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Huang MC, Tu HY, Chung RH, Kuo HW, Liu TH, Chen CH, Mochly-Rosen D, Liu YL. Changes of neurofilament light chain in patients with alcohol dependence following withdrawal and the genetic effect from ALDH2 Polymorphism. Eur Arch Psychiatry Clin Neurosci 2024; 274:423-432. [PMID: 37314537 PMCID: PMC10719424 DOI: 10.1007/s00406-023-01635-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 05/29/2023] [Indexed: 06/15/2023]
Abstract
Neurofilament light chain (NFL), as a measure of neuroaxonal injury, has recently gained attention in alcohol dependence (AD). Aldehyde dehydrogenase 2 (ALDH2) is the major enzyme which metabolizes the alcohol breakdown product acetaldehyde. An ALDH2 single nucleotide polymorphism (rs671) is associated with less ALDH2 enzyme activity and increased neurotoxicity. We examined the blood NFL levels in 147 patients with AD and 114 healthy controls using enzyme-linked immunosorbent assay and genotyped rs671. We also followed NFL level, alcohol craving and psychological symptoms in patients with AD after 1 and 2 weeks of detoxification. We found the baseline NFL level was significantly higher in patients with AD than in controls (mean ± SD: 264.2 ± 261.8 vs. 72.1 ± 35.6 pg/mL, p < 0.001). The receiver operating characteristic curve revealed that NFL concentration could discriminate patients with AD from controls (area under the curve: 0.85; p < 0.001). The NFL levels were significantly reduced following 1 and 2 weeks of detoxification, with the extent of reduction correlated with the improvement of craving, depression, and anxiety (p < 0.001). Carriers with the rs671 GA genotype, which is associated with less ALDH2 activity, had higher NLF levels either at baseline or after detoxification compared with GG carriers. In conclusion, plasma NFL level was increased in patients with AD and reduced after early abstinence. Reduction in NFL level corroborated well with the improvement of clinical symptoms. The ALDH2 rs671 polymorphism may play a role in modulating the extent of neuroaxonal injury and its recovery.
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Affiliation(s)
- Ming-Chyi Huang
- Department of Addiction Sciences, Taipei City Psychiatric Center, Taipei City Hospital, Taipei, Taiwan
- Department of Psychiatry, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Psychiatric Research Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - Hsueh-Yuan Tu
- Department of Addiction Sciences, Taipei City Psychiatric Center, Taipei City Hospital, Taipei, Taiwan
| | - Ren-Hua Chung
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Hsiang-Wei Kuo
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Tung-Hsia Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Che-Hong Chen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Yu-Li Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan.
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan.
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Martins BS, Fogelman N, Tate M, Hermes GH, Sinha R. Effects of prazosin treatment on liver enzymes are moderated by alcohol withdrawal symptoms in individuals with alcohol use disorder. ALCOHOL, CLINICAL & EXPERIMENTAL RESEARCH 2024; 48:507-515. [PMID: 38258493 PMCID: PMC10939766 DOI: 10.1111/acer.15263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/19/2023] [Accepted: 12/23/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND Alcohol use disorder (AUD) is associated with significant liver pathology marked by elevated liver enzymes. Prazosin, an alpha1-noradrenergic antagonist significantly improves alcohol drinking outcomes in individuals with alcohol withdrawal symptoms (AW), but effects on liver enzymes are unknown. We assessed the effects of prazosin treatment on the liver enzymes alanine transaminase (ALT), aspartate transaminase (AST), and gamma-glutamyltransferase (GGT) in individuals with AUD. METHODS Participants (N=100) with AUD were enrolled in a 12-week randomized controlled trial and received either placebo or 16 mg/day of prazosin. Whole blood was drawn from 92 participants to measure liver enzyme levels every 4 weeks, and severity of AW was assessed weekly. Analysis predicting liver function outcomes used linear mixed effects models. RESULTS Controlling for alcohol consumption, a significant AW × treatment effect was seen for ALT (p < 0.05), AST (p < 0.05) and GGT (p < 0.01). Additionally, AST (b = 0.2, p < 0.01), ALT (b = 0.2, p < 0.05), and GGT (b = 0.3, p < 0.01) were elevated in individuals with higher AW in the placebo but not in the prazosin group (AST: p > 0.66; ALT: p > 0.65). Only in the prazosin group were lower GGT levels associated with higher withdrawal severity (b = -0.16, p < 0.05). CONCLUSIONS We found an interaction of alcohol withdrawal symptoms and prazosin treatment on liver enzyme levels, which were not influenced by week in the trial or the amount of alcohol consumed. Together, these findings suggest that prazosin treatment reduces liver enzymes over the course of AUD treatment among individuals with significant AW, though replication to establish clinical utility is needed.
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Affiliation(s)
- Bradford S. Martins
- Yale Stress Center, Yale University, 2 Church St. South Suite 209, New Haven, CT, 06519. USA
- Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT, 06511, USA
| | - Nia Fogelman
- Yale Stress Center, Yale University, 2 Church St. South Suite 209, New Haven, CT, 06519. USA
- Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT, 06511, USA
| | - Marshall Tate
- Yale Stress Center, Yale University, 2 Church St. South Suite 209, New Haven, CT, 06519. USA
- Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT, 06511, USA
| | - Gretchen H. Hermes
- Yale Stress Center, Yale University, 2 Church St. South Suite 209, New Haven, CT, 06519. USA
- Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT, 06511, USA
| | - Rajita Sinha
- Yale Stress Center, Yale University, 2 Church St. South Suite 209, New Haven, CT, 06519. USA
- Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT, 06511, USA
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Grodin EN, Burnette EM, O’Neill J, Alger J, Ray LA. Alcohol Craving and Severity are Associated with Dorsal Anterior Cingulate Choline Levels in Individuals with an Alcohol Use Disorder. Alcohol Alcohol 2023; 58:289-297. [PMID: 36939375 PMCID: PMC10168708 DOI: 10.1093/alcalc/agad014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/27/2023] [Accepted: 03/01/2023] [Indexed: 03/21/2023] Open
Abstract
AIMS Magnetic resonance spectroscopy (MRS) has been used to probe inflammation in the brain. While altered MRS metabolite levels have previously been found in individuals with alcohol use disorder (AUD), the relationship between potential metabolite markers of inflammation and the clinical correlates of AUD remains understudied. Therefore, this exploratory study sought to elucidate the clinical significance of inflammation in AUD by examining relationships between metabolites, AUD severity, alcohol consumption, and craving in individuals with AUD. METHODS Data for this secondary analysis are derived from a two-week clinical trial of ibudilast to treat AUD. Forty-three non-treatment-seeking individuals with an AUD (26M/17F) completed an MRS scan and alcohol-related questionnaires. MRS was performed using a multi-voxel array placed above the corpus callosum, extending from the pregnenual anterior cingulate to premotor cortex. The dorsal anterior cingulate was selected as the volume of interest. Metabolite levels of choline-compounds (Cho), myo-inositol (mI), and creatine+phosphocreatine (Cr) were quantified. Separate hierarchical regression models were used to evaluate the independent effects of metabolite levels on alcohol craving, alcohol problem severity, and alcohol consumption. RESULTS Dorsal anterior cingulate Cho predicted alcohol craving and alcohol problem severity over and above demographics, medication, and alcohol consumption measures. mI and Cr did not predict alcohol craving or alcohol problem severity. Metabolite markers were not predictive of alcohol consumption. CONCLUSIONS This preliminary study indicates that dACC Cho is sensitive to clinical characteristics of AUD. This is a further step in advancing neurometabolites, particularly Cho, as potential biomarkers and treatment targets for AUD.
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Affiliation(s)
- Erica N Grodin
- Department of Psychology, University of California at Los Angeles, Los Angeles, CA
| | - Elizabeth M Burnette
- Department of Psychology, University of California at Los Angeles, Los Angeles, CA
- Neuroscience Interdepartmental Program, University of California at Los Angeles, Los Angeles, CA
| | - Joseph O’Neill
- Jane & Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, CA
- Brain Research Institute, University of California, Los Angeles, CA
| | - Jeffry Alger
- Department of Neurology, University of California Los Angeles, MC 708522, Los Angeles, CA
| | - Lara A Ray
- Department of Psychology, University of California at Los Angeles, Los Angeles, CA
- Department of Psychiatry and Biobehavioral Sciences, University of California at Los Angeles, Los Angeles, CA
- Brain Research Institute, University of California, Los Angeles, CA
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Tonetto S, Weikop P, Brudek T, Thomsen M. Behavioral and biochemical effects of alcohol withdrawal in female C3H/HeNRj and C57BL/6JRj mice. Front Behav Neurosci 2023; 17:1143720. [PMID: 36910126 PMCID: PMC9995974 DOI: 10.3389/fnbeh.2023.1143720] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 02/08/2023] [Indexed: 02/25/2023] Open
Abstract
Background Alcohol use disorder (AUD) is a major problem of our society and is often characterized and worsened by relapse. Prolonged alcohol exposure leads to numerous biochemical alterations that, upon cessation of alcohol intake, cause an array of immediate and lasting withdrawal symptoms. Acute withdrawal and neuroinflammation can be harmful in themselves, and lasting withdrawal symptoms contribute to relapse. Here, we conducted an initial feasibility study assessing several behavioral and neurochemical factors in female C3H/HeNRj (C3H) and C57BL/6JRj (B6) mice to determine which strain showed the clearest alcohol withdrawal symptoms during long-term abstinence and neurochemical alterations following re-exposure. Methods Female C3H and B6 mice (n = 12 per group/strain) were intermittently exposed to alcohol-containing or control liquid diets for 3 weeks. Acute and prolonged withdrawal symptoms were assessed over a period of 3 weeks using a battery of behavioral test, comprised of alcohol self-administration, anhedonia, hyperalgesia, anxiety-like and depressive-like disturbances. Brain inflammation was measured by multiplex cytokine assay. Monoamine levels in the hippocampus and striatum, as well as exploratory analyses of cations levels in the cerebellum, were assessed by High-Performance Liquid Chromatography (HPLC). Results Both C3H and B6 alcohol-exposed mice displayed decreased saccharin intake or preference and higher stress levels assessed by ultrasonic vocalizations (USVs) recordings. B6 but not C3H alcohol-exposed mice also exhibited a slower decline of alcohol oral self-administration (OSA), hyperalgesia, elevated brain TNF-α and elevated serotonin turnover. Conclusion Our findings highlight the suitability of the B6 strain to study the behavioral and neurochemical alterations caused by alcohol withdrawal and the potential efficacy of experimental treatments, not only in early detoxification, but also in prolonged abstinence. The feasibility of these assays is important because long-lasting withdrawal symptoms are often the main cause of relapse in alcohol-dependent patients.
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Affiliation(s)
- Simone Tonetto
- Laboratory of Neuropsychiatry, Psychiatric Center Copenhagen, University Hospital of Copenhagen, Copenhagen, Denmark.,Copenhagen Center for Translational Research, Bispebjerg-Frederiksberg Hospital, University Hospital of Copenhagen, Copenhagen, Denmark.,Department of Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Pia Weikop
- Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark
| | - Tomasz Brudek
- Copenhagen Center for Translational Research, Bispebjerg-Frederiksberg Hospital, University Hospital of Copenhagen, Copenhagen, Denmark.,Research Laboratory for Stereology and Neuroscience, Bispebjerg-Frederiksberg Hospital, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Morgane Thomsen
- Laboratory of Neuropsychiatry, Psychiatric Center Copenhagen, University Hospital of Copenhagen, Copenhagen, Denmark.,Copenhagen Center for Translational Research, Bispebjerg-Frederiksberg Hospital, University Hospital of Copenhagen, Copenhagen, Denmark.,Department of Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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5
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Zhao K, Ni Z, Qin Y, Zhu R, Yu Z, Ma Y, Chen W, Sun Q, Wang Z, Liu Y, Zhao J, Peng W, Hu S, Shi J, Lu L, Sun H. Disrupted diurnal oscillations of the gut microbiota in patients with alcohol dependence. Front Cell Infect Microbiol 2023; 13:1127011. [PMID: 36875518 PMCID: PMC9983756 DOI: 10.3389/fcimb.2023.1127011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/08/2023] [Indexed: 02/19/2023] Open
Abstract
Background Patients with alcohol dependence (AD) can exhibit gut dysbacteria. Dysbacteria may co-occur with disruptions of circadian rhythmicity of the gut flora, which can aggravate AD. Herein, this study aimed to investigate diurnal oscillations of the gut microbiota in AD patients. Methods Thirty-two patients with AD, based on the Diagnostic and Statistical Manual of Mental Disorders, 4th edition, and 20 healthy subjects were enrolled in this study. Demographic and clinical data were collected by self-report questionnaires. Fecal samples at 7:00 AM, 11:00 AM, 3:00 PM, and 7:00 PM were collected from each subject. 16S rDNA sequencing was conducted. Wilcoxon and Kruskal-Wallis tests were performed to characterize alterations and oscillations of the gut microbiota. Results We found that β-diversity of the gut microbiota in AD patients oscillated diurnally compared with healthy subjects (p = 0.01). Additionally, 0.66% of operational taxonomic units oscillated diurnally in AD patients versus 1.68% in healthy subjects. At different taxonomic levels, bacterial abundance oscillated diurnally in both groups, such as Pseudomonas and Prevotella pallens (all p < 0.05). β-diversity of the gut microbiota in AD patients with high daily alcohol consumption, high-level cravings, short AD durations, and mild withdrawal symptoms oscillated diurnally compared with other AD patients (all p < 0.05). Conclusion The gut microbiota in AD patients exhibits disruptions of diurnal oscillation, which may provide novel insights into mechanisms of AD and the development of therapeutic strategies.
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Affiliation(s)
- Kangqing Zhao
- NHC Key Laboratory of Mental Health (Peking University), Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Zhaojun Ni
- NHC Key Laboratory of Mental Health (Peking University), Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Ying Qin
- Addiction Medicine Department, The Second People’s Hospital of Guizhou Province, Guizhou, China
| | - Ran Zhu
- NHC Key Laboratory of Mental Health (Peking University), Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Zhoulong Yu
- NHC Key Laboratory of Mental Health (Peking University), Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Yundong Ma
- NHC Key Laboratory of Mental Health (Peking University), Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Wenhao Chen
- NHC Key Laboratory of Mental Health (Peking University), Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Qiqing Sun
- NHC Key Laboratory of Mental Health (Peking University), Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Zhong Wang
- NHC Key Laboratory of Mental Health (Peking University), Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Yanjing Liu
- Addiction Medicine Department, The Second People’s Hospital of Guizhou Province, Guizhou, China
| | - Jingwen Zhao
- Addiction Medicine Department, The Second People’s Hospital of Guizhou Province, Guizhou, China
| | - Wenjuan Peng
- Addiction Medicine Department, The Second People’s Hospital of Guizhou Province, Guizhou, China
| | - Sifan Hu
- NHC Key Laboratory of Mental Health (Peking University), Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Jie Shi
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, China
- The State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China
- The Key Laboratory for Neuroscience of the Ministry of Education and Health, Peking University, Beijing, China
| | - Lin Lu
- NHC Key Laboratory of Mental Health (Peking University), Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Hongqiang Sun
- NHC Key Laboratory of Mental Health (Peking University), Peking University Sixth Hospital, Peking University Institute of Mental Health, National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
- *Correspondence: Hongqiang Sun,
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Dirani E, Bou Khalil R, Raad G, Richa S. Eosinophils to Lymphocytes Ratio (ELR) as a Potential Inflammatory Biomarker in Patients with Dual Diagnosis of Bipolar and Alcohol Use Disorders: A Retrospective Cohort Study. J Dual Diagn 2022; 18:144-152. [PMID: 35767724 DOI: 10.1080/15504263.2022.2090650] [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: 10/17/2022]
Abstract
Objective: It is well-established that Bipolar Disorder (BD) has comorbidity with Alcohol Use Disorder (AUD) and could present the same symptoms of an underlying diagnosis of BD, therefore delaying the proper relevant treatment. Recent studies show the occurrence of alterations in the circulating levels of inflammatory mediators in patients dealing with AUD as well as those with BD. The objective of this study is to get an assessment of whether patients with AUD and BD comorbidity [BD(+)] would present different ratios of the Complete Blood Count (CBC) in comparison with patients with AUD but without a BD comorbidity [BD(-)]. Methods: This is a retrospective study, conducted through a selection of patients files who were admitted to the psychiatric department at Hôtel-Dieu de France University Hospital in Beirut, Lebanon, between January of the year 2016 and May of the year 2021. Overall, 83 files of patients dealing with AUD were included in this study. Results: Patients with BD(+) showed a higher Eosinophils to Lymphocytes Ratio (ELR) in comparison to those with BD(-). The Receiver Operation Characteristic (ROC) analysis had an area under the curve at 0.719 with a p = .001. The cutoff value of ELR that best differentiates BD(-) from BD(+) was 0.087 (Sensitivity = 81.3%; Specificity = 63.6%). The logistic regression analysis showed that an ELR superior to 0.087 presented a statistically significant difference, exposing patients belonging to the BD(+) group (OR = 11.66; p < .001). Conclusions: Our data suggest that ELR may be a valuable, reproducible, easily accessible, and cost-effective inflammatory marker, pointing at the presence of a BD comorbidity with AUD.
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Affiliation(s)
- Elina Dirani
- Hôtel Dieu de France, Beirut, Lebanon.,Department of Psychiatry, Saint Joseph University, Beirut, Lebanon
| | - Rami Bou Khalil
- Hôtel Dieu de France, Beirut, Lebanon.,Department of Psychiatry, Saint Joseph University, Beirut, Lebanon
| | - Georges Raad
- IVF Department, Al-Hadi Laboratory and Medical Center, Beirut, Lebanon
| | - Sami Richa
- Hôtel Dieu de France, Beirut, Lebanon.,Department of Psychiatry, Saint Joseph University, Beirut, Lebanon
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Zillich L, Poisel E, Frank J, Foo JC, Friske MM, Streit F, Sirignano L, Heilmann-Heimbach S, Heimbach A, Hoffmann P, Degenhardt F, Hansson AC, Bakalkin G, Nöthen MM, Rietschel M, Spanagel R, Witt SH. Multi-omics signatures of alcohol use disorder in the dorsal and ventral striatum. Transl Psychiatry 2022; 12:190. [PMID: 35523767 PMCID: PMC9076849 DOI: 10.1038/s41398-022-01959-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
Alcohol Use Disorder (AUD) is a major contributor to global mortality and morbidity. Postmortem human brain tissue enables the investigation of molecular mechanisms of AUD in the neurocircuitry of addiction. We aimed to identify differentially expressed (DE) genes in the ventral and dorsal striatum between individuals with AUD and controls, and to integrate the results with findings from genome- and epigenome-wide association studies (GWAS/EWAS) to identify functionally relevant molecular mechanisms of AUD. DNA-methylation and gene expression (RNA-seq) data was generated from postmortem brain samples of 48 individuals with AUD and 51 controls from the ventral striatum (VS) and the dorsal striatal regions caudate nucleus (CN) and putamen (PUT). We identified DE genes using DESeq2, performed gene-set enrichment analysis (GSEA), and tested enrichment of DE genes in results of GWASs using MAGMA. Weighted correlation network analysis (WGCNA) was performed for DNA-methylation and gene expression data and gene overlap was tested. Differential gene expression was observed in the dorsal (FDR < 0.05), but not the ventral striatum of AUD cases. In the VS, DE genes at FDR < 0.25 were overrepresented in a recent GWAS of problematic alcohol use. The ARHGEF15 gene was upregulated in all three brain regions. GSEA in CN and VS pointed towards cell-structure associated GO-terms and in PUT towards immune pathways. The WGCNA modules most strongly associated with AUD showed strong enrichment for immune response and inflammation pathways. Our integrated analysis of multi-omics data sets provides further evidence for the importance of immune- and inflammation-related processes in AUD.
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Affiliation(s)
- Lea Zillich
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Eric Poisel
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Josef Frank
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Jerome C Foo
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Marion M Friske
- Institute of Psychopharmacology, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Fabian Streit
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Lea Sirignano
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Stefanie Heilmann-Heimbach
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - André Heimbach
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Per Hoffmann
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
- Department of Biomedicine, University of Basel, Basel, 4003, Switzerland
| | - Franziska Degenhardt
- Department of Child and Adolescent Psychiatry, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Anita C Hansson
- Institute of Psychopharmacology, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Georgy Bakalkin
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Marcella Rietschel
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Rainer Spanagel
- Institute of Psychopharmacology, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
| | - Stephanie H Witt
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Center for Innovative Psychiatric and Psychotherapeutic Research, Biobank, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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8
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Vascular Endothelial Growth Factor as a Potential Biomarker of Neuroinflammation and Frontal Cognitive Impairment in Patients with Alcohol Use Disorder. Biomedicines 2022; 10:biomedicines10050947. [PMID: 35625687 PMCID: PMC9138236 DOI: 10.3390/biomedicines10050947] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/14/2022] [Accepted: 04/16/2022] [Indexed: 02/06/2023] Open
Abstract
(1) Background: Alcohol Use Disorder (AUD) is associated with functional disruption of several brain structures that may trigger cognitive dysfunction. One of the mechanisms of alcohol-associated cognitive impairment has been proposed to arise from its direct impact on the immune system, which culminates in the release of cytokines and chemokines which can eventually reach the brain. Alcohol can also disrupt the blood–brain barrier, facilitating the penetration of pro-inflammatory molecules throughout vascular endothelial growth factor A (VEGFA). Thus, alcohol-induced alterations in chemokines and VEGFA might contribute to the neuroinflammation and cognitive impairment associated with AUD. (2) Methods: The present cross-sectional study investigates whether patients with AUD (n = 86) present cognitive disability associated to alterations in plasma concentration of SDF-1, fractalkine, eotaxin, MCP-1, MIP-1α and VEGFA when compared to control subjects (n = 51). (3) Results: The analysis indicated that SDF-1 and MCP-1 concentrations were higher in AUD patients than in controls. Concentrations of VEGFA were higher in AUD patients with severe frontal deficits, and the score of frontal lobe functions was negatively correlated with VEGFA and fractalkine. Acute alcohol effects on VEGFA plasma levels in healthy volunteers demonstrated the induction of VEGFA release by heavy alcohol drinking. VEGFA was positively correlated with pro-inflammatory chemokines in AUD patients with frontal cognitive impairment. (4) Conclusions: we propose VEGFA/chemokine monitoring as biomarkers of potential cognitive impairment in AUD patients.
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9
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Fernández-Rodríguez S, Cano-Cebrián MJ, Rius-Pérez S, Pérez S, Guerri C, Granero L, Zornoza T, Polache A. Different brain oxidative and neuroinflammation status in rats during prolonged abstinence depending on their ethanol relapse-like drinking behavior: Effects of ethanol reintroduction. Drug Alcohol Depend 2022; 232:109284. [PMID: 35033958 DOI: 10.1016/j.drugalcdep.2022.109284] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/17/2021] [Accepted: 01/03/2022] [Indexed: 12/17/2022]
Abstract
RATIONALE Accumulating evidence suggests that chronic alcohol consumption is associated with excessive oxidative damage and neuroinflammatory processes and these events have been associated to early alcohol withdrawal. In the present research we wonder if brain oxidative stress and neuroinflammation remains altered during prolonged withdrawal situations and whether these alterations can be correlated with relapse behavior in alcohol consumption. The effects of alcohol reintroduction were also evaluated METHODS: We have used a model based on the alcohol deprivation effect (ADE) within a cohort of wild-type male Wistar rats. Two subpopulations were identified according to the alcohol relapse-like drinking behavior displayed (ADE and NO-ADE subpopulations). Oxidized and reduced glutathione content was determined within the hippocampus and the amygdala using a mass spectrometry method. The levels of mRNA of seven different inflammatory mediators in the prefrontal cortex of rats were quantified. All the analyses were performed in two different conditions: after 21-day alcohol deprivation (prolonged abstinence) and after 24 h of ethanol reintroduction in both subpopulations. RESULTS ADE and NO-ADE rats showed different endophenotypes. ADE rats always displayed a significant lower alcohol intake rate and ethanol preference than NO-ADE rats. The results also demonstrated the existence of altered brain redox and neuroinflammation status after prolonged abstinence exclusively in ADE rats. Moreover, when ethanol was reintroduced in the ADE subpopulation, altered oxidative stress and neuroinflammatory markers were restored. CONCLUSIONS Present findings provide new mechanisms underlying the neurobiology of relapse behavior and suggest the development of new pharmacological approaches to treat alcohol-induced relapse.
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Affiliation(s)
- S Fernández-Rodríguez
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain
| | - M J Cano-Cebrián
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain
| | - S Rius-Pérez
- Departament de Fisiologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain
| | - S Pérez
- Departament de Fisiologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain
| | - C Guerri
- Department of Molecular and Cellular Pathology of Alcohol, Príncipe Felipe Research Center, Carrer d'Eduardo Primo Yúfera, 3, 46012 Valencia, Spain
| | - L Granero
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain
| | - T Zornoza
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain.
| | - A Polache
- Departament de Farmàcia i Tecnologia Farmacèutica i Parasitologia, Universitat de València, Avda Vicente Andrés Estellés, s/n 46100 Burjassot, Spain
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10
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Huang MC, Chung RH, Lin PH, Kuo HW, Liu TH, Chen YY, Chen ACH, Liu YL. Increase in plasma CCL11 (Eotaxin-1) in patients with alcohol dependence and changes during detoxification. Brain Behav Immun 2022; 99:83-90. [PMID: 34571176 DOI: 10.1016/j.bbi.2021.09.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/25/2021] [Accepted: 09/21/2021] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Alcohol is known to modulate the immune system. Neuroinflammatory cytokine dysregulation plays an essential role in the pathophysiology of alcohol dependence (AD). Preclinical studies have indicated that alcohol consumption upregulates the pro-inflammatory cytokine CC motif ligand 11 (CCL11, also known as eotaxin-1). We examined CCL11 levels in patients with AD and in mice administered alcohol. METHODS The plasma CCL11 levels of 151 patients with AD and 116 healthy controls were measured. In addition, we followed the CCL11 levels, alcohol cravings and psychological symptoms in patients with AD after 1 and 2 weeks of detoxification. Furthermore, we examined CCL11 changes in mice administered alcohol for 5 days. RESULTS CCL11 levels were higher in patients with AD than in controls and declined during detoxification. CCL11 levels were positively correlated with AD severity (p < 0.001). Furthermore, mice exposed to alcohol exhibited a higher CCL11 level. The receiver operating characteristic curve revealed that a CCL11 level of 72.5 pg/mL could significantly differentiate patients with AD from controls (area under the curve: 0.77; p < 0.001). Reductions in CCL11 levels during detoxification were correlated with reductions in alcohol craving, depression, and anxiety. CONCLUSIONS Our data from humans and mice suggest that chronic alcohol consumption is associated with an increase in CCL11 levels. CCL11 levels are correlated with AD severity and may be a potential indicator of AD. The CCL11 reduction after alcohol discontinuation is associated with alleviation of clinical symptoms. Collectively, our findings suggest that CCL11 is involved in the neurobiological mechanisms underlying AD.
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Affiliation(s)
- Ming-Chyi Huang
- Department of Psychiatry, Taipei City Psychiatric Center, Taipei City Hospital, Taipei, Taiwan; Department of Psychiatry, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Psychiatric Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Ren-Hua Chung
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Pei-Hsuan Lin
- Department of Psychiatry, Taipei City Psychiatric Center, Taipei City Hospital, Taipei, Taiwan
| | - Hsiang-Wei Kuo
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Tung-Hsia Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Ya-Yun Chen
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Andrew C H Chen
- Department of Psychiatry, the Zucker Hillside Hospital, Northwell Health, Glen Oaks, NY, USA; The Feinstein Institute for Medical Research, Donald and Barbara Zucker School of Medicine at Hofstra/ Northwell, Manhasset, NY, USA
| | - Yu-Li Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan; Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan.
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11
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Baldari S, Manni I, Di Rocco G, Paolini F, Palermo B, Piaggio G, Toietta G. Reduction of Cell Proliferation by Acute C 2H 6O Exposure. Cancers (Basel) 2021; 13:cancers13194999. [PMID: 34638483 PMCID: PMC8508324 DOI: 10.3390/cancers13194999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/17/2021] [Accepted: 09/28/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Alcoholic beverages and acetaldehyde formed during their metabolism are carcinogenic to humans. Alcohol drinking may affect bone marrow stem cell niche, suppressing physiological hematopoiesis and ultimately reducing the organism’s capacity to fight against cancer, infections, and to promote tissue regeneration. To elucidate in vivo the cellular mechanisms associated with alcohol intake toxicity, we used a mouse model in which proliferating cells produce the firefly’s light-emitting protein. In this animal, alcohol exposure transiently “turns off the light”, indicating a negative effect on cell proliferation in the bone marrow and spleen. Pharmacological treatment with substances interfering with ethanol metabolism, reducing acetaldehyde production, partially restores the physiological cell proliferation rate. Over 560 million people worldwide have increased susceptibility to acetaldehyde toxicity and 4% of cancer deaths are attributable to alcohol. Our model might provide a suitable tool to further investigate in vivo the effects of alcohol metabolism and aldehydes production on carcinogenesis. Abstract Endogenous acetaldehyde production from the metabolism of ingested alcohol exposes hematopoietic progenitor cells to increased genotoxic risk. To develop possible therapeutic strategies to prevent or reverse alcohol abuse effects, it would be critical to determine the temporal progression of acute ethanol toxicity on progenitor cell numbers and proliferative status. We followed the variation of the cell proliferation rate in bone marrow and spleen in response to acute ethanol intoxication in the MITO-Luc mouse, in which NF-Y-dependent cell proliferation can be assessed in vivo by non-invasive bioluminescent imaging. One week after ethanol administration, bioluminescent signals in bone marrow and spleen decreased below the level corresponding to physiological proliferation, and they progressively resumed to pre-treatment values in approximately 4 weeks. Boosting acetaldehyde catabolism by administration of an aldehyde dehydrogenase activity activator or administration of polyphenols with antioxidant activity partially restored bone marrow cells’ physiological proliferation. These results indicate that in this mouse model, bioluminescent alteration reflects the reduction of the physiological proliferation rate of bone marrow progenitor cells due to the toxic effect of aldehydes generated by alcohol oxidation. In summary, this study presents a novel view of the impact of acute alcohol intake on bone marrow cell proliferation in vivo.
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Affiliation(s)
- Silvia Baldari
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (S.B.); (F.P.); (B.P.)
| | - Isabella Manni
- Stabilimento Allevatore Fornitore Utilizzatore (SAFU), IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (I.M.); (G.P.)
| | - Giuliana Di Rocco
- Unit of Cellular Networks and Molecular Therapeutic Targets, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy;
| | - Francesca Paolini
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (S.B.); (F.P.); (B.P.)
| | - Belinda Palermo
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (S.B.); (F.P.); (B.P.)
| | - Giulia Piaggio
- Stabilimento Allevatore Fornitore Utilizzatore (SAFU), IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (I.M.); (G.P.)
| | - Gabriele Toietta
- Tumor Immunology and Immunotherapy Unit, IRCCS-Regina Elena National Cancer Institute, 00144 Rome, Italy; (S.B.); (F.P.); (B.P.)
- Correspondence: ; Tel.: +39-06-5266-2604
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12
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Requena-Ocaña N, Araos P, Flores M, García-Marchena N, Silva-Peña D, Aranda J, Rivera P, Ruiz JJ, Serrano A, Pavón FJ, Suárez J, Rodríguez de Fonseca F. Evaluation of neurotrophic factors and education level as predictors of cognitive decline in alcohol use disorder. Sci Rep 2021; 11:15583. [PMID: 34341419 PMCID: PMC8328971 DOI: 10.1038/s41598-021-95131-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023] Open
Abstract
Cognitive reserve (CR) is the capability of an individual to cope with a brain pathology through compensatory mechanisms developed through cognitive stimulation by mental and physical activity. Recently, it has been suggested that CR has a protective role against the initiation of substance use, substance consumption patterns and cognitive decline and can improve responses to treatment. However, CR has never been linked to cognitive function and neurotrophic factors in the context of alcohol consumption. The present cross-sectional study aims to evaluate the association between CR (evaluated by educational level), cognitive impairment (assessed using a frontal and memory loss assessment battery) and circulating levels of brain-derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3) in patients with alcohol use disorder (AUD). Our results indicated that lower educational levels were accompanied by earlier onset of alcohol consumption and earlier development of alcohol dependence, as well as impaired frontal cognitive function. They also suggest that CR, NT-3 and BDNF may act as compensatory mechanisms for cognitive decline in the early stages of AUD, but not in later phases. These parameters allow the identification of patients with AUD who are at risk of cognitive deterioration and the implementation of personalized interventions to preserve cognitive function.
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Affiliation(s)
- Nerea Requena-Ocaña
- Mental Health Clinical Management Unit, Institute of Biomedical Research of Malaga-IBIMA, Regional University Hospital of Málaga, 29010, Málaga, Spain.
- School of Psychology, Complutense University of Madrid, Madrid, Spain.
- Laboratorio de Investigación, IBIMA, Hospital Universitario Regional de Málaga, Avenida Carlos Haya 82, 29010, Málaga, Spain.
| | - Pedro Araos
- Mental Health Clinical Management Unit, Institute of Biomedical Research of Malaga-IBIMA, Regional University Hospital of Málaga, 29010, Málaga, Spain
- Department of Psychobiology and Methodology of Behavioral Sciences, School of Psychology, University of Málaga, 29010, Málaga, Spain
| | - María Flores
- Mental Health Clinical Management Unit, Institute of Biomedical Research of Malaga-IBIMA, Regional University Hospital of Málaga, 29010, Málaga, Spain
| | - Nuria García-Marchena
- Mental Health Clinical Management Unit, Institute of Biomedical Research of Malaga-IBIMA, Regional University Hospital of Málaga, 29010, Málaga, Spain
| | - Daniel Silva-Peña
- Mental Health Clinical Management Unit, Institute of Biomedical Research of Malaga-IBIMA, Regional University Hospital of Málaga, 29010, Málaga, Spain
| | - Jesús Aranda
- Mental Health Clinical Management Unit, Institute of Biomedical Research of Malaga-IBIMA, Regional University Hospital of Málaga, 29010, Málaga, Spain
- School of Medicine, University of Málaga, 29071, Málaga, Spain
| | - Patricia Rivera
- Mental Health Clinical Management Unit, Institute of Biomedical Research of Malaga-IBIMA, Regional University Hospital of Málaga, 29010, Málaga, Spain
| | - Juan Jesús Ruiz
- Provincial Drug Addiction Center of Málaga, Provincial Council of Málaga, Málaga, Spain
| | - Antonia Serrano
- Mental Health Clinical Management Unit, Institute of Biomedical Research of Malaga-IBIMA, Regional University Hospital of Málaga, 29010, Málaga, Spain
| | - Francisco Javier Pavón
- Mental Health Clinical Management Unit, Institute of Biomedical Research of Malaga-IBIMA, Regional University Hospital of Málaga, 29010, Málaga, Spain
- Cardiac Clinical Management Unit, IBIMA, University Hospital Virgen de la Victoria, 29010, Málaga, Spain
| | - Juan Suárez
- Mental Health Clinical Management Unit, Institute of Biomedical Research of Malaga-IBIMA, Regional University Hospital of Málaga, 29010, Málaga, Spain.
- Department of Human Anatomy, Legal Medicine and History of Science, IBIMA, Facultad de Medicina, University of Málaga, Bulevar Louis Pausteur, 29071, Málaga, Spain.
| | - Fernando Rodríguez de Fonseca
- Mental Health Clinical Management Unit, Institute of Biomedical Research of Malaga-IBIMA, Regional University Hospital of Málaga, 29010, Málaga, Spain.
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13
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Coccini T, Ottonello M, Spigno P, Malovini A, Fiabane E, Roda E, Signorini C, Pistarini C. Biomarkers for alcohol abuse/withdrawal and their association with clinical scales and temptation to drink. A prospective pilot study during 4-week residential rehabilitation. Alcohol 2021; 94:43-56. [PMID: 33887366 DOI: 10.1016/j.alcohol.2021.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 12/30/2022]
Abstract
A bulk of evidence in the field of translational medicine applied to clinical toxicology and rehabilitation has highlighted the possibility of using biomarkers as a support in the diagnosis of alcohol-related diseases and in monitoring of alcohol withdrawal. In a cohort of 55 subjects admitted to a 4-week residential rehabilitation period for alcohol detoxification, we applied a complementary approach correlating novel and conventional peripheral blood and urine parameters in combination with clinical and functional evaluation, contextually considered with the patient's history. Biomarkers of oxidative, inflammatory, hepatic, and neurochemical effects paralleled by alcohol craving and clinical scale measurements were determined at two specific time points, i.e., admission and discharge. Concerning the post-discharge assessment (i.e., relapse evaluation one month after discharge), a follow-up oral interview during a clinical examination was applied to evaluate alcohol abstinence.Selected biomarkers, i.e., MCP1, F2-IsoPs, and SOD1, were altered in chronic alcoholics at admission, and then showed a clearly changing trend during hospitalization. Our findings demonstrated that these specific non-traditional biomarkers, measured together with more conventional ones (e.g., CDT, EtG, IL8, ALT, AST, GGT), could represent novel key parameters for monitoring alcohol use disorders and withdrawal, being also suggestive of the complexity of the psychoneuroimmune response to alcohol. A general improvement in psychological functioning (i.e., decreases in anxiety, depression, and psychological distress) was also revealed during the 4-week rehabilitation treatment, paralleled by an increase of well-being and positive changes in terms of scores. Moreover, a positive association between SOD1 and drink craving at admission was evidenced. Notably, both SOD1 and well-being displayed a significant relation with lower risk of alcohol relapse one month after discharge, indicating that SOD1 is a good predictor of reduced relapse probability. This 4-week residential rehabilitation protocol represents a sound strategy enabling identification of alcohol use disorders and monitoring of alcohol addiction state and withdrawal. However, it has to be emphasized that results derived from this pilot study need to be extensively validated in large and independent cohorts of subjects.
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Affiliation(s)
- Teresa Coccini
- Laboratory of Clinical and Experimental Toxicology, Pavia Poison Centre, National Toxicology Information Centre, Toxicology Unit, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy.
| | - Marcella Ottonello
- Department of Physical and Rehabilitation Medicine, ICS Maugeri Spa - SB, Institute of G Nervi, Genoa, Italy
| | - Paola Spigno
- Department of Physical and Rehabilitation Medicine, ICS Maugeri Spa - SB, Institute of G Nervi, Genoa, Italy
| | - Alberto Malovini
- Laboratory of Informatics and Systems Engineering for Clinical Research, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Elena Fiabane
- Department of Physical and Rehabilitation Medicine, ICS Maugeri Spa - SB, Institute of G Nervi, Genoa, Italy; Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
| | - Elisa Roda
- Laboratory of Clinical and Experimental Toxicology, Pavia Poison Centre, National Toxicology Information Centre, Toxicology Unit, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy; Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Pavia, Italy
| | - Cinzia Signorini
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Caterina Pistarini
- Department of Physical and Rehabilitation Medicine, ICS Maugeri Spa - SB, Institute of G Nervi, Genoa, Italy
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14
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Yun JA, Jeong KS, Ahn YS, Han Y, Choi KS. The Interaction of Inflammatory Markers and Alcohol-Use on Cognitive Function in Korean Male Firefighters. Psychiatry Investig 2021; 18:205-213. [PMID: 33685038 PMCID: PMC8016693 DOI: 10.30773/pi.2020.0101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 11/20/2020] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE Cognitive functions have been shown to become impaired due to alcoholism. Recently, neuroinflammation gained attention for playing a role in the neurotoxic effect of alcohol. However, there is limited data on the relationship between alcohol and cognitive function, based on the mechanism of inflammation. This study examined whether the interaction between alcohol use and pro-inflammatory biomarkers is related to cognitive function in Korean male firefighters. METHODS A total of 474 firefighters were assessed for alcohol-related problems using CAGE, cognitive functions, and pro-inflammatory biomarkers (CRP, IL-6, TNF-α). Sequential multiple regression analyses were conducted to determine if inflammatory markers moderate the relationship between alcohol use and cognitive function. RESULTS Only a decreased attentional function was associated with the interaction of alcohol use and inflammatory markers, after controlling for age, sex, body mass index, lipid profiles, smoking, depression, fatigue, self-reported hypertension, diabetes, and musculoskeletal problems. CONCLUSION This study revealed that the interaction between alcohol use and inflammation is related to attentional function in Korean male firefighters. Additionally, this cross-sectional study suggests that diminishing attention, related to alcohol use, may be based on the mechanism of inflammation.
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Affiliation(s)
- Ji-Ae Yun
- Department of Neuropsychiatry, Eulji University School of Medicine, Daejeon, Republic of Korea.,Department of Neuropsychiatry, Eulji University Hospital, Daejeon, Republic of Korea
| | - Kyoung Sook Jeong
- Department of Preventive Medicine, Institute Occupational and Environmental Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Yeon-Soon Ahn
- Department of Preventive Medicine, Institute Occupational and Environmental Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Yuri Han
- Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Kyeong-Sook Choi
- Department of Neuropsychiatry, Eulji University School of Medicine, Daejeon, Republic of Korea.,Department of Neuropsychiatry, Eulji University Hospital, Daejeon, Republic of Korea
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15
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García-Marchena N, Maza-Quiroga R, Serrano A, Barrios V, Requena-Ocaña N, Suárez J, Chowen JA, Argente J, Rubio G, Torrens M, López-Gallardo M, Marco EM, Castilla-Ortega E, Santín LJ, Rodríguez de Fonseca F, Pavón FJ, Araos P. Abstinent patients with alcohol use disorders show an altered plasma cytokine profile: Identification of both interleukin 6 and interleukin 17A as potential biomarkers of consumption and comorbid liver and pancreatic diseases. J Psychopharmacol 2020; 34:1250-1260. [PMID: 32536325 DOI: 10.1177/0269881120928176] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Recent studies have demonstrated that alcohol consumption can modulate the immune system by directly activating natural immunity and triggering inflammatory processes in the central nervous system and in peripheral organs, such as the liver and pancreas. Patients with alcohol use disorders have an elevated frequency of comorbid mental disorders and gut diseases (i.e. fatty liver and pancreatitis) that complicate diagnosis, treatment and prognosis. AIMS The present study aims to explore possible associations in circulating plasma cytokine concentrations in abstinent patients diagnosed with alcohol use disorders. METHODS To this end, 85 abstinent subjects with alcohol use disorders from an outpatient setting and 55 healthy subjects were evaluated for both substance and mental disorders. The plasma levels of cytokines interleukin 1 beta, interleukin 4, interleukin 6, interleukin 17A, interferon gamma and tumour necrosis alpha were determined and their association with (a) history of alcohol consumption, (b) psychiatric comorbidity and (c) liver/pancreas comorbidities was explored. RESULTS We found that plasma concentrations of interleukin 1 beta, interleukin 6 and tumour necrosis alpha were increased, whereas plasma concentrations of interleukin 4, interleukin 17A and interferon gamma were decreased in abstinent alcohol use disorder patients as compared with control subjects. Moreover, we found that changes in interleukin 6 and interleukin 17A plasma concentrations in alcohol use disorder patients were associated with the presence of liver and pancreatic diseases. CONCLUSION The present results suggest alcohol use disorder is associated with alterations of plasma cytokines, being interleukin 6 and interleukin 17A potential biomarkers of the presence of comorbidities of digestive organs. The clinical relevance of these findings is discussed in the context of alcohol-induced inflammatory processes.
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Affiliation(s)
- Nuria García-Marchena
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Málaga, Spain.,Unidad de Adicciones, Servicio de Medicina Interna, Institut Germans Trias i Pujol (IGTP), Badalona, Spain
| | - Rosa Maza-Quiroga
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Antonia Serrano
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Vicente Barrios
- Departments of Pediatrics and Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.,Department of Pediatrics, Universidad Autónoma de Madrid, Madrid, Spain.,Centro de Investigación Biomédica en Red de Fisiopatología de Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.,IMDEA Food Institute, Madrid, Spain
| | - Nerea Requena-Ocaña
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Juan Suárez
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Julie Ann Chowen
- Departments of Pediatrics and Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.,Department of Pediatrics, Universidad Autónoma de Madrid, Madrid, Spain.,Centro de Investigación Biomédica en Red de Fisiopatología de Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.,IMDEA Food Institute, Madrid, Spain
| | - Jesús Argente
- Departments of Pediatrics and Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Madrid, Spain.,Department of Pediatrics, Universidad Autónoma de Madrid, Madrid, Spain.,Centro de Investigación Biomédica en Red de Fisiopatología de Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.,IMDEA Food Institute, Madrid, Spain
| | - Gabriel Rubio
- Servicio de Psiquiatría, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Marta Torrens
- Institut de Neuropsiquiatria i Addiccions del Parc de Salut Mar, Barcelona, Spain
| | - Meritxell López-Gallardo
- Departamento de Fisiología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Eva María Marco
- Departamento de Fisiología II, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain
| | - Estela Castilla-Ortega
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Málaga, Spain
| | - Luis Javier Santín
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Málaga, Spain
| | - Fernando Rodríguez de Fonseca
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Francisco Javier Pavón
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Málaga, Spain.,Unidad de Gestión Clínica del Corazón, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Virgen de la Victoria de Málaga, Málaga, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, Madrid, Spain
| | - Pedro Araos
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Málaga, Spain.,Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Málaga, Spain
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16
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Witt SH, Frank J, Frischknecht U, Treutlein J, Streit F, Foo JC, Sirignano L, Dukal H, Degenhardt F, Koopmann A, Hoffmann S, Koller G, Pogarell O, Preuss UW, Zill P, Adorjan K, Schulze TG, Nöthen M, Spanagel R, Kiefer F, Rietschel M. Acute alcohol withdrawal and recovery in men lead to profound changes in DNA methylation profiles: a longitudinal clinical study. Addiction 2020; 115:2034-2044. [PMID: 32080920 DOI: 10.1111/add.15020] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 10/24/2019] [Accepted: 02/14/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Withdrawal is a serious and sometimes life-threatening event in alcohol-dependent individuals. It has been suggested that epigenetic processes may play a role in this context. This study aimed to identify genes and pathways involved in such processes which hint to relevant mechanisms underlying withdrawal. DESIGN Cross-sectional case-control study and longitudinal within-cases study during alcohol withdrawal and after 2 weeks of recovery SETTING: Addiction medicine departments in two university hospitals in southern Germany. PARTICIPANTS/CASES Ninety-nine alcohol-dependent male patients receiving in-patient treatment and suffering from severe withdrawal symptoms during detoxification and 95 age-matched male controls. MEASUREMENTS Epigenome-wide methylation patterns were analyzed in patients during acute alcohol withdrawal and after 2 weeks of recovery, as well as in age-matched controls using Illumina EPIC bead chips. Methylation levels of patients and controls were tested for association with withdrawal status. Tests were adjusted for technical and batch effects, age, smoking and cell type distribution. Single-site analysis, as well as an analysis of differentially methylated regions and gene ontology analysis, were performed. FINDINGS We found pronounced epigenome-wide significant [false discovery rate (FDR) < 0.05] differences between patients during withdrawal and after 2 weeks [2876 cytosine-phosphate-guanine (CpG) sites], as well as between patients and controls (9845 and 6094 CpG sites comparing patients at time-point 1 and patients at time-point 2 versus controls, respectively). Analysis of differentially methylated regions and involved pathways revealed an over-representation of gene ontology terms related to the immune system response. Differences between patients and controls diminished after recovery (> 800 CpG sites less), suggesting a partial reversibility of alcohol- and withdrawal-related methylation. CONCLUSIONS Acute alcohol withdrawal in severely dependent male patients appears to be associated with extensive changes in epigenome-wide methylation patterns. In particular, genes involved in immune system response seem to be affected by this condition.
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Affiliation(s)
- Stephanie H Witt
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Josef Frank
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Ulrich Frischknecht
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Jens Treutlein
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Fabian Streit
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Jerome C Foo
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Lea Sirignano
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Helene Dukal
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Franziska Degenhardt
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
| | - Anne Koopmann
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Sabine Hoffmann
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Gabi Koller
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany
| | - Oliver Pogarell
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany
| | - Ulrich W Preuss
- Department of Psychiatry, Psychotherapy, Psychosomatics, Martin-Luther-University (MLU), Halle/Saale, Germany
| | - Peter Zill
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany
| | - Kristina Adorjan
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany.,Institute of Psychiatric Phenomics and Genomics (IPPG), University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany
| | - Thomas G Schulze
- Institute of Psychiatric Phenomics and Genomics (IPPG), University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany
| | - Markus Nöthen
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
| | - Rainer Spanagel
- Institute of Psychopharmacology, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Falk Kiefer
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Marcella Rietschel
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
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17
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Adams C, Conigrave JH, Lewohl J, Haber P, Morley KC. Alcohol use disorder and circulating cytokines: A systematic review and meta-analysis. Brain Behav Immun 2020; 89:501-512. [PMID: 32805393 DOI: 10.1016/j.bbi.2020.08.002] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 07/30/2020] [Accepted: 08/07/2020] [Indexed: 12/29/2022] Open
Abstract
There has been emerging interest in the role of the immune system in the pathophysiology of alcohol use disorder (AUD) given alcohol consumption stimulates immune cells to secrete peripheral pro- and anti-inflammatory cytokines. We conducted a systematic review and meta-analysis to determine whether an abnormal inflammatory cytokine profile exists in AUD patients compared to controls and whether cytokine levels were correlated with behavioural and psychiatric variables. Using the PRISMA (Preferred Reporting Items for Systematic reviews and Meta-analyses) guidelines, a comprehensive search of electronic databases (MEDLINE, EMBASE, Web of Science Core Collection and the Cochrane Library) was conducted, for AUD-related terms in combination with cytokine-related terms. Patients had to meet established criteria for AUD and be compared with healthy controls. A critical appraisal was completed using the Newcastle-Ottawa Scale. Twenty-four papers met the inclusionary criteria with 46 serum or plasma cytokines measured without immune stimulation whereby 17 studies had sufficient data for inclusion in the meta-analysis. Collectively, AUD patients had greater cytokine concentrations than control patients g = 0.85 [ 95% CI 0.42, 1.29]. Differences in cytokine concentrations between AUD patients and controls varied within-study by stage of illness (R(2)2 = 19.56%). The greatest differences were reported when AUD patients were engaging in active drinking g = 0.96 [0.49, 1.43] or were in alcohol withdrawal g = 1.25 [0.71, 1.80]. Baseline findings were moderated within and between studies by cytokine identity R(2)2 = 51.10%; R(3)2 = 44.89%. Cytokine concentrations were not significantly correlated with self-reported craving for alcohol, but were with alcohol consumption r = 0.22 [-0.05, 0.46]. The relationship between cytokine concentration and consumption was moderated by cytokine identity (R(2)2 = 100.00%; R(3)2 = 100.00%), and sample age (R(2)2 = 0.00%; R(3)2 = 95.76%). There is sufficient evidence to support the presence of an abnormal circulating cytokine profile in AUD which may vary with respect to the different stages of AUD illness.
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Affiliation(s)
- Claire Adams
- University of Sydney, Faculty of Medicine and Health, Central Clinical School, Discipline of Addiction Medicine, New South Wales, Australia
| | - James H Conigrave
- University of Sydney, Faculty of Medicine and Health, Central Clinical School, Discipline of Addiction Medicine, Centre of Research Excellence in Indigenous Health and Alcohol, New South Wales, Australia
| | - Joanne Lewohl
- School of Medical Science, Griffith University, Gold Coast, QLD, Australia
| | - Paul Haber
- University of Sydney, Faculty of Medicine and Health, Central Clinical School, Discipline of Addiction Medicine, New South Wales, Australia; Drug Health Services, Royal Prince Alfred Hospital, NSW, Australia
| | - Kirsten C Morley
- University of Sydney, Faculty of Medicine and Health, Central Clinical School, Discipline of Addiction Medicine, New South Wales, Australia.
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18
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Malacco NLSDO, Souza JAM, Martins FRB, Rachid MA, Simplicio JA, Tirapelli CR, Sabino ADP, Queiroz-Junior CM, Goes GR, Vieira LQ, Souza DG, Pinho V, Teixeira MM, Soriani FM. Chronic ethanol consumption compromises neutrophil function in acute pulmonary Aspergillus fumigatus infection. eLife 2020; 9:58855. [PMID: 32701055 PMCID: PMC7398701 DOI: 10.7554/elife.58855] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/22/2020] [Indexed: 12/16/2022] Open
Abstract
Chronic ethanol consumption is a leading cause of mortality worldwide, with higher risks to develop pulmonary infections, including Aspergillus infections. Mechanisms underlying increased susceptibility to infections are poorly understood. Chronic ethanol consumption induced increased mortality rates, higher Aspergillus fumigatus burden and reduced neutrophil recruitment into the airways. Intravital microscopy showed decrease in leukocyte adhesion and rolling after ethanol consumption. Moreover, downregulated neutrophil activation and increased levels of serum CXCL1 in ethanol-fed mice induced internalization of CXCR2 receptor in circulating neutrophils. Bone marrow-derived neutrophils from ethanol-fed mice showed lower fungal clearance and defective reactive oxygen species production. Taken together, results showed that ethanol affects activation, recruitment, phagocytosis and killing functions of neutrophils, causing susceptibility to pulmonary A. fumigatus infection. This study establishes a new paradigm in innate immune response in chronic ethanol consumers. Alcoholism is a chronic disease that has many damaging effects on the body. Over long periods, excessive alcohol intake weakens the immune system, putting consumers at increased risk of getting lung infections such as pneumonia. Some forms of pneumonia can be caused by the fungus Aspergillus fumigatus. This microbe does not tend to be a problem for healthy individuals, but it can be fatal for those with impaired immune systems. Here, Malacco et al. wanted to find out why excessive alcohol consumers are more prone to pneumonia. To test this, the researchers used two groups of mice that were either fed plain water or water containing ethanol. After 12 weeks, both groups were infected with Aspergillus fumigatus. The results showed that alcohol-fed mice were more susceptible to the infection caused by strong inflammation of the lungs. Normally, the immune system confronts a lung infection by activating a group of defense cells called neutrophils, which travel through the blood system to the infection site. Once in the right spot, neutrophils get to work by releasing toxins that kill the fungus. Malacco et al. discovered that after chronic alcohol consumption, neutrophils were less reactive to inflammatory signals and less likely to reach the lungs. They were also less effective in dealing with the infection. Neutrophil released fewer toxins and were thus less able to kill the microbial cells. These findings demonstrate for the first time how alcohol can affect immune cells during infection and pave the way for new possibilities to prevent fatal lung infections in excessive alcohol consumers. A next step would be to identify how alcohol acts on other processes in the body and to find a way to modulate or even revert the changes it causes.
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Affiliation(s)
| | | | | | | | | | - Carlos Renato Tirapelli
- Department of Psychiatric Nursing and Human Sciences, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Adriano de Paula Sabino
- Department of Clinical and Toxicological Analysis, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | - Leda Quercia Vieira
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Danielle Glória Souza
- Department of Microbiology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Vanessa Pinho
- Department of Morphology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Mauro Martins Teixeira
- Department of Biochemistry and Immunology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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19
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Portelli J, Wiers CE, Li X, Deschaine SL, McDiarmid GR, Bermpohl F, Leggio L. Peripheral proinflammatory markers are upregulated in abstinent alcohol-dependent patients but are not affected by cognitive bias modification: Preliminary findings. Drug Alcohol Depend 2019; 204:107553. [PMID: 31541874 PMCID: PMC6913873 DOI: 10.1016/j.drugalcdep.2019.107553] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 06/28/2019] [Accepted: 07/07/2019] [Indexed: 01/16/2023]
Abstract
BACKGROUND Inflammatory pathways are known to be negatively affected in patients with alcohol use disorder (AUD). Cognitive bias modification (CBM), an emerging behavioral treatment that involves the 're-training' of cognitive biases using computerized tasks, has been reported to reduce alcohol craving and relapse rates. The aim of this study was to compare peripheral concentrations of the proinflammatory biomarkers IL-18, IL-6, IL-1β, TNF-α and CRP in AUD patients versus controls and to identify whether CBM treatment affected these biomarkers in AUD patients. METHODS This 3-week double-blind randomized controlled study tested 36 male abstinent AUD patients receiving CBM or placebo-training, who were also compared to 18 male healthy controls. The approach avoidance task (AAT) was used to test the AUD patients before and after training. CBM training took place over 6 sessions, using a joystick-based approach-avoidance task. Blood samples were collected after the pre- and post-AAT test sessions for the AUD groups, and during an outpatient appointment with the controls. RESULTS AUD patients, versus controls, presented with significantly higher plasma levels of TNF- α (P < 0.0001) and CRP (P = 0.0031). No changes in the CBM versus placebo groups were noted in IL-18, TNF-α and CRP concentrations following pre-post change or within group pretest- posttest analysis. IL-6 and IL-1β levels fell under the lower detection limit, thus were not included in the final analyses. CONCLUSIONS This study confirms that the inflammatory system is altered in AUD. This was the first study that investigated whether CBM training affected proinflammatory markers in AUD patients.
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Affiliation(s)
- Jeanelle Portelli
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Basic Research and National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Corinde E. Wiers
- Laboratory of Neuroimaging, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Xiaobai Li
- Biostatistics and Clinical Epidemiology Service, Clinical Center, National Institutes of Health, Bethesda, MD, USA
| | - Sara L. Deschaine
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Basic Research and National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Gray R. McDiarmid
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Basic Research and National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Felix Bermpohl
- Department of Psychiatry and Psychotherapy, Charité-Universitätsmedizin Berlin, Germany.,Berlin School of Mind and Brain, Humboldt Universität zu Berlin, Germany
| | - Lorenzo Leggio
- Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, National Institute on Alcohol Abuse and Alcoholism Division of Intramural Clinical and Basic Research and National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, Bethesda, MD, USA; Medication Development Program, National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, Baltimore, USA; Center for Alcohol and Addiction Studies, Brown University, Providence, RI, USA.
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20
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McClintock AS, Goldberg SB, Coe CL, Zgierska AE. Mindfulness practice predicts interleukin-6 responses to a mindfulness-based alcohol relapse prevention intervention. J Subst Abuse Treat 2019; 105:57-63. [PMID: 31443893 DOI: 10.1016/j.jsat.2019.07.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/27/2019] [Accepted: 07/26/2019] [Indexed: 01/23/2023]
Abstract
Chronic alcohol misuse can result in chronically elevated interleukin (IL)-6, a pro-inflammatory cytokine, in the bloodstream. Given that Mindfulness-Based Relapse Prevention (MBRP) has been shown to reduce alcohol misuse, MBRP might also be effective in reducing IL-6 concentrations. Past research has found, however, that IL-6 does not respond consistently to mindfulness-based interventions. Building on prior studies, we examined whether between-person variability in engagement with mindfulness training (i.e., formal mindfulness practice time) is associated with between-person variability in changes in serum IL-6, using data from a randomized controlled trial evaluating MBRP for Alcohol Dependence (MBRP-A). Participants were 72 alcohol dependent adults (mean age = 43.4 years, 63.9% male, 93.1% White) who received a minimum dose (i.e., at least four sessions) of MBRP-A either at the start of the trial (n = 46) or after a 26-week delay (n = 26). IL-6 concentrations did not significantly change from pre- to post-intervention for the full sample. Nevertheless, greater mindfulness practice time was significantly associated with reduced IL-6 levels (r = -0.27). The association between practice time and IL-6 changes remained significant when controlling for intervention timing (i.e., immediate or after the 26-week delay), demographic characteristics, and changes in mindful awareness, obsessive-compulsive drinking, and depressive symptoms. The association between practice time and IL-6 changes was not significant when omitting the minimum treatment dose requirement. Overall, results suggest that the level of engagement in mindfulness training may predict changes in the inflammatory pathophysiology in adults with alcohol dependence.
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Affiliation(s)
- Andrew S McClintock
- Department of Family Medicine and Community Health, University of Wisconsin-Madison, United States of America.
| | - Simon B Goldberg
- Department of Counseling Psychology, University of Wisconsin-Madison, United States of America
| | - Christopher L Coe
- Department of Psychology, University of Wisconsin-Madison, United States of America
| | - Aleksandra E Zgierska
- Department of Family Medicine and Community Health, University of Wisconsin-Madison, United States of America
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21
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Catale C, Bussone S, Lo Iacono L, Carola V. Microglial alterations induced by psychoactive drugs: A possible mechanism in substance use disorder? Semin Cell Dev Biol 2019; 94:164-175. [PMID: 31004753 DOI: 10.1016/j.semcdb.2019.03.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/19/2019] [Accepted: 03/29/2019] [Indexed: 12/11/2022]
Abstract
Recently, the xenobiotic hypothesis has implicated the immune system in targeting substances of abuse as foreign molecules and stimulating inflammatory responses. Microglial cells are the resident immune cells of the central nervous system and function in homeostatic surveillance. Microglial changes that are induced by exposure to substances of abuse appear to mediate in part the establishment of addiction and the persistence of drug-mediated biological and behavioral changes. In this context, interest in the study of drug-microglia interactions has increased recently. This review summarizes the most recent preclinical rodent and clinical studies on the interaction between microglia and various classes of drugs of abuse, such as ethanol, psychostimulants, and opioids. The principal biological mechanisms of the communication between substances of abuse and microglia will be described to consider putative mechanisms of the establishment of drug addiction and future potential targets for treating substance use disorder.
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Affiliation(s)
- Clarissa Catale
- Department of Psychology, University of Rome "La Sapienza", Via dei Marsi, 78, 00185 Rome, Italy
| | - Silvia Bussone
- Department of Dynamic and Clinical Psychology, University of Rome "La Sapienza", Via degli Apuli 1, 00185 Rome, Italy
| | - Luisa Lo Iacono
- Department of Psychology, University of Rome "La Sapienza", Via dei Marsi, 78, 00185 Rome, Italy; IRCCS Santa Lucia Foundation, Via Fosso di Fiorano 64, 00143 Rome, Italy
| | - Valeria Carola
- Department of Dynamic and Clinical Psychology, University of Rome "La Sapienza", Via degli Apuli 1, 00185 Rome, Italy; IRCCS Santa Lucia Foundation, Via Fosso di Fiorano 64, 00143 Rome, Italy.
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22
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Regional elevations in microglial activation and cerebral glucose utilization in frontal white matter tracts of rhesus monkeys following prolonged cocaine self-administration. Brain Struct Funct 2019; 224:1417-1428. [PMID: 30747315 DOI: 10.1007/s00429-019-01846-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 02/06/2019] [Indexed: 12/18/2022]
Abstract
It has been shown that exposure to cocaine can result in neuroinflammatory responses. Microglia, the resident CNS immune cells, undergo a transition to an activated state when challenged. In rodents, and possibly humans, cocaine exposure activates microglia. The goal of this study was to assess the extent and magnitude of microglial activation in rhesus monkeys with an extensive history of cocaine self-administration. Male rhesus monkeys (N = 4/group) were trained to respond on a fixed-interval 3-min schedule of food or 0.3 mg/kg/injection cocaine presentation (30 reinforcers/session) for 300 sessions. At the end of the final session, monkeys were administered 2-[14C]deoxyglucose intravenously and 45 min later euthanized. Brain sections were used for autoradiographic assessments of glucose utilization and for microglia activation with [3H]PK11195, a marker for the microglial 18-kDa translocator protein. There were no group differences in gray matter [3H]PK11195 binding, while binding was significantly greater in cocaine self-administration animals as compared to food controls in 8 of the 11 white matter tracts measured at the striatal level. Binding did not differ from control at other levels. There were also significant increases in white matter local cerebral glucose utilization at the striatal level, which were positively correlated with [3H]PK11195 binding. The present findings demonstrate an elevation in [3H]PK11195 binding in forebrain white matter tracts of nonhuman primates with a prolonged history of cocaine self-administration. These elevations were also associated with greater cerebral metabolic rates. These data suggest that white matter deficits may contribute to behavioral, motivational, and cognitive impairments observed in cocaine abusers.
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23
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Coppens V, Morrens M, Destoop M, Dom G. The Interplay of Inflammatory Processes and Cognition in Alcohol Use Disorders-A Systematic Review. Front Psychiatry 2019; 10:632. [PMID: 31572234 PMCID: PMC6751886 DOI: 10.3389/fpsyt.2019.00632] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 08/06/2019] [Indexed: 12/12/2022] Open
Abstract
Rationale: Of late, evidence emerges that the pathophysiology of psychiatric diseases and their affiliated symptomatologies are at least partly contributable to inflammatory processes. Also in alcohol use disorders (AUD), this interaction is strongly apparent, with severely immunogenic liver cirrhosis being one of the most critical sequelae of chronic abusive drinking. This somatic immune system activation negatively impacts brain functioning, and additionally, alcohol abuse appears to have a direct detrimental effect on the brain by actively stimulating its immune cells and responses. As cognitive decline majorly contributes to AUD's debility, it is important to know to what extent impairment of cognitive functioning is due to these (neuro-)inflammatory aberrations. Method: We hereby summarize the current existing literature on the interplay between AUD, inflammation, and cognition in a systematic review according to the PRISMA-P guidelines for the systematic review. Main findings: Although literature on the role of inflammation in alcohol use-related cognitive deficiency remains scarce, current findings indicate that pro-inflammatory processes indeed result in exacerbation of several domains of cognitive deterioration. Interestingly, microglia, the immune cells of the brain, appear to exert initial compensatory neuroprotective functionalities upon acute ethanol exposure while chronic alcohol intake seems to attenuate these responses and overall microglial activity. Conclusion: As these results indicate inflammation to be of importance in cognitive impairment following alcohol consumption and might as such provide alternate therapeutic avenues, a considerable increase in research efforts in this domain is urgently required.
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Affiliation(s)
- Violette Coppens
- Faculty of Medicine and Health Sciences, Collaborative Antwerp Psychiatric Research Institute (CAPRI), University of Antwerp, Antwerp, Belgium.,Scientific Initiative of Neuropsychiatric and Psychopharmacological Studies (SINAPS), University Department of Psychiatry, Duffel, Belgium
| | - Manuel Morrens
- Faculty of Medicine and Health Sciences, Collaborative Antwerp Psychiatric Research Institute (CAPRI), University of Antwerp, Antwerp, Belgium.,Scientific Initiative of Neuropsychiatric and Psychopharmacological Studies (SINAPS), University Department of Psychiatry, Duffel, Belgium
| | - Marianne Destoop
- Faculty of Medicine and Health Sciences, Collaborative Antwerp Psychiatric Research Institute (CAPRI), University of Antwerp, Antwerp, Belgium.,Department of Addiction, Psychiatric Hospital Multiversum, Boechout, Belgium
| | - Geert Dom
- Faculty of Medicine and Health Sciences, Collaborative Antwerp Psychiatric Research Institute (CAPRI), University of Antwerp, Antwerp, Belgium.,Department of Addiction, Psychiatric Hospital Multiversum, Boechout, Belgium
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24
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Kuo SC, Yeh YW, Chen CY, Huang CC, Ho PS, Liang CS, Lin CL, Yeh TC, Tsou CC, Yang BZ, Lu RB, Huang SY. Differential effect of the DRD3 genotype on inflammatory cytokine responses during abstinence in amphetamine-dependent women. Psychoneuroendocrinology 2018; 97:37-46. [PMID: 30005280 DOI: 10.1016/j.psyneuen.2018.06.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 05/25/2018] [Accepted: 06/29/2018] [Indexed: 11/19/2022]
Abstract
Amphetamine exposure impacts on innate and adaptive immunity and DRD3 may modulate the effect of amphetamine on the immune response. We assessed the immune-cytokine markers in 72 female patients with amphetamine dependence (AD) at baseline and after 4-week drug abstinence and in 51 healthy women. Multiplex magnetic bead assay was used to measure the plasma cytokine expression level simultaneously in all participants and DRD3 rs6280 polymorphism was genotyped in patients. We demonstrated an increase of the T helper 1 (Th1) cytokines (IL-2), Th2 cytokines (IL-4, IL-5, IL-6 and IL-10) and other cytokines (IL-1β) in the entire AD cohort. A similar cytokine pattern, along with a significantly decreased IL-8 and IL-10 levels was observed after 4-week abstinence. Among AD patients with DRD3 rs6280 TT genotype, the cytokine expression profile was consistent with total AD cohort at baseline and revealed a significant down-regulated plasma level of the Th1, Th2, and other cytokines except for IL-6 after 4-week abstinence. In AD group with DRD3 rs6280 C allele carrier, we found IL-2 level was significantly higher than healthy controls at baseline and remained higher, accompanied with a borderline increase in IL-4, IL-6 and IL-1β levels after 4-week abstinence. Our results suggest that chronic use of amphetamine increased both pro- and anti-inflammatory cytokines in AD patients, indicating the immune imbalance that may persist for 4 weeks or more. Besides, DRD3 rs6280 TT genotype may be associated with favorable recovery in general inflammatory cytokines during period of abstinence.
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Affiliation(s)
- Shin-Chang Kuo
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Yi-Wei Yeh
- Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chun-Yen Chen
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chang-Chih Huang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Buddhist Tzu Chi General Hospital, Taipei Branch, Taipei, Taiwan, ROC
| | - Pei-Shen Ho
- Department of Psychiatry, Taichung Armed Forces General Hospital, Taichung, Taiwan, ROC
| | - Chih-Sung Liang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Beitou Branch, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chun-Long Lin
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Hsinchu Branch, Taoyuan Armed Forces General Hospital, Hsinchu, Taiwan, ROC
| | - Ta-Chuan Yeh
- Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chang-Chih Tsou
- Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Bao-Zhu Yang
- Department of Psychiatry, Division of Human Genetics, Yale University School of Medicine, New Haven, CT, 06511, USA
| | - Ru-Band Lu
- Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - San-Yuan Huang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC.
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25
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Differences in immunomodulatory properties between venlafaxine and paroxetine in patients with major depressive disorder. Psychoneuroendocrinology 2018; 87:108-118. [PMID: 29055264 DOI: 10.1016/j.psyneuen.2017.10.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 09/03/2017] [Accepted: 10/10/2017] [Indexed: 01/24/2023]
Abstract
Inflammatory processes play a crucial role in the pathophysiology of depression, and identifying the specific cytokines targeted by different antidepressants is important for personalized treatment. The aims of this study were to examine whether venlafaxine and paroxetine cause different immunomodulatory effects when used to treat patients with major depression and to clarify the relationships between plasma cytokine levels and the therapeutic effectiveness of these drugs. A total of 91 Han Chinese patients with major depression completed the 8-week paroxetine or venlafaxine treatment and 90 healthy controls were recruited. A multiplex assay was used to measure cytokines levels in patients with major depression before and after an 8-week venlafaxine and paroxetine treatment. Cytokine levels were measured in healthy controls at the baseline. The 21-item Hamilton Depression Rating Scale was used to assess the changes in psychopathological symptoms from the baseline to the end point in each patient. Venlafaxine treatment caused greater decreases in the levels of interferon gamma (IFN-γ), tumor necrosis factor alpha (TNF-α), interleukin 4 (IL-4), IL-5, IL-1β, and IL-8 than did paroxetine. Paroxetine treatment increased the levels of proinflammatory cytokines IFN-γ, TNF-α, and IL-6 and decreased Th2 cytokine levels. After paroxetine treatment, IL-6 levels increased more in the non-remitter group than in the remitter group. In the remitter group, IL-4 and IL-5 levels decreased to values seen in the healthy controls. After venlafaxine treatment in both the remitter and non-remitter groups, IL-1β levels decreased to values seen in the healthy controls. Our results suggest that venlafaxine and paroxetine have different immunomodulatory properties and that venlafaxine has greater anti-inflammatory effects than paroxetine.
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26
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Weil ZM, Karelina K. Traumatic Brain Injuries during Development: Implications for Alcohol Abuse. Front Behav Neurosci 2017; 11:135. [PMID: 28775682 PMCID: PMC5517445 DOI: 10.3389/fnbeh.2017.00135] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 07/07/2017] [Indexed: 11/13/2022] Open
Abstract
Traumatic brain injuries are strongly related to alcohol intoxication as by some estimates half or more of all brain injuries involve at least one intoxicated individual. Additionally, there is mounting evidence that traumatic brain injuries can themselves serve as independent risk factors for the development of alcohol use disorders, particularly when injury occurs during juvenile or adolescent development. Here, we will review the epidemiological and experimental evidence for this phenomenon and discuss potential psychosocial mediators including attenuation of negative affect and impaired decision making as well as neurochemical mediators including disruption in the glutamatergic, GABAergic, and dopaminergic signaling pathways and increases in inflammation.
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Affiliation(s)
- Zachary M Weil
- Behavioral Neuroendocrinology Group, Department of Neuroscience, Center for Brain and Spinal Cord Repair, Ohio State University Wexner Medical CenterColumbus, OH, United States
| | - Kate Karelina
- Behavioral Neuroendocrinology Group, Department of Neuroscience, Center for Brain and Spinal Cord Repair, Ohio State University Wexner Medical CenterColumbus, OH, United States
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Neupane SP. Neuroimmune Interface in the Comorbidity between Alcohol Use Disorder and Major Depression. Front Immunol 2016; 7:655. [PMID: 28082989 PMCID: PMC5186784 DOI: 10.3389/fimmu.2016.00655] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 12/15/2016] [Indexed: 12/12/2022] Open
Abstract
Bidirectional communication links operate between the brain and the body. Afferent immune-to-brain signals are capable of inducing changes in mood and behavior. Chronic heavy alcohol drinking, typical of alcohol use disorder (AUD), is one such factor that provokes an immune response in the periphery that, by means of circulatory cytokines and other neuroimmune mediators, ultimately causes alterations in the brain function. Alcohol can also directly impact the immune functions of microglia, the resident immune cells of the central nervous system (CNS). Several lines of research have established the contribution of specific inflammatory mediators in the development and progression of depressive illness. Much of the available evidence in this field stems from cross-sectional data on the immune interactions between isolated AUD and major depression (MD). Given their heterogeneity as disease entities with overlapping symptoms and shared neuroimmune correlates, it is no surprise that systemic and CNS inflammation could be a critical determinant of the frequent comorbidity between AUD and MD. This review presents a summary and analysis of the extant literature on neuroimmune interface in the AUD–MD comorbidity.
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Affiliation(s)
- Sudan Prasad Neupane
- Norwegian National Advisory Unit on Concurrent Substance Abuse and Mental Health Disorders, Innlandet Hospital Trust, Brumunddal, Norway; Norwegian Centre for Addiction Research (SERAF), University of Oslo, Oslo, Norway
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