Effects of acute psychosocial stress on cigarette craving and smoking

Nicotine addiction and the influence of life adversity and acute stress on PYY: Prediction of early smoking relapse

Early life adversity (ELA) is associated with earlier initiation and maintenance of tobacco smoking and with a greater risk of subsequent relapse. There is growing evidence that appetite hormones, including peptide YY (PYY), which modulates craving and satiety responses, play a role in stress and addiction processes. This study employed a quasi-experimental design to examine the association between ELA and circulating PYY stress responses in smokers and nonsmokers (N = 152, ages 19-73 years) to examine the effects of nicotine addiction. Smokers initiated a quit attempt as part of the study and were classified as either abstinent smokers or relapsed smokers based on their nicotine use during the follow-up period. PYY levels were measured at five timepoints during three lab sessions and compared between nonsmokers and the two smoking groups (abstainers, relapsers): while smokers were using nicotine ad libitum, 24 h after smokers initiated a quit attempt, and 4 weeks after smokers initiated a quit attempt. Multivariate analyses showed the main effects of time on PYY, which decreased over time within each session. The main effects of ELA during the first (ad libitum smoking) and second (24-h post-cessation for smokers) sessions indicated that experiencing ELA was associated with lower PYY. No systematic effect of nicotine addiction or relapse was observed in this study. These findings suggest that adults with higher ELA may experience lower PYY. Additional research is needed to further explore the role of PYY in stress and addiction processes.

Momentary Minority Stress, Nicotine Use, and Craving: Moderation by Nicotine-Use Motives Among Sexual Minority Youth

OBJECTIVE

This pre-registered analysis aimed to examine the moderating role of nicotine-use motives on the association between minority stress and nicotine use and craving among sexual minority youth.

METHOD

Data stem from a 30-day ecological momentary assessment study conducted among 83 sexual minority youth ages 15-19 years old (M age = 17.96, SD = 1.10; 56.63% cisgender women; 73.5% non-Hispanic White). Participants were instructed to complete at least four assessments per day on wireless devices. Two types of multilevel models were estimated: models predicting day-level nicotine use and models predicting momentary nicotine use craving.

RESULTS

Experiencing minority stressors was not associated with day-level nicotine use, but it was associated with greater momentary nicotine craving. Nicotine use-motives did not moderate the association between minority stress and nicotine use. In contrast, stress-reduction motives, assessed as a person-level trait, moderated the association between minority stress and nicotine craving, such that nicotine craving after experiencing a minority stressor was consistently higher relative to when minority stress had not been reported. Sensitivity analyses that examined associations between minority stress and nicotine use on a given day, regardless of temporal order, showed that minority stress was associated with higher odds of nicotine use on that day.

CONCLUSIONS

Experiencing minority stressors did not predict day-level nicotine use but does contribute to greater momentary nicotine craving, informing minority stress theory. Consistency of the minority stress and nicotine craving relation, largely regardless of trait-level motives, highlights the potential context dependence of nicotine craving among sexual minority youth.Preregistration: This study was preregistered at osf.io/w5sz9.

The Role of Psychosocial Stress on Cardiovascular Disease in Women: JACC State-of-the-Art Review

Psychosocial stress can affect cardiovascular health through multiple pathways. Certain stressors, such as socioeconomic disadvantage, childhood adversity, intimate partner violence, and caregiving stress, are especially common among women. The consequences of stress begin at a young age and persist throughout the life course. This is especially true for women, among whom the burden of negative psychosocial experiences tends to be larger in young age and midlife. Menarche, pregnancy, and menopause can further exacerbate stress in vulnerable women. Not only is psychosocial adversity prevalent in women, but it could have more pronounced consequences for cardiovascular risk among women than among men. These differential effects could reside in sex differences in responses to stress, combined with women's propensity toward vasomotor reactivity, microvascular dysfunction, and inflammation. The bulk of evidence suggests that targeting stress could be an important strategy for cardiovascular risk reduction in women.

Exploration of possible sex bias in acute social stress research: a semi-systematic review

Stress can have a significant impact on the daily lives of individuals and can increase vulnerability to a number of medical conditions. This study aims to estimate the ratio of male to female participants in acute social stress research in healthy individuals. We examined original research articles published over the last 20 years. Each article was screened to determine the total number of female and male participants. We extracted data from 124 articles involving a total of 9539 participants. A total of 4221 (44.2%) participants were female, 5056 (53.0%) were male and 262 (2.7%) were unreported. Articles incorporating only females were significantly underrepresented compared to articles incorporating only males. Forty articles (63.5%) which presented data from both females and males, failed to analyse and interpret the results by sex, a significant methodological limitation. In conclusion, in the literature published over the last 20 years, female participants are significantly underrepresented. In the studies where females are represented, severe methodological limitations are apparent. Researchers should be conscious of sexual dimorphism, menstrual phase and use of hormonal contraception, which may impact the interpretation of their results.

Helping low-income smokers quit: findings from a randomized controlled trial comparing specialized quitline services with and without social needs navigation

Background

Quitting smoking is especially challenging for low-income smokers due to high stress, high smoking prevalence around them, and limited support for quitting. This study aimed to determine whether any of three interventions designed specifically for low-income smokers would be more effective than standard tobacco quitline services: a specialized quitline, the specialized quitline with social needs navigation, or the standard quitline with social needs navigation.

Methods

Using a randomized 2 × 2 factorial design, low-income daily cigarette smokers (n = 1944) in Missouri, USA who called a helpline seeking assistance with food, rent or other social needs were assigned to receive Standard Quitline alone (n = 485), Standard Quitline + Social Needs Navigation (n = 484), Specialized Quitline alone (n = 485), or Specialized Quitline + Social Needs Navigation (n = 490). The target sample size was 2000, 500 per group. The main outcome was 7-day self-reported point prevalence abstinence at 6-month follow-up. Multiple imputation was used to impute outcomes for those missing data at 6-month follow-up. Binary logistic regression analyses were used to assess differences between study groups.

Findings

Participants were recruited from June 2017 to November 2020; most were African American (1111 [58%]) or White (666 [35%]), female (1396 [72%]), and reported <$10,000 (957 [51%]) or <$20,000 (1529 [82%]) annual pre-tax household income. At 6-month follow-up (58% retention), 101 participants in the Standard Quitline group reported 7-day point prevalence abstinence (20.8% of those assigned at baseline, 38.1% after imputation). Quit rates in the Specialized Quitline (90 quitters, 18.6%, 38.1%) and Specialized Quitline + Social Needs Navigation (103 quitters, 21.0%, 39.8%) were not different from the Standard Quitline. Quit rates for Standard Quitline + Social Needs Navigation (74 quitters, 15.3%, 30.1%) were significantly lower than Standard Quitline (OR = 0.70, 95% CI = 0.50-0.98).

Interpretation

A specialized version of a state tobacco quitline was no more effective than standard quitline services in helping low-income smokers quit. Adding social needs navigation to a standard quitline decreased its effectiveness.

Trial registration

ClinicalTrials.gov Identifier: NCT03194958.

Funding

National Cancer Institute: R01CA201429.

A meta-analytic review of the effectiveness of mood inductions in eliciting emotion-based behavioral risk-taking and craving in the laboratory

Urgency research supports the role of emotions in risk-taking and craving. However, much of this work is based in self-report. It is not yet known whether existing experimental methods can effectively induce emotion-based risk-taking and craving. The present meta-analysis quantified the effectiveness of mood inductions in inducing risk-taking and craving in the laboratory. We also examined potential moderators, including participant factors, changes in emotional arousal, and study design factors. For negative mood inductions, the degree of changes in risk-taking, k = 35, Hedge's g (SE) = .12 (.04), 95% CI [.04, .21], and craving, k = 37, Hedge's g (SE) = .30 (.06), 95% CI [.19, .40] were small. Increases in emotional arousal were significantly related to increases in craving (B* = .26). For positive mood inductions, there was no significant change in risk-taking, k = 18, Hedge's g (SE) = .17 (.11), 95% CI [-.04, .38] nor craving, k = 8, Hedge's g (SE) = -.10 (.10), 95% CI [-.31, .10]; however, false positive feedback produced the largest increase in risk-taking. Study samples using guided imagery produced a moderate decrease in risk-taking. Overall, existing negative mood inductions increased risk-taking and craving in the laboratory to a small degree. Existing positive mood inductions failed to elicit risk-taking or craving, although the literature in this domain was sparser. We suggest that there is a great need to develop and optimize mood induction methods to better study emotion-based risk-taking and craving in the laboratory. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Psychosocial and psychiatric-related stress and cigarette smoking among Black and Latinx adults with psychiatric disorders

While the cigarette smoking prevalence in the United States has decreased, smoking disparities persist for individuals with psychiatric disorders and individuals who identify as racial/ethnic minorities. These groups also experience higher levels of psychosocial stress. This study was the first to examine the relationship between psychosocial and psychiatric-related stressors and cigarette smoking status in a sample of Black and Latinx adults with psychiatric illness. Stress associated with friend strain, lifetime discrimination, and attending appointments for psychotropic medication management were associated with cigarette smoking. The present results have implications for integrating smoking cessation interventions into mental health treatment settings.

A novel stress-based intervention reduces cigarette use in non-treatment seeking smokers

Tobacco use is the leading cause of preventable mortality worldwide. Since current smoking cessation aids show only modest efficacy, new interventions are needed. Given the evidence that stress is a potent trigger for smoking, the present randomized clinical trial tested whether stress could augment the effects of a memory updating (retrieval-extinction) intervention. Non-treatment seeking smokers (n = 76) were assigned to one of four conditions composed of either a stressful or non-stressful psychosocial challenge followed by either smoking or neutral cues. Ten minutes after this manipulation, all underwent a 60-minute extinction procedure during which they viewed smoking-related videos and images and manipulated smoking paraphernalia. Compared to participants who were not exposed to the laboratory stressor, the stressor-exposed groups exhibited greater psychophysiological responses during their intervention and greater decreases in cigarette use at two- and six-weeks follow-up independent of smoking cue exposure. Together, these findings suggest that the ability of stress to activate cigarette seeking processes can be exploited to decrease cigarette use. With replication, the stress-based intervention could become a novel strategy for decreasing cigarette use in non-treatment seeking smokers.Clinicaltrials.gov identifier: NCT04843969.

Momentary Associations Among Minority Stress, Craving, Affect, and Nicotine Use Among Sexual Minority Youth

OBJECTIVES

Sexual minority youth are more likely to use nicotine relative to heterosexual youth. The minority stress model posits these disparities are partly due to unique stress (i.e., minority stress) specific to their stigmatized identities. However, there is a dearth of research exploring the fine-grained dynamic interplay between minority stressors, mediating processes, and nicotine use in sexual minority youth's daily lives and natural environment. We leveraged ecological momentary assessment over a 30-day monitoring period to test the mediating effects of craving and negative and positive affect on the momentary associations between minority stressors and subsequent nicotine use among sexual minority youth who were active nicotine users and recruited from the community.

METHODS

Participants were 85 nicotine users, ages 15-19 years old (M age = 17.96, SD = 1.10; 56.6% cisgender female; 56.6% bisexual; 73.5% non-Hispanic White) and half (51.8%) were daily nicotine users.

RESULTS

Results indicated that exposure to a minority stressor was associated with momentary elevations in nicotine craving and negative affect and decreases in positive affect. Nicotine craving and positive affect were also associated with greater probability of subsequent nicotine use. The associations between minority stressors and subsequent nicotine use were mediated through craving and positive, but not negative affect.

CONCLUSIONS

Our findings provide the first ecological momentary assessment evidence of these associations among sexual minority youth and help support and advance both addictions and sexual minority-specific models (e.g., minority stress) of nicotine use among youth.

Psychosocial stress and cancer risk: a narrative review

BACKGROUND

It is unclear which psychological factors (stressors, emotional correlates, and psychophysiological markers) induce cancer risk. This currently limits the potential for prevention strategies.

PURPOSE

The aim of this review is to bring forth evidence of stress as a determinant of cancer risk from a public health perspective, written for a broad public of practitioners and scientists.

METHODS

Based on a semisystematic literature search, the impact of different aspects/types of stress and the potential physiological and behavioral pathways are summarized, while highlighting further research, public health and clinical implications.

RESULTS

Between 2007 and 2020, 65 case-control or cohort studies have been identified. Apart from overall cancer ( N = 24), 12 cancer types have been associated with psychological stress with most for breast ( N = 21), colorectal ( N = 11) and lung/prostate/pancreas cancer ( N = 8 each). Although the evidence regarding the mechanisms is still scarce, cancer development in relation to stress might be due to interacting and combined effects of different stress(or) types, but such interaction has not really been tested yet. The path from stress towards cancer incidence consists of a biological pathway with endocrinology and immunology as well as stress-induced behavioral pathways, including smoking, alcoholism, sleep disruption, an unhealthy diet, and low physical activity together with the related phenomenon of obesity.

CONCLUSION

Not only the stress but also the stress-induced lifestyle should be targeted for cancer prevention and treatment. Future research should include a more diverse spectrum of cancer types (not only hormonal related like breast cancer) and of stress measures while also considering behavioral covariates.

Test of daily app-based mindfulness meditation preceding a planned smoking quit attempt date on abstinence: Protocol for a randomized controlled trial recruiting across the 58 counties of California

A majority of the 34 million people who currently smoke cigarettes report wanting to quit smoking yet most attempts to quit end in relapse. A mindfulness based intervention (MBI) is an intervention package used to reinforce an individual's practice of mindfulness meditation in daily life. MBIs delivered by phone app offer daily prompts to guide bouts of mindfulness meditation, that is, sustained attention to moment-by-moment experience without behavior reactivity. Daily bouts of mindfulness meditation offer individuals a replacement behavior for smoking during a quit attempt, and MBI app instruction aims to increase an individual's skill in non-reactivity when they experience cravings. Our study objective is to test the effect of an app-based MBI on abstinence during a scheduled quit attempt among people who currently smoke and who are willing to make a voluntary quit attempt on a selected near-term date. Our delivery of a smartphone app-based MBI occurs daily for the two weeks preceding a planned quit date. Study participants are randomized to a either a app-based MBI or an app-based psychoeducation control group and asked to self-administer their intervention two times a day in 10-min segments for 14 sequential days for a total of 280 min. This preparatory period capitalizes on time to help participants orient toward a near-term goal to quit smoking, practice mindfulness meditation, and increase the skill of non-reactivity during states of craving to smoke. We recruit people who smoke cigarettes from all 58 counties in California. We test the hypothesis that an app-based MBI will outperform a time-matched psychoeducation control on increasing smoking abstinence. Findings contribute knowledge to the addictions treatment field about whether MBIs delivered by app can increase smoking cessation in a geographically diverse sample.

Fleeing through the mind's eye: Desire thinking as a maladaptive coping mechanism among specific online activities

INTRODUCTION

Desire thinking is defined as a voluntary cognitive activity aimed at imaginatively and verbally elaborating a future scenario of performing a desired behavior. Although not problematic per se, desire thinking can become dysfunctional if it is used to regulate negative mood states and due to its ability to induce craving. This study tests a mediation model where desire thinking is hypothesized to mediate the association between emotional reactivity and craving among specific online activities.

METHODS

The study comprised an online survey that was completed by 925 participants who indicated that their first-choice online activity was one out of social-networks use, shopping, gaming, gambling, or pornography viewing. In this sample, a structural equation model was tested where negative emotional reactivity, desire thinking, and craving were latently modelled in this serial order.

RESULTS

Results indicated that higher levels in negative emotional reactivity significantly predicted higher desire thinking tendencies, which in turn significantly predicted higher cravings for online activities. The direct path between negative reactivity and craving was not significant. Further, our results support the two-factorial structure of a German version of the Desire Thinking Questionnaire (Caselli & Spada, 2011).

DISCUSSION

The findings show that desire thinking might be initiated as an attempt to regulate negative affective states. This highlights its possible role as a maladaptive coping mechanism in the context of specific online activities due to the resulting craving responses, which in turn could promote the emergence of unwanted behaviors.

Now or Later? Stress-Induced Increase and Decrease in Choice Impulsivity Are Both Associated with Elevated Affective and Endocrine Responses

Exposure to acute stress elicit physiological and psychological responses that can impact decision-making, often expressed as an increased tendency to act in an impulsive manner following stress. Delay discounting (DD) task has emerged as a reliable measure of impulsive behavior in the form of choice impulsivity (CI). Interestingly, studies that examined the effect of acute stress on DD performance reported mixed results. To address this, we conducted a within-subject examination of the impact of acute stress on CI, focusing on individual differences in response patterns. One hundred and fifty healthy female participants completed the DD task twice, before and after undergoing an acute laboratory stress induction procedure. Saliva samples and self-report mood and affect measures were collected at four time points throughout the session. Fifty-nine matched healthy control participants completed only the DD task twice, with no stress in between. Results indicate that the acute stress procedure elicited the expected effects of increased cortisol release and increased negative mood and affect, at the group level. With respect to DD, stress indeed increased CI at the group level, yet participants differed in the magnitude and direction of this effect. Interestingly, regression analysis revealed quadratic relations between stress-induced changes in CI and cortisol release. Indeed, dividing the sample into three sub-groups based on the impact of stress on CI revealed that, compared to participants that exhibited no substantial change in their CI following stress, participants that exhibited either stress-induced increase or decrease in their CI also exhibited more stress-induced cortisol release, as well as more negative affect. Taken together, these findings suggest that elevated physiological and psychological responses to stress are associated with either increased or decreased choice impulsivity, thus depicting quadratic relations between stress and impulsivity.

The effects of psychological stress on approach tendencies for smoking-related cues in smokers

Stress may potentiate the chronification of nicotine addiction, but the exact mechanisms remain elusive. We performed an explorative pilot study examining the effects of psychological stress, administered via the socially evaluated cold pressor task (SECPT), on implicit approach bias for smoking-related cues in smokers in the approach-avoidance task (AAT). Smokers (N = 24) were subjected to the stress or control condition of the SECPT by using a within-subject design. Consistent with previous findings, a strong approach bias for smoking-related cues in the AAT was found in smokers. Exposure to stress did not affect the general bias for smoking-related cues in the AAT relative to the control condition of the SECPT. In additional explorative analyses, an interaction among carbon monoxide (CO) levels in expired air, cortisol levels, and stress on approach bias for smoking-related cues was found. Higher CO levels, possibly due to recent smoking, prior to stress exposure were associated with an approach bias for smoking-related cues. Our results suggest that CO levels in interaction with stress can modulate implicit, automatic processing in the context of nicotine addiction. Our findings might provide novel cues to how stress influences cigarette craving and smoking behavior.

Time-Varying Functional Connectivity Decreases as a Function of Acute Nicotine Abstinence

BACKGROUND

The nicotine withdrawal syndrome (NWS) includes affective and cognitive disruptions whose incidence and severity vary across time during acute abstinence. However, most network-level neuroimaging uses static measures of resting-state functional connectivity and assumes time-invariance and is thus unable to capture dynamic brain-behavior relationships. Recent advances in resting-state functional connectivity signal processing allow characterization of time-varying functional connectivity (TVFC), which characterizes network communication between networks that reconfigure over the course of data collection. Therefore, TVFC may more fully describe network dysfunction related to the NWS.

METHODS

To isolate alterations in the frequency and diversity of communication across network boundaries during acute nicotine abstinence, we scanned 25 cigarette smokers in the nicotine-sated and abstinent states and applied a previously validated method to characterize TVFC at a network and a nodal level within the brain.

RESULTS

During abstinence, we found brain-wide decreases in the frequency of interactions between network nodes in different modular communities (i.e., temporal flexibility). In addition, within a subset of the networks examined, the variability of these interactions across community boundaries (i.e., spatiotemporal diversity) also decreased. Finally, within 2 of these networks, the decrease in spatiotemporal diversity was significantly related to NWS clinical symptoms.

CONCLUSIONS

Using multiple measures of TVFC in a within-subjects design, we characterized a novel set of changes in network communication and linked these changes to specific behavioral symptoms of the NWS. These reductions in TVFC provide a meso-scale network description of the relative inflexibility of specific large-scale brain networks during acute abstinence.

Cortisol Concentration as Predictor of Tobacco Initiation in Adolescents: Results From a Population-Based Swedish Cohort

PURPOSE

Stress potentiates the smoking reward, decreases the ability to resist smoking, and increases the risk of smoking relapse in adulthood. This study aimed to clarify if salivary cortisol, as an indicator of stress, may be prospectively associated with the onset and phenotype of tobacco use in adolescents.

METHODS

This study was based on a cohort of Swedish adolescents, among whom saliva specimens were collected from a nested sample. We included adolescents with salivary cortisol measurements and without a history of tobacco use (n = 381, aged 13-14 years). Quartiles of morning and afternoon cortisol concentration and cortisol area under the curve were considered as predictors. We categorized tobacco use according to the product mainly used: cigarette smoking, snus use, or either type of tobacco. For each product use, two outcomes were considered: initiation and duration of use. Poisson regression models were used to calculate rate ratios.

RESULTS

A quartile increase in morning cortisol levels and cortisol area under the curve was consistently associated with a 1.2- to 1.4-fold increased risk of initiation of cigarette smoking snus use, or any tobacco use. Similar results were obtained examining the dose-response relationship and using the duration of use as outcome. No associations were apparent between afternoon cortisol concentration and any of the outcomes. All associations were similar between sexes.

CONCLUSIONS

Morning cortisol concentration, an indicator of hypothalamic-pituitary-adrenal axis activation, is prospectively associated with tobacco use in adolescents. Whether this activation indicates the cumulative effect of stressors during the life course remains to be elucidated.

Tobacco use and associated factors among adults reside in Arba Minch health and demographic surveillance site, southern Ethiopia: a cross-sectional study

BACKGROUND

Tobacco use is one of the world-leading preventable killers. There was a varied prevalence of tobacco use and cigarette smoking across different areas. The aim of the study was to assess the prevalence and factors associated with current tobacco use among adults residing in Arba Minch health and demographic surveillance site (HDSS).

METHODS

A community-based cross-sectional study was conducted among adults residing in Arba Minch HDSS in 2017. The estimated sample size was 3368 individuals which were selected by simple random sampling techniques using Arba Minch HDSS dataset. Data collection tools were obtained from the WHO STEPwise. Current use of tobacco, which defined as the current use of smoked and/or smokeless tobacco, was considered as the dependent variable. A binary logistic regression model was used to identify candidate variables for the multivariable logistic regression model. An adjusted odds ratio (AOR) at a p-value of less than 0.05 was used to determine a statistically significant association between independent and dependent variables.

RESULT

The prevalence of tobacco use among adults was 20.2% (95% CI: 18.9-21.6%). The current use of smoked and smokeless tobacco were 17.1% (95%CI: 15.8-18.4%) and 9.7% (95%CI: 8.8-10.8%), respectively. The current use of tobacco was significantly associated with sex (female [AOR 0.54; 95%CI: 0.42-0.68] compared to men), age group (35-44 [AOR 1.57; 95%CI: 1.14-2.17], 45-54 [AOR 1.99; 95%CI: 1.45-2.74], and 55-64 [AOR 3.26; 95%CI: 2.37-4.48] years old compared to 25-35 years old), physical activity (moderate physical activity level [AOR 0.65; 95%CI: 0.44-0.96] compared with low) and residency (highland [AOR 4.39; 95% CI: 3.21-6.01] compared with at lowlander). Also, heavy alcohol consumption (AOR 3.97; 95% CI: 3.07-5.12), and Khat chewing (AOR 3.07(95%CI: 1.64-5.77) were also associated with the use of tobacco among the study participants.

CONCLUSION

Nearly one in five adults used tobacco currently in the study area, which is more than the national reports. Interventions for the reduction of tobacco use need to give due attention to men, older adults, uneducated, poor, and highlanders.

Association of characters and temperaments with cigarette and waterpipe dependence among a sample of Lebanese adults

It was discovered that the relation between certain personality traits and nicotine dependence differs among ethnicities and cultures; therefore, this study was conducted to determine which temperaments and personality traits are associated with smoking dependence in order to contribute to the development of effective and targeted interventions for smoking dependence within the Lebanese population. A cross-sectional study was carried out between March and April 2020 among a sample of Lebanese adults from all Lebanese governorates. The sample included (N = 501) divided as follows: 62 (12.4%) nonsmokers, 37 (7.4%) cigarette smokers, 266 (53.1%) waterpipe smokers, and 136 (27.1%) mixed smokers. Higher cooperativeness (B = - 0.03) was significantly associated with lower waterpipe dependence. High vs. low education level (B = - 0.97), female gender compared to males (B = - 1.07), higher cooperativeness (B = - 0.01), and higher self-transcendence (B = - 0.01) were significantly associated with lower cigarette dependence, whereas higher age (B = 0.03) was significantly associated with higher cigarette dependence. A multinomial regression analysis, taking the smoking group as the dependent variable, showed that higher harm avoidance (aOR = 0.97) and novelty seeking (aOR = 0.97) were significantly associated with lower cigarette smoking. A high level of education vs. a low one (aOR = 8.85) was significantly associated with higher cigarette smoking. Higher self-transcendence was significantly associated with lower mixed smoking. Being married vs. single (aOR = 2.46) was significantly associated with higher odds of being a mixed smoker, whereas female gender compared to males (aOR = 0.41) was significantly associated with lower odds of being a mixed smoker. These results are pivotal in understanding the relationship between personality and smoking dependence.

Trial-by-Trial Fluctuations in Brain Responses to Stress Predict Subsequent Smoking Decisions That Occur Several Seconds Later

BACKGROUND

To investigate the neurobiological mechanisms that determine self-regulation of smoking urges when a person encounters stress, we investigated brain network interactions of smoking self-regulation by employing a real-time smoking (nicotine delivery) decision paradigm and a brain-as-predictor neuroimaging approach.

METHODS

While in the functional magnetic resonance imaging scanner, 25 cigarette smokers who abstained from smoking overnight made 200 real smoking decisions regarding whether or not to take a puff of an electronic cigarette during 3 different stress conditions (cognitive stress, emotional stress, and no stress). Cognitive stress was induced by a concurrent working memory load, and emotional stress was induced by manipulating a chance of aversive electric shock.

RESULTS

Behaviorally, both cognitive and emotional stress manipulations increased the probability of making a decision to smoke (i.e., taking a puff). In magnetic resonance imaging trial-by-trial analyses, the dorsolateral prefrontal cortex activity measured at the time of the stress cue significantly predicted future smoking decisions that occurred several seconds later. Furthermore, the influence of dorsolateral prefrontal cortex activity on smoking decisions was mediated by the ventral striatum activity at the time of smoking decisions.

CONCLUSIONS

Our study demonstrated that brain responses at the time of a stressful moment determine subsequent trial-by-trial smoking decisions by systematically altering brain executive (dorsolateral prefrontal cortex) and reward (ventral striatum) system network activities. Our results further suggest potential translational importance of neuroscientific approaches to predicting self-regulation failures at critical stressful moments.

Effects of Intranasal Oxytocin on Stress-Induced Cigarette Craving in Daily Smokers

BACKGROUND

Cigarette smoking is a well-known public health concern, and there is an urgent need to develop new treatments to reduce smoking or facilitate abstinence. One factor that is known to contribute to relapse is stress, making the stress response an important target for treatment. The neuropeptide oxytocin (OT) is believed to have stress-reducing effects, and in addition there is evidence that it reduces drug craving. The purpose of the present study was to examine the effects of intranasal OT on stress-induced cigarette craving in regular smokers after 12 h of abstinence.

METHOD

Daily smokers (n = 48) completed a stress induction task and a nonstressful control task at two different sessions, receiving intranasal OT (40 IU) or placebo (PBO) before or after the task. Subjects were randomly assigned to one of three groups: Group PP (n = 16) received PBO before and after the stress/control tasks, Group OP (n = 16) received OT before the tasks and PBO after, and Group PO (n = 16) received PBO before the tasks and OT shortly after completing the tasks. Cigarette craving as well as subjective and physiological responses to stress was assessed.

RESULTS

OT did not alter responses to stress, whether it was administered before or after the stressful task, on measures of cigarette craving, anxiety, heart rate, blood pressure, and cortisol levels.

CONCLUSIONS

The current study findings do not support several previous reports that OT reduced either stress or drug craving.

IMPLICATIONS

This study finds a null result of the neuropeptide oxytocin on stress-induced cigarette craving. Reporting null findings is part of the process of identifying potential treatments for addictive disorders.

Regular cannabis use is associated with blunted affective, but not cardiovascular, stress responses

AIMS

To examine the potential impact of regular cannabis use on cardiovascular and subjective responses to acute stress.

DESIGN

We used a quasi-experimental design in which subjective states and cardiovascular measures were obtained during rest and in response to acute stress challenges in a sample of regular cannabis users and non-users.

PARTICIPANTS

Seventy-nine adults (forty-five cannabis users and thirty-four non-users).

MEASUREMENTS

We measured subjective states (positive affect, state stress, state anxiety, cannabis craving) and cardiovascular indicators (blood pressure, heart rate, mean arterial pressure) during baseline rest and in response to public speaking, mental arithmetic, and cold-pressor challenges. Regular cannabis use was established via self-report and was confirmed with a positive urine drug test.

FINDINGS

Regular cannabis use was associated with blunted positive affect (F = 5.67, p = .002), state stress (F = 6.05, p = .002), and state anxiety (F = 6.48, p < .001) in response to acute stress challenges. There was no evidence of an association between cannabis use and cardiovascular responses (Fs ≤ 1.54; Ps ≥ 0.21). Contrary to expectations, cannabis craving decreased in response to stress challenges (F = 8.44, p < .001).

CONCLUSION

Chronic cannabis use is associated with blunted positive and negative (stress, anxiety) affective responses to acute stress, indicating emotional dysregulation in this population.

Behavioral Health and Response for COVID-19

Research from financial stress, disasters, pandemics, and other extreme events, suggests that behavioral health will suffer, including anxiety, depression, and posttraumatic stress symptoms. Furthermore, these symptoms are likely to exacerbate alcohol or drug use, especially for those vulnerable to relapse. The nature of coronavirus disease 2019 (COVID-19) and vast reach of the virus, leave many unknows for the repercussions on behavioral health, yet existing research suggests that behavioral health concerns should take a primary role in response to the pandemic. We propose a 4-step services system designed for implementation with a variety of different groups and reserves limited clinical services for the most extreme reactions. While we can expect symptoms to remit overtime, many will also have longer-term or more severe concerns. Behavioral health interventions will likely need to change overtime and different types of interventions should be considered for different target groups, such as for those who recover from COVID-19, health-care professionals, and essential personnel; and the general public either due to loss of loved ones or significant life disruption. The important thing is to have a systematic plan to support behavioral health and to engage citizens in prevention and doing their part in recovery by staying home and protecting others.

Daily stress as link between disadvantage and smoking: an ecological momentary assessment study

Background

There is a well-established social gradient in smoking, but little is known about the underlying behavioral mechanisms. Here, we take a social-ecological perspective by examining daily stress experience as a process linking social disadvantage to smoking behavior.

Method

A sample of 194 daily smokers, who were not attempting to quit, recorded their smoking and information about situational and contextual factors for three weeks using an electronic diary. We tested whether socioeconomic disadvantage (indicated by educational attainment, income and race) exerts indirect effects on smoking (cigarettes per day) via daily stress. Stress experience was assessed at the end of each day using Ecological Momentary Assessment methods. Data were analyzed using random effects regression with a lower-level (2-1-1) mediation model.

Results

On the within-person level lower educated and African American smokers reported significantly more daily stress across the monitoring period, which in turn was associated with more smoking. This resulted in a small significant indirect effect of daily stress experience on social disadvantage and smoking when using education and race as indicator for social disadvantage. No such effects were found when for income as indicator for social disadvantage.

Conclusion

These findings highlight the potential for future studies investigating behavioral mechanisms underlying smoking disparities. Such information would aid in the development and improvement of interventions to reduce social inequality in smoking rates and smoking rates in general.

Weaker Memory Performance Exacerbates Stress-Induced Cannabis Craving in Youths' Daily Lives

Theories of addiction posit that stimuli associated with drug use, including both exteroceptive (e.g., paraphernalia) and interoceptive (e.g., feeling tense or "stressed"), evoke craving and contribute to the pathogenesis of substance misuse. Control over drug cue response and stress is essential for moderating use. Building from laboratory data supporting associations between cue exposure, stress, and craving, this study tested whether these associations generalize to real-world settings and examined whether a well-vetted neurocognitive control capacity, i.e., working memory (WM), moderated associations. Youth (N = 85; 15-24 years) completed baseline and ecological momentary assessments. Cue exposure and participants' average stress predicted higher craving. Youth with weaker WM experienced stronger craving at higher-stress moments but not when faced with cues. Interactions were present for both previous-moment and same-moment stress. Craving among adolescents with stronger WM was not swayed by momentary stress. Findings suggest stronger WM protects against craving at more stressful moments.

Psychosocial characteristics of smoking patterns among young adult Samoans and Tongans in California

INTRODUCTION

Despite the high burden of tobacco-related diseases experienced by Samoans and Tongans, there is relatively little understanding of the factors that influence their smoking behaviors which could inform effective smoking cessation strategies. This study examined several psychosocial characteristics that intertwine to predict smoking patterns in these Pacific Islander subgroups.

METHODS

Samoans and Tongans between the ages of 18 and 33, who consumed at least 100 cigarettes in their lifetime and were current smokers, were categorized as light, moderate, or heavy smokers. Baseline data from a randomized controlled smoking cessation trial were analyzed. Participants (n = 278) were measured on self-efficacy, perceived stress, sensation seeking, hostility, depression, and impulsivity. Least square means estimated from General Linear Models were used to compare psychosocial characteristics across smoking groups, as well as by gender and ethnicity.

RESULTS

Samoan male heavy smokers reported higher levels of self-efficacy compared to light smokers, and greater stress, hostility, depression, and urgency over moderate smokers. Samoan female heavy smokers demonstrated greater stress and hostility than moderate and light smokers. Tongan female heavy and light smokers had significantly elevated levels of sensation seeking compared to moderate smokers. Tongan male smokers did not display any meaningful associations with these psychosocial constructs.

CONCLUSIONS

This study underscores the important distinctions between smoking patterns, gender, and ethnic subgroups. Interventions that rely on aggregated smoking profiles or general Pacific Islander data may not adequately address the complex array of mental health factors that contribute to tobacco use.

Examining the Relation Between Physiological and Psychological Components of Stress Reactivity and Recovery in Cigarette Smokers

Cigarette smokers exhibit reduced physiological stress reactivity, yet it is unclear whether blunted reactivity predicts differences in subjective recovery and vice versa. The study examined whether basal heart rate and heart rate reactivity were related to recovery in anxiety following stress, and conversely, whether initial self-reported anxiety and anxiety reactivity were related to heart rate recovery. Fifty-six smokers completed a 10-min baseline period, a 4-min stressor, and a 10-min recovery period during which heart rate and anxiety were continuously assessed. Results indicated significant linear (p < .01, d = 0.31) and quadratic (p = .02, d = 0.27) effects of baseline heart rate and reactivity (linear p < .01, d = 0.80; quadratic p < .01, d = 0.66) on recovery in anxiety and significant linear (p < .01, d = 0.88) and quadratic (p < .01, d = 0.74) effects of anxiety reactivity on heart rate recovery. These findings suggest that reduced reactivity in both heart rate and anxiety predicted slower recovery in the opposite domain. Findings offer initial evidence for psychophysiological integration in cigarette smokers.

Psychosocial stress impairs health behavior in patients with mental disorders

BACKGROUND

It has been shown, that in the general population psychosocial stress affects health behaviors. However similar studies of high risk populations are sparse. Therefore, the aim of this cross-sectional study is to analyze the association between common psychosocial stressors and health behavior in a sample of patients with mental disorders.

METHODS

We analyzed data of n = 2326 outpatients from a mental health care department. Severity of psychosocial stress was assessed by the PHQ-stress module of the Patient Health Questionnaire (PHQ). Health behaviors included obesity, uncontrolled eating, smoking and physical inactivity. Multiple binary regression models were conducted for the PHQ-stress score and for each of the ten PHQ-stress items as independent variables.

RESULTS

'Financial stress' and 'having no one to turn to with problems' were mainly associated with adverse health behaviors after adjustment for multivariate effects. The most affected health behaviors were uncontrolled eating in both sexes and obesity in women.

CONCLUSION

Our findings indicate specific influences of psychosocial stressors on unhealthy behaviors in a clinical sample. Patients with financial strain and lack of social support might need specific support for improving their health behavior.

Smokers Display Reduced Glucocorticoid Sensitivity Prior to Symptomatic Chronic Disease Development

Background

Chronic stress plays a critical role in many of today's diseases and causes of death. Tobacco use reliably increases the likelihood of chronic disease development and premature death. In addition, habitual tobacco use elevates risk of chronic inflammatory diseases, and glucocorticoid therapy is often less effective in smokers compared with nonsmokers. Taken together, smokers may develop glucocorticoid insensitivity, thereby removing the body's greatest anti-inflammatory mechanism.

Purpose

The purpose of this study was to examine glucocorticoid sensitivity among 24 smokers and 24 age-, sex-, and body mass index-matched never smokers who were clinically healthy individuals (i.e., no diagnosis or medication use for chronic diseases and normotensive).

Method

Participants visited the lab after a 12 hr fast, provided a blood sample, and completed a series of psychosocial questionnaires. Smokers continued smoking ad libitum before the lab visit. Group differences in glucocorticoid sensitivity were examined using ANCOVA and repeated with linear mixed model to account for possible dependence among immune outcomes that matching participants on age, sex, and body mass index may have introduced.

Results

Prior to clinical disease onset, smokers' peripheral blood mononuclear cells (PBMCs) exhibited reduced glucocorticoid sensitivity as well as a diminished inflammatory response to lipopolysaccharide compared with never smokers' PBMCs; results were identical regardless of statistical modeling used.

Conclusions

Cigarette smoking, a self-initiated pharmacological chronic stressor, may provide a unique opportunity to examine early wear and tear on physiological functioning that may lead to chronic disease development. Additional research into PBMCs' intracellular changes must be examined as well as repeating this study in a larger, more heterogeneous population.

Affect, craving, and cognition: An EMA study of ad libitum adolescent smoking

Reducing smoking among adolescents is a public health priority. Affect, craving, and cognitive processes have been identified as predictors of smoking in adolescents. The current study examined associations between implicit attitude for smoking (assessed via the positive-negative valence implicit association test) and affect, craving, and smoking assessed using ecological momentary assessment (EMA). Adolescent smokers (n = 154; Mage = 16.57, SD = 1.12) completed a laboratory assessment of implicit smoking attitudes and carried a palm-top computer for several days while smoking ad libitum. During EMA, they recorded affect, craving, and smoking behavior. Data were analyzed using a multilevel path analysis. At the between-subjects level, more positive implicit smoking attitude was indirectly associated with smoking rate via craving. This association was moderated by positive affect, such that it was stronger for those with greater traitlike positive affect. At the event (within-subject) level, implicit attitude potentiated associations between stress and craving and between positive affect and craving. Individuals with a more positive implicit attitude exhibited more robust indirect associations between momentary stress-positive affect and smoking. In sum, a more positive implicit attitude to smoking was associated with overall levels of craving and smoking and might have potentiated momentary affect-craving associations. Interventions that modify implicit attitude may be an approach for reducing adolescent smoking. (PsycINFO Database Record

Tobacco Use Among the Adult Muslim Population in Indonesia: A Preliminary Study on Religion, Cultural, and Socioeconomic Factors

In this study, we used data from the Indonesia Family Life Survey Wave 2014 to explore the association between tobacco use (measured in smoking habit, smoking cessation, and smoking intensity) with demographic, socioeconomic, and religious factors among the Muslim population in Indonesia ( n = 28,285). Our study found that Muslims who pray regularly as regulated in Islam are less likely to have a smoking habit or more likely to stop smoking and to smoke less. Other factors associated with no smoking or smoking less include education, having health insurance, and having a medical checkup. Reducing tobacco prevalence in Indonesia and other predominantly Muslim communities may include incorporating religious interpretation about tobacco use, education on the risk of tobacco through school systems, and increasing access to health insurance that covers addictions prevention and recovery.

Independent and relative effects of stress, depressive symptoms, and affect on college students' daily health behaviors

Stress and depressive symptoms are associated with maladaptive health behavior practices such as unhealthy eating, sedentary behavior, insufficient sleep, and substance use. The relative and interactive effects of stress and depressive symptoms on health behavior practices are less well understood. The present study examined these processes in a daily diary study of 127 college students. Results from hierarchical generalized linear models indicated that depressive symptoms, and chronic and daily stress, but not acute stressful life events, were significantly associated with a composite score of daily maladaptive health behavior engagement (depressive symptoms b = .01, SE= .00, p < .01; chronic stress, b = .03, SE= .01, p < .01; daily stress, b = .01, SE= .01, p = .02); unexpectedly, the effect of stress on health behaviors was not moderated by depressive symptoms. Additionally, results demonstrated that the effect of depressive symptoms on health behaviors was mediated by fluctuations in daily negative affect. These results bear implications for intervention during a crucial period in the development of mental and physical health.

Cigarette craving and stressful social interactions: The roles of state and trait social anxiety and smoking to cope

BACKGROUND

Previous research indicates that social anxiety (SA) is a risk factor for the maintenance and relapse of smoking behaviors. However, little is known about the mechanisms underlying this relationship. The current study tested the effects of state and trait levels of SA as well as smoking to cope with symptoms of SA on craving during a social stressor task in abstinent conditions.

METHODS

Participants (n = 60) were daily smokers, aged 18-30. Participants attended two sessions: a baseline session and a second session, wherein they engaged in a social stressor task while deprived from nicotine for 24 h. Subjective ratings of cigarette craving and state levels of SA were assessed six times throughout the task. Data were analyzed via multilevel modeling.

RESULTS

Both trait SA and some forms of smoking to cope with symptoms of SA were more likely to predict increased craving during times of high, relative to low, social stress. Further, individuals with higher state SA, greater smoking to cope behaviors, and those who experience greater relief of social distress by smoking experienced greater craving throughout the task. These effects remained after controlling for nicotine dependence, withdrawal symptoms, depression, and other symptoms of anxiety and stress. Smoking to cope with symptoms of SA did not moderate the relationship between state SA and craving.

CONCLUSIONS

Smokers high in SA (state and trait) and smoking to cope with symptoms of SA may be at risk for continued smoking and relapse because of the intensity of cravings they experience during stressful social situations.

Impact of the financial crisis on COPD burden: Greece as a case study

Poverty and low socioeconomic status have been associated with chronic obstructive pulmonary disease (COPD). The current financial crisis has forced millions back into poverty. Greece is one of the countries hit the hardest, and is in the middle of a deep ongoing collapse. There have been early reports stating the apparent effects of the Greek downturn on respiratory health. This review summarises the overall impact of the financial crisis on COPD burden throughout the period of economic downturn by analysing the case study of Greece. In all levels of the healthcare system, current economic restrictions have reduced the capacity to prevent, diagnose and treat COPD in parallel with current higher detection rates of COPD. Remarkably, expenditure on healthcare has been reduced by >25%, resulting in major healthcare equipment shortages. Lower wages (by up to 20%) and higher co-payments of up to 25% of a drug's purchase price have led to patients struggling to afford inhaled medications. Treatment nonadherence has been reported, resulting in 11.5% more exacerbations and 14.1% more hospitalisations annually, while the mean cost per severe COPD exacerbation has been approximated as €2600. Greece is a noteworthy example illustrating how COPD burden, quality of care and patients' outcome can be affected by economic crisis.

Intergenerational Mobility in Relative Educational Attainment and Health-Related Behaviours

Research on intergenerational social mobility and health-related behaviours yields mixed findings. Depending on the direction of mobility and the type of mechanisms involved, we can expect positive or negative association between intergenerational mobility and health-related behaviours. Using data from a retrospective cohort study, conducted in more than 100 towns across Belarus, Hungary and Russia, we fit multilevel mixed-effects Poisson regressions with two measures of health-related behaviours: binge drinking and smoking. The main explanatory variable, intergenerational educational mobility is operationalised in terms of relative intergenerational educational trajectories based on the prevalence of specified qualifications in parental and offspring generations. In each country the associations between intergenerational educational mobility, binge drinking and smoking was examined with incidence rate ratios and predicted probabilities, using multiply imputed dataset for missing data and controlling for important confounders of health-related behaviours. We find that intergenerational mobility in relative educational attainment has varying association with binge drinking and smoking and the strength and direction of these effects depend on the country of analysis, the mode of mobility, the gender of respondents and the type of health-related behaviour. Along with accumulation and Falling from Grace hypotheses of the consequences of intergenerational mobility, our findings suggest that upward educational mobility in certain instances might be linked to improved health-related behaviours.

Effects of smoking and paroxetine on stress-induced craving and withdrawal symptoms

Background

When smokers relapse, many cite stressful circumstances as the cause. Most smoking cessation medications do not prevent stress induced increases in craving and withdrawal symptom severity; however the effect of smoking prior to stress exposure on symptom severity is unclear.

Methods

We examined how smoking a cigarette immediately prior to a stressful task affects craving and withdrawal symptom severity by analyzing data from a double-blind, crossover study assessing paroxetine's effects on the physiological response to the combination of stress and smoking. Measures were obtained prior to and following smoking / stress exposure and following a subsequent 30 minute period at two laboratory sessions (i.e., after one month each of paroxetine and placebo).

Results

Among study completers (n=63), severity of craving decreased from the beginning of the session to immediately following the smoking / stress exposure (p<0.01) and severity of smoking urges decreased from the beginning to the end of the laboratory session (p<0.001). Withdrawal symptoms were less severe while taking paroxetine vs. placebo (p<0.05) but no treatment x time effects were observed.

Conclusions

Additional research is needed to identify interventions that could similarly decrease stress induced craving in order to determine if smoking cessation rates can be increased.

The social networks of smokers attempting to quit: An empirically derived and validated classification

Social relationships play an important role in the uptake, maintenance, and cessation of smoking behavior. However, little is known about the natural co-occurrence of social network features in adult smokers' networks and how multidimensional features of the network may connect to abstinence outcomes. The current investigation examined whether qualitatively distinct subgroups defined by multiple characteristics of the social network could be empirically identified within a sample of smokers initiating a quit attempt. Egocentric social network data were collected from 1571 smokers (58% female, 83% white) engaged in a 3-year smoking cessation clinical trial. Using nine indicator variables reflecting both risk and protective network features, finite mixture models identified five social network subgroups: High Stress/High Contact, Large and Supportive, Socially Disconnected, Risky Friends and Low Contact, and High Contact with Smokers and Light Drinkers. External variables supported the validity of the identified subgroups and the subgroups were meaningfully associated with baseline demographic, psychiatric, and tobacco measures. The Socially Disconnected subgroup was characterized by little social interaction, low levels of stress, and low exposure to social environmental smoking cues, and had the highest probability of successful cessation at 1 week compared with all other social network subgroups. At 6 months posttreatment its members had higher abstinence rates than members of the High Stress/High Contact subgroup and the Risky Friends and Low Contact subgroup. The present study highlights the heterogeneity of smokers' social milieus and suggests that network features, especially those entailing exposure to smoking cues and contexts, heighten risk for smoking cessation failure. (PsycINFO Database Record

Understanding Postdisaster Substance Use and Psychological Distress Using Concepts from the Self-Medication Hypothesis and Social Cognitive Theory

This article applies constructs from the Self-Medication Hypothesis and Social Cognitive Theory to explain the development of substance use and psychological distress after a disaster. A conceptual model is proposed, which employs a sequential mediation model, identifying perceived coping self-efficacy, psychological distress, and self-medication as pathways to substance use after a disaster. Disaster exposure decreases perceived coping self-efficacy, which, in turn, increases psychological distress and subsequently increases perceptions of self-medication in vulnerable individuals. These mechanisms lead to an increase in postdisaster substance use. Last, recommendations are offered to encourage disaster researchers to test more complex models in studies on postdisaster psychological distress and substance use.

Brain nicotinic acetylcholine receptors are involved in stress-induced potentiation of nicotine reward in rats

The aim of the present study was to examine the possible role of nicotinic acetylcholine receptors of the dorsal hippocampus (CA1 regions), the medial prefrontal cortex or the basolateral amygdala in the effect of acute or sub-chronic stress on nicotine-induced conditioned place preference. Our results indicated that subcutaneous administration of nicotine (0.2 mg/kg) induced significant conditioned place preference. Exposure to acute or sub-chronic elevated platform stress potentiated the response of an ineffective dose of nicotine. Pre-conditioning intra-CA1 (0.5-4 µg/rat) or intra-medial prefrontal cortex (0.2-0.3 µg/rat) microinjection of mecamylamine (a non-selective nicotinic acetylcholine receptor antagonist) reversed acute stress-induced potentiation of nicotine reward as measured in the conditioned place preference paradigm. By contrast, pre-conditioning intra-basolateral amygdala microinjection of mecamylamine (4 µg/rat) potentiated the effects of acute stress on nicotine reward. Our findings also showed that intra-CA1 or intra-medial prefrontal cortex, but not intra-basolateral amygdala, microinjection of mecamylamine (4 µg/rat) prevented the effect of sub-chronic stress on nicotine reward. These findings suggest that exposure to elevated platform stress potentiates the rewarding effect of nicotine which may be associated with the involvement of nicotinic acetylcholine receptors. It seems that there is a different contribution of the basolateral amygdala, the medial prefrontal cortex or the CA1 nicotinic acetylcholine receptors in stress-induced potentiation of nicotine-induced conditioned place preference.

Neural stress reactivity relates to smoking outcomes and differentiates between mindfulness and cognitive-behavioral treatments

Stress and negative affect are known contributors to drug use and relapse, and several known treatments for addictions include strategies for managing them. In the current study, we administered a well-established stress provocation during functional magnetic resonance imaging (fMRI) to 23 participants who completed either mindfulness training (MT; N=11) or the American Lung Association's Freedom From Smoking (FFS; N=12), which is a cognitive-behavioral treatment (CBT) for smoking cessation. Across the entire sample, we found that stress reactivity in several brain regions including the amygdala and anterior/mid insula was related to reductions in smoking after treatment, as well as at 3-month post-treatment follow-up. Moreover, conjunction analysis revealed that these same regions also differentiated between treatment groups such that the MT group showed lower stress-reactivity compared to the FFS/CBT group. This suggests that reduction in stress reactivity may be one of the mechanisms that underlie the efficacy of MT in reducing smoking over time. The findings have important implications for our understanding of stress, the neural and psychological mechanisms that underlie mindfulness-based treatments, and for smoking cessation treatments more broadly.

Alcohol consumption as a predictor of reactivity to smoking and stress cues presented in the natural environment of smokers

BACKGROUND AND RATIONALE

The high prevalence of co-occurring alcohol and tobacco use underscores the importance of understanding the influence of alcohol consumption on risk factors for smoking and relapse. Alcohol has been shown to impact reactivity to smoking and stress-related cues, both of which are common antecedents to smoking and smoking relapse.

OBJECTIVE

The objective of the current study is to examine associations between alcohol use, cigarette craving, and stress reactivity following exposure to smoking and stress cues delivered in participants' daily lives.

METHODS

Using cue-reactivity ecological momentary assessment (CREMA), adult smokers (n = 138) reported cigarette craving, stress, and past hour alcohol use on a mobile device four times per day for 2 weeks, resulting in a range of 4493-5983 data points per analysis. Questions were followed by exposure to pictorial neutral, stressful, or smoking cues delivered via the mobile device. Craving and affect were re-assessed following cue exposure.

RESULTS

Results showed that recent (past hour) alcohol use was significantly associated with increases in the following: (a) tonic (non-cue-elicited) cigarette craving, (b) stress cue-elicited cigarette craving, and (c) stress cue-elicited stress reactivity, in the context of high-baseline stress. There was no significant association between alcohol use and smoking cue-elicited craving.

CONCLUSIONS

Alcohol use may increase risk for smoking and relapse to smoking by increasing cigarette craving and, in certain contexts, stress following stress cue exposure. Though alcohol is known for its anxiolytic properties, under some conditions, it may increase reactivity to stress cues.

Transforming Life: A Broad View of the Developmental Origins of Health and Disease Concept from an Ecological Justice Perspective

The influential scientist Rene J. Dubos (1901–1982) conducted groundbreaking studies concerning early-life environmental exposures (e.g., diet, social interactions, commensal microbiota, housing conditions) and adult disease. However, Dubos looked beyond the scientific focus on disease, arguing that “mere survival is not enough”. He defined mental health as fulfilling human potential, and expressed concerns about urbanization occurring in tandem with disappearing access to natural environments (and elements found within them); thus modernity could interfere with health via “missing exposures”. With the advantage of emerging research involving green space, the microbiome, biodiversity and positive psychology, we discuss ecological justice in the dysbiosphere and the forces—financial inequity, voids in public policy, marketing and otherwise—that interfere with the fundamental rights of children to thrive in a healthy urban ecosystem and learn respect for the natural environment. We emphasize health within the developmental origins of health and disease (DOHaD) rubric and suggest that greater focus on positive exposures might uncover mechanisms of resiliency that contribute to maximizing human potential. We will entrain our perspective to socioeconomic disadvantage in developed nations and what we have described as “grey space”; this is a mental as much as a physical environment, a space that serves to insidiously reinforce unhealthy behavior, compromise positive psychological outlook and, ultimately, trans-generational health. It is a dwelling place that cannot be fixed with encephalobiotics or the drug-class known as psychobiotics.

Smoking in young adulthood among African Americans: Interconnected effects of supportive parenting in early adolescence, proinflammatory epitype, and young adult stress

We examined two potentially interacting, connected pathways by which parental supportiveness during early adolescence (ages 1-13) may come to be associated with later African American young adult smoking. The first pathway is between parental supportiveness and young adult stress (age 19), with stress, in turn, predicting increased smoking at age 20. The second pathway is between supportive parenting and tumor necrosis factor (TNF) gene methylation (i.e., TNFm), a proinflammatory epitype, with low levels indicating greater inflammatory potential and forecasting increased risk for smoking in response to young adult stress. In a sample of 382 African American youth residing in rural Georgia, followed from early adolescence (age 10-11) to young adulthood (age 20), supportive parenting indirectly predicted smoking via associations with young adult stress, IE = -0.071, 95% confidence interval [-0.132, -0.010]. In addition, supportive parenting was associated with TNFm measured at age 20 (r = .177, p = .001). Further, lower TNFm was associated with a significantly steeper slope (b = 0.583, p = .003) of increased smoking in response to young adult stress compared to those with higher TNFm (b = 0.155, p = .291), indicating an indirect, amplifying role for supportive parenting via TNFm. The results suggest that supportive parenting in early adolescence may play a role in understanding the emergence of smoking in young adulthood.

Influencing Genomic Change and Cancer Disparities through Neighborhood Chronic Toxic Stress Exposure: A Research Framework

Black Americans have disproportionately higher incidence and mortality rates for many cancers. These disparities may be related to genomic changes that occur from exposure to chronic toxic stress and may result from conditions associated with living in racially segregated neighborhoods with high rates of concentrated poverty. The purpose of this article is to present a nursing research framework for developing and testing neighborhood-level interventions that have the potential to mitigate exposure to neighborhood-associated chronic toxic stress, improve individual-level genomic sequelae and cancer outcomes, and reduce cancer health disparities of Black Americans. Public health nursing researchers should collaborate with local officials to determine ways to reduce neighborhood-level stress. Intermediate outcomes can be measured using genomic or other stress biomarkers, and long-term outcomes can be measured by evaluating population-level cancer incidence and mortality.

Comparative effectiveness of adding weight control simultaneously or sequentially to smoking cessation quitlines: study protocol of a randomized controlled trial

Background

Prevalence of multiple health risk behaviors is growing, and obesity and smoking are costly. Weight gain associated with quitting smoking is common and can interfere with quit success. Efficacy of adding weight management to tobacco cessation treatment has been tested with women in group sessions over an extended period of time, but has never been tested in real-world settings with men and women seeking help to quit. This paper describes the Best Quit study which tests the effectiveness of delivering tobacco and weight control interventions via existing quitline infrastructures.

Methods

Eligible and consenting smokers (n = 2550) who call a telephone quitline will be randomized to one of three groups; the standard quitline or standard quitline plus a weight management program added either simultaneously or sequentially to the tobacco program. The study aims to test: 1) the effectiveness of the combined intervention on smoking cessation and weight, 2) the cost-effectiveness of the combined intervention on cessation and weight and 3) theoretically pre-specified mediators of treatment effects on cessation: reduced weight concerns, increased outcome expectancies about quitting and improved self-efficacy about quitting without weight gain.

Baseline, 6 month and 12 month data will be analyzed using multivariate statistical analyses and groups will be compared on treatment adherence, quit rates and change in weight among abstinent participants. To determine if the association between group assignment and primary outcomes (30-day abstinence and change in weight at 6 months) is moderated by pre-determined baseline and process measures, interaction terms will be included in the regression models and their significance assessed.

Discussion

This study will generate information to inform whether adding weight management to a tobacco cessation intervention delivered by phone, mail and web for smokers seeking help to quit will help or harm quit rates and whether a simultaneous or sequential approach is better at increasing abstinence and reducing weight gain post quit. If proven effective, the combined intervention could be disseminated across the U.S. through quitlines and could encourage additional smokers who have not sought cessation treatment for fear of gaining weight to make quit attempts.

Trial registration

Clinicaltrials.gov NCT01867983. Registered: May 30, 2013

Electronic supplementary material

The online version of this article (doi:10.1186/s12889-016-3231-6) contains supplementary material, which is available to authorized users.

An experimental test of the effect of acute anxious arousal and anxiety sensitivity on negative reinforcement smoking

INTRODUCTION

Although anxiety sensitivity has been reliably associated with smoking-anxiety comorbidity, there has not been a test of whether this construct moderates the effect of acute anxious arousal on actual smoking behavior. The present study utilized an experimental design to test the moderating role of anxiety sensitivity on laboratory-induced anxious arousal in terms of smoking urges and topography (puff style).

METHOD

Participants were adult daily smokers (n=90; Mage=43.6 SD =9.7); average 15.8 cigarettes per day). A between-subjects design was used; participants were randomly assigned to complete a biological challenge procedure consisting of either a single vital capacity inhalation of 35% carbon dioxide (CO2)-enriched air mixture or compressed room air. Smoking urges and smoking topography (puff behavior) were assessed before and after the challenge.

RESULTS

Results revealed a significant interaction between anxiety sensitivity and experimental condition (b=-9.96, p=0.014), such that high anxiety sensitive smokers exposed to 35% CO2-enriched air reported significantly lower levels of smoking urges, relative to low anxiety sensitive smokers; the conditional effect of anxiety sensitivity was not observed for the room air condition. There were no significant interaction effects of experimental manipulation by anxiety sensitivity for any of the smoking topography outcomes.

DISCUSSION

The present results suggest for smokers with higher levels of anxiety sensitivity, the acute experience of anxious arousal is related to decreased subjective smoking urges. These data invite future research to explore the reasons for dampened smoking urges, including cardiorespiratory symptom severity.

Mendelian randomization study of adiposity-related traits and risk of breast, ovarian, prostate, lung and colorectal cancer

BACKGROUND

Adiposity traits have been associated with risk of many cancers in observational studies, but whether these associations are causal is unclear. Mendelian randomization (MR) uses genetic predictors of risk factors as instrumental variables to eliminate reverse causation and reduce confounding bias. We performed MR analyses to assess the possible causal relationship of birthweight, childhood and adult body mass index (BMI), and waist-hip ratio (WHR) on the risks of breast, ovarian, prostate, colorectal and lung cancers.

METHODS

We tested the association between genetic risk scores and each trait using summary statistics from published genome-wide association studies (GWAS) and from 51 537 cancer cases and 61 600 controls in the Genetic Associations and Mechanisms in Oncology (GAME-ON) Consortium.

RESULTS

We found an inverse association between the genetic score for childhood BMI and risk of breast cancer [odds ratio (OR) = 0.71 per standard deviation (s.d.) increase in childhood BMI; 95% confidence interval (CI): 0.60, 0.80; P = 6.5 × 10(-5)). We also found the genetic score for adult BMI to be inversely associated with breast cancer risk (OR = 0.66 per s.d. increase in BMI; 95% CI: 0.57, 0.77; P = 2.5 × 10(-7)), and positively associated with ovarian cancer (OR = 1.35; 95% CI: 1.05, 1.72; P = 0.017), lung cancer (OR = 1.27; 95% CI: 1.09, 1.49; P = 2.9 × 10(-3)) and colorectal cancer (OR = 1.39; 95% CI: 1.06, 1.82, P = 0.016). The inverse association between genetically predicted adult BMI and breast cancer risk remained even after adjusting for directional pleiotropy via MR-Egger regression.

CONCLUSIONS

Findings from this study provide additional understandings of the complex relationship between adiposity and cancer risks. Our results for breast and lung cancer are particularly interesting, given previous reports of effect heterogeneity by menopausal status and smoking status.