Volume 177 , 1 August 2017, Pages 268-276 Reward-related frontostriatal activity and smoking behavior among adolescents in treatment for smoking cessation Author links open overlay panel Kathleen A.Garrisona One of the first longitudinal fMRI studies of smoking cessation treatment in adolescents. Adolescents show increased non-drug reward-related brain activity pre- to post-treatment. Increases in reward-related brain activity were associated with smoking abstinence. Tobacco use is often initiated during adolescence and continued into adulthood despite desires to quit. A better understanding of the neural correlates of abstinence from smoking in adolescents may inform more effective smoking cessation interventions. Neural reward systems are implicated in tobacco use disorder, and adolescent smokers have shown reduced reward-related ventral striatal activation related to increased smoking. The current study evaluated nondrug reward anticipation in adolescent smokers using a monetary incentive delay task in fMRI pre- and post- smoking cessation treatment (n = 14). This study tested how changes in neural responses to reward anticipation pre- to post-treatment were related to reduced smoking. An exploratory analysis in a larger sample of adolescents with only pre-treatment fMRI (n = 28) evaluated how neural responses to reward anticipation were related to behavioral inhibition and behavioral activation scales. Adolescent smokers showed pre- to post-treatment increases in reward anticipation-related activity in the bilateral nucleus accumbens and insula, and medial prefrontal cortex, and greater increases in reward anticipation-related activity were correlated with larger percent days of smoking abstinence during treatment. These findings suggest that reduced smoking during smoking cessation treatment is associated with a “recovery of function” in frontostriatal responses to nondrug reward anticipation in adolescent smokers, although comparison with a developmental control group of adolescent nonsmokers is warranted.
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6, 2016-- Philip Morris International Inc. (“PMI”) (NYSE / Euronext Paris: PM) on Dec. 5 submitted a Modified Risk Tobacco Product (MRTP) application for its electronically heated tobacco product with the U.S. Food and Drug Administration’s (FDA) Center for Tobacco Products. This is consistent with the company’s stated goal of submitting its MRTP application in 2016. PMI anticipates the FDA taking a minimum of 60 days to complete an administrative review to determine whether to accept the application for substantive review. Philip Morris International Inc. (PMI) is the world’s leading international tobacco company, with six of the world's top 15 international brands and products sold in more than 180 markets. In addition to the manufacture and sale of cigarettes, including Marlboro, the number one global cigarette brand, and other tobacco products, PMI is engaged in the development and commercialization of Reduced-Risk Products (“RRPs”). RRPs is the term PMI uses to refer to products with the potential to reduce individual risk and population harm in comparison to smoking cigarettes.
Volume 177 , 1 August 2017, Pages 187-193 Trends in utilization of smoking cessation agents before and after the passage of FDA boxed warning in the United States Author links open overlay panel DrishtiShaha The FDA issued a black box warning (BBW) on bupropion and varenicline in 2009. We examined the trends in use of bupropion and varenicline before and after the BBW. We observed a significant decline in the use of varenicline after the passage of BBW. The BBW was not associated with decline in the use of bupropion. Passage of BBW may have a substantial impact on the utilization of certain medications. In 2009, the FDA required a black box warning (BBW) on bupropion and varenicline, the two commonly prescribed smoking cessation agents due to reports of adverse neuropsychiatric events. We investigated if there was a decline in use of bupropion and varenicline after the BBW by comparing the percent using these medications before and after BBW. We conducted a retrospective observational study using data from the Medical Expenditure Panel Survey from 2007 to 2014. The study sample consisted of adult smokers, who were advised by their physicians to quit smoking. We divided the time period into “pre-warning”, “post-warning: immediate”, and “post-warning: late.” Unadjusted analysis using chi-square tests and adjusted analyses using logistic regressions were conducted to evaluate the change in bupropion and varenicline use before and after the BBW.
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