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Batchelder AW, Claire Greene M, Scheer JR, Foley J, Jenny Shin HJ, Koehn KM, Kelly JF. Sexual minority disparities in psychosocial functioning following substance use recovery among a representative sample of US adults. Addict Behav Rep 2024; 19:100527. [PMID: 38226009 PMCID: PMC10788780 DOI: 10.1016/j.abrep.2024.100527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/30/2023] [Accepted: 01/02/2024] [Indexed: 01/17/2024] Open
Abstract
Purpose Sexual minority (SM; e.g., gay, lesbian, bisexual) individuals are disproportionately impacted by alcohol and other drug (AOD) use disorders and psychosocial factors that can exacerbate AOD use disorders and hinder recovery. This study examines SM sub-group differences (monosexual [gay/lesbian] versus bisexual) regarding adaptation to recovery measured by indices of psychosocial functioning. Identifying differential needs of gay/lesbian versus bisexual individuals could improve services to better meet the needs of SM individuals in recovery. Methods Using data from the National Recovery Study, a nationally representative cross-sectional sample of US adults who reported resolving an AOD problem (N = 2,002), we compared heterosexual to monosexual and bisexual SM individuals on socio-demographic characteristics, AOD use and treatment, and psychosocial variables. Results Bisexual individuals were significantly younger than heterosexual individuals (p = .002 and p ≤ 0.001 among men and women, respectively) and reported significantly fewer years since AOD problem resolution compared to heterosexual individuals (p = .004 and p = .003 among men and women, respectively). Most notably, bisexual individuals, but not gay/lesbian individuals, reported significantly lower quality of life (QOL), happiness, self-esteem, and significantly higher distress compared to heterosexual individuals. Conclusion Bisexual, but not monosexual, SM individuals in recovery from an AOD use disorder, were younger and reported worse psychosocial functioning than heterosexual individuals. Findings highlight significant differences between monosexual versus bisexual identified individuals with a notable disadvantage experienced by bisexual individuals. More needs to be learned about the challenges faced by bisexual individuals in recovery to better address their needs and support long-term AOD recovery.
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Affiliation(s)
- Abigail W. Batchelder
- Psychiatry Department, Massachusetts General Hospital, Boston, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
- The Fenway Institute, Fenway Health, Boston, MA, USA
| | - M. Claire Greene
- Heilbrunn Department of Population and Family Health, Columbia University Mailman School of Public Health, New York, NY, USA
| | | | - Jacklyn Foley
- Psychiatry Department, Massachusetts General Hospital, Boston, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | | | - Kyrié M. Koehn
- Psychiatry Department, Massachusetts General Hospital, Boston, MA, USA
- The Fenway Institute, Fenway Health, Boston, MA, USA
| | - John F. Kelly
- Psychiatry Department, Massachusetts General Hospital, Boston, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
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2
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Tibboel H, Van Bockstaele B, Spruyt A, Franken I. Implicit beliefs and automatic associations in smoking. J Behav Ther Exp Psychiatry 2024; 83:101925. [PMID: 38029484 DOI: 10.1016/j.jbtep.2023.101925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 10/23/2023] [Accepted: 10/29/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND AND OBJECTIVES Dual process models of addiction suggest that controlled, goal-directed processes prevent drug-use, whereas impulsive, stimulus-driven processes promote drug-use. The most frequently used measure of automatic smoking-related processes, the implicit association test (IAT), has yielded mixed results. We examine the validity of two alternative implicit measures: 1) the affect misattribution procedure (AMP), a measure of automatic evaluations, and 2) the relational responding task (RRT), a measure of implicit beliefs. METHODS Smokers and non-smokers performed smoking-related versions of the AMP and the RRT and filled in questionnaires for smoking dependence. Smokers participated in two sessions: once after they just smoked, and once after being deprived for 10 h. Smokers also kept a smoking diary for a week after the second session. RESULTS We found significant differences between smokers and non-smokers on the RRT, t (86) = 2.86, p = .007, d = 0.61, and on the AMP, F (1, 85) = 6.22, p = .015, pƞ2 = 0.07. Neither the AMP nor the RRT were affected by the deprivation manipulation. Smoking dependence predicted smoking behavior in the following week; the AMP and RRT did not explain additional variance. LIMITATIONS Possibly, our manipulation was not strong enough to affect the motivational state of participants in a way that it changed their implicit cognitions. Future research should examine the sensitivity of implicit measures to (motivational) context. CONCLUSIONS We found limited evidence for the validity of the smoking-AMP and the smoking-RRT, highlighting the need for a critical view on implicit measures.
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Cole RH, Moussawi K, Joffe ME. Opioid modulation of prefrontal cortex cells and circuits. Neuropharmacology 2024; 248:109891. [PMID: 38417545 PMCID: PMC10939756 DOI: 10.1016/j.neuropharm.2024.109891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/30/2024] [Accepted: 02/26/2024] [Indexed: 03/01/2024]
Abstract
Several neurochemical systems converge in the prefrontal cortex (PFC) to regulate cognitive and motivated behaviors. A rich network of endogenous opioid peptides and receptors spans multiple PFC cell types and circuits, and this extensive opioid system has emerged as a key substrate underlying reward, motivation, affective behaviors, and adaptations to stress. Here, we review the current evidence for dysregulated cortical opioid signaling in the pathogenesis of psychiatric disorders. We begin by providing an introduction to the basic anatomy and function of the cortical opioid system, followed by a discussion of endogenous and exogenous opioid modulation of PFC function at the behavioral, cellular, and synaptic level. Finally, we highlight the therapeutic potential of endogenous opioid targets in the treatment of psychiatric disorders, synthesizing clinical reports of altered opioid peptide and receptor expression and activity in human patients and summarizing new developments in opioid-based medications. This article is part of the Special Issue on "PFC circuit function in psychiatric disease and relevant models".
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Affiliation(s)
- Rebecca H Cole
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, 15219, USA; Translational Neuroscience Program, University of Pittsburgh, Pittsburgh, PA, USA; Center for Neuroscience University of Pittsburgh, Pittsburgh, PA, USA
| | - Khaled Moussawi
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, 15219, USA; Translational Neuroscience Program, University of Pittsburgh, Pittsburgh, PA, USA; Center for Neuroscience University of Pittsburgh, Pittsburgh, PA, USA
| | - Max E Joffe
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, 15219, USA; Translational Neuroscience Program, University of Pittsburgh, Pittsburgh, PA, USA; Center for Neuroscience University of Pittsburgh, Pittsburgh, PA, USA.
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4
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Brunt TM. Nitrous oxide: A difficult case for classification as an addictive substance. Addiction 2024; 119:621-622. [PMID: 38123187 DOI: 10.1111/add.16419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023]
Affiliation(s)
- Tibor Markus Brunt
- Department of Psychiatry, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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5
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Valyear MD, Eustachon NML, Britt JP. Palatability attributed to alcohol and alcohol-paired flavors. Physiol Behav 2024; 277:114500. [PMID: 38430645 DOI: 10.1016/j.physbeh.2024.114500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/31/2024] [Accepted: 02/19/2024] [Indexed: 03/05/2024]
Abstract
The orosensory features of alcoholic drinks are potent relapse triggers because they acquire incentive properties during consumption, including enhanced palatability. Whether mice similarly perceive alcoholic drinks to be more palatable after repeated consumption is complicated by reports showing that alcohol elicits aversive taste reactivity responses and conditions flavor avoidance. Here, by analyzing the microstructure of alcohol consumption, we report a gradual increase in lick bout duration relative to water that is partially maintained by an alcohol-paired flavor in extinction. We interpret lick bout duration to reflect an increase in the palatability alcohol and an alcohol-paired flavor. This finding demonstrates that bout duration is amenable to Pavlovian conditioning and highlights the importance of considering the microstructure of alcohol consumption in preclinical models of alcohol misuse.
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Affiliation(s)
- M D Valyear
- Department of Psychology, McGill University, Montréal, QC, Canada; Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, QC, Canada
| | - N M-L Eustachon
- Department of Psychology, McGill University, Montréal, QC, Canada; Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, QC, Canada
| | - J P Britt
- Department of Psychology, McGill University, Montréal, QC, Canada; Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, QC, Canada.
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Back S, Kroon E, Colyer-Patel K, Cousijn J. Nitrous oxide addiction or not, action is needed. A response to commentaries. Addiction 2024; 119:627-628. [PMID: 38404020 DOI: 10.1111/add.16457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/27/2024]
Affiliation(s)
- Sammie Back
- Department of Psychology Education and Child Studies, Neuroscience of Addiction (NofA) Laboratory, Center for Substance Use and Addiction Research (CESAR), Erasmus University Rotterdam, Rotterdam, the Netherlands
| | - Emese Kroon
- Department of Psychology Education and Child Studies, Neuroscience of Addiction (NofA) Laboratory, Center for Substance Use and Addiction Research (CESAR), Erasmus University Rotterdam, Rotterdam, the Netherlands
- Developmental Psychology, University of Amsterdam, Amsterdam, the Netherlands
| | - Karis Colyer-Patel
- Department of Psychology Education and Child Studies, Neuroscience of Addiction (NofA) Laboratory, Center for Substance Use and Addiction Research (CESAR), Erasmus University Rotterdam, Rotterdam, the Netherlands
| | - Janna Cousijn
- Department of Psychology Education and Child Studies, Neuroscience of Addiction (NofA) Laboratory, Center for Substance Use and Addiction Research (CESAR), Erasmus University Rotterdam, Rotterdam, the Netherlands
- Developmental Psychology, University of Amsterdam, Amsterdam, the Netherlands
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Garland EL, Jinpa T. Mindfulness-induced self-transcendence promotes universal love with consequent effects on opioid misuse. Behav Res Ther 2024; 175:104494. [PMID: 38395015 DOI: 10.1016/j.brat.2024.104494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 02/01/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024]
Abstract
In addition to its health benefits, mindfulness has been theorized in classical contemplative frameworks to elicit self-transcendent experiences as a means of promoting universal love and compassion. Increasing feelings of love may be especially clinically relevant for the treatment of opioid misuse, in that addictive use of opioids dysregulates neurobiological processes implicated in the experience of love. Here we tested these hypotheses in a secondary analysis (n = 187) of data from a randomized clinical trial of Mindfulness-Oriented Recovery Enhancement (MORE) versus supportive psychotherapy for comorbid opioid misuse and chronic pain. At pre- and post-treatment, participants completed a measure of state self-transcendence immediately following a laboratory-based mindfulness task. Through 9-month follow-up, we assessed changes in universal love and opioid misuse. Participants also completed ecological momentary assessments of opioid craving during the 8-week study interventions and for the following month. Compared to supportive psychotherapy, participants in MORE reported significantly greater increases in mindfulness-induced self-transcendence, which mediated the effect of MORE on increased feelings of universal love. In turn, increases in universal love significantly predicted decreased opioid craving and lower odds opioid misuse through 1- and 9-month follow-ups, respectively. Findings suggest mindfulness-induced self-transcendence may promote feelings of universal love, with possible downstream benefits on reducing addictive behavior.
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Affiliation(s)
- Eric L Garland
- Center on Mindfulness and Integrative Health Intervention Development, University of Utah, USA.
| | - Thupten Jinpa
- School of Religious Studies, McGill University, Canada
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8
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Pandey S, Miller CA. Targeting the cytoskeleton as a therapeutic approach to substance use disorders. Pharmacol Res 2024; 202:107143. [PMID: 38499081 DOI: 10.1016/j.phrs.2024.107143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 03/06/2024] [Accepted: 03/12/2024] [Indexed: 03/20/2024]
Abstract
Substance use disorders (SUD) are chronic relapsing disorders governed by continually shifting cycles of positive drug reward experiences and drug withdrawal-induced negative experiences. A large body of research points to plasticity within systems regulating emotional, motivational, and cognitive processes as drivers of continued compulsive pursuit and consumption of substances despite negative consequences. This plasticity is observed at all levels of analysis from molecules to networks, providing multiple avenues for intervention in SUD. The cytoskeleton and its regulatory proteins within neurons and glia are fundamental to the structural and functional integrity of brain processes and are potentially the major drivers of the morphological and behavioral plasticity associated with substance use. In this review, we discuss preclinical studies that provide support for targeting the brain cytoskeleton as a therapeutic approach to SUD. We focus on the interplay between actin cytoskeleton dynamics and exposure to cocaine, methamphetamine, alcohol, opioids, and nicotine and highlight preclinical studies pointing to a wide range of potential therapeutic targets, such as nonmuscle myosin II, Rac1, cofilin, prosapip 1, and drebrin. These studies broaden our understanding of substance-induced plasticity driving behaviors associated with SUD and provide new research directions for the development of SUD therapeutics.
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Affiliation(s)
- Surya Pandey
- Department of Molecular Medicine, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, Jupiter, FL 33458, United States; Department of Neuroscience, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, Jupiter, FL 33458, United States
| | - Courtney A Miller
- Department of Molecular Medicine, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, Jupiter, FL 33458, United States; Department of Neuroscience, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, Jupiter, FL 33458, United States.
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9
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Wegener G. Unravelling the complex tapestry of addiction: insights from recent research. Acta Neuropsychiatr 2024; 36:65-66. [PMID: 38456259 DOI: 10.1017/neu.2024.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Affiliation(s)
- Gregers Wegener
- Translational Neuropsychiatry Unit, Aarhus University, Aarhus, Denmark
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10
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Hunt A, Merola GP, Carpenter T, Jaeggi AV. Evolutionary perspectives on substance and behavioural addictions: Distinct and shared pathways to understanding, prediction and prevention. Neurosci Biobehav Rev 2024; 159:105603. [PMID: 38402919 DOI: 10.1016/j.neubiorev.2024.105603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 01/31/2024] [Accepted: 02/21/2024] [Indexed: 02/27/2024]
Abstract
Addiction poses significant social, health, and criminal issues. Its moderate heritability and early-life impact, affecting reproductive success, poses an evolutionary paradox: why are humans predisposed to addictive behaviours? This paper reviews biological and psychological mechanisms of substance and behavioural addictions, exploring evolutionary explanations for the origin and function of relevant systems. Ancestrally, addiction-related systems promoted fitness through reward-seeking, and possibly self-medication. Today, psychoactive substances disrupt these systems, leading individuals to neglect essential life goals for immediate satisfaction. Behavioural addictions (e.g. video games, social media) often emulate ancestrally beneficial behaviours, making them appealing yet often irrelevant to contemporary success. Evolutionary insights have implications for how addiction is criminalised and stigmatised, propose novel avenues for interventions, anticipate new sources of addiction from emerging technologies such as AI. The emerging potential of glucagon-like peptide 1 (GLP-1) agonists targeting obesity suggest the satiation system may be a natural counter to overactivation of the reward system.
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Affiliation(s)
- Adam Hunt
- Institute of Evolutionary Medicine, University of Zürich, Zürich, Switzerland.
| | | | - Tom Carpenter
- College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
| | - Adrian V Jaeggi
- Institute of Evolutionary Medicine, University of Zürich, Zürich, Switzerland
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Zhang A, Balles JA, Henningfield MF, Nyland JE, Nguyen TH, Zgierska AE. Offering recovery rather than punishment: Implementation of a law enforcement-led pre-arrest diversion-to-treatment program for adults with substance use disorders. J Subst Use Addict Treat 2024; 159:209274. [PMID: 38113995 DOI: 10.1016/j.josat.2023.209274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/13/2023] [Accepted: 12/13/2023] [Indexed: 12/21/2023]
Abstract
BACKGROUND The opioid epidemic has strained the US criminal justice system. Law enforcement frequently encounters persons with substance use disorder (SUD). Law enforcement-led, pre-arrest diversion programs linking individuals with SUD to addiction treatment instead of arrest and prosecution has the potential to reduce crime, overdoses, and other community harms. We implemented a pre-arrest diversion-to-treatment program-the Madison Addiction Recovery Initiative (MARI)-from September 2017 to August 2020, and describe the key components of MARI's effective implementation. METHODS Adults who committed an eligible, drug use-related crime were offered a 6-month MARI participation with referral to treatment in lieu of arrest; criminal charges for that crime were "voided" upon the successful MARI completion. Formative evaluation, with stakeholder feedback and team meeting minutes, assessed key factors influencing implementation. Process evaluation consisted of tracking participant referrals, enrollment, and engagement. Police officers, MARI participants, and treatment center staff members were surveyed about program experiences and attitudes. The study used descriptive statistics to describe quantitative survey responses; thematic qualitative analysis identified major themes in qualitative responses. RESULTS Of 263 participants, 160 initiated program engagement, with 100 successfully completing MARI. Interim evaluations and community partner feedback informed program protocol adjustments to increase participant enrollment, retention and diversity, streamline the referral processes, and transition to telehealth during the COVID-19 pandemic. CONCLUSION Rigorous evaluation and community partner feedback are essential components of effective implementation and sustainability of a law enforcement-led pre-arrest diversion-to-treatment program, which has the potential to both reduce crime and overdose, and change the lives of people with SUD.
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Affiliation(s)
- Alice Zhang
- Penn State College of Medicine - Department of Family and Community Medicine, 500 University Drive, Hershey 17033, PA, USA.
| | - Joseph A Balles
- Safe Communities Madison-Dane County, Inc., Retired Captain, City of Madison Police Department, 211 S. Carroll Street, Madison 53703, WI, USA
| | - Mary F Henningfield
- University of Wisconsin-Madison- Department of Family Medicine and Community Health, 1100 Delaplaine Ct., Madison 53715, WI, USA.
| | - Jennifer E Nyland
- Penn State College of Medicine - Department of Neural and Behavioral Sciences, 500 University Drive, Hershey 17033, PA, USA.
| | - Thao H Nguyen
- Family Health Centers of San Diego, 5454 El Cajon Boulevard, San Diego 92115, CA, USA.
| | - Aleksandra E Zgierska
- Penn State College of Medicine - Departments of Family and Community Medicine, Public Health Sciences, and Anesthesiology and Perioperative Medicine, 500 University Drive, Hershey 17033, PA, USA.
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12
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LaRowe LR, Miller A, Shah SJ, Ritchie CS. Hazardous Alcohol Use Among Community-Dwelling Older Adults With Persistent or Recurrent Pain: Findings From the Health and Retirement Study. J Gerontol A Biol Sci Med Sci 2024; 79:glad281. [PMID: 38135282 PMCID: PMC10959438 DOI: 10.1093/gerona/glad281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND Although pain and alcohol use are highly prevalent and associated with deleterious health outcomes among older adults, a paucity of literature has examined hazardous drinking among older adults with pain. We aimed to examine the prevalence of hazardous drinking among a nationally representative sample of older adults with persistent or recurrent pain. METHODS We conducted cross-sectional analyses of data collected from the 2018 wave of the Health and Retirement Study. Participants included 1 549 community-dwelling adults aged ≥65 with persistent or recurrent pain (ie, clinically significant pain present at 2 consecutive survey waves). RESULTS More than one-quarter of older adults with persistent or recurrent pain reported regular alcohol use (≥weekly), nearly half of whom reported hazardous patterns of drinking. Specifically, 32% reported excessive drinking (ie, >2 drinks per day for older men; >1 drink per day for older women), and 22% reported binge drinking (ie, ≥4 drinks on one occasion). Exploratory analyses revealed a high prevalence of hazardous drinking among the subsample of older adults who used opioids (47%). CONCLUSIONS Hazardous alcohol use-including both excessive and binge drinking-is common among older adults with persistent or recurrent pain, including those who take opioids. Given that hazardous drinking can complicate pain management and increase the risk for adverse opioid effects (eg, overdose), the current findings underscore the importance of assessing and addressing hazardous patterns of alcohol use among older adults with persistent or recurrent pain.
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Affiliation(s)
- Lisa R LaRowe
- Mongan Institute Center for Aging and Serious Illness, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Angela Miller
- Mongan Institute Center for Aging and Serious Illness, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Sachin J Shah
- Mongan Institute Center for Aging and Serious Illness, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Christine S Ritchie
- Mongan Institute Center for Aging and Serious Illness, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA
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13
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Murdaugh LB, Miliano C, Chen I, Faunce CL, Natividad LA, Gregus AM, Buczynski MW. Effect of chronic vapor nicotine exposure on affective and cognitive behavior in male mice. Sci Rep 2024; 14:6646. [PMID: 38503831 PMCID: PMC10951409 DOI: 10.1038/s41598-024-56766-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/11/2024] [Indexed: 03/21/2024] Open
Abstract
Nicotine use is a leading cause of preventable deaths worldwide, and most of those who attempt to quit will relapse. While electronic cigarettes and other electronic nicotine delivery systems (ENDS) were presented as a safer alternative to traditional cigarettes and promoted as devices to help traditional tobacco smokers reduce or quit smoking, they have instead contributed to increasing nicotine use among youths. Despite this, ENDS also represent a useful tool to create novel preclinical animal models of nicotine exposure that more accurately represent human nicotine use. In this study, we validated a chronic, intermittent, ENDS-based passive vapor exposure model in mice, and then measured changes in multiple behaviors related to nicotine abstinence. First, we performed a behavioral dose curve to investigate the effects of different nicotine inter-vape intervals on various measures including body weight, locomotor activity, and pain hypersensitivity. Next, we performed a pharmacokinetic study to measure plasma levels of nicotine and cotinine following chronic exposure for each inter-vape interval. Finally, we utilized a behavior test battery at a single dosing regimen that produces blood levels equivalent to human smokers in order to characterize the effects of chronic nicotine, vehicle, or passive airflow and identified nicotine-induced impairments in cognitive behavior.
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Affiliation(s)
- Laura B Murdaugh
- School of Neuroscience, Virginia Polytechnic Institute and State University, 970 Washington St SW, Life Sciences I, Blacksburg, VA, 24061, USA
- Translational Biology, Medicine, and Health, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Cristina Miliano
- School of Neuroscience, Virginia Polytechnic Institute and State University, 970 Washington St SW, Life Sciences I, Blacksburg, VA, 24061, USA
| | - Irene Chen
- School of Neuroscience, Virginia Polytechnic Institute and State University, 970 Washington St SW, Life Sciences I, Blacksburg, VA, 24061, USA
| | - Christine L Faunce
- School of Neuroscience, Virginia Polytechnic Institute and State University, 970 Washington St SW, Life Sciences I, Blacksburg, VA, 24061, USA
| | - Luis A Natividad
- College of Pharmacy, Division of Pharmacology and Toxicology, University of Texas at Austin, Austin, TX, USA
| | - Ann M Gregus
- School of Neuroscience, Virginia Polytechnic Institute and State University, 970 Washington St SW, Life Sciences I, Blacksburg, VA, 24061, USA.
| | - Matthew W Buczynski
- School of Neuroscience, Virginia Polytechnic Institute and State University, 970 Washington St SW, Life Sciences I, Blacksburg, VA, 24061, USA.
- Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
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Wagener TL, Mehta T, Hinton A, Schulz JA, Erath TG, Tidey J, Brinkman MC, Wilson C, Villanti AC. Addiction potential of combustible menthol cigarette alternatives: a randomised cross-over trial. Tob Control 2024; 33:e97-e105. [PMID: 36424139 PMCID: PMC10227719 DOI: 10.1136/tc-2022-057421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 11/02/2022] [Indexed: 11/26/2022]
Abstract
INTRODUCTION The Food and Drug Administration (FDA) has issued proposed product standards banning menthol as a characterising flavour in cigarettes and cigars. The public health benefits of these product standards may be attenuated by the role of plausible substitutes in the marketplace. Therefore, the present study examined the addiction potential of plausible combustible menthol alternatives compared with usual brand menthol cigarettes (UBMC). METHODS Ninety-eight adult menthol cigarette smokers completed four visits, smoking their UBMC at the first session and three menthol cigarette alternatives in random order at the subsequent visits: (1) a preassembled menthol roll-your-own (mRYO) cigarette using menthol pipe tobacco and mentholated cigarette tube, (2) a menthol filtered little cigar (mFLC) and (3) a non-menthol cigarette (NMC). Measures of smoking topography, exhaled carbon monoxide (CO), craving and withdrawal, subjective effects and behavioural economic demand indices were assessed. RESULTS Compared with UBMC, menthol cigarette alternatives resulted in different puffing topography and CO exposure (except mRYO), and lower levels of positive subjective experience and behavioural economic demand indices. Among the alternative products, participants reported the highest level of positive subjective experience and higher demand for mRYO, compared with mFLC and NMC. Similarly, participants were significantly more likely to want to try again, purchase and use the mRYO product regularly compared with mFLC and NMC. CONCLUSIONS AND RELEVANCE mRYO cigarettes were the most highly rated cigarette alternative among study products, suggesting their potential appeal as a menthol cigarette substitute and needed inclusion of menthol pipe tobacco and cigarette tubes in FDA's proposed ban.
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Affiliation(s)
- Theodore L Wagener
- Center for Tobacco Research, The Ohio State University James Comprehensive Cancer Center, Columbus, Ohio, USA
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Toral Mehta
- Center for Tobacco Research, The Ohio State University James Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Alice Hinton
- Center for Tobacco Research, The Ohio State University James Comprehensive Cancer Center, Columbus, Ohio, USA
| | - Jonathan A Schulz
- Vermont Center on Behavior and Health, University of Vermont, Burlington, Vermont, USA
| | - Tyler G Erath
- Vermont Center on Behavior and Health, University of Vermont, Burlington, Vermont, USA
| | - Jennifer Tidey
- Behavioral and Social Sciences, Brown University, Providence, Rhode Island, USA
| | - Marielle C Brinkman
- Center for Tobacco Research, The Ohio State University James Comprehensive Cancer Center, Columbus, Ohio, USA
- College of Public Health, The Ohio State University, Columbus, Ohio, USA
| | - Clark Wilson
- Center for Tobacco Research, The Ohio State University James Comprehensive Cancer Center, Columbus, Ohio, USA
- College of Public Health, The Ohio State University, Columbus, Ohio, USA
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15
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Jordt SE, Jabba SV, Zettler PJ, Berman ML. Spree Bar, a vaping system delivering a synthetic nicotine analogue, marketed in the USA as 'PMTA exempt'. Tob Control 2024:tc-2023-058469. [PMID: 38499343 DOI: 10.1136/tc-2023-058469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 03/06/2024] [Indexed: 03/20/2024]
Affiliation(s)
- Sven Eric Jordt
- Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina, USA
- Yale Tobacco Center of Regulatory Science, Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
| | - Sairam V Jabba
- Department of Anesthesiology, Duke University School of Medicine, Durham, North Carolina, USA
- Yale Tobacco Center of Regulatory Science, Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
| | - Patricia J Zettler
- College of Public Health, The Ohio State University, Columbus, Ohio, USA
- The Ohio State University Moritz College of Law, Columbus, Ohio, USA
| | - Micah L Berman
- College of Public Health, The Ohio State University, Columbus, Ohio, USA
- The Ohio State University Moritz College of Law, Columbus, Ohio, USA
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16
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Lima ALD, Silva EG, Cardozo PL, da Silva MCM, Koerich S, Ribeiro FM, Moreira FA, Vieira LB. Isradipine, an L-type calcium channel blocker, attenuates cocaine effects in mice by reducing central glutamate release. Eur J Pharmacol 2024; 971:176489. [PMID: 38492875 DOI: 10.1016/j.ejphar.2024.176489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/15/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
Substance abuse disorder is a chronic condition for which pharmacological treatment options remain limited. L-type calcium channels (LTCC) have been implicated in drug-related plasticity and behavior. Specifically, dopaminergic neurons in the mesocorticolimbic pathway express Cav1.2 and Cav1.3 channels, which may regulate dopaminergic activity associated with reward behavior. Therefore, this study aimed to investigate the hypothesis that pre-administration of the LTCC blocker, isradipine can mitigate the effects of cocaine by modulating central glutamatergic transmission. For that, we administered isradipine at varying concentrations (1, 7.5, and 15 μg/μL) via intracerebroventricular injection in male Swiss mice. This pretreatment was carried out prior to subjecting animals to behavioral assessments to evaluate cocaine-induced locomotor sensitization and conditioned place preference (CPP). The results revealed that isradipine administered at a concentration of 1 μg/μL effectively attenuated both the sensitization and CPP induced by cocaine (15 mg/kg, via i. p.). Moreover, mice treated with 1 μg/μL of isradipine showed decreased presynaptic levels of glutamate and calcium in the cortex and hippocampus as compared to control mice following cocaine exposure. Notably, the gene expression of ionotropic glutamate receptors, AMPA, and NMDA, remained unchanged, as did the expression of Cav1.2 and Cav1.3 channels. Importantly, these findings suggest that LTCC blockage may inhibit behavioral responses to cocaine, most likely by decreasing glutamatergic input in areas related to addiction.
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Affiliation(s)
- Anna Luiza Diniz Lima
- Department of Pharmacology, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Emanuele Guimarães Silva
- Department of Immunology and Biochemistry, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Pablo Leal Cardozo
- Department of Immunology and Biochemistry, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Suélyn Koerich
- Department of Pharmacology, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fabíola Mara Ribeiro
- Department of Immunology and Biochemistry, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fabrício A Moreira
- Department of Pharmacology, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luciene Bruno Vieira
- Department of Pharmacology, ICB, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
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17
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Samokhvalov AV, Levitt E, MacKillop J. Using Measurement-Based Care as a Precision Medicine Strategy for Substance Use Disorders. Curr Psychiatry Rep 2024:10.1007/s11920-024-01495-3. [PMID: 38489141 DOI: 10.1007/s11920-024-01495-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/13/2024] [Indexed: 03/17/2024]
Abstract
PURPOSE OF REVIEW Precision medicine prioritizes characterization of individual patient parameters to optimize care and this review evaluates measurement-based care (MBC) as a strategy for doing so in the treatment of substance use disorders (SUD). Measurement-based care refers to the systematic use of validated assessments to inform diagnosis and treatment planning, with varying frequency of assessments. Despite the seemingly obvious grounds for the use of MBC in treating SUD, systematic implementation to date has been limited. Thus, the goal of this review is to evaluate efforts to date and to stimulate greater consideration of MBC models in addictions programs. RECENT FINDINGS Data from two published randomized controlled trials and findings from pragmatic clinical research highlight the potential utility of MBC in the SUD treatment settings. Despite these findings, the existing literature indicates the high need for larger-scale clinical trials and quality improvement programs. Potential barriers to the implementation of MBC for SUD are outlined at the patient, provider, organization, and system levels, as well as the challenges associated with the use of MBC programs for clinical research. Critical thinking considerations and risk mitigation strategies are offered toward advancing MBC for SUD beyond the current nascent state. Collectively, the existing data confirm that MBC is a suitable and promising strategy for applying a precision medicine approach in SUD treatment, warranting further implementation efforts and scientific inquiry.
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Affiliation(s)
- Andriy V Samokhvalov
- Homewood Research Institute, Guelph, ON, Canada.
- Homewood Health Centre, Guelph, ON, Canada.
- Department of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, ON, Canada.
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada.
- Centre for Addiction and Mental Health, Toronto, ON, Canada.
| | - Emily Levitt
- Homewood Research Institute, Guelph, ON, Canada
- Department of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, ON, Canada
- Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton/McMaster University, Hamilton, ON, Canada
| | - James MacKillop
- Homewood Research Institute, Guelph, ON, Canada
- Department of Psychiatry and Behavioral Neurosciences, McMaster University, Hamilton, ON, Canada
- Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton/McMaster University, Hamilton, ON, Canada
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18
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Mick A, Wecker H, Ziehfreund S, Maul JT, Biedermann T, Zink A. Cracking the code: unveiling the nexus between atopic dermatitis and addictive behavior: a cross-sectional exploration of risk factors. Arch Dermatol Res 2024; 316:102. [PMID: 38485839 PMCID: PMC10940371 DOI: 10.1007/s00403-024-02841-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/18/2024] [Accepted: 02/06/2024] [Indexed: 03/18/2024]
Abstract
Atopic dermatitis (AD) stands as a prevalent chronic inflammatory skin disorder with a global reach. Beyond its cutaneous manifestations, AD is accompanied by comorbidities and psychological issues, significantly compromising the overall quality of life for individuals who suffer from AD. Previous research has evidenced a heightened prevalence of addictive disorders among dermatological patients when compared to the general population. Considering these findings, this study endeavors to examine the prevalence of addictive disorders among AD patients and, furthermore, to discern potential risk factors associated with this comorbidity. Therefore, a cross-sectional study was conducted involving patients with AD diagnosed by dermatologists within a large university hospital in Munich, South Germany, between January 2016 and December 2019. Patients received an anonymous paper-based questionnaire comprising standardized and reliable assessment tools concerning disease severity, quality of life, sexual dysfunction, well-being, and anxiety disorder as well as screening tools for various addictive disorders (compulsive internet use, drug abuse, pathological alcohol consumption, and smoking). Data were analyzed descriptively, and a multivariate logistic regression model was conducted. A total of 208 patients participated in the study, comprising 38% males and 62% females with a mean age of 44.8 ± standard deviation:17.9 years. Females showed a higher mean POEM (Patient-Oriented Eczema Measure) score compared to males (female 14.6 ± 7.8; male 12.5 ± 7.7), as well as a higher DLQI (Dermatology Life Quality Index) (female 8.5 ± 6; male 6.5 ± 6.5). Positive addictions were found in 14.9% for daily smoking, 15.4% for critical alcohol consumption, 16.8% for compulsive internet use, and 5.8% for drug abuse. Younger patients were more likely to be affected by one or multiple addictions than older patients. Patients with at least one addiction showed significantly impaired well-being and increased severe anxiety symptoms. Given the notable prevalence of addictive disorders among individuals with AD, it could be useful to implement systematic screening for such conditions as part of patient-centered care, especially focusing on young AD patients or those displaying concurrent indications of depression or anxiety.
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Affiliation(s)
- Antonia Mick
- Department of Dermatology and Allergy, Technical University of Munich, TUM School of Medicine and Health, Biedersteiner Str. 29, 80802, Munich, Germany
| | - Hannah Wecker
- Department of Dermatology and Allergy, Technical University of Munich, TUM School of Medicine and Health, Biedersteiner Str. 29, 80802, Munich, Germany
| | - Stefanie Ziehfreund
- Department of Dermatology and Allergy, Technical University of Munich, TUM School of Medicine and Health, Biedersteiner Str. 29, 80802, Munich, Germany
| | - Julia-Tatjana Maul
- Department of Dermatology, University Hospital of Zurich, Zurich, Switzerland
- Faculty of Medicine, University of Zürich, Zurich, Switzerland
| | - Tilo Biedermann
- Department of Dermatology and Allergy, Technical University of Munich, TUM School of Medicine and Health, Biedersteiner Str. 29, 80802, Munich, Germany
| | - Alexander Zink
- Department of Dermatology and Allergy, Technical University of Munich, TUM School of Medicine and Health, Biedersteiner Str. 29, 80802, Munich, Germany.
- Division of Dermatology and Venereology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.
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19
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Kelly JF, Levy S, Matlack M. A systematic qualitative study investigating why individuals attend, and what they like, dislike, and find most helpful about, smart recovery, alcoholics anonymous, both, or neither. J Subst Use Addict Treat 2024; 161:209337. [PMID: 38492804 DOI: 10.1016/j.josat.2024.209337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 03/01/2024] [Accepted: 03/12/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Some individuals seeking recovery from alcohol use disorder (AUD) attend Alcoholics Anonymous (AA) while others choose newer alternatives such as Self-Management and Recovery Training ("SMART" Recovery). Some even attend both, while some choose not to attend either. Little is known about why people choose which pathway(s), and what they like, dislike, and find helpful. Greater knowledge could provide insights into the phenomenology of recovery experiences and enhance the efficiency of clinical linkage to these resources. METHODS Cross-sectional, qualitative, investigation (N = 80; n = 20 per condition; 50%female) of individuals attending either AA-only, SMART-only, both, or neither. Participants were asked why they initially chose that pathway, what they like and dislike, and what helps. Responses were coded using an inductive grounded theory approach with utterances recorded and categorized into superordinate domains and rank-ordered in terms of frequency across each question and recovery pathway. RESULTS AA participants reported attending due to, as well as liking and finding most helpful, the common socio-community aspects, whereas SMART attendees went initially due to, as well as found most helpful, the different format as well as the CBT/science-based approach. Similar to AA, however, SMART participants liked the socio-community aspects most. "Both" participants reported liking and finding helpful these perceived relative strengths of each organization. "Neither" participants reported reasons for non-attendance related to lower problem severity - perceiving no need to attend, and anxiety about privacy, but reported using recovery-related change strategies similar to those prescribed by AA, SMART and treatment (e.g., stimulus control, competing behaviors). Common dislikes for AA and SMART centered around irritation due to other members behaviors, a need for more SMART meetings, and negative experiences with SMART facilitators. CONCLUSION Common impressions exist among individuals selecting different recovery pathway choices, but also some differences in keeping with the group dynamics and distinct approaches inherent in AA and SMART. AA attendees appear to go initially for the recovery buoyancy derived from the social ethos and camaraderie of lived experience and may end up staying for the same reason; those choosing SMART, in contrast, appear to attend initially for the CBT/science-based content and different approach but, like AA participants, may end up staying due to the same camaraderie of lived experience. Those participating in both AA and SMART appear to capitalize on the strengths of each organization, suggesting that some can psychologically accommodate and make use of theoretically distinct, and sometimes opposing, philosophies and practices.
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Affiliation(s)
- John F Kelly
- Massachusetts General Hospital, Psychiatry Department, United States of America; Harvard Medical School, Department of Psychiatry, United States of America.
| | - Samuel Levy
- Massachusetts General Hospital, Psychiatry Department, United States of America
| | - Maya Matlack
- Massachusetts General Hospital, Psychiatry Department, United States of America
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20
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Spiegel JS, Salzman MS, Jones I, Hacker L. Camden Coalition Medical-Legal Partnership: Year One Analysis of Civil + Criminal MLP Model in Addiction Medicine Setting. J Law Med Ethics 2024; 51:838-846. [PMID: 38477287 DOI: 10.1017/jme.2024.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
In 2022, the Camden Coalition Medical-Legal Partnership began providing civil and criminal legal services to substance use disorder patients at Cooper University Health Care's Center for Healing. This paper discusses early findings from the program's first year on the efficacy of the provision of criminal-legal representation, which is uncommon among MLPs and critical for this patient population. The paper concludes with takeaways for other programs providing legal services in an addiction medicine setting.
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Affiliation(s)
| | | | - Iris Jones
- COOPER UNIVERSITY HEALTHCARE CENTER FOR HEALING, CAMDEN, NJ, USA
| | - Landon Hacker
- CAMDEN COALITION MEDICAL-LEGAL PARTNERSHIP, CAMDEN, NJ, USA
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21
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Arunogiri S, Lubman D, Foulds J. Addiction Medicine and Psychiatry Workforce Training and Planning across Australia and New Zealand: Commentary on "Education and Training in Addiction Medicine and Psychology across Europe: a EUFAS Survey". Eur Addict Res 2024:1-4. [PMID: 38467117 DOI: 10.1159/000536560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 01/17/2024] [Indexed: 03/13/2024]
Affiliation(s)
- Shalini Arunogiri
- Monash Addiction Research Centre and Eastern Health Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia
- Turning Point, Eastern Health, Melbourne, Victoria, Australia
| | - Dan Lubman
- Monash Addiction Research Centre and Eastern Health Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria, Australia
- Turning Point, Eastern Health, Melbourne, Victoria, Australia
| | - James Foulds
- Department of Psychological Medicine, University of Otago, Christchurch, New Zealand
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22
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Volpatto VL, Schuch JB, Rabelo-da-Ponte FD, Borgonhi EM, de Freitas JC, Ornell F, Proença RA, Pio RP, von Diemen L, Kessler FHP. A network analysis of early trauma and impulsive behavior in individuals with mono- and poly-dependence of alcohol and crack cocaine. Braz J Psychiatry 2024. [PMID: 38467463 DOI: 10.47626/1516-4446-2023-3265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 02/05/2024] [Indexed: 03/13/2024]
Abstract
OBJECTIVE To investigate the relationship between impulsivity and early trauma through a network analysis in individuals diagnosed with different substance use disorders (SUD). METHODS This cross-sectional study includes a sample of 556 men with SUD (195 with alcohol use, 157 with crack cocaine use and 214 with multiple substance use). The Childhood Trauma Questionnaire was applied to investigate early trauma and the Barratt Impulsiveness Scale to assess impulsive behavior. The connection between trauma and impulsivity was assessed using network analysis through Fused Graphical Lasso algorithm. RESULTS No connection was observed between impulsivity and trauma networks in individuals with alcohol use. In cocaine users, networks were linked through the motor domain and sexual abuse nodes. Inversely connections were observed between emotional neglect node and perseverance and not planning nodes. In poly-use, the connection between impulsivity and trauma networks was weak, with cognitive complexity being the node that connects to the trauma network through physical abuse. There were inversely proportional connections between motor domain and emotional neglect nodes, and cognitive instability and physical neglect. CONCLUSIONS Our results suggest that the relationship between the type of early (childhood) trauma and the expression of impulsivity could lead to a different substance use profile.
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Affiliation(s)
- Vanessa Loss Volpatto
- Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), RS, Brazil. Center for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Jaqueline Bohrer Schuch
- Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), RS, Brazil. Center for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Francisco Diego Rabelo-da-Ponte
- Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), RS, Brazil. Center for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil. School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, United Kingdom
| | - Ellen Mello Borgonhi
- Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), RS, Brazil. Center for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Júlia Corrêa de Freitas
- Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), RS, Brazil
| | - Felipe Ornell
- Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), RS, Brazil. Center for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Ramon Agostini Proença
- Center for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Rodrigo Pereira Pio
- Center for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Lisia von Diemen
- Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), RS, Brazil. Center for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Felix Henrique Paim Kessler
- Graduate Program in Psychiatry and Behavioral Sciences, Department of Psychiatry, Universidade Federal do Rio Grande do Sul (UFRGS), RS, Brazil. Center for Drug and Alcohol Research, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
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23
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Daswani RR, Choles CM, Kim DD, Barr AM. A systematic review and meta-analysis of synthetic cathinone use and psychosis. Psychopharmacology (Berl) 2024:10.1007/s00213-024-06569-x. [PMID: 38446172 DOI: 10.1007/s00213-024-06569-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 02/29/2024] [Indexed: 03/07/2024]
Abstract
RATIONALE Synthetic cathinones (SC), commonly referred to as "bath salts", are stimulants resembling the natural alkaloid cathinone found in the khat plant. These substances have the potential to induce serious health risks such as hallucinations, delusions, paranoia and agitation which can lead to substance-induced psychotic disorders. Despite growing concerns, there is a limited understanding of the association between SC consumption and the devolvement of such psychopathologies. METHODS We conducted a systematic review to investigate the frequency of substance-induced psychotic disorder (SIPD) and associated conditions in humans following synthetic cathinone consumption. We qualitatively and quantitatively analyzed SC exposure cases. RESULTS A total of 32 studies were included, with a diverse range of demographics, synthetic cathinone types, and consumption patterns. The proportion of individuals developing psychotic symptoms was reported at 0.380 (Random-effects model, 95% CI 0.289 - 0.475). Additionally, the significant heterogeneity in diagnostic approaches limited our ability to provide a precise estimate of prevalence. CONCLUSIONS Synthetic cathinone consumption is associated with the risk of developing psychotic symptoms as indicated by the prevalence of hallucinations and/or delusions. Due to the lack of information on classifying factors, particularly duration of symptoms, we are unable to conclude synthetic cathinone-induced psychosis. Further research is warranted to elucidate the underlying mechanism linking synthetic cathinone consumption and psychosis. This review underscores the urgency of addressing the growing health risks posed by synthetic cathinone use. Additionally, it highlights the necessity of proper quantification of psychotic symptoms through scales and reporting of classification criteria to accurately diagnose SIPD.
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Affiliation(s)
- Rishika R Daswani
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, V6T1Z3, Canada
- Centre for Heart and Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, Canada
| | - Cassandra M Choles
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, V6T1Z3, Canada
- International Collaboration On Repair Discoveries (ICORD), Vancouver, BC, Canada
| | - David D Kim
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, V6T1Z3, Canada
- British Columbia Mental Health & Substance Use Services Research Institute, Vancouver, BC, Canada
| | - Alasdair M Barr
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, V6T1Z3, Canada.
- British Columbia Mental Health & Substance Use Services Research Institute, Vancouver, BC, Canada.
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24
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Cannella N, Tambalo S, Lunerti V, Scuppa G, de Vivo L, Abdulmalek S, Kinen A, Mackle J, Kuhn B, Solberg Woods LC, Chung D, Kalivas P, Soverchia L, Ubaldi M, Hardiman G, Bifone A, Ciccocioppo R. Long-access heroin self-administration induces region specific reduction of grey matter volume and microglia reactivity in the rat. Brain Behav Immun 2024; 118:S0889-1591(24)00283-6. [PMID: 38452987 DOI: 10.1016/j.bbi.2024.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 02/08/2024] [Accepted: 03/02/2024] [Indexed: 03/09/2024] Open
Abstract
In opioid use disorder (OUD) patients, a decrease in brain grey matter volume (GMV) has been reported. It is unclear whether this is the consequence of prolonged exposure to opioids or is a predisposing causal factor in OUD development. To investigate this, we conducted a structural MRI longitudinal study in NIH Heterogeneous Stock rats exposed to heroin self-administration and age-matched naïve controls housed in the same controlled environment. Structural MRI scans were acquired before (MRI1) and after (MRI2) a prolonged period of long access heroin self-administration resulting in escalation of drug intake. Heroin intake resulted in reduced GMV in various cortical and sub-cortical brain regions. In drug-naïve controls no difference was found between MRI1 and MRI2. Notably, the degree of GMV reduction in the medial prefrontal cortex (mPFC) and the insula positively correlated with the amount of heroin consumed and the escalation of heroin use. In a preliminary gene expression analysis, we identified a number of transcripts linked to immune response and neuroinflammation. This prompted us to hypothesize a link between changes in microglia homeostasis and loss of GMV. For this reason, we analyzed the number and morphology of microglial cells in the mPFC and insula. The number of neurons and their morphology was also evaluated. The primary motor cortex, where no GMV change was observed, was used as negative control. We found no differences in the number of neurons and microglia cells following heroin. However, in the same regions where reduced GMV was detected, we observed a shift towards a rounder shape and size reduction in microglia, suggestive of their homeostatic change towards a reactive state. Altogether these findings suggest that escalation of heroin intake correlates with loss of GMV in specific brain regions and that this phenomenon is linked to changes in microglial morphology.
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Affiliation(s)
- Nazzareno Cannella
- School of Pharmacy, Pharmacology Unit, Center for Neuroscience, University of Camerino, Camerino, Italy.
| | - Stefano Tambalo
- CIMeC, Center for Mind/Brain Science, University of Trento, Trento, Italy
| | - Veronica Lunerti
- School of Pharmacy, Pharmacology Unit, Center for Neuroscience, University of Camerino, Camerino, Italy
| | - Giulia Scuppa
- Center for Neuroscience and Cognitive Systems @UniTn, Istituto Italiano di Tecnologia, Rovereto, Italy
| | - Luisa de Vivo
- School of Pharmacy, Pharmacology Unit, Center for Neuroscience, University of Camerino, Camerino, Italy
| | | | - Analia Kinen
- School of Pharmacy, Pharmacology Unit, Center for Neuroscience, University of Camerino, Camerino, Italy; Faculty of Medicine, Queen's University Belfast, UK
| | - James Mackle
- Faculty of Medicine, Queen's University Belfast, UK
| | - Brittany Kuhn
- Department of Neuroscience, Medical University of South Carolina (MUSC), Charleston (SC), USA
| | | | - Dongjun Chung
- Department of Biomedical Informatics, The Ohio State University, Columbus (OH), USA
| | - Peter Kalivas
- Department of Neuroscience, Medical University of South Carolina (MUSC), Charleston (SC), USA
| | - Laura Soverchia
- School of Pharmacy, Pharmacology Unit, Center for Neuroscience, University of Camerino, Camerino, Italy
| | - Massimo Ubaldi
- School of Pharmacy, Pharmacology Unit, Center for Neuroscience, University of Camerino, Camerino, Italy
| | | | - Angelo Bifone
- Center for Neuroscience and Cognitive Systems @UniTn, Istituto Italiano di Tecnologia, Rovereto, Italy; Department of Molecular Biotechnology and Health Sciences, University of Torino, Italy
| | - Roberto Ciccocioppo
- School of Pharmacy, Pharmacology Unit, Center for Neuroscience, University of Camerino, Camerino, Italy
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25
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Avila-Zozaya M, Zachariou V. Genetic mouse models in opioid research: current status and future directions. J Neural Transm (Vienna) 2024:10.1007/s00702-024-02762-6. [PMID: 38436758 DOI: 10.1007/s00702-024-02762-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
Synthetic and semi-synthetic opioids are prescribed for the management of severe pain conditions, but their long-term use is often leading to physical dependence and addiction disorders. Understanding the complex neurobiology of the opioid system in preclinical models will be essential for the development of safe and efficacious analgesics. With rising numbers of synthetic opioid users and overdose cases, a better understanding of the neuroanatomical and cellular pathways associated with physical dependence and addiction is expected to guide treatment approaches for opioid use disorders. In this commentary, we highlight the importance of advanced genetic mouse models for studying the regional effects of opioid receptors, and we discuss the need of genetic mouse models for the investigation of the regional, circuit and cell compartment-specific role of intracellular mediators of opioid actions.
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Affiliation(s)
- Monserrat Avila-Zozaya
- Department of Pharmacology, Physiology & Biophysics, Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA
| | - Venetia Zachariou
- Department of Pharmacology, Physiology & Biophysics, Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA.
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Lintzeris N, Hayes V, Dunlop AJ. The uptake of long-acting depot buprenorphine for treating opioid dependence in Australia, 2019-2022: longitudinal sales data analysis. Med J Aust 2024. [PMID: 38438113 DOI: 10.5694/mja2.52250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 10/19/2023] [Indexed: 03/06/2024]
Affiliation(s)
- Nicholas Lintzeris
- The University of Sydney, Sydney, NSW
- South Eastern Sydney Local Health District, Sydney, NSW
| | - Victoria Hayes
- South Eastern Sydney Local Health District, Sydney, NSW
- University of New South Wales, Sydney, NSW
| | - Adrian J Dunlop
- Hunter New England Local Health District, Newcastle, NSW
- University of Newcastle, Newcastle, NSW
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Lörsch F, Kollei I, Steins-Loeber S. The effects of a retrieval cue on renewal of conditioned responses in human appetitive conditioning. Behav Res Ther 2024; 176:104501. [PMID: 38520963 DOI: 10.1016/j.brat.2024.104501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 03/25/2024]
Abstract
Contextual renewal of reward anticipation may be one potential mechanism underlying relapse in eating and substance use disorders. We therefore tested retrieval cues, a method derived from an inhibitory retrieval-based model of extinction learning to attenuate contextual renewal using an appetitive conditioning paradigm. A pilot study was carried out in Experiment 1 to validate a differential chocolate conditioning paradigm, in which a specific tray was set up as a conditioned stimulus (CS) for eating chocolate (unconditioned stimulus, US). Using an ABA renewal design in Experiment 2, half of the participants were presented with a retrieval cue in the acquisition phase (group AC) and the other half in the extinction phase (group EC). Presentation of the retrieval cue in the EC was associated with reduced renewal of US-expectancy, while there was a clear renewal effect for US-expectancy in the AC. One limitation was the difference in cue presentations between both groups due to the number of trials in acquisition and extinction. Experiment 3 therefore aimed at replicating the results of Experiment 2, but with fewer cue presentations for the EC to match the AC. No significant group differences were observed indicating no effect of the retrieval cue. Theoretical and clinical implications in light of the differing results are discussed.
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Affiliation(s)
- Frank Lörsch
- Department of Clinical Psychology and Psychotherapy, University of Bamberg, Markusplatz 3, 96047, Bamberg, Germany.
| | - Ines Kollei
- Department of Clinical Psychology and Psychotherapy, University of Bamberg, Markusplatz 3, 96047, Bamberg, Germany
| | - Sabine Steins-Loeber
- Department of Clinical Psychology and Psychotherapy, University of Bamberg, Markusplatz 3, 96047, Bamberg, Germany
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Kalhan S, Schwartenbeck P, Hester R, Garrido MI. People with a tobacco use disorder exhibit misaligned Bayesian belief updating by falsely attributing non-drug cues as worse predictors of positive outcomes compared to drug cues. Drug Alcohol Depend 2024; 256:111109. [PMID: 38354476 DOI: 10.1016/j.drugalcdep.2024.111109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 01/15/2024] [Accepted: 01/19/2024] [Indexed: 02/16/2024]
Abstract
Adaptive behaviours depend on dynamically updating internal representations of the world based on the ever-changing environmental contingencies. People with a substance use disorder (pSUD) show maladaptive behaviours with high persistence in drug-taking, despite severe negative consequences. We recently proposed a salience misattribution model for addiction (SMMA; Kalhan et al., 2021), arguing that pSUD have aberrations in their updating processes where drug cues are misattributed as strong predictors of positive outcomes, but weaker predictors of negative outcomes. We also argued that conversely, non-drug cues are misattributed as weak predictors of positive outcomes, but stronger predictors of negative outcomes. We tested these hypotheses using a multi-cue reversal learning task, with reversals in whether drug or non-drug cues are relevant in predicting the outcome (monetary win or loss). We show that people with a tobacco use disorder (pTUD), do form misaligned internal representations. We found that pTUD updated less towards learning the drug cue's relevance in predicting a loss. Further, when neither drug nor non-drug cue predicted a win, pTUD updated more towards the drug cue being relevant predictors of that win. Our Bayesian belief updating model revealed that pTUD had a low estimated likelihood of non-drug cues being predictors of wins, compared to drug cues, which drove the misaligned updating. Overall, several hypotheses of the SMMA were supported, but not all. Our results implicate that strengthening the non-drug cue association with positive outcomes may help restore the misaligned internal representation in pTUD, and offers a quantifiable, computational account of these updating processes.
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Affiliation(s)
- Shivam Kalhan
- The University of Melbourne, Melbourne School of Psychological Sciences, Melbourne, VIC, Australia.
| | - Philipp Schwartenbeck
- Max Planck Institute for Biological Cybernetics, Tübingen, Baden-Württemberg, Germany; University of Tübingen, Tübingen, Germany
| | - Robert Hester
- The University of Melbourne, Melbourne School of Psychological Sciences, Melbourne, VIC, Australia
| | - Marta I Garrido
- The University of Melbourne, Melbourne School of Psychological Sciences, Melbourne, VIC, Australia; Graeme Clark Institute for Biomedical Engineering, Melbourne, VIC, Australia
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Borelle C, Forner E. Reality check. The issue of social plausibility in Virtual reality therapy with addiction patients. Soc Sci Med 2024; 344:116653. [PMID: 38354480 DOI: 10.1016/j.socscimed.2024.116653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/25/2024] [Accepted: 02/02/2024] [Indexed: 02/16/2024]
Abstract
In France, virtual reality has been experimented since 2016 to address addictive behaviors. The existing literature insists on the "immersive" dimension of the technology as a significant factor in the efficacy of exposure. An ethnographic approach, however, suggests that the realism criterion should be reassessed. Based on a fieldwork conducted in the addictology department of a French hospital that made use of Virtual reality therapy (VRT), the article shows that it is a form of technical reiteration designed to develop reflexivity about one's actions, provoking the craving so that it can be domesticated. The patient's engagement in "as if" mode is facilitated by the therapist's work in mapping the patient's addictive practices, personalizing the exposure situations, and elaborating the simulation as being part of a practical experiment. While the question of graphic realism does not seem especially problematic, the question of social plausibility can put the simulation operation under strain.
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Affiliation(s)
- Céline Borelle
- CEMS (EHESS-CNRS-INSERM), France; SENSE (Orange), France.
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Cameron L, Ride J, Devlin N. An Economic Model of Gambling Behaviour: A Two-Stage Approach. J Gambl Stud 2024; 40:65-81. [PMID: 35867267 PMCID: PMC10904484 DOI: 10.1007/s10899-022-10146-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2022] [Indexed: 10/17/2022]
Abstract
Gambling can cause significant harms and these can result in a net negative utility from participation, although lower levels of participation have potential benefits and can yield positive net utility. It is therefore important to understand and distinguish between these two stages of gambling behaviour. Currently, economic models have had limited focus on explaining why someone would gamble despite it yielding a negative utility. Here, we present a two-stage model, motivated by empirical literature and intuitive assumptions, that improves on existing economic models by distinguishing between the likelihood of gambling participation and of gambling that yields a negative utility. The model's predictions are empirically testable, consistent with existing literature, and add new insights. The model's ability to distinguish between the two stages helps to inform interventions that aim to reduce the prevalence of gambling-related harm while avoiding the need for restrictive approaches that aim to eliminate gambling altogether.
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Affiliation(s)
- Lachlan Cameron
- Health Economics Unit, School of Population and Global Health, The University of Melbourne, 207 Bouverie St, Carlton, VIC, 3053, Australia.
| | - Jemimah Ride
- Health Economics Unit, School of Population and Global Health, The University of Melbourne, 207 Bouverie St, Carlton, VIC, 3053, Australia
| | - Nancy Devlin
- Health Economics Unit, School of Population and Global Health, The University of Melbourne, 207 Bouverie St, Carlton, VIC, 3053, Australia
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Nestor LJ, Luijten M, Ziauddeen H, Regenthal R, Sahakian BJ, Robbins TW, Ersche KD. The Modulatory Effects of Atomoxetine on Aberrant Connectivity During Attentional Processing in Cocaine Use Disorder. Biol Psychiatry Cogn Neurosci Neuroimaging 2024; 9:314-325. [PMID: 37619670 DOI: 10.1016/j.bpsc.2023.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/14/2023] [Accepted: 08/01/2023] [Indexed: 08/26/2023]
Abstract
BACKGROUND Cocaine use disorder is associated with cognitive deficits that reflect dysfunctional processing across neural systems. Because there are currently no approved medications, treatment centers provide behavioral interventions that have only short-term efficacy. This suggests that behavioral interventions are not sufficient by themselves to lead to the maintenance of abstinence in patients with cocaine use disorder. Self-control, which includes the regulation of attention, is critical for dealing with many daily challenges that would benefit from medication interventions that can ameliorate cognitive neural disturbances. METHODS To address this important clinical gap, we conducted a randomized, double-blind, placebo-controlled, crossover design study in patients with cocaine use disorder (n = 23) and healthy control participants (n = 28). We assessed the modulatory effects of acute atomoxetine (40 mg) on attention and conflict monitoring and their associated neural activation and connectivity correlates during performance on the Eriksen flanker task. The Eriksen flanker task examines basic attentional processing using congruent stimuli and the effects of conflict monitoring and response inhibition using incongruent stimuli, the latter of which necessitates the executive control of attention. RESULTS We found that atomoxetine improved task accuracy only in the cocaine group but modulated connectivity within distinct brain networks in both groups during congruent trials. During incongruent trials, the cocaine group showed increased task-related activation in the right inferior frontal and anterior cingulate gyri, as well as greater network connectivity than the control group across treatments. CONCLUSIONS The findings of the current study support a modulatory effect of acute atomoxetine on attention and associated connectivity in cocaine use disorder.
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Affiliation(s)
- Liam J Nestor
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom.
| | - Maartje Luijten
- Behavioural Science Institute, Radboud University, Nijmegen, the Netherlands
| | - Hisham Ziauddeen
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom; Fiona Stanley and Fremantle Hospital Group, Perth, Australia
| | - Ralf Regenthal
- Division of Clinical Pharmacology, Rudolf-Boehm-Institute of Pharmacology and Toxicology, Leipzig University, Leipzig, Germany
| | - Barbara J Sahakian
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom
| | - Trevor W Robbins
- Department of Psychology, University of Cambridge, Cambridge, United Kingdom
| | - Karen D Ersche
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom; Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, University of Heidelberg, Mannheim, Germany.
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32
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Christensen E, Albertella L, Chamberlain SR, Brydevall M, Suo C, Grant JE, Yücel M, Lee RSC. The neurocognitive correlates of non-substance addictive behaviors. Addict Behav 2024; 150:107904. [PMID: 37984220 DOI: 10.1016/j.addbeh.2023.107904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/19/2023] [Accepted: 11/02/2023] [Indexed: 11/22/2023]
Abstract
Neurocognitive deficits have been implicated as transdiagnostic risk markers of substance use disorders. However, these have yet to be comprehensively evaluated in other, non-substance addictions. In a large, general community sample (N = 475) the present study evaluated the neurocognitive correlates of problem alcohol use and three non-substance-related addictive behaviors: addictive eating (AE), problematic pornography use (PPU), and problematic use of the internet (PUI), to identify potential shared and distinct neurocognitive correlates. A sample of Australian residents (54.4 % female M[SD] age = 32.4[11.9] years) completed a comprehensive online assessment of neurocognitive tasks tapping into eight distinct expert-endorsed domains purportedly associated with addiction. Multiple linear regressions with bootstrapping were used to examine associations among each addictive behavior of interest and neurocognition, trait impulsivity, and compulsivity, as well as key covariates. Neurocognition was differentially associated with each addictive behavior. None of the neurocognitive domains were significantly associated with problematic alcohol use or AE (p >.05), poorer performance monitoring was significantly associated with higher levels of PPU and PUI (β = -0.10, p =.049; β = -0.09, p =.028), and a preference for delayed gratification was associated with more severe PUI (β = -0.10, p =.025). Our findings have theoretical implications for how we understand non-substance addiction and suggest the need for a more nuanced approach to studying addictive behaviors that take into account the underlying neurocognitive mechanisms associated with each type of addiction.
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Affiliation(s)
- Erynn Christensen
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, VIC, Australia.
| | - Lucy Albertella
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, VIC, Australia
| | - Samuel R Chamberlain
- Department of Psychiatry, University of Southampton, Southampton, the United Kingdom of Great Britain and Northern Ireland; Southern Health NHS Foundation Trust, Southampton, the United Kingdom of Great Britain and Northern Ireland
| | - Maja Brydevall
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, VIC, Australia
| | - Chao Suo
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, VIC, Australia
| | - Jon E Grant
- Department of Psychiatry & Behavioral Neuroscience, University of Chicago, Pritzker School of Medicine, Chicago, IL, USA
| | - Murat Yücel
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, VIC, Australia; QIMR Berghofer Medical Research Institute, Herston, QLD, Australia
| | - Rico Sze Chun Lee
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, VIC, Australia; Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, VIC, Australia
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33
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Gomes MN, Reid JL, Hammond D. The effect of branded versus standardized e-cigarette packaging and device designs: an experimental study of youth interest in vaping products. Public Health 2024:S0033-3506(24)00056-8. [PMID: 38429123 DOI: 10.1016/j.puhe.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 03/03/2024]
Abstract
OBJECTIVES Standardized ('plain') packaging is effective in reducing the appeal of cigarettes among young people. This study examined the impact of plain packaging and brand imagery on interest in trying e-cigarettes among youth. STUDY DESIGN Experimental design. METHODS Two online experiments were conducted in February 2020 as part of the ITC Youth Tobacco & Vaping Survey, conducted with 13,624 16- to 19-year-olds in Canada, England, and the USA. In the between-group Experiment 1, participants were randomized to view a set of 3 e-cigarette brands, in either their original external packaging ('branded' condition) or standardized olive-green packaging ('standardized' condition), and asked to select the product they would be most interested in trying. The within-group Experiment 2 examined brand imagery directly on devices, including potential differences in appeal among subgroups. Each participant viewed 4 pod-style e-cigarette devices: one 'plain' and 3 in colourful 'skins'. Logistic regression models were conducted to test the effect of condition, adjusting for demographics, smoking and vaping status. RESULTS In Experiment 1, participants in the 'standardized' packaging condition were significantly more likely to indicate 'I have no interest in trying any of these products' (72.3%) than those in the 'branded' condition (66.9%, AOR 1.45, 95% CI 1.33-1.59). Experiment 2 results indicated differences in e-cigarette appeal by sex in the selection of male- and female-oriented designs, and by cannabis use for a Rastafarian-themed design. CONCLUSIONS Brand imagery on e-cigarettes can target products to specific subgroups. Removal of imagery, in the form of standardized packaging, has the potential to reduce interest in trying e-cigarettes among young people.
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Affiliation(s)
- M N Gomes
- School of Public Health Sciences, University of Waterloo, Canada
| | - J L Reid
- School of Public Health Sciences, University of Waterloo, Canada
| | - D Hammond
- School of Public Health Sciences, University of Waterloo, Canada.
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Bunaim MK, Damanhuri HA, Yow HY, Yaakob NS, Makmor-Bakry M, Azmi N. Understanding methiopropamine, a new psychoactive substance: an in-depth review on its chemistry, pharmacology and implications to human health. Int J Legal Med 2024:10.1007/s00414-024-03201-7. [PMID: 38424369 DOI: 10.1007/s00414-024-03201-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 02/21/2024] [Indexed: 03/02/2024]
Abstract
Methiopropamine or 1-(thiophen-2-yl)-2-methylaminopropane (MPA) is a thiophene ring-based structural analogue of methamphetamine, first synthesized in 1942 but become popular when it started to be available for purchase on websites selling 'legal highs' since 2010. While it is legally controlled in many countries, it remains readily accessible and frequently encountered in recreational settings. The growing prevalence of MPA use results in new therapeutic challenges. Relatively few studies have focused on its pharmacodynamics and pharmacokinetics, making it important to better understand its potential risks and harmful effects in humans in terms of its toxicity. This review provides a comprehensive profiling of MPA toxicological properties, including its chemical properties, analytical methods, prevalence, patterns of use, and legal status. Additionally, it discusses the drug's effects on the central nervous system, its potential for addiction, and its adverse physical and mental health effects. Improving the understanding of safety aspects of MPA and how it imposes health threats for public health will guide the development of therapeutic approach of its intoxication and guide the authorities in deciding its legal status.
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Affiliation(s)
- Mohd Khairulanwar Bunaim
- Faculty of Pharmacy, Universiti Kebangsaan Malaysia, 50300, Kuala Lumpur, Malaysia
- Department of Biomedical Sciences and Therapeutics, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah (UMS), 88400, Kota Kinabalu, Sabah, Malaysia
| | - Hanafi Ahmad Damanhuri
- Faculty of Medicine, Universiti Kebangsaan Malaysia, 56000, Cheras, Kuala Lumpur, Malaysia
| | - Hui-Yin Yow
- Department of Pharmaceutical Life Sciences, Faculty of Pharmacy, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Nor Syafinaz Yaakob
- Faculty of Pharmacy, Universiti Kebangsaan Malaysia, 50300, Kuala Lumpur, Malaysia
| | - Mohd Makmor-Bakry
- Faculty of Pharmacy, Universiti Kebangsaan Malaysia, 50300, Kuala Lumpur, Malaysia
| | - Norazrina Azmi
- Faculty of Pharmacy, Universiti Kebangsaan Malaysia, 50300, Kuala Lumpur, Malaysia.
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Myerson J, Montelongo M, Rufino K, Patriquin M, Salas R, Oh H. Examination of reward processing dysfunctions in the left dorsal striatum and other brain regions among psychiatric inpatients with substance use. Drug Alcohol Depend 2024; 256:111097. [PMID: 38266574 PMCID: PMC10923081 DOI: 10.1016/j.drugalcdep.2024.111097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/26/2024]
Abstract
BACKGROUND Substance misuse is a major public health issue and research has established attenuated reward responses to drug cues in those who misuse substances. Yet, little is known about whether the expectation of natural reinforcers engages distinct brain regions in substance misuse. METHODS Using functional magnetic resonance imaging (fMRI), we delivered juice at expected and unexpected times to examine reward processing dysfunctions. We focused on the responses within the left dorsal striatum (DS) in individuals with high-risk substance use (HRU, n = 65), low-risk substance use (psychiatric controls, PC, n = 65), and healthy controls (HC, n = 65). Additionally, we investigated whether the dysfunction in reward processing within the left DS is correlated with other common psychiatric symptoms. Finally, we conducted a comprehensive analysis of the whole brain to investigate other non-hypothesized brain regions. RESULTS Compared to HC, HRU displayed lower responses to juice delivery (i.e., reward) in the left DS (p <.05). The whole-brain analysis demonstrated that compared to HC, HRU displayed significantly lower responses to reward stimuli in various brain regions, including the bilateral caudate, temporal gyrus, left frontal gyrus, middle frontal gyrus, and right thalamus. LIMITATIONS Participants were individuals with polysubstance use; therefore, we were not able to examine the effects of individual substances. CONCLUSIONS Our findings suggest that HRU displays lower responses to reward stimuli within the left DS and other non-hypothesized brain regions. Our findings may help further elucidate reward processing dysfunctions related to substance misuse.
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Affiliation(s)
| | | | - Katrina Rufino
- Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA; The Menninger Clinic, Houston, TX, USA; The University of Houston Downtown, Houston, TX 77002, USA
| | - Michelle Patriquin
- Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA; The Menninger Clinic, Houston, TX, USA
| | - Ramiro Salas
- Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA; The Menninger Clinic, Houston, TX, USA; Center for Translational Research on Inflammatory Michael E. DeBakey VA Medical Center, Houston, TX, USA; Department of Neuroscience, Baylor College of Medicine, Houston, TX, USA
| | - Hyuntaek Oh
- Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX, USA; The Menninger Clinic, Houston, TX, USA.
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36
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Kirsch DE, Ray LA, Wassum KM, Grodin EN. Anterior cingulate and medial prefrontal cortex alcohol cue reactivity varies as a function of drink preference in alcohol use disorder. Drug Alcohol Depend 2024; 256:111123. [PMID: 38367535 DOI: 10.1016/j.drugalcdep.2024.111123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 01/11/2024] [Accepted: 02/05/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND Functional MRI visual cue reactivity studies have not considered that brain responses to various alcohol-containing beverage types may vary as a function of an individual's drinking patterns and preferences. This study tested whether the brain's reward system responds differently to visual cues associated with an individuals' most commonly consumed ("preferred") alcohol beverage compared with less commonly consumed ("non-preferred") alcohol beverages in individuals with alcohol use disorder (AUD). METHODS Participants (N=70) with current AUD completed a standard visual alcohol cue reactivity procedure during fMRI and reported recent alcohol use through the Timeline Followback interview. Alcohol use patterns were used to infer drink preference. Repeated measure ANCOVAs were used to evaluate differences in subjective craving (alcohol urge) and neural reactivity to cues of individual's "preferred" versus "non-preferred" alcohol beverages. RESULTS Fifty-four (77%) participants were determined to have a "preferred" alcohol beverage, as defined by their pattern of alcohol use. These participants reported greater subjective alcohol urge (p=0.02) and activation in the anterior cingulate cortex (ACC) (p=0.005) and medial prefrontal cortex (mPFC) (p=0.001)) in response to visual cues associated with their "preferred" versus "non-preferred" alcohol beverage. Individuals with an alcohol preference did not differ from those with no alcohol preference on subjective or neural responses to their "preferred" and "non-preferred" alcohol cues. DISCUSSION Results suggest alcohol cue-elicited subjective and neural responses vary as a function of alcohol beverage preference in individuals with AUD and a behaviorally defined alcohol preference. Stronger ACC and mPFC activation may reflect greater subjective value of an individual's "preferred" alcohol beverage cue.
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Affiliation(s)
- Dylan E Kirsch
- Department of Psychology, University of California, Los Angeles, 1285 Franz Hall, Box 951563, Los Angeles, CA 90095-1563, USA
| | - Lara A Ray
- Department of Psychology, University of California, Los Angeles, 1285 Franz Hall, Box 951563, Los Angeles, CA 90095-1563, USA; Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, USA.
| | - Kate M Wassum
- Department of Psychology, University of California, Los Angeles, 1285 Franz Hall, Box 951563, Los Angeles, CA 90095-1563, USA
| | - Erica N Grodin
- Department of Psychology, University of California, Los Angeles, 1285 Franz Hall, Box 951563, Los Angeles, CA 90095-1563, USA; Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, USA
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37
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Shankar K, Ramborger J, Bonnet-Zahedi S, Carrette LLG, George O. Acute nicotine intake increases feeding behavior through decreasing glucagon signaling in dependent male and female rats. Horm Behav 2024; 159:105447. [PMID: 37926623 DOI: 10.1016/j.yhbeh.2023.105447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/26/2023] [Accepted: 10/20/2023] [Indexed: 11/07/2023]
Abstract
Chronic use of nicotine is known to dysregulate metabolic signaling through altering circulating levels of feeding-related hormones, contributing to the onset of disorders like type 2 diabetes. However, little is known about the acute effects of nicotine on hormonal signaling. We previously identified an acute increase in food intake following acute nicotine, and we sought to determine whether this behavior was due to a change in hormone levels. We first identified that acute nicotine injection produces an increase in feeding behavior in dependent rats, but not nondependent rats. We confirmed that chronic nicotine use increases circulating levels of insulin, leptin, and ghrelin, and these correlate with rats' body weight and food intake. Acute nicotine injection in dependent animals decreased circulating GLP-1 and glucagon levels, and administration of glucagon prior to acute nicotine injection prevented the acute increase in feeding behavior. Thus, acute nicotine injection increases feeding behavior in dependent rats by decreasing glucagon signaling.
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Affiliation(s)
- Kokila Shankar
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA; The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Jarryd Ramborger
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA
| | - Sélène Bonnet-Zahedi
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA; Institut de Neurosciences de la Timone, Aix-Marseille Université, Marseille 13005, France
| | - Lieselot L G Carrette
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA
| | - Olivier George
- Department of Psychiatry, University of California San Diego, La Jolla, CA 92093, USA.
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Andersen PA, Thomsen AH, Hasselstrøm JB, Andersen FD, Thomsen JH, Jornil JR, Andersen CU. Exploring death scenes and circumstances in fatal opioid poisonings: Insights for preventive strategies using forensic autopsy cases in Western Denmark. Forensic Sci Int 2024; 356:111948. [PMID: 38330673 DOI: 10.1016/j.forsciint.2024.111948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/04/2024] [Accepted: 01/24/2024] [Indexed: 02/10/2024]
Abstract
INTRODUCTION Fatal opioid poisoning is a growing global issue. This study aims to describe circumstances surrounding fatal opioid poisonings by examining death scenes, demographics, and information from bystanders with the goal of informing prevention efforts. METHODS We extracted data from the autopsy reports of 327 forensic autopsy cases with fatal poisoning involving methadone and/or morphine from 2013-2020. RESULTS Fatal opioid poisonings occurred in both rural and urban areas. Death scene was the decedent's own home and a relative's or friend's home in 62% and 21%, respectively. The decedent died alone in 64% of the cases while other people were staying at the same address while death occurred in 30%. Decedents aged 15-34 years were more likely to die with other people staying at the same address than persons aged > 44 years (OR±SD: 2.3 ± 0.9, p = 0.005), and had lower postmortem blood methadone concentrations compared to persons > 34 years (Median [interquartile range]: 0.36 [0.23-0.62] vs 0.63 [0.28-1.2] mg/kg, p = 0.002). Female sex was more prevalent, and persons using illegal drugs were less prevalent in decedents aged > 44 years compared to those with age 15-44 years (29% vs 20%, p = 0.05% and 67% vs 89%, p < 0.001, respectively). Other psychoactive drugs were detected in 97% of decedents, mainly benzodiazepines (80%). CONCLUSIONS Preventive strategies based on our findings include the need for harm reduction initiatives in both urban and rural areas, recognizing symptoms of fatal poisoning, and awareness of low tolerance among younger age groups. Urgent attention should be given to avoiding opioid use alone, particularly among older individuals, including women using prescribed opioids. Conveying the risks of polydrug use to all age groups is essential, especially co-use of sedative drugs.
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Affiliation(s)
- Peter Andreas Andersen
- Department of Forensic Science, Aarhus University, Denmark; Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Denmark.
| | | | | | | | - Jakob Hartvig Thomsen
- Antidote Danmark, Denmark; Department of Cardiology, Bispebjerg and Frederiksberg Hospital, Denmark
| | | | - Charlotte Uggerhøj Andersen
- Department of Forensic Science, Aarhus University, Denmark; Department of Clinical Pharmacology, Aarhus University Hospital, Denmark
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Fiedler I, Ante L, Meduna MV, Steinmetz F, Kairouz S, Costes JM. Simulated Gambling: An Explorative Study Based on a Representative Survey. J Gambl Stud 2024; 40:255-274. [PMID: 36757603 DOI: 10.1007/s10899-023-10190-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2023] [Indexed: 02/10/2023]
Abstract
Gambling usually involves wagering real money but can also be conducted with virtual money, chips, or coins. This phenomenon is sometimes referred to as simulated gambling, social gambling, or play money gambling. This study explores correlations and transitions between simulated gambling and real money gambling with an emphasis on gambling-related harms and public health concerns. The analysis is based on a national representative survey of 46,136 German Internet users which included 5,191 real money online gamblers (RMG), 54% of whom had also participated in simulated gambling (SG). The data set is divided into subsamples based on participation in SG to carve out significant differences in these groups in regard to various socio demographics, gambling patterns, and gambling problems. Regression models are used to predict RMG frequency, participation in SG, SG participation frequency, and problem gambling. The results show a clear proximity between SG and RMG with 17% of the total sample and 54% of problem gamblers reporting being "quite sure" or "certain" that simulated gambling had led them to gambling with real money. While 7% of individuals that engaged exclusively in RMG showed gambling problems, the rate is 33% for those that engaged in both RMG and SG. Regression results provide further evidence of a relationship between SG and problem gambling, although with differing effect sizes for different game forms. We argue that SG can be both a substitute and a primer for RMG, especially for problem gamblers.
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Affiliation(s)
- Ingo Fiedler
- Department of Sociology and Anthropology, Research Chair on Gambling, Concordia University, Montréal, Canada.
- Blockchain Research Lab, Hamburg, Germany.
| | | | - Marc von Meduna
- Department of Health and Society, Gambling Research, University of Bremen, Bremen, Germany
| | - Fred Steinmetz
- Blockchain Research Lab, Hamburg, Germany
- Faculty of Business, Economics & Social Sciences, Universität Hamburg, Hamburg, Germany
| | - Sylvia Kairouz
- Department of Sociology and Anthropology, Research Chair on Gambling, Concordia University, Montréal, Canada
| | - Jean-Michel Costes
- Department of Sociology and Anthropology, Research Chair on Gambling, Concordia University, Montréal, Canada
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O'Callaghan D, Lambert S. The experience of drug-related client loss for healthcare professionals who support people in addiction. J Subst Use Addict Treat 2024; 158:209236. [PMID: 38072385 DOI: 10.1016/j.josat.2023.209236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 06/19/2023] [Accepted: 11/30/2023] [Indexed: 03/18/2024]
Abstract
INTRODUCTION Addiction support and recovery is a multi-faceted support context in which practitioners work with clients who present with increased mortality risks. Drug-related deaths are understood to be a risk factor for complicated grief-reactions but, to date, research has neglected to explore the intricacies of drug-related client loss for practitioners who work with clients experiencing addiction. Due to wider expectations of professional endurance and the demanding nature of health care, grief-related reactions associated with the loss of a client may go unprocessed and, therefore, result in long-term health implications. METHOD Fifteen health care professionals took part in individual semi-structured interviews, which were analyzed using reflexive thematic analysis. Participants represented various disciplines in addiction support and recovery, including homelessness, inclusion health, addiction, and emergency medicine. RESULTS Three core themes emerged encapsulating the experience of drug-related bereavement for HCPs who support people experiencing addiction, as follows: (i) Grief Beneath the Surface, (ii) The Cost of Caring, and (iii) Finding Closure. The findings identified acute grief-related reactions in HCPs such as self-blame and shame, alongside fears of litigation and questions of clinical competency. Participants' accounts of drug-related client loss emphasized a deep professional connection with those that they work with, with grief-responses akin to the loss of peers, family members, and other close connections. The bereavement experience was complicated by unique compounding variables associated with drug-related deaths, but also by incongruity between their emotional responses to death and their professional responsibilities. CONCLUSIONS This article highlights the complex nature of drug-related client loss, and despite their social positioning as experts in their field, HCPs' reactions to client deaths were predominantly human responses to loss. The article identified a need for targeted postvention protocols that address complicated grief while also allowing staff to resume occupational functioning in a measured manner.
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Affiliation(s)
- Daniel O'Callaghan
- School of Applied Psychology, University College Cork, North Mall, Cork Enterprise Centre, Cork, Ireland.
| | - Sharon Lambert
- School of Applied Psychology, University College Cork, North Mall, Cork Enterprise Centre, Cork, Ireland.
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Acuff SF, Ellis JD, Rabinowitz JA, Hochheimer M, Hobelmann JG, Huhn AS, Strickland JC. A brief measure of non-drug reinforcement: Association with treatment outcomes during initial substance use recovery. Drug Alcohol Depend 2024; 256:111092. [PMID: 38266572 PMCID: PMC10922801 DOI: 10.1016/j.drugalcdep.2024.111092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 12/19/2023] [Accepted: 01/09/2024] [Indexed: 01/26/2024]
Abstract
BACKGROUND Translational research demonstrates that drug use is inversely associated with availability and engagement with meaningful non-drug reinforcers. Evaluation of non-drug reinforcement in treatment-receiving clinical populations is limited, likely owing to the time intensive nature of existing measures. This study explores the association of non-drug reinforcers with treatment outcomes using a novel, brief measure of past month non-drug reinforcement quantifying three elements: relative frequency, access, and enjoyability. METHODS Respondents enrolled in substance use treatment (residential, intensive outpatient, and medically managed withdrawal) in clinics across the United States (N = 5481) completed standardized assessments of non-drug reinforcement and treatment outcomes (i.e., return to use and life satisfaction) one-month after treatment discharge. Non-drug reinforcement measures (availability, engagement, enjoyability) were used as predictors of return to use and life satisfaction using generalized linear models. RESULTS Non-drug reinforcement indices were associated with return to use and life satisfaction in unadjusted models (e.g., 12.4 % versus 58.3 % return to use for those with the highest and lowest availability, respectively). Consistent results were observed in models adjusted for sociodemographic variables and risk factors (i.e., sleep disturbance, anhedonia, stress). Comparisons by drug class generally showed lower non-drug reinforcement among patients reporting heroin or methamphetamine as their primary drug. CONCLUSIONS Results highlight the importance of non-drug reinforcement during the first month following treatment. Rapid measurement of non-drug reinforcement in stepped care settings may illuminate critical deficits in early stages of behavior change, identify those at greatest risk for return to use, and provide targets for treatment to improve recovery trajectories.
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Affiliation(s)
- Samuel F Acuff
- Recovery Research Institute, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jennifer D Ellis
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224, USA; Ashley Addiction Treatment, Havre de Grace, MD, USA
| | - Jill A Rabinowitz
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Martin Hochheimer
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224, USA
| | - J Gregory Hobelmann
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224, USA; Ashley Addiction Treatment, Havre de Grace, MD, USA
| | - Andrew S Huhn
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224, USA; Ashley Addiction Treatment, Havre de Grace, MD, USA
| | - Justin C Strickland
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 5510 Nathan Shock Drive, Baltimore, MD 21224, USA; Ashley Addiction Treatment, Havre de Grace, MD, USA.
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Brennan M, Dyer S, Jonasson J, Salvia J, Segal L, Serino E, Steil J. The policy case for designating EMS teams for vulnerable patient populations: Evidence from an intervention in Boston. Health Care Manag Sci 2024; 27:72-87. [PMID: 37043099 PMCID: PMC10091313 DOI: 10.1007/s10729-023-09635-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 03/03/2023] [Indexed: 04/13/2023]
Abstract
This study documents more than five years of analysis that drove the policy case, deployment, and retrospective evaluation for an innovative service model that enables Boston Emergency Medical Services (EMS) to respond quickly and effectively to investigation incidents in an area of heavy need in Boston. These investigation incidents are typically calls for service from passers-by or other third-party callers requesting that Boston EMS check in on individuals, often those who may appear to have an altered mental status or to be unhoused. First, this study reports the pre-intervention analytics in 2017 that built the policy case for service segmentation, a new Community Assistance Team designated "Squad 80" that primarily responds to investigation incidents in one broad area of the city with high rates of substance abuse and homelessness, helping patients who often refuse ambulance transport connect to social services. Second, this study reports a post-intervention, observational evaluation of its operational advantages and trade-offs. We observe that incidents involving the Community Assistance Team have significantly shorter response times and result in fewer transports to emergency departments than investigation incidents not involving the unit, leading to fewer ambulance unit-hours utilized across the system. This study documents the descriptive analytics that built the successful policy case for a substantive change in the healthcare-delivery supply chain in Boston and how this change offers operational advantages. It is written to be an accessible guide to the analysts and policy makers considering emergency services segmentation, an important frontier in equitable public-service delivery.
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Affiliation(s)
- Mark Brennan
- Boston Emergency Medical Services, 785 Albany Street, Boston, MA 02118 USA
- Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02134 USA
| | - Sophia Dyer
- Boston Emergency Medical Services, 785 Albany Street, Boston, MA 02118 USA
| | - Jonas Jonasson
- Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02134 USA
| | - James Salvia
- Boston Emergency Medical Services, 785 Albany Street, Boston, MA 02118 USA
| | - Laura Segal
- Boston Emergency Medical Services, 785 Albany Street, Boston, MA 02118 USA
| | - Erin Serino
- Boston Emergency Medical Services, 785 Albany Street, Boston, MA 02118 USA
| | - Justin Steil
- Boston Emergency Medical Services, 785 Albany Street, Boston, MA 02118 USA
- Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02134 USA
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Negus SS. An economon model of drug addiction. Psychopharmacology (Berl) 2024; 241:417-425. [PMID: 38277005 PMCID: PMC10884072 DOI: 10.1007/s00213-024-06535-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 01/14/2024] [Indexed: 01/27/2024]
Abstract
The term "economon" (i:'ka.nə.muhn; plural: economa) is introduced here to describe an economic unit composed of two participants engaged in mutually reinforcing operant behavior. Economa are basic building blocks of transactional behavior that aggregate in social networks called economies. In a drug-addiction economon, operant behavior by one participant (the "supplier") provides an addictive drug as a reinforcer to the second participant (a "Person with Substance Use Disorder; PwSUD"). Reciprocal operant behavior by the PwSUD usually provides money as a reinforcer to the supplier. After defining the features of the drug-addiction economon, this article discusses its implications for (1) prevalence and virulence of drug addiction, (2) opportunities for drug-addiction research in general, (3) the "brain-disease model of addiction" in particular, and (4) factors that mitigate harm or promote risk of drug addiction. The economon model is intended to provide a novel perspective on the uniquely human disorder of drug addiction.
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Affiliation(s)
- S Stevens Negus
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, 410 N. 12 St, Richmond, VA, 23298, USA.
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Rush AJ, Gore-Langton RE, Bart G, Bradley KA, Campbell CI, McKay J, Oslin DW, Saxon AJ, Winhusen TJ, Wu LT, Moran LM, Tai B. Tools to implement measurement-based care (MBC) in the treatment of opioid use disorder (OUD): toward a consensus. Addict Sci Clin Pract 2024; 19:14. [PMID: 38419116 PMCID: PMC10902994 DOI: 10.1186/s13722-024-00446-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 02/13/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND The prevalence and associated overdose death rates from opioid use disorder (OUD) have dramatically increased in the last decade. Despite more available treatments than 20 years ago, treatment access and high discontinuation rates are challenges, as are personalized medication dosing and making timely treatment changes when treatments fail. In other fields such as depression, brief measures to address these tasks combined with an action plan-so-called measurement-based care (MBC)-have been associated with better outcomes. This workgroup aimed to determine whether brief measures can be identified for using MBC for optimizing dosing or informing treatment decisions in OUD. METHODS The National Institute on Drug Abuse Center for the Clinical Trials Network (NIDA CCTN) in 2022 convened a small workgroup to develop consensus about clinically usable measures to improve the quality of treatment delivery with MBC methods for OUD. Two clinical tasks were addressed: (1) to identify the optimal dose of medications for OUD for each patient and (2) to estimate the effectiveness of a treatment for a particular patient once implemented, in a more granular fashion than the binary categories of early or sustained remission or no remission found in The Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5). DISCUSSION Five parameters were recommended to personalize medication dose adjustment: withdrawal symptoms, opioid use, magnitude (severity and duration) of the subjective effects when opioids are used, craving, and side effects. A brief rating of each OUD-specific parameter to adjust dosing and a global assessment or verbal question for side-effects was viewed as sufficient. Whether these ratings produce better outcomes (e.g., treatment engagement and retention) in practice deserves study. There was consensus that core signs and symptoms of OUD based on some of the 5 DSM-5 domains (e.g., craving, withdrawal) should be the basis for assessing treatment outcome. No existing brief measure was found to meet all the consensus recommendations. Next steps would be to select, adapt or develop de novo items/brief scales to inform clinical decision-making about dose and treatment effectiveness. Psychometric testing, assessment of acceptability and whether the use of such scales produces better symptom control, quality of life (QoL), daily function or better prognosis as compared to treatment as usual deserves investigation.
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Affiliation(s)
- A John Rush
- Duke-NUS Medical School, The National University of Singapore, Duke University School of Medicine, Singapore, Singapore
| | | | - Gavin Bart
- School of Medicine & Division of Medicine at Hennepin Healthcare, University of Minnesota, Minneapolis, MN, USA
| | | | - Cynthia I Campbell
- Kaiser Permanente Northern California Division of Research, Oakland, CA, USA
| | - James McKay
- Penn Center on the Continuum of Care in the Addictions, Philadelphia VA Center of Excellence in Substance Addiction Treatment and Education, University of Pennsylvania, Philadelphia, PA, USA
| | - David W Oslin
- University of Psychiatry, VISN 4 Mental Illness, Research, Education and Clinical Center Crescenz VA Medical Center, Stephen A. Cohen Military Family Clinic at the Perelman School of Medicine, Philadelphia, PA, USA
| | - Andrew J Saxon
- University of Washington and Center of Excellence in Substance Addiction Treatment and Education at the VA Puget Sound Health Care System, Seattle, WA, USA
| | - T John Winhusen
- Addiction Sciences, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Li-Tzy Wu
- Duke University School of Medicine, Durham, NC, USA
| | - Landhing M Moran
- Center for Clinical Trials Network, National Institute on Drug Abuse, Bethesda, MD, USA
| | - Betty Tai
- Center for Clinical Trials Network, National Institute on Drug Abuse, National Institutes of Health, 11601 Landsdown Street (3WF), Bethesda, MD, 20892, USA.
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Maggi G, Loayza F, Vitale C, Santangelo G, Obeso I. Anatomical correlates of apathy and impulsivity co-occurrence in early Parkinson's disease. J Neurol 2024:10.1007/s00415-024-12233-3. [PMID: 38416170 DOI: 10.1007/s00415-024-12233-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/25/2024] [Accepted: 01/28/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND Although apathy and impulse control disorders (ICDs) are considered to represent opposite extremes of a continuum of motivated behavior (i.e., hypo- and hyperdopaminergic behaviors), they may also co-occur in Parkinson's disease (PD). OBJECTIVES We aimed to explore the co-occurrence of ICDs and apathy and its neural correlates analyzing gray matter (GM) changes in early untreated PD patients. Moreover, we aimed to investigate the possible longitudinal relationship between ICDs and apathy and their putative impact on cognition during the first five years of PD. METHODS We used the Parkinson's Progression Markers Initiative (PPMI) database to identify the co-occurrence of apathy and ICDs in 423 early drug-naïve PD patients at baseline and at 5-year follow-up. Baseline MRI volumes and gray matter changes were analyzed between groups using voxel-based morphometry. Multi-level models assessed the longitudinal relationship (across five years) between apathy and ICDs and cognitive functioning. RESULTS At baseline, co-occurrence of apathy and ICDs was observed in 23 patients (5.4%). This finding was related to anatomical GM reduction along the cortical regions involved in the limbic circuit and cognitive control systems. Longitudinal analyses indicated that apathy and ICDs were related to each other as well as to the combined use of levodopa and dopamine agonists. Worse apathetic and ICDs states were associated with poorer executive functions. CONCLUSIONS Apathy and ICDs are joint non-exclusive neuropsychiatric disorders also in the early stages of PD and their co-occurrence was associated with GM decrease in several cortical regions of the limbic circuit and cognitive control systems.
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Affiliation(s)
- Gianpaolo Maggi
- Department of Psychology, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Francis Loayza
- Neurosciences and Bioengineering Laboratory, Faculty of Mechanical and Production Sciences Engineering, Polytechnic University (ESPOL), Guayaquil, Ecuador
| | - Carmine Vitale
- Department of Medical, Motor Sciences and Wellness, University "Parthenope", Naples, Italy
- Institute of Diagnosis and Health, IDC-Hermitage Capodimonte, Naples, Italy
| | - Gabriella Santangelo
- Department of Psychology, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Ignacio Obeso
- HM-CINAC, Centro Integral de Neurociencias AC. HM Hospitales, Av. Carlos V, 70, Móstoles, 28938, Madrid, Spain.
- CINC, CSIC, Madrid, Spain.
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Avalone L, Lalane M, King C, Pfeiffer K, Linn-Walton R, Barron C. Integrating substance use peer support and screening brief intervention and referral to treatment services in the emergency department: a descriptive study of the ED leads program. Addict Sci Clin Pract 2024; 19:15. [PMID: 38419101 PMCID: PMC10902983 DOI: 10.1186/s13722-024-00445-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 02/12/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND The ED Leads program was introduced to 11 emergency departments (EDs) within New York City public hospitals from 2018 to 2019 to address a need for addiction support services in the ED. The purpose of this study is to (i) describe the ED Leads blended licensed-clinician and peer counselor team model in the ED at three hospitals, (ii) provide a descriptive analysis of patient engagement and referrals to substance use disorder (SUD) care post-intervention, and (iii) highlight potential barriers and facilitators to implementing the model. METHODS The program intended to combine Screening Brief Intervention and Referral to Treatment and peer support services. The authors analyzed electronic medical records data for patients encountered by ED Leads in the first 120 days of program launch. Data included the outcome of an encounter when a patient was engaged with one or both staff types, and 7-day attendance at an SUD treatment appointment when a patient accepted a referral within the 11-hospital system. RESULTS There were 1785 patients approached by ED Leads staff during the study period. Engagement differed by staff type and patient demographics, and encounter outcomes varied significantly by hospital. Eighty-four percent (N = 1503) of patients who were approached engaged with at least one staff type, and 6% (N = 86) engaged with both. Patients were predominantly male (N = 1438, 81%) with an average age of 45 (SD = 13), and enrolled in Medicaid (N = 1062, 59%). A majority (N = 801, 45%) had alcohol use disorder. Of the patients who accepted a referral within the system (N = 433), 63% received treatment services within 7 days of the ED Leads encounter, a majority at detoxification treatment (N = 252, 58%). CONCLUSIONS This study describes the potential value and challenges of implementing a blended peer counselor and licensed clinician model in the ED to provide SUD services. While teams provided a high volume of referrals and the analysis of post-intervention treatment follow up is promising, the blended team model was not fully realized, making it difficult to assess the benefits of this combined service. Further research might examine patient outcomes among ED patients who are offered services by both a peer counselor and licensed clinician.
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Affiliation(s)
- Lynsey Avalone
- NYC Health + Hospitals/Office of Behavioral Health, 50 Water Street, New York City, NY, 10004, USA.
| | - Monique Lalane
- NYC Health + Hospitals/Bellevue, 462 1st Avenue, New York City, NY, 10016, USA
| | - Carla King
- NYC Health + Hospitals/Office of Behavioral Health, 50 Water Street, New York City, NY, 10004, USA
| | - Kayna Pfeiffer
- NYC Health + Hospitals/Office of Behavioral Health, 50 Water Street, New York City, NY, 10004, USA
| | - Rebecca Linn-Walton
- NYC Health + Hospitals/Office of Behavioral Health, 50 Water Street, New York City, NY, 10004, USA
| | - Charles Barron
- NYC Health + Hospitals/Office of Behavioral Health, 50 Water Street, New York City, NY, 10004, USA
- Mt. Sinai Ichan School of Medicine, 1 Gustave L. Levy Pl, New York City, NY, 10029, USA
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Pickens CL, Hougham A, Kim J, Wang C, Leder J, Line C, McDaniel K, Micek L, Miller J, Powell K, Waren O, Brenneman E, Erdley B. Impairments in expression of devaluation in a Pavlovian goal-tracking task, but not a free operant devaluation task, after fentanyl exposure in female rats. Behav Brain Res 2024; 458:114761. [PMID: 37977341 PMCID: PMC10842184 DOI: 10.1016/j.bbr.2023.114761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/25/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Abstract
In laboratory animals, there are numerous demonstrations that past exposure to drugs of abuse can lead to devaluation impairments weeks after the final drug exposure, with the majority of these demonstrations examining effects of exposure to psychostimulants. There has been minimal investigation into whether prior exposure to opiates can lead to devaluation impairments. Here, we first trained female rats that two separate cuelights predicted two different foods and measured Pavlovian goal-tracking responses (Experiment 1) or trained female rats to press two levers to earn two different foods and measured this operant response (Experiment 2). In both experiments, we subsequently gave the rats injections of fentanyl twice daily for 6 days, and then tested rats for conditioned responses after satiation on one of the foods 48-h after the final injection. We found that rats were impaired in the expression of devaluation in the Pavlovian task after fentanyl exposure, but were unimpaired in the expression of devaluation in the operant task. The pattern of results is most consistent with an impairment in lateral orbitofrontal cortex function, but additional research is needed to determine the neurobiological cause of this pattern of results.
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Affiliation(s)
- Charles L Pickens
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA.
| | - Alyssa Hougham
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA
| | - Jihyeon Kim
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA
| | - Chuhan Wang
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA
| | - Jendaya Leder
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA
| | - Chelsea Line
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA
| | - Kathleen McDaniel
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA
| | - Lydia Micek
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA
| | - Jadyn Miller
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA
| | - Kendall Powell
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA
| | - Olivia Waren
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA
| | - Ellie Brenneman
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA
| | - Brooke Erdley
- Department of Psychological Sciences, Kansas State University, Manhattan, KS 66506, USA
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Carvalho L, Lasek AW. It is not just about transcription: involvement of brain RNA splicing in substance use disorders. J Neural Transm (Vienna) 2024:10.1007/s00702-024-02740-y. [PMID: 38396082 DOI: 10.1007/s00702-024-02740-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 01/04/2024] [Indexed: 02/25/2024]
Abstract
Alternative splicing is a co-transcriptional process that significantly contributes to the molecular landscape of the cell. It plays a multifaceted role in shaping gene transcription, protein diversity, and functional adaptability in response to environmental cues. Recent studies demonstrate that drugs of abuse have a profound impact on alternative splicing patterns within different brain regions. Drugs like alcohol and cocaine modify the expression of genes responsible for encoding splicing factors, thereby influencing alternative splicing of crucial genes involved in neurotransmission, neurogenesis, and neuroinflammation. Notable examples of these alterations include alcohol-induced changes in splicing factors such as HSPA6 and PCBP1, as well as cocaine's impact on PTBP1 and SRSF11. Beyond the immediate effects of drug exposure, recent research has shed light on the role of alternative splicing in contributing to the risk of substance use disorders (SUDs). This is exemplified by exon skipping events in key genes like ELOVL7, which can elevate the risk of alcohol use disorder. Lastly, drugs of abuse can induce splicing alterations through epigenetic modifications. For example, cocaine exposure leads to alterations in levels of trimethylated lysine 36 of histone H3, which exhibits a robust association with alternative splicing and serves as a reliable predictor for exon exclusion. In summary, alternative splicing has emerged as a critical player in the complex interplay between drugs of abuse and the brain, offering insights into the molecular underpinnings of SUDs.
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Affiliation(s)
- Luana Carvalho
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, 1220 E. Broad ST, Box 980613, Richmond, VA, 23298, USA.
| | - Amy W Lasek
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, 1220 E. Broad ST, Box 980613, Richmond, VA, 23298, USA
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Cafferkey SL, Kelly P, Comiskey C. 'Selling their souls?' Nurses' understanding of addiction and recovery in acute hospital settings. Br J Nurs 2024; 33:188-192. [PMID: 38386531 DOI: 10.12968/bjon.2024.33.4.188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
BACKGROUND Nursing disciplines do not currently have a shared understanding of addiction or recovery to address their contribution to their patients' needs. Recent developments of addiction nursing models, alongside an international move to standardise language, is slow to be reflected in nurses' perceptions in acute hospital settings. AIM To explore nurses' understanding of addiction and recovery in acute general hospitals. METHODS A qualitative study with semi-structured open-ended questions informed by a prior literature review was undertaken with nurses working in an acute general hospital in Dublin, Ireland. RESULTS The identified themes were the knowledge of addiction, including physical and psychological needs, and the understanding of recovery, patient-centred services and the impact of the individual's environment. CONCLUSION Standardising language for addiction and recovery and improving addiction education will give nurses a better understanding of the chronic nature of substance use and the importance of this in providing high-quality health care.
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Affiliation(s)
| | - Peter Kelly
- Assistant Professor in Mental Health Nursing, Trinity College Dublin, Ireland
| | - Catherine Comiskey
- Professor in Healthcare Modelling and Statistics, Trinity College Dublin, Ireland
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50
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de Vries B. State-Run Dating Apps: Are They Morally Desirable? Philos Technol 2024; 37:30. [PMID: 38404949 PMCID: PMC10881628 DOI: 10.1007/s13347-024-00719-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 02/13/2024] [Indexed: 02/27/2024]
Abstract
In a bid to boost fertility levels, Iran and Japan have recently launched their own dating apps, with more countries likely to follow. The aim of this article is to consider whether state-run dating apps are morally desirable, which is a question that has not received any scholarly attention. It finds that such apps have at least two benefits that collectively, if not individually, render their introduction to be welcomed provided certain conditions are met. These benefits are that they are better placed than commercial dating apps such as Tinder, Bumble, and Badoo to (i) help people find lasting love and to (ii) protect individuals from spending too much money and/or time on online dating. Several objections are discussed and shown to be unconvincing as arguments against state-run dating apps tout court, including the objection that for states to offer their own dating apps is unduly expensive; the objection that it gives them too much power; and the objection that they should invest in creating offline opportunities for meeting potential partners instead.
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Affiliation(s)
- Bouke de Vries
- Department of Philosophy, Ghent University, Ghent, Belgium
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