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Barillot L, Chauvet C, Besnier M, Jaafari N, Solinas M, Chatard A. Effect of environmental enrichment on relapse rates in patients with severe alcohol use disorder: protocol for a randomised controlled trial. BMJ Open 2023; 13:e069249. [PMID: 37173113 PMCID: PMC10186436 DOI: 10.1136/bmjopen-2022-069249] [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: 10/14/2022] [Accepted: 04/06/2023] [Indexed: 05/15/2023] Open
Abstract
INTRODUCTION Alcohol use disorder (AUD) ranks among the most prevalent psychiatric disorders worldwide. Despite current treatments, more than half of patients relapse within weeks after treatment. In animal models, exposure to environmental enrichment (EE) has been shown to be a promising approach to reduce relapse. However, controlled, multimodal EE is difficult to transpose to humans. To address this gap, this study aims at assessing the effectiveness of exposure to a newly designed EE protocol during AUD treatment in reducing relapse to alcohol use. Our EE will allow an enhancement of the standard intervention, and will combine several promising enrichment factors identified in the literature-physical activity, cognitive stimulation, mindfulness and virtual reality (VR). METHODS AND ANALYSIS A randomised controlled trial involving 135 participants receiving treatment for severe AUD will be conducted. Patients will be randomised to an intervention enhancement group or a control group. The enhanced intervention will consist of six 40-min sessions of EE spread over 9 days. During the first 20 min of these sessions, patients will practise mindfulness in multisensory VR, in virtual environments designed to practise mindfulness and use it to regulate craving induced by virtual cues or stress. Then, participants will practise indoor cycling combined with cognitive training exercises. The control group will undergo standard management for AUD. The primary outcome is relapse assessed at 2 weeks after treatment, using a questionnaire and biological indicators. Relapse will be defined as drinking at least five drinks per occasion or drinking at least five times a week. It is predicted that the group receiving the EE intervention will have a lower relapse rate than the control group. The secondary outcomes are relapse at 1 month and 3 months after treatment, craving and drug-seeking behaviour, mindfulness skills acquisition and the effect of the intervention enhancement on the perceived richness of the daily environment, assessed by questionnaires and neuropsychological tasks. ETHICS AND DISSEMINATION All participants have to give written informed consent to the investigator. This study is approved by the Ethics Committee Nord Ouest IV of Lille (reference number 2022-A01156-37). Results will be disseminated through presentations, peer-reviewed journals and seminar conferences. All information on ethical considerations and open science practices can be accessed at https://osf.io/b57uj/ TRIAL REGISTRATION NUMBER: NCT05577741.
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Affiliation(s)
- Lila Barillot
- Université de Poitiers, Centre de Recherches sur la Cognition et l'Apprentissage, Poitiers, Nouvelle-Aquitaine, France
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, Poitiers, Poitou-Charentes, France
| | - Claudia Chauvet
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, Poitiers, Poitou-Charentes, France
- Service Hospitalo-Universitaire de Psychiatrie et de Psychologie Médicale, Centre Hospitalier Henri Laborit, Poitiers, France
| | - Marc Besnier
- Université de Poitiers, Centre de Recherches sur la Cognition et l'Apprentissage, Poitiers, Nouvelle-Aquitaine, France
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, Poitiers, Poitou-Charentes, France
| | - Nematollah Jaafari
- Université de Poitiers, Centre de Recherches sur la Cognition et l'Apprentissage, Poitiers, Nouvelle-Aquitaine, France
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, Poitiers, Poitou-Charentes, France
| | - Marcello Solinas
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, Poitiers, Poitou-Charentes, France
- Université de Poitiers, Laboratoire de Neurosciences Expérimentales et Cliniques U1084, Poitiers, France
| | - Armand Chatard
- Université de Poitiers, Centre de Recherches sur la Cognition et l'Apprentissage, Poitiers, Nouvelle-Aquitaine, France
- Unité de Recherche Clinique Pierre Deniker, Centre Hospitalier Henri Laborit, Poitiers, Poitou-Charentes, France
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When asking 'are you stressed?' is not enough: Hair cortisol, subjective stress, and alcohol use during the first year of the pandemic. Psychoneuroendocrinology 2023; 150:106051. [PMID: 36758329 PMCID: PMC9899354 DOI: 10.1016/j.psyneuen.2023.106051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 02/03/2023] [Accepted: 02/03/2023] [Indexed: 02/07/2023]
Abstract
The onset of the COVID-19 pandemic was accompanied by an increase in alcohol use in a third of the population worldwide. To date, the literature shows that subjective reports of stress predicted increased alcohol use during the early stages of the pandemic. However, no studies have investigated the effect of physiological stress (via the stress hormone cortisol) on alcohol use during the pandemic. This study aimed to identify the predictive value of cortisol and/or subjective stress on alcohol use during the first year of the pandemic. Every three months, between June 2020 and March 2021, 79 healthy adults (19-54 years old) answered online questionnaires assessing alcohol use. In May 2020, participants reported pre-pandemic alcohol use, while in June 2020, participants reported current alcohol use, subjective stress measures, and provided a 6 cm hair sample. The latter allowed us to quantify the cumulative levels of cortisol produced in the three months prior to and following the start of the mandatory lockdown measures in March 2020 in Quebec, Canada. A relative change in hair cortisol was computed to quantify the physiological stress response. While controlling for sex, age, and psychiatric diagnoses, multilevel linear regressions revealed that alcohol use increased only among people with concomitant high subjective stress and elevated hair cortisol concentrations. Moreover, this increased alcohol use remained elevated one year later. This study documents the importance of simultaneously considering stress biomarkers and subjective stress to identify people at risk of increasing their alcohol use during major stressful life events.
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Peterson H, Rejeski WJ, Fanning J, Porges SW, Heilman KJ, Laurienti PJ, Gauvin L. Differential Momentary Reports of Stress and Affect Associated With Alcohol Consumption in Middle-Aged Versus Younger Adults. Subst Use Misuse 2023; 58:666-675. [PMID: 36852426 PMCID: PMC10089298 DOI: 10.1080/10826084.2023.2177967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Background: Stress is a motivator to consume alcohol, a well-documented relapse risk, and is known to differentially affect biological and psychological processes as people age.Objectives: Because alcohol consumption is known to acutely decrease stress and increase affect, this study examined differences in ratings of stress and affect in middle-aged versus younger adults who regularly consume alcohol.Methods: A sample of younger (n = 17) and middle-aged (n = 18) drinkers was studied during a 3-day period of typical alcohol consumption. Resting levels of respiratory sinus arrhythmia (RSA) were measured during a baseline study visit since RSA is a well-documented biomarker of stress and is known to decrease with age. Ecological momentary assessment (EMA) survey ratings (n = 1,598) were modeled using hierarchical regression to assess differences in stress and affect throughout the day between the two age groups.Results: As anticipated, middle-aged participants had lower RSA than those who were younger. Although the middle-aged adults showed overall lower stress, generally they also experienced higher affect than the younger adults. Middle-aged adults experienced a significant reduction in stress following drinking while no such effect was observed in the younger adults.Conclusions: To our knowledge, this is the first investigation using EMA methodology to examine stress and affect between younger and middle-aged adults who habitually consume alcohol. These cross-sectional data suggest potential momentary stress relief to engaging with moderate alcohol consumption in a middle-aged population. Future work must address this important motivational process in curtailing maintenance of alcohol consumption and preventing escalation of consumption.
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Affiliation(s)
- Hope Peterson
- Neuroscience Graduate Program, Wake Forest School of Medicine, Winston-Salem, USA
- Laboratory for Complex Brain Networks, Wake Forest Health Sciences, Winston-Salem, USA
| | - W. Jack Rejeski
- Department of Health and Exercise Science, Wake Forest University, Winston-Salem, USA
| | - Jason Fanning
- Department of Health and Exercise Science, Wake Forest University, Winston-Salem, USA
| | - Stephen W. Porges
- Kinsey Institute Taumatic Stress Research Consortium, Indiana University, Bloomington, USA
- Department of Psychiatry, UNC School of Medicine, Chapel Hill, USA
| | - Keri J. Heilman
- Department of Psychiatry, UNC School of Medicine, Chapel Hill, USA
| | - Paul J. Laurienti
- Laboratory for Complex Brain Networks, Wake Forest Health Sciences, Winston-Salem, USA
- Department of Radiology, Wake Forest School of Medicine, Wisnton-Salem, USA
| | - Lise Gauvin
- Department of Social and Preventive Medicine, Université de Montréal, Montréal, Canada
- Health Innovation and Evaluation Hub, Centre de recherche du CHUM, Montréal, Canada
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Peterson H, Laurienti PJ, Rejeski WJ, Fanning J, Gauvin L. Childhood neglect is associated with low affect and high stress in habitual alcohol drinkers. INTERNATIONAL JOURNAL OF ALCOHOL AND DRUG RESEARCH 2022; 10:3-14. [PMID: 36875154 PMCID: PMC9979972 DOI: 10.7895/ijadr.399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
OBJECTIVE Adverse childhood experiences, ranging from childhood trauma to neglect or mistreatment, show associations with alcohol dependence in adulthood. Alcohol researchers have not yet clearly demonstrated the potential impact of childhood maltreatment on everyday drinking in alcohol consumers who do not have an alcohol use disorder (AUD). This study examined whether a history of childhood neglect results in differential ratings of stress, affect, and desire to drink, during typical alcohol consumption in moderate to heavy drinkers without an AUD. METHODS The parent study from which these analyses were generated recruited overall healthy, albeit moderate to heavy alcohol users who fell above National Institute on Alcohol Abuse and Alcoholism (NIAAA) classifications for low-risk drinking. Childhood Trauma Questionnaire (CTQ) responses were collected, and real-time surveys were collected in participants' natural environments approximately every three hours between 9 a.m. and 9 p.m. using iPhones equipped with a study-created application probing stress, affect, and desire for alcohol, while participants followed their typical drinking routine (3 days) and during a brief period of imposed abstinence (3 days). RESULTS Thirty-six participants averaging 41 years of age and consuming an average of 17 (±5) drinks per week participated in this study. CTQ responses showed low prevalence of childhood abuse, but moderate to high emotional (M = 17.39, SD = 6.77) and physical neglect (M = 11.11, SD = 3.31) scores. Multilevel modeling revealed significantly higher stress and lower affect ratings among participants reporting higher physical neglect. Alcohol consumption was significantly associated with decreased stress, and increased affect and desire for alcohol. A significant interaction showed that as childhood physical neglect ratings increased, the benefits observed following drinking (of decreased stress, and increased affect and desire for alcohol) were reduced. CONCLUSIONS These results suggest that moderate to heavy healthy daily drinkers with histories of greater childhood physical neglect experience poorer mood and higher stress on a daily basis, with smaller improvement experienced from drinking alcohol. Among moderate to heavy daily drinkers without an AUD, those with greater childhood physical neglect experience poorer mood and higher stress on a daily basis, and have smaller improvements in stress, affect and desire while/following drinking alcohol than those with less childhood physical neglect.
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Affiliation(s)
- Hope Peterson
- Neuroscience Graduate Program, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157 USA
- Laboratory for Complex Brain Networks, Wake Forest Health Sciences, Medical Center Blvd, Winston-Salem, NC, 27157 USA
| | - Paul J. Laurienti
- Laboratory for Complex Brain Networks, Wake Forest Health Sciences, Medical Center Blvd, Winston-Salem, NC, 27157 USA
- Department of Radiology, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC, 27157 USA
| | - W. Jack Rejeski
- Department of Health and Exercise Science, Wake Forest University, 1834 Wake Forest Rd, Winston-Salem, NC, 27106 USA
| | - Jason Fanning
- Department of Health and Exercise Science, Wake Forest University, 1834 Wake Forest Rd, Winston-Salem, NC, 27106 USA
| | - Lise Gauvin
- Department of Social and Preventive Medicine, School of Public Health, Université de Montréal, P.O. Box 6128, Downtown Station, Montréal, H3C 3J5, Canada
- Health Innovation and Evaluation Hub, Centre de recherche du CHUM, 850 rue Saint-Denis, S01-118, Montreal, H2X 0A9, Canada
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Excessive alcohol consumption after exposure to two types of chronic social stress: intermittent episodes vs. continuous exposure in C57BL/6J mice with a history of drinking. Psychopharmacology (Berl) 2022; 239:3287-3296. [PMID: 35974246 DOI: 10.1007/s00213-022-06211-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 08/01/2022] [Indexed: 10/15/2022]
Abstract
RATIONALE The attraction to alcohol can be greatly increased when it is consumed in a social context. While pro-social interactions can potentiate voluntary alcohol drinking under some conditions, aversive social experience (i.e., social stress) can similarly intensify alcohol consumption. OBJECTIVE We sought to determine how exposure to different types of chronic social stress (i.e., intermittent episodes of social defeat or continuous social stress) influences alcohol consumption and the reinforcing effects of alcohol in mice with a history of drinking. METHODS Separate cohorts of male C57BL/6J mice were exposed to either 10 days of continuous or intermittent social defeat stress. In experiment 1, mice were assigned to 20% w/v alcohol consumption in a two-bottle choice protocol both prior to and after exposure to social defeat stress. In a second experiment, mice engaged in an operant response sequence to gain access to alcohol wherein completion of a fixed interval (FI; 5 min) schedule was reinforced with continuous access to alcohol (fixed ratio; FR1) for up to 1.8 g/kg. Alcohol-reinforced responding and subsequent alcohol consumption were assessed daily for 4 weeks prior to the 10-day social stress exposure and for 6-week post-stress. Machine learning was implemented to standardize the analysis of defeat behaviors exhibited by the intruder mouse during confrontation with an attacking resident. RESULTS In mice with a prior history of alcohol drinking, intermittent episodes of social defeat stress produced a significant increase in 20% EtOH consumption in preference over concurrently available water. This increased intake persisted for at least 6 weeks after the final social stress experience. Intermittently stressed mice also accelerated their anticipatory responding during the fixed interval component of the operant response chain that was reinforced by alcohol. Neither unstressed controls nor mice exposed to continuous social stress exhibited significant increases in alcohol consumption and alcohol reinforcement. DISCUSSION Episodic social defeat stress promotes the seeking and consumption of alcohol, extending earlier work to alcohol-experienced mice. We hypothesize that intermittent access to alcohol and intermittent episodes of social stress are additive and share common sensitizing neural mechanisms that engender excessive alcohol consumption.
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Synergistic effect of mild traumatic brain injury and alcohol aggravates neuroinflammation, amyloidogenesis, tau pathology, neurodegeneration, and blood-brain barrier alterations: Impact on psychological stress. Exp Neurol 2022; 358:114222. [PMID: 36089059 DOI: 10.1016/j.expneurol.2022.114222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 08/12/2022] [Accepted: 09/03/2022] [Indexed: 11/24/2022]
Abstract
After a mild traumatic brain injury (mTBI), victims often experience emotional/psychological stress such as heightened irritability, anxiety, apathy, and depression. Severe mental health complications are common in military populations following a combat-acquired TBI and intensified unhealthy alcohol use. The high prevalence of alcohol abuse among TBI victims underscores how alcohol abuse exacerbates emotional/psychological symptoms such as depression and anxiety. The experimental mTBI was induced in vivo by fluid percussion injury (15 psi) in mice and ethanol diet feeding continued for 28 days. We analyzed different biomarkers of the biochemical mechanisms and pathophysiology of neurological damage, and functional outcome of psychological stress by sucrose preference, and light-dark tests. We demonstrated that the synergistic effect of TBI and alcohol leads to psychological stress such as depression and anxiety. The studies showed that oxidative stress, amyloidogenesis, tau pathology, neuroinflammation, and neurodegeneration markers were elevated, and glial activation and blood-brain barrier (BBB) damage were exacerbated during the synergistic effect of TBI and alcohol. Further, we studied the biochemical mechanisms of psychological stress that showed the significant reduction of 5-HT1AR, neuropeptide-Y, and norepinephrine, and an increase in monoamine oxidase-a in the combined effect of TBI and alcohol. This work suggested that the combined TBI and alcohol-induced effect leads to depression and anxiety, via sequential biochemical changes that cause neuroinflammation, amyloidogenesis, tau pathology, neurodegeneration, and BBB alterations. This clinically relevant study will contribute to developing a comprehensive therapeutic approach for patients suffering from TBI and alcohol-mediated neurological damage and psychological stress.
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Baker NL, Neelon B, Ramakrishnan V, Brady KT, Gray KM, Saladin ME, Back SE, Flanagan JC, Guille C, McRae-Clark AL. Sex and drug differences in stress, craving and cortisol response to the trier social stress task. Psychopharmacology (Berl) 2022; 239:2819-2827. [PMID: 35589850 DOI: 10.1007/s00213-022-06163-z] [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: 06/04/2021] [Accepted: 05/10/2022] [Indexed: 11/27/2022]
Abstract
RATIONALE The hypothalamic-pituitary-adrenal (HPA) axis is a critical hormonal system involved in stress response. A number of studies have investigated the HPA axis response of drug-dependent individuals to stressors. Stress-induced vulnerabilities in the HPA axis may differ in response to chronic use of different substances, possibly leading to different target therapies. There has not been a direct comparison of HPA axis and subjective response between individuals with different types of substance use disorders following a laboratory stress intervention. OBJECTIVES The primary goal of the current study was to compare subjective and neuroendocrine response to the Trier Social Stress Task (TSST) across multiple primary types of substance use disorders and investigate differential response between males and females. METHODS Four hundred participants were drawn from seven studies completed at the Medical University of South Carolina between 2011 and 2021. The TSST was utilized across studies and subjective and neuroendocrine responses measured following completion. Generalized linear mixed effects models and area under the response curve analysis were used to compare both substance type and sex differences. RESULTS The study groups involving individuals with cocaine use disorder had blunted stress, craving and cortisol response following the TSST as compared to other substance use groups. Females in the cocaine groups reported higher subjective stress but lower cortisol than males. CONCLUSIONS The study results indicate that there may be differential effects of substances on the HPA axis, with cocaine using individuals exhibiting more blunting of the HPA axis response as compared to users of other substances.
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Affiliation(s)
- Nathaniel L Baker
- Department of Public Health Sciences, Medical University of South Carolina, 135 Cannon Street, Suite 303, Charleston, SC, 29425, USA.
| | - Brian Neelon
- Department of Public Health Sciences, Medical University of South Carolina, 135 Cannon Street, Suite 303, Charleston, SC, 29425, USA
- Ralph H Johnson Veterans Administration Medical Center, Charleston, SC, USA
| | - Viswanathan Ramakrishnan
- Department of Public Health Sciences, Medical University of South Carolina, 135 Cannon Street, Suite 303, Charleston, SC, 29425, USA
| | - Kathleen T Brady
- Ralph H Johnson Veterans Administration Medical Center, Charleston, SC, USA
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Kevin M Gray
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Michael E Saladin
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
- Department of Health Sciences and Research, Medical University of South Carolina, Charleston, SC, USA
| | - Sudie E Back
- Ralph H Johnson Veterans Administration Medical Center, Charleston, SC, USA
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Julianne C Flanagan
- Ralph H Johnson Veterans Administration Medical Center, Charleston, SC, USA
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Constance Guille
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Aimee L McRae-Clark
- Ralph H Johnson Veterans Administration Medical Center, Charleston, SC, USA
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
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Oyeyinka A, Kansal M, O’Sullivan SM, Gualtieri C, Smith ZM, Vonhoff FJ. Corazonin Neurons Contribute to Dimorphic Ethanol Sedation Sensitivity in Drosophila melanogaster. Front Neural Circuits 2022; 16:702901. [PMID: 35814486 PMCID: PMC9256964 DOI: 10.3389/fncir.2022.702901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 05/23/2022] [Indexed: 11/13/2022] Open
Abstract
Exposure to alcohol has multiple effects on nervous system function, and organisms have evolved mechanisms to optimally respond to the presence of ethanol. Sex differences in ethanol-induced behaviors have been observed in several organisms, ranging from humans to invertebrates. However, the molecular mechanisms underlying the dimorphic regulation of ethanol-induced behaviors remain incompletely understood. Here, we observed sex differences in ethanol sedation sensitivity in Drosophila Genome Reference Panel (DGRP) lines of Drosophila melanogaster compared to the absence of dimorphism in standard laboratory wildtype and control lines. However, in dose response experiments, we were able to unmask dimorphic responses for the control mutant line w1118 by lowering the testing ethanol concentration. Notably, feminization of the small population of Corazonin (Crz) neurons in males was sufficient to induce female-like sedation sensitivity. We also tested the role of the transcription factor apontic (apt) based on its known expression in Crz neurons and its regulation of sedation responses. Interestingly, loss of function apt mutations increased sedation times in both males and females as compared to controls. No significant difference between male and female apt mutants was observed, suggesting a possible role of apt in the regulation of dimorphic ethanol-induced responses. Thus, our results shed light into the mechanisms regulating sex-differences in ethanol-induced behaviors at the cellular and molecular level, suggesting that the genetic sex in a small neuronal population plays an important role in modulating sex differences in behavioral responses to ethanol.
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Miczek KA, DiLeo A, Newman EL, Akdilek N, Covington HE. Neurobiological Bases of Alcohol Consumption After Social Stress. Curr Top Behav Neurosci 2022; 54:245-281. [PMID: 34964935 PMCID: PMC9698769 DOI: 10.1007/7854_2021_273] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The urge to seek and consume excessive alcohol is intensified by prior experiences with social stress, and this cascade can be modeled under systematically controlled laboratory conditions in rodents and non-human primates. Adaptive coping with intermittent episodes of social defeat stress often transitions to maladaptive responses to traumatic continuous stress, and alcohol consumption may become part of coping responses. At the circuit level, the neural pathways subserving stress coping intersect with those for alcohol consumption. Increasingly discrete regions and connections within the prefrontal cortex, the ventral and dorsal striatum, thalamic and hypothalamic nuclei, tegmental areas as well as brain stem structures begin to be identified as critical for reacting to and coping with social stress while seeking and consuming alcohol. Several candidate molecules that modulate signals within these neural connections have been targeted in order to reduce excessive drinking and relapse. In spite of some early clinical failures, neuropeptides such as CRF, opioids, or oxytocin continue to be examined for their role in attenuating stress-escalated drinking. Recent work has focused on neural sites of action for peptides and steroids, most likely in neuroinflammatory processes as a result of interactive effects of episodic social stress and excessive alcohol seeking and drinking.
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Affiliation(s)
- Klaus A. Miczek
- Department of Psychology, Tufts University, Medford, MA, USA,Department of Neuroscience, Tufts University, Boston, MA, USA
| | - Alyssa DiLeo
- Department of Neuroscience, Tufts University, Boston, MA, USA
| | - Emily L. Newman
- Department of Psychiatry, Harvard Medical School, Belmont, MA, USA
| | - Naz Akdilek
- Department of Psychology, Tufts University, Medford, MA, USA
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Doremus-Fitzwater TL, Deak T. Adolescent neuroimmune function and its interaction with alcohol. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2021; 161:167-208. [PMID: 34801169 DOI: 10.1016/bs.irn.2021.08.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Adolescence is an evolutionarily conserved developmental period associated with behavioral change, including increased risk-taking and alcohol use. Experimentation with alcohol typically begins in adolescence and transitions to binge-like patterns of consumption. Alcohol exposure during adolescence can alter normative changes in brain structure and function. Understanding mechanisms by which ethanol impacts neurodevelopmental processes is important for preventing and ameliorating the deleterious consequences of adolescent alcohol abuse. This review focuses on the neuroimmune system as a key contributor to ethanol-induced changes in adolescent brain and behavior. After brief review of neuroimmune system development, acute and chronic effects of ethanol on adolescent neuroimmune functioning are addressed. Comparisons between stress/immunological challenges and ethanol on adolescent neuroimmunity are reviewed, as cross-sensitization is relevant during adolescence. The mechanisms by which ethanol alters neuroimmune functioning are then discussed, as they may portend development of neuropathological consequences and thus increase vulnerability to subsequent challenges and potentiate addictive behaviors.
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Affiliation(s)
- T L Doremus-Fitzwater
- Department of Psychology, Ithaca College, Ithaca, NY, United States; Developmental Exposure Alcohol Research Center (DEARC), Binghamton, NY, United States.
| | - T Deak
- Developmental Exposure Alcohol Research Center (DEARC), Binghamton, NY, United States; Binghamton University-SUNY, Binghamton, NY, United States
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Boness CL, Watts AL, Moeller KN, Sher KJ. The Etiologic, Theory-Based, Ontogenetic Hierarchical Framework of Alcohol Use Disorder: A Translational Systematic Review of Reviews. Psychol Bull 2021; 147:1075-1123. [PMID: 35295672 PMCID: PMC8923643 DOI: 10.1037/bul0000333] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Modern nosologies (e.g., ICD-11, DSM-5) for alcohol use disorder (AUD) and dependence prioritize reliability and clinical presentation over etiology, resulting in a diagnosis that is not always strongly grounded in basic theory and research. Within these nosologies, DSM-5 AUD is treated as a discrete, largely categorical, but graded, phenomenon, which results in additional challenges (e.g., significant phenotypic heterogeneity). Efforts to increase the compatibility between AUD diagnosis and modern conceptualizations of alcohol dependence, which describe it as dimensional and partially overlapping with other psychopathology (e.g., other substance use disorders) will inspire a stronger scientific framework and strengthen AUD's validity. We conducted a systematic review of 144 reviews to integrate addiction constructs and theories into a comprehensive framework with the aim of identifying fundamental mechanisms implicated in AUD. The product of this effort was the Etiologic, Theory-Based, Ontogenetic Hierarchical Framework (ETOH Framework) of AUD mechanisms, which outlines superdomains of cognitive control, reward, as well as negative valence and emotionality, each of which subsume narrower, hierarchically-organized components. We also outline opponent processes and self-awareness as key moderators of AUD mechanisms. In contrast with other frameworks, we recommend an increased conceptual role for negative valence and compulsion in AUD. The ETOH framework serves as a critical step towards conceptualizations of AUD as dimensional and heterogeneous. It has the potential to improve AUD assessment and aid in the development of evidence-based diagnostic measures that focus on key mechanisms in AUD, consequently facilitating treatment matching.
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Affiliation(s)
| | - Ashley L Watts
- Department of Psychological Science, University of Missouri
| | | | - Kenneth J Sher
- Department of Psychological Science, University of Missouri
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Cummings JR, Ackerman JM, Wolfson JA, Gearhardt AN. COVID-19 stress and eating and drinking behaviors in the United States during the early stages of the pandemic. Appetite 2021; 162:105163. [PMID: 33587985 DOI: 10.1016/j.appet.2021.105163] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 10/14/2020] [Accepted: 02/06/2021] [Indexed: 12/12/2022]
Abstract
The coronavirus SARS-CoV-2 (COVID-19) pandemic has created widespread stress. Since many people cope with stress by eating, the current study investigated whether eating behaviors shifted among U.S. adults after the emergence of the pandemic. Data from national, crowdsourced surveys conducted on March 31st, 2020 and February 13th, 2019 were compared. Average levels of eating to cope and food addiction symptoms did not appear to shift during the early stages of the pandemic; however, U.S. adults ate about 14% more added sugars. Moreover, greater stress in response to the pandemic was associated with greater eating to cope, added sugars intake, food addiction symptoms, drinking to cope, and drinking frequency. These associations differed by the presence of state-level stay-at-home orders, perceived vulnerability to disease, age, U.S. political party affiliation, and gender. Although eating behaviors did not appear to majorly shift during the early stages of the pandemic, stress from the pandemic may intensify some maladaptive coping tendencies among U.S. adults.
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Affiliation(s)
- Jenna R Cummings
- Department of Psychology, University of Michigan, Ann Arbor, USA.
| | | | - Julia A Wolfson
- Department of Health Management and Policy, University of Michigan, Ann Arbor, USA; Department of Nutritional Sciences, University of Michigan, Ann Arbor, USA
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Bejda G, Kułak-Bejda A, Waszkiewicz N, Krajewska-Kułak E. Type D Personality, Stress Level, Life Satisfaction, and Alcohol Dependence in Older Men. Front Psychiatry 2021; 12:712508. [PMID: 34707518 PMCID: PMC8542794 DOI: 10.3389/fpsyt.2021.712508] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 09/06/2021] [Indexed: 11/13/2022] Open
Abstract
Alcohol consumption among older adults is becoming an increasing public health problem due to the rapidly growing elderly population. There is a theory that Type D personality is positively correlated with alcohol dependence. The study aimed to assess the style of coping with stress, emotions and anxiety in elder men addicted to alcohol and the relationship between the above. The study included 170 men aged 60 years and older (mean age - 63 ± 3.1 years) addicted to alcohol staying in the Department of Alcohol Addiction Therapy for Men. They were tested with the questionnaire sheet and the following scales: Perceived Family Wealth (PFW), Family Affluence Scale (FAS), Cantril's Ladder of Life Scale, Satisfaction with Life Scale, Type D Personality Scale-14 (DS14), and the 10-item Perceived Stress Scale (PSS-10). The respondents' wealth on a scale of 1-5 points was assessed on avg. 3.1 ± 0.2. The above was confirmed by the results of the FAS scale study, where the respondents obtained an average of 3.9 ± 1.9 (min. 1, max. 8), which proves their average level of affluence. The evaluation of the satisfaction with life using Cantril's Ladder showed that the respondents were also satisfied with life on average (on average 5.5 ± 1.9). The assessment of life satisfaction using the Satisfaction with Life Scale (SWLS) scale allowed for the conclusion that the respondents were very dissatisfied with their lives (mean 17.2 ± 4.9). The evaluation of the measurement of perceived stress (PSS-10 scale) showed that the respondents obtained an average of 23.5 ± 3.7, and on the sten scale, a mean of 7.7 ± 0.98, which proves a high level of perceived stress. The study using the DS14 scale showed that the respondents were in the negative emotionality (NE) subscale - 17.4 ± 4.5 points, and in the HS scale - 16.2 ± 3.2, which proves that they can be classified as a Type D personality. The participants were very dissatisfied with their lives, with a high perceived stress and Type D personality.
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Affiliation(s)
- Grzegorz Bejda
- The School of Medical Science in Białystok, Białystok, Poland
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Kumawat D, Ravi AK, Sahay P, Alam T, Desai A, Kumar A. Systemic evaluation of patients with central serous chorioretinopathy: A case-control study. Eur J Ophthalmol 2020; 31:3223-3230. [PMID: 33238760 DOI: 10.1177/1120672120975698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To investigate the systemic associations of central serous chorioretinopathy (CSCR) with help of clinical and biochemical investigations. DESIGN Case-control study. PARTICIPANTS Eighty seven CSCR patients (case) and 82 Asian-Indian patients with primary non-traumatic rhegmatogenous retinal detachment (control) were recruited between July 2017 and December 2018 at a tertiary eye-care center in North India. METHODS The patients underwent ophthalmological examination and systemic evaluation based on history and biochemical investigations. Logistic regression was performed to identify the associations of CSCR. RESULTS The age was similar between cases and controls (36.9 ± 7.8 years vs 35.7 ± 10.8 years, p = 0.38). On univariate analysis, the significant factors with higher odds of CSCR were alcohol use (odds ratio, OR: 3.4; 95% confidence interval: 1.36-8.53), sleep disturbance (OR: 5.44; 1.76-16.8), gastroesophageal reflux (OR: 9.34; 1.15-75.50), psychological disorder (OR: 5.78; 1.24-26.97), tuberculosis history (OR: 8.2; 1.0-67.10), serum albumin: globulin ratio (AGR) > 2 (OR: 10.43; 2.33-46.57), and serum hemoglobin (per unit increase; OR: 1.35; 1.14-1.61). Although the mean blood pressure was significantly higher in cases, the distribution among various hypertension categories was not significantly different. Exogenous steroid use and morning 8 am serum cortisol levels were not significantly different between the groups. On multivariable analysis, alcohol use (OR: 4.72; 1.33-16.76), sleep disturbances (OR: 5.04; 1.36-18.70), dysthyroid state (OR: 3.02; 1.04-8.74), serum AGR > 2 (OR: 14.28; 2.33-87.28), and serum hemoglobin (per unit increase; OR: 1.43; 1.13-1.81) were significant independent associations. CONCLUSION Other than the previously described associations of CSCR like alcohol use and sleep disturbances, this study reports possible association with deranged serum protein and thyroid hormone profile. Further large-scale prospective studies need to validate these results.
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Affiliation(s)
- Devesh Kumawat
- Department of Ophthalmology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Alok Kumar Ravi
- Department of Ocular Biochemistry, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Pranita Sahay
- Department of Ophthalmology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Tanveer Alam
- Department of Ophthalmology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Arjun Desai
- Department of Ophthalmology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Atul Kumar
- Department of Ophthalmology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
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Chronic alcohol disrupts hypothalamic responses to stress by modifying CRF and NMDA receptor function. Neuropharmacology 2020; 167:107991. [PMID: 32059962 DOI: 10.1016/j.neuropharm.2020.107991] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/07/2020] [Accepted: 02/05/2020] [Indexed: 01/23/2023]
Abstract
The chronic inability of alcoholics to effectively cope with relapse-inducing stressors has been linked to dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis and corticotropin-releasing factor (CRF) signaling. However, the cellular mechanisms responsible for this dysregulation are yet to be identified. After exposure of male Sprague Dawley rats to chronic intermittent ethanol (CIE; 5-6 g/kg orally for 35 doses over 50 days) or water, followed by 40-60 days of protracted withdrawal, we investigated CIE effects on glutamatergic synaptic transmission, stress-induced plasticity, CRF- and ethanol-induced NMDAR inhibition using electrophysiological recordings in parvocellular neurosecretory cells (PNCs) of the paraventricular nucleus. We also assessed CIE effects on hypothalamic mRNA expression of CRF-related genes using real-time polymerase chain reaction, and on HPA axis function by measuring stress-induced increases in plasma adrenocorticotropic hormone, corticosterone, and self-grooming. In control rats, ethanol-mediated inhibition of NMDARs was prevented by CRF1 receptor (CRFR1) blockade with antalarmin, while CRF/CRFR1-mediated NMDAR blockade was prevented by intracellularly-applied inhibitor of phosphatases PP1/PP2A, okadaic acid, but not the selective striatal-enriched tyrosine protein phosphatase inhibitor, TC-2153. CIE exposure increased GluN2B subunit-dependent NMDAR function of PNCs. This was associated with the loss of both ethanol- and CRF-mediated NMDAR inhibition, and loss of stress-induced short-term potentiation of glutamatergic synaptic inputs, which could be reversed by intracellular blockade of NMDARs with MK801. CIE exposure also blunted the hormonal and self-grooming behavioral responses to repeated restraint stress. These findings suggest a cellular mechanism whereby chronic alcohol dysregulates the hormonal and behavioral responses to repetitive stressors by increasing NMDAR function and decreasing CRFR1 function.
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Kumar R, Kumar KJ, Benegal V, Roopesh BN, Ravi GS. Effectiveness of an Integrated Intervention Program for Alcoholism (IIPA) for enhancing self-regulation: Preliminary evidence. Asian J Psychiatr 2019; 43:37-44. [PMID: 31078094 DOI: 10.1016/j.ajp.2019.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 04/07/2019] [Accepted: 05/02/2019] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Alcoholism could be a core problem of self-regulatory failure. Several neurocognitive theories have hypothesized hypo-functioning or dysfunction of reflective (executive) system and heightened functioning of reactive (impulsive) system in self-regulatory failure implicated in drug addiction. Similarly, stress and affect dysregulation may breakdown self-regulation. The present study aimed to develop an Integrated Intervention Program for Alcoholism (IIPA) to enhance self-regulation and to test its effectiveness in the treatment of alcoholism. METHOD Individuals with early onset alcoholism (n = 50) were recruited after getting written informed consent. The study used randomized case control design. The participants were matched on age (+/-1 year) and education (+/-1 year). The TAU group received usual treatment for alcoholism which included pharmacotherapy, 6 sessions/week yoga and 3 sessions/week group therapy on relapse prevention. The intervention group received IIPA for 18 days along with usual treatment (except yoga sessions). The IIPA included several cognitive remediation tasks and mind-body exercise (Qigong and Tai Chi Chuan). Both groups were assessed on executive function tests and affect regulation scale at pre and post-intervention. The subjects were also followed up for 6 months to compare the abstinence between groups. RESULTS Both groups were comparable at baseline. At post-intervention, the IIPA group showed a significant improvement compared to the TAU group on executive functioning and affect regulation. Follow-up results showed lower relapses in six months in the IIPA group. CONCLUSION Preliminary evidence showed that IIPA is effective in facilitating self-regulation. Further study may examine its utility and feasibility in other clinical conditions.
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Affiliation(s)
- Rajesh Kumar
- Department of Clinical Psychology, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru 560029, India.
| | - Keshav J Kumar
- Department of Clinical Psychology, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru 560029, India.
| | - Vivek Benegal
- Department of Psychiatry, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru 560029, India.
| | - Bangalore N Roopesh
- Department of Clinical Psychology, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru 560029, India.
| | - Girikematha S Ravi
- Department of Biostatistics, National Institute of Mental Health and Neurosciences (NIMHANS), Bengaluru 560029, India.
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Jeong JE, Joo SH, Hahn C, Kim DJ, Kim TS. Gender-Specific Association between Alcohol Consumption and Stress Perception, Depressed Mood, and Suicidal Ideation: The 2010-2015 KNHANES. Psychiatry Investig 2019; 16:386-396. [PMID: 31132843 PMCID: PMC6539269 DOI: 10.30773/pi.2019.02.28] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 02/18/2019] [Accepted: 02/28/2019] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE Alcohol drinking can cause various psychiatric and medical diseases. Although women generally consume less alcohol than men, they may be at a greater risk for alcohol-related psychological distress. The aim of the current study is to evaluate whether the association between alcohol consumption and psychological distress, including stress, depressed mood, and suicidal ideation and the risks of psychological distress differ based on gender. METHODS The cross-sectional study included 31,657 participants (17,915 women and 13,742 men) from the 2010-2013 and 2015 Korea National Health and Nutrition Examination Survey. Alcohol drinking and Alcohol Use Disorders Identification Test (AUDIT) levels were assessed for evaluating the amount of alcohol intake and alcohol-related problems. Self-perception of stress, depressed mood, and suicidal ideation were assessed for evaluating psychological distress. Odds ratio and 95% confidence intervals for psychological distress were calculated using multiple logistic regression models. RESULTS The risks of psychological distress were not significantly associated with drinking level in both sexes. However, the risks of psychological distress were associated with an increase in AUDIT levels, and there were gender differences in the psychological consequences of alcohol-related problems. The association was more drastic in women, and women showed a significant association even though the severity of drinking problem was low with the exception of stress perception. CONCLUSION The risks of psychological distress were associated with the severity of alcohol-related problems and women were more likely to be susceptible. Therefore, it is recommended that women even at low-risk for problematic drinking should be screened for psychological distress.
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Affiliation(s)
- Jo-Eun Jeong
- Department of Psychiatry, Daejeon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Republic of Korea
| | - Soo-Hyun Joo
- Department of Psychiatry, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Changtae Hahn
- Department of Psychiatry, Daejeon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Republic of Korea
| | - Dai-Jin Kim
- Department of Psychiatry, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Snodgrass JG, Dengah Ii HJF, Lacy MG, Else RJ, Polzer ER, Arevalo JMG, Cole SW. Social genomics of healthy and disordered internet gaming. Am J Hum Biol 2018; 30:e23146. [PMID: 29923288 DOI: 10.1002/ajhb.23146] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 04/25/2018] [Accepted: 05/24/2018] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES To combine social genomics with cultural approaches to expand understandings of the somatic health dynamics of online gaming, including in the controversial nosological construct of internet gaming disorder (IGD). METHODS In blood samples from 56 U.S. gamers, we examined expression of the conserved transcriptional response to adversity (CTRA), a leukocyte gene expression profile activated by chronic stress. We compared positively engaged and problem gamers, as identified by an ethnographically developed measure, the Positive and Negative Gaming Experiences Scale (PNGE-42), and also by a clinically derived IGD scale (IGDS-SF9). RESULTS CTRA profiles showed a clear relationship with PNGE-42, with a substantial linkage to offline social support, but were not meaningfully associated with disordered play as measured by IGDS-SF9. CONCLUSIONS Our study advances understanding of the psychobiology of play, demonstrating via novel transcriptomic methods the association of negatively experienced internet play with biological measures of chronic threat, uncertainty, and distress. Our findings are consistent with the view that problematic patterns of online gaming are a proxy for broader patterns of biopsychosocial stress and distress such as loneliness, rather than a psychiatric disorder sui generis, which might exist apart from gamers' other life problems. By confirming the biological correlates of certain patterns of internet gaming, culturally-sensitive genomics approaches such as this can inform both evolutionary theorizing regarding the nature of play, as well as current psychiatric debates about the appropriateness of modeling distressful gaming on substance addiction and problem gambling.
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Affiliation(s)
- Jeffrey G Snodgrass
- Department of Anthropology, Colorado State University, Fort Collins, Colorado, 80523-1787
| | - H J François Dengah Ii
- Department of Sociology, Social Work, and Anthropology, Utah State University, Logan, Utah, 84322-0230
| | - Michael G Lacy
- Department of Sociology, Colorado State University, Fort Collins, Colorado, 80523-1784
| | - Robert J Else
- Department of Anthropology, University of Alabama, Tuscaloosa, Alabama, 35487-0210
| | - Evan R Polzer
- Department of Anthropology, Colorado State University, Fort Collins, Colorado, 80523-1787
| | - Jesusa M G Arevalo
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles School of Medicine, Los Angeles, California, 90095
| | - Steven W Cole
- Division of Hematology-Oncology, Department of Medicine, University of California, Los Angeles School of Medicine, Los Angeles, California, 90095.,Department of Psychiatry & Biobehavioral Sciences, University of California, Los Angeles School of Medicine, Los Angeles, California, 90095
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Mereish EH, Kuerbis A, Morgenstern J. A daily diary study of stressful and positive events, alcohol use, and addiction severity among heavy drinking sexual minority men. Drug Alcohol Depend 2018; 187:149-154. [PMID: 29665493 PMCID: PMC6063512 DOI: 10.1016/j.drugalcdep.2018.03.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 03/01/2018] [Accepted: 03/02/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND The purpose of this study is to examine the conditions under which daily stressful and positive events are associated with alcohol use among heavy drinking sexual minority men (SMM). Specifically, we examined the moderating effects of two indicators of alcohol addiction severity (i.e., alcohol dependence severity and negative drinking consequences) on the associations between daily stressful events and alcohol use and between daily positive events and alcohol use among heavy drinking SMM. PROCEDURES Secondary data analyses were performed using data from a randomized controlled trial of heavy drinking and treatment seeking SMM who were assigned male at birth (N = 200). Participants responded to a daily survey delivered via interactive voice recording (IVR). The first seven days of the IVR were analyzed for this study. RESULTS While accounting for treatment condition, weekday/weekend, and baseline drinking, stressful and positive events were both associated with increased daily drinking; however, indicators of alcohol addiction severity moderated these associations. For heavy drinkers with high alcohol addiction severity, daily stressful events were not associated with alcohol use, and daily positive events were associated with increased alcohol use. In contrast, for heavy drinkers with low alcohol addiction severity, daily stressful events were associated with less drinking, and daily positive events were not associated with alcohol use. CONCLUSIONS The findings of this study indicate that alcohol addiction severity plays a key role in explaining when daily stressful or positive events are associated with daily alcohol use among heavy drinking SMM.
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Affiliation(s)
- Ethan H. Mereish
- Department of Health Studies, American University, Gray Hall 119, 4400 Massachusetts Ave, NW, Washington, DC 20015, USA
| | - Alexis Kuerbis
- Silberman School of Social Work, Hunter College at City University of New York, 2180 Third Avenue, New York, NY 10035, USA.
| | - Jon Morgenstern
- Northwell Health, 1010 Northern Blvd. Suite 311, Great Neck, NY 11021, USA.
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Doremus-Fitzwater TL, Paniccia JE, Gano A, Vore A, Deak T. Differential effects of acute versus chronic stress on ethanol sensitivity: Evidence for interactions on both behavioral and neuroimmune outcomes. Brain Behav Immun 2018; 70:141-156. [PMID: 29458194 PMCID: PMC5953812 DOI: 10.1016/j.bbi.2018.02.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 02/05/2018] [Accepted: 02/15/2018] [Indexed: 02/07/2023] Open
Abstract
Acute alcohol intoxication induces significant alterations in brain cytokines. Since stress challenges also profoundly impact central cytokine expression, these experiments examined the influence of acute and chronic stress on ethanol-induced brain cytokine responses. In Experiment 1, adult male rats were exposed to acute footshock. After a post-stress recovery interval of 0, 2, 4, or 24 h, rats were administered ethanol (4 g/kg; intragastric), with trunk blood and brains collected 3 h later. In non-stressed controls, acute ethanol increased expression of Il-6 and IκBα in the hippocampus. In contrast, rats exposed to footshock 24 h prior to ethanol demonstrated potentiation of hippocampal Il-6 and IκBα expression relative to ethanol-exposed non-stressed controls. Experiment 2 subsequently examined the effects of chronic stress on ethanol-related cytokine expression. Following a novel chronic escalating stress procedure, rats were intubated with ethanol. As expected, acute ethanol increased Il-6 expression in all structures examined, yet the Il-6 response was attenuated exclusively in the hippocampus in chronically stressed rats. Later experiments determined that neither acute nor chronic stress affected ethanol pharmacokinetics. When ethanol hypnosis was examined, however, rats exposed to chronic stress awoke at significantly lower blood ethanol levels compared to acutely stressed rats, despite similar durations of ethanol-induced sedation. These data indicate that chronic stress may increase sensitivity to ethanol hypnosis. Together, these experiments demonstrate an intriguing interaction between recent stress history and ethanol-induced increases in hippocampal Il-6, and may provide insight into novel pharmacotherapeutic targets for prevention and treatment of alcohol-related health outcomes based on stress susceptibility.
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Affiliation(s)
| | - Jacqueline E. Paniccia
- Developmental Exposure Alcohol Research Center (DEARC), Behavioral Neuroscience Program, Department of Psychology, Binghamton University, Binghamton NY 13902-6000
| | - Anny Gano
- Developmental Exposure Alcohol Research Center (DEARC), Behavioral Neuroscience Program, Department of Psychology, Binghamton University, Binghamton NY 13902-6000
| | - Andrew Vore
- Developmental Exposure Alcohol Research Center (DEARC), Behavioral Neuroscience Program, Department of Psychology, Binghamton University, Binghamton NY 13902-6000
| | - Terrence Deak
- Developmental Exposure Alcohol Research Center (DEARC), Behavioral Neuroscience Program, Department of Psychology, Binghamton University, Binghamton, NY 13902-6000, United States.
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Roswall N, Christensen JS, Bidstrup PE, Raaschou-Nielsen O, Jensen SS, Tjønneland A, Sørensen M. Associations between residential traffic noise exposure and smoking habits and alcohol consumption-A population-based study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 236:983-991. [PMID: 29122366 DOI: 10.1016/j.envpol.2017.10.093] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 10/23/2017] [Accepted: 10/23/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Traffic noise stresses and disturbs sleep. It has been associated with various diseases, and has recently also been associated with lifestyle. Hence, the association between traffic noise and disease could partly operate via a pathway of lifestyle habits, including smoking and alcohol intake. OBJECTIVES We investigated associations between modelled residential traffic noise and smoking habits and alcohol consumption. METHODS In a cohort of 57,053 participants, we performed cross-sectional analyses using data from a baseline questionnaire (1993-97), and longitudinal analyses of change between baseline and follow-up (2000-02). Smoking status (never, former, current) and intensity (tobacco, g/day) and alcohol consumption (g/day) was self-reported at baseline and follow-up. Address history from 1987-2002 for all participants were found in national registries, and road traffic and railway noise was modelled 1 and 5 years before enrolment, and from baseline to follow-up. Analyses were performed using logistic and linear regression, and adjusted for demographics, socioeconomic variables, leisure-time sports, and noise from the opposite source (road/railway). RESULTS Road traffic noise exposure 5 years before baseline was positively associated with alcohol consumption (adjusted difference per 10 dB: 1.38 g/day, 95% confidence interval (CI): 1.10-1.65), smoking intensity (adjusted difference per 10 dB: 0.40 g/day, 95% CI: 0.19-0.61), and odds for being a current vs. never/former smoker at baseline (odds ratio (OR): 1.14; 95% CI: 1.10-1.17). In longitudinal analyses, we found no association between road traffic noise and change in smoking and alcohol habits. Railway noise was not associated with smoking habits and alcohol consumption, neither in cross-sectional nor in longitudinal analyses. CONCLUSION The study suggests that long-term exposure to residential road traffic is associated with smoking habits and alcohol consumption, albeit only in cross-sectional, but not in longitudinal analyses.
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Affiliation(s)
- Nina Roswall
- Danish Cancer Society Research Center, Strandboulevarden 49, DK-2100 Copenhagen, Denmark.
| | | | | | - Ole Raaschou-Nielsen
- Danish Cancer Society Research Center, Strandboulevarden 49, DK-2100 Copenhagen, Denmark; Department of Environmental Science, Aarhus University, Frederiksborgvej 399, Postboks 358, 4000 Roskilde, Denmark
| | - Steen Solvang Jensen
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, Postboks 358, 4000 Roskilde, Denmark
| | - Anne Tjønneland
- Danish Cancer Society Research Center, Strandboulevarden 49, DK-2100 Copenhagen, Denmark
| | - Mette Sørensen
- Danish Cancer Society Research Center, Strandboulevarden 49, DK-2100 Copenhagen, Denmark
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Chamik T, Viswanathan B, Gedeon J, Bovet P. Associations between psychological stress and smoking, drinking, obesity, and high blood pressure in an upper middle-income country in the African region. Stress Health 2018; 34:93-101. [PMID: 28586134 DOI: 10.1002/smi.2766] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 02/17/2017] [Accepted: 05/14/2017] [Indexed: 11/06/2022]
Abstract
The direction and magnitude of the associations between cardiovascular risk factors (CVRFs) and psychological stress continue to be debated, and no data are available from surveys in the African region. In this study, we examine the associations between CVRFs and psychological stress in the Seychelles, a rapidly developing small island state in the African region. A survey was conducted in 1,240 adults aged 25-64 years representative of the Seychelles. Participants were asked to rank psychological stress that they had experienced during the past 12 months in four domains: work, social life, financial situation, and environment around home. CVRFs (high blood pressure, tobacco use, alcohol drinking, and obesity) were assessed using standard procedures. Psychological stress was associated with age, sex, and socioeconomic status. Overall, there were only few consistent associations between psychological stress and CVRFs, adjusting for age, sex, and socioeconomic status. Social stress was associated with smoking, drinking, and obesity, and there were marginal associations between stress at work and drinking, and between financial stress, and smoking and drinking. Psychological stress was not associated with high blood pressure. These findings suggest that psychological stress should be considered in cardiovascular disease prevention and control strategies.
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Affiliation(s)
- Tanja Chamik
- Institute of Social and Preventive Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | | | - Jude Gedeon
- Ministry of Health, Victoria, Republic of Seychelles
| | - Pascal Bovet
- Institute of Social and Preventive Medicine, University Hospital of Lausanne, Lausanne, Switzerland
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Altered Ethanol Consumption in Osteocalcin Null Mutant Mice. Cell Mol Neurobiol 2017; 38:261-271. [PMID: 28852891 DOI: 10.1007/s10571-017-0539-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 08/18/2017] [Indexed: 12/13/2022]
Abstract
Osteocalcin (OC) is an abundant extracellular calcium-binding protein synthesized by osteoblasts. Although most OC is bound to hydroxyapatite mineral during bone formation, a consistent amount is released directly to circulation. Plasma OC (pOC) levels are highly sensitive to stressful stimuli that alter stress-responsive hormones, such as glucocorticoids (cortisol or corticosterone) and the catecholamines norepinephrine and epinephrine. To gain a better understanding of the apparent relationship of OC to the effects of ethanol (EtOH) and the stress responses, we compared mice that have OC (WT [OC+/+] and HET [OC+/-]) with OC null mutants (KO [OC-/-]), which have no OC in either plasma or in bone. One experiment included chronic unpredictable stress, a second was conducted in the absence of any known stressors other than EtOH, while a third imposed a more severe acute immobilization stress in addition to EtOH consumption. The data obtained confirmed significant differences in EtOH consumption in mice that previously experienced various stressful stimuli. We also determined that adrenal tyrosine-hydroxylase expression was inversely proportional to EtOH consumption and tended to be lower in KO than in WT. Data suggest that OC possesses the ability to modulate the adrenal gene expression of the catecholamine synthetic pathway. This modulation may be responsible for differences in EtOH consumption under stress.
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Becker HC. Influence of stress associated with chronic alcohol exposure on drinking. Neuropharmacology 2017; 122:115-126. [PMID: 28431971 PMCID: PMC5497303 DOI: 10.1016/j.neuropharm.2017.04.028] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 04/12/2017] [Accepted: 04/17/2017] [Indexed: 12/24/2022]
Abstract
Stress is commonly regarded as an important trigger for relapse and a significant factor that promotes increased motivation to drink in some individuals. However, the relationship between stress and alcohol is complex, likely changing in form during the transition from early moderated alcohol use to more heavy uncontrolled alcohol intake. A growing body of evidence indicates that prolonged excessive alcohol consumption serves as a potent stressor, producing persistent dysregulation of brain reward and stress systems beyond normal homeostatic limits. This progressive dysfunctional (allostatic) state is characterized by changes in neuroendocrine and brain stress pathways that underlie expression of withdrawal symptoms that reflect a negative affective state (dysphoria, anxiety), as well as increased motivation to self-administer alcohol. This review highlights literature supportive of this theoretical framework for alcohol addiction. In particular, evidence for stress-related neural, physiological, and behavioral changes associated with chronic alcohol exposure and withdrawal experience is presented. Additionally, this review focuses on the effects of chronic alcohol-induced changes in several pro-stress neuropeptides (corticotropin-releasing factor, dynorphin) and anti-stress neuropeptide systems (nocicepton, neuropeptide Y, oxytocin) in contributing to the stress, negative emotional, and motivational consequences of chronic alcohol exposure. Studies involving use of animal models have significantly increased our understanding of the dynamic stress-related physiological mechanisms and psychological underpinnings of alcohol addiction. This, in turn, is crucial for developing new and more effective therapeutics for treating excessive, harmful drinking, particularly stress-enhanced alcohol consumption. This article is part of the Special Issue entitled "Alcoholism".
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Affiliation(s)
- Howard C Becker
- Charleston Alcohol Research Center, Department of Psychiatry and Behavioral Sciences, Department of Neuroscience, Medical University of South Carolina, RHJ Department of Veterans Affairs, Charleston, SC 29464, USA.
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Corticosteroid modulation and testosterone changes during alcohol intoxication affects voluntary alcohol drinking. Pharmacol Biochem Behav 2017; 157:9-15. [DOI: 10.1016/j.pbb.2017.04.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 04/19/2017] [Accepted: 04/21/2017] [Indexed: 11/20/2022]
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Alcohol Prevention and Evaluation in the Era of Evidence Based Practice – the Need for a Systematic Approach to Evaluation. NORDIC STUDIES ON ALCOHOL AND DRUGS 2017. [DOI: 10.2478/v10199-011-0022-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIMS This article focuses on the shortcomings of experimental outcome evaluations. MATERIAL The study uses two studies of the alcohol prevention program Prime for Life (PFL) to illustrate problems associated with a ‘one dimensional’ goal focus and how implementation may affect the efficiency of an intervention. Results As evidence based practice often fails to acknowledge the importance of context and implementation quality in its quest to find ‘what works’, it is argued in the article that a wider perspective on efficiency is needed in evaluations of alcohol prevention. CONSLUSIONS To be able to find out what works and during what circumstances, evaluators need to look for a wider set of traits that constitute effective interventions.
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Adrenocortical sensitivity, moderated by ongoing stress, predicts drinking intensity in alcohol-dependent men. Psychoneuroendocrinology 2017; 76:67-76. [PMID: 27888772 PMCID: PMC5272781 DOI: 10.1016/j.psyneuen.2016.10.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 09/26/2016] [Accepted: 10/15/2016] [Indexed: 11/23/2022]
Abstract
Allostatic load from both environmental stressors and persistent glucocorticoid secretion has been associated with disease severity in alcohol dependence. Heightened relapse risk and/or drinking severity, in particular, may be a reaction to alcohol- and withdrawal-induced changes in physiological stress response systems coupled with ongoing life stress, although their shared contributions upon drinking severity have not been assessed. To investigate the combined contribution of hypothalamic-pituitary-adrenal (HPA) reactivity and environmental stressors (e.g., ongoing life stress) to relapse severity in alcohol-dependent men following treatment, plasma adrenocorticotropin (ACTH) and cortisol were obtained in 4-6 weeks abstinent alcohol-dependent men (n=41) following a psychosocial stressor [the Trier Social Stress Test (TSST)] and two pharmacological provocations [ovine corticotropin releasing factor (oCRH) and cosyntropin]. Following treatment discharge, drinking outcomes (primary outcome: drinks per drinking day (DDD); secondary outcomes: total drinks and drinking days) were assessed weekly and ongoing life stress was assessed biweekly for 24 weeks following treatment discharge. Generalized estimating equation models of drinking severity were fit with basal and stimulated ACTH and cortisol concentrations as predictors and ongoing life stress as the moderator. Greater levels of life stress were independently associated with greater drinking intensity (DDD and total drinks) but not frequency (days drinking). Higher basal cortisol:ACTH or provoked cortisol:ACTH ratios were strongly associated with greater post-treatment DDD in individuals who experienced higher levels of ongoing stress. In conclusion, ongoing life stress is associated with post-treatment drinking intensity in alcohol dependent men; stress also strengthens the relationship between adrenocortical sensitivity and post-treatment drinking. Physiological measures of allostatic load and environmental stressors conjointly increase relapse intensity.
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Analyses of differentially expressed genes after exposure to acute stress, acute ethanol, or a combination of both in mice. Alcohol 2017; 58:139-151. [PMID: 28027852 DOI: 10.1016/j.alcohol.2016.08.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 08/10/2016] [Accepted: 08/10/2016] [Indexed: 12/31/2022]
Abstract
Alcohol abuse is a complex disorder, which is confounded by other factors, including stress. In the present study, we examined gene expression in the hippocampus of BXD recombinant inbred mice after exposure to ethanol (NOE), stress (RSS), and the combination of both (RSE). Mice were given an intraperitoneal (i.p.) injection of 1.8 g/kg ethanol or saline, and subsets of both groups were exposed to acute restraint stress for 15 min or controls. Gene expression in the hippocampus was examined using microarray analysis. Genes that were significantly (p < 0.05, q < 0.1) differentially expressed were further evaluated. Bioinformatic analyses were predominantly performed using tools available at GeneNetwork.org, and included gene ontology, presence of cis-regulation or polymorphisms, phenotype correlations, and principal component analyses. Comparisons of differential gene expression between groups showed little overlap. Gene Ontology demonstrated distinct biological processes in each group with the combined exposure (RSE) being unique from either the ethanol (NOE) or stress (RSS) group, suggesting that the interaction between these variables is mediated through diverse molecular pathways. This supports the hypothesis that exposure to stress alters ethanol-induced gene expression changes and that exposure to alcohol alters stress-induced gene expression changes. Behavior was profiled in all groups following treatment, and many of the differentially expressed genes are correlated with behavioral variation within experimental groups. Interestingly, in each group several genes were correlated with the same phenotype, suggesting that these genes are the potential origins of significant genetic networks. The distinct sets of differentially expressed genes within each group provide the basis for identifying molecular networks that may aid in understanding the complex interactions between stress and ethanol, and potentially provide relevant therapeutic targets. Using Ptp4a1, a candidate gene underlying the quantitative trait locus for several of these phenotypes, and network analyses, we show that a large group of differentially expressed genes in the NOE group are highly interrelated, some of which have previously been linked to alcohol addiction or alcohol-related phenotypes.
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Williams EC, Joo YS, Lipira L, Glass JE. Psychosocial stressors and alcohol use, severity, and treatment receipt across human immunodeficiency virus (HIV) status in a nationally representative sample of US residents. Subst Abus 2016; 38:269-277. [PMID: 27925867 DOI: 10.1080/08897077.2016.1268238] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Human immunodeficiency virus (HIV) is stigmatized and disproportionately impacts vulnerable populations. Thus, people living with HIV (PLWH) may have greater exposure to psychosocial stressors than those without HIV. Exposure to psychosocial stressors may increase alcohol use and serve as barriers to alcohol treatment receipt. The authors evaluate whether psychosocial stressors and alcohol use, symptom severity, and treatment receipt vary across HIV status in a general population sample of US residents and assess whether psychosocial stressors mediate identified associations. METHODS Data from Wave 2 of the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC) were used to assess associations between HIV status and psychosocial stressors (perceived stress, alcohol-related stigma, and perceived discrimination based on race/ethnicity, sexual orientation, or sex) and alcohol-related outcomes (any use, heavy drinking, symptom severity, and treatment receipt). For each outcome, regression models were fit and iteratively adjusted for sociodemographic characteristics and comorbidities. Indirect effects of HIV on alcohol-related outcomes through stressors were estimated to assess mediation when main effects were significant. RESULTS Among 34,653 NESARC Wave 2 respondents, 161 were PLWH. PLWH were more likely than those without HIV to experience discrimination and had higher levels of perceived stress than those without HIV (P values <.05), but the 2 groups did not differ regarding alcohol-related stigma. PLWH were less likely to use alcohol and had similar rates of heavy drinking relative to participants without HIV, but alcohol symptom severity and treatment receipt were greater among PLWH. Perceived stress but not discrimination mediated associations. CONCLUSIONS Findings from this first study of variation in psychosocial stressors and alcohol use, severity, and treatment receipt across HIV status further highlight PLWH as a population that is particularly vulnerable to experiences of psychosocial stress and certain adverse alcohol-related outcomes. Future longitudinal research is needed in a larger sample of PLWH to identify intervention targets.
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Affiliation(s)
- Emily C Williams
- a Health Services Research & Development (HSR&D) , Center of Innovation for Veteran-Centered and Value-Driven Care, Veterans Affairs (VA) Puget Sound Health Care System , Seattle , Washington , USA.,b Department of Health Services , University of Washington , Seattle , Washington , USA.,c Group Health Research Institute , Seattle, Washington , USA
| | - Young Sun Joo
- c Group Health Research Institute , Seattle, Washington , USA
| | - Lauren Lipira
- b Department of Health Services , University of Washington , Seattle , Washington , USA
| | - Joseph E Glass
- c Group Health Research Institute , Seattle, Washington , USA
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Lee KM, Coelho MA, McGregor HA, Solton NR, Cohen M, Szumlinski KK. Adolescent Mice Are Resilient to Alcohol Withdrawal-Induced Anxiety and Changes in Indices of Glutamate Function within the Nucleus Accumbens. Front Cell Neurosci 2016; 10:265. [PMID: 27917110 PMCID: PMC5114265 DOI: 10.3389/fncel.2016.00265] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Accepted: 10/31/2016] [Indexed: 11/13/2022] Open
Abstract
Binge-drinking is the most prevalent form of alcohol abuse and while an early life history of binge-drinking is a significant risk factor for subsequent alcoholism and co-morbid affective disorders, relatively little is known regarding the biobehavioral impact of binge-drinking during the sensitive neurodevelopmental period of adolescence. In adult mice, a month-long history of binge-drinking elicits a hyper-glutamatergic state within the nucleus accumbens (Acb), coinciding with hyper-anxiety. Herein, we employed a murine model of binge-drinking to determine whether or not: (1) withdrawal-induced changes in brain and behavior differ between adult and adolescent bingers; and (2) increased behavioral signs of negative affect and changes in Acb expression of glutamate-related proteins would be apparent in adult mice with less chronic binge-drinking experience (14 days, approximating the duration of mouse adolescence). Adult and adolescent male C57BL/6J mice were subjected to a 14-day binge-drinking protocol (5, 10, 20 and 40% alcohol (v/v) for 2 h/day), while age-matched controls received water. At 24 h withdrawal, half of the animals from each group were assayed for negative affect, while tissue was sampled from the shell (AcbSh) and core (AcbC) subregions of the remaining mice for immunoblotting analyses. Adult bingers exhibited hyper-anxiety when tested for defensive marble burying. Additionally, adult bingers showed increased mGlu1, mGlu5, and GluN2b expression in the AcbSh and PKCε and CAMKII in the AcbC. Compared to adults, adolescent mice exhibited higher alcohol intake and blood alcohol concentrations (BACs); however, adolescent bingers did not show increased anxiety in the marble-burying test. Furthermore, adolescent bingers also failed to exhibit the same alcohol-induced changes in mGlu and kinase protein expression seen in the adult bingers. Irrespective of age, bingers exhibited behavioral hyperactivity in the forced swim test (FST) compared to water drinkers, which was paralleled by an increase in AcbC levels of GluN2b. Thus, a 2-week period of binge-drinking is sufficient to produce a hyper-anxious state and related increases in protein indices of Acb glutamate function. In contrast, adolescents were resilient to many of the effects of early alcohol withdrawal and this attenuated sensitivity to the negative consequences of binge drinking may facilitate greater alcohol intake in adolescent drinkers.
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Affiliation(s)
- Kaziya M. Lee
- Department of Psychological and Brain Sciences, University of California Santa BarbaraSanta Barbara, CA, USA
| | - Michal A. Coelho
- Department of Psychological and Brain Sciences, University of California Santa BarbaraSanta Barbara, CA, USA
| | - Hadley A. McGregor
- Department of Psychological and Brain Sciences, University of California Santa BarbaraSanta Barbara, CA, USA
| | - Noah R. Solton
- Department of Psychological and Brain Sciences, University of California Santa BarbaraSanta Barbara, CA, USA
| | - Matan Cohen
- Department of Psychological and Brain Sciences, University of California Santa BarbaraSanta Barbara, CA, USA
| | - Karen K. Szumlinski
- Department of Psychological and Brain Sciences, University of California Santa BarbaraSanta Barbara, CA, USA
- Department of Molecular, Cellular and Developmental Biology and the Neuroscience Research Institute, University of California Santa BarbaraSanta Barbara, CA, USA
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Richman JA, Rospenda KM, Nawyn SJ, Flaherty JA. Workplace harassment and the self-medication of distress: a conceptual model and case illustrations. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/009145099702400109] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Judith A. Richman
- Department of Psychiatry at the University of Illinois at Chicago (Psychiatric Institute, M/C912, 1601 West Taylor St., Chicago 60612)
| | - Kathleen M. Rospenda
- Harassment study and a doctoral student in organizational psychology at DePaul University
| | | | - Joseph A. Flaherty
- Deputy head of the Department of Psychiatry at the University of Illinois at Chicago
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32
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Affiliation(s)
- Kari Poikolainen
- National Public Health Institute of Finland (Mannerheimintie 166, 00300 Helsinki)
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Pandy V, Khan Y. Noni (Morinda citrifolia Linn.) fruit juice attenuates the rewarding effect of ethanol in conditioned place preference in mice. Exp Anim 2016; 65:437-445. [PMID: 27333840 PMCID: PMC5111847 DOI: 10.1538/expanim.16-0018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Morinda citrifolia L. commonly known as noni or Indian mulberry belongs
to the family Rubiaceae. Noni fruit juice has recently become a very popular remedy for
the treatment of several diseases, including psychiatric disorders. This study aimed to
investigate the anticraving effect of Tahitian Noni® Juice (TNJ) against ethanol seeking
behavior in ICR male mice using the conditioned place preference (CPP) test. The CPP
procedure consisted of four phases: preconditioning, conditioning, extinction, and
reinstatement. During conditioning, intraperitoneal (i.p.) injections of ethanol (2 g/kg
body weight (bw)) and normal saline (10 ml/kg bw) were given on alternate days for 12
days. Then, the animals were subjected to extinction trials for the next 12 days to weaken
CPP. Finally, CPP was reinstated in the extinguished animals by a single low-dose priming
injection of ethanol (0.4 g/kg bw, i.p.). The effect of TNJ (as a source of drinking
water) on different phases of ethanol CPP in mice was studied. TNJ-treated mice showed a
significant reduction in ethanol seeking behavior in the CPP test. The reference drug,
acamprosate (ACAM) also showed a similar effect in the CPP test. The outcome of this study
suggests that TNJ is effective in attenuating ethanol craving in mice and could be
utilized for the treatment of alcohol dependence. Further clinical studies in this
direction are warranted to support the present preclinical findings.
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Affiliation(s)
- Vijayapandi Pandy
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
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34
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Ashley MJ, Rehm J, Bondy S, Single E, Rankin J. Beyond Ischemic Heart Disease: Are There other Health Benefits from Drinking Alcohol? ACTA ACUST UNITED AC 2016. [DOI: 10.1177/009145090002700403] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Evidence is growing that alcohol consumption confers health benefits beyond protection from ischemic heart disease. We review this evidence with regard to cerebrovascular disease, peripheral vascular disease, diabetes, cholelithiasis (gallstones), cognitive functioning, and stress reduction and subjective psychosocial benefits. Other possible benefits are briefly considered. The weight of evidence suggests that low-level alcohol consumption offers some protection against ischemic stroke. The evidence that moderate alcohol consumption protects against diabetes and gallstones is also fairly strong. The possibility of other health benefits cannot be dismissed. For all the conditions considered, more research is indicated. The application of more appropriate statistical techniques, studies of patterns of drinking, and experimental approaches to delineating underlying mechanisms should enable firmer conclusions to be drawn. A better understanding of both the benefits and the risks of alcohol use for individuals and populations will facilitate the development of appropriate program and policy interventions to promote health.
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Windle M, Windle RC. A prospective study of stressful events, coping motives for drinking, and alcohol use among middle-aged adults. J Stud Alcohol Drugs 2016; 76:465-73. [PMID: 25978834 DOI: 10.15288/jsad.2015.76.465] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE This prospective study investigated moderator variable models of the interrelationships among stressful events, coping motives for drinking, and current alcohol use on subsequent alcohol use across a 5-year window with middle-aged adults. METHOD Data from women (n = 716; M(age) = 55.29 years at baseline) and men (n = 505; M(age) = 57.57 years at baseline) were used to examine theory-guided hypotheses that current levels of alcohol use would interact with stressful events and coping motives for drinking to predict higher levels of alcohol use across time. Analyses were conducted separately for men and women. RESULTS After we controlled for several potentially important covariates (i.e., age, educational level, family income, and marital status), prospective regression analyses supported moderator effects for current alcohol use and stressful events as predictors of changes in alcohol use, and a somewhat weaker consistency of moderator effects for current alcohol use and coping motives for drinking as predictors of changes in alcohol use. For example, higher levels of baseline alcohol involvement in conjunction with higher levels of stress predicted higher levels of alcohol use and alcohol problems 5 years later. Similarly, higher levels of coping motives and higher levels of heavy episodic drinking predicted higher levels of heavy episodic drinking among women 5 years later. CONCLUSIONS The findings were discussed from an alcohol-stress vulnerability model of affect regulation and a positive regulatory feedback loop perspective wherein conditional relationships among baseline alcohol use indicators, stressful events, and coping drinking motives predicted greater alcohol involvement, especially problematic use, across time.
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Affiliation(s)
- Michael Windle
- Department of Behavioral Sciences and Health Education, Emory University, Atlanta, Georgia
| | - Rebecca C Windle
- Department of Behavioral Sciences and Health Education, Emory University, Atlanta, Georgia
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Effect of different stressors on voluntary ethanol intake in ethanol-dependent and nondependent C57BL/6J mice. Alcohol 2016; 51:17-23. [PMID: 26992696 DOI: 10.1016/j.alcohol.2015.11.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 11/19/2015] [Accepted: 11/23/2015] [Indexed: 12/12/2022]
Abstract
Several animal models have evaluated the effect of stress on voluntary ethanol intake with mixed results. The experiments reported here examined the effects of different stressors on voluntary ethanol consumption in dependent and nondependent adult male C57BL/6J mice. In Experiment 1, restraint, forced swim, and social defeat stress procedures all tended to reduce ethanol intake in nondependent mice regardless of whether the stress experience occurred 1 h or 4 h prior to ethanol access. The reduction in ethanol consumption was most robust following restraint stress. Experiment 2 examined the effects of forced swim stress and social defeat stress on drinking in a dependence model that involved repeated cycles of chronic intermittent ethanol (CIE) exposure. Repeated exposure to forced swim stress prior to intervening test drinking periods that followed repeated cycles of CIE exposure further increased ethanol consumption in CIE-exposed mice while not altering intake in nondependent mice. In contrast, repeated exposure to the social defeat stressor in a similar manner reduced ethanol consumption in CIE-exposed mice while not altering drinking in nondependent mice. Results from Experiment 3 confirmed this selective effect of forced swim stress increasing ethanol consumption in mice with a history of CIE exposure, and also demonstrated that enhanced drinking is only observed when the forced swim stressor is administered during each test drinking week, but not if it is applied only during the final test week. Collectively, these studies point to a unique interaction between repeated stress experience and CIE exposure, and also suggest that such an effect depends on the nature of the stressor. Future studies will need to further explore the generalizability of these results, as well as mechanisms underlying the ability of forced swim stress to selectively further enhance ethanol consumption in dependent (CIE-exposed) mice but not alter intake in nondependent animals.
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Blaine SK, Milivojevic V, Fox H, Sinha R. Alcohol Effects on Stress Pathways: Impact on Craving and Relapse Risk. CANADIAN JOURNAL OF PSYCHIATRY. REVUE CANADIENNE DE PSYCHIATRIE 2016; 61:145-53. [PMID: 27254089 PMCID: PMC4813419 DOI: 10.1177/0706743716632512] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A significant amount of neurobiological research regarding the development of alcohol use disorders (AUDs) has focused on alcohol-related activation and long-term alterations in the mesocortical dopaminergic reward pathways. However, alcohol does not only interact with brain reward systems. Many of its acute and chronic effects may be related to allostatic adaptations in hypothalamic and extrahypothalamic stress regulation pathways. For example, acute binge intoxication is associated with hypothalamically driven increases in blood cortisol, norepinephrine, and sex steroid metabolite levels. This may contribute to the development of mesocortical sensitization to alcohol. Furthermore, chronic alcohol exposure is associated with systemic dysregulation of the hypothalamic pituitary adrenal axis, sympathetic adrenal medullary system, and sex steroid systems. This dysregulation appears to manifest as neuroendocrine tolerance. In this review, we first summarize the literature suggesting that alcohol-induced alterations in these hypothalamic systems influence craving and contribute to the development of AUDs. We note that for women, the effects of alcohol on these neuroendocrine stress regulation systems may be influenced by the rhythmic variations of hormones and steroids across the menstrual cycle. Second, we discuss how changes in these systems may indicate progression of AUDs and increased risk of relapse in both sexes. Specifically, neuroendocrine tolerance may contribute to mesocortical sensitization, which in turn may lead to decreased prefrontal inhibitory control of the dopaminergic reward and hypothalamic stress systems. Thus, pharmacological strategies that counteract alcohol-associated changes in hypothalamic and extrahypothalamic stress regulation pathways may slow the development and progression of AUDs.
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Affiliation(s)
- Sara K Blaine
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut
| | - Verica Milivojevic
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut
| | - Helen Fox
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut
| | - Rajita Sinha
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut
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Wscieklica T, de Barros Viana M, Le Sueur Maluf L, Pouza KCP, Spadari RC, Céspedes IC. Alcohol consumption increases locomotion in an open field and induces Fos-immunoreactivity in reward and approach/withdrawal-related neurocircuitries. Alcohol 2016; 50:73-82. [PMID: 26786746 DOI: 10.1016/j.alcohol.2015.11.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Revised: 11/17/2015] [Accepted: 11/19/2015] [Indexed: 12/16/2022]
Abstract
Drug addiction is a chronically relapsing disorder characterized by compulsion to seek and take the drug, loss of control in limiting intake and, eventually, the emergence of a negative emotional state when access to the drug is prevented. Both dopamine and corticotropin-releasing factor (CRF)-mediated systems seem to play important roles in the modulation of alcohol abuse and dependence. The present study investigated the effects of alcohol consumption on anxiety and locomotor parameters and on the activation of dopamine and CRF-innervated brain regions. Male Wistar rats were given a choice of two bottles for 31 days, one containing water and the other a solution of saccharin + alcohol. Control animals only received water and a solution of 0.2% saccharin. On the 31st day, animals were tested in the elevated plus-maze and open field, and euthanized immediately after the behavioral tests. An independent group of animals was treated with ethanol and used to measure blood ethanol concentration. Results showed that alcohol intake did not alter behavioral measurements in the plus-maze, but increased the number of crossings in the open field, an index of locomotor activity. Additionally, alcohol intake increased Fos-immunoreactivity (Fos-ir) in the prefrontal cortex, in the shell region of the nucleus accumbens, in the medial and central amygdala, in the bed nucleus of the stria terminalis, in the septal region, and in the paraventricular and dorsomedial hypothalamus, structures that have been linked to reward and to approach/withdrawal behavior. These observations might be relevant to a better understanding of the behavioral and physiological alterations that follow alcohol consumption.
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Affiliation(s)
- Tatiana Wscieklica
- Departamento de Biociências, Universidade Federal de São Paulo, 11060-001 Santos, Brazil
| | - Milena de Barros Viana
- Departamento de Biociências, Universidade Federal de São Paulo, 11060-001 Santos, Brazil
| | - Luciana Le Sueur Maluf
- Departamento de Biociências, Universidade Federal de São Paulo, 11060-001 Santos, Brazil
| | | | - Regina Célia Spadari
- Departamento de Biociências, Universidade Federal de São Paulo, 11060-001 Santos, Brazil
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Tran S, Nowicki M, Fulcher N, Chatterjee D, Gerlai R. Interaction between handling induced stress and anxiolytic effects of ethanol in zebrafish: A behavioral and neurochemical analysis. Behav Brain Res 2016; 298:278-85. [DOI: 10.1016/j.bbr.2015.10.061] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 10/05/2015] [Accepted: 10/08/2015] [Indexed: 10/22/2022]
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ALCOHOLIZATION IN THE STRUCTURE OF POSTSTRESS MALADJUSTMENT. EUREKA: HEALTH SCIENCES 2016. [DOI: 10.21303/2504-5679.2016.00041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Analysis of the literature data on alcoholic addiction, poststress maladjustment and its combination revealed the significant number of common node moments in pathogenic mechanisms of its appearing and realization. It concerns biological mechanisms that are common for both processes and its activation at one of them provokes the development of the other. First of all it is stem structures of brain and neuroendocrine mechanisms of central and peripheral regulation and its activation is cross for stressor reaction and alcoholization. There was revealed the leading role of stressor reaction mechanisms and its association with poststress maladjustment in formation of psychological alcoholic addiction. There was constructed hypothetical model of development and functioning of association pathogenetic mechanisms with formation of comorbidity of analyzed pathological states.
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Urquhart KR, Zhao Y, Baker JA, Lu Y, Yan L, Cook MN, Jones BC, Hamre KM, Lu L. A novel heat shock protein alpha 8 (Hspa8) molecular network mediating responses to stress- and ethanol-related behaviors. Neurogenetics 2016; 17:91-105. [PMID: 26780340 DOI: 10.1007/s10048-015-0470-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 12/10/2015] [Indexed: 12/15/2022]
Abstract
Genetic differences mediate individual differences in susceptibility and responses to stress and ethanol, although, the specific molecular pathways that control these responses are not fully understood. Heat shock protein alpha 8 (Hspa8) is a molecular chaperone and member of the heat shock protein family that plays an integral role in the stress response and that has been implicated as an ethanol-responsive gene. Therefore, we assessed its role in mediating responses to stress and ethanol across varying genetic backgrounds. The hippocampus is an important mediator of these responses, and thus, was examined in the BXD family of mice in this study. We conducted bioinformatic analyses to dissect genetic factors modulating Hspa8 expression, identify downstream targets of Hspa8, and examined its role. Hspa8 is trans-regulated by a gene or genes on chromosome 14 and is part of a molecular network that regulates stress- and ethanol-related behaviors. To determine additional components of this network, we identified direct or indirect targets of Hspa8 and show that these genes, as predicted, participate in processes such as protein folding and organic substance metabolic processes. Two phenotypes that map to the Hspa8 locus are anxiety-related and numerous other anxiety- and/or ethanol-related behaviors significantly correlate with Hspa8 expression. To more directly assay this relationship, we examined differences in gene expression following exposure to stress or alcohol and showed treatment-related differential expression of Hspa8 and a subset of the members of its network. Our findings suggest that Hspa8 plays a vital role in genetic differences in responses to stress and ethanol and their interactions.
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Affiliation(s)
- Kyle R Urquhart
- Department of Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Yinghong Zhao
- Department of Neurology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Jessica A Baker
- Department of Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Ye Lu
- The International Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Lei Yan
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Melloni N Cook
- Department of Psychology, University of Memphis, Memphis, TN, 38152, USA
| | - Byron C Jones
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Kristin M Hamre
- Department of Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
| | - Lu Lu
- Department of Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. .,Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College of Nantong University, Nantong, China.
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Kato H, Tsuji M, Miyagawa K, Takeda K, Takeda H. Ethanol Withdrawal-Induced Impaired Recognition Is Reversed by Chronic Exposure to Stress and the Acute Administration of Corticosterone in Mice. Biol Pharm Bull 2016; 39:1631-1637. [DOI: 10.1248/bpb.b16-00288] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hideaki Kato
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare
| | - Minoru Tsuji
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare
| | - Kazuya Miyagawa
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare
| | - Kotaro Takeda
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare
| | - Hiroshi Takeda
- Department of Pharmacology, School of Pharmacy, International University of Health and Welfare
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Herman MA, Varodayan FP, Oleata CS, Luu G, Kirson D, Heilig M, Ciccocioppo R, Roberto M. Glutamatergic transmission in the central nucleus of the amygdala is selectively altered in Marchigian Sardinian alcohol-preferring rats: Alcohol and CRF effects. Neuropharmacology 2015; 102:21-31. [PMID: 26519902 DOI: 10.1016/j.neuropharm.2015.10.027] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 10/22/2015] [Accepted: 10/22/2015] [Indexed: 11/25/2022]
Abstract
The CRF system of the central nucleus of the amygdala (CeA) is important for the processing of anxiety, stress, and effects of acute and chronic ethanol. We previously reported that ethanol decreases evoked glutamate transmission in the CeA of Sprague Dawley rats and that ethanol dependence alters glutamate release in the CeA. Here, we examined the effects of ethanol, CRF and a CRF1 receptor antagonist on spontaneous and evoked glutamatergic transmission in CeA neurons from Wistar and Marchigian Sardinian Preferring (msP) rats, a rodent line genetically selected for excessive alcohol drinking and characterized by heightened activity of the CRF1 system. Basal spontaneous and evoked glutamate transmission in CeA neurons from msP rats was increased compared to Wistar rats. Ethanol had divergent effects, either increasing or decreasing spontaneous glutamate release in the CeA of Wistar rats. This bidirectional effect was retained in msP rats, but the magnitude of the ethanol-induced increase in glutamate release was significantly smaller. The inhibitory effect of ethanol on evoked glutamatergic transmission was similar in both strains. CRF also either increased or decreased spontaneous glutamate release in CeA neurons of Wistar rats, however, in msP rats CRF only increased glutamate release. The inhibitory effect of CRF on evoked glutamatergic transmission was also lost in neurons from msP rats. A CRF1 antagonist produced only minor effects on spontaneous glutamate transmission, which were consistent across strains, and no effects on evoked glutamate transmission. These results demonstrate that the genetically altered CRF system of msP rats results in alterations in spontaneous and stimulated glutamate signaling in the CeA that may contribute to both the anxiety and drinking behavioral phenotypes.
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Affiliation(s)
- Melissa A Herman
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA
| | - Florence P Varodayan
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA
| | - Christopher S Oleata
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA
| | - George Luu
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA
| | - Dean Kirson
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA
| | - Markus Heilig
- National Institute on Alcohol Abuse and Alcoholism, Laboratory of Clinical and Translational Sciences, National Institutes of Health, Bldg.10-CRC/Rm. 1-5330, 10 Center Drive, Bethesda, MD 20892-1108, USA
| | - Roberto Ciccocioppo
- School of Pharmacy, Pharmacology Unit, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, Italy
| | - Marisa Roberto
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA.
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Miczek KA, DeBold JF, Hwa LS, Newman EL, de Almeida RMM. Alcohol and violence: neuropeptidergic modulation of monoamine systems. Ann N Y Acad Sci 2015; 1349:96-118. [PMID: 26285061 DOI: 10.1111/nyas.12862] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Neurobiological processes underlying the epidemiologically established link between alcohol and several types of social, aggressive, and violent behavior remain poorly understood. Acute low doses of alcohol, as well as withdrawal from long-term alcohol use, may lead to escalated aggressive behavior in a subset of individuals. An urgent task will be to disentangle the host of interacting genetic and environmental risk factors in individuals who are predisposed to engage in escalated aggressive behavior. The modulation of 5-hydroxytryptamine impulse flow by gamma-aminobutyric acid (GABA) and glutamate, acting via distinct ionotropic and metabotropic receptor subtypes in the dorsal raphe nucleus during alcohol consumption, is of critical significance in the suppression and escalation of aggressive behavior. In anticipation and reaction to aggressive behavior, neuropeptides such as corticotropin-releasing factor, neuropeptide Y, opioid peptides, and vasopressin interact with monoamines, GABA, and glutamate to attenuate and amplify aggressive behavior in alcohol-consuming individuals. These neuromodulators represent novel molecular targets for intervention that await clinical validation. Intermittent episodes of brief social defeat during aggressive confrontations are sufficient to cause long-lasting neuroadaptations that can lead to the escalation of alcohol consumption.
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Affiliation(s)
- Klaus A Miczek
- Departments of Pharmacology, Psychiatry, and Neuroscience, Tufts University, Boston, Massachusetts.,Department of Psychology, Tufts University, Medford, Massachusetts
| | - Joseph F DeBold
- Department of Psychology, Tufts University, Medford, Massachusetts
| | - Lara S Hwa
- Department of Psychology, Tufts University, Medford, Massachusetts
| | - Emily L Newman
- Department of Psychology, Tufts University, Medford, Massachusetts
| | - Rosa M M de Almeida
- Department of Psychology, LPNeC, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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The Role of Catastrophizing Beliefs in Effective Chronic Pain Treatment. JOURNAL OF RATIONAL-EMOTIVE AND COGNITIVE-BEHAVIOR THERAPY 2015. [DOI: 10.1007/s10942-015-0220-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Jiang H, Livingston M, Room R. How financial difficulties interplay with expenditures on alcohol: Australian experience. J Public Health (Oxf) 2015. [DOI: 10.1007/s10389-015-0679-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Crofton EJ, Zhang Y, Green TA. Inoculation stress hypothesis of environmental enrichment. Neurosci Biobehav Rev 2015; 49:19-31. [PMID: 25449533 PMCID: PMC4305384 DOI: 10.1016/j.neubiorev.2014.11.017] [Citation(s) in RCA: 136] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 10/28/2014] [Accepted: 11/21/2014] [Indexed: 01/28/2023]
Abstract
One hallmark of psychiatric conditions is the vast continuum of individual differences in susceptibility vs. resilience resulting from the interaction of genetic and environmental factors. The environmental enrichment paradigm is an animal model that is useful for studying a range of psychiatric conditions, including protective phenotypes in addiction and depression models. The major question is how environmental enrichment, a non-drug and non-surgical manipulation, can produce such robust individual differences in such a wide range of behaviors. This paper draws from a variety of published sources to outline a coherent hypothesis of inoculation stress as a factor producing the protective enrichment phenotypes. The basic tenet suggests that chronic mild stress from living in a complex environment and interacting non-aggressively with conspecifics can inoculate enriched rats against subsequent stressors and/or drugs of abuse. This paper reviews the enrichment phenotypes, mulls the fundamental nature of environmental enrichment vs. isolation, discusses the most appropriate control for environmental enrichment, and challenges the idea that cortisol/corticosterone equals stress. The intent of the inoculation stress hypothesis of environmental enrichment is to provide a scaffold with which to build testable hypotheses for the elucidation of the molecular mechanisms underlying these protective phenotypes and thus provide new therapeutic targets to treat psychiatric/neurological conditions.
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Affiliation(s)
- Elizabeth J Crofton
- Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, United States
| | - Yafang Zhang
- Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, United States
| | - Thomas A Green
- Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555, United States.
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Priya PH, Girish BP, Reddy PS. Restraint stress exacerbates alcohol-induced reproductive toxicity in male rats. Alcohol 2014; 48:781-6. [PMID: 25446643 DOI: 10.1016/j.alcohol.2014.07.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 07/06/2014] [Accepted: 07/09/2014] [Indexed: 11/16/2022]
Abstract
Cumulative exposure to multiple stresses may lead to aggravating the toxicity of each stress, qualitatively or quantitatively altering biological responses because of toxicological interaction. In this study, we intended to determine the possible effects of restraint stress on reproductive toxicity due to ethanol usage in male rats. Early pubertal male Wistar rats were subjected to either restraint stress (5 h/day) or alcohol intoxication (2 mg/kg body weight) or both for 60 days. Body weights of control and experimental rats were similar during the 60 days of this study. Testes were harvested, weighed, and prepared for enzyme assays, and cauda epididymides were isolated for the determination of density, motility, and viability of stored spermatozoa. Restraint stress or alcohol treatment significantly reduced testis weight and caused significant reductions in steroidogenesis and spermatogenesis. Mean density, motility, and viability of stored spermatozoa were reduced in experimental rats. Plasma testosterone concentrations in rats subjected to restraint stress or alcohol were decreased compared with those of controls, concomitant with increased concentrations of LH and FSH in experimental rats. These data suggest that sub-chronic exposure to restraint stress or alcohol contribute to reduce testicular and epididymal function in exposed rats. The study also suggests that restraint stress exacerbates alcohol-induced reproductive toxicity in rats.
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Affiliation(s)
- P Hari Priya
- Department of Biotechnology, Sri Venkateswara University, Tirupati 517502, India
| | - B P Girish
- Department of Biotechnology, Sri Venkateswara University, Tirupati 517502, India
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Mayeux JP, Teng SX, Katz PS, Gilpin NW, Molina PE. Traumatic brain injury induces neuroinflammation and neuronal degeneration that is associated with escalated alcohol self-administration in rats. Behav Brain Res 2014; 279:22-30. [PMID: 25446758 DOI: 10.1016/j.bbr.2014.10.053] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 10/24/2014] [Accepted: 10/31/2014] [Indexed: 01/21/2023]
Abstract
BACKGROUND Traumatic brain injury (TBI) affects millions of people each year and is characterized by direct tissue injury followed by a neuroinflammatory response. The post-TBI recovery period can be associated with a negative emotional state characterized by alterations in affective behaviors implicated in the development of Alcohol Use Disorder in humans. The aim of this study was to test the hypothesis that post-TBI neuroinflammation is associated with behavioral dysfunction, including escalated alcohol intake. METHODS Adult male Wistar rats were trained to self-administer alcohol prior to counterbalanced assignment into naïve, craniotomy, and TBI groups by baseline drinking. TBI was produced by lateral fluid percussion (LFP; >2 ATM; 25ms). Alcohol drinking and neurobehavioral function were measured at baseline and following TBI in all experimental groups. Markers of neuroinflammation (GFAP and ED1) and neurodegeneration (FJC) were determined by fluorescence histochemistry in brains excised at sacrifice 19 days post-TBI. RESULTS The cumulative increase in alcohol intake over the 15 days post-TBI was greater in TBI animals compared to naïve controls. A higher rate of pre-injury alcohol intake was associated with a greater increase in post-injury alcohol intake in both TBI and craniotomy animals. Immediately following TBI, both TBI and craniotomy animals exhibited greater neurobehavioral dysfunction compared to naïve animals. GFAP, IBA-1, ED1, and FJC immunoreactivity at 19 days post-TBI was significantly higher in brains from TBI animals compared to both craniotomy and naïve animals. CONCLUSIONS These results show an association between post-TBI escalation of alcohol drinking and marked localized neuroinflammation at the site of injury. Moreover, these results highlight the relevance of baseline alcohol preference in determining post-TBI alcohol drinking. Further investigation to determine the contribution of neuroinflammation to increased alcohol drinking post-TBI is warranted.
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Affiliation(s)
- Jacques P Mayeux
- Department of Physiology and Alcohol and Drug Abuse Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA 70112, United States
| | - Sophie X Teng
- Department of Physiology and Alcohol and Drug Abuse Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA 70112, United States
| | - Paige S Katz
- Department of Physiology and Alcohol and Drug Abuse Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA 70112, United States
| | - Nicholas W Gilpin
- Department of Physiology and Alcohol and Drug Abuse Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA 70112, United States
| | - Patricia E Molina
- Department of Physiology and Alcohol and Drug Abuse Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA 70112, United States.
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