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Ritchie JL, Qi S, Soto DA, Swatzell SE, Grenz HI, Pruitt AY, Artimenia LM, Cooke SK, Berridge CW, Fuchs RA. Dorsal raphe to basolateral amygdala corticotropin-releasing factor circuit regulates cocaine-memory reconsolidation. Neuropsychopharmacology 2024:10.1038/s41386-024-01892-5. [PMID: 38802479 DOI: 10.1038/s41386-024-01892-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 04/17/2024] [Accepted: 05/15/2024] [Indexed: 05/29/2024]
Abstract
Environmental stimuli elicit drug craving and relapse in cocaine users by triggering the retrieval of strong cocaine-related contextual memories. Retrieval can also destabilize drug memories, requiring reconsolidation, a protein synthesis-dependent storage process, to maintain memory strength. Corticotropin-releasing factor (CRF) signaling in the basolateral amygdala (BLA) is necessary for cocaine-memory reconsolidation. We have hypothesized that a critical source of CRF in the BLA is the dorsal raphe nucleus (DR) based on its neurochemistry, anatomical connectivity, and requisite involvement in cocaine-memory reconsolidation. To test this hypothesis, male and female Sprague-Dawley rats received adeno-associated viruses to express Gi-coupled designer receptors exclusively activated by designer drugs (DREADDs) selectively in CRF neurons of the DR and injection cannulae directed at the BLA. The rats were trained to self-administer cocaine in a distinct environmental context then received extinction training in a different context. Next, they were briefly re-exposed to the cocaine-predictive context to destabilize (reactivate) cocaine memories. Intra-BLA infusions of the DREADD agonist deschloroclozapine (DCZ; 0.1 mM, 0.5 µL/hemisphere) immediately after memory reactivation attenuated cocaine-memory strength, relative to vehicle infusion. This was indicated by a selective, DCZ-induced and memory reactivation-dependent decrease in drug-seeking behavior in the cocaine-predictive context in DREADD-expressing males and females at test compared to respective controls. Notably, BLA-projecting DR CRF neurons that exhibited increased c-Fos expression during memory reconsolidation co-expressed the glutamatergic neuronal marker, vesicular glutamate transporter 3. Together, these findings suggest that the DRCRF → BLA circuit is engaged to maintain cocaine-memory strength after memory destabilization, and this phenomenon may be mediated by DR CRF and/or glutamate release in the BLA.
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Affiliation(s)
- Jobe L Ritchie
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - Shuyi Qi
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - David A Soto
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - Sydney E Swatzell
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - Hope I Grenz
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - Avery Y Pruitt
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - Lilia M Artimenia
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - Spencer K Cooke
- Psychology Department, University of Wisconsin-Madison, Madison, WI, USA
| | - Craig W Berridge
- Psychology Department, University of Wisconsin-Madison, Madison, WI, USA
| | - Rita A Fuchs
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA.
- Washington State University Alcohol and Drug Abuse Research Program, Pullman, WA, USA.
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2
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Ritchie JL, Qi S, Soto DA, Swatzell SE, Grenz HI, Pruitt AY, Artimenia LM, Cooke SK, Berridge CW, Fuchs RA. Dorsal Raphe to Basolateral Amygdala Corticotropin-Releasing Factor Circuit Regulates Cocaine-Memory Reconsolidation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.10.579725. [PMID: 38405858 PMCID: PMC10888894 DOI: 10.1101/2024.02.10.579725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Environmental stimuli elicit drug craving and relapse in cocaine users by triggering the retrieval of strong cocainerelated contextual memories. Retrieval can also destabilize drug memories, requiring reconsolidation, a protein synthesis-dependent storage process, to maintain memory strength. Corticotropin-releasing factor (CRF) signaling in the basolateral amygdala (BLA) is necessary for cocainememory reconsolidation. We have hypothesized that a critical source of CRF in the BLA is the dorsal raphe nucleus (DR) based on its neurochemistry, anatomical connectivity, and requisite involvement in cocaine-memory reconsolidation. To test this hypothesis, male and female Sprague-Dawley rats received adeno-associated viruses to express Gi-coupled designer receptors exclusively activated by designer drugs (DREADDs) selectively in CRF neurons of the DR and injection cannulae directed at the BLA. The rats were trained to self-administer cocaine in a distinct environmental context then received extinction training in a different context. They were then briefly reexposed to the cocaine-predictive context to destabilize (reactivate) cocaine memories. Intra-BLA infusions of the DREADD agonist deschloroclozapine (DCZ; 0.1 mM, 0.5 μL/hemisphere) after memory reactivation attenuated cocaine-memory strength, relative to vehicle infusion. This was indicated by a selective, DCZ-induced and memory reactivation-dependent decrease in drug-seeking behavior in the cocaine-predictive context in DREADD-expressing males and females at test compared to respective controls. Notably, BLA-projecting DR CRF neurons that exhibited increased c-Fos expression during memory reconsolidation co-expressed glutamatergic and serotonergic neuronal markers. Together, these findings suggest that the DRCRF → BLA circuit is engaged to maintain cocaine-memory strength after memory destabilization, and this phenomenon may be mediated by DR CRF, glutamate, and/or serotonin release in the BLA.
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Affiliation(s)
- Jobe L. Ritchie
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - Shuyi Qi
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - David A. Soto
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - Sydney E. Swatzell
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - Hope I. Grenz
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - Avery Y. Pruitt
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - Lilia M. Artimenia
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
| | - Spencer K. Cooke
- Psychology Department, University of Wisconsin-Madison, Madison, WI, USA
| | - Craig W. Berridge
- Psychology Department, University of Wisconsin-Madison, Madison, WI, USA
| | - Rita A. Fuchs
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, WA, USA
- Washington State University Alcohol and Drug Abuse Research Program, Pullman, WA, USA
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3
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Milton AL. Drug memory reconsolidation: from molecular mechanisms to the clinical context. Transl Psychiatry 2023; 13:370. [PMID: 38040677 PMCID: PMC10692359 DOI: 10.1038/s41398-023-02666-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 11/07/2023] [Accepted: 11/13/2023] [Indexed: 12/03/2023] Open
Abstract
Since its rediscovery at the beginning of the 21st Century, memory reconsolidation has been proposed to be a therapeutic target for reducing the impact of emotional memories that can go awry in mental health disorders such as drug addiction (substance use disorder, SUD). Addiction can be conceptualised as a disorder of learning and memory, in which both pavlovian and instrumental learning systems become hijacked into supporting drug-seeking and drug-taking behaviours. The past two decades of research have characterised the details of the molecular pathways supporting the reconsolidation of pavlovian cue-drug memories, with more recent work indicating that the reconsolidation of instrumental drug-seeking memories also relies upon similar mechanisms. This narrative review considers what is known about the mechanisms underlying the reconsolidation of pavlovian and instrumental memories associated with drug use, how these approaches have translated to experimental medicine studies, and the challenges and opportunities for the clinical use of reconsolidation-based therapies.
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Affiliation(s)
- Amy L Milton
- Department of Psychology, University of Cambridge, Cambridge, UK.
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4
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Caban Rivera C, Price R, Fortuna RP, Li C, Do C, Shinkle J, Ghilotti MG, Shi X, Kirby LG, Smith GM, Unterwald EM. The ventral hippocampus and nucleus accumbens as neural substrates for cocaine contextual memory reconsolidation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.29.569314. [PMID: 38076811 PMCID: PMC10705494 DOI: 10.1101/2023.11.29.569314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Drug craving triggered by cues that were once associated with drug intoxication is a major contributor to continued drug-seeking behaviors. Addictive drugs engage molecular pathways of associative learning and memory. Reactivated memories are vulnerable to disruption by interference with the process of reconsolidation, hence targeting reconsolidation could be a strategy to reduce cue-induced drug craving and relapse. Here we examined the circuitry of cocaine contextual memory reconsolidation and explored neuroplasticity following memory reactivation. Mice underwent chemogenetic inhibition of either nucleus accumbens (NA) neurons or the glutamatergic projection neurons from the ventral hippocampus (vHPC) to NA using inhibitory designer receptors exclusively activated by designer drugs (iDREADD). Mice underwent cocaine conditioned place preference followed by reactivation of the cocaine contextual memory. Clozapine-N-oxide (CNO) was administered after memory reactivation to inhibit either NA neurons or the accumbens-projecting vHPC neurons during the reconsolidation period. When retested 3 days later, a significant reduction in the previously established preference for the cocaine context was found in both conditions. FosTRAP2-Ai14 mice were used to identify neurons activated by cocaine memory recall and to evaluate plasticity in NA medium spiny neurons (MSNs) and vHPC pyramidal neurons upon recall of cocaine memories. Results indicate a significant increase in dendritic spine density in NA MSNs activated by cocaine memory recall, particularly of the thin spine type. Sholl analysis indicated longer dendritic length and more branching of NA MSNs after cocaine memory recall than without memory reactivation. vHPC neurons showed increased spine density, with the most robust change in stubby spines. These results implicate a circuit involving glutamatergic projections from the vHPC onto NA neurons which is necessary for the reconsolidation of cocaine memories. Interruption of cocaine memory reconsolidation reduced drug-seeking behavior.
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Affiliation(s)
- Carolina Caban Rivera
- Center for Substance Abuse Research and Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Rachael Price
- Center for Substance Abuse Research and Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Ricardo P. Fortuna
- Center for Substance Abuse Research and Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Chen Li
- Center for Substance Abuse Research and Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Chau Do
- Center for Substance Abuse Research and Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Justin Shinkle
- Center for Substance Abuse Research and Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Marco G. Ghilotti
- Center for Substance Abuse Research and Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Xiangdang Shi
- Center for Substance Abuse Research and Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Lynn G. Kirby
- Center for Substance Abuse Research and Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - George M. Smith
- Shriners Hospitals Pediatric Research Center and Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Ellen M. Unterwald
- Center for Substance Abuse Research and Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
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Bui UTD, Milton AL. Making Leaps and Hitting Boundaries in Reconsolidation: Overcoming Boundary Conditions to Increase Clinical Translatability of Reconsolidation-based Therapies. Neuroscience 2023; 519:198-206. [PMID: 36933761 DOI: 10.1016/j.neuroscience.2023.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/03/2023] [Accepted: 03/11/2023] [Indexed: 03/18/2023]
Abstract
Reconsolidation results in the restabilisation, and thus persistence, of a memory made labile by retrieval, and interfering with this process is thought to enable modification or weakening of the original trace. As such, reconsolidation-blockade has been a focus of research aiming to target the maladaptive memories underlying mental health disorders, including post-traumatic stress disorder and drug addiction. Current first-line therapies are not effective for all patients, and a substantial proportion of those for whom therapies are effective later relapse. A reconsolidation-based intervention would be invaluable as an alternative treatment for these conditions. However, the translation of reconsolidation-based therapies to the clinic presents a number of challenges, with arguably the greatest being the overcoming of the boundary conditions governing the opening of the reconsolidation window. These include factors such as the age and strength of memory, and can broadly be divided into two categories: intrinsic features of the targeted memory itself, and parameters of the reactivation procedure used. With maladaptive memory characteristics inevitably varying amongst individuals, manipulation of the other limitations imposed by procedural variables have been explored to circumvent the boundary conditions on reconsolidation. Although several apparently discrepant results remain to be reconciled and these limitations yet to be truly defined, many studies have produced successful results which encouragingly demonstrate that boundary conditions may be overcome using various proposed strategies to enable translation of a reconsolidation-based intervention to clinical use.
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Affiliation(s)
- Uyen T D Bui
- Department of Psychology, University of Cambridge, UK
| | - Amy L Milton
- Department of Psychology, University of Cambridge, UK.
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Barak S, Goltseker K. New Approaches for Alcohol Use Disorder Treatment via Memory Retrieval and Reconsolidation Manipulations. Curr Top Behav Neurosci 2023. [PMID: 36627475 DOI: 10.1007/7854_2022_411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Relapse to alcohol seeking and drinking is a major clinical challenge in alcohol use disorder and is frequently brought about by cue-induced craving, caused by exposure to cues that evoke alcohol-related memories. It has been postulated that memories become labile for manipulation shortly after their retrieval and then restabilize in a "memory reconsolidation" process. Disruption or interference with the reconsolidation of drug-associated memories has been suggested as a possible strategy to reduce or even prevent cue-induced craving and relapse. Here, we review literature demonstrating the capacity of behavioral or pharmacological manipulations to reduce relapse in animal models and humans when applied after a short retrieval of memories associated with alcohol, suggestively disrupting the reconsolidation of such memories. We suggest that while there is a clear potential of using post-retrieval manipulations to target specific relapse-evoking memories, future research should be more systematic, standardized, and translational. Specifically, we discuss several critical limitations and boundary conditions, which should be addressed to improve consistency and replicability in the field and lead to the development of an efficient reconsolidation-based relapse prevention therapy.
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Affiliation(s)
- Segev Barak
- School of Psychological Sciences, Tel Aviv University, Tel Aviv, Israel.
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
| | - Koral Goltseker
- Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY, USA
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Osorio-Gómez D, Miranda MI, Guzmán-Ramos K, Bermúdez-Rattoni F. Transforming experiences: Neurobiology of memory updating/editing. Front Syst Neurosci 2023; 17:1103770. [PMID: 36896148 PMCID: PMC9989287 DOI: 10.3389/fnsys.2023.1103770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 02/07/2023] [Indexed: 02/23/2023] Open
Abstract
Long-term memory is achieved through a consolidation process where structural and molecular changes integrate information into a stable memory. However, environmental conditions constantly change, and organisms must adapt their behavior by updating their memories, providing dynamic flexibility for adaptive responses. Consequently, novel stimulation/experiences can be integrated during memory retrieval; where consolidated memories are updated by a dynamic process after the appearance of a prediction error or by the exposure to new information, generating edited memories. This review will discuss the neurobiological systems involved in memory updating including recognition memory and emotional memories. In this regard, we will review the salient and emotional experiences that promote the gradual shifting from displeasure to pleasure (or vice versa), leading to hedonic or aversive responses, throughout memory updating. Finally, we will discuss evidence regarding memory updating and its potential clinical implication in drug addiction, phobias, and post-traumatic stress disorder.
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Affiliation(s)
- Daniel Osorio-Gómez
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Maria Isabel Miranda
- Departamento de Neurobiología Conductual y Cognitiva, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla, Mexico
| | - Kioko Guzmán-Ramos
- División de Ciencias Biológicas y de la Salud, Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana, Lerma de Villada, Mexico
| | - Federico Bermúdez-Rattoni
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
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8
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Noël X. A critical perspective on updating drug memories through the integration of memory editing and brain stimulation. Front Psychiatry 2023; 14:1161879. [PMID: 37124256 PMCID: PMC10140428 DOI: 10.3389/fpsyt.2023.1161879] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 03/27/2023] [Indexed: 05/02/2023] Open
Abstract
Addiction is a persistent, recurring condition characterized by repeated relapses despite the desire to control drug use or maintain sobriety. The attainment of abstinence is hindered by persistent maladaptive drug-associated memories, which drive drug-seeking and use behavior. This article examines the preliminary evidence supporting the combination of non-invasive brain stimulation (NIBS) techniques and memory editing (or reconsolidation) interventions as add-on forms of treatment for individuals with substance-related disorders (SUD). Studies have shown that NIBS can modestly reduce drug use and craving through improved cognitive control or other undetermined reasons. Memory reconsolidation, a process by which a previously consolidated memory trace can be made labile again, can potentially erase or significantly weaken SUD memories underpinning craving and the propensity for relapse. This approach conveys enthusiasm while also emphasizing the importance of managing boundary conditions and null results for interventions found on fear memory reconsolidation. Recent studies, which align with the state-dependency and activity-selectivity hypotheses, have shown that the combination of NIBS and behavioral interventions holds promise for treating SUD by reducing self-reported and physiological aspects of craving. Effective long-term outcomes for this procedure require better identification of critical memories, a deeper understanding of the brain mechanisms underlying SUD and memory reconsolidation and overcoming any boundary conditions of destabilized memories. This will enable the procedure to be personalized to the unique needs of individual patients.
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Affiliation(s)
- Xavier Noël
- Laboratoire de Psychologie Médicale et d’Addictologie, Faculty of Medicine, Université Libre de Bruxelles (ULB), Brussels, Belgium
- Neuroscience Institute (UNI), Université Libre de Bruxelles (ULB), Brussels, Belgium
- *Correspondence: Xavier Noël,
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Lonergan M, Saumier D, Pigeon S, Etienne PE, Brunet A. Treatment of adjustment disorder stemming from romantic betrayal using memory reactivation under propranolol: A open-label interrupted time series trial. J Affect Disord 2022; 317:98-106. [PMID: 36031005 DOI: 10.1016/j.jad.2022.08.082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 05/25/2022] [Accepted: 08/22/2022] [Indexed: 10/31/2022]
Abstract
OBJECTIVES In a sustained relationship, romantic betrayal is a catastrophic event that can precipitate an adjustment disorder (AD). Surprisingly, there exists no empirically validated treatment for AD, despite its high prevalence in clinical practice. Considering the promise of memory reactivation under propranolol (i.e., reconsolidation interference) for treating posttraumatic stress disorder, we sought to extend this finding to AD, given that in both disorders, symptoms stem from an identified stressor. METHOD A single-blind interrupted time series design was used to examine the efficacy of memory reactivation under propranolol to alleviate symptoms of AD. After being placed on a 4-week waitlist, sixty-one participants received 5 weekly 25-min treatments during which they recalled the betrayal event, 1 h after having orally ingested the beta-blocker propranolol. RESULTS Segmented regression analyses on the intent-to-treat sample revealed that AD symptoms significantly decreased during the treatment phase (pre/post Cohen's d = 1.44), compared to the waitlist phase (d = 0.01). Significant pre/post reductions in anxio-depressive symptomatology were also found. Improvement was maintained at the 4-month follow-up on all outcomes. CONCLUSION Memory reactivation under propranolol shows promise in reducing symptoms of AD. This study provides the theoretical framework and necessary effect sizes to inform larger, double-blind, placebo-controlled clinical trials.
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Affiliation(s)
- Michelle Lonergan
- University of Ottawa, School of Psychology, Ottawa, Ontario, Canada; Research Center of the Douglas Mental Health University Institute, Montreal, Québec, Canada
| | - Daniel Saumier
- Research Center of the Douglas Mental Health University Institute, Montreal, Québec, Canada; University of Sherbrooke, Department of Psychology, Longueuil, Québec, Canada
| | - Sereena Pigeon
- Research Center of the Douglas Mental Health University Institute, Montreal, Québec, Canada; McGill University, Department of Educational and Counselling Psychology, Montreal, Québec, Canada
| | - Pierre E Etienne
- Research Center of the Douglas Mental Health University Institute, Montreal, Québec, Canada
| | - Alain Brunet
- Research Center of the Douglas Mental Health University Institute, Montreal, Québec, Canada; McGill University, Department of Psychiatry, Montreal, Québec, Canada.
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Qi S, Tan SM, Wang R, Higginbotham JA, Ritchie JL, Ibarra CK, Arguello AA, Christian RJ, Fuchs RA. Optogenetic inhibition of the dorsal hippocampus CA3 region during early-stage cocaine-memory reconsolidation disrupts subsequent context-induced cocaine seeking in rats. Neuropsychopharmacology 2022; 47:1473-1483. [PMID: 35581381 PMCID: PMC9205994 DOI: 10.1038/s41386-022-01342-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/11/2022] [Accepted: 05/07/2022] [Indexed: 11/09/2022]
Abstract
The dorsal hippocampus (DH) is key to the maintenance of cocaine memories through reconsolidation into long-term memory stores after retrieval-induced memory destabilization. Here, we examined the time-dependent role of the cornu ammonis 3 DH subregion (dCA3) in cocaine-memory reconsolidation by utilizing the temporal and spatial specificity of optogenetics. eNpHR3.0-eYFP- or eYFP-expressing male Sprague-Dawley rats were trained to lever press for cocaine infusions in a distinct context and received extinction training in a different context. Rats were then re-exposed to the cocaine-paired context for 15 min to destabilize cocaine memories (memory reactivation) or remained in their home cages (no-reactivation). Optogenetic dCA3 inhibition for one hour immediately after memory reactivation reduced c-Fos expression (index of neuronal activation) in dCA3 stratum pyramidale (SP) glutamatergic and GABAergic neurons and in stratum lucidum (SL) GABAergic neurons during reconsolidation. Furthermore, dCA3 inhibition attenuated drug-seeking behavior (non-reinforced lever presses) selectively in the cocaine-paired context three days later (recall test), relative to no photoinhibition. This behavioral effect was eNpHR3.0-, memory-reactivation, and time-dependent, indicating a memory-reconsolidation deficit. Based on this observation and our previous finding that protein synthesis in the DH is not necessary for cocaine-memory reconsolidation, we postulate that recurrent pyramidal neuronal activity in the dCA3 may maintain labile cocaine memories prior to protein synthesis-dependent reconsolidation elsewhere, and SL/SP interneurons may facilitate this process by limiting extraneous neuronal activity. Interestingly, SL c-Fos expression was reduced at recall concomitant with impairment in cocaine-seeking behavior, suggesting that SL neurons may also facilitate cocaine-memory retrieval by inhibiting non-engram neuronal activity.
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Affiliation(s)
- Shuyi Qi
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, Washington, USA
| | - Shi Min Tan
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, Washington, USA
| | - Rong Wang
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, Washington, USA
| | - Jessica A Higginbotham
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, Washington, USA
| | - Jobe L Ritchie
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, Washington, USA
| | - Christopher K Ibarra
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, Washington, USA
| | - Amy A Arguello
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, Washington, USA
| | - Robert J Christian
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, Washington, USA
| | - Rita A Fuchs
- Department of Integrative Physiology and Neuroscience, Washington State University College of Veterinary Medicine, Pullman, Washington, USA.
- Alcohol and Drug Abuse Research Program, Washington State University, Pullman, Washington, USA.
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11
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Brunet A, Sapkota RP, Guragain B, Tremblay J, Saumier D, Kirmayer LJ. Tackling the global problem of traumatic stress in low-income countries: a pilot clinical trial comparing reconsolidation therapy to paroxetine in Nepal. BMC Psychiatry 2021; 21:434. [PMID: 34479508 PMCID: PMC8417983 DOI: 10.1186/s12888-021-03441-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 08/14/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Traumatic stress is a global mental health problem requiring novel, easily implemented treatment solutions. We compared the effectiveness and efficiency of Reconsolidation Therapy (RT) to the well-established antidepressant paroxetine, in reducing symptoms of traumatic stress among patients from Nepal, a low-income country. METHODS Forty-six adults with posttraumatic stress disorder (PTSD) were randomized to one of two groups. The reconsolidation blocker propranolol was administered 90 min before briefly recalling a traumatic memory with a therapist, weekly for six consecutive weeks. This was compared to daily paroxetine for 26 weeks. Self-reported PTSD symptoms were assessed blindly at the 7th, 13th, and 26th weeks. RESULTS An intent-to-treat analysis revealed a robust pre- to post-treatment main effect (β1 = - 4.83, 95% CI = [- 5.66, - 4.01], p < .001), whereby both groups improved, with Cohen's effect sizes of d = 2.34 (95% CI = [1.57, 3.12]) for paroxetine, and of 2.82 (95% CI = [1.98, 3.66]) for RT after 7 weeks, suggesting treatment effectiveness for both groups in a real-world setting. Three and six-month follow-up yielded further significant improvement in both groups, which did not differ from each other. CONCLUSION RT also displayed promising efficiency, considering that it had been discontinued weeks earlier while the paroxetine treatment was continued, as recommended. RT could be taught in low-income countries as part of the local therapeutic resources to treat the core symptoms of PTSD, provided that such results are replicated on a broader scale. TRIAL REGISTRATION ISRCTN34308454 (11/10/2017).
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Affiliation(s)
- Alain Brunet
- Research Centre of the Douglas Mental Health University Institute, and Department of Psychiatry, McGill University, 6875 boulevard LaSalle, Montréal, Quebec, H4H 1R3, Canada.
| | - Ram P Sapkota
- Research Centre of the Douglas Mental Health University Institute, and Department of Psychiatry, McGill University, 6875 boulevard LaSalle, Montréal, Quebec, H4H 1R3, Canada
- Division of Social and Transcultural Psychiatry, Global Mental Health Program, McGill University, Montréal, QC, Canada
| | | | - Jacques Tremblay
- Research Centre of the Douglas Mental Health University Institute, and Department of Psychiatry, McGill University, 6875 boulevard LaSalle, Montréal, Quebec, H4H 1R3, Canada
| | - Daniel Saumier
- Research Centre of the Douglas Mental Health University Institute, and Department of Psychiatry, McGill University, 6875 boulevard LaSalle, Montréal, Quebec, H4H 1R3, Canada
| | - Laurence J Kirmayer
- Division of Social and Transcultural Psychiatry, Global Mental Health Program, McGill University, Montréal, QC, Canada
- Culture and Mental Health Research Unit, Lady Davis Institute, Jewish General Hospital, Montréal, QC, Canada
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12
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Lin X, Deng J, Yuan K, Wang Q, Liu L, Bao Y, Xue Y, Li P, Que J, Liu J, Yan W, Sun H, Wu P, Shi J, Shi L, Lu L. Neural substrates of propranolol-induced impairments in the reconsolidation of nicotine-associated memories in smokers. Transl Psychiatry 2021; 11:441. [PMID: 34429396 PMCID: PMC8385067 DOI: 10.1038/s41398-021-01566-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 03/07/2021] [Accepted: 08/03/2021] [Indexed: 02/07/2023] Open
Abstract
The majority of smokers relapse even after successfully quitting because of the craving to smoking after unexpectedly re-exposed to smoking-related cues. This conditioned craving is mediated by reward memories that are frequently experienced and stubbornly resistant to treatment. Reconsolidation theory posits that well-consolidated memories are destabilized after retrieval, and this process renders memories labile and vulnerable to amnestic intervention. This study tests the retrieval reconsolidation procedure to decrease nicotine craving among people who smoke. In this study, 52 male smokers received a single dose of propranolol (n = 27) or placebo (n = 25) before the reactivation of nicotine-associated memories to impair the reconsolidation process. Craving for smoking and neural activity in response to smoking-related cues served as primary outcomes. Functional magnetic resonance imaging was performed during the memory reconsolidation process. The disruption of reconsolidation by propranolol decreased craving for smoking. Reactivity of the postcentral gyrus in response to smoking-related cues also decreased in the propranolol group after the reconsolidation manipulation. Functional connectivity between the hippocampus and striatum was higher during memory reconsolidation in the propranolol group. Furthermore, the increase in coupling between the hippocampus and striatum positively correlated with the decrease in craving after the reconsolidation manipulation in the propranolol group. Propranolol administration before memory reactivation disrupted the reconsolidation of smoking-related memories in smokers by mediating brain regions that are involved in memory and reward processing. These findings demonstrate the noradrenergic regulation of memory reconsolidation in humans and suggest that adjunct propranolol administration can facilitate the treatment of nicotine dependence. The present study was pre-registered at ClinicalTrials.gov (registration no. ChiCTR1900024412).
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Affiliation(s)
- Xiao Lin
- grid.11135.370000 0001 2256 9319Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Chinese Academy of Medical Sciences Research Unit (No. 2018RU006), Peking University, 100191 Beijing, China
| | - Jiahui Deng
- grid.11135.370000 0001 2256 9319Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Chinese Academy of Medical Sciences Research Unit (No. 2018RU006), Peking University, 100191 Beijing, China
| | - Kai Yuan
- grid.11135.370000 0001 2256 9319Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Chinese Academy of Medical Sciences Research Unit (No. 2018RU006), Peking University, 100191 Beijing, China
| | - Qiandong Wang
- grid.20513.350000 0004 1789 9964Beijing Key Laboratory of Applied Experimental Psychology, National Demonstration Center for Experimental Psychology Education (Beijing Normal University), Faculty of Psychology, Beijing Normal University, 100875 Beijing, China
| | - Lin Liu
- grid.11135.370000 0001 2256 9319Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Chinese Academy of Medical Sciences Research Unit (No. 2018RU006), Peking University, 100191 Beijing, China
| | - Yanping Bao
- grid.11135.370000 0001 2256 9319National Institute on Drug Dependence and Beijing Key Laboratory on Drug Dependence Research, Peking University, 100191 Beijing, China
| | - Yanxue Xue
- grid.11135.370000 0001 2256 9319National Institute on Drug Dependence and Beijing Key Laboratory on Drug Dependence Research, Peking University, 100191 Beijing, China
| | - Peng Li
- grid.11135.370000 0001 2256 9319Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Chinese Academy of Medical Sciences Research Unit (No. 2018RU006), Peking University, 100191 Beijing, China
| | - Jianyu Que
- grid.11135.370000 0001 2256 9319Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Chinese Academy of Medical Sciences Research Unit (No. 2018RU006), Peking University, 100191 Beijing, China
| | - Jiajia Liu
- grid.11135.370000 0001 2256 9319Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Chinese Academy of Medical Sciences Research Unit (No. 2018RU006), Peking University, 100191 Beijing, China
| | - Wei Yan
- grid.11135.370000 0001 2256 9319Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Chinese Academy of Medical Sciences Research Unit (No. 2018RU006), Peking University, 100191 Beijing, China
| | - Hongqiang Sun
- grid.11135.370000 0001 2256 9319Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Chinese Academy of Medical Sciences Research Unit (No. 2018RU006), Peking University, 100191 Beijing, China
| | - Ping Wu
- grid.11135.370000 0001 2256 9319National Institute on Drug Dependence and Beijing Key Laboratory on Drug Dependence Research, Peking University, 100191 Beijing, China
| | - Jie Shi
- grid.11135.370000 0001 2256 9319National Institute on Drug Dependence and Beijing Key Laboratory on Drug Dependence Research, Peking University, 100191 Beijing, China
| | - Le Shi
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Chinese Academy of Medical Sciences Research Unit (No. 2018RU006), Peking University, 100191, Beijing, China.
| | - Lin Lu
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Chinese Academy of Medical Sciences Research Unit (No. 2018RU006), Peking University, 100191, Beijing, China. .,National Institute on Drug Dependence and Beijing Key Laboratory on Drug Dependence Research, Peking University, 100191, Beijing, China. .,Peking-Tsinghua Center for Life Sciences and PKU-IDG/McGovern Institute for Brain Research, 100191, Beijing, China.
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13
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Traumatic memory reactivation with or without propranolol for PTSD and comorbid MD symptoms: a randomised clinical trial. Neuropsychopharmacology 2021; 46:1643-1649. [PMID: 33612830 PMCID: PMC7897457 DOI: 10.1038/s41386-021-00984-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/29/2020] [Accepted: 01/30/2021] [Indexed: 11/10/2022]
Abstract
Post-traumatic stress disorder (PTSD) is difficult to treat but one promising strategy is to block memory reconsolidation of the traumatic event. This study aimed to evaluate the efficacy of traumatic memory reactivation under the influence of propranolol, a noradrenergic beta-receptor blocker, in reducing PTSD symptoms as well as comorbid major depression (MD) symptoms. We conducted a double blind, placebo-controlled, randomised clinical trial in 66 adults diagnosed with longstanding PTSD. Propranolol or a placebo was administered 90 min before a brief memory reactivation session, once a week for 6 consecutive weeks. Measures included the SCID PTSD module, the PTSD Check List (PCL-S) and the Beck Depression Inventory-II (BDI-II). PTSD symptoms decreased both in the pre-reactivation propranolol group (39.28%) and the pre-reactivation placebo group (34.48 %). During the 6 treatment sessions, PCL-S and BDI-II scores decreased to similar extent in both groups and there were no treatment differences. During the 3-month follow-up period, there were no treatment effects for the mean PCL-S and BDI-II scores. However, in patients with severe PTSD symptoms (PCL-S ≥ 65) before treatment, PCL-S and BDI-II scores continued to decline 3 months after the end of treatment in the propranolol group while they increased in the placebo group. Repeated traumatic memory reactivation seemed to be effective for PTSD and comorbid MD symptoms. However, the efficacy of propranolol was not greater than that of placebo 1 week post treatment. Furthermore, in this traumatic memory reactivation, PTSD symptom severity at baseline might have influenced the post-treatment effect of propranolol.
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14
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Targeting the Reconsolidation of Licit Drug Memories to Prevent Relapse: Focus on Alcohol and Nicotine. Int J Mol Sci 2021; 22:ijms22084090. [PMID: 33920982 PMCID: PMC8071281 DOI: 10.3390/ijms22084090] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 04/11/2021] [Accepted: 04/12/2021] [Indexed: 12/29/2022] Open
Abstract
Alcohol and nicotine are widely abused legal substances worldwide. Relapse to alcohol or tobacco seeking and consumption after abstinence is a major clinical challenge, and is often evoked by cue-induced craving. Therefore, disruption of the memory for the cue–drug association is expected to suppress relapse. Memories have been postulated to become labile shortly after their retrieval, during a “memory reconsolidation” process. Interference with the reconsolidation of drug-associated memories has been suggested as a possible strategy to reduce or even prevent cue-induced craving and relapse. Here, we surveyed the growing body of studies in animal models and in humans assessing the effectiveness of pharmacological or behavioral manipulations in reducing relapse by interfering with the reconsolidation of alcohol and nicotine/tobacco memories. Our review points to the potential of targeting the reconsolidation of these memories as a strategy to suppress relapse to alcohol drinking and tobacco smoking. However, we discuss several critical limitations and boundary conditions, which should be considered to improve the consistency and replicability in the field, and for development of an efficient reconsolidation-based relapse-prevention therapy.
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15
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Becker JE, Price JL, Leonard D, Suris A, Kandil E, Shaw M, Kroener S, Brown ES, Adinoff B. The Efficacy of Lidocaine in Disrupting Cocaine Cue-Induced Memory Reconsolidation. Drug Alcohol Depend 2020; 212:108062. [PMID: 32480252 DOI: 10.1016/j.drugalcdep.2020.108062] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 04/06/2020] [Accepted: 05/04/2020] [Indexed: 01/10/2023]
Abstract
RATIONAL Cue-induced craving memories, linked to drug-seeking behaviors, require key molecular processes for memory reconsolidation. Lidocaine, a sodium channel blocker, inhibits NMDA receptor activation and suppresses nitric oxide and ERK production. These processes are required for memory re-consolidation; inhibiting them may reduce cue-related craving memories in cocaine dependent subjects. OBJECTIVES To assess the efficacy of lidocaine in decreasing cue-induced cocaine craving and cocaine use. METHODS Treatment-seeking cocaine-dependent participants (n = 33, 25 men) were recruited. Personalized craving and relaxation scripts were developed. Participants were then randomly assigned in a double-blind design to either receive intravenous lidocaine immediately following a cocaine craving script (lidocaine/craving), saline following a craving script (saline/craving), or lidocaine following a relaxation script (lidocaine/relax). One week following the infusion, cue-induced craving was assessed in the same paradigm without an infusion. Cocaine use and craving were assessed for 4 weeks following infusion. RESULTS The administration of lidocaine during craving induction (lidocaine/craving) did not decrease cue-induced craving during craving reactivation one week later or craving and cocaine use over the 4-week follow-up period compared to the saline/craving group. There were no significant differences in craving and cocaine use between the lidocaine/relax and saline/craving groups. CONCLUSION Lidocaine administered following craving induction did not decrease subsequent cue-induced craving or cocaine use. Blocking the reconsolidation of craving-related memories with pharmacological agents remains an important area of investigation.
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Affiliation(s)
- Josh E Becker
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, TX USA; School of Behavior and Brain Sciences, UT Dallas, Dallas, TX USA
| | - Julianne L Price
- Department of Psychiatry, University of Florida, Gainesville, FL USA
| | - David Leonard
- David Leonard Statistical Consulting, Wichita Falls, TX USA
| | - Alina Suris
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, TX USA; VA North Texas Health Care System, Dallas, TX USA
| | - Enas Kandil
- Department of Psychiatry, University of Colorado School of Medicine, Aurora, CO USA; Department of Anesthesiology & Pain Management, UT Southwestern Medical Center, Dallas, TX USA; School of Behavior and Brain Sciences, UT Dallas, Dallas, TX USA
| | - Meredith Shaw
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, TX USA; VA North Texas Health Care System, Dallas, TX USA
| | - Sven Kroener
- School of Behavior and Brain Sciences, UT Dallas, Dallas, TX USA
| | - E Sherwood Brown
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, TX USA
| | - Bryon Adinoff
- Department of Psychiatry, University of Colorado School of Medicine, Aurora, CO USA
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16
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Correia C, Romieu P, Olmstead MC, Befort K. Can cocaine-induced neuroinflammation explain maladaptive cocaine-associated memories? Neurosci Biobehav Rev 2020; 111:69-83. [PMID: 31935376 DOI: 10.1016/j.neubiorev.2020.01.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 12/20/2019] [Accepted: 01/01/2020] [Indexed: 12/19/2022]
Abstract
Persistent and intrusive memories define a number of psychiatric disorders, including posttraumatic stress disorder and substance use disorder. In the latter, memory for drug-paired cues plays a critical role in sustaining compulsive drug use as these are potent triggers of relapse. As with many drugs, cocaine-cue associated memory is strengthened across presentations as cues become reliable predictors of drug availability. Recently, the targeting of cocaine-associated memory through disruption of the reconsolidation process has emerged as a potential therapeutic strategy; reconsolidation reflects the active process by which memory is re-stabilized after retrieval. In addition, a separate line of work reveals that neuroinflammatory markers, regulated by cocaine intake, play a role in memory processes. Our review brings these two literatures together by summarizing recent findings on cocaine-associated reconsolidation and cocaine-induced neuroinflammation. We discuss the interactions between reconsolidation processes and neuroinflammation following cocaine use, concluding with a new perspective on treatment to decrease risk of relapse to cocaine use.
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Affiliation(s)
- Caroline Correia
- Université de Strasbourg, Laboratoire de Neurosciences Cognitives et Adaptatives (LNCA), Centre de la Recherche Nationale Scientifique, UMR 7364, Faculté de Psychologie, 12 rue Goethe, F-67000, Strasbourg, France
| | - Pascal Romieu
- Université de Strasbourg, Laboratoire de Neurosciences Cognitives et Adaptatives (LNCA), Centre de la Recherche Nationale Scientifique, UMR 7364, Faculté de Psychologie, 12 rue Goethe, F-67000, Strasbourg, France
| | - Mary C Olmstead
- Dept. Psychology, Centre for Neuroscience Studies, Queen's University, Kingston ON, K7L 3N6, Canada
| | - Katia Befort
- Université de Strasbourg, Laboratoire de Neurosciences Cognitives et Adaptatives (LNCA), Centre de la Recherche Nationale Scientifique, UMR 7364, Faculté de Psychologie, 12 rue Goethe, F-67000, Strasbourg, France.
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17
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Dinter C, Hermann D, Heckmann J, Hill H, Reinhard I, Vollstädt‐Klein S, Kirsch P, Kiefer F. Reconsolidation impairment of reward memory by stimulating stress response. Addict Biol 2020; 25:e12712. [PMID: 30672054 DOI: 10.1111/adb.12712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 12/05/2018] [Accepted: 12/05/2018] [Indexed: 11/29/2022]
Abstract
Research in memory reconsolidation has raised hope for new treatment options of persistent psychiatric disorders like substance dependence and post-traumatic stress disorder (PTSD). While animal research showed successful memory modification by interfering with reconsolidation, human research requires less invasive techniques. In our pilot study, we aimed to reduce appetitive memory reconsolidation of a newly acquired reward memory by exerting a stressor. Thirty healthy participants were randomly assigned to two groups performing a monetary reward paradigm at a personal computer. Day 1 was considered to allow for memory acquisition; on day 2, the experimental group was exposed to a frightening stimulus in the reconsolidation window; and day 3 again served to determine reward memory effects. Measures of reward memory were reaction times to reward announcing stimuli (ie, showing instrumental behavior), actual reward gained, and electrodermal response as a measure for reward anticipation. We found significantly smaller reaction time improvements to reward stimuli over time in the experimental group, as well as reduced achievements in monetary reward. Electrodermal response to reward announcing stimuli was lower in the experimental group after intervention, whereas it was higher in the untreated group. Thus, we argue in favor of the reconsolidation hypothesis, assuming our intervention had successfully interfered with the reconsolidation process. This points towards future treatment options that interfere with an addiction memory.
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Affiliation(s)
| | - Derik Hermann
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty MannheimHeidelberg University Germany
| | | | - Holger Hill
- Institut für Sport und Sportwissenschaft (IfSS)Karlsruher Institut für Technologie Germany
| | - Iris Reinhard
- Department of Biostatistics, Central Institute of Mental Health, Medical Faculty MannheimHeidelberg University Germany
| | - Sabine Vollstädt‐Klein
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty MannheimHeidelberg University Germany
| | - Peter Kirsch
- Department of Clinical Psychology, Central Institute of Mental Health, Medical Faculty MannheimHeidelberg University Germany
| | - Falk Kiefer
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty MannheimHeidelberg University Germany
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18
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Silent synapses dictate cocaine memory destabilization and reconsolidation. Nat Neurosci 2019; 23:32-46. [PMID: 31792465 PMCID: PMC6930359 DOI: 10.1038/s41593-019-0537-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 10/10/2019] [Indexed: 02/04/2023]
Abstract
Cocaine-associated memories are persistent, but, upon retrieval, become temporarily destabilized and vulnerable to disruptions, followed by reconsolidation. To explore the synaptic underpinnings for these memory dynamics, we studied AMPA receptor (AMPAR)-silent excitatory synapses, which are generated in the nucleus accumbens by cocaine self-administration, and subsequently mature after prolonged withdrawal by recruiting AMPARs, echoing acquisition and consolidation of cocaine memories. We show that, upon memory retrieval after prolonged withdrawal, the matured silent synapses become AMPAR-silent again, followed by re-maturation ~6 hr later, defining the onset and termination of a destabilization window of cocaine memories. These synaptic dynamics are controlled by Rac1, with decreased and increased Rac1 activities opening and closing, respectively, the silent synapse-mediated destabilization window. Preventing silent synapse re-maturation within the destabilization window decreases cue-induced cocaine seeking. Thus, cocaine-generated silent synapses constitute a discrete synaptic ensemble dictating the dynamics of cocaine-associated memories and can be targeted for memory disruption.
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19
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Brunet A, Ayrolles A, Gambotti L, Maatoug R, Estellat C, Descamps M, Girault N, Kalalou K, Abgrall G, Ducrocq F, Vaiva G, Jaafari N, Krebs MO, Castaigne E, Hanafy I, Benoit M, Mouchabac S, Cabié MC, Guillin O, Hodeib F, Durand-Zaleski I, Millet B. Paris MEM: a study protocol for an effectiveness and efficiency trial on the treatment of traumatic stress in France after the 2015-16 terrorist attacks. BMC Psychiatry 2019; 19:351. [PMID: 31703570 PMCID: PMC6842179 DOI: 10.1186/s12888-019-2283-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 09/11/2019] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND The Paris and Nice terrorist attacks affected a thousand of trauma victims and first-line responders. Because there were concerns that this might represent the first of several attacks, there was a need to quickly enhance the local capacities to treat a large number of individuals suffering from trauma-related disorders. Since Reconsolidation Therapy (RT) is brief, relatively easy to learn, well tolerated and effective, it appeared as the ideal first-line treatment to teach to clinicians in this context. METHODS This study protocol is a two-arm non-randomized, multicenter controlled trial, comparing RT to treatment as usual for the treatment of trauma-related disorders. RT consists of actively recalling one's traumatic event under the influence of the ß-blocker propranolol, once a week, for 10-25 min with a therapist, over 6 consecutive weeks. This protocol evaluates the feasibility, effectiveness, and cost-utility of implementing RT as part of a large multi-center (N = 400) pragmatic trial with a one-year follow-up. DISCUSSION Paris MEM is the largest trial to date assessing the efficiency of RT in the aftermath of a large-scale man-made disaster. RT could possibly reinforce the therapeutic arsenal for the treatment of patients suffering from trauma-related disorders, not only for communities in western countries but also worldwide for terror- or disaster-stricken communities. TRIAL REGISTRATION Clinical Trials (ClinicalTrials.gov). June 3, 2016. NCT02789982.
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Affiliation(s)
- A. Brunet
- Département de Psychiatrie adulte, boulevard de l’Hôpital, 75013 Paris, France
- Department of Psychiatry, McGill University, Montréal, Canada
| | - A. Ayrolles
- Département de Psychiatrie adulte, boulevard de l’Hôpital, 75013 Paris, France
- Département de Psychiatrie adulte, Hôpital Universitaire de la Pitié Salpêtrière, Assistance Publique - Hôpitaux de Paris, boulevard de l’Hôpital, 75013 Paris, France
| | - L. Gambotti
- Département de Psychiatrie adulte, Hôpital Universitaire de la Pitié Salpêtrière, Assistance Publique - Hôpitaux de Paris, boulevard de l’Hôpital, 75013 Paris, France
| | - R. Maatoug
- Département de Psychiatrie adulte, boulevard de l’Hôpital, 75013 Paris, France
- Département de Psychiatrie adulte, Hôpital Universitaire de la Pitié Salpêtrière, Assistance Publique - Hôpitaux de Paris, boulevard de l’Hôpital, 75013 Paris, France
| | - C. Estellat
- Département de Psychiatrie adulte, Hôpital Universitaire de la Pitié Salpêtrière, Assistance Publique - Hôpitaux de Paris, boulevard de l’Hôpital, 75013 Paris, France
| | - M. Descamps
- Département de Psychiatrie adulte, boulevard de l’Hôpital, 75013 Paris, France
- Department of Psychiatry, McGill University, Montréal, Canada
| | - N. Girault
- Département de Psychiatrie adulte, boulevard de l’Hôpital, 75013 Paris, France
- Département de Psychiatrie adulte, Hôpital Universitaire de la Pitié Salpêtrière, Assistance Publique - Hôpitaux de Paris, boulevard de l’Hôpital, 75013 Paris, France
| | - K. Kalalou
- Unité de recherche clinique, EPS de Ville Evrard, G03, 5 rue du Dr Delafontaine, 93200 Saint-Denis, France
| | - G. Abgrall
- Assistance Publique - Hôpitaux de Paris -, Hôtel-Dieu, 75004 Paris, France
| | - F. Ducrocq
- France CHRU de Lille, Pôle de Psychiatrie Médecine Légale et Santé en milieu Pénitentiaire, SCA-Lab CNRS UMR 9193, 59037 cedex Lille, France
| | - G. Vaiva
- France CHRU de Lille, Pôle de Psychiatrie Médecine Légale et Santé en milieu Pénitentiaire, SCA-Lab CNRS UMR 9193, 59037 cedex Lille, France
| | - N. Jaafari
- CIC INSERM U802, CHU de Poitiers, Unité de recherche clinique intersectorielle en psychiatrie du Centre Hospitalier Henri Laborit, 86022 Poitiers, France
| | - M. O. Krebs
- Centre Hospitalier Sainte Anne, Service Hospitalo-Universitaire, Faculté de Médecine Paris Descartes, Université Paris Descartes, Paris, France
| | - E. Castaigne
- Service de Psychiatrie, CHU de Bicêtre, HUPS, APHP 78, rue du général Leclerc, 94270 Le Kremlin Bicêtre, France
| | - I. Hanafy
- CH Marne La Vallée, Service de Médecine Légale, 77420 Marne-La-Vallée, France
| | - M. Benoit
- Clinical Neuroscience Department Hospital Pasteur 1, France University of Côte d’Azur, 30 avenue de la voie, 06002 NICE cedex 1 Romaine, France
| | - S. Mouchabac
- Département de psychiatrie et de psychologie médicale de l’adulte, Hôpital universitaire Saint-Antoine, Université Pierre et Marie Curie, Paris VI - AP-HP, 184 rue du Faubourg-Saint-Antoine, 75012 Paris, France
| | - M. C. Cabié
- Pôle Paris 11 Les Hôpitaux de Saint Maurice, 12-14 rue Val d’Osne, 94410 St Maurice, France
| | - O. Guillin
- Service Hospitalo-universitaire, CH du Rouvray, 4 rue Paul Eluard, 76300 Sotteville-lès-Rouen, France
- unité Inserm U1079 Faculté de médecine et de pharmacie, 76000 Rouen, France
| | - F. Hodeib
- Département de Psychiatrie adulte, boulevard de l’Hôpital, 75013 Paris, France
- Département de Psychiatrie adulte, Hôpital Universitaire de la Pitié Salpêtrière, Assistance Publique - Hôpitaux de Paris, boulevard de l’Hôpital, 75013 Paris, France
| | - I. Durand-Zaleski
- ECEVE, UMR 1123 URCEco Ile de France Hôtel Dieu, 1 place du Parvis de Notre Dame, 75004 Paris, France
| | - B. Millet
- Département de Psychiatrie adulte, boulevard de l’Hôpital, 75013 Paris, France
- Département de Psychiatrie adulte, Hôpital Universitaire de la Pitié Salpêtrière, Assistance Publique - Hôpitaux de Paris, boulevard de l’Hôpital, 75013 Paris, France
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20
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Counterconditioning following memory retrieval diminishes the reinstatement of appetitive memories in humans. Sci Rep 2019; 9:9213. [PMID: 31239475 PMCID: PMC6592881 DOI: 10.1038/s41598-019-45492-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 06/04/2019] [Indexed: 11/08/2022] Open
Abstract
Appetitive memories play a crucial role in learning and behavior, but under certain circumstances, such memories become maladaptive and play a vital role in addiction and other psychopathologies. Recent scientific research has demonstrated that memories can be modified following their reactivation through memory retrieval in a process termed memory reconsolidation. Several nonpharmacological behavioral manipulations yielded mixed results in their capacity to alter maladaptive memories in humans. Here, we aimed to translate the promising findings observed in rodents to humans. We constructed a novel three-day procedure using aversive counterconditioning to alter appetitive memories after short memory retrieval. On the first day, we used appetitive conditioning to form appetitive memories. On the second day, we retrieved these appetitive memories in one group (Retrieval group) but not in a second group. Subsequently, all participants underwent counterconditioning. On the third day, we attempted to reinstate the appetitive memories from day one. We observed a significant reduction in the reinstatement of the original appetitive memory when counterconditioning was induced following memory retrieval. Here, we provide a novel human paradigm that models several memory processes and demonstrate memory attenuation when counterconditioned after its retrieval. This paradigm can be used to study complex appetitive memory dynamics, e.g., memory reconsolidation and its underlying brain mechanisms.
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Abstract
Propranolol is a beta-adrenergic receptor antagonist that was developed by the British scientist Sir James Black primarily for the treatment of angina pectoris, more than 50 years ago. It was not long before several other cardiovascular as well as noncardiovascular therapeutic uses of propranolol were discovered. Propranolol soon became a powerful tool for physicians in the treatment of numerous conditions such as hypertension, cardiac arrhythmias, myocardial infarction, migraine, portal hypertension, anxiety, essential tremors, hyperthyroidism, and pheochromocytoma. Owing to its action at multiple receptor sites, propranolol exerts several central and peripheral effects and is therefore useful in various conditions. Right from reduction in postmyocardial mortality to control of anxiety in performers, propranolol plays an important role in a plethora of medical conditions. Interestingly, even today, newer indications of this age-old drug are being discovered. Moreover, propranolol treatment has been found to be cost-effective when compared to other corresponding treatment options for individual indications. In this article, we attempt to recount the journey of propranolol right from its inception to the present day.
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Affiliation(s)
- A. V. Srinivasan
- Former Professor of Neurology and Head - Institute of Neurology, Madras Medical College, Chennai, Emeritus Professor - The Tamil Nadu Dr. M.G.R. Medical University, Adjunct Professor - Indian Institute of Technology (IIT - Chennai), Tamil Nadu, India
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Cogan ES, Shapses MA, Robinson TE, Tronson NC. Disrupting reconsolidation: memory erasure or blunting of emotional/motivational value? Neuropsychopharmacology 2019; 44:399-407. [PMID: 29786067 PMCID: PMC6300536 DOI: 10.1038/s41386-018-0082-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/23/2018] [Accepted: 04/24/2018] [Indexed: 11/09/2022]
Abstract
When memories are retrieved they become labile, and subject to alteration by a process known as reconsolidation. Disruption of memory reconsolidation decreases the performance of learned responses, which is often attributed to erasure of the memory; in the case of Pavlovian learning, to a loss of the association between a conditioned stimulus (CS) and unconditioned stimulus (US). However, an alternative interpretation is that disrupting reconsolidation does not erase memories, but blunts their emotional/motivational impact. It is difficult to parse the predictive vs. emotional/motivational value of CSs in non-human animals, but studies on variation in the form of conditioned responses (CRs) in a Pavlovian conditioned approach task suggest a way to do this. In this task a lever-CS paired with a food reward (US) acquires predictive value in all rats, but is attributed with emotional/motivational value to a greater extent in some rats (sign-trackers) than others (goal-trackers). We report that the post-retrieval administration of propranolol selectively attenuates a sign-tracking CR, and the associated neural activation of brain "motive circuits", while having no effect on conditioned orienting behavior in sign-trackers, or on goal-tracking CRs evoked by either a lever-CS or a tone-CS. We conclude that the disruption of reconsolidation by post-retrieval propranolol degrades the emotional/motivational impact of the CS, required for sign-tracking, but leaves the CS-US association intact. The possibility that post-retrieval interventions can reduce the emotional/motivational aspects of memories, without actually erasing them, has important implications for treating maladaptive memories that contribute to some psychiatric disorders.
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Affiliation(s)
- Elizabeth S. Cogan
- 0000000086837370grid.214458.eBiopsychology Program, Department of Psychology, University of Michigan, 530 Church Street, Ann Arbor, MI 48109 USA
| | - Mark A. Shapses
- 0000000086837370grid.214458.eBiopsychology Program, Department of Psychology, University of Michigan, 530 Church Street, Ann Arbor, MI 48109 USA
| | - Terry E. Robinson
- 0000000086837370grid.214458.eBiopsychology Program, Department of Psychology, University of Michigan, 530 Church Street, Ann Arbor, MI 48109 USA
| | - Natalie C. Tronson
- 0000000086837370grid.214458.eBiopsychology Program, Department of Psychology, University of Michigan, 530 Church Street, Ann Arbor, MI 48109 USA
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Monfils MH, Holmes EA. Memory boundaries: opening a window inspired by reconsolidation to treat anxiety, trauma-related, and addiction disorders. Lancet Psychiatry 2018; 5:1032-1042. [PMID: 30385214 DOI: 10.1016/s2215-0366(18)30270-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 07/06/2018] [Accepted: 07/09/2018] [Indexed: 01/12/2023]
Abstract
Pioneering research over the past two decades has shown that memories are far more malleable than we once thought, thereby highlighting the potential for new clinical avenues for treatment of psychopathology. We first briefly review the historical foundation of memory reconsolidation-a concept that refers to hypothetical processes that occur when a memory is retrieved and restored. Then, we provide an overview of the basic research on memory reconsolidation that has been done with humans and other animals, focusing on models of fear, anxiety-related disorders, and addiction, from the perspective that they all involve disorders of memory. This basic research has fuelled early stage developments of novel treatment techniques. More specifically, we consider behavioural interventions inspired by reconsolidation updating, namely retrieval-extinction techniques. We discuss the set of principles that would be needed for memory modifications within a putative reconsolidation time window, and review research that employs reconsolidation-based strategies with clinical populations. We conclude by highlighting current pitfalls and controversies surrounding the use of reconsolidation-based approaches, but end on an optimistic note for clinical research going forward. Despite the challenges, we believe that drawing on ideas from psychological science can help open up treatment innovation.
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Affiliation(s)
- Marie H Monfils
- Department of Psychology, Institute for Mental Health Research, University of Texas at Austin, Austin, TX, USA.
| | - Emily A Holmes
- Division of Psychology, Department for Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Silva MB, Soares AB. Reconsolidation of human motor memory: From boundary conditions to behavioral interventions-How far are we from clinical applications? Behav Brain Res 2018; 353:83-90. [PMID: 29983391 DOI: 10.1016/j.bbr.2018.07.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 07/02/2018] [Accepted: 07/02/2018] [Indexed: 01/12/2023]
Abstract
The memory reconsolidation hypothesis states that a previously consolidated and stable memory can return to a temporary labile state after retrieved, requiring a new stabilization process. During the labile period, the memory trace is vulnerable to modification, which provides a potential therapeutic opportunity to weaken, updated or strengthen that memory. As such, reconsolidation has been the subject of numerous studies in different domains of human memory that seek strategies to treat post-traumatic disorders and erase or modify pathological memories. A few studies have also investigated the impairment effects of behavioral interferences on motor memory. However, very little has been researched and written about the possibility of using reconsolidation to enhance motor skill learning. Here, we present a critical review of the literature and trace possible applications for human motor memory reconsolidation. We discuss the boundary conditions and the mechanisms to trigger the reconsolidation process, as well as the effects of behavioral interventions in modifying the performance of motor skills.
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Affiliation(s)
- Maristella Borges Silva
- Biomedical Engineering Laboratory, Faculty of Electrical Engineering, Federal University of Uberlandia, Brazil
| | - Alcimar Barbosa Soares
- Biomedical Engineering Laboratory, Faculty of Electrical Engineering, Federal University of Uberlandia, Brazil.
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Exton-McGuinness MTJ, Milton AL. Reconsolidation blockade for the treatment of addiction: challenges, new targets, and opportunities. Learn Mem 2018; 25:492-500. [PMID: 30115771 PMCID: PMC6097762 DOI: 10.1101/lm.046771.117] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 05/21/2018] [Indexed: 11/25/2022]
Abstract
Addiction is a chronic, relapsing disorder. The progression to pathological drug-seeking is thought to be driven by maladaptive learning processes which store and maintain associative memory, linking drug highs with cues and actions in the environment. These memories can encode Pavlovian associations which link predictive stimuli (e.g., people, places, and paraphernalia) with a hedonic drug high, as well as instrumental learning about the actions required to obtain drug-associated incentives. Learned memories are not permanent however, and much recent interest has been generated in exploiting the process of reconsolidation to erase or significantly weaken maladaptive memories to treat several mental health disorders, including addictions. Normally reconsolidation serves to update and maintain the adaptive relevance of memories, however administration of amnestic agents within the critical "reconsolidation window" can weaken or even erase maladaptive memories. Here we discuss recent advances in the field, including ongoing efforts to translate preclinical reconsolidation research in animal models into clinical practice.
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Affiliation(s)
| | - Amy L Milton
- Department of Psychology, University of Cambridge, Downing Site, Cambridge CB2 3EB, United Kingdom
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Liu JF, Tian J, Li JX. Modulating reconsolidation and extinction to regulate drug reward memory. Eur J Neurosci 2018; 50:2503-2512. [PMID: 30113098 DOI: 10.1111/ejn.14072] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 06/20/2018] [Accepted: 06/28/2018] [Indexed: 01/11/2023]
Abstract
Drug addiction is an aberrant memory that shares the same memory processes as other memories. Brief exposure to drug-associated cues could result in reconsolidation, a hypothetical process during which original memory could be updated. In contrast, longer exposure times to drug-associated cues could trigger extinction, a process that decreases the conditioned responding. In this review, we discuss the pharmacological and non-pharmacological manipulations on the reconsolidation and extinction that could be used to interfere with drug reward memories. Pharmacological agents such as β-adrenergic receptor antagonist propranolol can interfere with reconsolidation to disrupt drug reward memory. Pharmacological agents such as the NMDA receptor glycine site agonists d-cycloserine and d-serine can facilitate extinction and then attenuate the expression of drug reward memory. Besides pharmacological interventions, drug-free behavioral approaches by utilizing the reconsolidation and extinction, such as 'post-retrieval extinction' and 'UCS-retrieval extinction', are also effective to erase or inhibit the recall of drug reward memory. Taken together, pharmacological modulation and non-pharmacological modulation of reconsolidation and extinction are promising approaches to regulate drug reward memory and prevent relapse.
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Affiliation(s)
- Jian-Feng Liu
- Department of Pharmacology and Toxicology, University at Buffalo, The State University of New York, 955 Main Street, Buffalo, NY, 14203, USA
| | - Jingwei Tian
- Department of Pharmacology and Toxicology, University at Buffalo, The State University of New York, 955 Main Street, Buffalo, NY, 14203, USA.,School of Pharmacy, Yantai University, Yantai, Shandong Province, China
| | - Jun-Xu Li
- Department of Pharmacology and Toxicology, University at Buffalo, The State University of New York, 955 Main Street, Buffalo, NY, 14203, USA
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Kaag AM, Goudriaan AE, De Vries TJ, Pattij T, Wiers RW. A high working memory load prior to memory retrieval reduces craving in non-treatment seeking problem drinkers. Psychopharmacology (Berl) 2018; 235:695-708. [PMID: 29181814 PMCID: PMC5847068 DOI: 10.1007/s00213-017-4785-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 11/07/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND Reconsolidation-based interventions have been suggested to be a promising treatment strategy for substance use disorders. In this study, we aimed to investigate the effectiveness of a working memory intervention to interfere with the reconsolidation of alcohol-related memories in a sample of non-treatment seeking heavy drinkers. METHODS Participants were randomized to one of the two conditions that underwent a 3-day intervention: in the experimental condition, a 30-min working memory training was performed immediately after a 15-min memory retrieval session (i.e., within the memory reconsolidation time-window), whereas in the control condition, the working memory training was performed prior to a memory retrieval session. RESULTS In contrast to our original hypothesis, a high working memory load after memory retrieval did not interfere with the reconsolidation of those memories while a high working memory load prior to memory retrieval (the original control condition) strongly reduced retrieval-induced craving and craving for alcohol at follow-up. CONCLUSION Whereas the neurocognitive mechanism behind this effect needs to be further investigated, the current findings suggest that, if replicated, working memory training prior to addiction-related memory retrieval has the potential to become an effective (adjunctive) intervention in the treatment of substance use disorders.
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Affiliation(s)
- Anne Marije Kaag
- Addiction Development and Psychopathology (ADAPT) Lab, Department of Developmental Psychology, University of Amsterdam, Amsterdam, The Netherlands.
- Amsterdam Brain and Cognition, University of Amsterdam, Amsterdam, The Netherlands.
| | - Anna E Goudriaan
- Amsterdam Brain and Cognition, University of Amsterdam, Amsterdam, The Netherlands
- Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
- Arkin Mental Health Care & Amsterdam Institute for Addiction Research, Amsterdam, The Netherlands
| | - Taco J De Vries
- Department of Anatomy and Neurosciences, Amsterdam Neuroscience, VU University Medical Center, Amsterdam, The Netherlands
| | - Tommy Pattij
- Department of Anatomy and Neurosciences, Amsterdam Neuroscience, VU University Medical Center, Amsterdam, The Netherlands
| | - Reinout W Wiers
- Addiction Development and Psychopathology (ADAPT) Lab, Department of Developmental Psychology, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Brain and Cognition, University of Amsterdam, Amsterdam, The Netherlands
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Selective Inhibition of Amygdala Neuronal Ensembles Encoding Nicotine-Associated Memories Inhibits Nicotine Preference and Relapse. Biol Psychiatry 2017; 82. [PMID: 28648649 PMCID: PMC6192421 DOI: 10.1016/j.biopsych.2017.04.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Nicotine craving and relapse often occurs after reactivation of nicotine reward memories. We recently developed a memory retrieval-reconsolidation interference procedure in which reactivating nicotine reward memories by acute exposure to nicotine (the unconditioned stimulus [UCS]) and then pharmacologically interfering with memory reconsolidation decreased relapse to nicotine seeking in rats and nicotine craving in smokers. Here, we investigated underlying mechanisms. METHODS In the first series of experiments, we trained rats for nicotine-induced conditioned place preference (CPP) or nicotine self-administration and ventricularly microinjected them with the protein synthesis inhibitor anisomycin immediately after UCS-induced memory retrieval. In the second series of experiments, we used tyramide-amplified immunohistochemistry-fluorescence in situ hybridization to examine neural ensembles in the basolateral amygdala (BLA) reactivated by nicotine conditioned stimulus- or UCS-induced memory retrieval. We then used the Daun02 chemogenetic inactivation procedure to selectively inhibit the nicotine UCS-reactivated BLA neuronal ensembles. RESULTS Ventricular injections of the anisomycin immediately after nicotine UCS memory retrieval inhibited subsequent nicotine CPP and relapse to operant nicotine seeking after short or prolonged abstinence. More important, within BLA, distinct neuronal ensembles encoded pavlovian CPP and operant self-administration reward memories and nicotine (the UCS) injections in the home cage reactivated both neuronal ensembles. Daun02 chemogenetic inactivation of the nicotine-reactivated ensembles inhibited both nicotine CPP and relapse to nicotine seeking. CONCLUSIONS Results demonstrate that the nicotine UCS-induced memory retrieval manipulation reactivates multiple nicotine reward memories that are encoded by distinct BLA neuronal ensembles that play a role in nicotine preference and relapse.
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Fernández RS, Pedreira ME, Boccia MM. Does reconsolidation occur in natural settings? Memory reconsolidation and anxiety disorders. Clin Psychol Rev 2017; 57:45-58. [DOI: 10.1016/j.cpr.2017.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 07/28/2017] [Accepted: 08/07/2017] [Indexed: 12/11/2022]
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Treanor M, Brown LA, Rissman J, Craske MG. Can Memories of Traumatic Experiences or Addiction Be Erased or Modified? A Critical Review of Research on the Disruption of Memory Reconsolidation and Its Applications. PERSPECTIVES ON PSYCHOLOGICAL SCIENCE 2017; 12:290-305. [PMID: 28346121 DOI: 10.1177/1745691616664725] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Recent research suggests that the mere act of retrieving a memory can temporarily make that memory vulnerable to disruption. This process of "reconsolidation" will typically restabilize the neural representation of the memory and foster its long-term storage. However, the process of reconsolidating the memory takes time to complete, and during this limited time window, the original memory may be modified either by the presentation of new information or with pharmacological agents. Such findings have prompted rising interest in using disruption during reconsolidation as a clinical intervention for anxiety, posttraumatic stress, and substance use disorders. However, "boundary conditions" on memory reconsolidation may pose significant obstacles to clinical translation. The aim of this article is to critically examine the nature of these boundary conditions, their neurobiological substrates, and the potential effect they may have on disruption of reconsolidation as a clinical intervention. These boundary conditions also highlight potential constraints on the reconsolidation phenomenon and suggest a limited role for memory updating consistent with evolutionary accounts of associative learning for threat and reward. We conclude with suggestions for future research needed to elucidate the precise conditions under which reconsolidation disruption may be clinically useful.
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Stringfield SJ, Higginbotham JA, Wang R, Berger AL, McLaughlin RJ, Fuchs RA. Role of glucocorticoid receptor-mediated mechanisms in cocaine memory enhancement. Neuropharmacology 2017; 123:349-358. [PMID: 28549664 PMCID: PMC5526334 DOI: 10.1016/j.neuropharm.2017.05.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 04/12/2017] [Accepted: 05/20/2017] [Indexed: 12/18/2022]
Abstract
The basolateral amygdala (BLA) is a critical site for the reconsolidation of labile contextual cocaine memories following retrieval-induced reactivation/destabilization. Here, we examined whether glucocorticoid receptors (GR), which are abundant in the BLA, mediate this phenomenon. Rats were trained to lever press for cocaine reinforcement in a distinct environmental context, followed by extinction training in a different context. Rats were then briefly exposed to the cocaine-paired context (to elicit memory reactivation and reconsolidation) or their home cages (no reactivation control). Exposure to the cocaine-paired context elicited greater serum corticosterone concentrations than home cage stay. Interestingly, the GR antagonist, mifepristone (3-10 ng/hemisphere), administered into the BLA after memory reactivation produced a further, dose-dependent increase in serum corticosterone concentrations during the putative time of cocaine-memory reconsolidation but produced an inverted U-shaped dose-effect curve on subsequent cocaine-seeking behavior 72 h later. This effect was anatomically selective, dependent on memory reactivation (i.e., not observed after home cage exposure), and did not reflect protracted hyperactivity. However, the effect was also observed when mifepristone was administered after novelty stress that mimics drug context-induced hypothalamic-pituitary-adrenal (HPA) axis activation without explicit memory reactivation. Together, these findings suggest that, similar to explicit memory retrieval, a stressful event is sufficient to destabilize cocaine memories and permit their manipulation. Furthermore, BLA GR stimulation exerts inhibitory feedback upon HPA axis activation and thus suppresses cocaine-memory reconsolidation.
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Affiliation(s)
- S J Stringfield
- Neurobiology Curriculum, University of North Carolina, Chapel Hill, NC, USA
| | - J A Higginbotham
- Washington State University, College of Veterinary Medicine, Department of Integrative Physiology and Neuroscience, Pullman, WA, USA
| | - R Wang
- Washington State University, College of Veterinary Medicine, Department of Integrative Physiology and Neuroscience, Pullman, WA, USA
| | - A L Berger
- Washington State University, College of Veterinary Medicine, Department of Integrative Physiology and Neuroscience, Pullman, WA, USA
| | - R J McLaughlin
- Washington State University, College of Veterinary Medicine, Department of Integrative Physiology and Neuroscience, Pullman, WA, USA
| | - R A Fuchs
- Washington State University, College of Veterinary Medicine, Department of Integrative Physiology and Neuroscience, Pullman, WA, USA.
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Garcinol Blocks the Reconsolidation of Multiple Cocaine-Paired Cues after a Single Cocaine-Reactivation Session. Neuropsychopharmacology 2017; 42:1884-1892. [PMID: 28169286 PMCID: PMC5520782 DOI: 10.1038/npp.2017.27] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 01/28/2017] [Accepted: 01/30/2017] [Indexed: 12/15/2022]
Abstract
Manipulations of memory reconsolidation can interfere with the ability of a drug-paired cue to drive drug-seeking behavior. However, the typical reconsolidation paradigm that reactivates the memory through the presentation of the cue (conditioned stimulus (CS)) only interferes with the memory of the reactivated CS while leaving other drug-paired CSs intact and able to continue driving drug-seeking behavior. Here, we used a novel unconditioned-stimulus (US) reactivation paradigm to interfere with the ability of multiple cues to drive drug-seeking behavior after just one reactivation and treatment session. Rats were trained to self-administer cocaine, during which time each active lever press resulted in an i.v. cocaine infusion paired with one of two cues that alternated within each session. The drug memory was later reactivated with either i.v. or i.p. cocaine presentation in the absence of any cue. The histone acetyltransferase (HAT) inhibitor garcinol or vehicle was injected following US reactivation to impair reconsolidation. Rats were later tested on cue-induced reinstatement to both cues. Garcinol administered after either i.v. or i.p. cocaine reactivation significantly decreased cue-induced reinstatement to both cues, indicative of reconsolidation impairment. In addition, garcinol administered in the absence of reconsolidation or at a 6 h delay when the memory should be restabilized had no effect on reinstatement, further suggesting that garcinol's effects on reinstatement are through reconsolidation-based mechanisms. Our results demonstrate that a US-reactivation paradigm may be preferable to traditional CS-reactivation paradigms for treating disorders that involve multiple CS-US associations and support investigations of garcinol as a therapeutic pharmacological agent.
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Possible involvement of ACSS2 gene in alcoholism. J Neural Transm (Vienna) 2017; 124:1151-1158. [PMID: 28550509 DOI: 10.1007/s00702-017-1737-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 05/20/2017] [Indexed: 02/01/2023]
Abstract
Alcoholism is a psychiatric disorder that composes one of the principal causes of health disabilities in the world population. Furthermore, the available pharmacotherapy is limited. Therefore, this research was carried out to better understand the basis of the underlying neurobiological processes of this disorder and to discover potential therapeutic targets. Real-time PCR analysis was performed in the amygdala nuclei region of the brain of mice exposed to a chronic three-bottle free-choice model (water, 5 and 10% v/v ethanol). Based on individual ethanol intake, the mice were classified into three groups: "compulsive-like" (i.e., ethanol intake not affected by quinine adulteration), "ethanol-preferring" and "ethanol non-preferring". A fourth group had access only to tap water (control group). The candidate gene ACSS2 was genotyped in human alcoholics by real-time polymerase chain reaction using the markers rs6088638 and rs7266550. Seven genes were picked out (Acss2, Acss3, Acat1, Acsl1, Acaa2, Hadh, and Hadhb) and the mRNA level of the Acss2 gene was increased only in the "compulsive-like" group (p = 0.004). The allele frequency of rs6088638 for the gene ACSS2 was higher in the Alcoholic human group (p = 0.03), although sample size was very small. The gene ACSS2 is associated with alcoholism, suggesting that biochemical pathways where it participates may have a role in the biological mechanisms susceptible to the ethanol effects.
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Beckers T, Kindt M. Memory Reconsolidation Interference as an Emerging Treatment for Emotional Disorders: Strengths, Limitations, Challenges, and Opportunities. Annu Rev Clin Psychol 2017; 13:99-121. [PMID: 28375725 DOI: 10.1146/annurev-clinpsy-032816-045209] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Experimental research on emotional memory reconsolidation interference, or the induction of amnesia for previously established emotional memory, has a long tradition, but the potential of that research for the development of novel interventions to treat psychological disorders has been recognized only recently. Here we provide an overview of basic research and clinical studies on emotional memory reconsolidation interference. We point out specific advantages of interventions based on memory reconsolidation interference over traditional treatment for emotional disorders. We also explain how findings from basic research suggest limitations and challenges to clinical translation that may help to understand why clinical trials have met with mixed success so far and how their success can be increased. In closing, we preview new intervention approaches beyond the induction of amnesia that the phenomenon of memory reconsolidation may afford for alleviating the burden imposed by emotional memories and comment on theoretical controversies regarding the nature of memory reconsolidation.
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Affiliation(s)
- Tom Beckers
- Department of Psychology, KU Leuven, Leuven, Belgium 3000;
| | - Merel Kindt
- Department of Clinical Psychology, University of Amsterdam, Amsterdam, Netherlands 1018WT;
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Xue YX, Deng JH, Chen YY, Zhang LB, Wu P, Huang GD, Luo YX, Bao YP, Wang YM, Shaham Y, Shi J, Lu L. Effect of Selective Inhibition of Reactivated Nicotine-Associated Memories With Propranolol on Nicotine Craving. JAMA Psychiatry 2017; 74:224-232. [PMID: 28146250 PMCID: PMC6201291 DOI: 10.1001/jamapsychiatry.2016.3907] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
IMPORTANCE A relapse into nicotine addiction during abstinence often occurs after the reactivation of nicotine reward memories, either by acute exposure to nicotine (a smoking episode) or by smoking-associated conditioned stimuli (CS). Preclinical studies suggest that drug reward memories can undergo memory reconsolidation after being reactivated, during which they can be weakened or erased by pharmacological or behavioral manipulations. However, translational clinical studies using CS-induced memory retrieval-reconsolidation procedures to decrease drug craving reported inconsistent results. OBJECTIVE To develop and test an unconditioned stimulus (UCS)-induced retrieval-reconsolidation procedure to decrease nicotine craving among people who smoke. DESIGN, SETTING, AND PARTICIPANTS A translational rat study and human study in an academic outpatient medical center among 96 male smokers (aged 18- 45 years) to determine the association of propranolol administration within the time window of memory reconsolidation (after retrieval of the nicotine-associated memories by nicotine UCS exposure) with relapse to nicotine-conditioned place preference (CPP) and operant nicotine seeking in rats, and measures of preference to nicotine-associated CS and nicotine craving among people who smoke. INTERVENTION The study rats were injected noncontingently with the UCS (nicotine 0.15 mg/kg, subcutaneous) in their home cage, and the human study participants administered a dose of propranolol (40 mg, per os; Zhongnuo Pharma). MAIN OUTCOMES AND MEASURES Nicotine CPP and operant nicotine seeking in rats, and preference and craving ratings for newly learned and preexisting real-life nicotine-associated CS among people who smoke. RESULTS Sixty-nine male smokers completed the experiment and were included for statistical analysis: 24 in the group that received placebo plus 1 hour plus UCS, 23 who received propranolol plus 1 hour plus UCS, and 22 who received UCS plus 6 hours plus propranolol. In rat relapse models, propranolol injections administered immediately after nicotine UCS-induced memory retrieval inhibited subsequent nicotine CPP and operant nicotine seeking after short (CPP, d = 1.72, 95% CI, 0.63-2.77; operant seeking, d = 1.61, 95% CI, 0.59-2.60) or prolonged abstinence (CPP, d = 1.46, 95% CI, 0.42-2.47; operant seeking: d = 1.69, 95% CI, 0.66-2.69), as well as nicotine priming-induced reinstatement of nicotine CPP (d = 1.28, 95% CI, 0.27-2.26) and operant nicotine seeking (d = 1.61, 95% CI, 0.59-2.60) after extinction. Among the smokers, oral propranolol administered prior to nicotine UCS-induced memory retrieval decreased subsequent nicotine preference induced by newly learned nicotine CS (CS1, Cohen d = 0.61, 95% CI, 0.02-1.19 and CS2, d = 0.69, 95% CI, 0.10-1.28, respectively), preexisting nicotine CS (d = 0.57, 95% CI, -0.02 to 1.15), and nicotine priming (CS1, d = 0.82, 95% CI, 0.22-1.41 and CS2, d = 0.78, 95% CI, 0.18-1.37, respectively; preexisting nicotine CS, d = 0.92, 95% CI, 0.31-1.52), as well as nicotine craving induced by the preexisting nicotine CS (d = 0.64, 95% CI, 0.05-1.22), and nicotine priming (d = 1.15, 95% CI, 0.52-1.76). CONCLUSIONS AND RELEVANCE In rat-to-human translational study, a novel UCS-induced memory retrieval-reconsolidation interference procedure inhibited nicotine craving induced by exposure to diverse nicotine-associated CS and nicotine itself. This procedure should be studied further in clinical trials.
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Affiliation(s)
- Yan-Xue Xue
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Jia-Hui Deng
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China2Peking University Sixth Hospital (Institute of Mental Health), Peking University, Beijing, China
| | - Ya-Yun Chen
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China2Peking University Sixth Hospital (Institute of Mental Health), Peking University, Beijing, China
| | - Li-Bo Zhang
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Ping Wu
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Geng-Di Huang
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Yi-Xiao Luo
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China2Peking University Sixth Hospital (Institute of Mental Health), Peking University, Beijing, China
| | - Yan-Ping Bao
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Yu-Mei Wang
- Peking University Sixth Hospital (Institute of Mental Health), Peking University, Beijing, China
| | - Yavin Shaham
- Intramural Research Program, National Institute on Drug Abuse, National Institutes of Health, Baltimore, Maryland
| | - Jie Shi
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
| | - Lin Lu
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China2Peking University Sixth Hospital (Institute of Mental Health), Peking University, Beijing, China3National Clinical Research Center for Mental Disorders & Key Laboratory of Mental Health, Ministry of Health, Peking University, Beijing, China5Peking-Tsinghua Center for Life Sciences and PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China
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36
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Thompson A, Lipp OV. Extinction during reconsolidation eliminates recovery of fear conditioned to fear-irrelevant and fear-relevant stimuli. Behav Res Ther 2017; 92:1-10. [PMID: 28171767 DOI: 10.1016/j.brat.2017.01.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 01/25/2017] [Accepted: 01/30/2017] [Indexed: 12/11/2022]
Abstract
Extant literature suggests that extinction training delivered during the memory reconsolidation period is superior to traditional extinction training in the reduction of fear recovery, as it targets the original fear memory trace. At present it is debated whether different types of fear memories are differentially sensitive to behavioral manipulations of reconsolidation. Here, we examined post-reconsolidation recovery of fear as a function of conditioned stimulus (CS) fear-relevance, using the unconditioned stimulus (US) to reactivate and destabilize conditioned fear memories. Participants (N = 56; 25 male; M = 24.39 years, SD = 7.71) in the US-reactivation and control group underwent differential fear conditioning to fear-relevant (spiders/snakes) and fear-irrelevant (geometric shapes) CSs on Day 1. On Day 2, participants received either reminded (US-reactivation) or non-reminded extinction training. Tests of fear recovery, conducted 24 h later, revealed recovery of differential electrodermal responding to both classes of CSs in the control group, but not in the US-reactivation group. These findings indicate that the US reactivation-extinction procedure eliminated recovery of extinguished responding not only to fear-irrelevant, but also to fear-relevant CSs. Contrasting previous reports, our findings show that post-reconsolidation recovery of conditioned responding is not a function of CS fear-relevance and that persistent reduction of fear, conditioned to fear-relevant CSs, can be achieved through behavioral manipulations of reconsolidation.
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Affiliation(s)
- Alina Thompson
- School of Psychology and Speech Pathology, Curtin University, Australia.
| | - Ottmar V Lipp
- School of Psychology and Speech Pathology, Curtin University, Australia; ARC-SRI: Science of Learning Research Centre, Australia
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37
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Garcinol: A Magic Bullet of Amnesia for Maladaptive Memories? Neuropsychopharmacology 2017; 42:581-583. [PMID: 27550731 PMCID: PMC5240180 DOI: 10.1038/npp.2016.165] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 08/16/2016] [Indexed: 11/08/2022]
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38
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Monsey MS, Sanchez H, Taylor JR. The Naturally Occurring Compound Garcinia Indica Selectively Impairs the Reconsolidation of a Cocaine-Associated Memory. Neuropsychopharmacology 2017; 42:587-597. [PMID: 27380937 PMCID: PMC5240167 DOI: 10.1038/npp.2016.117] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 06/29/2016] [Accepted: 06/30/2016] [Indexed: 12/27/2022]
Abstract
Sustained abstinence from cocaine use is frequently compromised by exposure to environmental stimuli that have previously been strongly associated with drug taking. Such cues trigger memories of the effects of the drug, leading to craving and potential relapse. Our work has demonstrated that manipulating cocaine-cue memories by destabilizing them through interfering with the reconsolidation process is one potential therapeutic tool by which to prolong abstinence. Here, we examine the use of the naturally occurring amnestic agent garcinol to manipulate an established cocaine-cue memory. Rats underwent 12 days of cocaine self-administration training during which time active lever presses resulted in an i.v. infusion of cocaine that was paired with a light/tone cue. Next rats underwent lever extinction for 8 days followed by light/tone reactivation and a test of cue-induced cocaine-seeking behavior. Systemic injection of garcinol 30 min after reactivation significantly impaired the reconsolidation of the cocaine-associated cue memory. Further testing revealed that garcinol had no effect on drug-induced cocaine-seeking, but was capable of blocking the initial conditioned reinforcing properties of the cue and prevents the acquisition of a new response. Additional experiments showed that the effects of garcinol are specific to reactivated memories only, temporally constrained, cue-specific, long-lasting, and persist following extended cocaine access. These data provide strong evidence that the naturally occurring compound, garcinol, may be a potentially useful tool to sustain abstinence from drug abuse.
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Affiliation(s)
- Melissa S Monsey
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| | - Hayde Sanchez
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA
| | - Jane R Taylor
- Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA,Department of Psychology, Yale University, New Haven, CT, USA,The Interdepartmental Neuroscience Program, Yale University, New Haven, CT, USA,Department of Psychiatry, Yale University School of Medicine, 300 George Street, New Haven, CT 06511, USA, Tel: +1 203 974 7727, Fax: +1 203 974 7724, E-mail:
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Krawczyk MC, Fernández RS, Pedreira ME, Boccia MM. Toward a better understanding on the role of prediction error on memory processes: From bench to clinic. Neurobiol Learn Mem 2016; 142:13-20. [PMID: 28017817 DOI: 10.1016/j.nlm.2016.12.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 12/14/2016] [Accepted: 12/16/2016] [Indexed: 10/20/2022]
Abstract
Experimental psychology defines Prediction Error (PE) as a mismatch between expected and current events. It represents a unifier concept within the memory field, as it is the driving force of memory acquisition and updating. Prediction error induces updating of consolidated memories in strength or content by memory reconsolidation. This process has two different neurobiological phases, which involves the destabilization (labilization) of a consolidated memory followed by its restabilization. The aim of this work is to emphasize the functional role of PE on the neurobiology of learning and memory, integrating and discussing different research areas: behavioral, neurobiological, computational and clinical psychiatry.
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Affiliation(s)
- María C Krawczyk
- Laboratorio de Neurofarmacología de los Procesos de Memoria, Cátedra de Farmacología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, 5(to)piso, Buenos Aires, Argentina.
| | - Rodrigo S Fernández
- Laboratorio de Neurobiología de la Memoria, Departamento de Fisiología y Biología Molecular y Celular, IFIBYNE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina. Pab. II, 2(do)piso, Buenos Aires, Argentina.
| | - María E Pedreira
- Laboratorio de Neurobiología de la Memoria, Departamento de Fisiología y Biología Molecular y Celular, IFIBYNE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina. Pab. II, 2(do)piso, Buenos Aires, Argentina.
| | - Mariano M Boccia
- Laboratorio de Neurofarmacología de los Procesos de Memoria, Cátedra de Farmacología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, 5(to)piso, Buenos Aires, Argentina.
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40
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Consolidation and reconsolidation are impaired by oral propranolol administered before but not after memory (re)activation in humans. Neurobiol Learn Mem 2016; 142:118-125. [PMID: 28003127 DOI: 10.1016/j.nlm.2016.12.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 12/10/2016] [Accepted: 12/14/2016] [Indexed: 02/05/2023]
Abstract
Propranolol administered immediately after learning or after recall has been found to impair memory consolidation or reconsolidation (respectively) in animals, but less reliably so in humans. Since reconsolidation impairment has been proposed as a treatment for mental disorders that have at their core an emotional memory, it is desirable to understand how to reliably reduce the strength of pathogenic memories in humans. We postulated that since humans (unlike experimental animals) typically receive propranolol orally, this introduces a delay before this drug can exert its memory impairment effects, which may render it less effective. As a means to test this, in two double-blind placebo-controlled experiments, we examined the capacity of propranolol to impair consolidation and reconsolidation as a function of timing of ingestion in healthy subjects. In Experiment 1, (n=36), propranolol administered immediately after learning or recall failed to impair the consolidation or reconsolidation of the memory of a standardized slideshow with an accompanying emotional story. In Experiment 2 (n=50), propranolol given 60-75min before learning or recall successfully impaired memory consolidation and reconsolidation. These results suggest that it is possible to achieve reliable memory impairment in humans if propranolol is given before learning or before recall, but not after.
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41
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Hopf FW. Do specific NMDA receptor subunits act as gateways for addictive behaviors? GENES BRAIN AND BEHAVIOR 2016; 16:118-138. [PMID: 27706932 DOI: 10.1111/gbb.12348] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/27/2016] [Accepted: 10/03/2016] [Indexed: 12/19/2022]
Abstract
Addiction to alcohol and drugs is a major social and economic problem, and there is considerable interest in understanding the molecular mechanisms that promote addictive drives. A number of proteins have been identified that contribute to expression of addictive behaviors. NMDA receptors (NMDARs), a subclass of ionotropic glutamate receptors, have been of particular interest because their physiological properties make them an attractive candidate for gating induction of synaptic plasticity, a molecular change thought to mediate learning and memory. NMDARs are generally inactive at the hyperpolarized resting potentials of many neurons. However, given sufficient depolarization, NMDARs are activated and exhibit long-lasting currents with significant calcium permeability. Also, in addition to stimulating neurons by direct depolarization, NMDARs and their calcium signaling can allow strong and/or synchronized inputs to produce long-term changes in other molecules (such as AMPA-type glutamate receptors) which can last from days to years, binding internal and external stimuli in a long-term memory trace. Such memories could allow salient drug-related stimuli to exert strong control over future behaviors and thus promote addictive drives. Finally, NMDARs may themselves undergo plasticity, which can alter subsequent neuronal stimulation and/or the ability to induce plasticity. This review will address recent and past findings suggesting that NMDAR activity promotes drug- and alcohol-related behaviors, with a particular focus on GluN2B subunits as possible central regulators of many addictive behaviors, as well as newer studies examining the importance of non-canonical NMDAR subunits and endogenous NMDAR cofactors.
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Affiliation(s)
- F W Hopf
- Alcohol and Addiction Research Group, Department of Neurology, University of California at San Francisco, San Francisco, CA, USA
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42
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Reconsolidation and psychopathology: Moving towards reconsolidation-based treatments. Neurobiol Learn Mem 2016; 142:162-171. [PMID: 27838441 DOI: 10.1016/j.nlm.2016.11.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/19/2016] [Accepted: 11/04/2016] [Indexed: 01/14/2023]
Abstract
Interfering with memory reconsolidation has valuable potential to be used as a treatment for maladaptive memories and psychiatric disorders. Numerous studies suggest that reconsolidation-based therapies may benefit psychiatric populations, but much remains unanswered. After reviewing the literature in clinical and healthy human populations, we discuss some of the major limitations to reconsolidation studies and clinical application. Finally, we provide recommendations for developing improved reconsolidation-based treatments, namely exploiting known boundary conditions and focusing on a novel unconditioned stimulus-retrieval paradigm.
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43
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Villain H, Benkahoul A, Drougard A, Lafragette M, Muzotte E, Pech S, Bui E, Brunet A, Birmes P, Roullet P. Effects of Propranolol, a β-noradrenergic Antagonist, on Memory Consolidation and Reconsolidation in Mice. Front Behav Neurosci 2016; 10:49. [PMID: 27014009 PMCID: PMC4789536 DOI: 10.3389/fnbeh.2016.00049] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 02/29/2016] [Indexed: 12/20/2022] Open
Abstract
Memory reconsolidation impairment using the β-noradrenergic receptor blocker propranolol is a promising novel treatment avenue for patients suffering from pathogenic memories, such as post-traumatic stress disorder (PTSD). However, in order to better inform targeted treatment development, the effects of this compound on memory need to be better characterized via translational research. We examined the effects of systemic propranolol administration in mice undergoing a wide range of behavioral tests to determine more specifically which aspects of the memory consolidation and reconsolidation are impaired by propranolol. We found that propranolol (10 mg/kg) affected memory consolidation in non-aversive tasks (object recognition and object location) but not in moderately (Morris water maze (MWM) to highly (passive avoidance, conditioned taste aversion) aversive tasks. Further, propranolol impaired memory reconsolidation in the most and in the least aversive tasks, but not in the moderately aversive task, suggesting its amnesic effect was not related to task aversion. Moreover, in aquatic object recognition and location tasks in which animals were forced to behave (contrary to the classic versions of the tasks); propranolol did not impair memory reconsolidation. Taken together our results suggest that the memory impairment observed after propranolol administration may result from a modification of the emotional valence of the memory rather than a disruption of the contextual component of the memory trace. This is relevant to the use of propranolol to block memory reconsolidation in individuals with PTSD, as such a treatment would not erase the traumatic memory but only reduce the emotional valence associated with this event.
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Affiliation(s)
- Hélène Villain
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS) Toulouse, France
| | - Aïcha Benkahoul
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS) Toulouse, France
| | - Anne Drougard
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS) Toulouse, France
| | - Marie Lafragette
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS) Toulouse, France
| | - Elodie Muzotte
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS) Toulouse, France
| | - Stéphane Pech
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS) Toulouse, France
| | - Eric Bui
- Department of Psychiatry, Massachusetts General Hospital & Harvard Medical School Boston, MA, USA
| | - Alain Brunet
- Department of Psychiatry, Douglas Mental Health University Institute and McGill University Montréal, QC, Canada
| | - Philippe Birmes
- Toulouse NeuroImaging Center, Université de Toulouse, Institut national de la santé et de la recherche médicale (INSERM), Université Paul Sabatier (UPS) Toulouse, France
| | - Pascal Roullet
- Centre de Recherches sur la Cognition Animale, Centre de Biologie Intégrative, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS) Toulouse, France
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44
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Ghitza UE. Commentary: Rewriting the Valuation and Salience of Alcohol-Related Stimuli via Memory Reconsolidation. Front Psychiatry 2016; 7:41. [PMID: 27014104 PMCID: PMC4794481 DOI: 10.3389/fpsyt.2016.00041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 03/04/2016] [Indexed: 11/13/2022] Open
Affiliation(s)
- Udi E Ghitza
- Center for the Clinical Trials Network, National Institute on Drug Abuse, National Institutes of Health , Bethesda, MD , USA
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