (Section 7); alcohol and drugs of abuse (Section 8); sexual activity and hormones, pregnancy, development and endocrinology (Section 9); mental illness and mood (Section 10); seizures and neurologic disorders (Section 11); electrical-related activity and neurophysiology (Section 12); general activity and locomotion (Section 13); gastrointestinal, renal and hepatic functions (Section 14); cardiovascular responses (Section 15); respiration and thermoregulation (Section 16); and immunological responses (Section 17).
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, CUNY, 65-30 Kissena Blvd., Flushing, NY 11367, USA.
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20
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Munro TA, Rizzacasa MA. Salvinorins D-F, new neoclerodane diterpenoids from Salvia divinorum, and an improved method for the isolation of salvinorin A. JOURNAL OF NATURAL PRODUCTS 2003; 66:703-705. [PMID: 12762813 DOI: 10.1021/np0205699] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Three new neoclerodane diterpenoids, salvinorins D-F (4-6), have been isolated from the leaves of Salvia divinorum. The structures were elucidated by chemical and spectroscopic methods, particularly 1D and 2D NMR. A simplified isolation method using chromatography on activated carbon also gave improved yields of the controlled substance salvinorin A (1) and of salvinorin C (3).
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Affiliation(s)
- Thomas A Munro
- School of Chemistry, The University of Melbourne, Victoria, 3010, Australia
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