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https://www.readbyqxmd.com/read/28393086/nicotine-delivery-and-vaping-behavior-during-ad-libitum-e-cigarette-access
#1
Gideon St Helen, Kathryn C Ross, Delia A Dempsey, Christopher M Havel, Peyton Jacob, Neal L Benowitz
OBJECTIVE: To characterize vaping behavior and nicotine intake during ad libitum e-cigarette access. METHODS: Thirteen adult e-cigarette users had 90 minutes of videotaped ad libitum access to their usual e-cigarette. Plasma nicotine was measured before and every 15 minutes after the first puff; subjective effects were measured before and after the session. RESULTS: Average puff duration and interpuff interval were 3.5±1.4 seconds (±SD) and 118±141 seconds, respectively...
October 2016: Tobacco Regulatory Science
https://www.readbyqxmd.com/read/28392919/respiratory-bronchiolitis-associated-interstitial-lung-disease-secondary-to-electronic-nicotine-delivery-system-use-confirmed-with-open-lung-biopsy
#2
Mark Flower, Lakshmy Nandakumar, Mahendra Singh, David Wyld, Morgan Windsor, David Fielding
As a modern phenomenon, there is currently limited understanding of the possible toxic effects and broader implications of electronic nicotine delivery systems (ENDS). Large volumes of aerosolized particles are inhaled during "vaping" and there are now an increasing number of case reports demonstrating toxic effects of ENDS, as well as human studies demonstrating impaired lung function in users. This article presents a case of respiratory bronchiolitis interstitial lung disease (RB-ILD) precipitated by vaping in a 33-year-old male with 10 pack years of traditional cigarette and prior treatment for mixed germ cell tumour...
May 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28376978/obesity-and-cigarette-smoking-extending-the-link-to-e-cigarette-vaping-use
#3
H Isabella Lanza, Patricia Pittman, Jennifer Batshoun
OBJECTIVES: In recent years, electronic tobacco (e-cigarette/vaping) use among young adults has grown exponentially. Given past research linking obesity and cigarette smoking, assessing whether this relationship extends to electronic tobacco use is warranted. The current study examined weight status as a correlate of substance use patterns reflecting electronic tobacco use. METHODS: Survey data were collected from a convenience sample of 452 (59% female) undergraduates attending a large, public university during the 2015-2016 academic year...
May 1, 2017: American Journal of Health Behavior
https://www.readbyqxmd.com/read/28371890/type-of-e-cigarette-device-used-among-adolescents-and-young-adults-findings-from-a-pooled-analysis-of-8-studies-of-2-166-vapers
#4
Jessica L Barrington-Trimis, Laura A Gibson, Bonnie Halpern-Felsher, Melissa B Harrell, Grace Kong, Suchitra Krishnan-Sarin, Adam M Leventhal, Alexandra Loukas, Rob McConnell, Scott R Weaver
Background: A recent study of adult smokers who vape found that disposable/cigalike electronic (e-) cigarette devices were more commonly used than later generation devices. However, whether these trends reflect patterns among adolescents and young adults, many of whom have limited or no history of combustible cigarette use, has not been studied. Methods: Participants were drawn from 8 locally, regionally, and U.S. nationally representative studies. Surveys took place between Fall 2014 and Spring 2016; participants were residents of California (3 studies), Texas (2 studies), Connecticut (1 study), or randomly selected from the United States population (2 studies)...
March 22, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28371830/vape-shop-density-and-socio-demographic-disparities-a-u-s-census-tract-analysis
#5
Hongying Dai, Jianqiang Hao, Delwyn Catley
Introduction-: Vape shops are an emerging business specializing in the sales and promotion of e-cigarette, e-juice and other vaping products. This study sought to evaluate the associations between vape shop density and socio-demographic characteristics at the U.S. census tract level. Methods-: Vape shop data (n=9,943) were collected from three online directories: Yelp.com, Yellowpages.com, and Guidetovaping.com. Addresses of vape shops were geocoded and the density per 10,000 people was estimated at each U...
March 20, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28339800/the-dark-cloud-of-recreational-drugs-and-vaping
#6
M S Blundell, P I Dargan, D M Wood
Electronic cigarettes (e-cigarettes) are increasing in popularity with 19% of UK smokers reporting to have used them. The ability to regulate the evaporation temperature in newer electronic nicotine delivery systems (ENDS) facilitates the potential for use of these devices to 'vape' cannabis, novel psychoactive substances (NPS) and other recreational drugs. Vaping cannabis does have the potential to reduce tobacco use and combustible cannabis/tobacco-related disease, but with over one-third of UK adults reporting life-time use of recreational drugs and increasing e-cigarette uptake in adolescent groups the misuse of these devices poses a serious potential public health risk...
March 9, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28323498/predictors-of-adult-e-cigarette-users-vaporizing-cannabis-using-e-cigarettes-and-vape-pens
#7
Meghan E Morean, Noah Lipshie, Margo Josephson, Dawn Foster
BACKGROUND: Given limited extant research, we assessed the use of portable, battery-powered cannabis vaporizers by adult e-cigarette users. METHODS: 522 adult vapers completed an online survey. Demographics; lifetime and past-month cannabis vaporization via e-cigarettes/vape-pens; preferences for hash oil, D-9-tetrahydrocannabinol (THC) wax, or dried buds; and cannabis vaporization beliefs and motives were examined. Demographics, age of e-cigarette onset, e-cigarette use frequency, state-level legal status of cannabis, cannabis vaping beliefs/motives, and impulsivity were examined as predictors of lifetime cannabis vaporization, past-month cannabis vaporization, and cannabis vaping frequency...
March 21, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28323467/sales-of-nicotine-containing-electronic-cigarette-products-united-states-2015
#8
Kristy L Marynak, Doris G Gammon, Todd Rogers, Ellen M Coats, Tushar Singh, Brian A King
OBJECTIVES: To assess the proportion of electronic cigarette (e-cigarette) products sold in the United States that contain nicotine according to retail scanner data. METHODS: We obtained unit sales data from January 11, 2015, to December 12, 2015, from The Nielsen Company for convenience stores; supermarkets; mass merchandisers; drug, club, and dollar stores; and Department of Defense commissaries. The data did not include purchases from tobacco specialty shops, "vape shops," or online sources...
May 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28289597/daily-users-compared-to-less-frequent-users-find-vape-as-or-more-satisfying-and-less-dangerous-than-cigarettes-and-are-likelier-to-use-non-cig-alike-vaping-products
#9
Lynn T Kozlowski, D Lynn Homish, Gregory G Homish
We assessed the roles of perceived satisfaction and perceived danger and vaping-product-type as correlates of more frequent use of vaping products. In a baseline assessment of a longitudinal study of US Army Reserve/National Guard Soldiers and their partners (New York State, USA, 2014-2016), participants were asked about current use of vaping products (e-cigarettes) and perceived satisfaction and danger in comparison to cigarettes as well as type of product used. Fisher-exact tests and multiple ordinal logistic regressions were used...
June 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28285828/national-and-state-trends-in-sales-of-cigarettes-and-e-cigarettes-u-s-2011-2015
#10
Kristy L Marynak, Doris G Gammon, Brian A King, Brett R Loomis, Erika B Fulmer, Teresa W Wang, Todd Rogers
INTRODUCTION: In recent years, self-reported cigarette smoking has declined among youth and adults, while electronic cigarette (e-cigarette) use has increased. However, sales trends for these products are less certain. This study assessed national and state patterns of U.S. cigarette and e-cigarette unit sales. METHODS: Trends in cigarette and e-cigarette unit sales were analyzed using retail scanner data from September 25, 2011 through January 9, 2016 for: (1) convenience stores; and (2) all other outlets combined, including supermarkets, mass merchandisers, drug, dollar, and club stores, and military commissaries (online, tobacco-only, and "vape" shops were not available)...
February 24, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28277706/user-identified-positive-outcome-expectancies-of-electronic-cigarette-use-a-concept-mapping-study
#11
Eric K Soule, Sarah F Maloney, Mignonne C Guy, Thomas Eissenberg, Pebbles Fagan
Electronic cigarette (ECIG) use is growing in popularity, but little is known about the perceived positive outcomes of ECIG use. This study used concept mapping (CM) to examine positive ECIG outcome expectancies. Sixty-three past 30-day ECIG users (38.1% female) between the ages of 18 and 64 (M = 37.8, SD = 13.3) completed a CM module. In an online program, participants provided statements that completed a prompt: "A specific positive, enjoyable, or exciting effect (i.e., physical or psychological) that I have experienced WHILE USING or IMMEDIATELY AFTER USING an electronic cigarette/electronic vaping device is...
March 9, 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/28273096/benzene-formation-in-electronic-cigarettes
#12
James F Pankow, Kilsun Kim, Kevin J McWhirter, Wentai Luo, Jorge O Escobedo, Robert M Strongin, Anna K Duell, David H Peyton
BACKGROUND/OBJECTIVE: The heating of the fluids used in electronic cigarettes ("e-cigarettes") used to create "vaping" aerosols is capable of causing a wide range of degradation reaction products. We investigated formation of benzene (an important human carcinogen) from e-cigarette fluids containing propylene glycol (PG), glycerol (GL), benzoic acid, the flavor chemical benzaldehyde, and nicotine. METHODS/MAIN RESULTS: Three e-cigarette devices were used: the JUULTM "pod" system (provides no user accessible settings other than flavor cartridge choice), and two refill tank systems that allowed a range of user accessible power settings...
2017: PloS One
https://www.readbyqxmd.com/read/28248987/why-do-people-use-electronic-nicotine-delivery-systems-electronic-cigarettes-a-content-analysis-of-twitter-2012-2015
#13
John W Ayers, Eric C Leas, Jon-Patrick Allem, Adrian Benton, Mark Dredze, Benjamin M Althouse, Tess B Cruz, Jennifer B Unger
The reasons for using electronic nicotine delivery systems (ENDS) are poorly understood and are primarily documented by expensive cross-sectional surveys that use preconceived close-ended response options rather than allowing respondents to use their own words. We passively identify the reasons for using ENDS longitudinally from a content analysis of public postings on Twitter. All English language public tweets including several ENDS terms (e.g., "e-cigarette" or "vape") were captured from the Twitter data stream during 2012 and 2015...
2017: PloS One
https://www.readbyqxmd.com/read/28248584/-tree-in-bloom-severe-acute-lung-injury-induced-by-vaping-cannabis-oil
#14
Tao He, Margarita Oks, Michael Esposito, Harry Steinberg, Mina Makaryus
No abstract text is available yet for this article.
March 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28212302/the-importance-of-conditioned-stimuli-in-cigarette-and-e-cigarette-craving-reduction-by-e-cigarettes
#15
Martijn Van Heel, Dinska Van Gucht, Koen Vanbrabant, Frank Baeyens
This study examined the impact of four variables pertaining to the use of e-cigarettes (e-cigs) on cravings for tobacco cigarettes and for e-cigs after an overnight abstinence period. The four variables were the nicotine level, the sensorimotor component, the visual aspect, and the aroma of the e-cig. In an experimental study, 81 participants without prior vaping experience first got acquainted with using e-cigs in a one-week tryout period, after which they participated in a lab session assessing the effect of five minutes of vaping following an abstinence period of 12 h...
February 15, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28195231/solvent-chemistry-in-the-electronic-cigarette-reaction-vessel
#16
R Paul Jensen, Robert M Strongin, David H Peyton
Knowledge of the mechanism of formation, levels and toxicological profiles of the chemical products in the aerosols (i.e., vapor plus particulate phases) of e-cigarettes is needed in order to better inform basic research as well as the general public, regulators, and industry. To date, studies of e-cigarette emissions have mainly focused on chromatographic techniques for quantifying and comparing the levels of selected e-cigarette aerosol components to those found in traditional cigarettes. E-cigarettes heat and aerosolize the solvents propylene glycol (PG) and glycerol (GLY), thereby affording unique product profiles as compared to traditional cigarettes...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28170247/response-to-comment-on-flavoring-compounds-dominate-toxic-aldehyde-production-during-e-cigarette-vaping
#17
Andrey Khlystov, Vera Samburova
No abstract text is available yet for this article.
February 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28170231/comment-on-flavoring-compounds-dominate-toxic-aldehyde-production-during-e-cigarette-vaping
#18
Konstantinos Farsalinos, Gene Gillman, Kurt Kistler, Nikoletta Yannovits
No abstract text is available yet for this article.
February 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28167683/e-cigarette-use-as-a-predictor-of-cigarette-smoking-results-from-a-1-year-follow-up-of-a-national-sample-of-12th-grade-students
#19
Richard Miech, Megan E Patrick, Patrick M O'Malley, Lloyd D Johnston
OBJECTIVE: To prospectively examine vaping as a predictor of future cigarette smoking among youth with and without previous cigarette smoking experience. A secondary aim is to investigate whether vaping may desensitise youth to the dangers of smoking. METHODS: Analysis of prospective longitudinal panel data from the nationally representative Monitoring the Future study. The analysis is based on 347 12th grade students who were part of a randomly selected subsample that completed in-school surveys in 2014 and were resurveyed 1-year later...
February 6, 2017: Tobacco Control
https://www.readbyqxmd.com/read/28157590/delivery-of-nicotine-aerosol-to-mice-via-a-modified-electronic-cigarette-device
#20
Timothy W Lefever, Youn O K Lee, Alexander L Kovach, Melanie A R Silinski, Julie A Marusich, Brian F Thomas, Jenny L Wiley
BACKGROUND: Although both men and women use e-cigarettes, most preclinical nicotine research has focused on its effects in male rodents following injection. The goals of the present study were to develop an effective e-cigarette nicotine delivery system, to compare results to those obtained after subcutaneous (s.c.) injection, and to examine sex differences in the model. METHODS: Hypothermia and locomotor suppression were assessed following aerosol exposure or s...
March 1, 2017: Drug and Alcohol Dependence
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