Impact of alcohol-promoting and alcohol-warning advertisements on alcohol consumption, affect, and implicit cognition in heavy-drinking young adults: A laboratory-based randomized controlled trial

$\textbf{OBJECTIVES}$: There is sparse evidence regarding the effect of alcohol-advertising exposure on alcohol consumption among heavy drinkers. This study aimed to assess the immediate effects of alcohol-promoting and alcohol-warning video advertising on objective alcohol consumption in heavy-drinking young adults, and to examine underlying processes. $\textbf{DESIGN}$: Between-participants randomized controlled trial with three conditions. $\textbf{METHODS}$: Two hundred and four young adults (aged 18-25) who self-reported as heavy drinkers were randomized to view one of three sets of 10 video advertisements that included either (1) alcohol-promoting, (2) alcohol-warning, or (3) non-alcohol advertisements. The primary outcome was the proportion of alcoholic beverages consumed in a sham taste test. Affective responses to advertisements, implicit alcohol approach bias, and alcohol attentional bias were assessed as secondary outcomes and possible mediators. Typical alcohol consumption, Internet use, and television use were measured as covariates. $\textbf{RESULTS}$: There was no main effect of condition on alcohol consumption. Participants exposed to alcohol-promoting advertisements showed increased positive affect and an increased approach/reduced avoidance bias towards alcohol relative to those exposed to non-alcohol advertisements. There was an indirect effect of exposure to alcohol-warning advertisements on reduced alcohol consumption via negative affect experienced in response to these advertisements. $\textbf{CONCLUSIONS}$: Restricting alcohol-promoting advertising could remove a potential influence on positive alcohol-related emotions and cognitions among heavy-drinking young adults. Producing alcohol-warning advertising that generates negative emotion may be an effective strategy to reduce alcohol consumption.This work was jointly funded by the National Institute for Health Research School for Public Health Research, and by the Department of Health Policy Research Program (Policy Research Unit in Behaviour and Health [PR-UN-0409-10109])

Impact of alcohol promoting and alcohol warning advertisements on alcohol consumption, affect, and implicit cognition in heavy drinking young adults: a laboratory-based randomized controlled trial

Objectives: There is sparse evidence regarding the effect of alcohol advertising exposure on alcohol consumption among heavy drinkers. This study aimed to assess the immediate effects of alcohol promoting and alcohol warning video advertising on objective alcohol consumption in heavy drinking young adults, and to examine underlying processes. Design: Between-participants randomized controlled trial with three conditions. Methods: Two hundred and four young adults (aged 18-25) who self-reported as heavy drinkers were randomized to view one of three sets of 10 video advertisements that included either: (i) alcohol promoting, (ii) alcohol warning, or (iii) non-alcohol advertisements. The primary outcome was the proportion of alcoholic beverages consumed in a sham taste test. Affective responses to advertisements, implicit alcohol approach bias, and alcohol attentional bias were assessed as secondary outcomes and possible mediators. Typical alcohol consumption, internet use, and television use were measured as covariates. Results: There was no main effect of condition on alcohol consumption. Participants exposed to alcohol promoting advertisements showed increased positive affect and an increased approach/reduced avoidance bias towards alcohol relative to those exposed to non-alcohol advertisements. There was an indirect effect of exposure to alcohol warning advertisements on reduced alcohol consumption via negative affect experienced in response to these advertisements. Conclusions: Restricting alcohol promoting advertising could remove a potential influence on positive alcohol-related emotions and cognitions among heavy drinking young adults. Producing alcohol warning advertising that generates negative emotion may be an effective strategy to reduce alcohol consumption

Functional Analysis of a Breast Cancer-Associated Mutation in the Intracellular Domain of the Metalloprotease ADAM12

A recently identified breast cancer-associated mutation in the metalloprotease ADAM12 alters a potential dileucine trafficking signal, which could affect protein processing and cellular localization. ADAM12 belongs to the group of A Disintegrin And Metalloproteases (ADAMs), which are typically membrane-associated proteins involved in ectodomain shedding, cell-adhesion, and signaling. ADAM12 as well as several members of the ADAM family are over-expressed in various cancers, correlating with disease stage. Three breast cancer-associated somatic mutations were previously identified in ADAM12, and two of these, one in the metalloprotease domain and another in the disintegrin domain, were investigated and found to result in protein misfolding, retention in the secretory pathway, and failure of zymogen maturation. The third mutation, p.L792F in the ADAM12 cytoplasmic tail, was not investigated, but is potentially significant given its location within a di-leucine motif, which is recognized as a potential cellular trafficking signal. The present study was motivated both by the potential relevance of this documented mutation to cancer, as well as for determining the role of the di-leucine motif in ADAM12 trafficking. Expression of ADAM12 p.L792F in mammalian cells demonstrated quantitatively similar expression levels and zymogen maturation as wild-type (WT) ADAM12, as well as comparable cellular localizations. A cell surface biotinylation assay demonstrated that cell surface levels of ADAM12 WT and ADAM12 p.L792F were similar and that internalization of the mutant occurred at the same rate and extent as for ADAM12 WT. Moreover, functional analysis revealed no differences in cell proliferation or ectodomain shedding of epidermal growth factor (EGF), a known ADAM12 substrate between WT and mutant ADAM12. These data suggest that the ADAM12 p.L792F mutation is unlikely to be a driver (cancer causing)-mutation in breast cancer

Trait urgency and gambling problems in young people by age: The mediating role of decision-making processes

Although the personality trait of urgency has been linked to problem gambling, less is known about psychological mechanisms that mediate the relationship between urgency and problem gambling. One individual variable of potential relevance to impulsivity and addictive disorders is age. The aims of this study were to examine: (i) a theoretical model associating urgency and gambling problems, (ii) the mediating effects of decision-making processes (operationalized as preference for small/immediate rewards and lower levels of deliberative decision-making); and (iii) age differences in these relationships. Participants comprised 986 students (64% male; mean age=19.51 years; SD=2.30) divided into three groups: 16-17 years, 18-21 years, and 22-25 years. All participants completed measures of urgency, problem gambling, and a delay-discounting questionnaire involving choices between a smaller amount of money received immediately and a larger amount of money received later. Participants were also asked to reflect on their decision-making process. Compared to those aged 16-17 years and 22-25 years, participants aged 18-21 years had a higher level of gambling problems and decreased scores on lower levels of deliberative decision-making. Higher levels of urgency were associated with higher levels of gambling problems. The association was mediated by a lower level of deliberative decision-making and preference for an immediate/small reward. A distinct pathway was observed for lower levels of deliberative decision-making. Young people who tend to act rashly in response to extreme moods, had lower levels of deliberative decision-making, that in turn were positively related to gambling problems. This study highlights unique decision-making pathways through which urgency trait may operate, suggesting that those developing prevention and/or treatment strategies may want to consider the model’s variables, including urgency, delay discounting, and deliberative decision-making

Developmental Considerations for Assessment and Treatment of Impulsivity in Older Adults

Impulsivity is an important factor in many clinical disorders, especially alcohol and substance use disorders. Most of the research on impulsivity in this domain has focused on adolescence and young adulthood, as this developmental period is characterized by onset of and escalation in alcohol and substance use, likely driven in part by brain development patterns. Although many individuals eventually “mature out” of these behaviors in middle adulthood, a critical subset of people do not. The role of impulsivity in middle-to-older adulthood, when certain individuals transition from normative to disordered substance use, has not been carefully examined. The goal of this paper is to review the literature on measuring and modifying impulsivity from adolescence through older adulthood, with a special focus on middle-to-older adulthood. We propose that impulsivity research should include data on middle-to-older adulthood as an important time of transition to disordered use. We consider how impulsivity might have unique meaning at different stages of the adult lifespan and suggest modifications for assessing and treating impulsivity in older adults

Depressive symptoms, negative urgency and substance use initiation in adolescents

BACKGROUND: Studies show depressive symptoms are associated with substance use in adolescents, but the mechanism underlying this association is still unclear. This study investigated negative urgency – the disposition to rash action during emotional states – as a factor explaining relations between depressive symptoms and use of several substances. METHODS: In this cross-sectional study, 476 adolescents (mean age 14.5 years) completed self-report surveys. Regression models and products of coefficient analyses examined the overall relation of depressive symptoms to substance use and negative urgency as a statistical mediator of this association RESULTS: Depression levels associated with increased likelihood of lifetime use of cigarettes, other forms of tobacco, marijuana, alcohol, inhalants, prescription painkillers, and any substance. Relations between depression levels and lifetime use of alcohol, inhalants, and any substance were accounted for (i.e., statistically mediated) by negative urgency. In adolescents endorsing lifetime use, depression levels associated with younger age of first use of other forms of tobacco and alcohol as well as use frequency of cigarette, alcohol, and composite frequency. Negative urgency accounted for the covariance between depression level and age of first use of alcohol, but did not for other forms of tobacco or frequency of use of any substances. CONCLUSIONS: Depression levels are associated with lifetime use of a variety of substances in early adolescence and targeting this risk factor with preventive efforts may be useful in reducing risk. Negative urgency may be an important target for interventions aimed at alcohol and inhalant use