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Allen MI, Johnson BN, Kumar A, Su Y, Singh S, Deep G, Nader MA. Behavioral and neuronal extracellular vesicle biomarkers associated with nicotine's enhancement of the reinforcing strength of cocaine in female and male monkeys. ADDICTION NEUROSCIENCE 2024; 11:100151. [PMID: 38911873 PMCID: PMC11192513 DOI: 10.1016/j.addicn.2024.100151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
While the majority of people with cocaine use disorders (CUD) also co-use tobacco/nicotine, most preclinical cocaine research does not include nicotine. The present study examined nicotine and cocaine co-use under several conditions of intravenous drug self-administration in monkeys, as well as potential peripheral biomarkers associated with co-use. In Experiment 1, male rhesus monkeys (N = 3) self-administered cocaine (0.001-0.1 mg/kg/injection) alone and with nicotine (0.01-0.03 mg/kg/injection) under a progressive-ratio schedule of reinforcement. When nicotine was added to cocaine, there was a significant leftward/upward shift in the number of injections received. In Experiment 2, socially housed female and male cynomolgus monkeys (N = 14) self-administered cocaine under a concurrent drug-vs-food choice schedule of reinforcement. Adding nicotine to the cocaine solution shifted the cocaine dose-response curves to the left, with more robust shifts noted in the female animals. There was no evidence of social rank differences. To assess reinforcing strength, delays were added to the presentation of drug; the co-use of nicotine and cocaine required significantly longer delays to decrease drug choice, compared with cocaine alone. Blood samples obtained post-session were used to analyze concentrations of neuronally derived small extracellular vesicles (NDE); significant differences in NDE profile were observed for kappa-opioid receptors when nicotine and cocaine were co-used compared with each drug alone and controls. These results suggest that drug interactions involving the co-use of nicotine and cocaine are not simply changing potency, but rather resulting in changes in reinforcing strength that should be utilized to better understand the neuropharmacology of CUD and the evaluation of potential treatments.
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Affiliation(s)
- Mia I. Allen
- Department of Translational Neuroscience, Wake Forest University School of Medicine, Winston-Salem, NC, United States
- Center for Addiction Research, Wake Forest University School of Medicine, Winston-Salem, NC, United States
| | - Bernard N. Johnson
- Department of Translational Neuroscience, Wake Forest University School of Medicine, Winston-Salem, NC, United States
- Center for Addiction Research, Wake Forest University School of Medicine, Winston-Salem, NC, United States
| | - Ashish Kumar
- Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC, United States
| | - Yixin Su
- Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC, United States
| | - Sangeeta Singh
- Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC, United States
| | - Gagan Deep
- Center for Addiction Research, Wake Forest University School of Medicine, Winston-Salem, NC, United States
- Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC, United States
- J Paul Sticht Center for Healthy Aging and Alzheimer’s Prevention, School of Medicine, Wake Forest University, Winston-Salem, NC, United States
- Department of Cancer Biology, School of Medicine, Wake Forest University, Winston-Salem, NC, United States
- Atrium Health Wake Forest Baptist Comprehensive Cancer Center, Winston-Salem, NC, United States
| | - Michael A. Nader
- Department of Translational Neuroscience, Wake Forest University School of Medicine, Winston-Salem, NC, United States
- Center for Addiction Research, Wake Forest University School of Medicine, Winston-Salem, NC, United States
- Department of Radiology, Wake Forest University School of Medicine, Winston-Salem, NC, United States
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Palazón-Llecha A, Caparrós B, Trujols J, Duran-Sindreu S, Batlle F, Madre M, Mallorquí-Bagué N. Predictors of cocaine use disorder treatment outcomes: a systematic review. Syst Rev 2024; 13:124. [PMID: 38720357 PMCID: PMC11077740 DOI: 10.1186/s13643-024-02550-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 04/26/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Psychosocial approaches are the first-line treatments for cocaine dependence, although they still present high dropout and relapse rates. Thus, there is a pressing need to understand which variables influence treatment outcomes to improve current treatments and prevent dropout and relapse rates. The aim of this study is to explore predictors of treatment retention and abstinence in CUD. METHODS This systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). We searched three databases-PubMed, PsychINFO and Web of Science-for randomized clinical trials (RCTs) published in English and Spanish from database inception through April 1, 2023. We selected all studies that met the inclusion criteria (adults aged ≥ 18, outpatient treatment, CUD as main addiction, and no severe mental illness) to obtain data for the narrative synthesis addressing cocaine abstinence and treatment retention as main outcome variables. After data extraction was completed, risk of bias was assessed using the Cochrane risk-of-bias tool for randomized trials (RoB-2). RESULTS A total of 566 studies were screened, and, of those, 32 RCTs were included in the synthesis. Younger age, more years of cocaine use, and craving levels were significant predictors of relapse and treatment dropout. Fewer withdrawal symptoms, greater baseline abstinence, greater treatment engagement, and more self-efficacy were all predictors of longer duration of abstinence. The role of impulsivity as a predictor of CUD is unclear due to conflicting data, although the evidence generally suggests that higher impulsivity scores can predict more severe addiction and withdrawal symptoms, and earlier discontinuation of treatment. CONCLUSION Current evidence indicates which variables have a direct influence on treatment outcomes, including well-studied cocaine use-related variables. However, additional variables, such as genetic markers, appear to have a high impact on treatment outcomes and need further study. SYSTEMATIC REVIEW REGISTRATION This systematic review is registered at PROSPERO (ID: CRD42021271847). This study was funded by the Spanish Ministry of Science, Innovation and Universities, Instituto Carlos III (ISCIII) (FIS PI20/00929) and FEDER funds and Fundació Privada Hospital de la Santa Creu i Sant Pau (Pla d'acció social 2020).
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Affiliation(s)
- Alba Palazón-Llecha
- Department of Psychiatry, Addictive Behaviours Unit, Hospital de La Santa Creu I Sant Pau, Sant Antoni Maria Claret 167, Pavelló 20, Planta 2, 08025, Barcelona, Spain
- Mental Health Research Group, Institut de Recerca Sant Pau (IR Sant Pau), Sant Quintí 77-79, 08041, Barcelona, Spain
- Department of Psychology, University of Girona, Edifici Seminari, Campus Barri Vell, Sant Domènech 9, 17004, Girona, Spain
| | - Beatriz Caparrós
- Department of Psychology, University of Girona, Edifici Seminari, Campus Barri Vell, Sant Domènech 9, 17004, Girona, Spain
| | - Joan Trujols
- Department of Psychiatry, Addictive Behaviours Unit, Hospital de La Santa Creu I Sant Pau, Sant Antoni Maria Claret 167, Pavelló 20, Planta 2, 08025, Barcelona, Spain
- Mental Health Research Group, Institut de Recerca Sant Pau (IR Sant Pau), Sant Quintí 77-79, 08041, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III (ISCIII), Monforte de Lemos 3-5, Pavellón 11, Planta 0, 28029, Madrid, Spain
| | - Santiago Duran-Sindreu
- Department of Psychiatry, Addictive Behaviours Unit, Hospital de La Santa Creu I Sant Pau, Sant Antoni Maria Claret 167, Pavelló 20, Planta 2, 08025, Barcelona, Spain
- Mental Health Research Group, Institut de Recerca Sant Pau (IR Sant Pau), Sant Quintí 77-79, 08041, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III (ISCIII), Monforte de Lemos 3-5, Pavellón 11, Planta 0, 28029, Madrid, Spain
| | - Francesca Batlle
- Department of Psychiatry, Addictive Behaviours Unit, Hospital de La Santa Creu I Sant Pau, Sant Antoni Maria Claret 167, Pavelló 20, Planta 2, 08025, Barcelona, Spain
- Mental Health Research Group, Institut de Recerca Sant Pau (IR Sant Pau), Sant Quintí 77-79, 08041, Barcelona, Spain
| | - Mercè Madre
- Department of Psychiatry, Addictive Behaviours Unit, Hospital de La Santa Creu I Sant Pau, Sant Antoni Maria Claret 167, Pavelló 20, Planta 2, 08025, Barcelona, Spain
- Mental Health Research Group, Institut de Recerca Sant Pau (IR Sant Pau), Sant Quintí 77-79, 08041, Barcelona, Spain
| | - Núria Mallorquí-Bagué
- Department of Psychiatry, Addictive Behaviours Unit, Hospital de La Santa Creu I Sant Pau, Sant Antoni Maria Claret 167, Pavelló 20, Planta 2, 08025, Barcelona, Spain.
- Mental Health Research Group, Institut de Recerca Sant Pau (IR Sant Pau), Sant Quintí 77-79, 08041, Barcelona, Spain.
- Department of Psychology, University of Girona, Edifici Seminari, Campus Barri Vell, Sant Domènech 9, 17004, Girona, Spain.
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Arruda T, Sinko L, Regier P, Tufanoglu A, Curtin A, Teitelman A, Ayaz H, Cronholm P, Childress AR. Exploring Social Impairment in Those with Opioid Use Disorder: Linking Impulsivity, Childhood Trauma, and the Prefrontal Cortex. RESEARCH SQUARE 2024:rs.3.rs-4202009. [PMID: 38659778 PMCID: PMC11042419 DOI: 10.21203/rs.3.rs-4202009/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Background Challenges with social functioning, which is a hallmark of opioid use disorder (OUD), are a drawback in treatment adherence and maintenance. Yet, little research has explored the underlying mechanisms of this impairment. Impulsivity, a known risk factor for OUD, and corresponding neural alterations may be at the center of this issue. Childhood adversity, which has been linked to both impulsivity and poorer treatment outcomes, could also affect this relationship. This study aims to understand the relationship between impulsivity and social functioning in those recovering from OUD. Differences in the prefrontal cortex will be analyzed, as well as potential moderating effects of childhood trauma. Methods Participants with (N = 16) and without (N = 19) social impairment completed a survey (e.g., social functioning, Barrat's Impulsivity Scale, Adverse Childhood Experiences (ACEs) and cognitive tasks while undergoing neuroimaging. Functional near infrared spectroscopy (fNIRS), a modern, portable, wearable and low-cost neuroimaging technology, was used to measure prefrontal cortex activity during a behavioral inhibition task (Go/No-Go task). Results Those who social functioning survey scores indicated social impairment (n = 16) scored significantly higher on impulsivity scale (t(33)= -3.4, p < 0.01) and reported more depressive symptoms (t(33) = -2.8, p < 0.01) than those reporting no social impairment (n = 19). Social functioning was negatively correlated with impulsivity (r=-0.7, p < 0.001), such that increased impulsivity corresponded to decreased social functioning. Childhood trauma emerged as a moderator of this relationship, but only when controlling for the effects of depression, B=-0.11, p = 0.023. Although both groups had comparable Go/No-Go task performance, the socially impaired group displayed greater activation in the dorsolateral (F(1,100.8) = 7.89, p < 0.01), ventrolateral (F(1,88.8) = 7.33, p < 0.01), and ventromedial (F(1,95.6) = 7.56, p < 0.01) prefrontal cortex during impulse control. Conclusion In addition to being more impulsive, individuals with social impairment exhibited differential activation in the prefrontal cortex when controlling responses. Furthermore, the impact of impulsivity on social functioning varies depending on ACEs demonstrating that it must be considered in treatment approaches. These findings have implications for addressing social needs and impulsivity of those in recovery, highlighting the importance of a more personalized, integrative, and trauma-informed approach to intervention.
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Towers EB, Shapiro DA, Abel JM, Bakhti-Suroosh A, Kupkova K, Auble DT, Grant PA, Lynch WJ. Transcriptional Profile of Exercise-Induced Protection Against Relapse to Cocaine Seeking in a Rat Model. BIOLOGICAL PSYCHIATRY GLOBAL OPEN SCIENCE 2023; 3:734-745. [PMID: 37881559 PMCID: PMC10593899 DOI: 10.1016/j.bpsgos.2023.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 02/05/2023] Open
Abstract
Background Exercise has shown promise as a treatment for cocaine use disorder; however, the mechanism underlying its efficacy has remained elusive. Methods We used a rat model of relapse (cue-induced reinstatement) and exercise (wheel running, 2 hours/day) coupled with RNA sequencing to establish transcriptional profiles associated with the protective effects of exercise (during early withdrawal [days 1-7] or throughout withdrawal [days 1-14]) versus noneffective exercise (during late withdrawal [days 8-14]) against cocaine-seeking and sedentary conditions. Results As expected, cue-induced cocaine seeking was highest in the sedentary and late-withdrawal exercise groups; both groups also showed upregulation of a Grin1-associated transcript and enrichment of Drd1-Nmdar1 complex and glutamate receptor complex terms. Surprisingly, these glutamate markers were also enriched in the early- and throughout-withdrawal exercise groups, despite lower levels of cocaine seeking. However, a closer examination of the Grin1-associated transcript revealed a robust loss of transcripts spanning exons 9 and 10 in the sedentary condition relative to saline controls that was normalized by early- and throughout-withdrawal exercise, but not late-withdrawal exercise, indicating that these exercise conditions may normalize RNA mis-splicing induced by cocaine seeking. Our findings also revealed novel mechanisms by which exercise initiated during early withdrawal may modulate glutamatergic signaling in dorsomedial prefrontal cortex (e.g., via transcripts associated with non-NMDA glutamate receptors or those affecting signaling downstream of NMDA receptors), along with mechanisms outside of glutamatergic signaling such as circadian rhythm regulation and neuronal survival. Conclusions These findings provide a rich resource for future studies aimed at manipulating these molecular networks to better understand how exercise decreases cocaine seeking.
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Affiliation(s)
- Eleanor Blair Towers
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia
- Medical Scientist Training Program, University of Virginia, Charlottesville, Virginia
| | - Daniel A. Shapiro
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia
| | - Jean M. Abel
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia
| | - Anousheh Bakhti-Suroosh
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia
| | - Kristyna Kupkova
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, Virginia
| | - David T. Auble
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, Virginia
| | - Patrick A. Grant
- Department of Biomedical Science, Florida Atlantic University, Boca Raton, Florida
| | - Wendy J. Lynch
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia
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Wardle MC, Hoots JK, Miloslavich K, Nunez C, Dios CD, Holden C, Ahluwahlia A, Green CE, Lane SD, Schmitz JM. Deficits in consummatory reward relate to severity of cocaine use. Drug Alcohol Depend 2023; 249:109950. [PMID: 37301068 PMCID: PMC10405525 DOI: 10.1016/j.drugalcdep.2023.109950] [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: 02/21/2023] [Revised: 04/26/2023] [Accepted: 05/27/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND AND AIMS Identifying modifiable neuropsychological factors associated with more severe CUD could improve CUD treatment. Impairments in processing of non-drug rewards may be one such factor. This study assessed the relationship between reward functioning and cocaine use severity using multi-modal measures of three distinct reward functions: consummatory reward (pleasure or "liking"); motivational reward ("wanting") and reward learning. METHODS Fifty-three adults with at least moderate CUD completed self-report and behavioral measures of consummatory reward, motivational reward and reward learning, and a composite cocaine use severity measure including quantity, frequency and life impacts of cocaine use. We conducted parallel Frequentist and Bayesian multiple regressions with measures of reward functioning as predictors of cocaine use severity. RESULTS Less self-reported ability to experience pleasure, a hypothesized measure of consummatory reward, significantly predicted greater severity after adjustment for covariates and multiple hypothesis testing, β = 0.39, t(38) = 2.86, p = 0.007. Bayesian analyses confirmed a highly likely association between severity and ability to experience pleasure, and provided moderate evidence for associations with willingness to exert effort and reward learning. CONCLUSIONS Our results suggest that less experience of subjective pleasure is related to greater cocaine use severity. This cross-sectional study cannot establish whether differences in consummatory reward are pre-existing, a result of CUD, or both. However, these results suggest interventions focused on increasing subjective pleasure, such as mindful "savoring", should be investigated for CUD.
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Affiliation(s)
- Margaret C Wardle
- Psychology Department, University of Illinois Chicago, 1007 W. Harrison St, Chicago, IL60607, United States.
| | - Jennifer K Hoots
- Psychology Department, University of Illinois Chicago, 1007 W. Harrison St, Chicago, IL60607, United States
| | - Krista Miloslavich
- Psychology Department, University of Illinois Chicago, 1007 W. Harrison St, Chicago, IL60607, United States
| | - Cecilia Nunez
- Psychology Department, University of Illinois Chicago, 1007 W. Harrison St, Chicago, IL60607, United States
| | - Constanza de Dios
- Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, 1941 East Rd, Houston, TX77054, United States
| | - Christopher Holden
- Department of Psychiatry, University of Illinois Hospital and Health Sciences System, 1740 W. Taylor St, Chicago, IL60612, United States
| | - Aneet Ahluwahlia
- Department of Psychiatry, University of Illinois Hospital and Health Sciences System, 1740 W. Taylor St, Chicago, IL60612, United States
| | - Charles E Green
- Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, 1941 East Rd, Houston, TX77054, United States
| | - Scott D Lane
- Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, 1941 East Rd, Houston, TX77054, United States
| | - Joy M Schmitz
- Louis A. Faillace, MD, Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at Houston, 1941 East Rd, Houston, TX77054, United States
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Luba R, Carpenter KM, Evans SM, Slonim J, Foltin RW. Impulsivity and Treatment Outcomes in Individuals with Cocaine Use Disorder: Examining the Gap between Interest and Adherence. Subst Use Misuse 2023; 58:1014-1020. [PMID: 37078221 PMCID: PMC10299617 DOI: 10.1080/10826084.2023.2201851] [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] [Indexed: 04/21/2023]
Abstract
Background: Impulsivity is implicated in the development and maintenance of Cocaine Use Disorder (CUD). Less work has examined impulsivity's role on interest in initiating treatment, treatment adherence, or treatment response. No pharmacotherapies are approved for CUD, so efforts to understand and bolster the effects of psychotherapy are important in guiding and refining treatment. The present study examined the impact of impulsivity on interest in treatment, treatment initiation, treatment adherence, and treatment outcomes in individuals with CUD. Methods: Following the completion of a larger study on impulsivity and CUD participants were offered 14 sessions of (12 weeks) Cognitive Behavioral Relapse Prevention (CBT-RP). Before starting treatment, participants completed seven self-report and four behavioral measures of impulsivity. Sixty-eight healthy adults (36% female) with CUD (aged 49.4 ± 7.9) expressed an interest in treatment. Results: Greater scores on several self-report measures of impulsivity, and fewer difficulties with delayed gratification were associated with increased interest in treatment in both males and females. 55 participants attended at least 1 treatment session, while 13 participants did attend a single session. Individuals who attended at least one treatment session scored lower on measures of lack of perseverance and procrastination. Still, measures of impulsivity did not reliably predict session attendance nor the frequency of cocaine-positive urine samples throughout treatment. Males attended nearly twice as many treatment sessions as females despite nonsignificant associations between impulsivity in males and the number of sessions attended. Conclusions: Greater impulsivity in individuals with CUD was associated with expressing an interest in treatment, but not treatment adherence or response.
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Affiliation(s)
- R Luba
- Division on Substance Use Disorders, New York State Psychiatric Institute and Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons and Columbia, University Irving Medical Center, New York, NY, USA
| | - K M Carpenter
- Division on Substance Use Disorders, New York State Psychiatric Institute and Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons and Columbia, University Irving Medical Center, New York, NY, USA
| | - S M Evans
- Division on Substance Use Disorders, New York State Psychiatric Institute and Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons and Columbia, University Irving Medical Center, New York, NY, USA
| | - J Slonim
- Division on Substance Use Disorders, New York State Psychiatric Institute and Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons and Columbia, University Irving Medical Center, New York, NY, USA
| | - R W Foltin
- Division on Substance Use Disorders, New York State Psychiatric Institute and Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons and Columbia, University Irving Medical Center, New York, NY, USA
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Schwartz EKC, Wolkowicz NR, De Aquino JP, MacLean RR, Sofuoglu M. Cocaine Use Disorder (CUD): Current Clinical Perspectives. Subst Abuse Rehabil 2022; 13:25-46. [PMID: 36093428 PMCID: PMC9451050 DOI: 10.2147/sar.s337338] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 08/22/2022] [Indexed: 11/29/2022] Open
Abstract
Cocaine use disorder (CUD) is a devastating disorder, impacting both individuals and society. Individuals with CUD face many barriers in accessing treatment for CUD, and most individuals with CUD never receive treatment. In this review, we provide an overview of CUD, including risk factors for CUD, common co-occurring disorders, acute and chronic effects of cocaine use, and currently available pharmacological and behavioral treatments. There are no FDA-approved pharmacological treatments for CUD. Future studies with larger sample sizes and testing treatment combinations are warranted. However, individuals with CUD and co-occurring disorders (eg, a mood or anxiety disorder) may benefit from medication treatments. There are behavioral interventions that have demonstrated efficacy in treating CUD – contingency management (CM) and cognitive-behavioral therapy for substance use disorders (CBT-SUD) in particular – however many barriers remain in delivering these treatments to patients. Following the discussion of current treatments, we highlight some promising emerging treatments, as well as offer a framework that can be used in building a treatment plan for individuals with CUD.
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Affiliation(s)
- Elizabeth K C Schwartz
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Department of Psychiatry, VA Connecticut Healthcare System, West Haven, CT, USA
- Correspondence: Elizabeth KC Schwartz, Tel +1-203-932-5711, Fax +1-203-937-3472, Email
| | - Noah R Wolkowicz
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Department of Psychiatry, VA Connecticut Healthcare System, West Haven, CT, USA
| | - Joao P De Aquino
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Department of Psychiatry, VA Connecticut Healthcare System, West Haven, CT, USA
| | - R Ross MacLean
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Department of Psychiatry, VA Connecticut Healthcare System, West Haven, CT, USA
| | - Mehmet Sofuoglu
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
- Department of Psychiatry, VA Connecticut Healthcare System, West Haven, CT, USA
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Witek K, Wydra K, Filip M. A High-Sugar Diet Consumption, Metabolism and Health Impacts with a Focus on the Development of Substance Use Disorder: A Narrative Review. Nutrients 2022; 14:2940. [PMID: 35889898 PMCID: PMC9323357 DOI: 10.3390/nu14142940] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/13/2022] [Accepted: 07/15/2022] [Indexed: 01/01/2023] Open
Abstract
Carbohydrates are important macronutrients in human and rodent diet patterns that play a key role in crucial metabolic pathways and provide the necessary energy for proper body functioning. Sugar homeostasis and intake require complex hormonal and nervous control to proper body energy balance. Added sugar in processed food results in metabolic, cardiovascular, and nervous disorders. Epidemiological reports have shown enhanced consumption of sweet products in children and adults, especially in reproductive age and in pregnant women, which can lead to the susceptibility of offspring's health to diseases in early life or in adulthood and proneness to mental disorders. In this review, we discuss the impacts of high-sugar diet (HSD) or sugar intake during the perinatal and/or postnatal periods on neural and behavioural disturbances as well as on the development of substance use disorder (SUD). Since several emotional behavioural disturbances are recognized as predictors of SUD, we also present how HSD enhances impulsive behaviour, stress, anxiety and depression. Apart from the influence of HSD on these mood disturbances, added sugar can render food addiction. Both food and addictive substances change the sensitivity of the brain rewarding neurotransmission signalling. The results of the collected studies could be important in assessing sugar intake, especially via maternal dietary patterns, from the clinical perspective of SUD prevention or pre-existing emotional disorders. Methodology: This narrative review focuses on the roles of a high-sugar diet (HSD) and added sugar in foods and on the impacts of glucose and fructose on the development of substance use disorder (SUD) and on the behavioural predictors of drugs abuse. The literature was reviewed by two authors independently according to the topic of the review. We searched the PubMed and Scopus databases and Multidisciplinary Digital Publishing Institute open access scientific journals using the following keyword search strategy depending on the theme of the chapter: "high-sugar diet" OR "high-carbohydrate diet" OR "sugar" OR "glucose" OR "fructose" OR "added sugar" AND keywords. We excluded inaccessible or pay-walled articles, abstracts, conference papers, editorials, letters, commentary, and short notes. Reviews, experimental studies, and epidemiological data, published since 1990s, were searched and collected depending on the chapter structure. After the search, all duplicates are thrown out and full texts were read, and findings were rescreened. After the selection process, appropriate papers were included to present in this review.
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Affiliation(s)
| | | | - Małgorzata Filip
- Department of Drug Addiction Pharmacology, Maj Institute of Pharmacology Polish Academy of Sciences, Smętna Street 12, 31-343 Kraków, Poland; (K.W.); (K.W.)
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Cannabidiol effects on cognition in individuals with cocaine use disorder: Exploratory results from a randomized controlled trial. Pharmacol Biochem Behav 2022; 216:173376. [DOI: 10.1016/j.pbb.2022.173376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 02/16/2022] [Accepted: 03/25/2022] [Indexed: 11/22/2022]
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Davis JP, Rao P, Dilkina B, Prindle J, Eddie D, Christie NC, DiGuiseppi G, Saba S, Ring C, Dennis M. Identifying individual and environmental predictors of opioid and psychostimulant use among adolescents and young adults following outpatient treatment. Drug Alcohol Depend 2022; 233:109359. [PMID: 35219997 DOI: 10.1016/j.drugalcdep.2022.109359] [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: 05/26/2021] [Revised: 02/10/2022] [Accepted: 02/13/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND The United States (US) continues to grapple with a drug overdose crisis. While opioids remain the main driver of overdose deaths, deaths involving psychostimulants such as methamphetamine are increasing with and without opioid involvement. Recent treatment admission data reflect overdose fatality trends suggesting greater psychostimulant use, both alone and in combination with opioids. Adolescents and young adults are particularly vulnerable with generational trends showing that these populations have particularly high relapse rates following treatment. METHODS We assessed demographic, psychosocial, psychological comorbidity, and environmental factors (percent below the poverty line, percent unemployed, neighborhood homicide rate, population density) that confer risk for opioid and/or psychostimulant use following substance use disorder treatment using two complementary machine learning approaches-random forest and least absolute shrinkage and selection operator (LASSO) modelling-with latency to opioid and/or psychostimulant as the outcome variable. RESULTS Individual level predictors varied by substance use disorder severity, with age, tobacco use, criminal justice involvement, race/ethnicity, and mental health diagnoses emerging at top predictors. Environmental variabels including US region, neighborhood poverty, population, and homicide rate around patients' treatment facility emerged as either protective or risk factors for latency to opioid and/or psychostimulant use. CONCLUSIONS Environmental variables emerged as one of the top predictors of latency to use across all levels of substance use disorder severity. Results highlight the need for tailored treatments based on severity, and implicate environmental variables as important factors influencing treatment outcomes.
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Affiliation(s)
- Jordan P Davis
- Suzanne Dworak-Peck School of Social Work, University of Southern California, USA.
| | - Prathik Rao
- Viterbi School of Engineering, Computer Science, University of Southern California, USA
| | - Bistra Dilkina
- Viterbi School of Engineering, Computer Science, University of Southern California, USA
| | - John Prindle
- Suzanne Dworak-Peck School of Social Work, University of Southern California, USA
| | - David Eddie
- Recovery Research Institute, Center for Addiction Medicine, Massachusetts General Hospital, Harvard Medical School, USA
| | - Nina C Christie
- Department of Psychology, University of Sothern California & Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, USA
| | - Graham DiGuiseppi
- Suzanne Dworak-Peck School of Social Work; USC Center for Artificial Intelligence in Society, USC Center for Mindfulness Science, USC Institute for Addiction Science, University of Southern California, USA
| | - Shaddy Saba
- Suzanne Dworak-Peck School of Social Work, University of Southern California, USA
| | - Colin Ring
- Department of Psychology, Loma Linda University, USA
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11
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Longitudinal changes in network engagement during cognitive control in cocaine use disorder. Drug Alcohol Depend 2021; 229:109151. [PMID: 34753083 PMCID: PMC8671376 DOI: 10.1016/j.drugalcdep.2021.109151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/15/2021] [Accepted: 10/15/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND Cocaine use disorder (CUD) is characterized by poor cognitive control and has limited empirically supported treatment options. Furthermore, an understanding of brain mechanisms underlying CUD is at a relatively early stage. Thus, this study aimed to investigate longitudinal alterations in functional neural networks associated with cognitive control in cocaine use disorder (CUD). METHODS Secondary analysis was performed on data from 44 individuals who participated in three randomized clinical trials for CUD and completed an fMRI Stroop task both at baseline and post-treatment. Independent component analysis (ICA) was performed to assess changes in functional network engagement and investigate associations with cocaine-use behaviors. Mixed linear models were performed to test for longitudinal effects on network engagement and relationships with baseline patterns of cocaine use (i.e., past-month frequency and lifetime years of use) and periods of abstinence/use between scans (i.e., percent negative urine toxicology and maximum days of contiguous abstinence). RESULTS Six functional networks were identified as being related to cognitive control and/or exhibiting changes in engagement following treatment. Results indicated that engagement of amygdala-striatal, middle frontal and right-frontoparietal networks were reduced over time in CUD. Less change in the amygdala-striatal network was associated with greater lifetime years of cocaine use. Additional analyses revealed that negative toxicology results and achievement of continuous abstinence were associated with greater engagement of the right-frontoparietal network. CONCLUSIONS Neural systems that underlie cognitive control may change over time in individuals with CUD. A longer history of cocaine-use may hinder changes in network activity, potentially impeding recovery.
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12
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Foltin RW, Luba R, Chen Y, Wang Y, Evans SM. Impulsivity in cocaine users compared to matched controls: Effects of sex and preferred route of cocaine use. Drug Alcohol Depend 2021; 226:108840. [PMID: 34246916 PMCID: PMC8355072 DOI: 10.1016/j.drugalcdep.2021.108840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/26/2021] [Accepted: 05/01/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Impulsivity has been identified as playing a role in cocaine use. The purpose of this study was to explore self-report measures of impulsivity in large groups of male and female cocaine users and matched controls and to determine if differences in impulsivity measures within a group of cocaine users related to self-reported money spent on cocaine and route of cocaine use. METHODS Eight self-report impulsivity measures yielding 34 subscales were obtained in 230 cocaine users (180 M, 50 F) and a matched group of 119 healthy controls (89 M, 30 F). Correlational analysis of the questionnaires revealed 2 factors: Impulsive Action (Factor 1) consisting of many traditional impulsivity measures and Thrill-seeking (Factor 2) consisting of delay discounting, sensation and thrill seeking. RESULTS Sex influenced within group comparisons. Impulsive Action scores did not vary as a function of sex within either group. But, male controls and male cocaine users had greater Thrill-seeking scores than females within the same group. Sex also influenced between group comparisons. Male cocaine users had greater Impulsive Action scores while female cocaine users had greater Thrill-seeking scores than their sex-matched controls. Among cocaine users, individuals who preferred insufflating ("snorting") cocaine had greater Thrill-seeking scores and lower Impulsive Action scores than individuals who preferred smoking cocaine. Individuals who insufflate cocaine also spent less money on cocaine. CONCLUSIONS Greater Impulsive Action scores in males and Thrill-seeking scores in females were associated with cocaine use relative to controls.
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Affiliation(s)
- Richard W. Foltin
- Division on Substance Use Disorders, New York State Psychiatric Institute and Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons and Columbia University Irving Medical Center, 1051 Riverside Drive, New York, NY 10032, U.S.A
| | - Rachel Luba
- Division on Substance Use Disorders, New York State Psychiatric Institute and Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons and Columbia University Irving Medical Center, 1051 Riverside Drive, New York, NY 10032, U.S.A
| | - Yuan Chen
- Division on Biostatistics, Mailman School of Public Health, Columbia University, 722 W 168th St, New York, NY 10032, U.S.A
| | - Yuanjia Wang
- Division on Biostatistics, Mailman School of Public Health, Columbia University, 722 W 168th St, New York, NY 10032, U.S.A
| | - Suzette M. Evans
- Division on Substance Use Disorders, New York State Psychiatric Institute and Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons and Columbia University Irving Medical Center, 1051 Riverside Drive, New York, NY 10032, U.S.A
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13
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Papamalis FE, Dritsas I, Knight K. The Role of Personality Functioning on Early Drop out in Outpatient Substance Misuse Treatment. Subst Use Misuse 2021; 56:1119-1136. [PMID: 33881361 DOI: 10.1080/10826084.2021.1908358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Treatment initiation is a major factor contributing to positive outcomes, but the supporting literature remains limited. It is difficult to draw conclusions regarding predictors of dropout, and there is a need to target clients' major early attrition vulnerabilities. Despite empirically validated models for assessing personality, little is known about its role in the treatment process. Studies that have been conducted in this area have focused mainly on stable personality traits and provide conflicting evidence. Aims: The aim of this study is to examine to what extent service users' personality functioning are potential determinants of early drop out. Methodology: A cross-sectional multi-site design examined the therapy process in a naturalistic setting in 5 outpatient preparation treatment centers with 210 service users. The current study adopts a contemporary dimensional-based framework, similar to the Alternative Model of Personality Disorder of the DSM-V and examines the role of characteristic adaptations (SIPP-118) on early drop out (CEST-Intake). Findings: From the broad spectrum of personality traits, only Depression remained significant predictor of drop out. Higher dysfunctional levels in Social Concordance [OR] = 1.85, Wald =19.87, p =.002, 95% CI [1.1, 1.9] as well as the facets Aggression Regulation, Respect and Purposefulness were also predictors of early drop out, while Treatment Readiness and Desire for Help accounted for a significant amount of variance. Conclusions: These findings extend our knowledge of the predictive role of characteristic adaptations in treatment and suggest it may be important to assess these individual differences early on and to design personalized-informed interventions.
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Affiliation(s)
- Fivos E Papamalis
- Psychology Department, University of Derby, SENSE - Centre for Translational Research on Public Health & Social Policy, Thessaloniki, Greece
| | - Ioannis Dritsas
- Greece Department of Education Sciences and Social Work, Clinical Observatory for the Diagnostic Evaluation of Addictions and Risky Behaviours in Adolescence, University Of Patras, Patras, Patra, Greece
| | - Kevin Knight
- Institute of Behavioral Research, Texas Christian University, Fort Worth, TX, USA
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14
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Blonigen DM, Macia KS. Personality change during substance use disorder treatment is associated with improvements in abstinence self-efficacy post-treatment among U.S. military veterans. J Subst Abuse Treat 2020; 120:108187. [PMID: 33298306 DOI: 10.1016/j.jsat.2020.108187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 10/01/2020] [Accepted: 10/27/2020] [Indexed: 10/23/2022]
Abstract
Prior research suggests that personality traits change during substance use disorder (SUD) treatment. However, the extent to which changes in traits during SUD treatment are associated with subsequent improvements in treatment outcomes remains untested. Among U.S. military veterans (n = 200) enrolled in SUD residential treatment, we examined whether changes in the personality factors of positive emotionality (PEM), negative emotionality (NEM), and constraint (CON) during treatment were associated with subsequent changes in abstinence self-efficacy and SUD symptoms. We analyzed data at treatment entry, discharge, and 12-months post-discharge via univariate and bivariate latent change score models. During treatment, PEM, CON, and abstinence self-efficacy increased, while NEM decreased, on average. Changes in NEM and CON were largely sustained, whereas PEM and abstinence self-efficacy significantly decreased post-treatment. SUD symptoms decreased from pre- to post-treatment. In bivariate models, higher levels of NEM at baseline were associated with less improvement in both abstinence self-efficacy during treatment and SUD symptoms pre- to post-treatment. Higher levels of CON at baseline were associated with greater improvement in SUD symptoms pre- to post-treatment, and increases in CON during treatment were associated with greater retention of treatment gains in abstinence self-efficacy post-treatment. Greater improvements in CON during treatment were also associated with greater improvements in SUD symptoms pre- to post-treatment in unadjusted (p = 0.041) but not adjusted models (p = 0.089). Our findings suggest that personality changes marked by improvements in impulse control over the course of SUD treatment may be linked to subsequent improvements in treatment outcomes and may have value as a proximal treatment target among SUD patients during residential care.
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Affiliation(s)
- Daniel M Blonigen
- HSR&D Center for Innovation to Implementation, VA Palo Alto Health Care System, 795 Willow Road (152-MPD), Menlo Park, CA 94025, USA; Stanford University School of Medicine, 291 Campus Drive, Stanford, CA 94305, USA; Palo Alto University, 1791 Arastradero Road, Palo Alto, CA 94304, USA.
| | - Kathryn S Macia
- Stanford University School of Medicine, 291 Campus Drive, Stanford, CA 94305, USA; National Center for PTSD, VA Palo Alto Health Care System, 795 Willow Road (334-NCPTSD), Menlo Park, CA 94025, USA
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15
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Czermainski FR, Lopes FM, Ornell F, Pinto Guimarães LS, Von Diemen L, Kessler F, Martins de Almeida RM. Concurrent Use of Alcohol and Crack Cocaine is Associated with High Levels of Anger and Liability to Aggression. Subst Use Misuse 2020; 55:1660-1666. [PMID: 32519554 DOI: 10.1080/10826084.2020.1756850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Objective: To evaluate aggressiveness in individuals receiving treatment for alcohol and crack cocaine use, both alone and in combination with one another, in order to compare them to control subjects with no history of drug problems, using the State-Trait Anger Expression Inventory. Method: The sample consisted of 67 men aged 18-65 years, divided into four groups: alcohol (n = 13); crack cocaine (n = 25); crack cocaine + alcohol (n = 16) and controls (n = 13). Participants completed the following instruments: socioeconomic questionnaire, the Wechsler Abbreviated Scale of Intelligence and the State-Trait Anger Expression Inventory. Results: Individuals with alcohol dependence alone, or comorbid with crack cocaine dependence, showed elevated levels of aggression and anger, though these varied according to the drug of abuse. Concurrent users of alcohol and crack cocaine had the highest levels of aggression, followed by isolated alcohol users, suggesting an association between alcohol consumption and aggression. Conclusion: The present findings suggest that alcohol and aggression levels may be associated with violent behavior. Concurrent use of alcohol and crack cocaine was related to higher levels of aggression, which may be associated with more severe alterations in behavior and impulse control.
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Affiliation(s)
| | | | - Felipe Ornell
- Instituto de Psicologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Lisia Von Diemen
- Center for Drug and Alcohol Research, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Felix Kessler
- Psychiatry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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16
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DeVito EE, Carroll KM, Babuscio T, Nich C, Sofuoglu M. Randomized placebo-controlled trial of galantamine in individuals with cocaine use disorder. J Subst Abuse Treat 2019; 107:29-37. [PMID: 31757262 PMCID: PMC6918721 DOI: 10.1016/j.jsat.2019.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 08/10/2019] [Accepted: 08/12/2019] [Indexed: 12/14/2022]
Abstract
No pharmacotherapies are approved for the treatment of cocaine use disorder (CUD). Galantamine, a cholinesterase inhibitor, has shown initial promise for cocaine use reduction in methadone-maintained individuals with CUD and cognitive improvement in abstinent individuals with past CUD. However, galantamine has not previously tested in individuals with current CUD and no comorbid opioid use disorder or methadone maintenance. The goal of this 13-week, double-blind, placebo-controlled, randomized controlled trial was to test the efficacy of galantamine (8 mg or 16 mg/day; extended release (ER)) for reducing cocaine use and improving cognitive function in individuals with cocaine use disorder (CUD). Ninety-three treatment-seeking cocaine users were randomized to placebo (n = 32), 8 mg/day galantamine (n = 31) or 16 mg/day galantamine (n = 30). The medication was well-tolerated with minimal reports of side-effects. However, there were no significant treatment group differences in cocaine use outcomes (as measured by self-report or urines). The 16 mg galantamine group had a greater improvement in working memory capacity (Backwards Digit Span), but there were no other significant treatment group differences on key cognitive outcomes. These findings did not provide support for the efficacy of galantamine as a treatment for cocaine use in this sample of individuals with CUD.
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Affiliation(s)
- Elise E DeVito
- Yale University, School of Medicine, Department of Psychiatry, New Haven, CT, United States of America
| | - Kathleen M Carroll
- Yale University, School of Medicine, Department of Psychiatry, New Haven, CT, United States of America
| | - Theresa Babuscio
- Yale University, School of Medicine, Department of Psychiatry, New Haven, CT, United States of America
| | - Charla Nich
- Yale University, School of Medicine, Department of Psychiatry, New Haven, CT, United States of America
| | - Mehmet Sofuoglu
- Yale University, School of Medicine, Department of Psychiatry, New Haven, CT, United States of America; VA Connecticut Healthcare System, West Haven, CT, United States of America.
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17
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Kampman KM. The treatment of cocaine use disorder. SCIENCE ADVANCES 2019; 5:eaax1532. [PMID: 31663022 PMCID: PMC6795516 DOI: 10.1126/sciadv.aax1532] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 09/25/2019] [Indexed: 06/01/2023]
Abstract
Cocaine use continues to be a serious worldwide public health problem. Cocaine abuse is associated with substantial morbidity and mortality. Cocaine overdose deaths are increasing in the United States and, in certain populations, outnumber heroin and opiate overdose deaths. Psychosocial treatments remain the treatments of choice for cocaine use disorder (CUD), with standard approaches including contingency management and cognitive behavioral therapy. However, the effect sizes of these treatments are not large, and they are not effective for most patients. Consequently, investigators have sought to develop pharmacological agents to augment the efficacy of psychosocial treatments. Despite these efforts, no medications have yet been proven to be safe and effective for the treatment of CUD. The most promising pharmacological strategies for CUD treatment thus far include the use of dopamine agonists, such as long-acting amphetamine and modafinil or glutamatergic and GABAergic agents such as topiramate. Combination drugs may be especially promising.
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Affiliation(s)
- Kyle M Kampman
- Department of Psychiatry, Perelman School of Medicine, Center for Studies of Addiction, University of Pennsylvania, 3535 Market Street, Suite 500, Philadelphia, PA 19104, USA.
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18
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Suchting R, Yoon JH, Miguel GGS, Green CE, Weaver MF, Vincent JN, Fries GR, Schmitz JM, Lane SD. Preliminary examination of the orexin system on relapse-related factors in cocaine use disorder. Brain Res 2019; 1731:146359. [PMID: 31374218 DOI: 10.1016/j.brainres.2019.146359] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/26/2019] [Accepted: 07/29/2019] [Indexed: 12/14/2022]
Abstract
RATIONALE Current evidence and literature reviews provide a strong justification for examining the orexin receptor (OXR) system as a therapeutic target in substance use disorders, including cocaine and other psychostimulants. OBJECTIVES In this preliminary, proof-of-concept examination of orexin modulation in humans with cocaine use disorder, we measured changes in domains tied to relapse: stress, sleep, cue reactivity, and inhibitory control. Additionally, mood symptoms (anxiety, depression), medication compliance, and side effects were assessed. METHODS Twenty non-treatment seeking subjects with cocaine use disorder (CUD) received either the OX1R / OX2R antagonist suvorexant PO or placebo at 10 PM daily for two weeks (10 mg week 1, 20 mg week 2). Using psychometrics, smart-watch actigraphy, a cold-pressor stress challenge, and eye-tracking technology, the following domains were examined: sleep, stress/anxiety, cue-reactivity (attentional bias, craving), and inhibitory control. Psychometric data were collected every M/W/F (7 time points). Laboratory data were collected weekly (3 time points). RESULTS Bayesian and frequentist generalized linear models were employed in parallel to examine the effects of suvorexant compared to placebo, with a Bayesian posterior probability threshold >80% as evidence of a signal for suvorexant. Notable results favoring suvorexant over placebo included fewer total anti-saccade errors, improved sleep actigraphy (sleep/awake periods), pre/post cold-pressor change in heart rate and salivary cortisol (all posterior probabilities >94%), and craving (posterior probability >87%). CONCLUSIONS Initial but restricted evidence is provided supporting the orexin system as a modulator of relapse-related processes in cocaine use disorder. Baseline differences in the main outcome variables were not experimentally controlled and differences in craving were observed at baseline. This, in combination with a limited sample size, constrain the nature of the project. The results may serve to inform more comprehensive future research.
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Affiliation(s)
- Robert Suchting
- Department of Psychiatry and Behavioral Sciences, UTHealth McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA.
| | - Jin H Yoon
- Department of Psychiatry and Behavioral Sciences, UTHealth McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Guadalupe G San Miguel
- Department of Psychiatry and Behavioral Sciences, UTHealth McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Charles E Green
- Department of Psychiatry and Behavioral Sciences, UTHealth McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA; Department of Pediatrics - Center for Evidence Based Medicine, UTHealth McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Michael F Weaver
- Department of Psychiatry and Behavioral Sciences, UTHealth McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Jessica N Vincent
- Department of Psychiatry and Behavioral Sciences, UTHealth McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Gabriel R Fries
- Department of Psychiatry and Behavioral Sciences, UTHealth McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Joy M Schmitz
- Department of Psychiatry and Behavioral Sciences, UTHealth McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Scott D Lane
- Department of Psychiatry and Behavioral Sciences, UTHealth McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, USA; MD Anderson - UTHealth Graduate School of Biomedical Sciences, Program in Neuroscience, University of Texas Health Science Center at Houston, Houston, TX, USA
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19
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Abstract
Background: Treatment with methadone is effective in reducing heroin use, HIV risk, and death; however, not all patients respond to treatment. Better outcomes may emerge with personalized treatment based on factors that influence treatment courses. Objectives: To investigate psychosocial variables contributing to treatment response, using a comprehensive definition of treatment response. Methods: Seventy participants seeking treatment for heroin and cocaine addiction completed up to 40 weeks of daily methadone. At week 22, we administered a semi-structured interview for DSM-IV symptoms. We defined opioid treatment responders as people still enrolled at 22 weeks, not meeting past 30-day criteria for DSM-IV opioid abuse or dependence or DSM-5 opioid use disorder, and providing ≥75% opioid-negative urine samples in the 30 days prior to week 22. The same criteria were applied to assess cocaine treatment response. Results: Sample was 71% male, 41% White, and averaged 39.4 ± 7.9 years old. Opioid treatment response was more likely in participants who had been employed over the past 3 years (OR: 8.1, 95% CI: 1.2-55) and less likely in those who spent more time on hobbies (OR: 0.45, 95% CI: 0.23-0.88). Cocaine treatment response was more likely in participants who had a good relationship with their father (OR: 5.3, 95% CI: 1.2-24) and less likely if positive for hepatitis C (OR: 0.15, 95% CI: 0.03-0.75). Conclusions: Pretreatment characteristics differentially predict treatment response for heroin and cocaine use. Similar research in diverse patient groups may aid in the development of personalized treatment combining biologic treatment with targeted psychosocial interventions.
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Affiliation(s)
| | - David H. Epstein
- National Institute on Drug Abuse Intramural Research Program, Baltimore, MD, USA 21224
| | - Kenzie L. Preston
- National Institute on Drug Abuse Intramural Research Program, Baltimore, MD, USA 21224
| | - Karran A. Phillips
- National Institute on Drug Abuse Intramural Research Program, Baltimore, MD, USA 21224
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20
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Moeller SJ, Abi-Dargham A. Letter to the Editor: A Novel Therapeutic for Opioid Use Disorder Targeting the Cholinergic System. Am J Addict 2019; 28:235-237. [PMID: 31165540 DOI: 10.1111/ajad.12906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 04/23/2019] [Indexed: 11/30/2022] Open
Affiliation(s)
- Scott J Moeller
- Department of Psychiatry, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York
| | - Anissa Abi-Dargham
- Department of Psychiatry, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York
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21
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Mahoney JJ. Cognitive dysfunction in individuals with cocaine use disorder: Potential moderating factors and pharmacological treatments. Exp Clin Psychopharmacol 2019; 27:203-214. [PMID: 30556731 PMCID: PMC6538444 DOI: 10.1037/pha0000245] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
It is well-documented in the literature that individuals repeatedly exposed to cocaine exhibit cognitive impairment and that cognitive dysfunction is a risk factor for poor treatment outcomes in those with cocaine use disorder (CUD). Specific deficits related to attention, episodic memory, working memory, and executive functioning are the most common deficits noted in this population. Given that cognitive impairment is a risk factor for poor treatment outcomes in those with CUD, identifying possible moderating factors contributing to and/or exacerbating cocaine-related cognitive deficits is of great importance. Some of these factors may include premorbid intellectual functioning, cocaine use patterns, polysubstance use, comorbid emotional symptoms, and sleep dysfunction. It is plausible that by identifying moderating factors impacting cognition, behavioral interventions can then be modified accordingly and/or treatment regimens can be augmented with pharmacological interventions (e.g., cognitive enhancing agents), leading to a reduction in treatment attrition and improved treatment outcomes. The currently available treatments for CUD are mainly behavioral with variable efficacy, and even though there have been great preclinical and clinical research efforts focused on medication development for CUD, there are currently no Food and Drug Administration-approved medications for CUD. A description of some of the several potential moderating factors, along with some pharmacological treatments which have been shown to ameliorate, at least to some extent, cognitive dysfunction in those with CUD are discussed. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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22
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Gómez-Bujedo J, Domínguez-Salas S, Pérez-Moreno PJ, Moraleda-Barreno E, Lozano OM. Reliability and validity evidence of a new interpretation bias task in patients diagnosed with drug use disorder: a preliminary study of the Word Association Task for Drug Use Disorder (WAT-DUD). THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2019; 45:365-376. [DOI: 10.1080/00952990.2018.1559848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Jesús Gómez-Bujedo
- Department of Clinical and Experimental Psychology, University of Huelva, Huelva, Spain
| | - Sara Domínguez-Salas
- Department of Clinical and Experimental Psychology, University of Huelva, Huelva, Spain
| | - Pedro Juan Pérez-Moreno
- Department of Clinical and Experimental Psychology, University of Huelva, Huelva, Spain
- Research Center for Natural Resources, Health and the Environment, University of Huelva, Huelva, Spain
| | - Enrique Moraleda-Barreno
- Department of Clinical and Experimental Psychology, University of Huelva, Huelva, Spain
- Research Center for Natural Resources, Health and the Environment, University of Huelva, Huelva, Spain
| | - Oscar M. Lozano
- Department of Clinical and Experimental Psychology, University of Huelva, Huelva, Spain
- Research Center for Natural Resources, Health and the Environment, University of Huelva, Huelva, Spain
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23
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Suchting R, Vincent JN, Lane SD, Green CE, Schmitz JM, Wardle MC. Using a data science approach to predict cocaine use frequency from depressive symptoms. Drug Alcohol Depend 2019; 194:310-317. [PMID: 30472571 PMCID: PMC6317336 DOI: 10.1016/j.drugalcdep.2018.10.029] [Citation(s) in RCA: 5] [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: 04/16/2018] [Revised: 10/25/2018] [Accepted: 10/26/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Depressive symptoms may contribute to cocaine use. However, tests of the relationship between depression and severity of cocaine use have produced mixed results, possibly due to heterogeneity in individual symptoms of depression. Our goal was to establish which symptoms of depression are most strongly related to frequency of cocaine use (one aspect of severity) in a large sample of current cocaine users. We utilized generalized additive modeling to provide data-driven exploration of the relationships between depressive symptoms and cocaine use, including examination of non-linearity. We hypothesized that symptoms related to anhedonia would demonstrate the strongest relationship to cocaine use. METHOD 772 individuals screened for cocaine use disorder treatment studies. To measure depressive symptoms, we used the items of the Beck Depression Inventory, 2nd Edition. Cocaine use frequency was measured as proportion of self-reported days of cocaine use over the last 30 days using the Addiction Severity Index. RESULTS Models identified 18 significant predictors of past-30-day cocaine use. The strongest predictors were Crying, Pessimism, Changes in Appetite, Indecisiveness, and Loss of Interest. Noteworthy effect sizes were found for specific response options on Suicidal Thoughts, Worthlessness, Agitation, Concentration Difficulty, Tiredness, and Self Dislike items. CONCLUSIONS The strongest predictors did not conform to previously hypothesized "subtypes" of depression. Non-linear relationships between items and use were typical, suggesting BDI-II items may not be monotonically increasing ordinal measures with respect to predicting cocaine use. Qualitative analysis of strongly predictive response options suggested emotional volatility and disregard for the future as important predictors of use.
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Affiliation(s)
- Robert Suchting
- Department of Psychiatry and Behavioral Sciences, McGovern Medical School at The University of Texas Health Science Center at Houston (UTHealth), 1941 East Road, Houston, TX, United States
| | - Jessica N Vincent
- Department of Psychiatry and Behavioral Sciences, McGovern Medical School at The University of Texas Health Science Center at Houston (UTHealth), 1941 East Road, Houston, TX, United States
| | - Scott D Lane
- Department of Psychiatry and Behavioral Sciences, McGovern Medical School at The University of Texas Health Science Center at Houston (UTHealth), 1941 East Road, Houston, TX, United States; UTHealth Harris County Psychiatric Center, Houston, TX, United States
| | - Charles E Green
- Department of Pediatrics, McGovern Medical School at The University of Texas Health Science Center at Houston (UTHealth), 6431 Fannin St., MSB 3.020, Houston, TX, United States
| | - Joy M Schmitz
- Department of Psychiatry and Behavioral Sciences, McGovern Medical School at The University of Texas Health Science Center at Houston (UTHealth), 1941 East Road, Houston, TX, United States
| | - Margaret C Wardle
- Department of Psychiatry and Behavioral Sciences, McGovern Medical School at The University of Texas Health Science Center at Houston (UTHealth), 1941 East Road, Houston, TX, United States; Department of Psychology, University of Illinois at Chicago, Behavioral Sciences Building, 1007 W. Harrison St., Chicago, IL, United States.
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Walker R, Northrup TF, Tillitski J, Bernstein I, Greer TL, Trivedi MH. The Stimulant Selective Severity Assessment: A replication and exploratory extension of the Cocaine Selective Severity Assessment. Subst Use Misuse 2019; 54:351-361. [PMID: 30657406 PMCID: PMC6438747 DOI: 10.1080/10826084.2018.1467453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND Cocaine and methamphetamine have similar withdrawal symptoms and many individuals concurrently use both substances; however, no measures concurrently assess withdrawal from multiple stimulants. OBJECTIVES This study's aim was to explore the Stimulant Selective Severity Assessment (SSSA), a modified version of the Cocaine Selective Severity Assessment (CSSA), in a sample of stimulant users to determine if it can assess withdrawal symptoms in users of one or more stimulants. METHODS Baseline data were analyzed from the STimulant Reduction Intervention using Dosed Exercise trial, a multisite randomized clinical trial that evaluated exercise versus health education on drug use outcomes in individuals with stimulant use disorders. Data were analyzed for internal consistency, construct validity, and scale dimensionality. RESULTS Internal consistency for the full sample was good (α = 0.81; N = 302), with similar alphas in Cocaine (0.81; n = 177) and Cocaine/Other Stimulant (0.82; n = 92) groups, but with much lower alpha for the group without cocaine use (Other Stimulant, i.e., primarily methamphetamine, α = 0.66; n = 32). Support for construct validity was evidenced by significant positive correlations (r = 0.17 to 0.67) with measures of stimulant craving, depressive symptoms, and pain. Four factors were revealed. Conclusions/Importance: The Stimulant Selective Severity Assessment is a new measure that can be used to assess withdrawal symptoms in users of cocaine or cocaine plus methamphetamine, but it should not be administered to users of methamphetamine only.
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Affiliation(s)
- Robrina Walker
- a Department of Psychiatry , University of Texas Southwestern Medical Center , Dallas , Texas , USA
| | - Thomas F Northrup
- b Department of Family and Community Medicine , The University of Texas Health Science Center at Houston, McGovern Medical School , Houston , Texas , USA
| | - John Tillitski
- a Department of Psychiatry , University of Texas Southwestern Medical Center , Dallas , Texas , USA
| | - Ira Bernstein
- c Department of Clinical Sciences , University of Texas Southwestern Medical Center , Dallas , Texas , USA
| | - Tracy L Greer
- a Department of Psychiatry , University of Texas Southwestern Medical Center , Dallas , Texas , USA
| | - Madhukar H Trivedi
- a Department of Psychiatry , University of Texas Southwestern Medical Center , Dallas , Texas , USA
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D'Souza JM, Wardle M, Green CE, Lane SD, Schmitz JM, Vujanovic AA. Resting Heart Rate Variability: Exploring Associations With Symptom Severity in Adults With Substance Use Disorders and Posttraumatic Stress. J Dual Diagn 2019; 15:2-7. [PMID: 30418104 PMCID: PMC6511322 DOI: 10.1080/15504263.2018.1526431] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Objective: Substance use disorders and posttraumatic stress symptoms are commonly comorbid. Previous studies have established that those with substance use disorders or posttraumatic stress disorder (PTSD) have lower high frequency-heart rate variability (HF-HRV) compared to controls, suggesting that low HF-HRV may be a biomarker of a common physiological mechanism underlying both disorders. We evaluated HF-HRV as a potential biomarker of a common underlying process by testing whether lower HF-HRV related to greater severity of substance use and PTSD symptoms in individuals with both substance use disorders and at least four symptoms of PTSD. Methods: HF-HRV was measured in 49 adults with substance use disorders and at least four symptoms of PTSD. We performed a series of regressions controlling for age to test whether low HF-HRV was associated with greater substance use disorder and PTSD symptom severity. Substance use disorder symptoms were measured by the Addiction Severity Index and PTSD symptoms were measured by the Clinician-Administered PTSD Scale and the PTSD Checklist. Results: After controlling for age, low resting HF-HRV was significantly associated with drug and alcohol symptom severity but not PTSD symptom severity. Conclusions: HF-HRV may be more sensitive to the severity of drug and alcohol use rather than PTSD. Findings may suggest that in PTSD populations, HF-HRV may primarily index comorbid substance use disorder symptoms. HF-HRV could serve as an objective measure of substance use severity and should be further investigated as a predictor of outcomes in treatment for substance use disorders.
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Affiliation(s)
- Johann M D'Souza
- a Department of Psychology , University of Houston , Houston , Texas , USA
| | - Margaret Wardle
- b Department of Psychiatry and Behavioral Sciences , McGovern Medical School, University of Texas Health Science Center at Houston , Houston , Texas , USA.,c Department of Psychology , University of Illinois at Chicago , Chicago , Illinois , USA
| | - Charles E Green
- b Department of Psychiatry and Behavioral Sciences , McGovern Medical School, University of Texas Health Science Center at Houston , Houston , Texas , USA
| | - Scott D Lane
- b Department of Psychiatry and Behavioral Sciences , McGovern Medical School, University of Texas Health Science Center at Houston , Houston , Texas , USA
| | - Joy M Schmitz
- b Department of Psychiatry and Behavioral Sciences , McGovern Medical School, University of Texas Health Science Center at Houston , Houston , Texas , USA
| | - Anka A Vujanovic
- a Department of Psychology , University of Houston , Houston , Texas , USA
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Crits-Christoph P, Wadden S, Gaines A, Rieger A, Gallop R, McKay JR, Gibbons MBC. Symptoms of anhedonia, not depression, predict the outcome of treatment of cocaine dependence. J Subst Abuse Treat 2018; 92:46-50. [PMID: 30032944 PMCID: PMC6502233 DOI: 10.1016/j.jsat.2018.06.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 05/18/2018] [Accepted: 06/19/2018] [Indexed: 01/09/2023]
Abstract
The purpose of this paper is to reanalyze data from two studies to determine if anhedonia specifically, rather than depression overall, predicts treatment outcome for patients with cocaine use disorders. Measures of baseline anhedonia symptoms were created using anhedonia items from the Beck Depression Inventory (BDI) to re-examine National Institute on Drug Abuse Cocaine Collaborative Treatment study data (Crits-Christoph et al., 1999) and the contingency management group from the McKay et al. (2010) trial. Baseline anhedonia was used to predict cocaine abstinence rates across the treatment period in both studies. Anhedonia was a significant predictor of cocaine abstinence, even when overall depression scores excluding anhedonia were included in the models. The development of treatments to target individuals with cocaine use disorder who have symptoms of anhedonia has the potential to improve overall outcomes for those with this disorder.
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Affiliation(s)
- Paul Crits-Christoph
- Department of Psychiatry, (1)Perelman School of Medicine, University of Pennsylvania, 3535 Market St., 6th Floor, Philadelphia, PA 19104, United States of America.
| | - Steven Wadden
- Department of Psychiatry, (1)Perelman School of Medicine, University of Pennsylvania, 3535 Market St., 6th Floor, Philadelphia, PA 19104, United States of America
| | - Averi Gaines
- Department of Psychiatry, (1)Perelman School of Medicine, University of Pennsylvania, 3535 Market St., 6th Floor, Philadelphia, PA 19104, United States of America
| | - Agnes Rieger
- Department of Psychiatry, (1)Perelman School of Medicine, University of Pennsylvania, 3535 Market St., 6th Floor, Philadelphia, PA 19104, United States of America
| | - Robert Gallop
- Department of Mathematics, West Chester University, 25 University Avenue, Room 180, West Chester, PA 19383, United States of America
| | - James R McKay
- Department of Psychiatry, (1)Perelman School of Medicine, University of Pennsylvania, 3535 Market St., 6th Floor, Philadelphia, PA 19104, United States of America
| | - Mary Beth Connolly Gibbons
- Department of Psychiatry, (1)Perelman School of Medicine, University of Pennsylvania, 3535 Market St., 6th Floor, Philadelphia, PA 19104, United States of America
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MacLean RR, Sofuoglu M. Stimulants and Mood Disorders. CURRENT ADDICTION REPORTS 2018. [DOI: 10.1007/s40429-018-0212-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Bolloni C, Badas P, Corona G, Diana M. Transcranial magnetic stimulation for the treatment of cocaine addiction: evidence to date. Subst Abuse Rehabil 2018; 9:11-21. [PMID: 29849473 PMCID: PMC5967377 DOI: 10.2147/sar.s161206] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
There is a common consensus in considering substance-use disorders (SUDs) a devastating chronic illness with social and psychological impact. Despite significant progress in understanding the neurobiology of SUDs, therapeutic advances have proceeded at a slower pace, in particular for cocaine-use disorder (CUD). Transcranial magnetic stimulation (TMS) is gaining support as a safe and cost-effective tool in the treatment of SUDs. In this review, we consider human studies that have investigated the efficacy of TMS in achieving therapeutic benefits in treating CUD. All studies conducted to date that have evaluated the therapeutic effect of TMS in CUD are included. We focus on the protocol of stimulation applied, emphasizing the neurophysiological effects of coils employed related to outcomes. Moreover, we examine the subjective and objective measurements used to assess the therapeutic effects along the timeline considered. The revision of scientific literatures underscores the therapeutic potential of TMS in treating CUD. However, the variability in stimulation protocols applied and the lack of methodological control do not allow us to draw firm conclusions, and further studies are warranted to examine the interaction between TMS patterns of stimulation relative to clinical outcomes in depth.
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Affiliation(s)
- Corinna Bolloni
- Laboratory of Cognitive Neuroscience, G Minardi Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Paola Badas
- Laboratory of Cognitive Neuroscience, G Minardi Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Giorgio Corona
- Laboratory of Cognitive Neuroscience, G Minardi Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Marco Diana
- Laboratory of Cognitive Neuroscience, G Minardi Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
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Gür F, Can Gür G, Okanlı A. The Effect of the Cognitive-behavioral Model-based Psychoeducation and Exercise Intervention on Quality of Life in Alcohol Use Disorder. Arch Psychiatr Nurs 2017; 31:541-548. [PMID: 29179818 DOI: 10.1016/j.apnu.2017.07.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 06/12/2017] [Accepted: 07/15/2017] [Indexed: 10/19/2022]
Abstract
PURPOSE The aim of the study was to assess the effect of the cognitive behavior model (CBM)-based psychoeducation and exercise intervention on quality of life (QoL) in alcohol use disorder (AUD). DESIGN This study was a non-randomized controlled trial. METHODS CBM-based psychoeducation and exercise intervention was applied to the experimental group four times a week for 6weeks; no intervention was applied to the control group. FINDINGS No difference was seen between the points of pretest QoL of the experimental and control groups (p>0.05). However, according to the posttest, the experimental group's mean score of QoL was higher than the control groups (p<0.05). CONCLUSION It was found that CBM-based psychoeducation and exercise intervention applied to individuals with AUD affected the QoL positively. CLINICAL RELEVANCE CBM-based psychoeducation and exercise intervention can be used by nurses to improve AUD individuals' quality of life.
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Affiliation(s)
- Fatih Gür
- University of Karadeniz Technical, Faculty of Sport Science, Trabzon 61000, Turkey.
| | - Ganime Can Gür
- University of Atatürk, Faculty of Health Science, Department of Psychiatric Nursing, Erzurum 25000, Turkey.
| | - Ayşe Okanlı
- University of Medeniyet, Faculty of Health Science, Department of Psychiatric Nursing, İstanbul 34710, Turkey
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Bashiri M, Mancino MJ, Stanick VA, Thostenson J, Kosten TR, Oliveto AH. Moderators of response to sertraline versus placebo among recently abstinent, cocaine dependent patients: A retrospective analysis of two clinical trials. Am J Addict 2017; 26:807-814. [PMID: 29115703 DOI: 10.1111/ajad.12635] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 08/28/2017] [Accepted: 09/26/2017] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Moderators of treatment response to serotonin reuptake inhibitor sertraline (SRT) for cocaine dependence were assessed in two randomized, double blind, placebo-controlled clinical trials. METHODS Generalized estimating equation modeling was performed on data from cocaine-dependent volunteers randomized to receive SRT or placebo (N = 126) who completed >2-week drug-free residential portions of the 12-week trials, in which subsequent outpatient treatment (weeks 3-12) included weekly cognitive behavioral therapy and thrice-weekly supervised urine toxicology. PRIMARY OUTCOME MEASURE Relapse (2 consecutive cocaine-positive or missing urines) following residential stay. Potential moderators included treatment, sex, age, race, depression measures, baseline cocaine urine result, and alcohol dependence diagnosis (ADDx). RESULTS Odds ratios (OR) for relapse showed placebo-treated participants were significantly more likely to relapse than SRT participants. Regardless of treatment condition, participants more likely to relapse were male, and those with lower Hamilton depression ratings, or baseline cocaine-negative urines. Older subjects or those with current ADDx had higher relapse risk than those without ADDx; however, treating older or ADDx participants with SRT reduced cocaine relapse more than placebo. DISCUSSION AND CONCLUSIONS Women or those with more severe cocaine use or depressive symptoms may have fewer cocaine relapses regardless of medication treatment. SRT at 200 mg reduced cocaine relapse more than placebo, especially in older participants or in those with comorbid ADDx. SCIENTIFIC SIGNIFICANCE SRT may be efficacious to support relapse prevention among cocaine-dependent patients in the context of brief residential followed by outpatient treatment, especially in older participants or those with comorbid alcohol/cocaine dependence. (Am J Addict 2017;26:807-814).
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Affiliation(s)
- Maryam Bashiri
- University of Arkansas for Medical Sciences, South Central, Pine Bluff, Arkansas
| | | | | | - Jeff Thostenson
- University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Thomas R Kosten
- Baylor College of Medicine and Michael E DeBakey VA Medical Center, Houston, Texas
| | - Alison H Oliveto
- University of Arkansas for Medical Sciences, Little Rock, Arkansas
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McHugh MJ, Gu H, Yang Y, Adinoff B, Stein EA. Executive control network connectivity strength protects against relapse to cocaine use. Addict Biol 2017; 22:1790-1801. [PMID: 27600492 DOI: 10.1111/adb.12448] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 08/06/2016] [Accepted: 08/09/2016] [Indexed: 11/30/2022]
Abstract
Cocaine addiction is characterized by notoriously high relapse rates following treatment. Recent efforts to address poor treatment outcomes have turned to potential neural markers of relapse risk. Accordingly, the present study examined resting state functional connectivity (rsFC) within and between three large-scale cortical networks: the default mode network (DMN), salience network (SN) and executive control network (ECN). All three have been implicated in relapse-related phenomena including craving, withdrawal and executive control deficits. Forty-five cocaine-dependent individuals and 22 healthy controls completed 6-min resting fMRI scans, The Wisconsin Card Sorting Task, Continuous Performance Test and Cocaine Craving Questionnaire. Cocaine-dependent individuals completed all measures in the final week of a residential treatment episode. Ten control and 9 abstinent cocaine-dependent individuals returned for 3-6 month follow-up scan visits. A group-level independent component analysis was employed to generate ECN, DMN and SN components. For individuals abstinent up to day 30 post-treatment (n = 21), we found enhanced pre-discharge rsFC between the left ECN and both the right ECN and SN as well as between the right ECN and left ECN. Left ECN rsFC effects remained elevated 3-6 months later among abstinent cocaine-dependent individuals. Relapse was related to fewer years of education and more years smoking but no other demographic, clinical, treatment and neurocognitive characteristics. Findings suggest that interhemispheric ECN and ECN-SN connectivity strength may protect against relapse to cocaine use following treatment. These patterns of enhanced interhemispheric network connectivity may reflect a greater capacity to engage executive control processes when faced with opportunities to use cocaine post-treatment.
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Affiliation(s)
- Meredith J. McHugh
- Neuroimaging Research Branch; National Institute on Drug Abuse-Intramural Research Program; Baltimore MD USA
- Orygen, The National Centre of Excellence in Youth Mental Health; Melbourne VIC Australia
- Centre for Youth Mental Health; University of Melbourne; Melbourne VIC Australia
| | - Hong Gu
- Neuroimaging Research Branch; National Institute on Drug Abuse-Intramural Research Program; Baltimore MD USA
| | - Yihong Yang
- Neuroimaging Research Branch; National Institute on Drug Abuse-Intramural Research Program; Baltimore MD USA
| | - Bryon Adinoff
- Department of Psychiatry; UT Southwestern Medical Center; Dallas TX USA
- VA North Texas Health Care System; Dallas TX USA
| | - Elliot A. Stein
- Neuroimaging Research Branch; National Institute on Drug Abuse-Intramural Research Program; Baltimore MD USA
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Nani S, Matsouka O, Tsitskari E, Avgerinos A. The role of physical activity in life happiness of Greek drug abusers participating in a treatment program. SPORT SCIENCES FOR HEALTH 2017. [DOI: 10.1007/s11332-016-0345-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Hanlon CA, Dowdle LT, Jones JL. Biomarkers for Success: Using Neuroimaging to Predict Relapse and Develop Brain Stimulation Treatments for Cocaine-Dependent Individuals. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2016; 129:125-56. [PMID: 27503451 DOI: 10.1016/bs.irn.2016.06.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cocaine dependence is one of the most difficult substance use disorders to treat. While the powerful effects of cocaine use on behavior were documented in the 19th century, it was not until the late 20th century that we realized cocaine use was affecting brain tissue and function. Following a brief introduction (Section 1), this chapter will summarize our current knowledge regarding alterations in neural circuit function typically observed in chronic cocaine users (Section 2) and highlight an emerging body of literature which suggests that pretreatment limbic circuit activity may be a reliable predictor of clinical outcomes among individuals seeking treatment for cocaine (Section 3). Finally, as the field of addiction research strives to translate this neuroimaging data into something clinically meaningful, we will highlight several new brain stimulation approaches which utilize functional brain imaging data to design noninvasive brain stimulation interventions for individuals seeking treatment for substance dependence disorders (Section 4).
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Affiliation(s)
- C A Hanlon
- Medical University of South Carolina, Charleston, SC, United States.
| | - L T Dowdle
- Medical University of South Carolina, Charleston, SC, United States
| | - J L Jones
- Medical University of South Carolina, Charleston, SC, United States
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Salazar-Juárez A, Barbosa-Méndez S, Jurado N, Hernández-Miramontes R, Leff P, Antón B. Mirtazapine prevents induction and expression of cocaine-induced behavioral sensitization in rats. Prog Neuropsychopharmacol Biol Psychiatry 2016; 68:15-24. [PMID: 26922897 DOI: 10.1016/j.pnpbp.2016.02.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 02/03/2016] [Accepted: 02/23/2016] [Indexed: 01/07/2023]
Abstract
Cocaine abuse is a major health problem worldwide. Treatment based on both 5-HT2A/C and 5-HT3 receptor antagonists attenuate not only the effects of cocaine abuse but also the incentive/motivational effect related to cocaine-paired cues. Mirtazapine, an antagonist of postsynaptic α2-adrenergic, 5-HT2A/C and 5HT3 receptors and inverse agonist of the 5-HT2C receptor, has been shown to effectively modify, at the preclinical and clinical levels, various behavioral alterations induced by drugs abuse. Therefore, it is important to assess whether chronic dosing of mirtazapine alters locomotor effects of cocaine as well as induction and expression of cocaine sensitization. Our results reveal that a daily mirtazapine regimen administered for 30days effectively induces a significant attenuation of cocaine-dependent locomotor activity and as well as the induction and expression of behavioral sensitization. These results suggest that mirtazapine may be used as a potentially effective therapy to attenuate induction and expression of cocaine-induced locomotor sensitization.
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Affiliation(s)
- Alberto Salazar-Juárez
- Subdirección de investigaciones Clínicas, Laboratorio de Neurobiología Molecular y Neuroquímica de las Adicciones, Instituto Nacional de Psiquiatría, México DF 14370, Mexico
| | - Susana Barbosa-Méndez
- Subdirección de investigaciones Clínicas, Laboratorio de Neurobiología Molecular y Neuroquímica de las Adicciones, Instituto Nacional de Psiquiatría, México DF 14370, Mexico
| | - Noe Jurado
- Subdirección de investigaciones Clínicas, Laboratorio de Neurobiología Molecular y Neuroquímica de las Adicciones, Instituto Nacional de Psiquiatría, México DF 14370, Mexico
| | - Ricardo Hernández-Miramontes
- Subdirección de investigaciones Clínicas, Laboratorio de Neurobiología Molecular y Neuroquímica de las Adicciones, Instituto Nacional de Psiquiatría, México DF 14370, Mexico
| | - Philippe Leff
- Subdirección de investigaciones Clínicas, Laboratorio de Neurobiología Molecular y Neuroquímica de las Adicciones, Instituto Nacional de Psiquiatría, México DF 14370, Mexico
| | - Benito Antón
- Subdirección de investigaciones Clínicas, Laboratorio de Neurobiología Molecular y Neuroquímica de las Adicciones, Instituto Nacional de Psiquiatría, México DF 14370, Mexico.
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Rodríguez-Cintas L, Daigre C, Grau-López L, Barral C, Pérez-Pazos J, Voltes N, Braquehais MD, Casas M, Roncero C. Impulsivity and addiction severity in cocaine and opioid dependent patients. Addict Behav 2016; 58:104-9. [PMID: 26922157 DOI: 10.1016/j.addbeh.2016.02.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 11/30/2015] [Accepted: 02/14/2016] [Indexed: 02/02/2023]
Abstract
BACKGROUND Impulsivity as a personality trait is a risk factor for the development and maintenance of cocaine and opioid dependence. The objective of this study is to analyze the relationship between impulsivity and addiction severity in cocaine and opioid dependent patients. METHODS A cross-sectional, observational study of 526 patients with lifetime cocaine dependence (CD, n=351), opiate dependence (OD, n=51) and comorbid cocaine and opiate dependence (COD, n=124) to throughout life, according to DSM-IV-TR, was conducted. The sample was recruited at the Addiction and Dual Diagnosis Unit of Vall d'Hebron University Hospital from January 2006 to April 2013. Patients were evaluated with the EuropASI, the SCID I and II interviews, and the Barratt Impulsivity Scale (BIS-11). Descriptive statistics of the main variables (including mean, standard deviation) was performed. Chi square test was used to compare categorical variables and Kruskal-Wallis test to compare continuous variables. Spearman correlation was used to analyze the relationship between EuropASI scores and BIS-11 scores. RESULTS The mean age of the patients was 36.37years±8.08 (19-66). CD and COD were more impulsive and had higher addiction severity than OD. OD patients had worse medical status than CD and COD patients while COD patients had more severe drug use and legal problems than the other groups. However, impulsivity and addiction severity were only positively correlated in CD patients. CONCLUSIONS Impulsivity should be appropriately screened and addressed in cocaine dependents as it may be related to addiction severity.
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Affiliation(s)
- Laia Rodríguez-Cintas
- Addiction and Dual Diagnosis Unit, Department of Psychiatry, Vall d'Hebron University Hospital - Public Health Agency, Barcelona (ASPB), CIBERSAM, Barcelona, Spain; Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Constanza Daigre
- Addiction and Dual Diagnosis Unit, Department of Psychiatry, Vall d'Hebron University Hospital - Public Health Agency, Barcelona (ASPB), CIBERSAM, Barcelona, Spain; Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Lara Grau-López
- Addiction and Dual Diagnosis Unit, Department of Psychiatry, Vall d'Hebron University Hospital - Public Health Agency, Barcelona (ASPB), CIBERSAM, Barcelona, Spain; Department of Psychiatry, Vall d'Hebron University Hospital, CIBERSAM, Barcelona, Spain; Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Carmen Barral
- Addiction and Dual Diagnosis Unit, Department of Psychiatry, Vall d'Hebron University Hospital - Public Health Agency, Barcelona (ASPB), CIBERSAM, Barcelona, Spain; Department of Psychiatry, Vall d'Hebron University Hospital, CIBERSAM, Barcelona, Spain; Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Jesús Pérez-Pazos
- Addiction and Dual Diagnosis Unit, Department of Psychiatry, Vall d'Hebron University Hospital - Public Health Agency, Barcelona (ASPB), CIBERSAM, Barcelona, Spain; Department of Psychiatry, Vall d'Hebron University Hospital, CIBERSAM, Barcelona, Spain
| | - Núria Voltes
- Addiction and Dual Diagnosis Unit, Department of Psychiatry, Vall d'Hebron University Hospital - Public Health Agency, Barcelona (ASPB), CIBERSAM, Barcelona, Spain
| | - María Dolores Braquehais
- Department of Psychiatry, Vall d'Hebron University Hospital, CIBERSAM, Barcelona, Spain; Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Miquel Casas
- Department of Psychiatry, Vall d'Hebron University Hospital, CIBERSAM, Barcelona, Spain; Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Carlos Roncero
- Addiction and Dual Diagnosis Unit, Department of Psychiatry, Vall d'Hebron University Hospital - Public Health Agency, Barcelona (ASPB), CIBERSAM, Barcelona, Spain; Department of Psychiatry, Vall d'Hebron University Hospital, CIBERSAM, Barcelona, Spain; Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
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Reed SC, Evans SM. The effects of oral d-amphetamine on impulsivity in smoked and intranasal cocaine users. Drug Alcohol Depend 2016; 163:141-52. [PMID: 27114203 PMCID: PMC4880502 DOI: 10.1016/j.drugalcdep.2016.04.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 04/07/2016] [Accepted: 04/09/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND Effective treatments for cocaine use disorders remain elusive. Two factors that may be related to treatment failures are route of cocaine used and impulsivity. Smoked cocaine users are more likely to have poorer treatment outcomes compared to intranasal cocaine users. Further, cocaine users are impulsive and impulsivity is associated with poor treatment outcomes. While stimulants are used to treat Attention Deficit Hyperactivity Disorder (ADHD) and attenuate certain cocaine-related behaviors, few studies have comprehensively examined whether stimulants can reduce behavioral impulsivity in cocaine users, and none examined route of cocaine use as a factor. METHODS The effects of immediate release oral d-amphetamine (AMPH) were examined in 34 cocaine users (13 intranasal, 21 smoked). Participants had three separate sessions where they were administered AMPH (0, 10, or 20mg) and completed behavioral measures of impulsivity and risk-taking and subjective measures of abuse liability. RESULTS Smoked cocaine users were more impulsive on the Delayed Memory Task, the GoStop task and the Delay Discounting Task than intranasal cocaine users. Smoked cocaine users also reported more cocaine craving and negative mood than intranasal cocaine users. AMPH produced minimal increases on measures of abuse liability (e.g., Drug Liking). CONCLUSIONS Smoked cocaine users were more impulsive than intranasal cocaine users on measures of impulsivity that had a delay component. Additionally, although AMPH failed to attenuate impulsive responding, there was minimal evidence of abuse liability in cocaine users. These preliminary findings need to be confirmed in larger samples that control for route and duration of cocaine use.
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Affiliation(s)
- Stephanie Collins Reed
- Division on Substance Abuse, New York State Psychiatric Institute and Department of Psychiatry, Columbia University Medical Center, 1051 Riverside Drive, Unit 66, New York, NY 10032 USA.
| | - Suzette M Evans
- Division on Substance Abuse, New York State Psychiatric Institute and Department of Psychiatry, Columbia University Medical Center, 1051 Riverside Drive, Unit 66, New York, NY 10032 USA
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Mayer AR, Wilcox CE, Dodd AB, Klimaj SD, Dekonenko CJ, Claus ED, Bogenschutz M. The efficacy of attention bias modification therapy in cocaine use disorders. THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2016; 42:459-68. [PMID: 27184297 DOI: 10.3109/00952990.2016.1151523] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Attentional bias (i.e., differences in reaction time between drug and neutral cues) has been associated with a variety of drug-use behaviors (e.g., craving, abstinence). Reduction of bias may ultimately reduce use. OBJECTIVE The current study examined whether attentional bias modification therapy (ABMT) reduced the frequency of drug use behaviors in individuals with cocaine use disorder (CUD). METHOD Participants (n = 37) were randomly assigned to ABMT or control therapy, which systematically varied how frequently probes replaced neutral (ABMT = 100%; control therapy = 50%) relative to drug stimuli. Each intervention included 5 training sessions comprising a total of 2640 trials over 4 weeks. Clinical assessments occurred at baseline, post-intervention, 2 weeks and 3 months posttreatment. RESULTS There were no baseline differences between groups on drug-use behaviors or other clinical measures. Contrary to predictions, both groups exhibited slower rather than faster reaction times for cocaine stimuli (p = 0.005) at baseline, with no relationship between bias and baseline measures of drug-use behavior. CONCLUSIONS ABMT was not more effective than our control therapy at reducing attentional bias, reducing craving or changing other drug use behaviors. Current results suggest additional replication studies are needed to assess ABMT's efficacy in reducing drug-use behaviors in CUD.
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Affiliation(s)
- Andrew R Mayer
- a The Mind Research Network/Lovelace Biomedical and Environmental Research Institute , Albuquerque , NM , USA.,b Department of Psychology , University of New Mexico , Albuquerque , NM , USA.,c Neurology Department , University of New Mexico School of Medicine , Albuquerque , NM , USA
| | - Claire E Wilcox
- d Department of Psychiatry , University of New Mexico , Albuquerque , NM , USA
| | - Andrew B Dodd
- a The Mind Research Network/Lovelace Biomedical and Environmental Research Institute , Albuquerque , NM , USA
| | - Stefan D Klimaj
- a The Mind Research Network/Lovelace Biomedical and Environmental Research Institute , Albuquerque , NM , USA
| | | | - Eric D Claus
- a The Mind Research Network/Lovelace Biomedical and Environmental Research Institute , Albuquerque , NM , USA
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Exercise during early, but not late abstinence, attenuates subsequent relapse vulnerability in a rat model. Transl Psychiatry 2016; 6:e792. [PMID: 27115123 PMCID: PMC4872415 DOI: 10.1038/tp.2016.58] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 02/16/2016] [Accepted: 02/22/2016] [Indexed: 12/15/2022] Open
Abstract
Exercise has shown promise as a nonpharmacological intervention for addiction, with evidence suggesting a potential utility for relapse prevention. In humans, exercise as an intervention is typically introduced well after the initiation of abstinence, yet neurobiological data from preclinical studies suggest that it may be more effective if initiated during early abstinence. Here, using rat models, we determined whether the beneficial effects of exercise on relapse vulnerability depends on when exercise is first initiated, during early versus late abstinence. Once rats (n=47) acquired cocaine self-administration, they were given 24-h access to cocaine (1.5 mg/kg per infusion) under a discrete trial procedure (four infusions per hour) for 10 days. The rats then began a 14-day abstinence period in which they had access (2 h per day) to a locked wheel throughout abstinence (sedentary) or an unlocked wheel during early (days 1-7), late (days 8-14) or throughout (days 1-14) abstinence (n=10-14 per group). Cocaine seeking, as assessed under an extinction/cued-induced reinstatement procedure, was examined on day 15 of abstinence. Exercise beginning during early abstinence robustly attenuated subsequent cocaine seeking, and this effect persisted even when exercise ended on the seventh day of abstinence. In contrast, exercise during late abstinence was not effective and these animals displayed high levels of cocaine seeking similar to those observed in sedentary animals. These results indicate that the timing of exercise availability differentially impacts cocaine seeking with results suggesting that exercise during early, but not late, abstinence may provide long-term protection against cocaine relapse.
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You IJ, Wright SR, Garcia-Garcia AL, Tapper AR, Gardner PD, Koob GF, David Leonardo E, Bohn LM, Wee S. 5-HT1A Autoreceptors in the Dorsal Raphe Nucleus Convey Vulnerability to Compulsive Cocaine Seeking. Neuropsychopharmacology 2016; 41:1210-22. [PMID: 26324408 PMCID: PMC4793105 DOI: 10.1038/npp.2015.268] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 08/02/2015] [Accepted: 08/11/2015] [Indexed: 11/09/2022]
Abstract
Cocaine addiction and depression are comorbid disorders. Although it is well recognized that 5-hydroxytryptamine (5-HT; serotonin) plays a central role in depression, our understanding of its role in addiction is notably lacking. The 5-HT system in the brain is carefully controlled by a combined process of regulating 5-HT neuron firing through 5-HT autoreceptors, neurotransmitter release, enzymatic degradation, and reuptake by transporters. This study tests the hypothesis that activation of 5-HT1A autoreceptors, which would lessen 5-HT neuron firing, contributes to cocaine-seeking behaviors. Using 5-HT neuron-specific reduction of 5-HT1A autoreceptor gene expression in mice, we demonstrate that 5-HT1A autoreceptors are necessary for cocaine conditioned place preference. In addition, using designer receptors exclusively activated by designer drugs (DREADDs) technology, we found that stimulation of the serotonergic dorsal raphe nucleus (DRN) afferents to the nucleus accumbens (NAc) abolishes cocaine reward and promotes antidepressive-like behaviors. Finally, using a rat model of compulsive-like cocaine self-administration, we found that inhibition of dorsal raphe 5-HT1A autoreceptors attenuates cocaine self-administration in rats with 6 h extended access, but not 1 h access to the drug. Therefore, our findings suggest an important role for 5-HT1A autoreceptors, and thus DRNNAc 5-HT neuronal activity, in the etiology and vulnerability to cocaine reward and addiction. Moreover, our findings support a strategy for antagonizing 5-HT1A autoreceptors for treating cocaine addiction.
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Affiliation(s)
- In-Jee You
- Department of Psychiatry, Brudnick Neuropsychiatric Research Institute, University of Massachusetts Medical School, Worcester, MA, USA,Department of Molecular Therapeutics, The Scripps Research Institute-Florida, Jupiter, FL, USA,Department of Psychiatry, Brudnick Neuropsychiatric Research Institute, University of Massachusetts Medical School, Worcester, MA 01604, USA, Tel: +1 508 455 4293, Fax: +1 508 455 4281, E-mail:
| | - Sherie R Wright
- Department of Molecular Therapeutics, The Scripps Research Institute-Florida, Jupiter, FL, USA
| | | | - Andrew R Tapper
- Department of Psychiatry, Brudnick Neuropsychiatric Research Institute, University of Massachusetts Medical School, Worcester, MA, USA
| | - Paul D Gardner
- Department of Psychiatry, Brudnick Neuropsychiatric Research Institute, University of Massachusetts Medical School, Worcester, MA, USA
| | - George F Koob
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA,National Institute on Alcohol Abuse and Alcoholism, Rockville, MD, USA
| | - E David Leonardo
- Department of Psychiatry, Columbia University, New York, NY, USA,New York State Psychiatric Institute, New York, NY, USA
| | - Laura M Bohn
- Department of Molecular Therapeutics, The Scripps Research Institute-Florida, Jupiter, FL, USA
| | - Sunmee Wee
- Department of Molecular Therapeutics, The Scripps Research Institute-Florida, Jupiter, FL, USA
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McKernan LC, Nash MR, Gottdiener WH, Anderson SE, Lambert WE, Carr ER. Further evidence of self-medication: personality factors influencing drug choice in substance use disorders. Psychodyn Psychiatry 2016; 43:243-75. [PMID: 26039231 DOI: 10.1521/pdps.2015.43.2.243] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
According to Khantzian's (2003) self-medication hypothesis (SMH), substance dependence is a compensatory means to modulate affects and self-soothe in response to distressing psychological states. Khantzian asserts: (1) Drugs become addicting because they have the power to alleviate, remove, or change human psychological suffering, and (2) There is a considerable degree of specificity in a person's choice of drugs because of unique psychological and physiological effects. The SMH has received criticism for its variable empirical support, particularly in terms of the drug-specificity aspect of Khantzian's hypothesis. We posit that previous empirical examinations of the SMH have been compromised by methodological limitations. Also, more recent findings supporting the SMH have yet to be replicated. Addressing previous limitations to the research, this project tested this theory in a treatment sample of treatment-seeking individuals with substance dependence (N = 304), using more heterogeneous, personality-driven measures that are theory-congruent. Using an algorithm based on medical records, individuals were reliably classified as being addicted to a depressant, stimulant, or opiate by two independent raters. Theory-based a priori predictions were that the three groups would exhibit differences in personality characteristics and emotional-regulation strategies. Specifically, our hypotheses entailed that when compared against each other: (1) Individuals with a central nervous system (CNS) depressant as drug of choice (DOC) will exhibit defenses of repression, over-controlling anger, and emotional inhibition to avoid acknowledging their depression; (2) Individuals with an opiate as DOC will exhibit higher levels of aggression, hostility, depression, and trauma, greater deficits in ego functioning, and externalizing/antisocial behavior connected to their use; and (3) Individuals with a stimulant as DOC will experience anhedonia, paranoia, have a propensity to mania, and display lower levels of emotional inhibition. MANOVAs were used to test three hypotheses regarding drug group differences on the personality variables that were in keeping with the SMH. The MANOVAs for Hypothesis I (Depressant group) and Hypothesis II (Opiate group) were statistically significant. Findings partially support the SMH, particularly in its characterization of personality functioning in those addicted to depressants and opiates.
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Affiliation(s)
- Lindsey Colman McKernan
- 1 Assistant Clinical Professor, Vanderbilt University School of Medicine, Osher Center of Integrative Medicine at Vanderbilt University
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41
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Sofuoglu M, DeVito EE, Waters AJ, Carroll KM. Cognitive Function as a Transdiagnostic Treatment Target in Stimulant Use Disorders. J Dual Diagn 2016; 12:90-106. [PMID: 26828702 PMCID: PMC4837011 DOI: 10.1080/15504263.2016.1146383] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Stimulant use disorder is an important public health problem, with an estimated 2.1 million current users in the United States alone. No pharmacological treatments are approved by the U.S. Food and Drug Administration for stimulant use disorder and behavioral treatments have variable efficacy and limited availability. Most individuals with stimulant use disorder have other comorbidities, most with overlapping symptoms and cognitive impairments. The goal of this article is to present a rationale for cognition as a treatment target in stimulant use disorder and to outline potential treatment approaches. Rates of lifetime comorbid psychiatric disorders among people with stimulant use disorders are estimated at 65% to 73%, with the most common being mood disorders (13% to 64%) and anxiety disorders (21% to 50%), as well as non-substance-induced psychotic disorders (<10%). There are several models of addictive behavior, but the dual process model particularly highlights the relevance of cognitive impairments and biases to the development and maintenance of addiction. This model explains addictive behavior as a balance between automatic processes and executive control, which in turn are related to individual (genetics, comorbid disorders, psychosocial factors) and other (craving, triggers, drug use) factors. Certain cognitive impairments, such as attentional bias and approach bias, are most relevant to automatic processes, while sustained attention, response inhibition, and working memory are primarily related to executive control. These cognitive impairments and biases are also common in disorders frequently comorbid with stimulant use disorder and predict poor treatment retention and clinical outcomes. As such, they may serve as feasible transdiagnostic treatment targets. There are promising pharmacological, cognitive, and behavioral approaches that aim to enhance cognitive function. Pharmacotherapies target cognitive impairments associated with executive control and include cholinesterase inhibitors (e.g., galantamine, rivastigmine) and monoamine transporter inhibitors (e.g., modafinil, methylphenidate). Cognitive behavioral therapy and cognitive rehabilitation also enhance executive control, while cognitive bias modification targets impairments associated with automatic processes. Cognitive enhancement to improve treatment outcomes is a novel and promising strategy, but its clinical value for the treatment of stimulant use disorder, with or without other psychiatric comorbidities, remains to be determined in future studies.
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Affiliation(s)
- Mehmet Sofuoglu
- a Department of Psychiatry , Yale University School of Medicine , West Haven , Connecticut , USA.,b VA Connecticut Healthcare System , West Haven , Connecticut , USA
| | - Elise E DeVito
- a Department of Psychiatry , Yale University School of Medicine , West Haven , Connecticut , USA.,b VA Connecticut Healthcare System , West Haven , Connecticut , USA
| | - Andrew J Waters
- c Department of Medical and Clinical Psychology , Uniformed Services University of the Health Science , Bethesda , Maryland , USA
| | - Kathleen M Carroll
- a Department of Psychiatry , Yale University School of Medicine , West Haven , Connecticut , USA.,b VA Connecticut Healthcare System , West Haven , Connecticut , USA
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42
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Mei S, Xu J, Carroll KM, Potenza MN. Self-reported impulsivity is negatively correlated with amygdalar volumes in cocaine dependence. Psychiatry Res 2015; 233:212-7. [PMID: 26187551 PMCID: PMC4536101 DOI: 10.1016/j.pscychresns.2015.07.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 03/04/2015] [Accepted: 07/07/2015] [Indexed: 01/22/2023]
Abstract
Although impulsivity has been associated with cocaine dependence and other addictive behaviors, the biological factors underlying impulsivity have yet to be precisely determined. This study aimed to examine relationships between impulsivity and volumes of the amygdala and hippocampus in cocaine-dependent and healthy comparison individuals. The Barratt Impulsiveness Scale (BIS-11) was used to assess impulsivity. FreeSurfer was used to assess amygdalar and hippocampal volumes from high-resolution structural magnetic resonance images. Relative to healthy comparison subjects, cocaine-dependent individuals scored higher on all three subscales of BIS-11 but did not differ from healthy comparison subjects in amygdalar or hippocampal volumes. Cocaine-dependent individuals showed significant negative correlations between amygdalar volumes and scores on the BIS-11 Attentional subscale, and this relationship differed significantly from the non-significant relationship in healthy comparison subjects. As individual differences in amygdalar structure may contribute to the high impulsivity observed in cocaine-dependent individuals, the findings suggest that future studies should assess the extent to which therapies that target impulsivity in cocaine dependence may operate through the amygdala or alter its structure or function.
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Affiliation(s)
- Songli Mei
- School of Public Health, Jilin University, Changchun, 130021, China,Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, United States
| | - Jiansong Xu
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, United States.
| | - Kathleen M. Carroll
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, United States
| | - Marc N. Potenza
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, United States,Child Study Center, Yale University School of Medicine, New Haven, CT 06510, United States,Department of Neurobiology, Yale University School of Medicine, New Haven, CT 06510, United States
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43
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Dias NR, Schmitz JM, Rathnayaka N, Red SD, Sereno AB, Moeller FG, Lane SD. Anti-saccade error rates as a measure of attentional bias in cocaine dependent subjects. Behav Brain Res 2015; 292:493-9. [PMID: 26164486 DOI: 10.1016/j.bbr.2015.07.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 06/15/2015] [Accepted: 07/02/2015] [Indexed: 02/07/2023]
Abstract
Cocaine-dependent (CD) subjects show attentional bias toward cocaine-related cues, and this form of cue-reactivity may be predictive of craving and relapse. Attentional bias has previously been assessed by models that present drug-relevant stimuli and measure physiological and behavioral reactivity (often reaction time). Studies of several CNS diseases outside of substance use disorders consistently report anti-saccade deficits, suggesting a compromise in the interplay between higher-order cortical processes in voluntary eye control (i.e., anti-saccades) and reflexive saccades driven more by involuntary midbrain perceptual input (i.e., pro-saccades). Here, we describe a novel attentional-bias task developed by using measurements of saccadic eye movements in the presence of cocaine-specific stimuli, combining previously unique research domains to capitalize on their respective experimental and conceptual strengths. CD subjects (N = 46) and healthy controls (N = 41) were tested on blocks of pro-saccade and anti-saccade trials featuring cocaine and neutral stimuli (pictures). Analyses of eye-movement data indicated (1) greater overall anti-saccade errors in the CD group; (2) greater attentional bias in CD subjects as measured by anti-saccade errors to cocaine-specific (relative to neutral) stimuli; and (3) no differences in pro-saccade error rates. Attentional bias was correlated with scores on the obsessive-compulsive cocaine scale. The results demonstrate increased saliency and differential attentional to cocaine cues by the CD group. The assay provides a sensitive index of saccadic (visual inhibitory) control, a specific index of attentional bias to drug-relevant cues, and preliminary insight into the visual circuitry that may contribute to drug-specific cue reactivity.
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Affiliation(s)
- Nadeeka R Dias
- The University of Texas Health Science Center at Houston, Department of Psychiatry and Behavioral Sciences, 1941 East Rd, Houston, TX 77054, United States.
| | - Joy M Schmitz
- The University of Texas Health Science Center at Houston, Department of Psychiatry and Behavioral Sciences, 1941 East Rd, Houston, TX 77054, United States
| | - Nuvan Rathnayaka
- The University of Texas Health Science Center at Houston, Department of Psychiatry and Behavioral Sciences, 1941 East Rd, Houston, TX 77054, United States
| | - Stuart D Red
- The University of Texas Health Science Center at Houston, Department of Psychiatry and Behavioral Sciences, 1941 East Rd, Houston, TX 77054, United States
| | - Anne B Sereno
- The University of Texas Health Science Center at Houston, Department of Psychiatry and Behavioral Sciences, 1941 East Rd, Houston, TX 77054, United States
| | - F Gerard Moeller
- VCU School of Medicine, Department of Psychiatry, 203 East Cary Street, Suite 202, Richmond, VA 23219, United States
| | - Scott D Lane
- The University of Texas Health Science Center at Houston, Department of Psychiatry and Behavioral Sciences, 1941 East Rd, Houston, TX 77054, United States
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44
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Nuijten M, Blanken P, van den Brink W, Hendriks V. Modafinil in the treatment of crack-cocaine dependence in the Netherlands: Results of an open-label randomised controlled feasibility trial. J Psychopharmacol 2015; 29:678-87. [PMID: 25922424 DOI: 10.1177/0269881115582151] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND Crack-cocaine dependence is a serious disorder with no approved pharmacological treatment. Modafinil is a promising medication with increased cocaine abstinence and reduced craving in some previous studies. In the present study, we examined the acceptance, safety and potential benefits of modafinil as an add-on treatment to cognitive behavioural therapy (CBT) in crack-cocaine dependent patients. METHODS Sixty-five crack-cocaine dependent outpatients participated in an open-label, randomised feasibility trial. Patients were randomised to receive either 12-week individual CBT plus 400 mg/day modafinil or 12-week individual CBT only. The primary outcome measure was CBT treatment retention. Secondary outcomes included modafinil adherence, tolerability and safety, use of cocaine and other substances, cocaine craving, health, social functioning and patient satisfaction. RESULTS Modafinil adherence was low, with only 10% treatment completers. Intent-to-treat analyses showed that modafinil did not improve CBT treatment retention or any of the secondary cocaine-related outcomes. Both groups showed similar, large reductions in cocaine use during the study treatment. Post hoc exploratory analyses within the CBT plus modafinil group showed significantly larger baseline to week 12 reductions in cocaine use days in high (⩾ 8 weeks) modafinil adherent patients. CONCLUSIONS Acceptance and benefits of modafinil were not demonstrated in the present study. Since reduction in cocaine use was observed in high modafinil adherent patients, further research in the treatment of cocaine dependence, in which modafinil adherence is optimised, is warranted.
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Affiliation(s)
- Mascha Nuijten
- Parnassia Addiction Research Centre (PARC, Brijder Addiction Treatment), The Hague, the Netherlands
| | - Peter Blanken
- Parnassia Addiction Research Centre (PARC, Brijder Addiction Treatment), The Hague, the Netherlands
| | - Wim van den Brink
- Amsterdam Institute for Addiction Research, Academic Medical Centre, University of Amsterdam, Amsterdam, the Netherlands
| | - Vincent Hendriks
- Parnassia Addiction Research Centre (PARC, Brijder Addiction Treatment), The Hague, the Netherlands
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Hanlon CA, Dowdle LT, Austelle CW, DeVries W, Mithoefer O, Badran BW, George MS. What goes up, can come down: Novel brain stimulation paradigms may attenuate craving and craving-related neural circuitry in substance dependent individuals. Brain Res 2015; 1628:199-209. [PMID: 25770818 DOI: 10.1016/j.brainres.2015.02.053] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Revised: 01/29/2015] [Accepted: 02/10/2015] [Indexed: 12/17/2022]
Abstract
Vulnerability to drug related cues is one of the leading causes for continued use and relapse among substance dependent individuals. Using drugs in the face of cues may be associated with dysfunction in at least two frontal-striatal neural circuits: (1) elevated activity in medial and ventral areas that govern limbic arousal (including the medial prefrontal cortex (MPFC) and ventral striatum) or (2) depressed activity in dorsal and lateral areas that govern cognitive control (including the dorsolateral prefrontal cortex (DLPFC) and dorsal striatum). Transcranial magnetic stimulation (TMS) is emerging as a promising new tool for the attenuation of craving among multiple substance dependent populations. To date however, nearly all repetitive TMS studies in addiction have focused on amplifying activity in frontal-striatal circuits that govern cognitive control. This manuscript reviews recent work using TMS as a tool to decrease craving for multiple substances and provides a theoretical model for how clinical researchers might approach target and frequency selection for TMS of addiction. To buttress this model, preliminary data from a single-blind, sham-controlled, crossover study of 11 cocaine-dependent individuals is also presented. These results suggest that attenuating MPFC activity through theta burst stimulation decreases activity in the striatum and anterior insula. It is also more likely to attenuate craving than sham TMS. Hence, while many TMS studies are focused on applying LTP-like stimulation to the DLPFC, the MPFC might be a new, efficacious, and treatable target for craving in cocaine dependent individuals.
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Affiliation(s)
- Colleen A Hanlon
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, USA; Department of Neurosciences, Medical University of South Carolina, USA; Center for Biomedical Imaging, Medical University of South Carolina, USA.
| | - Logan T Dowdle
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, USA; Department of Neurosciences, Medical University of South Carolina, USA
| | - Christopher W Austelle
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, USA
| | - William DeVries
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, USA
| | - Oliver Mithoefer
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, USA
| | - Bashar W Badran
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, USA; Department of Neurosciences, Medical University of South Carolina, USA
| | - Mark S George
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, USA; Department of Neurosciences, Medical University of South Carolina, USA; Center for Biomedical Imaging, Medical University of South Carolina, USA; Ralph H Johnson Veterans Affairs Medical Center, USA
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Lister JJ, Ledgerwood DM, Lundahl LH, Greenwald MK. Causal pathways between impulsiveness, cocaine use consequences, and depression. Addict Behav 2015; 41:1-6. [PMID: 25280245 DOI: 10.1016/j.addbeh.2014.09.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 07/29/2014] [Accepted: 09/15/2014] [Indexed: 10/24/2022]
Abstract
AIMS The present study examined whether lifetime cocaine use consequences mediate the relationship between trait impulsiveness and current depression symptoms among regular cocaine users. METHODS Regular cocaine users (N=108) were assessed using: Barratt Impulsiveness Scale subscales (non-planning, attentional, motor sub-scales) to measure trait impulsiveness; a standardized Drug History and Use Questionnaire to measure cocaine use and related consequences; and Beck Depression Inventory to measure current depression symptoms. RESULTS All impulsiveness subscales were positively associated with an earlier age of first cocaine use, a higher degree of current depression symptoms and a greater number of lifetime cocaine use consequences. In three separate simple mediation tests, lifetime cocaine use consequences partially mediated the relationship between each of the impulsiveness subscales (non-planning: R(2)=.42; attentional: R(2)=.40; motor: R(2)=.24) and current depression symptoms. Separate moderated mediation analyses failed to demonstrate an interaction between lifetime cocaine use and cocaine-related consequences predicting depression symptoms for the mediation models. CONCLUSIONS Cocaine-related consequences function in a more nuanced manner than just an outcome of impulsiveness or cocaine use, but as a pathway between trait impulsiveness and current depression symptoms.
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McHugh RK, Fitzmaurice GM, Carroll KM, Griffin ML, Hill KP, Wasan AD, Weiss RD. Assessing craving and its relationship to subsequent prescription opioid use among treatment-seeking prescription opioid dependent patients. Drug Alcohol Depend 2014; 145:121-6. [PMID: 25454409 PMCID: PMC4254575 DOI: 10.1016/j.drugalcdep.2014.10.002] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 09/10/2014] [Accepted: 10/01/2014] [Indexed: 11/23/2022]
Abstract
BACKGROUND Craving is viewed as a core feature of substance use disorders and has been shown to predict future drug use, particularly over the short term. Accordingly, craving is often assessed in treatment settings as a marker of risk for subsequent drug use. The identification of the briefest measure that maintains predictive validity is of particular value for both clinical and research settings to minimize assessment burden while maintaining utility for the prediction of use. METHODS Data from a multi-site clinical trial of treatment for prescription opioid dependence were examined to evaluate whether a brief, 3-item craving scale administered each week predicted urine-confirmed self report of prescription opioid use in the subsequent week. Logistic regression models examining the association between craving and presence or absence of opioid use in the following week were conducted, controlling for opioid use in the previous week, treatment condition, and lifetime history of heroin use. RESULTS Greater craving was associated with a higher odds of prescription opioid use in the following week. For each one-unit increase on this 10-point scale, the odds of using opioids in the subsequent week was 17% higher. In addition to an item assessing urges, items assessing cue-induced craving and perceived likelihood of relapse in an environment where drugs were previously used contributed uniquely to this association. CONCLUSIONS A brief measure of prescription opioid craving predicted prescription opioid use among individuals in treatment. This measure offers an efficient strategy to inform the assessment of risk for use in this population.
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Affiliation(s)
- R Kathryn McHugh
- Division of Alcohol and Drug Abuse, McLean Hospital, 115 Mill Street, Belmont, MA 02478, USA; Department of Psychiatry, Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA.
| | - Garrett M Fitzmaurice
- Department of Psychiatry, Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA; Laboratory for Psychiatric Biostatistics, McLean Hospital, 115 Mill Street, Belmont, MA 02478, USA
| | - Kathleen M Carroll
- Department of Psychiatry, Yale University School of Medicine, 950 Campbell Ave, MIRECC 151D, West Haven, CT 06516, USA
| | - Margaret L Griffin
- Division of Alcohol and Drug Abuse, McLean Hospital, 115 Mill Street, Belmont, MA 02478, USA; Department of Psychiatry, Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA
| | - Kevin P Hill
- Division of Alcohol and Drug Abuse, McLean Hospital, 115 Mill Street, Belmont, MA 02478, USA; Department of Psychiatry, Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA
| | - Ajay D Wasan
- Departments of Anesthesiology and Psychiatry, University of Pittsburgh School of Medicine, 5750 Centre Avenue, Suite 400, Pittsburgh, PA 15206, USA
| | - Roger D Weiss
- Division of Alcohol and Drug Abuse, McLean Hospital, 115 Mill Street, Belmont, MA 02478, USA; Department of Psychiatry, Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA
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Doyle SR, Donovan DM. Applying an ensemble classification tree approach to the prediction of completion of a 12-step facilitation intervention with stimulant abusers. PSYCHOLOGY OF ADDICTIVE BEHAVIORS 2014; 28:1127-43. [PMID: 25134038 PMCID: PMC4274230 DOI: 10.1037/a0037235] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The purpose of this study was to explore the selection of predictor variables in the evaluation of drug treatment completion using an ensemble approach with classification trees. The basic methodology is reviewed, and the subagging procedure of random subsampling is applied. Among 234 individuals with stimulant use disorders randomized to a 12-step facilitative intervention shown to increase stimulant use abstinence, 67.52% were classified as treatment completers. A total of 122 baseline variables were used to identify factors associated with completion. The number of types of self-help activity involvement prior to treatment was the predominant predictor. Other effective predictors included better coping self-efficacy for substance use in high-risk situations, more days of prior meeting attendance, greater acceptance of the Disease model, higher confidence for not resuming use following discharge, lower Addiction Severity Index (ASI) Drug and Alcohol composite scores, negative urine screens for cocaine or marijuana, and fewer employment problems. The application of an ensemble subsampling regression tree method utilizes the fact that classification trees are unstable but, on average, produce an improved prediction of the completion of drug abuse treatment. The results support the notion there are early indicators of treatment completion that may allow for modification of approaches more tailored to fitting the needs of individuals and potentially provide more successful treatment engagement and improved outcomes.
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Affiliation(s)
- Suzanne R. Doyle
- Alcohol and Drug Abuse Institute, University of Washington, Seattle,
WA, USA
| | - Dennis M. Donovan
- Alcohol and Drug Abuse Institute, University of Washington, Seattle,
WA, USA
- Department of Psychiatry and Behavioral Sciences, University of
Washington School of Medicine, Seattle, WA, USA
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Xu J, Kober H, Wang X, DeVito EE, Carroll KM, Potenza MN. Hippocampal volume mediates the relationship between measures of pre-treatment cocaine use and within-treatment cocaine abstinence. Drug Alcohol Depend 2014; 143:74-80. [PMID: 25115748 PMCID: PMC4165405 DOI: 10.1016/j.drugalcdep.2014.07.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 07/06/2014] [Accepted: 07/07/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Data suggest that the amygdala and hippocampus contribute to cocaine seeking and use, particularly following exposure to cocaine-related cues and contexts. Furthermore, indices of pre-treatment cocaine-use severity have been shown to correlate with treatment outcome in cocaine-dependent patients. METHODS The aim of this study was to assess the relationships between amygdalar and hippocampal volumes and cocaine use before and during treatment. High-resolution magnetic-resonance brain images were obtained from 23 cocaine-dependent patients prior to treatment and 54 healthy comparison individuals. Automated segmentation of the amygdala and hippocampus images was performed in FreeSurfer. Cocaine-dependent patients subsequently received behavioral therapy alone or combined with contingency management as part of a treatment trial, and cocaine-use indices (self-report, urine toxicology) were collected. RESULTS Comparison participants and cocaine-dependent patients did not show significant difference in amygdalar and hippocampal volumes at pre-treatment. Within the patient group, greater hippocampal volumes were correlated with more days of cocaine use before treatment and with poorer treatment outcome as indexed by shorter durations of continuous abstinence from cocaine and lower percentages of cocaine-negative urine samples during treatment. Mediation analysis indicated that pre-treatment hippocampal volumes mediated the relationships between pre-treatment cocaine use and treatment outcomes. CONCLUSIONS The finding of a significant correlation between hippocampal volume and pre-treatment cocaine-use severity and treatment response suggests that hippocampal volume should be considered when developing individualized treatments for cocaine dependence.
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Affiliation(s)
- Jiansong Xu
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, United States.
| | - Hedy Kober
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, United States
| | - Xin Wang
- Department of Neurosciences, University of Toledo Medical Center, 3000 Arlington Avenue, Toledo, OH 43614, USA
| | - Elise E. DeVito
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, United States
| | - Kathleen M. Carroll
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, United States
| | - Marc N. Potenza
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06510, United States,Child Study Center, Yale University School of Medicine, New Haven, CT 06510, United States,Department of Neurobiology, Yale University School of Medicine, New Haven, CT 06510, United States
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50
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Luo SX, Martinez D, Carpenter KM, Slifstein M, Nunes EV. Multimodal predictive modeling of individual treatment outcome in cocaine dependence with combined neuroimaging and behavioral predictors. Drug Alcohol Depend 2014; 143:29-35. [PMID: 25108585 PMCID: PMC4358761 DOI: 10.1016/j.drugalcdep.2014.04.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 04/11/2014] [Accepted: 04/21/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Developing personalized treatments for cocaine dependence remains a significant clinical challenge. Positron emission tomography (PET) has shown that the [(11)C]raclopride signal in the ventral striatum is associated with treatment success in a positively reinforced contingency management program. The present study investigates whether this signal can be used to predict treatment outcome at an individual level. METHODS Predictive models were developed using PET signals from 5 regions of the striatum and follow-up data in 24 patients, and evaluated using cross-validation. RESULTS The ventral striatal PET signal alone can predict individual treatment response with a substantial degree of accuracy (cross-validated correct rate=82%). Incorporating information from other regions-of-interest (ROIs) in the striatum does not improve predictive performance, except for a small improvement with adding the posterior caudate. The addition of baseline demographic variables, including baseline severity measures, does not improve predictive performance. On the other hand, early treatment response and motivation, reflected by cumulative clinic attendance, performs as well as the PET signal (83%) by week 3 in the 24-week study. The combined model with both PET signals and cumulative clinic attendance demonstrates a significant improvement of performance, peaking at 96% during week 3 of the trial. CONCLUSIONS These results suggest that a multimodal model can predict treatment success in cocaine dependence at an individual level, and pose hypotheses for the underlying neural circuitry mechanisms responsible for individual variations in treatment outcome.
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Affiliation(s)
- Sean X. Luo
- Division of Substance Abuse, Department of Psychiatry, New York State Psychiatric Institute, Columbia University. 1051 Riverside Drive #32, New York, NY 10032
| | - Diana Martinez
- Division of Substance Abuse, Department of Psychiatry, New York State Psychiatric Institute, Columbia University. 1051 Riverside Drive #32, New York, NY 10032
| | - Kenneth M. Carpenter
- Division of Substance Abuse, Department of Psychiatry, New York State Psychiatric Institute, Columbia University. 1051 Riverside Drive #32, New York, NY 10032
| | - Mark Slifstein
- Division of Substance Abuse, Department of Psychiatry, New York State Psychiatric Institute, Columbia University. 1051 Riverside Drive #32, New York, NY 10032
| | - Edward V Nunes
- Division of Substance Abuse, Department of Psychiatry, New York State Psychiatric Institute, Columbia University. 1051 Riverside Drive #32, New York, NY 10032
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