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Xu WM, Zhang HF, Feng YH, Li SJ, Xie BY. Genetically predicted fatty liver disease and risk of psychiatric disorders: A mendelian randomization study. World J Clin Cases 2024; 12:2359-2369. [PMID: 38765736 PMCID: PMC11099412 DOI: 10.12998/wjcc.v12.i14.2359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/18/2024] [Accepted: 04/02/2024] [Indexed: 04/29/2024] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) and alcohol-related liver disease (ArLD) constitute the primary forms of chronic liver disease, and their incidence is progressively increasing with changes in lifestyle habits. Earlier studies have documented a correlation between the occurrence and development of prevalent mental disorders and fatty liver. AIM To investigate the correlation between fatty liver and mental disorders, thus necessitating the implementation of a mendelian randomization (MR) study to elucidate this association. METHODS Data on NAFLD and ArLD were retrieved from the genome-wide association studies catalog, while information on mental disorders, including Alzheimer's disease, schizophrenia, anxiety disorder, attention deficit hyperactivity disorder (ADHD), bipolar disorder, major depressive disorder, multiple personality disorder, obsessive-compulsive disorder (OCD), post-traumatic stress disorder (PTSD), and schizophrenia was acquired from the psychiatric genomics consortium. A two-sample MR method was applied to investigate mediators in significant associations. RESULTS After excluding weak instrumental variables, a causal relationship was identified between fatty liver disease and the occurrence and development of some psychiatric disorders. Specifically, the findings indicated that ArLD was associated with a significantly elevated risk of developing ADHD (OR: 5.81, 95%CI: 5.59-6.03, P < 0.01), bipolar disorder (OR: 5.73, 95%CI: 5.42-6.05, P = 0.03), OCD (OR: 6.42, 95%CI: 5.60-7.36, P < 0.01), and PTSD (OR: 5.66, 95%CI: 5.33-6.01, P < 0.01). Meanwhile, NAFLD significantly increased the risk of developing bipolar disorder (OR: 55.08, 95%CI: 3.59-845.51, P < 0.01), OCD (OR: 61.50, 95%CI: 6.69-565.45, P < 0.01), and PTSD (OR: 52.09, 95%CI: 4.24-639.32, P < 0.01). CONCLUSION Associations were found between genetic predisposition to fatty liver disease and an increased risk of a broad range of psychiatric disorders, namely bipolar disorder, OCD, and PTSD, highlighting the significance of preventive measures against psychiatric disorders in patients with fatty liver disease.
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Affiliation(s)
- Wei-Ming Xu
- Department of Medicine, The First People's Hospital of Fuyang, Hangzhou 311400, Zhejiang Province, China
| | - Hai-Fu Zhang
- Department of Internal Medicine, The First People's Hospital of Fuyang, Hangzhou 311400, Zhejiang Province, China
| | - Yong-Hang Feng
- Department of Internal Medicine, The First People's Hospital of Fuyang, Hangzhou 311400, Zhejiang Province, China
| | - Shuo-Jun Li
- Department of Internal Medicine, The First People's Hospital of Fuyang, Hangzhou 311400, Zhejiang Province, China
| | - Bi-Yun Xie
- Department of Internal Medicine, The First People's Hospital of Fuyang, Hangzhou 311400, Zhejiang Province, China
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Grodin EN, Baskerville WA, Meredith LR, Nieto S, Ray LA. Reward, relief, and habit drinking profiles in treatment seeking individuals with an AUD. Alcohol Alcohol 2024; 59:agae032. [PMID: 38725398 PMCID: PMC11082523 DOI: 10.1093/alcalc/agae032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/18/2024] [Accepted: 04/20/2024] [Indexed: 05/13/2024] Open
Abstract
AIMS This study aimed to compare reward, relief, and habit treatment-seeking individuals on recent drinking, alcohol use disorder (AUD) phenomenology, and mood. The second aim of the study was to evaluate the predictive validity of reward, relief, and habit profiles. METHOD Treatment-seeking individuals with an AUD (n = 169) were recruited to participate in a medication trial for AUD (NCT03594435). Reward, relief, and habit drinking groups were assessed using the UCLA Reward Relief Habit Drinking Scale. Group differences at baseline were evaluated using univariate analyses of variance. A subset of participants were enrolled in a 12-week, double-blind, placebo-controlled medication trial (n = 102), and provided longitudinal drinking and phenomenology data. The predictive validity of group membership was assessed using linear regression analyses. RESULTS At baseline, individuals who drink primarily for relief had higher craving and negative mood than those who drink for reward and habit. Prospectively, membership in the relief drinking group predicted greater alcohol use, greater heavy drinking, and fewer days abstinent compared to those in the reward drinking group. Membership in the relief drinking group also predicted greater alcohol craving, more alcohol-related consequences, and more anxiety symptoms over 12 weeks compared to those in the reward drinking group. CONCLUSIONS This study provides support for reward and relief drinking motive profiles in treatment-seeking individuals with an AUD. Membership in the relief drinking motive group was predictive of poorer drinking outcomes and more negative symptomology over 12 weeks, indicating that individuals who drink for relief may be a particularly vulnerable sub-population of individuals with AUD.
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Affiliation(s)
- Erica N Grodin
- Department of Psychology, University of California, Los Angeles, Los Angeles, California 90095, United States
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California 90095, United States
- Brain Research Institute, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Wave-Ananda Baskerville
- Department of Psychology, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Lindsay R Meredith
- Department of Psychology, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Steven Nieto
- Department of Psychology, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Lara A Ray
- Department of Psychology, University of California, Los Angeles, Los Angeles, California 90095, United States
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California 90095, United States
- Brain Research Institute, University of California, Los Angeles, Los Angeles, California 90095, United States
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3
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Rure D, Shakya M, Singhal A, Varma A, Mishra N, Pathak U. A Study of the association of neurocognition with relapse and quality of life in patients of alcohol dependence. Ind Psychiatry J 2024; 33:133-140. [PMID: 38853790 PMCID: PMC11155649 DOI: 10.4103/ipj.ipj_158_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 10/05/2023] [Accepted: 10/17/2023] [Indexed: 06/11/2024] Open
Abstract
Background Alcohol is a widely consumed substance associated with around 5.6% of all causes of death. Alcohol use disorder (AUD) is a chronic relapsing and remitting illness and has been known to be associated with impaired executive functions, processing speed, memory, attention, and fluency. It is also associated with impaired quality of life (QoL), which in turn can affect overall prognosis. Aim To assess neurocognition in patients with alcohol dependence and correlate it with QoL and relapse. Materials and Methods This study was a prospective, longitudinal study of sixty alcohol dependence patients from January 2020 to June 2021 after appropriate ethical approval. Participants were assessed for baseline alcohol dependence, neurocognition (focused, sustained and divided attention; processing speed; verbal and category fluency; working memory; response inhibition; verbal comprehension; verbal learning and memory; visuospatial construction; visual learning and memory) and QoL using Alcohol Use Disorders Identification Test (AUDIT), National Institute of Mental Health and Neurosciences (NIMHANS) battery for neurocognition and WHO-BREF (WHO-Quality of Life-short-form scale) World Health Organization-scale, respectively. A follow-up was conducted in three months to assess relapse in the patients. Statistical analysis was conducted by International Business Machines Statistical Package for the Social Sciences (IBM SPSS) v16. Results Mean age of the study participants was 41.3 ± 5.03 years, mean age of onset of alcohol use was 20.88 ± 4.27 years, mean duration of alcohol use of 16.6 ± 7.92 years, and average 14.55 ± 4.86 drinks per day. The mean AUDIT score of the study population was 25.21 ± 7.18. There was significant positive correlation between duration of use and CTT-2; 37 out of 57 participants relapsed to alcohol (three participants had died in follow-up) with mean 37.48 ± 23.27 days of relapse, mean 3.32 ± 1.2 drinking days per week, and mean 6 ± 1.2 drinks per drinking day. There was negative and positive correlation between neurocognition and relapse and between neurocognition and QoL. Conclusion Alcohol use also resulted in impaired cognitive function of the study participants. There was also significant difference in score for neurocognition test between relapse and abstinent group. The significant correlation between neurocognition and QoL as well as neurocognition and relapse proves the deleterious effect of alcohol in every aspect of life.
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Affiliation(s)
- Daisy Rure
- Department of Psychiatry, R D Gardi Medical College, Ujjain, Madhya Pradesh, India
| | - Makhan Shakya
- Department of Psychiatry, Shyam Shah Medical College, Rewa, Madhya Pradesh, India
| | - Akanksha Singhal
- Department of Psychiatry, Shyam Shah Medical College, Rewa, Madhya Pradesh, India
| | - Akshat Varma
- Department of Psychiatry, 5 Air Force Hospital, Jorhat, Assam, India
| | - Nimisha Mishra
- Department of Psychiatry, Shyam Shah Medical College, Rewa, Madhya Pradesh, India
| | - Umesh Pathak
- Department of Psychiatry, Birsa Munda Government Medical College, Shahdol, Madhya Pradesh, India
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4
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Lee RSC, Albertella L, Christensen E, Suo C, Segrave RA, Brydevall M, Kirkham R, Liu C, Fontenelle LF, Chamberlain SR, Rotaru K, Yücel M. A Novel, Expert-Endorsed, Neurocognitive Digital Assessment Tool for Addictive Disorders: Development and Validation Study. J Med Internet Res 2023; 25:e44414. [PMID: 37624635 PMCID: PMC7615064 DOI: 10.2196/44414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 02/16/2023] [Accepted: 07/22/2023] [Indexed: 08/26/2023] Open
Abstract
BACKGROUND Many people with harmful addictive behaviors may not meet formal diagnostic thresholds for a disorder. A dimensional approach, by contrast, including clinical and community samples, is potentially key to early detection, prevention, and intervention. Importantly, while neurocognitive dysfunction underpins addictive behaviors, established assessment tools for neurocognitive assessment are lengthy and unengaging, difficult to administer at scale, and not suited to clinical or community needs. The BrainPark Assessment of Cognition (BrainPAC) Project sought to develop and validate an engaging and user-friendly digital assessment tool purpose-built to comprehensively assess the main consensus-driven constructs underpinning addictive behaviors. OBJECTIVE The purpose of this study was to psychometrically validate a gamified battery of consensus-based neurocognitive tasks against standard laboratory paradigms, ascertain test-retest reliability, and determine their sensitivity to addictive behaviors (eg, alcohol use) and other risk factors (eg, trait impulsivity). METHODS Gold standard laboratory paradigms were selected to measure key neurocognitive constructs (Balloon Analogue Risk Task [BART], Stop Signal Task [SST], Delay Discounting Task [DDT], Value-Modulated Attentional Capture [VMAC] Task, and Sequential Decision-Making Task [SDT]), as endorsed by an international panel of addiction experts; namely, response selection and inhibition, reward valuation, action selection, reward learning, expectancy and reward prediction error, habit, and compulsivity. Working with game developers, BrainPAC tasks were developed and validated in 3 successive cohorts (total N=600) and a separate test-retest cohort (N=50) via Mechanical Turk using a cross-sectional design. RESULTS BrainPAC tasks were significantly correlated with the original laboratory paradigms on most metrics (r=0.18-0.63, P<.05). With the exception of the DDT k function and VMAC total points, all other task metrics across the 5 tasks did not differ between the gamified and nongamified versions (P>.05). Out of 5 tasks, 4 demonstrated adequate to excellent test-retest reliability (intraclass correlation coefficient 0.72-0.91, P<.001; except SDT). Gamified metrics were significantly associated with addictive behaviors on behavioral inventories, though largely independent of trait-based scales known to predict addiction risk. CONCLUSIONS A purpose-built battery of digitally gamified tasks is sufficiently valid for the scalable assessment of key neurocognitive processes underpinning addictive behaviors. This validation provides evidence that a novel approach, purported to enhance task engagement, in the assessment of addiction-related neurocognition is feasible and empirically defensible. These findings have significant implications for risk detection and the successful deployment of next-generation assessment tools for substance use or misuse and other mental disorders characterized by neurocognitive anomalies related to motivation and self-regulation. Future development and validation of the BrainPAC tool should consider further enhancing convergence with established measures as well as collecting population-representative data to use clinically as normative comparisons.
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Affiliation(s)
- Rico S. C. Lee
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
- Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Australia
| | - Lucy Albertella
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
| | - Erynn Christensen
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
| | - Chao Suo
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
| | - Rebecca A. Segrave
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
| | - Maja Brydevall
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
| | - Rebecca Kirkham
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
| | - Chang Liu
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
| | - Leonardo F. Fontenelle
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
- Obsessive, Compulsive, and Anxiety Spectrum Research Program, Institute of Psychiatry, Federal University of Rio de Janeiro (UFRJ)
- D’Or Institute for Research and Education, Rio de Janeiro, Brazil
| | - Samuel R. Chamberlain
- Department of Psychiatry, University of Southampton, Southampton, United Kingdom; and Southern Health NHS Foundation Trust, Southampton, UK
| | - Kristian Rotaru
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
- Monash Business School, Monash University, Melbourne, Australia
| | - Murat Yücel
- BrainPark, Turner Institute for Brain and Mental Health, Monash University, Melbourne, Australia
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Bakhshaie J, Storch EA, Rogers AH, Zvolensky MJ. Pain Intensity Moderates the Association between Obsessive-Compulsive Symptoms and Problematic Alcohol Use among Emerging Adults. J Dual Diagn 2023; 19:16-25. [PMID: 36576218 DOI: 10.1080/15504263.2022.2157181] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Objective: Emerging adulthood is a vulnerable period for problematic alcohol use, defined by a pattern of use associated with physical and functional impairment. Obsessive-compulsive psychopathology, which demonstrates high rates of onset in emerging adults, seems to be related to problematic alcohol use in this age group, consistent with research among the general population suggesting an association between emotional disorders and alcohol use in the context of coping drinking motives. Pain intensity, another risk factor of problematic alcohol use, may link obsessive-compulsive symptoms to problematic alcohol use among emerging adults. Therefore, the current study examined the moderating role of pain intensity on the association between obsessive-compulsive symptoms and problematic alcohol use among emerging adults. Methods: Participants were 198 college students (81.30% female, Mage = 22.33, SD = 4.38) who reported problematic alcohol use. Results: Results from the current study supported a significant moderation role of pain intensity for the association between obsessive-compulsive symptoms and problematic alcohol use, whereby the association between obsessive-compulsive symptoms and problematic alcohol use was stronger for emerging adults with high compared to low pain intensity. Conclusions: These results highlighted a clinically-relevant interaction between obsessive-compulsive symptoms and pain intensity concerning the risk of problematic alcohol use among emerging adults as a vulnerable population.
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Affiliation(s)
- Jafar Bakhshaie
- Menninger Department of Psychiatry & Behavioral Sciences, Baylor College of Medicine, Houston, Texas, USA
| | - Eric A Storch
- Menninger Department of Psychiatry & Behavioral Sciences, Baylor College of Medicine, Houston, Texas, USA
| | - Andrew H Rogers
- Department of Psychology, University of Houston, Houston, Texas, USA
| | - Michael J Zvolensky
- Department of Psychology, University of Houston, Houston, Texas, USA.,Department of Behavioral Science, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,HEALTH Institute, University of Houston, Houston, Texas, USA
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6
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On the Role of Stimulus-Response Context in Inhibitory Control in Alcohol Use Disorder. J Clin Med 2022; 11:jcm11216557. [DOI: 10.3390/jcm11216557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 10/29/2022] [Accepted: 11/02/2022] [Indexed: 11/11/2022] Open
Abstract
The behavioral and neural dynamics of response inhibition deficits in alcohol use disorder (AUD) are still largely unclear, despite them possibly being key to the mechanistic understanding of the disorder. Our study investigated the effect of automatic vs. controlled processing during response inhibition in participants with mild-to-moderate AUD and matched healthy controls. For this, a Simon Nogo task was combined with EEG signal decomposition, multivariate pattern analysis (MVPA), and source localization methods. The final sample comprised n = 59 (32♂) AUD participants and n = 64 (28♂) control participants. Compared with the control group, AUD participants showed overall better response inhibition performance. Furthermore, the AUD group was less influenced by the modulatory effect of automatic vs. controlled processes during response inhibition (i.e., had a smaller Simon Nogo effect). The neurophysiological data revealed that the reduced Simon Nogo effect in the AUD group was associated with reduced activation differences between congruent and incongruent Nogo trials in the inferior and middle frontal gyrus. Notably, the drinking frequency (but not the number of AUD criteria we had used to distinguish groups) predicted the extent of the Simon Nogo effect. We suggest that the counterintuitive advantage of participants with mild-to-moderate AUD over those in the control group could be explained by the allostatic model of drinking effects.
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Benatti B, Vismara M, Casati L, Vanzetto S, Conti D, Cirnigliaro G, Varinelli A, Di Bartolomeo M, D'addario C, Van Ameringen M, Dell'Osso B. Cannabis use and related clinical variables in patients with obsessive-compulsive disorder. CNS Spectr 2022; 28:1-9. [PMID: 36148826 DOI: 10.1017/s1092852922001006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Limited studies have investigated cannabis use in patients with obsessive-compulsive disorder (OCD), despite its widespread use by patients with psychiatric illnesses. The aim of this study was to assess the frequency, correlates, and clinical impact of cannabis use in an Italian sample of patients with OCD. METHODS Seventy consecutive outpatients with OCD were recruited from a tertiary specialized clinic. To assess cannabis-related variables, patients completed a questionnaire developed for the purpose of this study, investigating cannabis use-related habits and the influence of cannabis use on OCD symptoms and treatments. A set of clinician and self-reported questionnaires was administered to measure disease severity. The sample was then divided into three subgroups according to the pattern of cannabis use: "current users" (CUs), "past-users" (PUs), and "non-users" (NUs). RESULTS Approximately 42.8% of patients reported lifetime cannabis use and 14.3% reported current use. Approximately 10% of cannabis users reported an improvement in OCD symptoms secondary to cannabis use, while 23.3% reported an exacerbation of anxiety symptoms. CUs showed specific unfavorable clinical variables compared to PUs and NUs: a significant higher rate of lifetime use of tobacco, alcohol, and other substances, and a higher rate of pre-OCD onset comorbidities. Conversely, the three subgroups showed a similar severity of illness. CONCLUSION A considerable subgroup of patients with OCD showed a predisposition towards cannabis use and was associated with some specific clinical characteristics, suggesting the need for targeted consideration and interventions in this population.
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Affiliation(s)
- Beatrice Benatti
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
- Department of Health Sciences, "Aldo Ravelli" Center for Neurotechnology and Brain Therapeutic, University of Milan, Milan, Italy
| | - Matteo Vismara
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
- Department of Health Sciences, "Aldo Ravelli" Center for Neurotechnology and Brain Therapeutic, University of Milan, Milan, Italy
| | - Lorenzo Casati
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
| | - Simone Vanzetto
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
| | - Dario Conti
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
| | - Giovanna Cirnigliaro
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
| | - Alberto Varinelli
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
| | - Martina Di Bartolomeo
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, Teramo, Italy
| | - Claudio D'addario
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, Teramo, Italy
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Micheal Van Ameringen
- Department of Psychiatry and Behavioural Neuroscience, McMaster University-MacAnxiety Research Centre, Hamilton, ON, Canada
| | - Bernardo Dell'Osso
- Department of Mental Health, Department of Biomedical and Clinical Sciences "Luigi Sacco", University of Milan, Milan, Italy
- Department of Health Sciences, "Aldo Ravelli" Center for Neurotechnology and Brain Therapeutic, University of Milan, Milan, Italy
- Department of Psychiatry and Behavioral Sciences, Bipolar Disorders Clinic, Stanford University, Stanford, CA, USA
- "Centro per lo studio dei meccanismi molecolari alla base delle patologie neuro-psico-geriatriche", University of Milan, Milan, Italy
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Ghin F, Stock AK, Beste C. The importance of resource allocation for the interplay between automatic and cognitive control in response inhibition – an EEG source localization study. Cortex 2022; 155:202-217. [DOI: 10.1016/j.cortex.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 04/12/2022] [Accepted: 07/05/2022] [Indexed: 11/03/2022]
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9
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Liu X, Vigorito M, Huang W, Khan MAS, Chang SL. The Impact of Alcohol-Induced Dysbiosis on Diseases and Disorders of the Central Nervous System. J Neuroimmune Pharmacol 2022; 17:131-151. [PMID: 34843074 DOI: 10.1007/s11481-021-10033-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 11/11/2021] [Indexed: 12/29/2022]
Abstract
The human digestive tract contains a diverse and abundant microbiota that is important for health. Excessive alcohol use can disrupt the balance of these microbes (known as dysbiosis), leading to elevated blood endotoxin levels and systemic inflammation. Using QIAGEN Ingenuity Pathway Analysis (IPA) bioinformatics tool, we have confirmed that peripheral endotoxin (lipopolysaccharide) mediates various cytokines to enhance the neuroinflammation signaling pathway. The literature has identified alcohol-mediated neuroinflammation as a possible risk factor for the onset and progression of neurodegenerative diseases, including Alzheimer's disease (AD) and Parkinson's disease (PD), and psychiatric disorders such as addiction to alcohol and other drugs. In this review, we discuss alcohol-use-induced dysbiosis in the gut and other body parts as a causal factor in the progression of Central Nervous System (CNS) diseases including neurodegenerative disease and possibly alcohol use disorder.
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Affiliation(s)
- Xiangqian Liu
- Institute of Neuroimmune Pharmacology, Seton Hall University, South Orange, NJ, 07079, USA
- Department of Histology and Embryology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P.R. China
| | - Michael Vigorito
- Institute of Neuroimmune Pharmacology, Seton Hall University, South Orange, NJ, 07079, USA
- Department of Psychology, Seton Hall University, South Orange, NJ, 07079, USA
| | - Wenfei Huang
- Institute of Neuroimmune Pharmacology, Seton Hall University, South Orange, NJ, 07079, USA
- Department of Biological Sciences, Seton Hall University, South Orange, NJ, 07079, USA
| | - Mohammed A S Khan
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School and Shriners Hospital for Children, Boston, MA, 02114, USA.
| | - Sulie L Chang
- Institute of Neuroimmune Pharmacology, Seton Hall University, South Orange, NJ, 07079, USA.
- Department of Biological Sciences, Seton Hall University, South Orange, NJ, 07079, USA.
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10
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Salim C, Kan AK, Batsaikhan E, Patterson EC, Jee C. Neuropeptidergic regulation of compulsive ethanol seeking in C. elegans. Sci Rep 2022; 12:1804. [PMID: 35110557 PMCID: PMC8810865 DOI: 10.1038/s41598-022-05256-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 01/07/2022] [Indexed: 11/09/2022] Open
Abstract
Despite the catastrophic consequences of alcohol abuse, alcohol use disorders (AUD) and comorbidities continue to strain the healthcare system, largely due to the effects of alcohol-seeking behavior. An improved understanding of the molecular basis of alcohol seeking will lead to enriched treatments for these disorders. Compulsive alcohol seeking is characterized by an imbalance between the superior drive to consume alcohol and the disruption or erosion in control of alcohol use. To model the development of compulsive engagement in alcohol seeking, we simultaneously exploited two distinct and conflicting Caenorhabditis elegans behavioral programs, ethanol preference and avoidance of aversive stimulus. We demonstrate that the C. elegans model recapitulated the pivotal features of compulsive alcohol seeking in mammals, specifically repeated attempts, endurance, and finally aversion-resistant alcohol seeking. We found that neuropeptide signaling via SEB-3, a CRF receptor-like GPCR, facilitates the development of ethanol preference and compels animals to seek ethanol compulsively. Furthermore, our functional genomic approach and behavioral elucidation suggest that the SEB-3 regulates another neuropeptidergic signaling, the neurokinin receptor orthologue TKR-1, to facilitate compulsive ethanol-seeking behavior.
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Affiliation(s)
- Chinnu Salim
- Department of Pharmacology, Addiction Science and Toxicology, College of Medicine, University of Tennessee Health Science Center (UTHSC), 71 S. Manassas St., Suite 217, Memphis, TN, 38103, USA
| | - Ann Ke Kan
- Department of Pharmacology, Addiction Science and Toxicology, College of Medicine, University of Tennessee Health Science Center (UTHSC), 71 S. Manassas St., Suite 217, Memphis, TN, 38103, USA
| | - Enkhzul Batsaikhan
- Department of Pharmacology, Addiction Science and Toxicology, College of Medicine, University of Tennessee Health Science Center (UTHSC), 71 S. Manassas St., Suite 217, Memphis, TN, 38103, USA
| | - E Clare Patterson
- Department of Pharmacology, Addiction Science and Toxicology, College of Medicine, University of Tennessee Health Science Center (UTHSC), 71 S. Manassas St., Suite 217, Memphis, TN, 38103, USA
| | - Changhoon Jee
- Department of Pharmacology, Addiction Science and Toxicology, College of Medicine, University of Tennessee Health Science Center (UTHSC), 71 S. Manassas St., Suite 217, Memphis, TN, 38103, USA.
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11
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Ghin F, Beste C, Stock AK. Neurobiological mechanisms of control in alcohol use disorder - moving towards mechanism-based non-invasive brain stimulation treatments. Neurosci Biobehav Rev 2021; 133:104508. [PMID: 34942268 DOI: 10.1016/j.neubiorev.2021.12.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 12/14/2021] [Accepted: 12/19/2021] [Indexed: 12/13/2022]
Abstract
Alcohol use disorder (AUD) is characterized by excessive habitual drinking and loss of control over alcohol intake despite negative consequences. Both of these aspects foster uncontrolled drinking and high relapse rates in AUD patients. Yet, common interventions mostly focus on the phenomenological level, and prioritize the reduction of craving and withdrawal symptoms. Our review provides a mechanistic understanding of AUD and suggests alternative therapeutic approaches targeting the mechanisms underlying dysfunctional alcohol-related behaviours. Specifically, we explain how repeated drinking fosters the development of rigid drinking habits and is associated with diminished cognitive control. These behavioural and cognitive effects are then functionally related to the neurobiochemical effects of alcohol abuse. We further explain how alterations in fronto-striatal network activity may constitute the neurobiological correlates of these alcohol-related dysfunctions. Finally, we discuss limitations in current pharmacological AUD therapies and suggest non-invasive brain stimulation (like TMS and tDCS interventions) as a potential addition/alternative for modulating the activation of both cortical and subcortical areas to help re-establish the functional balance between controlled and automatic behaviour.
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Affiliation(s)
- Filippo Ghin
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Germany; University Neuropsychology Center, Faculty of Medicine, TU Dresden, Germany
| | - Christian Beste
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Germany; University Neuropsychology Center, Faculty of Medicine, TU Dresden, Germany
| | - Ann-Kathrin Stock
- Cognitive Neurophysiology, Department of Child and Adolescent Psychiatry, Faculty of Medicine, TU Dresden, Germany; University Neuropsychology Center, Faculty of Medicine, TU Dresden, Germany; Biopsychology, Faculty of Psychology, TU Dresden, Dresden, Germany.
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Common Grey Matter Reductions in Alcohol Use and Obsessive-Compulsive Disorders: A Metanalysis. BIOLOGICAL PSYCHIATRY GLOBAL OPEN SCIENCE 2021; 2:421-431. [DOI: 10.1016/j.bpsgos.2021.11.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 11/09/2021] [Accepted: 11/13/2021] [Indexed: 12/21/2022] Open
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Abstract
OBJECTIVE To (1) confirm whether the Habit, Reward, and Fear Scale is able to generate a 3-factor solution in a population of obsessive-compulsive disorder and alcohol use disorder (AUD) patients; (2) compare these clinical groups in their habit, reward, and fear motivations; and (3) investigate whether homogenous subgroups can be identified to resolve heterogeneity within and across disorders based on the motivations driving ritualistic and drinking behaviors. METHODS One hundred and thirty-four obsessive-compulsive disorder (n = 76) or AUD (n = 58) patients were assessed with a battery of scales including the Habit, Reward, and Fear Scale, the Yale-Brown Obsessive-Compulsive Scale, the Alcohol Dependence Scale, the Behavioral Inhibition/Activation System Scale, and the Urgency, (lack of ) Premeditation, (lack of ) Perseverance, Sensation Seeking, and Positive Urgency Impulsive Behavior Scale. RESULTS A 3-factor solution reflecting habit, reward, and fear subscores explained 56.6% of the total variance of the Habit, Reward, and Fear Scale. Although the habit and fear subscores were significantly higher in obsessive-compulsive disorder (OCD) and the reward subscores were significantly greater in AUD patients, a cluster analysis identified that the 3 clusters were each characterized by differing proportions of OCD and AUD patients. CONCLUSIONS While affective (reward- and fear-driven) and nonaffective (habitual) motivations for repetitive behaviors seem dissociable from each other, it is possible to identify subgroups in a transdiagnostic manner based on motivations that do not match perfectly motivations that usually described in OCD and AUD patients.
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Poças IM, Grilo A, Lino P, Cabrita A, Carvalho A, Ruivo C, Rocha R, Cairrão S. Visual function and psychological variables in alcohol dependency syndrome. Strabismus 2021; 29:130-137. [PMID: 33890536 DOI: 10.1080/09273972.2021.1914685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Alcohol Dependence Syndrome (ADS) is defined as excessive alcohol consumption accompanied by psychological, physical, social, and economic disorders. Alcohol consumption affects motor and proprioceptive functions, decreasing motor and cognitive functions and causing attention deficits. We aim to evaluate visual function and attention, and psychological profiles in consumer and abstainer ADS patients. METHODS This quantitative, descriptive, cross-sectional and correlational study evaluates visual function in a sample of ADS patients. The Portuguese version of the Brief Symptom Inventory was used to assess patients' psychological status. The orthoptic examination protocol for visual function consisted of 11 standardized tests: VA for distance and near, ocular movements, near convergence and accommodation point, cover and prismatic cover tests, fusional vergence for distance and near, near stereoacuity, chromatic vision, contrast sensitivity and visual attention. RESULTS The sample included 176 patients. 121 were consumers and 55 were abstainers, aged between 31 and 72. The most affected parameters of visual function were visual acuity (80.39%), contrast sensitivity (67.50%), convergence at distance (66.44%) and near stereopsis (62.75%). Visual function was impacted in both groups. Regarding psychological status, consumers had higher averages for the Depression subscale, followed by Paranoid Ideation and Obsession. Abstainers had the highest averages in the Obsession subscale, followed by Paranoid Ideation and Depression. Statistically significant differences existed between the groups in the subscales for depression (p=.046) and paranoid ideation (p =.042). CONCLUSION Changes in visual function and attention, as well as psychopathological function, should be considered in the rehabilitation of ADS patients.
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Affiliation(s)
- Ilda Maria Poças
- Specialist Orthoptist, MSc in Rehabilitation specialty in Visual Impairment, ESTeSL- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Portugal.,Centro de Estudos de Interdisciplinares em Educação e Desenvolvimento, Universidade Lusófona de Humanidades e Tecnologias, Lisboa, Portugal
| | - Ana Grilo
- Psychologist, PhD in Psychology, speciality in Health Psychology, H&TRC-Health & Technology Research Center, ESTeSL - Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Portugal.,CICPsi - Research Center for Psychological Science, Faculty of Psychology, University of Lisbon, Portugal
| | - Pedro Lino
- Orthoptist, HBO in Orthoptic, Hospital Professor Doutor Fernando-Fonseca, EPE, Lisboa, Portugal
| | - Ana Cabrita
- Orthoptist, HBO in Orthoptic, ESTeSL - Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Portugal
| | - Ana Carvalho
- Orthoptist, HBO in Orthoptic, ESTeSL - Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Portugal
| | - Claudia Ruivo
- Orthoptist, HBO in Orthoptic, ESTeSL - Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Portugal
| | - Raquel Rocha
- Orthoptist, HBO in Orthoptic, ESTeSL - Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Portugal
| | - Sara Cairrão
- Orthoptist, HBO in Orthoptic, ESTeSL - Escola Superior de Tecnologia da Saúde, Instituto Politécnico de Lisboa, Portugal
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Hardy L, Bakou AE, Shuai R, Acuff SF, MacKillop J, Murphy CM, Murphy JG, Hogarth L. Associations between the Brief Assessment of Alcohol Demand (BAAD) questionnaire and alcohol use disorder severity in UK samples of student and community drinkers. Addict Behav 2021; 113:106724. [PMID: 33203596 DOI: 10.1016/j.addbeh.2020.106724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/20/2020] [Accepted: 10/28/2020] [Indexed: 12/16/2022]
Abstract
Value based choice and compulsion theories of addiction offer distinct explanations for the persistence of alcohol use despite harms. Choice theory argues that problematic drinkers ascribe such high value to alcohol that costs are outweighed, whereas compulsion theory argues that problematic drinkers discount costs in decision making. The current study evaluated these predictions by testing whether alcohol use disorder (AUD) symptom severity (indexed by the AUDIT) was more strongly associated with the intensity item (maximum alcohol consumption if free, indexing alcohol value) compared to the breakpoint item (maximum expenditure on a single drink, indexing sensitivity to monetary costs) of the Brief Assessment of Alcohol Demand (BAAD) questionnaire, in student (n = 579) and community (n = 120) drinkers. The community sample showed greater AUD than the student sample (p = .004). In both samples, AUD severity correlated with intensity (students, r = 0.63; community, r = 0.47), but not with breakpoint (students, r = -0.01; community, r = 0.12). Similarly, multiple regression analyses indicated that AUD severity was independently associated with intensity (student, ΔR2 < 0.20, p < .001; community, ΔR2 = 0.09, p = .001) but not breakpoint (student, ΔR2 = 0.003, p = .118; community ΔR2 = 0.01, p = .294). There was no difference between samples in the strength of these associations. The value ascribed to alcohol may play a more important role in AUD severity than discounting of alcohol-associated costs (compulsivity), and there is no apparent difference between student and community drinkers in the contribution of these two mechanisms.
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Portelli J, Farokhnia M, Deschaine SL, Battista JT, Lee MR, Li X, Ron D, Leggio L. Investigating the link between serum concentrations of brain-derived neurotrophic factor and behavioral measures in anxious alcohol-dependent individuals. Alcohol 2020; 89:75-83. [PMID: 32798692 PMCID: PMC7722014 DOI: 10.1016/j.alcohol.2020.07.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 07/24/2020] [Accepted: 07/24/2020] [Indexed: 12/21/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) plays a role in different neurophysiological processes, including those involved in alcohol- and anxiety-related behaviors. Preclinical and clinical studies indicate that chronic excessive alcohol use leads to a downregulation of BDNF production in the periphery and in the brain. In addition, a decrease in BDNF concentrations in the blood has been reported to be associated with increased anxiety levels. Non-treatment-seeking alcohol-dependent individuals with high trait anxiety were studied to assess whether serum BDNF concentrations may be linked to self-reported levels of alcohol drinking, anxiety, and other behavioral measures. Participants had a current diagnosis of alcohol dependence, high trait anxiety score, and were not seeking treatment for alcohol dependence or anxiety. A fasting blood sample was collected from each participant and serum BDNF was measured using an enzyme-linked immunosorbent assay (ELISA). Behavioral data were collected on the same day, including measures of alcohol drinking, craving, dependence severity, and anxiety. Bivariate correlations were run between BDNF levels and behavioral measures. Serum BDNF concentrations were negatively correlated with average drinks per drinking days (r = -0.41, p = 0.02) and positively correlated with obsessive-compulsive drinking scale (r = 0.48, p = 0.007) and state-trait anxiety inventory (r = 0.52, p = 0.003) scores. These findings shed light on the possible role of the BDNF system in the neurobiology of alcohol- and anxiety-related behaviors.
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Affiliation(s)
- Jeanelle Portelli
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, Bethesda, MD, United States
| | - Mehdi Farokhnia
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, Bethesda, MD, United States; Center on Compulsive Behaviors, National Institutes of Health, Bethesda, MD, United States; Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, United States
| | - Sara L Deschaine
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, Bethesda, MD, United States
| | - Jillian T Battista
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, Bethesda, MD, United States
| | - Mary R Lee
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, Bethesda, MD, United States
| | - Xiaobai Li
- Biostatistics and Clinical Epidemiology Service, Clinical Center, National Institutes of Health, Bethesda, MD, United States
| | - Dorit Ron
- Department of Neurology, University of California San Francisco, San Francisco, CA, United States
| | - Lorenzo Leggio
- Clinical Psychoneuroendocrinology and Neuropsychopharmacology Section, National Institute on Drug Abuse Intramural Research Program and National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Biological Research, National Institutes of Health, Baltimore, Bethesda, MD, United States; Center on Compulsive Behaviors, National Institutes of Health, Bethesda, MD, United States; Medication Development Program, National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, Baltimore, MD, United States; Center for Alcohol and Addiction Studies, Department of Behavioral and Social Sciences, Brown University, Providence, RI, United States.
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Lemoine M, Gmel G, Foster S, Marmet S, Studer J. Multiple trajectories of alcohol use and the development of alcohol use disorder: Do Swiss men mature-out of problematic alcohol use during emerging adulthood? PLoS One 2020; 15:e0220232. [PMID: 31986142 PMCID: PMC6984690 DOI: 10.1371/journal.pone.0220232] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 07/11/2019] [Indexed: 12/31/2022] Open
Abstract
(A) OBJECTIVE This study aimed to identify trajectories of alcohol use (AU) and their associations with the development of alcohol use disorder (AUD) among young men with different weekly drinking patterns. (B) METHOD A longitudinal latent class analysis integrating several aspects of AU, such as drinking quantity and frequency on weekends vs workweek days, involving 4719 young Swiss men at ages 20, 21, and 25, and collected by the Cohort Study on Substance Use Risk Factors, was used to identify different AU trajectories over time. The development of AUD scores in these trajectories was investigated using generalized linear mixed models. (C) RESULTS Six AU trajectory classes, similar to those described in the literature, were identified: 'abstainers-light drinkers', 'light workweek increasers', 'light decreasers', 'moderate weekend decreasers', 'moderate workweek increasers', and 'heavy drinkers'. Only 12% of participants were assigned to a trajectory class with decreasing AU associated with a decline in their AUD score. AUD scores increased in trajectory classes exhibiting increasing AU on workweek days, despite low and moderate general AU. Finally, more than 59% of participants were on an AU trajectory presenting no change in their mean AUD score over time. (D) CONCLUSIONS Maturing out of problematic AU in emerging adulthood is not the norm in Switzerland, and the AUD score developed in late adolescence remains until at least emerging adulthood. AU on workweek days is a more practical marker of potentially problematic AU. This calls for timely interventions in adolescence and concerning regular drinking on workweek days in emerging adulthood.
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Affiliation(s)
- Mélissa Lemoine
- Addiction Medicine, Lausanne University Hospital CHUV, Rue du Bugnon, Lausanne, Switzerland
| | - Gerhard Gmel
- Addiction Medicine, Lausanne University Hospital CHUV, Rue du Bugnon, Lausanne, Switzerland
- Addiction Switzerland, Lausanne, Switzerland
- Centre for Addiction and Mental Health, Toronto, ON, Canada
- University of the West of England, Bristol, United Kingdom
| | - Simon Foster
- Swiss Research Institute for Public Health and Addiction at Zurich University, Konradstrasse, Zurich, Switzerland
| | - Simon Marmet
- Addiction Medicine, Lausanne University Hospital CHUV, Rue du Bugnon, Lausanne, Switzerland
| | - Joseph Studer
- Addiction Medicine, Lausanne University Hospital CHUV, Rue du Bugnon, Lausanne, Switzerland
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Neurochemical Evidence of Preclinical and Clinical Reports on Target-Based Therapy in Alcohol Used Disorder. Neurochem Res 2020; 45:491-507. [PMID: 31898084 DOI: 10.1007/s11064-019-02944-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/13/2019] [Accepted: 12/20/2019] [Indexed: 10/25/2022]
Abstract
Alcohol use disorder (AUD) is a chronic relapsing disorder, which enforces a person to compulsively seek alcohol, restricting control over alcohol intake leads to emergence of an undesired emotional state during abstinence. There are recent advances for better understanding of neurocircuitry involved in the pathophysiology of AUD. Alcohol interaction with neuronal membrane proteins results in changes in neuronal circuits. It is also linked with the potential medication and their clinical validation concerning their pharmacological targets for alcoholic abstinence. This review covers research work from the past few decades on the therapeutic advances on treatment of alcohol dependence; further detailing the fundamental neurochemical mechanisms after alcohol administration. It also covers interaction of alcohol with GABAergic, glutaminergic, dopaminergic, serotonergic and opioid systems. This review further elaborated the neurobiology of noradrenergic, cholinergic and cannabinoid systems and their interaction with AUD. Elaborative information of potential drug targets under current exploration for AUD treatment with their mechanisms are reported here along with clinical outcomes and the associated side effects.
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