Prevalence of depression and alcohol and other drug dependence in addictions treatment populations

Effects of heart rate variability biofeedback (HRVBFB) on sleep quality and depression among methamphetamine users

Methamphetamine is garnering concern due to its increasing use worldwide. Depression and sleep quality are major mental health issues in substance users. Heart rate variability biofeedback (HRVBFB) has shown promising results in terms of reducing depression and increasing sleep quality. The present study aimed to explore the effects of HRVBFB on these two issues in methamphetamine users. Sixty-one methamphetamine users were enrolled and allocated randomly into a treatment as usual (TAU) group and a HRVBFB plus TAU group. The levels of depressive symptoms and sleep quality were assessed at intake, end of the intervention, and end of follow-up. Compared with baseline, the levels of depressive symptoms and poor sleep quality were decreased at the end of the intervention and follow-up in the HRVBFB group. The HRVBFB group exhibited a greater decrease in depressive symptoms and a better improvement in sleep quality than the TAU group. The associations of HRV indices with levels of depressive symptoms and poor sleep quality were different in the two groups. Our results showed that HRVBFB is a promising intervention for reducing depressive symptoms and improving sleep quality in methamphetamine users. The benefits with respect to depressive symptoms and poor sleep quality can extend beyond the end of HRVBFB intervention.

Genetic predisposition to major depressive disorder differentially impacts alcohol consumption and high-risk drinking situations in men and women with alcohol use disorder

Lifetime history of major depressive disorder (MDD) has a sex-specific association with pretreatment alcohol consumption in patients with alcohol dependence. Here, we investigated the association of genetic load for MDD estimated using a polygenic risk score (PRS) with pretreatment alcohol consumption assessed with Timeline Follow Back in a sample of 287 men and 156 women meeting DSM-IV-TR criteria for alcohol dependence. Preferred drinking situations were assessed using the Inventory of Drug Taking Situations (IDTS). Linear models were used to test for association of normalized alcohol consumption measures with the MDD-PRS, adjusting for ancestry, age, sex, and number of days sober at baseline. We fit models both with and without adjustment for MDD history and alcohol-use-related PRSs as covariates. Higher MDD-PRS was associated with lower 90-day total alcohol consumption in men (β = -0.16, p = 0.0012) but not in women (β = 0.11, p = 0.18). The association of MDD-PRS with IDTS measures was also sex-specific: higher MDD-PRS was associated with higher propensity to drink in temptation-related situations in women, while the opposite (negative association)was found in men. MDD-PRS was not associated with lifetime MDD history in our sample, and adjustment for lifetime MDD and alcohol-related PRSs did not impact the results. Our results suggest that genetic load for MDD impacts pretreatment alcohol consumption in a sex-specific manner, which is similar to, but independent from, the effect of history of MDD. The clinical implications of these findings and contributing biological and psychological factors should be investigated in future studies.

Ameliorating Effects of Virgin Coconut Oil (VCO) on Nicotine Dependence and Quality of Life in Smokers

BACKGROUND

Safer and effective alternatives to manage nicotine dependence are still required. Preliminary studies have shown the potential of virgin coconut oil (VCO) to be used in dependence treatment.

OBJECTIVE

to assess the VCO effect administered for 14 days on nicotine dependence and quality of life.

METHODS

Forty smoking subjects participated in an open-label, single-center, pre/post-intervention study, and were required to take 15 ml VCO twice daily for 14 days. They were evaluated with the Fagerstrom Test for Nicotine Dependence (FTND) for nicotine dependence intensity and EuroQol-visual analogue scales (EQ VAS) for quality of life.

RESULTS

The VCO regimen improved FTND (0.53 points decrease, p<0.05) and EQ-VAS (5.85 points increase p<0.01) scores. Adverse events were all mild.

CONCLUSION

Results of the present study suggest that VCO has the potential to be a safe and effective adjunct therapy for the management of nicotine dependence.

Associations between education levels and prevalence of depressive symptoms: NHANES (2005-2018)

PURPOSE

Our study investigated the relationships between the prevalence of depressive symptoms and education levels in those aged ≥20 years.

METHODS

A total of 34,102 participants from the National Health and Nutrition Examination Surveys 2005-2018 were involved in our cross-sectional study. The relations of depressive symptoms (as outcome variable) and education levels (as an independent variable) were analyzed using multivariable logistic regression models in the main analyzes. Sensitivity analyzes, including a multiple sensitivity analysis, were also performed.

RESULT

The education levels were negatively associated with depressive symptoms after adjusting related covariates. Compared with the reference group of individuals with less than 9th grade, people with college graduate or above had an adjusted odds ratio (OR) of 0.464 (95% CI 0.361, 0.595, P < 0.0001). On the other hand, the statistically significant negative association disappeared among Mexican Americans, other races, separated, and high family poverty income ratio group. These results remained stable under a wide range of sensitivity analyzes.

CONCLUSION

Our study indicated the elevated education levels correlated with the decreased prevalence of depressive symptoms, and race, marital status, and family economic factors played a critical role in the relationship. This report reminds us to pay close attention to the further study of factors that affected the association between depressive symptoms and education levels.

LIMITATIONS

The cross-sectional study leaves problems about the direction of causality unclear.

Gender Differences in Depression and Quality of Life in Current and Abstinent Ketamine Users

Ketamine use has become of increasing concern because it has spread in many parts of the world during the past few years. Substance users usually have depression and a lower quality of life (QoL). The aim of this study was to explore depression and QoL in ketamine users, and to further examine the role of gender in relation to differences in depression and QoL in ketamine users. This study recruited 204 current ketamine users, 102 abstinent ketamine users and 102 healthy controls. The demographic data, severity of depression and QoL were recorded. Analysis of Variance (ANOVA) was employed to compare the associations of ketamine use status with depression and QoL. Gender differences were examined by moderator analysis. The current ketamine users with and without ketamine use disorder, in addition to the abstinent ketamine users with ketamine use disorder, have more severe depression and a lower QoL than healthy controls. There were significant gender differences in depression and QoL in abstinent ketamine users with ketamine use disorder. Ketamine users have more severe depression and a lower QoL. In particular, depression and a lower QoL are still prominent in abstinent ketamine users. The gender differences in depression and QoL are significant in abstinent ketamine users.

The therapeutic potential of GLP-1 analogues for stress-related eating and role of GLP-1 in stress, emotion and mood: a review

Stress and low mood are powerful triggers for compulsive overeating, a maladaptive form of eating leading to negative physical and mental health consequences. Stress-vulnerable individuals, such as people with obesity, are particularly prone to overconsumption of high energy foods and may use it as a coping mechanism for general life stressors. Recent advances in the treatment of obesity and related co-morbidities have focused on the therapeutic potential of anorexigenic gut hormones, such as glucagon-like peptide 1 (GLP-1), which acts both peripherally and centrally to reduce energy intake. Besides its appetite suppressing effect, GLP-1 acts on areas of the brain involved in stress response and emotion regulation. However, the role of GLP-1 in emotion and stress regulation, and whether it is a viable treatment for stress-induced compulsive overeating, has yet to be established. A thorough review of the pre-clinical literature measuring markers of stress, anxiety and mood after GLP-1 exposure points to potential divergent effects based on temporality. Specifically, acute GLP-1 injection consistently stimulates the physiological stress response in rodents whereas long-term exposure indicates anxiolytic and anti-depressive benefits. However, the limited clinical evidence is not as clear cut. While prolonged GLP-1 analogue treatment in people with type 2 diabetes improved measures of mood and general psychological wellbeing, the mechanisms underlying this may be confounded by associated weight loss and improved blood glucose control. There is a paucity of longitudinal clinical literature on mechanistic pathways by which stress influences eating behavior and how centrally-acting gut hormones such as GLP-1, can modify these. (250).

The Clinical Significance of Food Addiction

OBJECTIVES

The construct of food addiction has received increased attention and has been proposed as a mental disorder. There is some evidence that supports the inclusion of food addiction in the psychiatric nosology; however, the construct has not been sufficiently validated for inclusion. This study used the addiction syndrome model as a guiding theoretical framework to understand food addiction. The addiction syndrome model emphasizes the shared antecedents and consequences of addictions even though specific manifestations may differ.

METHODS

Participants were adult community members with food addiction (n = 26) or healthy controls (n = 26) as classified by the Yale Food Addiction Scale. Participants completed a battery of self-report questionnaires assessing cognitive, emotional, and behavioral domains often associated with addiction.

RESULTS

Results revealed that individuals with food addiction demonstrated significantly higher scores than healthy controls on depressive symptoms, emotion dysregulation, emotional eating, demand characteristics, motives, impulsivity, and family history of mental health problems and addiction, providing support for the clinical significance of food addiction.

CONCLUSIONS

Overall, this study replicates and extends previous findings, particularly in regard to behavioral economics and demand for food, providing further support for the consideration of food addiction in the psychiatric nosology.

Depression and its association with adverse childhood experiences in people with substance use disorders and comorbid medical illness recruited during medical hospitalization

AIMS

People who have experienced adverse childhood experiences (ACEs) are more susceptible to substance use disorder (SUD) and depression. The present study examined depression prevalence in hospitalized patients with SUD and examined the association of individual ACEs with major depression. Depression rates 3 months after discharge were also examined.

METHODS

Medical inpatients with SUD were recruited from Temple University Hospital. Depression was assessed using the Patient Health Questionnaire-9 (PHQ-9) at baseline and 3 months post-discharge. Participants were also assessed using an ACE scale at baseline.

RESULTS

Of 79 baseline participants, 48% (38) had moderate to severe major depressive disorder (MDD) with PHQ-9 scores ≥15. Among those with baseline MDD, 38% (9/24) continued to have MDD 3 months post discharge, and 42.9% (12/28) of those without MDD at baseline met criteria at 3 months. Sixty-three percent (50/79) of the participants reported 4+ ACEs at baseline. Two ACEs, Household Incarceration and Household Mental Illness, were significantly associated with having MDD at baseline and 3 months (adjusted mean PHQ-9 total score increase (SE) and p-value: 2.97 (1.35), p < .05; 5.32 (1.37), p < .005, respectively).

CONCLUSIONS

In this exploratory study, nearly half of medical inpatients with substance use disorder had moderate to severe major depression, with a similar percentage of participants having MDD as outpatients at 3 months. Approximately two thirds of participants reported four or more adverse childhood experiences at baseline. Inpatient medical hospitalization should be utilized as an opportunity to engage people with SUD in multidisciplinary treatment including psychiatric, trauma informed care, and substance abuse treatment.

Balancing act: Neural correlates of affect dysregulation in youth depression and substance use - A systematic review of functional neuroimaging studies

Both depression and substance use problems have their highest incidence during youth (i.e., adolescence and emerging adulthood), and are characterized by emotion regulation deficits. Influential neurodevelopmental theories suggest that alterations in the function of limbic and frontal regions render youth susceptible to these deficits. However, whether depression and substance use in youth are associated with similar alterations in emotion regulation neural circuitry is unknown. In this systematic review we synthesized the results of functional magnetic resonance imaging (fMRI) studies investigating the neural correlates of emotion regulation in youth depression and substance use. Resting-state fMRI studies focusing on limbic connectivity were also reviewed. While findings were largely inconsistent within and between studies of depression and substance use, some patterns emerged. First, youth depression appears to be associated with exaggerated amygdala activity in response to negative stimuli; second, both depression and substance use appear to be associated with lower functional connectivity between the amygdala and prefrontal cortex during rest. Findings are discussed in relation to support for existing neurodevelopmental models, and avenues for future work are suggested, including studying neurodevelopmental trajectories from a network perspective.

Correlates of alcohol and illicit drug use before commercial sex among transgender women with a history of sex work in China

Background Research on substance use among transgender female sex workers in China is scarce. The aims of this study were to examine: (1) the prevalence of alcohol or illicit drug use before commercial sex among this population; and (2) correlates of alcohol and illicit drug use. Methods: Complete survey data were analysed from 397 transgender female sex workers recruited from three of the largest cities in China: Shenyang, Shanghai and Guangzhou. Information was collected about demographics, alcohol or illicit drug use, alone or in combination, and their psychosocial correlates using structured questionnaires. Multinomial logistic regression models were used to examine the association between substance use and its correlates. Results: Before commercial sex, approximately one-third of the sample reported exclusive alcohol use (28.5%), 9.3% reported exclusive drug use and 7.3% reported combined use of alcohol and drugs. Before commercial sex, participants with low self-esteem had twice the odds of using alcohol exclusively (adjusted odds ratio (aOR) 2.05; 95% confidence interval (CI) 1.01–4.17), those with higher levels of loneliness had almost threefold the odds of exclusive drug use (aOR 2.92; 95% CI 1.21–7.07) and those with depression (aOR 2.97; 95% CI 1.11–7.96) and unknown HIV status (aOR 3.00; 95% CI 1.02–8.87) had threefold the odds of combined use of alcohol and drugs. Conclusion: Programs aimed at reducing alcohol or drug use among transgender female sex workers in China may consider adding components that help support mental health and encouraging HIV screening.

Sex-specific association of depressive disorder and transient emotional states with alcohol consumption in male and female alcoholics

BACKGROUND

We assessed the impact of comorbid depression and anxiety disorders as well as positive and negative emotional states on alcohol consumption in alcohol dependent men and women.

METHODS

Per day alcohol consumption during 90 days before enrolment was assessed by the Time Line Follow Back (TLFB) in 287 men and 156 women meeting DSM-IV-TR criteria for alcohol dependence. Propensity to drink in negative/positive emotional states was assessed using the Inventory of Drug Taking Situations (IDTS). Psychiatric comorbidities, including major depressive disorder (MDD), substance-induced depression (SID), anxiety disorders (AnxD), or substance-induced anxiety (SIA) were identified by Psychiatric Research Interview of Substance and Mood Disorders (PRISM).

RESULTS

In the combined group, increased number of drinks per day and number of heavy drinking days correlated with increased IDTS scores (all p < 0.0001), while the lifetime history of MDD was associated with fewer drinking days (p = 0.045) but not average number of drinks per day. Male sex was associated with higher alcohol consumption per day (p < 0.0001), but not with the number of drinking days (p > 0.05). Lifetime MDD history was associated with less drinking days (p = 0.0084) and less heavy drinking days (p = 0.021) in alcohol dependent men, while current MDD was associated with higher alcohol use per day in alcohol dependent women (p = 0.044).

CONCLUSIONS

Our findings suggest that emotional states and lifetime MDD history have sex-specific impact on alcohol use in alcohol dependent men and women. The mechanisms underlying these findings and their relevance to treatment outcomes need to be examined in future studies.

Both Ketamine and NBQX Attenuate Alcohol-Withdrawal Induced Depression in Male Rats

The co-morbidity between heavy drinking and depression can negatively influence successful cessation of alcohol use. Since ketamine, a glutamatergic NMDA receptor antagonist, has shown promise as a quick-acting antidepressant, we studied its effects specifically on alcohol withdrawal-induced depression. We also evaluated the effects of NBQX an AMPA/kainate receptor antagonist, because some of the effects of ketamine are proposed to be indirectly mediated through these receptors. Adult male Wistar rats were exposed daily to ethanol via inhalation chambers 4 h/day for 7 days (blood alcohol concentration=160 mg%), followed by daily intraperitoneal injections of ketamine (2.5 mg/kg), NBQX (5mg/kg), alone or in combination. Eighteen hours later, open field locomotor activity (OFLA) followed by forced swim test (FST) were performed. The animals were sacrificed 2 h later for evaluation of brain-derived neurotrophic factor (BDNF) in the hippocampus. Alcohol withdrawal did not affect OFLA, but caused an increase in immobility in FST, suggesting induction of "depressive-like" helplessness. Both ketamine and NBQX normalized the swimming score in FST. The combination of the two drugs, however, cancelled each other's effect. Parallel to these behavioral observations, both ketamine and NBQX normalized the reduction in hippocampal BDNF caused by alcohol withdrawal. Here also, the combination of the two drugs cancelled each other's effect. These results suggest that either NMDA or AMPA/kainate receptor antagonists, acting at least partially through hippocampal BDNF, may be of therapeutic potential in alcohol use disorder.

Substance Use Among Homeless Individuals With Schizophrenia and Bipolar Disorder

Mental illness and substance use are overrepresented within urban homeless populations. This paper compared substance use patterns between homeless individuals diagnosed with schizophrenia spectrum (SS) and bipolar disorders (BD) using the Mini-International Neuropsychiatric Interview. From a sample of 497 subjects drawn from Vancouver, Canada who participated in the At Home/Chez Soi study, 146 and 94 homeless individuals were identified as BD and SS, respectively. In the previous 12 months, a greater proportion of BD homeless reported greater use of cocaine (χ = 20.0, p = 0.000), amphetamines (χ = 13,8, p = 0.000), opiates (χ = 24.6, p = 0.000), hallucinogens (χ = 11.7, p = 0.000), cannabinoids (χ = 5.05, p = 0.034), and tranquilizers (χ = 7.95, p = 0.004) compared to SS. Cocaine and opiates were significantly associated with BD homeless (χ = 39.06, df = 2, p < 0.000). The present study illustrates the relationship between substance use and BD in a vulnerable urban population of homeless, affected by adverse psychosocial factors and severe psychiatric conditions.

Gender-specific effects of comorbid depression and anxiety on the propensity to drink in negative emotional states

BACKGROUND AND AIMS

Depression and anxiety are often comorbid with alcoholism and contribute to craving and relapse. We aimed to estimate the prevalence of life-time diagnoses of major depressive disorder (MDD), substance-induced depression (SID), anxiety disorder (AnxD) and substance-induced anxiety (SIA), the effects of these comorbidities on the propensity to drink in negative emotional states (negative craving), and test whether these effects differ by sex.

DESIGN

Secondary analyses of baseline data collected in a single-arm study of pharmacogenetic predictors of acamprosate response.

SETTING

Academic medical center and affiliated community-based treatment programs in the American upper mid-west.

PARTICIPANTS

A total of 287 males and 156 females aged 18-80 years, meeting DSM-IV criteria for alcohol dependence.

MEASUREMENTS

The primary outcome measure was 'propensity to drink in negative emotional situations' (determined by the Inventory of Drug Taking Situations) and the key predictors/covariates were sex and psychiatric comorbidities, including MDD, SID, AnxD and SIA (determined by Psychiatric Research Interview of Substance and Mood Disorders).

FINDINGS

The prevalence of the MDD, SID and AnxD was higher in females compared with males (33.1 versus 18.4%, 44.8 versus 26.4% and 42.2 versus 27.4%, respectively; P < 0.01, each), while SIA was rare (3.3%) and did not differ by sex. Increased propensity to drink in negative emotional situations was associated with comorbid MDD (β = 6.6, P = 0.013) and AnxD (β = 4.8, P = 0.042) as well as a SID × sex interaction effect (P = 0.003), indicating that the association of SID with propensity to drink in negative emotional situations differs by sex and is stronger in males (β = 7.9, P = 0.009) compared with females (β = -6.6, P = 0.091).

CONCLUSIONS

There appears to be a higher prevalence of comorbid depression and anxiety disorders as well as propensity to drink in negative emotional situations in female compared with male alcoholics. Substance-induced depression appears to have a sex-specific effect on the increased risk for drinking in negative emotional situations in males.

Exercise training - A beneficial intervention in the treatment of alcohol use disorders?

BACKGROUND

A growing body of evidence suggests that exercise training may have multiple beneficial effects in individuals with mental health or substance use disorders. Yet, relatively little knowledge exists regarding the benefits of exercise training to augment treatment for alcohol use disorders (AUDs).

PURPOSE

The purpose of this narrative review is to present a summary of the growing body of published literature supporting exercise training as a treatment strategy for individuals with AUDs. We will provide evidence on the myriad of ways in which exercise may exert a positive effect on AUD outcomes including stress, anxiety, impulsivity, and depression. Further, we will explore how these mechanisms share common neurobiological pathways. The role of exercise in enhancing the social environment and increasing individual self-efficacy to reduce excess and/or inappropriate alcohol consumption will also be discussed.

DISCUSSION

We will conclude with a description of completed investigations involving exercise training and provide suggestions for next steps in this innovative field of study.

The continuing care model of substance use treatment: what works, and when is "enough," "enough?"

There is little disagreement in the substance use treatment literature regarding the conceptualization of substance dependence as a cyclic, chronic condition consisting of alternating episodes of treatment and subsequent relapse. Likewise, substance use treatment efforts are increasingly being contextualized within a similar disease management framework, much like that of other chronic medical conditions (diabetes, hypertension, etc.). As such, substance use treatment has generally been viewed as a process comprised of two phases. Theoretically, the incorporation of some form of lower intensity continuing care services delivered in the context of outpatient treatment after the primary treatment phase (e.g., residential) appears to be a likely requisite if all stakeholders aspire to successful long-term clinical outcomes. Thus, the overarching objective of any continuing care model should be to sustain treatment gains attained in the primary phase in an effort to ultimately prevent relapse. Given the extant treatment literature clearly supports the contention that treatment is superior to no treatment, and longer lengths of stay is associated with a variety of positive outcomes, the more prudent question appears to be not whether treatment works, but rather what are the specific programmatic elements (e.g., duration, intensity) that comprise an adequate continuing care model. Generally speaking, it appears that the duration of continuing care should extend for a minimum of 3 to 6 months. However, continuing care over a protracted period of up to 12 months appears to be essential if a reasonable expectation of robust recovery is desired. Limitations of prior work and implications for routine clinical practice are also discussed.

Alcohol Use is Not Directly Related to the Perceived Control of Depressive Symptoms in Patients with Depressive Symptoms

Treatment-seeking patients (N = 233) were recruited as they started a course of relapse prevention and coping with depression. The mean Beck depression inventory (BDI-II) score was 26 points, indicating a moderate degree of depression. The sample was recruited from different outpatient clinics and screened for alcohol-related problems with the alcohol use disorders identification test (AUDIT). Almost half of the total sample had a score on AUDIT >8 indicating an alcohol problem. The participants in this study did not undergo a clinical interview to check out if their symptoms, as assessed with BDI-II and AUDIT, were part of a formal diagnosis in accordance with the criteria in ICD 10 or DSM IV. A specific instrument, perceived uncontrollability of depression (UNCONTROL), was used to measure the persons' perceived control of depressive symptoms; a set of statements about coping with depressive symptoms where high scores indicate lack of coping with the symptoms. Alcohol problems were not found to be significantly associated with the perceived control of ongoing depressive symptoms and did not moderate the relationship between depressive symptoms and the perceived control of depressive symptoms. The results question the assumption that alcohol use is related to coping with depressive symptoms in patients with alcohol abuse and depressive symptoms.

Pathological and problem gambling in substance use treatment: a systematic review and meta-analysis

Pathological and problem gambling refer to a class of disorders, including those meeting criteria for a psychiatric diagnosis (i.e., pathological gambling), and others comprising a spectrum of severity defined by significant personal and social harm (i.e., problem gambling), that may be common in substance use treatment but are frequently unrecognized. This paper presents a systematic review and meta-analysis of available evidence indicating the prevalence of such gambling disorders in substance use treatment. It provides weighted mean estimates from across studies of clinical samples of substance users, and suggests around 14% of patients that demonstrate comorbid pathological gambling. Around 23% suffer conditions along the broader spectrum of problem gambling. The review also highlights important limitations of existing evidence, including scant data on current versus lifetime comorbidity, as well as reliance on convenience samples and self-administered measures of gambling problems. Notwithstanding a concomitant need for caution when applying these results, the findings suggest a strong need to identify and manage gambling comorbidity in substance use treatment. Strategies for identification of gambling disorders, and therapies that may provide useful adjunctive interventions in substance use treatment are discussed.

Understanding the etiology of prescription opioid abuse: implications for prevention and treatment

Although studies on the initiation of substance abuse abound, the body of literature on prescription opioid abuse (POA) etiology is small. Little is known about why and how the onset of POA occurs, especially among high-risk populations. In this study we aimed to fill this important knowledge gap by exploring the POA initiation experiences of 90 prescription opioid abusers currently in treatment and their narrative accounts of the circumstances surrounding their POA onset. This research was conducted within a storyline framework, which operates on the premise that the path to drug abuse represents a biography or a process rather than a static condition. Audiotapes of in-depth interviews were transcribed, coded, and thematically analyzed. Analyses revealed the presence of four trajectories leading to POA. This study adds to the limited research on POA etiology by not only illuminating the psychosocial factors that contribute to POA onset, but also by situating initiation experiences within broader life processes. The study findings provide crucial insights to policymakers and interventionists in identifying who is at risk for POA, and more important, when and how to intervene most efficaciously.

Gender differences in symptomatic profiles of depression: results from the São Paulo Megacity Mental Health Survey

BACKGROUND

Few studies have investigated symptomatic subtypes of depression and their correlates by gender.

METHODS

Data are from the São Paulo Megacity Mental Health Survey. Symptom profiles of 1207 subjects (864 women; 343 men) based upon symptoms of the worst depressive episode in lifetime were examined through latent class analysis. Correlates of gender-specific latent classes were analyzed by logistic regression.

RESULTS

For both men and women, a 3-class model was the best solution. A mild class was found in both genders (41.1% in women; 40.1% in men). Gender differences appeared in the most symptomatic classes. In women, they were labeled melancholic (39.3%) and atypical (19.5%), differing among each other in somatic/vegetative symptoms. The melancholic class presented inhibition and eating/sleeping symptoms in the direction of decreasing, whereas the atypical class had increased appetite/weight, and hypersomnia. For men, symptoms that differentiate the two most symptomatic classes were related to psychomotor activity: a melancholic/psychomotor retarded (40.4%) and agitated depression (19.6%). The highest between-class proportion of agitation and racing thoughts was found among men in the agitated class, with similarity to bipolar mixed state.

LIMITATIONS

Analyses were restricted to those who endorsed questions about their worst lifetime depressive episode; the standardized assessment by lay interviewers; the small male sample size.

CONCLUSIONS

The construct of depression of current classifications is heterogeneous at the symptom level, where gender different subtypes can be identified. These symptom profiles have potential implications for the nosology and the therapeutics of depression.

Trait aggression, depression and suicidal behavior in drug dependent patients with and without ADHD symptoms

The objective of this study was to investigate trait-aggression, depression and suicidal behavior of drug dependent patients with and without ADHD symptoms. The cross sectional survey was conducted in outpatient drug centers in Hungary. The Adult Self-Report Scale (ASRS), the Buss-Perry Aggression Questionnaire (AQ), the European Version of the ADolescent Assessment Dialogue (EuroADAD), and the Beck Depression Inventory (BDI) were used for measures. GLM analyses, adjusting for age and gender, indicated that patients who screened positive for ADHD (ADHD+ group) had significantly higher severity of overall trait aggression, as well as physical and verbal aggression than patients who did not (ADHD negative group). The highest severity of aggression was observed when the ADHD+ status co-occurred with heroin use, while the lowest severity of aggression was detected when ADHD- status co-occurred with the use of marijuana. ADHD+ patients showed a marked increase in depression symptoms, suicidal ideation, suicidal attempts as well as self-injuries associated with suicidal attempts. Considering the substantial costs of aggression and suicide from a societal perspective and from the point of view of the individual sufferer, our results highlight the importance of the diagnostic investigation of ADHD in the treatment of drug dependent patients.

Prevalence and determinants of personality disorders in a clinical sample of alcohol-, drug-, and dual-dependent patients

The present study compares the prevalence rates of 12 personality disorders (PDs) among patients with alcohol, drug, and dual dependence through chi-square tests and analyses of variance. It further investigates possible predictors of these PDs through multiple linear regression analyses. Data were gathered in 2007-2008 among 274 patients admitted to intensive, residential substance abuse treatment programs in Belgium, using the ADP-IV (Assessment of DSM-IV Personality Disorders), the EuropASI (European version of the Addiction Severity Index), and the MINI (Mini International Neuropsychiatric Interview). The analyses showed that drug- and dual-dependent patients have higher PD prevalence rates than alcohol-dependent patients. The severity, but not the nature of the dependence, appears as an important predictor for personality pathology.

Induction of innate immune genes in brain create the neurobiology of addiction

Addiction occurs through repeated abuse of drugs that progressively reduce behavioral control and cognitive flexibility while increasing limbic negative emotion. Recent discoveries indicate neuroimmune signaling underlies addiction and co-morbid depression. Low threshold microglia undergo progressive stages of innate immune activation involving astrocytes and neurons with repeated drug abuse, stress, and/or cell damage signals. Increased brain NF-κB transcription of proinflammatory chemokines, cytokines, oxidases, proteases, TLR and other genes create loops amplifying NF-κB transcription and innate immune target gene expression. Human post-mortem alcoholic brain has increased NF-κB and NF-κB target gene message, increased microglial markers and chemokine-MCP1. Polymorphisms of human NF-κB1 and other innate immune genes contribute to genetic risk for alcoholism. Animal transgenic and genetic studies link NF-κB innate immune gene expression to alcohol drinking. Human drug addicts show deficits in behavioral flexibility modeled pre-clinically using reversal learning. Binge alcohol, chronic cocaine, and lesions link addiction neurobiology to frontal cortex, neuroimmune signaling and loss of behavioral flexibility. Addiction also involves increasing limbic negative emotion and depression-like behavior that is reflected in hippocampal neurogenesis. Innate immune activation parallels loss of neurogenesis and increased depression-like behavior. Protection against loss of neurogenesis and negative affect by anti-oxidant, anti-inflammatory, anti-depressant, opiate antagonist and abstinence from ethanol dependence link limbic affect to changes in innate immune signaling. The hypothesis that innate immune gene induction underlies addiction and affective disorders creates new targets for therapy.

Depressive symptoms and patterns of drug use among street youth

PURPOSE

Rates of depression among street youth are poorly characterized, particularly as they pertain to concurrent drug use. We sought to assess associations between drug type and degree of depression in this population.

METHODS

Between October 2005 and November 2007, data were collected from a cohort of street-recruited youth aged 14-26 residing in Vancouver, Canada, for the At-Risk Youth Study. Active drug users were classified by predominant substance of use: daily marijuana use, weekly cocaine/crack use, weekly crystal methamphetamine use, or weekly heroin use. Adjusted mean number of depressive symptoms (measured by the Center for Epidemiological Studies Depression [CES-D] scale) was compared among the four groups using multiple linear regression. Logistic regression was also used to assess adjusted odds of CES-D score ≥ 22.

RESULTS

Among 447 youth, mean CES-D score was the highest among heroin users (adjusted mean: 22.7; standard deviation [SD]:1.2), followed by crystal methamphetamine users (adjusted mean: 21.8; SD: 1.1), then cocaine and/or crack users (adjusted mean: 19.1; SD: 1.0), and finally, marijuana users (adjusted mean: 18.3; SD: 1.1), resulting in a difference that was significant among groups (p < .001). When compared with daily marijuana users, odds of CES-D score ≥ 22 were higher among heroin users (adjusted odds ratio [AOR]: 2.64; 95% confidence interval [CI]: 1.39-4.99) and crystal methamphetamine users (AOR: 1.88; 95% CI: 1.04-3.42), but not among cocaine/crack users (AOR: 1.41; 95% CI: .79-2.52).

CONCLUSION

To our knowledge, this is the first report of drug use typologies and depression among street youth. Policymakers might heed the apparent vulnerability of heroin and crystal methamphetamine users to even greater degrees of depression than their peers.

Alcohol consumption and later risk of hospitalization with psychiatric disorders: prospective cohort study

The potential effects of alcohol intake upon the risk of psychiatric disorders have not often been investigated. The purpose of this study was to investigate, in a population sample, the association between self-reported amount of alcohol intake and the later risk of being registered in a Danish hospital with a psychiatric disorder. The prospective cohort study, the Copenhagen City Heart Study (n=18,146), was used, containing three updated sets of alcohol intake and lifestyle covariates and up to 26 years follow-up. Alcohol intake was measured by self-report while psychiatric disorders were measured through registers. For women, the overall pattern showed that drinking above the sensible limits increased the risk of psychiatric disorders in general, especially for anxiety disorders where women drinking above the sensible drinking limits had a risk of 2.00 (confidence interval: 1.31-3.04) compared to women drinking below the sensible drinking limits. For men, the risk functions were slightly U-shaped; thus, a weekly low or moderate alcohol intake seemed to have a protective effect towards developing psychiatric disorders. The findings suggest sex differences in the association between alcohol consumption and risk of psychiatric disorders.

Uni-morbid and co-occurring marijuana and tobacco use: examination of concurrent associations with negative mood states

The aim of the current investigation was to examine uni-morbid and co-occurring tobacco and marijuana use in relation to the negative emotional symptoms of anxiety and depression. Participants were 250 adult individuals (132 women; mean age = 22.43 years, standard deviation = 9.00 years) who were divided into one of four non-overlapping substance use categories: tobacco use only (n = 39), marijuana use only (n = 62), co-occurring tobacco and marijuana use (n = 82), and neither tobacco nor marijuana use (n = 67). Results revealed three key findings. First, tobacco-only using individuals reported significantly greater negative affectivity than any of the other groups. Second, tobacco-only users reported greater anxious arousal symptoms than either the marijuana or non-substance use groups, but not the combined group. Third, tobacco-only users reported greater levels of depressive symptoms than either marijuana users or non-substance users. These findings provide novel information about tobacco and marijuana use and how these variables relate to the experience of general and specific types of negative emotional symptoms.

Exploring the mediational role of coping motives for marijuana use in terms of the relation between anxiety sensitivity and marijuana dependence

This study evaluated the prediction that coping motives for marijuana use would mediate the relation between anxiety sensitivity and a marijuana dependence diagnosis after controlling for other co-occurring marijuana use motives. Participants were 136 current marijuana users (47.1% women; M(age)= 21.9, SD = 7.2). Results were consistent with a mediational effect, with the relation between anxiety sensitivity and marijuana dependence being explained by the addition of coping motives into the model. These results provide novel information related to the putative explanatory role of coping motives for marijuana use in the relation between anxiety sensitivity and marijuana dependence.

Comorbidity and temporal ordering of alcohol use disorders and other psychiatric disorders: results from a Danish register-based study

BACKGROUND

Understanding the comorbidity of alcohol use disorders (AUD) and other psychiatric disorders may have important implications for treatment and preventive interventions. However, information on the epidemiology of this comorbidity is lacking. The objective of this study was to present results on lifetime psychiatric comorbidity of AUD in a large Danish community population.

METHODS

A prospective cohort study was used, comprising 3 updated measures of sets of lifestyle covariates and 26 years of follow-up data on 18,146 individuals from the Copenhagen City Heart Study, Denmark. The study population was linked to national Danish hospital registers and a greater Copenhagen alcohol unit treatment register to detect registrations with AUD and other psychiatric disorders.

RESULTS

Of the individuals invited to the study, 7.6% were registered with AUD, and among these, 50.3% had a lifetime comorbid psychiatric disorder. Personality disorders were the most common comorbid disorders (24%) together with mood disorders (16.8%) and drug abuse (16.6%). The risk of developing a psychiatric disorder in individuals who were already registered with AUD was larger than the risk of developing AUD in individuals who were already registered with another psychiatric disorder; these differences in risk were especially noticeable for anxiety disorders, personality disorders, and drug abuse.

CONCLUSIONS

AUD is frequently comorbid with other psychiatric disorders, and it is likely that AUD is both an etiologic factor in other mental disorders and a consequence of mental disease. However, in interpreting these complex and perhaps circular causal links, it is important to consider that AUD is registered before a comorbid psychiatric diagnosis more often than the reverse temporal order.

Comorbid psychiatric disorders in substance dependence patients: A control study

BACKGROUND

The purpose of this study was to investigate the comorbidity of mental disorders among a random sample of substance dependence patients from a psychiatric inpatients department and the general population.

MATERIALS AND METHODS

Comprehensive data was collected from inpatients with substance abuse/dependence and comorbidity of mental disorders at the Ranchi Institute of Neuropsychiatry and Allied Sciences (RINPAS) and from normal controls from the general population during the period January 2007 to May 2007.

RESULTS

The results show that the most prevalent comorbid disorders in substance dependence patients and substance abusers were depressive disorders.

CONCLUSIONS

The majority of substance dependence patients suffered from comorbid mental disorders. Comorbidity needs to be taken into account when analyzing the relationship between substance dependence and depression and in planning treatment strategies for comorbid conditions.

Demographic, socioeconomic, and psychological factors related to medication non-adherence among emergency department patients

BACKGROUND

Many Emergency Department (ED) visits are related to medication non-adherence; however, the contributing factors are poorly understood.

OBJECTIVES

To explore the relative contributions of demographic, socioeconomic, and psychological factors to medication non-adherence in an ED population.

METHODS

This was a cross-sectional analysis enrolling patients with one of three illnesses requiring chronic medication usage (hypertension, diabetes, or seizures). Trained research associates administered a 60-item survey that assessed demographic and socioeconomic information, as well as a variety of psychological factors potentially relevant to adherence (health attitudes, health beliefs, depression, anxiety, social support, and locus of control). Patients rated their overall prescription medication adherence and estimated the number of days in the preceding month on which doses were missed. In addition, treating physicians estimated the degree to which the ED visit was related to medication non-adherence; clinical data were abstracted to help validate patient and physician assessments. The relationships between non-adherence and demographic, socioeconomic, and psychological variables were explored using multivariate statistics and logistic regression. Covariance analysis was performed to validate subscales, and receiver-operator curves were used to define optimal threshold values.

RESULTS

A total of 472 patients consented to participate, with good representation for various demographic and socioeconomic groups. Each psychological factor related significantly to both patient and physician ratings of non-adherence (p < 0.05). Of all demographic and socioeconomic factors examined, only current or historical drug use predicted non-adherence.

CONCLUSIONS

Psychological factors seem to be important determinants of medication non-adherence among ED patients. These data may help define future research directions and interventions.

Patterns of methamphetamine use and symptoms of depression among young adults in northern Thailand

INTRODUCTION

Depression often co-occurs with amphetamine type stimulant use and can negatively impact drug treatment outcomes. Understanding the temporal relationship between depressive symptoms and methamphetamine use can further inform both treatment and mental health options.

METHODS

Methamphetamine users aged 18-25 years were enrolled in a 12-month randomized behavioral trial in Thailand. Questionnaires were administered every 3 months and included information on substance use and depressive symptoms. Pattern of methamphetamine use during follow-up was characterized into four groups: early cessation, late cessation, relapse and persistent use. Multinomial logistic regression was used to determine the impact of baseline depressive symptoms (CES-D score and % > or =22) on patterns of methamphetamine use during follow-up. Linear and logistic regression was used to determine the impact of patterns of methamphetamine use on depressive symptoms at the end of the trial.

RESULTS

No association was found between baseline depressive symptoms and subsequent patterns of methamphetamine use. A significant relationship was found between patterns of methamphetamine use and ensuing depressive symptoms, with those achieving cessation experiencing lower levels of depressive symptoms.

DISCUSSION

Many symptoms of depression may resolve with cessation or reduction in methamphetamine use. Clinical and community-based efforts that facilitate drug users' attempts to stop using drugs should be supported as they may contribute to positive cessation outcomes and help to improve overall mental health.

Depressed mood in childhood and subsequent alcohol use through adolescence and young adulthood

CONTEXT

Despite prior evidence supporting cross-sectional associations of depression and alcohol use disorders, there is relatively little prospective data on the temporal association between depressed mood and maladaptive drinking, particularly across extended intervals.

OBJECTIVE

To assess the association between depressed mood in childhood and alcohol use during adolescence and young adulthood by mood level and sex and race/ethnicity subgroups.

DESIGN

Cohort study of individuals observed during late childhood, early adolescence, and young adulthood.

SETTING

Urban mid-Atlantic region of the United States.

PARTICIPANTS

Two successive cohorts of students from 19 elementary schools have been followed up since entry into first grade (1985, cohort I [n = 1196]; 1986, cohort II [n = 1115]). The students were roughly equally divided by sex (48% female) and were predominantly African American (70%). Between 1989 and 1994, annual assessments were performed on students remaining in the public school system, and between 2000 and 2001, approximately 75% participated in an interview at young adulthood (n = 1692).

MAIN OUTCOME MEASURES

Among participants who reported having used alcohol, Cox and multinomial regression analyses were used to assess the association of childhood mood level, as measured by a depression symptom screener, with each alcohol outcome (incident alcohol intoxication, incident alcohol-related problems, and DSM-IV alcohol abuse and dependence).

RESULTS

In adjusted regression analyses among those who drank alcohol, a high level of childhood depressed mood was associated with an earlier onset and increased risk of alcohol intoxication, alcohol-related problems during late childhood and early adolescence, and development of DSM-IV alcohol dependence in young adulthood.

CONCLUSIONS

Early manifestations associated with possible depressive conditions in childhood helped predict and account for subsequent alcohol involvement extending across life stages from childhood through young adulthood.

Dual Substance Abusers Seeking Treatment: Demographic, Substance-Related, and Treatment Utilization Characteristics

High comorbidity exists between alcohol and drug-related disorders. However, little information is available on characteristics of clients abusing both alcohol and illicit drugs (so-called dual substance abusers). The proportion of dual substance abusers and their characteristics are examined in a sample of 1,626 clients seeking treatment in one of the 16 participating centers in the province of Antwerp (Belgium). More than a quarter of all clients were identified as dual substance abusers. Their characteristics correspond better to those of drug abusers than to those of alcohol abusers, but compared to the former, they are younger, more often male, use more types of illicit substances and more often use stimulating substances. Alcohol is often underestimated in substance use patterns. Thorough alcohol assessment, early intervention, and preventive actions are needed within the drug treatment system, and closer collaboration with the alcohol treatment system is absolutely essential.

Positron emission tomography study of regional brain metabolic responses to a serotonergic challenge in major depressive disorder with and without comorbid lifetime alcohol dependence

This is the first study contrasting regional glucose metabolic rate (rCMRglu) responses to a serotonergic challenge in major depressive disorder (MDD) with and without comorbid alcohol dependence. In a university hospital, patients with MDD without a history of alcohol dependence (MDD only) and patients with MDD and comorbid alcohol dependence (MDD/ALC) were enrolled in this study. Subjects with comorbid borderline personality disorder were excluded. A bolus injection of approximately 5 mCi of (18)fluorodeoxyglucose was administered 3 h after the administration of placebo or fenfluramine. We found an anterior medial prefrontal cortical area where MDD/ALC subjects had more severe hypofrontality than MDD only patients. This area encompassed the left medial frontal and left and right anterior cingulate gyri. This group difference disappeared after fenfluramine administration. The fact that the observed group difference disappeared after the fenfluramine challenge suggests that serotonergic mechanisms play a role in the observed differences between the groups.

Depression as measured by the Beck Depression Inventory-II among injecting drug users

This study conducts a confirmatory factor analysis of the Beck Depression Inventory-II (BDI-II) with a sample of 598 individuals who reported recent injecting drug use. Findings indicate that out of four models tested, the best model for this sample is a three-factor solution (somatic, affective, and cognitive) previously reported by Buckley, Parker, and Heggie. The findings that nearly 50% of participants provided BDI-II scores indicating significant depressive symptomatology reveals that these individuals are in need of treatment for their psychiatric symptoms as well as substance use. Somatic symptoms are endorsed more strongly than affective or cognitive symptoms of depression, suggesting a possible, but yet poorly defined, relationship between depressive symptomatology and drug use that centers on shared somatic symptomatology.

Relapse to alcohol and drug use among individuals diagnosed with co-occurring mental health and substance use disorders: a review

This paper reviews the literature investigating relapse to alcohol and drug use among individuals dually diagnosed with a substance use and a co-occurring mood, anxiety, schizophrenia-spectrum, or personality disorder. Prevalence rates for each co-occurring set of disorders are discussed, followed by research studies that examine predictors of relapse to substance use within these groups. Relevant conceptual models well-suited to incorporating relapse as an outcome variable, and psychiatric factors both as predictor and outcome variables, are presented. Suggestions for future studies are provided. A priority area is developing and using consistent and well-articulated definitions of relapse across studies. Several diagnostic issues surfaced such as using structured clinical interviews to determine diagnosis (preferably following detoxification from alcohol and/or drugs), separating individuals with only alcohol use disorders from those with alcohol and drug use disorders in analyses, reporting the rates and types of overlap in mental health diagnoses, and conducting analyses that include and exclude multiply disordered individuals. Finally, future studies that focus on isolating predictors of relapse and abstinence could make substantive contributions to improving treatment for individuals with co-occurring substance use and mental health disorders.

The Effects of Alcohol and Drug Dependence on the Course of Depression

There is a paucity of epidemiological data regarding the effects of substance use dependence (SUD) on the course of depression. This study analyzed data from the National Comorbidity Survey (NCS). Among respondents with lifetime SUD and unipolar depression, current SUD increased the risk (OR = 2.9) of past year depression and anxiety disorders (OR = 2.2).

Alcohol consumption as a risk factor for anxiety and depression: results from the longitudinal follow-up of the National Psychiatric Morbidity Survey

BACKGROUND

Longitudinal studies have been in conclusive in identifying alcohol as a risk factor for anxiety and depression.

AIMS

To examine whether excessive alcohol consumption is a risk factor for anxiety and depression in the general population, and whether anxiety and depression are risk factors for excessive alcohol consumption.

METHOD

Data were analysed from the 18-month follow-up of the Psychiatric Morbidity Among Adults Living in Private Households, 2000 survey.

RESULTS

Hazardous and dependent drinking were not associated with onset of anxiety and depression at follow-up. Binge-drinking was non-significantly associated with incident anxiety and depression (adjusted OR=1.36, 95% CI 0.74-2.50). Abstainers were less likely to have new-onset anxiety and depression at follow-up. Anxiety and depression or sub-threshold symptoms at baseline were not associated with incident hazardous or binge-drinking at follow-up, but there was weak evidence linking sub-threshold symptoms with onset of alcohol dependence (adjusted OR=2.04, 95% CI 0.84-4.97).

CONCLUSIONS

Excessive alcohol consumption was not associated with the onset of anxiety and depression but abstinence was associated with a lower risk. Sub-threshold symptoms were weakly associated with new-onset alcohol dependence.

Depression syndromes with risk of alcohol dependence in adulthood: a latent class analysis

Using prospectively gathered data, we assessed whether depression is associated a risk for late-onset alcohol dependence, and whether that relationship differed by gender. The baseline interview was completed in 1981 (mean age=41.7 years, standard deviation (S.D.)=17.0, range 18-86) on a probability sample of Baltimore residents as part of the Epidemiologic Catchment Area Program. Between 1993 and 1996, the original cohort was traced (73% of the survivors were re-interviewed, n=1920). Baseline depression items were subjected to gender-specific latent class analyses prior to exploring associations between class membership and two classifications of alcohol dependence: (1) lifetime prevalence, and (2) new onset assessed at follow-up. A depression syndrome class was identified (24% of the females and 20% of the males). The odds of lifetime alcohol dependence among those in the depressive syndrome class was significantly elevated for both sexes, relative to the non-depressed class. However, no appreciable association was found for depressive syndrome with the development of alcohol dependence. In this sample of middle-aged adults, the evidence supports an association for the presence of a depressive syndrome with lifetime alcohol dependence, but not for the new onset of alcohol dependence. Other predictors of alcohol dependence identified in the analyses are discussed.

Predictors of current depressive symptoms in a sample of drug court participants

Interviews, completed between March 2000 and November 2002 with Kentucky drug court participants in Lexington and Bowling Green (N = 500), participated in a cross-sectional analysis examining the associations between self-reported, current depressive symptoms and various personal characteristics and experiences from the period before drug court involvement. Depressive symptoms were measured with the Brief Symptom Inventory (BSI), and potential correlates were derived from the Addiction Severity Index (ASI), 1992 version. BSI depression scores indicated minimal-to-moderate symptoms, with a mean individual score of 0.73, on a scale from none (0) to extreme (4) symptom strength. Numerous predictor variables were significantly associated, but multiple regression analysis identified five variables as independent correlates of depressive symptoms: 1) poorer self-rated health, 2) having ever been treated in a hospital for psychological or emotional problems, 3) being troubled by family problems in the 6 months before drug court, 4) having had conflicts with nonfamily others in the 6 months before drug court, and 5) being female. If confirmed by future, prospective research, the five variables found by the multiple regression analysis may be useful in identifying and more adequately treating substance abusers with symptoms of depression.

Neurobiological mechanisms in addictive and psychiatric disorders

The studies reviewed indicate that brain stress system play an important role in the acquisition and maintenance of drugs of abuse that target the brain's reward centers. In doing so, they may destabilize these areas, making the perception of pleasure more elusive and difficult to attain. Withdrawal from drugs of abuse leads to the activation of brain CRF systems that may produce the anxiogenic response associated with drug withdrawal. More research, however, is needed to investigate the role of brain stress systems and neuropeptides in other drug withdrawal symptoms such as anhedonia. A better understanding of the brain systems underlying drug withdrawal may help in the development of improved pharmacotherapies that can alleviate drug withdrawal symptoms. The second part of the article indicated that there is a very high comorbidity between depression and drug dependence. The reviewed studies suggest that depressed patients initiate drug-taking behavior to self-medicate the symptoms associated with their psychiatric disorder. Chronic use of drugs of abuse, however, may exacerbate the symptoms of pre-existing mental disorders and subsequently increase drug-taking behavior. Conversely, professional treatment of pre-existing psychiatric disorders may decrease the use of illicit substances.

Antidepressant treatment of co-occurring depression and alcohol dependence

The use of antidepressant pharmacotherapy to treat patients with co-occurring depression and alcohol dependence is controversial. There is a stigma attached to giving medications to alcohol-dependent persons. Also, empirical evidence is sparse and inconsistent, which discourages the use of antidepressants in these patients. Historically, it has been a challenge to accurately diagnose a depressive disorder in the presence of alcohol dependence. In addition, early clinical studies were fraught with methodological problems; however, improved diagnostic assessments are now available, and in the last decade, results from well-controlled trials appear to support the use of antidepressants in this patient population in the specific role of relieving depressive symptoms. The majority of these trials also demonstrate that antidepressants have relatively little impact on reducing heavy drinking in this patient population, even though the medications reduce depressive symptoms. Newer approaches to treating patients with co-occurring depression and alcohol dependence suggest adding to the antidepressant a pharmacotherapy that directly impacts drinking. The findings from this review better define the action of antidepressants in patients with co-occurring depression and alcohol dependence as specific to reducing depressive symptoms, and these medications and their action on mood have little impact on treating the co-occurring alcohol dependence.

The comorbidity of substance abuse and depressive symptoms in Costa Rican adolescents

Patterns of comorbidity between depressive symptoms and substance use were examined simultaneously in community and clinical-based samples of 5268 Costa Rican adolescents, ages 12-20, through a series of descriptive, ANCOVA and logistic regression analyses. Groups surveyed included high school students, street youth, and youth in treatment for substance abuse problems. Results revealed significant group differences in substance use and significant correlations between depressive symptoms and problems with alcohol and drugs. The association between depressive symptoms and overall substance use involvement was significant for all youth, but strongest for female street youth. Logistic regression analyses revealed that depressive symptoms were associated with increased odds of specific substance use for all three groups, though in the case of street youth and youth in treatment, these associations only were observed in males. Analyses of covariance indicated that problems with drugs and alcohol differed across group and sex. Youth in treatment had more problems with drugs and alcohol than other groups. Among street youth, males had more problems with drugs than females. This study provides a unique cross-cultural perspective on the comorbidity of depression and substance use among youth, and allows for comparative analyses between community and clinical-based participants.

Personality profile and drug of choice; a multivariate analysis using Cloninger's TCI on heroin addicts, alcoholics, and a random population group

As personality may predispose, precipitate or perpetuate substance abuse and/or dependence, and as it is considered to remain stable across the years in a given subject, potential links with the drug of choice may help screen future patients before drug consumption. The present study compared three groups: 42 patients with heroin dependence (mean age: 31.2; standard deviation (SD): 5.5; 10 females), 37 patients with alcohol dependence (mean age 44.2; SD: 9.1; 9 females) and 83 subjects from a random population sample (mean age: 38.8; SD: 6.9; 20 females). Personality was measured by Cloninger's Temperament and Character Inventory (TCI). Pillai's MANCOVA with age as a covariate and gender as a cofactor was highly significant. Univariate ANOVA analyses using TCI dimensions as dependent variable showed most variables to vary in parallel for the two patient groups in comparison with controls. Post-hoc tests showed heroin patients to score higher in Novelty-Seeking and Self-Directedness than alcohol patients. Sub-dimensions Exploratory Excitability, Fear of the Uncertain, Responsibility, Congruent Second Nature and Transpersonal Identification were also significantly different in the two patient samples. Logistic regression showed Exploratory Excitability to segregate up to 76% of heroin patients from alcohol patients. In conclusion, personality profiles were linked to some preferential choice of drug and personality screening might be tested in preventive strategies.

A comparison of pathological gamblers with and without substance abuse treatment histories

This study evaluated the prevalence and correlates of substance abuse histories in 341 consecutive admissions to gambling treatment programs. After controlling for gender, income, and site, gamblers with substance abuse treatment histories (SATH; 31%) had more severe problems than gamblers with no substance abuse treatment histories (NSATH) on the Gambling, Alcohol, Drug, Psychiatric, and Employment scales of the Addiction Severity Index. The SATH group had more years of gambling problems and gambled more days in the month prior to initiating gambling treatment. The SATH gamblers were also more likely to be receiving treatment for mental health problems and reported greater lifetime psychiatric distress than NSATH gamblers. These data suggest that pathological gamblers with substance abuse treatment histories may present more persistent and severe gambling dysfunction and psychiatric problems than those without such histories.