Co-morbid anxiety disorders predict early relapse after inpatient alcohol treatment

Web-based intervention for young adults experiencing anxiety and hazardous alcohol use: Study protocol for an 18-month randomized controlled trial

BACKGROUND AND AIMS

Alcohol use and anxiety often co-occur, causing increased severity impairment. This protocol describes a randomized controlled trial (RCT) that aims to test the efficacy and cost-effectiveness of a web-based, self-guided alcohol and anxiety-focused program, compared with a web-based brief alcohol-focused program, for young adults who drink at hazardous levels and experience anxiety. It will also test moderators and mechanisms of change underlying the intervention effects.

DESIGN

This RCT will be conducted with a 1:1 parallel group.

SETTING

The study will be a web-based trial in Australia.

PARTICIPANTS

Individuals aged 17-30 years who drink alcohol at hazardous or greater levels and experience at least mild anxiety (n = 500) will be recruited through social media, media (TV, print) and community networks.

INTERVENTION AND COMPARATOR

Participants will be randomly allocated to receive a web-based, integrated alcohol-anxiety program plus technical and motivational telephone/e-mail support (intervention) or a web-based brief alcohol-feedback program (control).

MEASUREMENTS

Clinical measures will be assessed at baseline, post-intervention (2 months), 6 months (primary end-point), 12 months and 18 months. Co-primary outcomes are hazardous alcohol consumption and anxiety symptom severity. Secondary outcomes are binge-drinking frequency; alcohol-related consequences; depression symptoms; clinical diagnoses of alcohol use or anxiety disorder (at 6 months post-intervention), health-care service use, educational and employment outcomes; and quality of life. Mediators and moderators will also be assessed. Efficacy will be tested using mixed models for repeated measures within an intention-to-treat framework. The economic evaluation will analyze individual-level health and societal costs and outcomes of participants between each trial arm, while mediation models will test for mechanisms of change.

COMMENTS

This will be the first trial to test whether a developmentally targeted, web-based, integrated alcohol-anxiety intervention is effective in reducing hazardous alcohol use and anxiety severity among young adults. If successful, the integrated alcohol-anxiety program will provide an accessible intervention that can be widely disseminated to improve wellbeing of young adults, at minimal cost.

Clustering of methamphetamine users based on personality characteristics and self-efficacy in the west of Iran

With the substantial increase in the use of stimulants, especially methamphetamine, in recent years, the present study aimed to cluster methamphetamine users based on personality traits and self-efficacy, and compare their mental health, sleep quality, and the risk of relapse in the identified clusters. This cross-sectional study was conducted through convenience sampling on 501 methamphetamine users in addiction treatment centers in Kermanshah, western Iran. The data were collected using the Schwarzer General Self-Efficacy Scale, Zuckerman-Kuhlman Personality Questionnaire, Goldberg and Hiller General Health Questionnaire (GHQ), Zuckerman-Kuhlman Personality Questionnaire, and Stimulant Relapse Risk Scale (SRRS). A total of 501 methamphetamine users were distinguished into three clusters with frequencies of 111 (22.2%), 298 (59.5%), and 92 (18.4%) members through hierarchical cluster analysis. The participants in the first cluster were characterized by low self-efficacy, high neuroticism, sensation seeking, and aggressiveness, along with low extroversion and activity, low positive health, high negative health, low sleep quality, and high risk of drug relapse. The participants in the second cluster reported moderate levels of self-efficacy, neuroticism, sensation seeking, activity, and aggressiveness, high extroversion, and moderate levels of mental health, sleep quality, and the risk of relapse. Moreover, the participants in the third cluster reported the highest level of self-efficacy, the lowest level of neuroticism, sensation seeking, and aggressiveness, moderate extroversion and high activity, low relapse risk, high sleep quality, as well as high positive and low negative health symptoms. The third cluster was significantly different from the other two clusters in terms of the mentioned factors. The findings of this study suggest that low self-efficacy and the presence of neuroticism, sensation seeking, and high aggressiveness contribute to reduced mental health and sleep quality, as well as an increased risk of relapse in methamphetamine users.

Effects of cannabidiol, with and without ∆9-tetrahydrocannabinol, on anxiety-like behavior following alcohol withdrawal in mice

Introduction

Alcohol use disorder (AUD) is commonly associated with anxiety disorders and enhanced stress-sensitivity; symptoms that can worsen during withdrawal to perpetuate continued alcohol use. Alcohol increases neuroimmune activity in the brain. Our recent evidence indicates that alcohol directly modulates neuroimmune function in the central amygdala (CeA), a key brain region regulating anxiety and alcohol intake, to alter neurotransmitter signaling. We hypothesized that cannabinoids, such as cannabidiol (CBD) and ∆9-tetrahydrocannabinol (THC), which are thought to reduce neuroinflammation and anxiety, may have potential utility to alleviate alcohol withdrawal-induced stress-sensitivity and anxiety-like behaviors via modulation of CeA neuroimmune function.

Methods

We tested the effects of CBD and CBD:THC (3:1 ratio) on anxiety-like behaviors and neuroimmune function in the CeA of mice undergoing acute (4-h) and short-term (24-h) withdrawal from chronic intermittent alcohol vapor exposure (CIE). We further examined the impact of CBD and CBD:THC on alcohol withdrawal behaviors in the presence of an additional stressor.

Results

We found that CBD and 3:1 CBD:THC increased anxiety-like behaviors at 4-h withdrawal. At 24-h withdrawal, CBD alone reduced anxiety-like behaviors while CBD:THC had mixed effects, showing increased center time indicating reduced anxiety-like behaviors, but increased immobility time that may indicate increased anxiety-like behaviors. These mixed effects may be due to altered metabolism of CBD and THC during alcohol withdrawal. Immunohistochemical analysis showed decreased S100β and Iba1 cell counts in the CeA at 4-h withdrawal, but not at 24-h withdrawal, with CBD and CBD:THC reversing alcohol withdrawal effects..

Discussion

These results suggest that the use of cannabinoids during alcohol withdrawal may lead to exacerbated anxiety depending on timing of use, which may be related to neuroimmune cell function in the CeA.

Not Two Sides of the Same Coin: A Qualitative Comparative Analysis of Post-Treatment Abstinence and Relapse

Purpose

Substance use disorder (SUD) can be a chronic relapsing condition with poor treatment outcomes. Studies exploring factors associated with abstinence or relapse after treatment are often quantitative in nature, applying linear statistical approaches, while abstinence and relapse result from non-linear, complex, dynamic and synergistic processes. This study aims to explore these underlying dynamics using qualitative comparative analysis (QCA) as a mixed methods approach to further our understanding of factors contributing to post-treatment abstinence and relapse.

Patients and Methods

In a prospective study, we gathered both qualitative and quantitative data pertaining to post-treatment substance use and the factors linked to substance use outcomes. These factors encompassed psychiatric comorbidity, intellectual disability, social disintegration, post-treatment support, and engagement in activities among patients who had undergone inpatient treatment for severe SUD (n = 58). QCA, a set-theoretic approach that considers the complex interplay of multiple conditions, was applied to discern which factors were necessary or sufficient for the occurrence of either abstinence or relapse.

Results

We found two solutions predicting abstinence, and five for relapse. Post-treatment conditions (support and engagement in activities) were important for retaining abstinence. For relapse, individual baseline characteristics (intellectual disability, social disintegration, psychiatric comorbidity) combined with (post-)treatment factors (post-treatment support, activities) were important.

Conclusion

Although abstinence and relapse represent opposing outcomes, they each exhibit distinct dynamics. To gain a comprehensive understanding of these dynamics, it is advisable to examine them as separate outcomes. For clinical practice, it can be worthwhile to recognize that fostering the conditions conducive to abstinence may differ from preventing the factors that trigger relapse.

Integrated behavioral treatments for comorbid anxiety and substance use disorders: A model for understanding integrated treatment approaches and meta-analysis to evaluate their efficacy

INTRODUCTION

Substance use disorders (SUD) and anxiety disorders are highly comorbid, and this comorbidity is associated with poor clinical outcomes. Emerging research in the last decade has shifted from addressing these problems separately to the development and evaluation of behavioral treatments that integrate care for anxiety disorders (or elevated symptoms of anxiety) and SUD.

METHODS

An extensive literature search revealed a sufficient number of studies (K=11) to conduct a meta-analysis comparing the efficacy of integrated SUD/anxiety disorder behavioral treatment to SUD treatment alone on substance use and anxiety symptom outcomes. Randomized clinical trials including those with SUD and either anxiety disorders or elevations in constructs implicated in the maintenance of anxiety disorder/SUD comorbidity were included. This study meta-analyzes the effects of these studies.

RESULTS

Integrated treatments outperformed SUD treatments alone on both substance use and anxiety outcomes, with small to moderate effects favoring integrated treatments. There was no significant heterogeneity across studies in the primary analyses, such that moderator analyses to identify variables that yielded differential patterns of effect sizes were not conducted.

DISCUSSION

Integrated treatments for SUD/anxiety disorders demonstrate an incremental but significant and clinically meaningful improvement over SUD treatment alone for SUD/anxiety disorder comorbidity. Implications for future research and clinical practice paradigm shifting are discussed.

IL-18 Signaling in the Rat Central Amygdala Is Disrupted in a Comorbid Model of Post-Traumatic Stress and Alcohol Use Disorder

Alcohol use disorder (AUD) and anxiety disorders are frequently comorbid and share dysregulated neuroimmune-related pathways. Here, we used our established rat model of comorbid post-traumatic stress disorder (PTSD)/AUD to characterize the interleukin 18 (IL-18) system in the central amygdala (CeA). Male and female rats underwent novel (NOV) and familiar (FAM) shock stress, or no stress (unstressed controls; CTL) followed by voluntary alcohol drinking and PTSD-related behaviors, then all received renewed alcohol access prior to the experiments. In situ hybridization revealed that the number of CeA positive cells for Il18 mRNA increased, while for Il18bp decreased in both male and female FAM stressed rats versus CTL. No changes were observed in Il18r1 expression across groups. Ex vivo electrophysiology showed that IL-18 reduced GABAA-mediated miniature inhibitory postsynaptic currents (mIPSCs) frequencies in CTL, suggesting reduced CeA GABA release, regardless of sex. Notably, this presynaptic effect of IL-18 was lost in both NOV and FAM males, while it persisted in NOV and FAM females. IL-18 decreased mIPSC amplitude in CTL female rats, suggesting postsynaptic effects. Overall, our results suggest that stress in rats with alcohol access impacts CeA IL-18-system expression and, in sex-related fashion, IL-18's modulatory function at GABA synapses.

Trajectories of change in subclinical anxiety and alcohol use during alcohol treatment: A parallel process growth model

BACKGROUND

Anxiety is implicated in the course and prognosis of alcohol use disorder (AUD); however, it is unclear how current AUD treatments affect the joint trajectories of anxiety and alcohol use. We used data from the Combined Pharmacotherapies and Behavioral Interventions for Alcohol Dependence (COMBINE) study to examine the longitudinal relationship between subclinical anxiety symptoms and alcohol use during and following AUD treatment in adults with AUD and no comorbid anxiety disorders.

METHODS

Univariate and parallel process growth models using five waves of COMBINE study data were analyzed from 865 adults randomized to medication (n = 429) or medication plus psychotherapy (n = 436). Weekly drinking quantity and average weekly anxiety symptoms were measured at baseline, mid-treatment, end-of-treatment, and three follow-up periods.

RESULTS

Significant positive associations of anxiety symptoms and drinking were found at mid-treatment and over time. Temporal associations revealed that higher mid-treatment anxiety predicted decreases in drinking over time. Baseline anxiety and drinking predicted mid-treatment anxiety and drinking. Only baseline anxiety predicted increases in drinking over time. Group differences revealed mid-treatment drinking predicted decreases in anxiety over time in the medication group.

CONCLUSIONS

Findings demonstrate the influence of subclinical anxiety on alcohol use during and up to one year after AUD treatment. Baseline anxiety symptoms may influence drinking behavior over the course of treatment. Findings suggest that greater attention to negative affect in AUD treatment is warranted even for those individuals who do have a comorbid anxiety disorder.

Correlates and consequences of anxiety and depressive symptom trajectories during early treatment for alcohol use

We investigated whether latent trajectories of anxiety and depressive symptoms were associated with clinically relevant variables including treatment attrition among individuals seeking treatment for alcohol use. Participants were drawn from 78 addiction treatment centers and included individuals in treatment for alcohol use, had in-treatment data, and screened positive for anxiety (n = 6147) or depressive symptoms (n = 6197) at intake. Anxiety and depressive symptoms were measured weekly during the first month of treatment. Three trajectories of anxiety symptoms (i.e., Persistent Moderate Anxiety Symptoms, Remitting Moderate Anxiety Symptoms, and Remitting Mild Anxiety Symptoms) and depressive symptoms (i.e., Increasing Moderate Depressive Symptoms, Persistent Moderate Depressive Symptoms, and Remitting Mild Depressive Symptoms) were identified. Women, younger individuals, and individuals who endorsed greater past month benzodiazepine use and depressive symptoms at intake were more likely to be in the Persistent Moderate Anxiety Symptoms trajectory relative to the Remitting Mild Anxiety Symptoms subgroup. Women, individuals who screened positive for anxiety at intake, and individuals reporting past month heroin use were more likely to be in the Increasing Moderate Depressive Symptoms trajectory relative to the Remitting Mild Depressive Symptom trajectory. Trajectories characterized by persistent moderate anxiety and depressive symptoms during the first month of treatment were more likely to drop out of treatment compared to individuals who reported low symptom levels. Findings indicate heterogeneity in the clinical course of anxiety and depressive symptoms among individuals in treatment for alcohol use and highlight that persistently high anxiety and depressive symptoms may pose an impediment to successful treatment completion. Results also demonstrate the importance of considering demographic and clinical characteristics at treatment intake as they may have significant implications for the unfolding of anxiety and depressive symptoms during treatment and subsequent outcomes.

Relationship between anxiety and drug abstention motivation in men with substance use disorders: a cross-sectional study of compulsory isolation rehabilitation in China

Studies have found that anxiety is among the common negative emotions in individuals with substance use disorders. Anxiety affects drug abstention motivation, but the mechanism underlying this effect is still unclear. The current study aimed to examine the relationship among anxiety, regulatory emotional self-efficacy, psychological resilience and drug abstention motivation in an attempt to explore the mechanism underlying drug abstention motivation. The participants were 732 men with substance use disorders who were sent to compulsory rehabilitation in China. All participants completed measures of anxiety, regulatory emotional self-efficacy, psychological resilience and drug abstention motivation through questionnaires. The results indicated that anxiety negatively predicts drug abstention motivation. Regulatory emotional self-efficacy mediates the relationship between anxiety and drug abstention motivation. In addition, psychological resilience moderates the mediation between anxiety and regulatory emotional self-efficacy. The current results are not only helpful for understanding the relationship between anxiety and drug abstention motivation from the perspective of emotion but also of great significance for guiding individuals with substance use disorders in enhancing their drug abstention motivation by reducing negative emotion.

Changes in Alcohol Consumption after 1 Year of the COVID-19 Pandemic: A Cross-Sectional Study in a Region of France

BACKGROUND

There is conflicting evidence on how the COVID-19 pandemic changed patterns of alcohol consumption. While some studies have suggested that alcohol consumption decreased at the beginning of the pandemic, there are limited data for a longer period. The objective of this study was to investigate changes in alcohol consumption 1 year after the onset of the COVID-19 pandemic in France, and to identify vulnerable subgroups in a French adult population.

METHODS

This was a single-center, cross-sectional, descriptive study. Self-reported changes in alcohol consumption were collected from 2491 respondents in a survey carried out in western Brittany from 18 January to 9 March 2021.

RESULTS

Of respondents, 27.64% reported that they had increased their alcohol consumption, 14.7% had decreased, 3.94% had ceased, and 53.72% reported no change in their alcohol consumption. Increased alcohol use was associated with male gender, age 26 to 44 years, living with a family, not being a health professional, having had a physical or psychological health problem during lockdowns, smoking tobacco, and using cannabis. Reduced alcohol use or cessation was associated with male gender, age 18 to 25 years, living in Brest, living alone, and using cannabis.

CONCLUSIONS

Our study suggests that during the COVID-19 pandemic, a significant number of people increased their alcohol consumption in France, even outside lockdowns. These results should encourage health professionals and public authorities to implement more specific prevention measures to limit the risks associated with alcohol consumption.

The effect of combined cognitive-behavioral psychoeducation and music intervention on stress, self-efficacy, and relapse rates in patients with alcohol and substance use disorders: A randomized controlled trial

PURPOSE

This study was conducted to determine the effect of psychoeducation and music intervention on stress, self-efficacy, and relapse rates in alcohol and substance use disorders.

DESIGN AND METHODS

This was a randomized controlled study. The study sample included 62 patients who met the inclusion criteria. For 3 weeks, the patients in the experimental group received eight sessions of psychoeducation and music intervention.

FINDINGS

The total mean Self-Efficacy Scale score of the participants in the experimental group significantly increased as compared with that of the control group. The experimental group's total mean Perceived Stress Scale score and relapse rate significantly decreased compared to that of the control group.

PRACTICE IMPLICATIONS

Psychoeducation and music intervention effectively reduced stress, increased self-efficacy, and prevented relapses.

Dynorphin/Kappa Opioid Receptor Activity Within the Extended Amygdala Contributes to Stress-Enhanced Alcohol Drinking in Mice

BACKGROUND

While there is high comorbidity of stress-related disorders and alcohol use disorder, few effective treatments are available and elucidating underlying neurobiological mechanisms has been hampered by a general lack of reliable animal models. Here, we use a novel mouse model demonstrating robust and reproducible stress-enhanced alcohol drinking to examine the role of dynorphin/kappa opioid receptor (DYN/KOR) activity within the extended amygdala in mediating this stress-alcohol interaction.

METHODS

Mice received repeated weekly cycles of chronic intermittent ethanol exposure alternating with weekly drinking sessions ± forced swim stress exposure. Pdyn messenger RNA expression was measured in the central amygdala (CeA), and DYN-expressing CeA neurons were then targeted for chemogenetic inhibition. Finally, a KOR antagonist was microinjected into the CeA or bed nucleus of the stria terminalis to examine the role of KOR signaling in promoting stress-enhanced drinking.

RESULTS

Stress (forced swim stress) selectively increased alcohol drinking in mice with a history of chronic intermittent ethanol exposure, and this was accompanied by elevated Pdyn messenger RNA levels in the CeA. Targeted chemogenetic silencing of DYN-expressing CeA neurons blocked stress-enhanced drinking, and KOR antagonism in the CeA or bed nucleus of the stria terminalis significantly reduced stress-induced elevated alcohol consumption without altering moderate intake in control mice.

CONCLUSIONS

Using a novel and robust model of stress-enhanced alcohol drinking, a significant role for DYN/KOR activity within extended amygdala circuitry in mediating this effect was demonstrated, thereby providing further evidence that the DYN/KOR system may be a valuable target in the development of more effective treatments for individuals presenting with comorbidity of stress-related disorders and alcohol use disorder.

Acamprosate may be safer than baclofen for the treatment of alcohol use disorder in patients with cirrhosis: a first description of use in real-world clinical practice

OBJECTIVES

Patients with alcohol use disorder (AUD) and liver cirrhosis benefit from stopping alcohol intake. Baclofen has been trialled for AUD in cirrhosis and appears to be effective. However, in patients without cirrhosis acamprosate is safer and more efficacious. Acamprosate is rarely used in cirrhosis due to safety concerns: the only published report was for 24 h in a controlled setting. Our centre uses both medications off-label in cirrhotic patients. We performed an audit to pragmatically compare the safety of acamprosate to baclofen in these patients.

METHODS

The electronic records of patients prescribed acamprosate or baclofen between 01/04/17 and 31/03/20 were retrospectively reviewed. Adverse events and abstinence at last follow-up were compared by Student's t-test, Mann-Whitney U or chi-square test. Confounding variables were evaluated by logistic regression.

RESULTS

In total 48 cirrhotic patients taking acamprosate (median 84 days, range 2-524); 44 baclofen (247 days, 8-910) met inclusion criteria. At baseline, 41% had Childs-Pugh B or C cirrhosis. More patients taking baclofen had an unplanned hospital admission or attendance (23 vs 13; P = 0.013) and the mean number per patient was higher (1.6 vs 0.6; P = 0.032). Sub-group analysis revealed increased admissions in actively drinking patients prescribed baclofen to achieve abstinence (mean 2.4 vs 0.6; P = 0.020); acamprosate use was associated with a reduced chance of admission or attendance (OR, 0.284; 0.095-0.854; P = 0.025) independent of treatment length. No difference in efficacy was observed.

CONCLUSIONS

In patients with cirrhosis, acamprosate was associated with fewer unplanned admissions than baclofen, hence may be safer despite historical concerns.

Synaptic effects of IL-1β and CRF in the central amygdala after protracted alcohol abstinence in male rhesus macaques

A major barrier to remission from an alcohol use disorder (AUD) is the continued risk of relapse during abstinence. Assessing the neuroadaptations after chronic alcohol and repeated abstinence is important to identify mechanisms that may contribute to relapse. In this study, we used a rhesus macaque model of long-term alcohol use and repeated abstinence, providing a platform to extend mechanistic findings from rodents to primates. The central amygdala (CeA) displays elevated GABA release following chronic alcohol in rodents and in abstinent male macaques, highlighting this neuroadaptation as a conserved mechanism that may underlie excessive alcohol consumption. Here, we determined circulating interleukin-1β (IL-1β) levels, CeA transcriptomic changes, and the effects of IL-1β and corticotropin releasing factor (CRF) signaling on CeA GABA transmission in male controls and abstinent drinkers. While no significant differences in peripheral IL-1β or the CeA transcriptome were observed, pathway analysis identified several canonical immune-related pathways. We addressed this potential dysregulation of CeA immune signaling in abstient drinkers with an electrophysiological approach. We found that IL-1β decreased CeA GABA release in controls while abstinent drinkers were less sensitive to IL-1β's effects, suggesting adaptations in the neuromodulatory role of IL-1β. In contrast, CRF enhanced CeA GABA release similarly in controls and abstinent drinkers, consistent with rodent studies. Notably, CeA CRF expression was inversely correlated with intoxication, suggesting that CRF levels during abstinence may predict future intoxication. Together, our findings highlight conserved and divergent actions of chronic alcohol on neuroimmune and stress signaling on CeA GABA transmission across rodents and macaques.

Probiotics attenuate alcohol-induced muscle mechanical hyperalgesia: Preliminary observations

Alcohol use disorder (AUD) is a major health problem that causes millions of deaths annually world-wide. AUD is considered to be a chronic pain disorder, that is exacerbated by alcohol withdrawal, contributing to a high (∼80%) relapse rate. Chronic alcohol consumption has a marked impact on the gut microbiome, recognized to have a significant effect on chronic pain. We tested the hypothesis that modulating gut microbiota through feeding rats with probiotics can attenuate alcohol-induced muscle mechanical hyperalgesia. To test this hypothesis, rats were fed alcohol (6.5%, 4 days on 3 days off) for 3 weeks, which induced skeletal muscle mechanical hyperalgesia. Following alcohol feeding, at which time nociceptive thresholds were ∼37% below pre-alcohol levels, rats received probiotics in their drinking water, either Lactobacillus Rhamnosus GG (Culturelle) or De Simone Formulation (a mixture of 8 bacterial species) for 8 days; control rats received plain water to drink. When muscle mechanical nociceptive threshold was evaluated 1 day after beginning probiotic feeding, nociceptive thresholds were significantly higher than rats not receiving probiotics. Mechanical nociceptive thresholds continued to increase during probiotic feeding, with thresholds approaching pre-alcohol levels 5 days after starting probiotics; nociceptive threshold in rats not receiving probiotics remained low. After probiotics were removed from the drinking water, nociceptive thresholds gradually decreased in these two groups, although they remained higher than the group not treated with probiotic (21 days after ending alcohol feeding). These observations suggest that modification of gut microbiota through probiotic feeding has a marked effect on chronic alcohol-induced muscle mechanical hyperalgesia. Our results suggest that administration of probiotics to individuals with AUD may reduce pain associated with alcohol consumption and withdrawal, and may be a novel therapeutic intervention to reduce the high rate of relapse seen in individuals with AUD attempting to abstain from alcohol.

Sex differences in affective states and association with voluntary ethanol intake in Sprague-Dawley rats

Alcohol use disorders (AUDs) are a major problem across the USA. While AUD remains a complex human condition, it is difficult to isolate the directionality of anxiety and ethanol (EtOH) drinking from outside influences. The present study sought to investigate the relationship between affective states and EtOH intake using male and female Sprague-Dawley rats. Using complementary tests of anxiety- and depressive-like behavior, we found sex- and test-specific differences in basal affective behavior such that females displayed enhanced anxiety-like behavior in the splash test and males displayed enhanced anxiety-like behavior in the novelty-suppressed feeding test. Although, there were no sex differences in EtOH intake and no correlation between baseline anxiety-like behavior and subsequent EtOH intake, we did find that depressive-like behavior predicted future EtOH intake in female rats only. In addition, we observed an increase in depressive-like behavior is male rats in both the water and EtOH drinking groups (compared to baseline levels). Furthermore, post-drinking anxiety-like behavior, but not depressive-like behavior predicted subsequent EtOH intake in female rats. Lastly, we found a history of EtOH intake decreased pain thresholds in male and female rats, but increased anxiety-like and depressive-like behavior was associated with decreased thermal sensitivity only in EtOH-drinking males. Together, these experiments provide important information on the complex interaction between negative affect and EtOH intake and how these two contexts reciprocally do, or do not, influence each other in a sex-specific manner.

The Effectiveness of Exercise as an Adjunct Intervention to Improve Quality of Life and Mood in Substance Use Disorder: A Systematic Review

Introduction: Quality of life and affective outcomes offer a perspective of the burden of disease experienced by people with substance use disorder. This can be considered an alternative measure of substance use disorder severity. This review aims to evaluate the impact of exercise as a novel intervention on quality of life and affect in substance use disorder. Method: Medline, CINAHL, Amed, Web of Science core collections, Embase, PsychINFO and SportDISCUS databases were searched from inception to August 2021 for studies that assessed the impact of exercise on mood, depression, anxiety and quality of life outcomes in substance use disorder. Exercise interventions of any duration were included. Results: Forty-two studies met the inclusion criteria. Quality of life scores improved with larger effects seen in studies with two or more sessions per week. Depression and anxiety scores decreased, with 19 of the 25 data sets reporting a reduction in depression (effect size 0.2-1.86) and 13 of the 17 data sets reporting a reduction in anxiety (effect sizes 0.2-1.42). Mood improved in six of the seven data sets reviewed with effect sizes ranging from 0.34 to 1.13. Discussion: Included studies had numerous methodological flaws therefore results need to be interpreted with caution. Further research needs to be completed with more rigorous methodologies to support these results. Conclusions: Results indicate promising responses to exercise as a novel intervention for quality of life and mood in substance use disorder, however further research of high methodological quality is needed to confirm.

Lower Emotion Regulation Competencies Mediate the Association between Impulsivity and Craving during Alcohol Withdrawal Treatment

There is evidence that craving mediates the relationship between Impulsive Personality Traits (IPTs) and relapse during the treatment of an Alcohol Use Disorder (AUD). To provide tailored interventions, a deeper understanding of the relation between IPTs and craving, namely mediating processes, is important. Based on previous literature, we proposed that lower emotion regulation competencies mediate the relation between attentional as well as non-planning IPTs and craving. To investigate these interrelations, we used data from the baseline assessment (n = 320) of the SmartAssistEntz project (pre-registered in the German Clinical Trials Register [DRKS00017700]). Inpatients with a primary AUD diagnosis were interviewed using standardized self-report measures (IPTs: BIS-15, emotion regulation competencies: ERSQ, craving: OCDS-G short version) during their withdrawal treatment. Indirect effects were calculated using the SPSS macro PROCESS v3.5. Attentional as well as non-planning, but not motor, IPTs were associated with craving. Emotion regulation competencies mediated the relationship between attentional as well as non-planning IPTs and craving. Given their mediating role in the present study, it is interesting to investigate if addressing emotion regulation competencies can mitigate the negative influences of attentional and non-planning IPTs. The direct effect of attentional IPTs implicates alternate mediating processes, which should also be investigated in future research.

Meaning in life as a mediator of dark triad with confidence in treatment and subjective evaluation of treatment outcome among male drug abstainers

BACKGROUND

Although the roles of personality in predicting substance abuse have been widely documented, few studies have investigated the relationships the dark triad (DT) personalities had with confidence in treatment (CIT) and subjective evaluation of treatment outcome (SETO) in drug abstainers.

OBJECTIVE

This study examined the relationship between DT and treatment-relevant variables, and the potential effect of meaning in life (MIL) in these links.

METHODS

Participants were male inpatients who started substance abuse treatment between June and December 2018 in Henan Province, China. The inclusion criteria were the diagnosis of substance use disorders. The exclusion criteria were illiteracy, comorbidity with psychopathology disorders, intellectual disability, and refusal of consent. A total of 236 men (aged 21-62 years, M = 45.30, SD = 7.72) were randomly selected and reported their DT, MIL, CIT, and SETO.

RESULTS

Results showed that DT was negatively correlated with MIL, CIT, and SETO. MIL was positively correlated with CIT and SETO. The dark triad is associated with CIT both directly and indirectly via MIL. DT is indirectly correlated with SETO via MIL. Higher levels of DT in drug abstainers can reduce CIT and SETO by decreasing individual's MIL.

CONCLUSION

This study provides insights into the links between the DT and treatment-relevant variables, which can potentially impact the effectiveness of current substance abuse treatment programs.

Sex and context differences in the effects of trauma on comorbid alcohol use and post-traumatic stress phenotypes in actively drinking rats

Alcohol use disorder (AUD) and affective disorders are frequently comorbid and share underlying mechanisms that could be targets for comprehensive treatment. Post-traumatic stress disorder (PTSD) has high comorbidity with AUD, but comprehensive models of this overlap are nascent. We recently characterized a model of comorbid AUD and PTSD-like symptoms, wherein stressed rats receive an inhibitory avoidance (IA)-related footshock on two occasions followed by two-bottle choice (2BC) voluntary alcohol drinking. Stressed rats received the second footshock in a familiar (FAM, same IA box as the first footshock) or novel context (NOV, single-chambered apparatus); the FAM paradigm more effectively increased alcohol drinking in males and the NOV paradigm in females. During abstinence, stressed males displayed avoidance-like PTSD symptoms, and females showed hyperarousal-like PTSD symptoms. Rats in the model had altered spontaneous action potential-independent GABAergic transmission in the central amygdala (CeA), a brain region key in alcohol dependence and stress-related signaling. However, PTSD sufferers may have alcohol experience prior to their trauma. Here, we therefore modified our AUD/PTSD comorbidity model to provide 3 weeks of intermittent extended alcohol access before footshock and then studied the effects of NOV and FAM stress on drinking and PTSD phenotypes. NOV stress suppressed the escalation of alcohol intake and preference seen in male controls, but no stress effects were seen on drinking in females. Additionally, NOV males had decreased action potential-independent presynaptic GABA release and delayed postsynaptic GABAA receptor kinetics in the CeA compared to control and FAM males. Despite these changes to alcohol intake and CeA GABA signaling, stressed rats showed broadly similar anxiogenic-like behaviors to our previous comorbid model, suggesting decoupling of the PTSD symptoms from the AUD vulnerability for some of these animals. The collective results show the importance of alcohol history and trauma context in vulnerability to comorbid AUD/PTSD-like symptoms.

The relationship between expressed emotion, personality traits and prognosis of alcohol and substance addiction: 6-month follow-up study

AIM

Preventing relapses in addiction and related factors are still being investigated. There is inadequate data, specifically, on the effects of expressed emotion (EE) among key relatives of patients with alcohol and substance use disorder (ASUD), the personality traits of patients, and the clinical features of addiction on relapses.

MATERIAL AND METHOD

This study was conducted with patients with ASUD (n = 102, 98 male) and their relatives (n = 102, 44 male). The Dependency Profile Index, and the Temperament and Character Inventory were applied to the patients, while the EE scale was applied to key relatives. Relapse rates were evaluated six months later.

RESULTS

EE levels among key relatives of patients were found to be associated with early relapse rates (p = 0.002). In addition, the individuals the patients lived with (p = 0.041), income level (p = 0.048), working status (p = 0.039), time spent in profession (p = 0.007), and severity of addiction (p = 0.016) were all found to be significantly associated with relapses. The personality traits of patients were not related to early relapses. In logistic regression analysis, EE and time spent in a profession were found to be significantly associated with relapses (p = 0.014, 0.043 respectively), while other variables were not significant.

CONCLUSION

The relationship between relapse in the early period of abstaining from substance use and EE levels of key relatives seems to be a greater determinant for ongoing success than several other variables in patients with ASUD, including addiction severity. The research suggests that families be involved in programs that help prevent relapses.

The validity of the state-trait anxiety inventory and the brief scale for anxiety in an inpatient sample with alcohol use disorder

BACKGROUND AND AIMS

The Brief Scale for Anxiety (BSA) and the State-Trait Anxiety Inventory Form Y-2 (STAI-Y-2) are self-report scales used to gauge anxiety symptoms in clinical settings. Co-occuring anxiety is common in alcohol use disorder (AUD); however, no studies have assessed the validity of the BSA and STAI-Y-2 compared with a clinical diagnostic tool of anxiety in alcohol treatment programs. We aimed to examine the validity of the BSA and STAI-Y-2 to predict a clinical diagnosis of an anxiety disorder (via the Structured Clinical Interview for DSM [SCID]) in AUD patients.

DESIGN

Participants were administered the BSA (n = 1005) on day 2 and the STAI-Y-2 (n = 483) between days 2 and 10 of the detoxification program. SCID-based clinical diagnoses of AUD and anxiety were made approximately on day 10.

SETTING AND PARTICIPANTS

Individuals seeking treatment for AUD admitted to an inpatient unit at the National Institutes of Health (NIH) Clinical Center in Bethesda, MD, USA (n = 1010).

MEASUREMENTS

Inclusion criteria included a current diagnosis of alcohol dependence (AD) according to DSM-IV-TR or moderate to severe AUD according to DSM-5-RV, as well as available baseline BSA and/or STAI Y-2 data. Empirical receiver operating characteristic (ROC) curves were generated using estimates of sensitivity, 1-specificity and positive and negative predictive values for each cut-point to determine the accuracy of scale outcomes in relation to SCID diagnoses.

FINDINGS

The BSA demonstrated low accuracy relative to a clinical diagnosis of anxiety with an area under the curve (AUC) of 0.67 at the optimal cut-point of ≥ 10. The STAI-Y-2 had moderate accuracy relative to a clinical diagnosis of anxiety with an AUC of 0.70 at the optimal cut-point of ≥ 51. The accuracy of the STAI-Y-2 increased (AUC = 0.74) when excluding post-traumatic stress disorder and obsessive-compulsive disorder from anxiety disorder classification.

CONCLUSIONS

Use of the Brief Scale for Anxiety (BSA) and/or State-Trait Anxiety Inventory Form Y-2 (STAI-Y-2) does not appear to be a reliable substitute for clinical diagnoses of anxiety disorder among inpatients with alcohol use disorder. The BSA and STAI-Y-2 could serve as a screening tool to reject the presence of anxiety disorders rather than for detecting an anxiety disorder.

Predictors of Relapse to Alcohol and Substance Use: Are There Any Differences between 3 and 12 Months after Inpatient Treatment?

Understanding the factors that lead to relapse is important for developing effective treatment strategies. The aim of this study is to examine sociodemographic and clinical factors that predict relapse 3 and 12 months after inpatient treatment in patients with alcohol and substance use disorders. 247 patients were included in the study. A sociodemographic data form and the Addiction Profile Index-Clinical Form (API-C) were filled out during the first days of hospitalization and relapse information was obtained through outpatient interviews. Logistic regression analysis was used to assess predictive factors. Rates of relapse for the 3^rd and 12^th months were 40.5% and 74.6%, respectively. Motivation to quit substance use, risk of depression, being on probation, and being employed predicted relapse within the 3-month period. At the 12^th month, substance use intensity and motivation to quit were the factors associated with relapse. To conclude, motivation to quit is critical to maintaining both early and sustained remission. Moreover, divergent factors may be relevant at different stages of treatment. Defining relapse predictors early in the process and being vigilant to the change in the needs of patients as the treatment continues may help to develop a more effective and focused treatment plan.

Clinical Relevance of Immersive Virtual Reality in the Assessment and Treatment of Addictive Disorders: A Systematic Review and Future Perspective

(1) Background: Virtual reality (VR) has been investigated in a variety of psychiatric disorders, including addictive disorders (ADs); (2) Objective: This systematic review evaluates the current evidence of immersive VR (using head-mounted displays) in the clinical assessment and treatment of ADs; (3) Method: PubMed and PsycINFO were queried for publications up to November 2020; (4) Results: We screened 4519 titles, 114 abstracts and 85 full-texts, and analyzed 36 articles regarding the clinical assessment (i.e., diagnostic and prognostic value; n = 19) and treatment (i.e., interventions; n = 17) of ADs. Though most VR assessment studies (n = 15/19) showed associations between VR-induced cue-reactivity and clinical parameters, only two studies specified diagnostic value. VR treatment studies based on exposure therapy showed no or negative effects. However, other VR interventions like embodied and aversive learning paradigms demonstrated positive findings. The overall study quality was rather poor; (5) Conclusion: Though VR in ADs provides ecologically valid environments to induce cue-reactivity and provide new treatment paradigms, the added clinical value in assessment and therapy remains to be elucidated before VR can be applied in clinical care. Therefore, future work should investigate VR efficacy in randomized clinical trials using well-defined clinical endpoints.

A systematic review and meta-analysis of the efficacy of the long-term treatment and support of substance use disorders

RATIONALE

The reconceptualization of substance use disorders (SUD) as a chronic phenomenon calls for a paradigm shift in service provision, particularly by way of long-term treatment and support. Studies that have evaluated the efficacy of long-term treatment models seem to indicate that they are an improvement on more standard short-term treatments, even though these studies do not take the durations into consideration.

OBJECTIVE

Measure the efficacy of SUD treatments and support lasting 18 months or more regarding their ability to decrease substance use as compared to shorter treatments.

METHODS

A meta-analysis based on a systematic literature review was conducted. Eight databases were consulted for peer-reviewed studies. Certain variables were coded as moderators: intervention length, participant characteristics, and treatment characteristics.

RESULTS

The main results suggest that the people who received a planned long-term treatment or support had a 23.9 % greater chance of abstaining or consuming moderately than did people who received a shorter standard treatment (OR = 1.347 [CI 95 % = 1.087-1.668], p < .006, adjusted OR = 1.460 [CI 95 % = 1.145-1.861]). None of the moderation analyses revealed any variation in the efficacy of the long-term treatments and support.

CONCLUSIONS

The reconceptualization of the SUD as a chronic disorder among people with this problem leads us to reconsider both the length of the services provided and the paradigms underlying their organization.

A Web-Based Cognitive Bias Modification Intervention (Re-train Your Brain) for Emerging Adults With Co-occurring Social Anxiety and Hazardous Alcohol Use: Protocol for a Multiarm Randomized Controlled Pilot Trial

BACKGROUND

Alcohol use and anxiety disorders commonly co-occur, resulting in a more severe clinical presentation and poorer response to treatment. Research has shown that approach bias modification (ApBM) and interpretation bias modification (IBM) cognitive retraining interventions can be efficacious adjunctive treatments that improve outcomes for alcohol use and social anxiety, respectively. However, the acceptability, feasibility, and clinical utility of combining ApBM and IBM programs to optimize treatments among comorbid samples are unknown. It is also unclear whether integrating ApBM and IBM within each training session or alternating them between each session is more acceptable and efficacious.

OBJECTIVE

This paper describes the protocol for a randomized controlled pilot trial investigating the feasibility, acceptability, and preliminary efficacy of the Re-train Your Brain intervention-an adjunct web-based ApBM+IBM program-among a clinical sample of emerging adults with hazardous alcohol use and social anxiety.

METHODS

The study involves a three-arm randomized controlled pilot trial in which treatment-seeking emerging adults (18-30 years) with co-occurring hazardous alcohol use and social anxiety will be individually randomized to receive the Re-train Your Brain integrated program, delivered with 10 biweekly sessions focusing on both social anxiety and alcohol each week, plus treatment as usual (TAU; ie, the model of care provided in accordance with standard practice at their service; n=30); the Re-train Your Brain alternating program, delivered with 10 biweekly sessions focusing on social anxiety one week and alcohol the next week, plus TAU (n=30); or TAU only (n=30). Primary outcomes include feasibility (uptake, follow-up rates, treatment adherence, attrition, and adverse events) and acceptability (system usability, client satisfaction, user experience, and training format preference). Secondary efficacy outcomes include changes in alcohol approach and interpretation biases, social anxiety, and alcohol use (eg, drinks per day, binge drinking, drinking motives, severity of dependence, and cravings). The primary end point will be posttreatment (6 weeks postbaseline), with a secondary end point at 3 months postbaseline. Descriptive statistics will be conducted for primary outcomes, whereas intention-to-treat, multilevel mixed effects analysis for repeated measures will be performed for secondary outcomes.

RESULTS

This study is funded from 2019 to 2023 by Australian Rotary Health. Recruitment is expected to be completed by mid-2022 to late 2022, with follow-ups completed by early 2023.

CONCLUSIONS

This study will be the first to evaluate whether an ApBM+IBM program is acceptable to treatment-seeking, emerging adults and whether it can be feasibly delivered via the web, in settings where it will ultimately be used (eg, at home). The findings will broaden our understanding of the types of programs that emerging adults will engage with and whether the program may be an efficacious treatment option for this comorbidity.

TRIAL REGISTRATION

Australian New Zealand Clinical Trials Registry ACTRN12620001273976; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=364131.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

PRR1-10.2196/28667.

Childhood trauma and the prevalence of alcohol dependence in adulthood

Introduction: The experience of trauma and stress in childhood and early adulthood can lead not only to immediate physical and psychological symptoms but also to long-term effects observed in later life.

Aim and method: The objective of the following study was to search for the correlation between the occurrence of childhood trauma and its long-term outcome, that is alcohol dependence, and to review studies concerning the presence of certain personality traits in patients with such trauma experience and prognostic factors for treatment. The literature in the Google Scholar database was reviewed using the following keywords: childhood abuse, childhood trauma, alcohol addiction and alcohol use disorder. The time descriptors 2015-2021 were also used.

Results: On the basis of the conducted studies, it has been found that the experience of extremely stressful situations at a young age is declared by a greater part of the examined patients with alcohol dependence syndrome. It was also noticed that the most significant and most frequently reported negative childhood experiences in patients with alcohol dependence syndrome are physical violence, parental separation or divorce, and mental illness of a family member. It was found that impulsivity, disorder, pessimism, fatigue and asthenia are some of the characteristics of this group of patients.

Conclusions: It can be concluded that there is a significant correlation between the occurrence of traumatic events in childhood and the tendency to develop alcohol addiction in adulthood.

Importance of sex and trauma context on circulating cytokines and amygdalar GABAergic signaling in a comorbid model of posttraumatic stress and alcohol use disorders

Alcohol use disorder (AUD) and anxiety disorders are frequently comorbid and share mechanisms that could be therapeutic targets. To facilitate mechanistic studies, we adapted an inhibitory avoidance-based "2-hit" rat model of posttraumatic stress disorder (PTSD) and identified predictors and biomarkers of comorbid alcohol (ethanol)/PTSD-like symptoms in these animals. Stressed Wistar rats received a single footshock on two occasions. The first footshock occurred when rats crossed into the dark chamber of a shuttle box. Forty-eight hours later, rats received the second footshock in a familiar (FAM) or novel (NOV) context. Rats then received 4 weeks of two-bottle choice (2BC) ethanol access. During subsequent abstinence, PTSD-like behavior responses, GABAergic synaptic transmission in the central amygdala (CeA), and circulating cytokine levels were measured. FAM and NOV stress more effectively increased 2BC drinking in males and females, respectively. Stressed male rats, especially drinking-vulnerable individuals (≥0.8 g/kg average 2-h ethanol intake with >50% ethanol preference), showed higher fear overgeneralization in novel contexts, increased GABAergic transmission in the CeA, and a profile of increased G-CSF, GM-CSF, IL-13, IL-6, IL-17a, leptin, and IL-4 that discriminated between stress context (NOV > FAM > Control). However, drinking-resilient males showed the highest G-CSF, IL-13, and leptin levels. Stressed females showed increased acoustic startle and decreased sleep maintenance, indicative of hyperarousal, with increased CeA GABAergic transmission in NOV females. This paradigm promotes key features of PTSD, including hyperarousal, fear generalization, avoidance, and sleep disturbance, with comorbid ethanol intake, in a sex-specific fashion that approximates clinical comorbidities better than existing models, and identifies increased CeA GABAergic signaling and a distinct pro-hematopoietic, proinflammatory, and pro-atopic cytokine profile that may aid in treatment.

Therapeutic potential of ketamine for alcohol use disorder

Excessive alcohol consumption is involved in 1/10 of deaths of U.S. working-age adults and costs the country around $250,000,000 yearly. While Alcohol Use Disorder (AUD) pathology is complex and involves multiple neurotransmitter systems, changes in synaptic plasticity, hippocampal neurogenesis, and neural connectivity have been implicated in the behavioral characteristics of AUD. Depressed mood and stress are major determinants of relapse in AUD, and there is significant comorbidity between AUD, depression, and stress disorders, suggesting potential for overlap in their treatments. Disulfiram, naltrexone, and acamprosate are current pharmacotherapies for AUD, but these treatments have limitations, highlighting the need for novel therapeutics. Ketamine is a N-methyl-D-Aspartate receptor antagonist, historically used in anesthesia, but also affects other neurotransmitters systems, synaptic plasticity, neurogenesis, and neural connectivity. Currently under investigation for treating AUDs and other Substance Use Disorders (SUDs), ketamine has strong support for efficacy in treating clinical depression, recently receiving FDA approval. Ketamine's effect in treating depression and stress disorders, such as PTSD, and preliminary evidence for treating SUDs further suggests a role for treating AUDs. This review explores the behavioral and neural evidence for treating AUDs with ketamine and clinical data on ketamine therapy for AUDs and SUDs.

A balancing act: the role of pro- and anti-stress peptides within the central amygdala in anxiety and alcohol use disorders

The central nucleus of the amygdala (CeA) is widely implicated as a structure that integrates both appetitive and aversive stimuli. While intrinsic CeA microcircuits primarily consist of GABAergic neurons that regulate amygdala output, a notable feature of the CeA is the heterogeneity of neuropeptides and neuropeptide/neuromodulator receptors that it expresses. There is growing interest in the role of the CeA in mediating psychopathologies, including stress and anxiety states and their interactions with alcohol use disorders. Within the CeA, neuropeptides and neuromodulators often exert pro- or anti- stress actions, which can influence anxiety and alcohol associated behaviours. In turn, alcohol use can cause adaptions within the CeA, which may render an individual more vulnerable to stress which is a major trigger of relapse to alcohol seeking. This review examines the neurocircuitry, neurochemical phenotypes and how pro- and anti-stress peptide systems act within the CeA to regulate anxiety and alcohol seeking, focusing on preclinical observations from animal models. Furthermore, literature exploring the targeting of genetically defined populations or neuronal ensembles and the role of the CeA in mediating sex differences in stress x alcohol interactions are explored.

Randomised controlled trial of integrated cognitive behavioural treatment and motivational enhancement for comorbid social anxiety and alcohol use disorders

OBJECTIVE

Alcohol use disorder and social anxiety disorder are interconnected disorders that commonly co-occur. We report the first trial to assess whether integrated treatment for social anxiety and alcohol use disorder comorbidity improves outcomes relative to standard alcohol-focussed treatment.

METHOD

Participants were recruited to a randomised controlled trial, and randomly allocated to one of two treatments, Integrated (n = 61) or Control (alcohol-focussed; n = 56). Assessment and treatment session were conducted at two sites in Sydney, Australia. Inclusion criteria were as follows: (1) clinical diagnosis of social anxiety disorder and (2) Diagnosis or sub-clinical symptoms of alcohol use disorder. Diagnoses were determined according to the Diagnostic and Statistical Manual of Mental Disorders (4th ed.). All participants (n = 117) received 10 sessions of cognitive behavioural treatment and motivational enhancement. The Integrated treatment simultaneously targeted social anxiety disorder, alcohol use disorder and the connections between these disorders. The Control treatment focussed on alcohol use disorder only. Outcomes were assessed at 6-month follow-up, with interim assessments at post-treatment and 3 months. Primary outcomes were social anxiety disorder severity (composite Social Phobia Scale and Social Interaction Anxiety Scale), alcohol use disorder severity (standard drinks per day and Severity of Alcohol Dependence Questionnaire) and quality of life (Short-Form Health survey) was assessed to capture the combined impairment of social anxiety and alcohol use disorder comorbidity.

RESULTS

At 6-month follow-up, both conditions showed significant reductions in social anxiety and alcohol use disorder symptoms, and improved quality of life. There was no evidence of between-condition differences for alcohol outcomes, with mean consumption reduced by 5.0 (0.8) and 5.8 (1.0) drinks per day following Alcohol and Integrated treatments, respectively. Integrated treatment achieved greater improvements in social anxiety symptoms (mean difference = -14.9, 95% confidence interval = [-28.1, -1.6], d = 0.60) and quality of life (mean difference = 7.6, 95% confidence interval = [1.2, 14.0], d = 0.80) relative to alcohol-focused treatment.

CONCLUSION

These results suggest that integrated social anxiety and alcohol use disorder treatment enhances quality of life and social anxiety disorder symptom improvement, but not alcohol outcomes, compared to treatment focussed on alcohol use disorder alone.

Clinical symptoms and personality traits predict subpopulations of treatment-seeking substance users

BACKGROUND

The heterogeneity of treatment-seeking substance users represents a challenge, as most studies include participants having problems with specific substances or merge polysubstance users into the same category without considering differences between profiles. Considering the inconsistent literature on predictors of treatment outcomes, this study aimed to identify subpopulations of individuals with substance use disorders (SUDs) and analyze the association among class membership, previous relapses, and treatment retention.

METHODS

The study recruited a total of 159 participants (mean age = 40.60, SD = 8.70; 85.5% males) from two treatment facilities (outpatient daycare and inpatient residential centers). The baseline assessment gathered lifetime and current substance use, and personality and psychopathology measures. The study performed a latent class analysis to identify subpopulations of substance users and explored predictors of class membership using a multinomial regression analysis.

RESULTS

The study found six different classes of substance users based on their diagnosis and pattern of substance use: class 1 (6.92% of participants): individuals with cannabis as primary substance, alcohol/cocaine as secondary substance and additional use of stimulants or other drugs; class 2 (30.82%): cocaine as primary substance, alcohol as secondary and additional cannabis use; class 3 (20.13%): alcohol as primary substance, cocaine as secondary and additional cannabis use; class 4 (17.61%): cocaine as primary substance, cannabis as secondary and additional alcohol/other drugs use; class 5 (16.35%): alcohol as primary and cannabis as secondary substance; class 6 (8.18%): heroin as primary substance, cocaine as secondary and additional alcohol use. Several traits and clinical symptoms predicted distinct class memberships. Participants pertaining to class 6 presented the highest number of relapses (M = 2.54, SD = 1.56).

CONCLUSIONS

These results have several clinical implications. Belonging to class 6 was associated with a greater number of previous relapses. Also, specific psychopathological symptoms and personality traits may impact SUD treatment response, which may help clinicians to guide initial assessment and treatment allocation.

Emotional competence predicts outcome of an inpatient treatment program for burnout

BACKGROUND

Previous research has shown an association between burnout and low emotional competence (EC), defined as the ability to adequately regulate the intensity and expression of emotions. EC might also play a maintaining role in depression. The current paper aimed at studying the effect of improved EC on the course of burnout and depression.

METHODS

113 psychiatric inpatients completed a set of standardized self-report questionnaires at intake, discharge and three months after treatment, assessing EC, burnout, and depression. Multi-level analyses investigated the effect of improved EC on burnout and depression.

RESULTS

Improved EC including a better emotion regulation during treatment predicted favourable treatment outcomes regarding burnout and depression symptoms.

LIMITATIONS

The present results should be considered in light of some methodological limitations. Most importantly, the patient sample consists of patients of one inpatient ward and is therefore not representative of all burnout patients.

CONCLUSIONS

This study supports EC as a putative mechanism of change in the multimodal treatment of inpatients with a stress-related depressive disorder and burnout. Clinical and research consequences of the findings will be discussed.

Predictors of premature treatment termination in a large residential addiction medicine program

BACKGROUND

While inpatient programs are a common setting for addiction treatment, patients' premature termination is a major concern. Predicting premature treatment termination has the potential to substantially improve patient outcomes by identifying high-risk profiles and suggesting care paths that might reduce dropout. The current study examined the predictors of premature termination from an inpatient addiction medicine service.

METHODS

In 1082 patients admitted to a large inpatient addiction medicine service, we used intake assessments of severity of alcohol use disorder, illicit drug use disorder, post-traumatic stress disorder (PTSD), anxiety disorders, and major depressive disorder to predict planned termination (n = 922) or premature termination (n = 160). We used two complementary analytic approaches-traditional binary logistic regression and a data-driven latent profile analysis (LPA).

RESULTS

Binary logistic regression revealed that alcohol use severity, illicit drug use severity, and PTSD severity significantly predicted termination status, although alcohol use severity notably exhibited an inverse relationship. The LPA revealed four distinct profiles, with one profile exhibiting a significantly higher rate of premature termination and another exhibiting a significantly lower rate of premature termination. The high-risk profile was characterized by high drug severity, high comorbid psychopathology (PTSD, depression, and anxiety symptoms), but low alcohol severity. The low-risk profile was characterized by high alcohol severity, but low drug use and low comorbid psychopathology.

CONCLUSIONS

These results provide converging evidence that illicit drug severity and psychiatric severity, and particularly PTSD, were associated with premature termination. Moreover, the LPA revealed distinct latent subgroups of patients with meaningfully higher and lower risk of premature termination, suggesting that addiction services should develop strategies for identifying high-risk individuals or develop care paths for high-risk symptom clusters. Approaches that are trauma-informed or otherwise focus on the management of comorbid psychiatric conditions may be particularly appropriate for reducing premature termination.

Preventing relapse in alcohol disorder with EEG-neurofeedback as a neuromodulation technique: A review and new insights regarding its application

Alcohol Use Disorder (AUD) has a disconcertingly high relapse rate (70-80% within a year following withdrawal). Preventing relapse or minimizing its extent is hence a challenging goal for long-term successful management of AUD. New perspectives that rely on diverse neuromodulation tools have been developed in this regard as care supports. This paper focuses on electroencephalogram-neurofeedback (EEG-NF), which is a tool that has experienced renewed interest in both clinical and research areas. We review the literature on EEG-based neurofeedback studies investigating the efficacy in AUD and including at least 10 neurofeedback training sessions. As neurofeedback is a form of biofeedback in which a measure of brain activity is provided as feedback in real-time to a subject, the high degree of temporal resolution of the EEG interface supports optimal learning. By offering a wide range of brain oscillation targets (alpha, beta, theta, delta, gamma, and SMR) the EEG-NF procedure increases the scope of possible investigations through a multitude of experimental protocols that can be considered to reinforce or inhibit specific forms of EEG activity associated with AUD-related cognitive impairments. The present review provides an overview of the EEG-NF protocols that have been used in AUD and it highlights the current paucity of robust evidence. Within this framework, this review presents the arguments in favor of the application of EEG-NF as an add-on tool in the management of alcohol disorders to enhance the cognitive abilities required to maintain abstinence more specifically, with a focus on inhibition and attentional skills.

A Longitudinal Investigation on the Relation between Self-Compassion and Alcohol Use in a Treatment Sample: A Brief Report

Alcohol misuse is often a chronic problem such that relapses following treatment are common. One potential protective factor for alcohol misuse is self-compassion, which includes self-kindness, feelings of common humanity, and mindfulness when faced with personal suffering and hardships. This study tested the hypothesis that self-compassion, and specifically self-compassion promoting facets including self-kindness, common humanity, and mindfulness, were longitudinally associated with reduced alcohol use among a sample of men and women in substance use disorder treatment (N = 62). Results partially supported the hypothesis, in that only the mindfulness facet of self-compassion was associated with decreased alcohol use over time. Sex and age differences as they related to the positive facets of self-compassion and alcohol use emerged. These findings suggest that positive facets of self-compassion may be beneficial factors to cultivate in alcohol treatment programs.

The relationship between childhood adversity and adult personality revealed by network analysis

BACKGROUND

Childhood adversity is known to influence personality development. Studies suggest that distinct types of childhood adversities have differential effects on personality dimensions. However, different types of adversity often co-occur, and personality dimensions are strongly interconnected.

OBJECTIVE

The aim of this study was to use a network approach to analyze the interrelationships between different types of childhood adversity and diverse personality dimensions integratively.

PARTICIPANTS AND SETTING

We used previously collected data on 142 alcohol dependent patients and 102 healthy controls.

METHODS

The participants completed the Interview for Traumatic Events in Childhood, the Parental Acceptance and Rejection Questionnaire and the Temperament and Character Inventory. Outcomes on the subscales of these instruments were included in the network analysis.

RESULTS

The resulting network showed strong connections between different types of childhood adversity, and between the different temperaments and characters of personality. Childhood adversity, mainly physical abuse and maternal rejection, was connected to most personality dimensions, except for reward dependence. Physical abuse showed the highest centrality measures, indicating a central, important role in the network.

CONCLUSIONS

These findings confirm that different types of childhood adverse experiences often co-occur, and suggest that specifically physical and emotional abuse, and maternal rejection might play a prominent role in shaping personality.

Co-Occurring Alcohol Use Disorder and Anxiety: Bridging Psychiatric, Psychological, and Neurobiological Perspectives

A substantial number of people who have problems with alcohol also experience strong anxiety and mood problems. This article provides an overview of the evolving perspectives of this association in the context of three related disciplines—psychiatry, psychology, and neuroscience. Psychiatric and epidemiological studies show that having either an anxiety- or alcohol-related diagnosis elevates the prospective risk for developing the other disorder. From the psychological perspective, behavioral research demonstrates that drinking to cope with negative affect is a potent marker for current and future problems with alcohol. Neuroscientific research implicates overlapping neurobiological systems and psychological processes in promoting the rise of negative affect and alcohol misuse. The psychiatric perspective that alcohol misuse and co-occurring anxiety represent neurobiologically distinct diagnostic conditions has dominated the field for many decades. However, recent research provides increasing support for the neuroscientific perspective that these conditions share underlying, mutually exacerbating, neurobiological processes.

Assessing the collective utility of multiple analyses on clinical alcohol use disorder data

OBJECTIVE

The objective of this study was to assess the potential of combining graph learning methods with latent variable estimation methods for mining clinically useful information from observational clinical data sets.

MATERIALS AND METHODS

The data set contained self-reported measures of psychopathology symptoms from a clinical sample receiving treatment for alcohol use disorder. We used the traditional graph learning methods: Graphical Least Absolute Shrinkage and Selection Operator, and Friedman's hill climbing algorithm; traditional latent variable estimation method factor analysis; recently developed graph learning method Greedy Fast Causal Inference; and recently developed latent variable estimation method Find One Factor Clusters. Methods were assessed qualitatively by the content of their findings.

RESULTS

Recently developed graphical methods identified potential latent variables (ie, not represented in the model) influencing particular scores. Recently developed latent effect estimation methods identified plausible cross-score loadings that were not found with factor analysis. A graphical analysis of individual items identified a mistake in wording on 1 questionnaire and provided further evidence that certain scores are not reflective of indirectly measured common causes.

DISCUSSION AND CONCLUSION

Our findings suggest that a combination of Greedy Fast Causal Inference and Find One Factor Clusters can enhance the evidence-based information yield from psychopathological constructs and questionnaires. Traditional methods provided some of the same information but missed other important findings. These conclusions point the way toward more informative interrogations of existing and future data sets than are commonly employed at present.

A real-world study on clinical predictors of relapse after hospitalized detoxification in a Chinese cohort with alcohol dependence

BACKGROUND

The relapse rate of alcohol dependence (AD) after detoxification is high, but few studies have investigated the clinical predictors of relapse after hospitalized detoxification in real-world clinical practice, especially among Chinese patients.

METHODS

This longitudinal cohort study followed up 122 AD patients who were discharged from January 1, 2016 to January 30, 2018 from their most recent hospitalization for detoxification. These patients were interviewed by telephone from May 20, 2017, to June 30, 2018, at least 6 months after discharge. During the interview, the relapse were assessed by using a revised Chinese version of the Alcohol Use Disorder Identification Test. Candidate predictors, such as therapeutic modalities during hospitalization and at discharge, medical history data related to alcohol use, and demographic information, were obtained from the medical records in the hospital information system.

RESULTS

During the 6-24 months (with a median of 9 months) follow-up period, the relapse rate was 53.3%. Individuals with a college education level and those who had not been treated with the brief comprehensive cognitive-motivational-behavioural intervention (CCMBI) were more likely than their counterparts to relapse after hospitalized detoxification, and their adjusted HRs (95% CIs) were 1.85 (1.09, 3.16) and 2.00 (1.16, 3.46), respectively. The CCMBI use predicted a reduction in the relapse rate by approximately one-fifth.

CONCLUSION

Undergoing the CCMBI during detoxification hospitalization and having less than a college-level education could predict a reduced risk of AD relapse. These findings provide useful information both for further clinical research and for real-world practice.

Alcohol use disorder relapse factors: A systematic review

A relapsing-remitting course is very common in patients with an Alcohol Use Disorder (AUD). Understanding the determinants associated with alcohol resumption remains a formidable task. This paper examines relapse determinants based on a systematic review of recent alcohol literature (2000-2019). Relevant databases were consulted for articles that contained information about specific relapse determinants and reported statistical significance of each relapse determinant in predicting relapse. Relapse was broadly defined based on the characterization in the included articles. From the initial identified 4613 papers, a total of 321 articles were included. Results encompass multiple relapse determinants, which were ordered according to biopsychosocial and spiritual categories, and presented, using a descriptive methodology. Psychiatric co-morbidity, AUD severity, craving, use of other substances, health and social factors were consistently significantly associated with AUD relapse. Conversely, supportive social network factors, self efficacy, and factors related to purpose and meaning in life, were protective against AUD relapse. Despite heterogeneity in different methods, measures, and sample characteristics, these findings may contribute to a better therapeutic understanding in which specific factors are associated with relapse and those that prevent relapse. Such factors may have a role in a personalized medicine framework to improve patient outcomes.

Cholinergic Receptor Blockade in the VTA Attenuates Cue-Induced Cocaine-Seeking and Reverses the Anxiogenic Effects of Forced Abstinence

Drug relapse after periods of abstinence is a common feature of substance abuse. Moreover, anxiety and other mood disorders are often co-morbid with substance abuse. Cholinergic receptors in the ventral tegmental area (VTA) are known to mediate drug-seeking and anxiety-related behavior in rodent models. However, it is unclear if overlapping VTA cholinergic mechanisms mediate drug relapse and anxiety-related behaviors associated with drug abstinence. We examined the effects of VTA cholinergic receptor blockade on cue-induced cocaine seeking and anxiety during cocaine abstinence. Male Sprague-Dawley rats were trained to self-administer intravenous cocaine (~0.5 mg/kg/infusion, FR1 schedule) for 10 days, followed by 14 days of forced abstinence. VTA infusion of the non-selective nicotinic acetylcholine receptor antagonist mecamylamine (0, 10, and 30 μg/side) or the non-selective muscarinic receptor antagonist scopolamine (0, 2.4 and 24 μg /side) significantly decreased cue-induced cocaine seeking. In cocaine naïve rats, VTA mecamylamine or scopolamine also led to dose-dependent increases in open arm time in the elevated plus maze (EPM). In contrast, rats that received I.V. cocaine, compared to received I.V. saline rats, displayed an anxiogenic response on day 14 of abstinence as reflected by decreased open arm time in the EPM. Furthermore, low doses of VTA mecamylamine (10 μg /side) or scopolamine (2.4 μg /side), that did not alter EPM behavior in cocaine naive rats, were sufficient to reverse the anxiogenic effects of cocaine abstinence. Together, these data point to an overlapping role of VTA cholinergic mechanisms to regulate relapse and mood disorder-related responses during cocaine abstinence.

A Retrospective Descriptive Study of Nurses With Substance Use Disorders in Texas

There are approximately 3.1 million nurses in the Unites States (U.S. Census Bureau, 2016), and approximately 8% of them experience substance use disorders (Kunyk, 2015). Nurses with impaired practice are referred to peer assistance programs as they seek rehabilitation. As of 2016, 348 nurses in Texas Peer Assistance Program for Nurses were actively participating in the program for substance-abuse-related offenses. Over the last 6 years (2010-2016), 1,553 nurses were referred to Texas Peer Assistance Program for Nurses specifically for substance-abuse-related problems. These represent 2% of the population of nurses in Texas. The average age of participants was 40.1 years. Women represented 75% of participants, and 76% were registered nurses. About 41% successfully completed the program without relapsing, and 32% reported at least one relapse. Varieties of drugs were abused including prescription drugs and illegal drugs. Opioids were the most frequently abused class of drugs, followed by alcohol and stimulants. Most nurses obtained their drugs by diverting from patients. Contrary to what is in the literature, nurses working in long-term care, medical-surgical units, and home health care had the highest prevalence of impaired practice. Psychiatric comorbidity was not significantly associated with relapse, but self-report status was significantly associated with gender, age category, license type, relapse, and drug of choice. There was a significant inverse relationship between time it takes to enroll and number of abstinent days. Men were also more likely to be employed while in the program.

Frequency and Predictors of Alcohol-Related Outcomes Following Alcohol Residential Rehabilitation Programs: A 12-Month Follow-Up Study

Excessive use of alcohol has been identified as a major risk factor for diseases, injury conditions and increased mortality. The aims of this study were to estimate the frequency of success (abstinence and no alcohol related hospitalization) at 6- and 12-month follow-up after hospital discharge, and to identify the predictors of success. In 2009, a total of 1040 patients at their first admission in one of the 12 Residential Alcohol Abuse Rehabilitation Units (RAARUs) participating in the CORRAL (COordinamento of Residenzialità Riabilitative ALcologiche) project were included in the study. Several socio-demographic and clinical variables, and the number of treatments' strategies during the rehabilitation were collected. Information on alcohol abstinence and no alcohol related hospitalization was assessed through a phone interview using a health worker-administered structured questionnaire at six and 12 months after discharge. An inverse probability weighted, repeated measures Poisson regression model with robust variance was applied to estimate the association between patients' characteristics and the study's outcomes, accounting for non-responders status. The frequencies of abstinence and non-alcohol related hospitalization were 68.38% and 90.73% at six months, respectively, and 68.65% and 87.6% at 12 months, respectively. Patients that were already abstainers in the month before RAARUs' admission have an increased probability of being abstainers after discharge (relative risk: RR 1.20, 95% confidence interval: 95%CI 1.08⁻1.33) and of having an alcohol related hospitalization at 12 months. Subjects undergoing more than four treatment strategies (RR 1.19; 95% CI 1.01⁻1.40) had a higher abstinence probability and lower probability of no alcohol related hospitalizations after 12 months. Finally, patients with dual diagnosis (co-occurrence of alcohol abuse/dependence and psychiatric disorders) have a decreased probability of not being hospitalized for alcohol-related problems (RR 0.95; 95% CI 0.91⁻0.99). The results of this study suggest that specific attention should be paid to the intensity of treatment, with particular regard to a multidisciplinary rehabilitation in order to respond to the complexity of alcohol dependent patients.

Modelling Differential Vulnerability to Substance Use Disorder in Rodents: Neurobiological Mechanisms

Despite the prevalence of drug use within society, only a subset of individuals actively taking addictive drugs lose control over their intake and develop compulsive drug-seeking and intake that typifies substance use disorder (SUD). Although research in this field continues to be an important and dynamic discipline, the specific neuroadaptations that drive compulsive behaviour in humans addicted to drugs and the neurobiological mechanisms that underlie an individual's innate susceptibility to SUD remain surprisingly poorly understood. Nonetheless, it is clear from research within the clinical domain that some behavioural traits are recurrently co-expressed in individuals with SUD, thereby inviting the hypothesis that certain behavioural endophenotypes may be predictive, or at least act in some way, to modify an individual's probability for developing this disorder. The analysis of such endophenotypes and their catalytic relationship to the expression of addiction-related behaviours has been greatly augmented by experimental approaches in rodents that attempt to capture diagnostically relevant aspects of this progressive brain disorder. This work has evolved from an early focus on aberrant drug reinforcement mechanisms to a now much richer account of the putatively impaired cognitive control processes that ultimately determine individual trajectories to compulsive drug-related behaviours. In this chapter we discuss the utility of experimental approaches in rodents designed to elucidate the neurobiological and genetic underpinnings of so-called risk traits and how these innate vulnerabilities collectively contribute to the pathogenesis of SUD.

Comorbid social phobia does not predict the outcome in alcohol use disorder outpatient treatment

BACKGROUND

Social phobia (SP) is one of the most prevalent anxiety disorders among patients entering treatment for alcohol use disorders (AUD). However, few studies have examined the association between SP and alcohol-related treatment outcomes in naturalistic settings.

AIMS

The aims of this study were to estimate the prevalence of co-morbid SP and to investigate the impact of the co-morbidity on the treatment course, dropout rates and treatment outcomes in a large sample of AUD patients treated in an outpatient alcohol treatment clinic.

METHODS

The study was conducted as an observational cohort study. A consecutive sample of 3.197 treatment-seeking outpatients, with an AUD diagnosis according to the ICD-10 Diagnostic Criteria for Research, was assessed by means of the Addiction Severity Index at treatment start and at treatment conclusion.

RESULTS

Approximately 15% of the patients suffered from SP when entering treatment and patients with and without SP did not differ on the treatment course, compliance or dropout rates. SP did not predict any alcohol-related treatment outcomes either, where no association was found on change scores for abstinence, drinking days and days with excessive drinking relative to AUD patients without co-morbidity.

CONCLUSION

AUD patients with and without co-morbid SP were equally likely to achieve benefits when treated similarly with evidence-based pharmacological and psychosocial approaches in a naturalistic setting.