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Edwards S, Puljević C, Dean JA, Gilks C, Boyd MA, Watts P, Howard C, Gartner CE. Perceptions of nicotine vaping products among Australians living with HIV. AIDS Care 2024:1-11. [PMID: 39102745 DOI: 10.1080/09540121.2024.2372718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 06/21/2024] [Indexed: 08/07/2024]
Abstract
People living with HIV (PLHIV) are two to three times more likely to smoke tobacco compared to the general community. Evidence from the general population suggests that nicotine vaping products (NVPs) can be acceptable and effective smoking cessation aids, but there is limited evidence on the extent to which this is the case among PLHIV. This manuscript reports findings from the Tobacco Harm Reduction with Vaporised Nicotine (THRiVe) trial, a mixed-methods study investigating the feasibility of NVPs as smoking cessation aids among 29 PLHIV who smoked tobacco. Surveys and semi-structured interviews explored participants' experiences and perceptions of NVPs, their features and functions, and support for various NVP regulatory policy options. Participants described seven reasons why NVPs were acceptable cessation aids: they satisfied nicotine cravings; differences between NVPs and cigarettes facilitated habit breaking; fewer adverse effects compared to traditional cessation aids; NVPs allowed for a "weaning process" rather than requiring abrupt abstinence; tobacco became increasingly unpleasant to smoke; NVPs provided an increased sense of control; and participants experienced a deeper understanding of personal smoking behaviours. This study provides valuable insight into the preferred features of NVPs among PLHIV and reasons why NVPs may be effective for promoting smoking cessation among PLHIV.
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Affiliation(s)
- Stephanie Edwards
- NHMRC Centre of Research Excellence on Achieving the Tobacco Endgame, School of Public Health, The University of Queensland, Brisbane, Australia
| | - Cheneal Puljević
- NHMRC Centre of Research Excellence on Achieving the Tobacco Endgame, School of Public Health, The University of Queensland, Brisbane, Australia
| | - Judith A Dean
- Poche Centre for Indigenous Health, The University of Queensland, Brisbane, Australia
| | - Charles Gilks
- School of Public Health, The University of Queensland, Brisbane, Australia
| | - Mark A Boyd
- Faculty of Health & Medical Sciences, University of Adelaide, Adelaide, Australia
- Northern Adelaide Local Health Network (NALHN), Adelaide, Australia
- Kirby Institute, University of New South Wales, Sydney, Australia
| | - Peter Watts
- Queensland Positive People, Brisbane, Australia
| | | | - Coral E Gartner
- NHMRC Centre of Research Excellence on Achieving the Tobacco Endgame, School of Public Health, The University of Queensland, Brisbane, Australia
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Cho YJ, Mehta T, Hinton A, Sloan R, Nshimiyimana J, Tackett AP, Roberts ME, Brinkman MC, Wagener TL. E-Cigarette Nicotine Delivery Among Young Adults by Nicotine Form, Concentration, and Flavor: A Crossover Randomized Clinical Trial. JAMA Netw Open 2024; 7:e2426702. [PMID: 39120901 PMCID: PMC11316233 DOI: 10.1001/jamanetworkopen.2024.26702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 06/12/2024] [Indexed: 08/10/2024] Open
Abstract
Importance Concerns have been raised about the abuse liability of modern e-cigarettes that use acidic additives to form nicotine salts, making the inhalation of nicotine smoother than freebase nicotine. Objective To examine the effects of nicotine form and concentration and e-liquid flavor on subjective effects ratings, vaping behavior, and nicotine uptake among young adults who use e-cigarettes. Design, Setting, and Participants In this single-blind, within-participant, crossover randomized clinical trial, a convenience sample of young adults aged 21 to 25 years who currently used e-cigarettes was recruited from December 2021 to August 2023, for in-person research laboratory visits in Columbus, Ohio. Interventions Participants completed up to 9 vaping sessions, starting with their usual e-cigarette brand in the first session followed by 1 of 8 laboratory-prepared e-liquids in a randomly assigned order in each subsequent session. Prepared e-liquids varied by nicotine form (salt-based vs freebase), nicotine concentration (5% vs 1% weight per weight), and flavor (menthol vs tobacco). Each session included a 5-minute, 10-puff standardized vaping period followed by 30 minutes of ad libitum vaping. Main Outcomes and Measures At 4 time points (0, 5, 10, and 35 minutes) during each vaping session, plasma samples were collected for assessing nicotine uptake, and self-reports of urges, craving, and withdrawal were collected via questionnaires. Positive subjective effects were self-reported after 35 minutes of vaping using a visual analog scale; urges and cravings were reported using the Questionnaire of Smoking Urges (QSU). Puff topography data were collected throughout each vaping session. Results Seventy-two participants (mean [SD] age, 22.4 [1.4] years; 42 [58.3%] female) who sampled at least 1 laboratory-prepared e-liquid composed the analytic sample. Salt-based (vs freebase) nicotine e-liquids increased nicotine intake, with 5% salt-based e-liquids delivering the highest mean plasma levels of nicotine (11.2 ng/mL [95% CI, 9.3-13.2 ng/mL] at 5 minutes; 17.2 ng/mL [95% CI, 14.3-20.1 ng/mL] at 35 minutes) irrespective of flavors. Higher positive subjective effect ratings (eg, for liking) were received by salt-based (42.8; 95% CI, 39.4-46.1) vs freebase (32.0; 95% CI, 28.6-35.3) nicotine, 1% (43.4; 95% CI, 40.2-46.6) vs 5% (31.2; 95% CI, 27.7-34.6) nicotine, and menthol-flavored (43.2; 95% CI, 39.7-46.7) vs tobacco-flavored (31.5; 95% CI, 28.4-34.7) e-liquids. Salt-based and 1% but not menthol-flavored nicotine elicited more intense puffing (eg, 25% [95% CI, 12%-40%] more total puffs for nicotine salts vs freebase). All study e-liquids reduced urges and cravings, with 5% vs 1% nicotine being more effective (mean [SE] QSU-Desire score at 35 minutes, 15.4 [0.5] vs 16.7 [0.5]). Conclusions and Relevance In this crossover randomized clinical trial among young adult e-cigarette users, salt-based (vs freebase) nicotine e-liquids increased nicotine intake and yielded more positive subjective effects ratings and intense puffing behaviors, suggesting higher abuse potential. Restricting the level of acidic additives and menthol flavoring may reduce the addictiveness of e-cigarettes. Trial Registration ClinicalTrials.gov Identifier: NCT05458895.
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Affiliation(s)
- Yoo Jin Cho
- Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus
| | - Toral Mehta
- Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus
| | - Alice Hinton
- Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus
| | - Ruth Sloan
- Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus
| | - Jean Nshimiyimana
- Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus
| | - Alayna P. Tackett
- Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus
| | - Megan E. Roberts
- Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus
- Division of Health Behavior & Health Promotion, College of Public Health, The Ohio State University, Columbus
| | - Marielle C. Brinkman
- Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus
- Division of Epidemiology, College of Public Health, The Ohio State University, Columbus
| | - Theodore L. Wagener
- Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus
- Division of Medical Oncology, College of Medicine, The Ohio State University, Columbus
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Erinoso O, Watts T, Koning S, Lu M, Wagner K, Pearson J. Choice of smoking cessation products among people with substance use problems in the US: Findings from the Population Assessment of Tobacco and Health (PATH) study Wave 6. Addict Behav 2024; 158:108104. [PMID: 39042998 DOI: 10.1016/j.addbeh.2024.108104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 07/06/2024] [Accepted: 07/15/2024] [Indexed: 07/25/2024]
Abstract
OBJECTIVE The aim of this study was to compare past 12-month use of cigarette smoking cessation aids (e.g., Food and Drug Administration (FDA)-approved cessation products or e-cigarettes for smoking cessation) among people with substance use problems (PWSUPs) who currently smoke to people without substance use problems (SUPs) who currently smoke cigarettes in a nationally representative US sample. METHODS We used the Population Assessment of Tobacco and Health (PATH) Wave 6 Study [n = 30,516]. Our sample comprised adult (18+) established cigarette smokers (100+ lifetime-sticks with daily/non-daily use) [n = 5,895]. The independent variable was SUP status (no, moderate, and high). The dependent variables were past-year use of: nicotine replacement therapies (NRTs), cessation medications [i.e., varenicline or bupropion], or e-cigarettes [for cigarette cessation and reduction]. Weighted multivariable logistic regression models for each dependent variable examined the associations between SUP status and each cessation aid, adjusting for cigarette dependence, daily cigarette smoking, and demographic factors. RESULTS Among people who smoke, a higher proportion of respondents with high SUP severity used NRTs, cessation medications, and e-cigarettes for cigarette cessation, respectively (12.3%, 8.4%, 15.7%), compared to those with no/low SUP severity (9.8%, 6.0%, 8.9%). In the multivariable models, respondents with high SUPs had 63% (95% CI:1.16-2.29) higher odds of using e-cigarettes for cessation than those without SUPs. No significant differences were seen between high (vs. no/low SUPs) in the past-year use of NRTs and cessation medications. CONCLUSION Our findings indicate that cigarette smokers with high SUPs had higher odds of using e-cigarettes for cessation and reduction compared to smokers without SUPs.
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Affiliation(s)
- Olufemi Erinoso
- Department of Health Behavior, Policy, and Administration Sciences, School of Public Health, University of Nevada, Reno, United States.
| | - Theresa Watts
- Orvis School of Nursing, University of Nevada, Reno, United States
| | - Stephanie Koning
- Department of Health Behavior, Policy, and Administration Sciences, School of Public Health, University of Nevada, Reno, United States
| | - Minggen Lu
- Department of Health Behavior, Policy, and Administration Sciences, School of Public Health, University of Nevada, Reno, United States
| | - Karla Wagner
- Department of Health Behavior, Policy, and Administration Sciences, School of Public Health, University of Nevada, Reno, United States
| | - Jennifer Pearson
- Department of Health Behavior, Policy, and Administration Sciences, School of Public Health, University of Nevada, Reno, United States
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Schiek H, Esch T, Michaelsen MM, Hoetger C. Combining app-based behavioral therapy with electronic cigarettes for smoking cessation: a study protocol for a single-arm mixed-methods pilot trial. Addict Sci Clin Pract 2024; 19:52. [PMID: 38987840 PMCID: PMC11234631 DOI: 10.1186/s13722-024-00483-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 07/01/2024] [Indexed: 07/12/2024] Open
Abstract
BACKGROUND Cigarette smoking remains a leading cause of preventable illness and death, underscoring the need for effective evidence-based smoking cessation interventions. Nuumi, a novel smoking cessation program integrating a digital behavioral therapy and an electronic cigarette, may provide a solution. OBJECTIVE To investigate the initial efficacy, acceptability and psychological outcomes of an evidence-based smoking cessation intervention comprised of a mobile phone app and an electronic cigarette among adults who smoke and who are motivated to quit. METHODS A prospective 6-month single-arm mixed-methods pilot study will be conducted. Seventy adults who smoke and who are motivated to quit will be recruited via web-based advertisements and flyers. Participants receive access to an app and an electronic cigarette with pods containing nicotine for temporary use of at least 3 months. The electronic cigarette is coupled with the app via Bluetooth, allowing for tracking of patterns of use. The behavioral therapy leverages evidence-based content informed by cognitive behavioral therapy and mindfulness-informed principles. Web-based self-report surveys will be conducted at baseline, at 4 weeks, at 8 weeks, at 12 weeks, and at 24 weeks post-baseline. Semi-structured interviews will be conducted at baseline and at 12 weeks post-baseline. Primary outcomes will be self-reported 7-day point prevalence abstinence from smoking at 12 weeks and 24 weeks. Secondary outcomes will include other smoking cessation-related outcomes, psychological outcomes, and acceptability of the nuumi intervention. Descriptive analyses and within-group comparisons will be performed on the quantitative data, and content analyses will be performed on the qualitative data. Recruitment for this study started in October 2023. DISCUSSION As tobacco smoking is a leading cause of preventable morbidity and mortality, this research addresses one of the largest health burdens of our time. The results will provide insights into the initial efficacy, acceptability, and psychological outcomes of a novel mobile health intervention for smoking cessation. If successful, this pilot may generate an effective intervention supporting adults who smoke to quit smoking. The results will inform feasibility of a future randomized controlled trial. Trial Registration German Clinical Trials Register DRKS00032652, registered 09/15/2023, https://drks.de/search/de/trial/DRKS00032652 .
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Affiliation(s)
- Helen Schiek
- Institute for Integrative Health Care and Health Promotion (IGVF), Faculty of Health/School of Medicine, Witten/Herdecke University, Witten, Germany.
| | - Tobias Esch
- Institute for Integrative Health Care and Health Promotion (IGVF), Faculty of Health/School of Medicine, Witten/Herdecke University, Witten, Germany
| | - Maren M Michaelsen
- Institute for Integrative Health Care and Health Promotion (IGVF), Faculty of Health/School of Medicine, Witten/Herdecke University, Witten, Germany
| | - Cosima Hoetger
- Institute for Integrative Health Care and Health Promotion (IGVF), Faculty of Health/School of Medicine, Witten/Herdecke University, Witten, Germany
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Iturralde K, Veldhuizen S, Selby P, Zawertailo L. Concurrent E-cigarette Use While Enrolled in a Smoking Cessation Program: Associations Between Frequency of Use, Motives for Use, and Smoking Cessation. Nicotine Tob Res 2024; 26:888-894. [PMID: 38206633 DOI: 10.1093/ntr/ntae006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/12/2024]
Abstract
INTRODUCTION Trial evidence suggests that e-cigarettes may aid in quitting smoking, while observational studies have found conflicting results. However, many observational studies have not adjusted for important differences between e-cigarette users and non-users. AIMS AND METHODS We aimed to determine the association between e-cigarette use frequency and motivation to use e-cigarettes to quit smoking, and smoking cessation using data from Canada's largest smoking cessation program. Participants who completed a baseline assessment and 6-month follow-up questionnaire were divided post hoc into four groups based on their self-reported e-cigarette use during the 30 days before baseline: (1) non-users; (2) users of e-cigarettes not containing nicotine; (3) occasional users; and (4) frequent users. Occasional and frequent users were further divided into two groups based on whether they reported using e-cigarettes to quit smoking. Abstinence at 6-month follow-up (7-day point prevalence abstinence) was compared among groups. RESULTS Adjusted quit probabilities were significantly higher (both p < .001) for frequent baseline e-cigarette users (31.6%; 95% CI = 29.3%, 33.8%) than for non-users (25.8%; 25.3% and 26.3%) or occasional users (24.2%; 22.5% and 26.0%). Unadjusted proportions favored non-users over occasional users (p < .001), but this was not significant after adjustment (p = .06). People using e-cigarettes to quit smoking were not likelier than other users to be successful, but were likelier to report frequent e-cigarette use during follow-up. CONCLUSIONS Frequent baseline e-cigarette use predicted successful smoking cessation, compared to occasional and non-users. Use of e-cigarettes to quit did not predict smoking cessation but was associated with continued use during follow-up, perhaps due in part to planned transitions to e-cigarettes. IMPLICATIONS Prior observational studies investigating e-cigarette use for smoking cessation have found that occasional users have poorer outcomes than either frequent or non-users. Consistent with these studies, occasional users in our data also had poorer outcomes. However, after adjustment for variables associated with cessation success, we found that cessation probabilities did not differ between occasional and non-users. These findings are consistent with trial data showing the benefit of e-cigarette use among people trying to quit smoking. Results of this study suggest that differences between trials and previous observational studies may be because of unaddressed confounding in the latter.
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Affiliation(s)
- Kameron Iturralde
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Scott Veldhuizen
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
- Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Peter Selby
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
- Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Laurie Zawertailo
- INTREPID Lab, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
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Eissenberg T, Shihadeh A. Understanding the nicotine dose delivered by electronic nicotine delivery systems in a single puff: the importance of nicotine flux and puff duration. Tob Control 2024:tc-2023-058485. [PMID: 38897725 DOI: 10.1136/tc-2023-058485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 05/29/2024] [Indexed: 06/21/2024]
Abstract
Electronic nicotine delivery systems (ENDS) may lead to public health benefit if they help people who smoke quit smoking, and may lead to public health harm if they recruit a new generation of nicotine-dependent people. Regulators intent on maximising ENDS' public health benefit and minimising harm may be interested in regulating the nicotine dose delivered by ENDS in a single puff. The per-puff nicotine dose is the product of ENDS nicotine emission rate (or 'nicotine flux') and the duration of the puff taken by the person using the ENDS (or 'puff duration'). Nicotine flux can be measured or predicted mathematically for any ENDS device/liquid combination. Puff duration can be controlled electronically, as demonstrated by several ENDS marketed today. Combining nicotine flux and puff duration regulation is feasible today and provides authorities the means to limit nicotine dose per puff to a level that may help people who smoke quit smoking while reducing the possibility that nicotine-naive individuals will engage in repeated ENDS use. Tobacco regulatory science and product regulation will both be improved by a rigorous approach to understanding, characterising, and reporting the nicotine dose emitted by ENDS.
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Affiliation(s)
- Thomas Eissenberg
- Department of Psychology, Virginia Commonwealth University, Richmond, VA, USA
- Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, VA, USA
| | - Alan Shihadeh
- Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, VA, USA
- Mechanical Engineering Department, American University of Beirut, Beirut, Lebanon
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Dai HD, Buckley J, Leventhal AM. Correlates of using E-cigarettes with high nicotine concentrations among U.S. adults who exclusively vape E-cigarettes or dual use with cigarettes. Addict Behav 2024; 153:107986. [PMID: 38432013 DOI: 10.1016/j.addbeh.2024.107986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 02/11/2024] [Accepted: 02/12/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Identifying the correlates of using e-cigarettes with high nicotine concentrations in exclusive and dual-using vapers can elucidate which subpopulations might be most impacted by e-cigarette regulatory activities related to nicotine concentration. METHODS Data are drawn from Wave 5 (December 2018-November 2019) of the Population Assessment of Tobacco and Health (PATH) study. Self-reported nicotine concentration was grouped as high (5.0 %+), moderate (1.8-4.9 %), low (0.1-1.7 %), 0 %, and "I don't know." Multivariable logistic regressions estimated associations of sociodemographic factors, tobacco use status, and e-cigarette use patterns of high nicotine concentration vs. other nicotine levels, stratified by current exclusive e-cigarette use and dual use of e-cigarettes and cigarettes. RESULTS In the study samples (exclusive e-cigarette use [n = 1,755], dual-use [n = 1,200]), higher proportions of exclusive e-cigarette users reported using high nicotine concentrations than dual users (18.3 % vs. 8.6 %). Among exclusive e-cigarette users, never vs. former smokers and daily (vs. someday) e-cigarette users were more likely to use high vs. low nicotine. In both exclusive and dual users, younger (vs. older) adults were more likely to report using high nicotine concentration e-cigarettes than most other nicotine levels. Current dual users who did vs. did not report using e-cigarettes to quit smoking had higher odds of using high vs. 0 % nicotine concentrations. CONCLUSIONS High-nicotine e-cigarette use might be elevated in subpopulations that face greater risks for vaping (e.g., never smokers, young adults) than groups who benefit from the potential harm reduction. Regulatory restrictions on high-nicotine products may selectively affect some subgroups adversely impacted by vaping.
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Affiliation(s)
- Hongying Daisy Dai
- College of Public Health, University of Nebraska Medical Center, Omaha, NE, United States.
| | - James Buckley
- College of Public Health, University of Nebraska Medical Center, Omaha, NE, United States
| | - Adam M Leventhal
- Institute for Addiction Science and Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA, United States
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Leavens ELS, Lambart L, Diaz FJ, Wagener TL, Ahluwalia JS, Benowitz N, Nollen NL. Nicotine Delivery and Changes in Withdrawal and Craving During Acute Electronic Cigarette, Heated Tobacco Product, and Cigarette Use Among a Sample of Black and White People Who Smoke. Nicotine Tob Res 2024; 26:780-784. [PMID: 38097340 PMCID: PMC11109490 DOI: 10.1093/ntr/ntad247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/06/2023] [Accepted: 12/10/2023] [Indexed: 01/04/2024]
Abstract
INTRODUCTION E-cigarettes and heated tobacco products (HTPs) may serve as potential options for harm reduction for smokers if they possess reward profiles similar to cigarettes. Little is known about the abuse liability of HTPs and e-cigarettes versus cigarettes in racial/ethnic minority smokers. AIMS AND METHODS Twenty-two nicotine-deprived people who smoke (black [n = 12] and white [n = 10]) completed three visits that included a standardized 10-puff bout followed by a 50-minute ad libitum use assessment with their usual brand cigarette (UBC), an e-cigarette, and HTP. Visits were completed in a randomized crossover design and were separated by a minimum 48-hour washout period. Assessments included plasma nicotine, Cmax, and reductions in craving and withdrawal. RESULTS UBC delivered significantly greater levels of nicotine compared to the e-cigarette (p < .001) and HTP (p < .01) during both the standardized and ad libitum sessions. HTP delivered more nicotine than the e-cigarette during the standardized puffing session (p = .047) but not the ad libitum session. Only craving during the standardized puffing session and not the ad libitum session showed significant differences across products (p < .001) such that UBC resulted in the greatest reduction followed by HTP and e-cigarette. CONCLUSIONS Despite greater nicotine delivery from the UBC compared to e-cigarette and HTP, participants reported reductions in craving and withdrawal across products, particularly following ad libitum use. IMPLICATIONS Use of participant's UBCs (UBC) resulted in greater nicotine delivery compared to both the e-cigarette and HTP. Despite this relative difference in nicotine delivery, participants reported reductions in craving and withdrawal across products, particularly following ad libitum use. These findings suggest that in this sample of black and white people who smoke, HTPs and e-cigarettes provided significant relief from negative symptoms that maintain smoking.
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Affiliation(s)
- Eleanor L S Leavens
- Department of Population Health, University of Kansas School of Medicine, Kansas City, KS, USA
- University of Kansas Comprehensive Cancer Center, Kansas City, KS, USA
| | - Leah Lambart
- Department of Population Health, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Francisco J Diaz
- Department of Biostatistics and Data Science, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Theodore L Wagener
- Center for Tobacco Research, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
- Department of Internal Medicine, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Jasjit S Ahluwalia
- Department of Behavioral and Social Sciences, Brown University, Providence, RI, USA
| | - Neal Benowitz
- Clinical Pharmacology Research Program, Division of Cardiology, Department of Medicine, University of California, San Francisco, CA, USA
| | - Nicole L Nollen
- Department of Population Health, University of Kansas School of Medicine, Kansas City, KS, USA
- University of Kansas Comprehensive Cancer Center, Kansas City, KS, USA
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He Y, Yang Q, Alish Y, Ma S, Qiu Z, Chen J, Wagener T, Shang C. Relationship Between Product Features and the Prices of e-Cigarette Devices Sold in Web-Based Vape Shops: Comparison Study Using a Linear Regression Model. JMIR Form Res 2024; 8:e49276. [PMID: 38723251 PMCID: PMC11117130 DOI: 10.2196/49276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 02/07/2024] [Accepted: 03/01/2024] [Indexed: 05/26/2024] Open
Abstract
BACKGROUND Open-system electronic cigarette (EC) product features, such as battery capacity, maximum output wattage, and so forth, are major components that drive product costs and may influence use patterns. Moreover, continued innovation and monitoring of product features and prices will provide critical information for designing appropriate taxation policies and product regulations. OBJECTIVE This study will examine how product features are associated with the prices of devices sold in web-based vape shops. METHODS We draw samples from 5 popular, US-based, web-based vape shops from April to August 2022 to examine starter kits, device-only products, and e-liquid container-only products. We implemented a linear regression model with a store-fixed effect to examine the association between device attributes and prices. RESULTS EC starter kits or devices vary significantly by type, with mod prices being much higher than pod and vape pen prices. The prices of mod starter kits were even lower than those of mod devices, suggesting that mod starter kits are discounted in web-based vape shops. The price of mod kits, mod device-only products, and pod kits increased as the battery capacity and output wattage increased. For vape pens, the price was positively associated with the volume size of the e-liquid container. On the other hand, the price of pod kits was positively associated with the number of containers. CONCLUSIONS A unit-based specific tax, therefore, will impose a higher tax burden on lower-priced devices such as vape pens or pod systems and a lower tax burden on mod devices. A volume- or capacity-based specific tax on devices will impose a higher tax burden on vape pens with a larger container size. Meanwhile, ad valorem taxes pegged to wholesale or retail prices would apply evenly across device types, meaning those with advanced features such as higher battery capacities and output wattage would face higher rates. Therefore, policy makers could manipulate tax rates by device type to discourage the use of certain device products.
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Affiliation(s)
- Yanyun He
- Center for Tobacco Research, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Qian Yang
- Center for Tobacco Research, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Yousef Alish
- Center for Biostatistics, Department of Biomedical Informatics, The Ohio State University, Columbus, OH, United States
| | - Shaoying Ma
- Center for Tobacco Research, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Zefeng Qiu
- Department of Computer Science and Engineering, The Ohio State University, Columbus, OH, United States
| | - Jian Chen
- Department of Computer Science and Engineering, The Ohio State University, Columbus, OH, United States
| | - Theodore Wagener
- Center for Tobacco Research, The Ohio State University Wexner Medical Center, Columbus, OH, United States
- Medical Oncology Division, Department of Internal Medicine, The Ohio State University, Columbus, OH, United States
| | - Ce Shang
- Center for Tobacco Research, The Ohio State University Wexner Medical Center, Columbus, OH, United States
- Medical Oncology Division, Department of Internal Medicine, The Ohio State University, Columbus, OH, United States
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Soule EK, Mayne S, Snipes W, Guy MC, Breland A, Fagan P. Reactions to a Hypothetical Ban of Open-System Electronic Cigarettes Among People Who Currently Use Electronic Cigarettes. Nicotine Tob Res 2024:ntae020. [PMID: 38408200 DOI: 10.1093/ntr/ntae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/13/2023] [Accepted: 01/19/2024] [Indexed: 02/28/2024]
Abstract
INTRODUCTION Policies limiting electronic cigarette (ECIG) device and liquid characteristics have been considered to prevent dependence potential and youth product appeal. "Open-system" ECIGs allow people to adjust device and liquid characteristics, which may undermine these policies. This study examined anticipated reactions to a policy prohibiting the sale of open-system ECIG devices in the United States using concept mapping. METHODS In 2020, adults who reported ECIG use in the past 30 days (n = 70; 45.1% women; mean age = 33.0, SD = 10.6) recruited from a research registry of individuals from across the United States provided statements into a shared list that completed a prompt: "If open-system vaping devices were no longer sold in the US and only closed-system vaping devices were available, what is a specific reaction or response you would have?" at a study website. Participants rated statements (1-7) on how true the statements were for them. Multidimensional scaling and hierarchical cluster analyses were used to identify thematic clusters. Mean ratings of statements were calculated and compared based on the type of ECIG used and current cigarette smoking status. RESULTS Participants generated 85 unique statements. The analysis identified eight themes that were organized into two broad groups. The first group of five clusters described behavioral responses to the hypothetical policy (Loopholes, Switch to Closed-System ECIGs, Legal Approaches to Use Open-System ECIGs, ECIG Use Cessation, Switch to non-ECIG Products). The second group of three clusters described psychological responses to the hypothetical policy (Closed-System ECIG Cons, Psychological Responses, Policy Outcome Concerns). CONCLUSIONS While a ban on open-system ECIG devices may have positive impacts on public health, policy loopholes, and consumer behaviors may undermine the policy. Efforts to support policy enforcement could increase policy effectiveness. IMPLICATIONS Open-system electronic cigarettes (ECIGs) that allow people who use ECIGs to modify ECIG device and liquid characteristics may limit the effectiveness of policies that establish product standards which attempt to limit nicotine delivery and flavor content in ECIG liquids. This study identified predicted reactions to a hypothetical policy prohibiting the sale of open-system ECIGs in the United States. Results suggest that people who use ECIGs may view a policy prohibiting open-system ECIGs unfavorably, but would be willing to use closed-system ECIGs. However, many ECIG users may attempt to find loopholes in the policy or alternative sources to purchase open-system ECIGs if open-systems were banned. Future research should identify strategies for tobacco regulatory policy enforcement to increase effectiveness.
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Affiliation(s)
- Eric K Soule
- Department of Health Education and Promotion, East Carolina University, Greenville, NC, USA
- Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, VA, USA
| | - Shannon Mayne
- Department of Health Education and Promotion, East Carolina University, Greenville, NC, USA
- Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, VA, USA
| | - William Snipes
- Department of Health Education and Promotion, East Carolina University, Greenville, NC, USA
- Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, VA, USA
| | - Mignonne C Guy
- Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, VA, USA
- Department of African American Studies, College of Humanities and Sciences, Virginia Commonwealth University, Richmond, VA, USA
| | - Alison Breland
- Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, VA, USA
- Department of Psychology, College of Humanities and Sciences, Virginia Commonwealth University, Richmond, VA, USA
| | - Pebbles Fagan
- Center for the Study of Tobacco Products, Virginia Commonwealth University, Richmond, VA, USA
- Department of Health Behavior and Health Education, Fay W. Boozman College of Public Health, Center for the Study of Tobacco, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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11
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Carpenter MJ, Cummings KM, Smith TT. Response to: Clinical trial shows that giving smokers free e-cigarettes creates more dual users than switchers or quitters. EClinicalMedicine 2024; 68:102451. [PMID: 38328753 PMCID: PMC10847052 DOI: 10.1016/j.eclinm.2024.102451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 02/09/2024] Open
Affiliation(s)
| | | | - Tracy T. Smith
- Hollings Cancer Center, Medical University of South Carolina, SC, USA
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12
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Leavens ELS, Wagener TL. E-Cigarettes and FDA Nicotine Cap. JAMA 2024; 331:358-359. [PMID: 38261053 PMCID: PMC11201304 DOI: 10.1001/jama.2023.24521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Affiliation(s)
- Eleanor L S Leavens
- Department of Population Health, University of Kansas School of Medicine, Kansas City
| | - Theodore L Wagener
- Center for Tobacco Research, Ohio State University Comprehensive Cancer Center, Columbus
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13
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Pinkston R, Penn AL, Noël A. Increased oxidative stress responses in murine macrophages exposed at the air-liquid interface to third- and fourth-generation electronic nicotine delivery system (ENDS) aerosols. Toxicol Rep 2023; 11:40-57. [PMID: 37405056 PMCID: PMC10315815 DOI: 10.1016/j.toxrep.2023.06.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 06/06/2023] [Accepted: 06/14/2023] [Indexed: 07/06/2023] Open
Abstract
Background New fourth generation electronic nicotine delivery system (ENDS) devices contain high levels of nicotine salt (up to 60 mg/mL), whose cellular and molecular effects on immune cells are currently unknown. Here, we used a physiologically-relevant in vitro air-liquid interface (ALI) exposure model to assess the toxicity of distinct ENDS, a 3rd-generation electronic-cigarette (e-cig) and two 4th-generation ENDS devices (JUUL and Posh Plus). Methods Murine macrophages (RAW 264.7) were exposed at the ALI to either air, Menthol or Crème Brûlée-flavored ENDS aerosols generated from those devices for 1-hour per day for 1 or 3 consecutive days. Cellular and molecular toxicity was evaluated 24 h post-exposure. Results 1-day of Menthol-flavored JUUL aerosol exposure significantly decreased cell viability and significantly increased lactate dehydrogenase (LDH) levels compared to air controls. Further, JUUL Menthol elicited significantly increased reactive oxygen species (ROS) and nitric oxide (NO) production compared to air controls. Posh Crème Brûlée-flavored aerosols displayed significant cytotoxicity - decreased cell viability and increased LDH levels -after 1- and 3-day exposures, while the Crème Brûlée-flavored aerosol produced by the 3rd-generation e-cig device only displayed significant cytotoxicity after 3 days compared to air controls. Further, both Posh and third-generation e-cig Crème Brûlée flavored-aerosols elicited significantly increased ROS plus high levels of 8-isoprostane after 1 and 3 days compared to air controls, indicating increased oxidative stress. Posh and third-generation e-cig Crème Brûlée flavored-aerosols elicited reduction in NO levels after one day, but elicited increase in NO after 3 days. Genes in common dysregulated by both devices after 1 day included α7nAChR, Cyp1a1, Ahr, Mmp12, and iNos. Conclusion Our results suggest that ENDS Menthol and Crème Brûlée-flavored aerosol exposures from both 3rd- and 4th-generation ENDS devices are cytotoxic to macrophages and cause oxidative stress. This can translate into macrophage dysfunction. Although 4th-generation disposable ENDS devices have no adjustable operational settings and are considered low-powered ENDS devices, their aerosols can induce cellular toxicity compared to air-exposed control cells. This study provides scientific evidence for regulation of nicotine salt-based disposable ENDS products.
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Affiliation(s)
- Rakeysha Pinkston
- Department of Environmental Toxicology, Southern University and A & M College, Baton Rouge, LA 70813, USA
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, 1909 Skip Bertman Drive, Baton Rouge, LA 70803, USA
| | - Arthur L Penn
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, 1909 Skip Bertman Drive, Baton Rouge, LA 70803, USA
| | - Alexandra Noël
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, 1909 Skip Bertman Drive, Baton Rouge, LA 70803, USA
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14
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Sánchez-Romero LM, Liber AC, Li Y, Yuan Z, Tam J, Travis N, Jeon J, Issabakhsh M, Meza R, Levy DT. The smoking and vaping model, A user-friendly model for examining the country-specific impact of nicotine VAPING product use: application to Germany. BMC Public Health 2023; 23:2299. [PMID: 37990171 PMCID: PMC10662637 DOI: 10.1186/s12889-023-17152-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 11/04/2023] [Indexed: 11/23/2023] Open
Abstract
BACKGROUND Simulation models play an increasingly important role in tobacco control. Models examining the impact of nicotine vaping products (NVPs) and smoking tend to be highly specialized and inaccessible. We present the Smoking and Vaping Model (SAVM),a user-friendly cohort-based simulation model, adaptable to any country, that projects the public health impact of smokers switching to NVPs. METHODS SAVM compares two scenarios. The No-NVP scenario projects smoking rates in the absence of NVPs using population projections, deaths rates, life expectancy, and smoking prevalence. The NVP scenario models vaping prevalence and its impact on smoking once NVPs became popular. NVP use impact is estimated as the difference in smoking- and vaping-attributable deaths (SVADs) and life-years lost (LYLs) between the No-NVP and NVP scenarios. We illustrate SAVM's adaptation to the German adult ages 18+ population, the Germany-SAVM by adjusting the model using population, mortality, smoking and NVP use data. RESULTS Assuming that the excess NVP mortality risk is 5% that of smoking, Germany-SAVM projected 4.7 million LYLs and almost 300,000 SVADs averted associated with NVP use from 2012 to 2060. Increasing the excess NVP mortality risk to 40% with other rates constant resulted in averted 2.8 million LYLs and 200,000 SVADs during the same period. CONCLUSIONS SAVM enables non-modelers, policymakers, and other stakeholders to analyze the potential population health effects of NVP use and public health interventions.
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Affiliation(s)
- Luz María Sánchez-Romero
- Lombardi Comprehensive Cancer Center, Georgetown University, 2115 Wisconsin Ave, suite 300, Washington, DC, 20007, USA.
| | - Alex C Liber
- Lombardi Comprehensive Cancer Center, Georgetown University, 2115 Wisconsin Ave, suite 300, Washington, DC, 20007, USA
| | - Yameng Li
- Lombardi Comprehensive Cancer Center, Georgetown University, 2115 Wisconsin Ave, suite 300, Washington, DC, 20007, USA
| | - Zhe Yuan
- Lombardi Comprehensive Cancer Center, Georgetown University, 2115 Wisconsin Ave, suite 300, Washington, DC, 20007, USA
| | - Jamie Tam
- School of Public Health, Yale University, New Haven, CT, USA
| | - Nargiz Travis
- Lombardi Comprehensive Cancer Center, Georgetown University, 2115 Wisconsin Ave, suite 300, Washington, DC, 20007, USA
| | - Jihyoun Jeon
- Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA
| | - Mona Issabakhsh
- Lombardi Comprehensive Cancer Center, Georgetown University, 2115 Wisconsin Ave, suite 300, Washington, DC, 20007, USA
| | - Rafael Meza
- Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA
- Integrative Oncology, BC Cancer Research Institute, British Columbia, Canada
- School of Population and Public Health, University of British Columbia, Columbia, Canada
| | - David T Levy
- Lombardi Comprehensive Cancer Center, Georgetown University, 2115 Wisconsin Ave, suite 300, Washington, DC, 20007, USA
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15
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Sahu R, Shah K, Malviya R, Paliwal D, Sagar S, Singh S, Prajapati BG, Bhattacharya S. E-Cigarettes and Associated Health Risks: An Update on Cancer Potential. Adv Respir Med 2023; 91:516-531. [PMID: 37987300 PMCID: PMC10660480 DOI: 10.3390/arm91060038] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/03/2023] [Accepted: 11/08/2023] [Indexed: 11/22/2023]
Abstract
The potential cancer risk associated with electronic-cigarette (e-cigarette) use is ongoing and remains a subject of debate. E-Cigarettes work by heating a liquid that usually contains nicotine, flavorings, and other chemicals. When the liquid is heated, users inhale an aerosol into their lungs. While e-cigarettes are generally considered less harmful than traditional tobacco products, they still contain potentially harmful chemicals, which can damage DNA and lead to cancer. Several studies have investigated the potential cancer risk associated with e-cigarette use, while other studies have suggested that e-cigarette aerosol may contain carcinogenic chemicals that could increase the risk of lung and bladder cancer in humans. However, these studies are limited in their scope and do not provide conclusive evidence. Overall, the long-term cancer risk associated with e-cigarette use remains uncertain, more research is needed to fully understand the potential risks and benefits of e-cigarettes. However, this review will allow the investigator to get more recent updates about e-cigarettes.
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Affiliation(s)
- Rakesh Sahu
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida 201310, India; (R.M.); (D.P.); (S.S.)
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Research, GLA University, Mathura 281406, India;
| | - Kamal Shah
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Research, GLA University, Mathura 281406, India;
| | - Rishabha Malviya
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida 201310, India; (R.M.); (D.P.); (S.S.)
| | - Deepika Paliwal
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida 201310, India; (R.M.); (D.P.); (S.S.)
| | - Sakshi Sagar
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotias University, Greater Noida 201310, India; (R.M.); (D.P.); (S.S.)
| | - Sudarshan Singh
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Bhupendra G. Prajapati
- Shree S. K. Patel College of Pharmaceutical Education and Research, Ganpat University, Kherva 384012, India
| | - Sankha Bhattacharya
- Department of Pharmaceutics, School of Pharmacy & Technology Management, SVKM’S NMIMS Deemed-to-Be University, Shirpur 425405, India;
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16
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Campbell C, Jin T, Round EK, Nelson PR, Baxter S. Abuse liability of two electronic nicotine delivery systems compared with combustible cigarettes and nicotine gum from an open-label randomized crossover study. Sci Rep 2023; 13:18951. [PMID: 37919490 PMCID: PMC10622442 DOI: 10.1038/s41598-023-45894-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 10/25/2023] [Indexed: 11/04/2023] Open
Abstract
An assessment of the likelihood of use and abuse potential for new tobacco products is an important part of tobacco product regulation in the United States and abroad. This paper reports the results of a randomized, open-label, crossover clinical study that assessed factors related to product adoption and abuse liability (AL), comparing two closed electronic nicotine delivery system (ENDS) products to combustible cigarettes and nicotine gum, high- and low-AL comparator products, respectively. During an 11-day confinement period that included multiple product familiarization sessions, healthy adult smokers participated in AL test sessions to evaluate the abuse liability of each product. During these test sessions, changes in subjective measures; speed and amount of nicotine uptake; and maximum changes in physiological effects before, during, and after use of each assigned product were assessed over 4 h. Positive subjective effects measures scores such as product-liking and overall intent to use again were highest for cigarettes, followed by the Vuse ENDS, with nicotine gum consistently having the lowest scores. The PK results (Cmax and Tmax) of the Vuse ENDS products are between UB cigarettes and nicotine gum, which correlates with the subjective effects. All nicotine uptake measures for the Vuse ENDS products were lower than that of usual brand (UB) cigarettes, including peak nicotine uptake and overall nicotine uptake, and were either similar to or lower than nicotine gum. The time course of nicotine uptake after use of the ENDS was more similar to that of combustible cigarettes than nicotine gum. The results indicate that the AL of each ENDS product is lower than that of UB cigarettes and similar to that of nicotine gum.
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Affiliation(s)
| | - Tao Jin
- RAI Services Company, 401 N. Main Street, Winston‑Salem, NC, 27101, USA.
| | - Elaine K Round
- British American Tobacco (Investments) Limited, Research and Development, Regents Park Road, Southampton, SO15 8TL, UK
| | | | - Sarah Baxter
- British American Tobacco (Investments) Limited, Research and Development, Regents Park Road, Southampton, SO15 8TL, UK
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17
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Bandara NA, Zhou XR, Alhamam A, Black PC, St-Laurent MP. The genitourinary impacts of electronic cigarette use: a systematic review of the literature. World J Urol 2023; 41:2637-2646. [PMID: 37524850 DOI: 10.1007/s00345-023-04546-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 07/19/2023] [Indexed: 08/02/2023] Open
Abstract
PURPOSE Electronic cigarette (e-cig) use is prevalent. The health implications of e-cig use on the genitourinary (GU) system are uncertain. This systematic review aims to evaluate how e-cig use impacts the GU system. METHODS A systematic search was conducted in PubMed, Embase and Ovid alongside citation searching. Review articles, non-English papers, animal model/cell line studies or articles only on combustible cigarettes were excluded. Quality assessment was undertaken using the Joanna Briggs Institute checklists. The primary endpoint was the impact of e-cig use on bladder cancer incidence. Secondary outcomes included urinary carcinogens, chronic kidney disease (CKD), reproductive disorders, and other GU diseases. RESULTS The search yielded 244 articles, 28 were ultimately included. One study assessed risk of bladder cancer and found the use of e-cig was associated with an increased odds ratio of 1.577 for its diagnosis. Twenty-one articles measured potential urinary carcinogens-including crotonaldehyde and benzene-associated with bladder cancer. Two articles evaluated the association of e-cig use with CKD and reported mixed outcomes. Three articles reported on reproductive disorders, specifically, stuttering priapism and changes to sperm quantity and quality. One study reported on other GU diseases, specifically burns to the GU system. After quality assessment, all articles were deemed to be of acceptable quality for inclusion. CONCLUSIONS E-cig use was associated with an increased risk of bladder cancer, increased exposure to carcinogenic compounds, mixed evidence on CKD, increased risk of reproductive disorders and burns to the GU system. Further studies are needed to understand long-term GU effects.
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Affiliation(s)
- Nilanga Aki Bandara
- Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Xuan Randy Zhou
- Vagelos College of Physicians and Surgeons, Columbia University, New York, USA
| | - Abdullah Alhamam
- Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Level 6, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada
- Department of Urology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Peter C Black
- Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Level 6, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada
- Vancouver Prostate Centre, Vancouver, Canada
| | - Marie-Pier St-Laurent
- Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Level 6, 2775 Laurel Street, Vancouver, BC, V5Z 1M9, Canada.
- Vancouver Prostate Centre, Vancouver, Canada.
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18
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Tran LN, Chiu EY, Hunsaker HC, Wu KC, Poulin BA, Madl AK, Pinkerton KE, Nguyen TB. Carbonyls and Aerosol Mass Generation from Vaping Nicotine Salt Solutions Using Fourth- and Third-Generation E-Cigarette Devices: Effects of Coil Resistance, Coil Age, and Coil Metal Material. Chem Res Toxicol 2023. [PMID: 37698991 PMCID: PMC10583227 DOI: 10.1021/acs.chemrestox.3c00172] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Indexed: 09/14/2023]
Abstract
Aerosol formation and production yields from 11 carbonyls (carbonyl concentration per aerosol mass unit) were investigated (1) from a fourth-generation (4th gen) e-cigarette device at different coil resistances and coil age (0-5000 puffs) using unflavored e-liquid with 2% benzoic acid nicotine salt, (2) between a sub-ohm third-generation (3rd gen) tank mod at 0.12 Ω and a 4th gen pod at 1.2 Ω using e-liquid with nicotine salt, together with nicotine yield, and (3) from 3rd gen coils of different metals (stainless steel, kanthal, nichrome) using e-liquid with freebase nicotine. Coil resistance had an inverse relationship with coil temperature, and coil temperature was directly proportional to aerosol mass formation. Trends in carbonyl yields depended on carbonyl formation mechanisms. Carbonyls produced primarily from thermal degradation chemistry (e.g., formaldehyde, acetaldehyde, acrolein, propionaldehyde) increased per aerosol mass with higher coil resistances, despite lower coil temperature. Carbonyls produced primarily from chemistry initiated by reactive oxygen species (ROS) (e.g., hydroxyacetone, dihydroxyacetone, methylglyoxal, glycolaldehyde, lactaldehyde) showed the opposite trend. Coil age did not alter coil temperature nor aerosol mass formation but had a significant effect on carbonyl formation. Thermal carbonyls were formed optimally at 500 puffs in our study and then declined to a baseline, whereas ROS-derived carbonyls showed a slow rise to a maximum trend with coil aging. The 3rd gen versus 4th gen device comparison mirrored the trends in coil resistance. Nicotine yields per aerosol mass were consistent between 3rd and 4th gen devices. Coil material did not significantly alter aerosol formation nor carbonyl yield when adjusted for wattage. This work shows that sub-ohm coils may not necessarily produce higher carbonyl yields even when they produce more aerosol mass. Furthermore, carbonyl formation is dynamic and not generalizable during the coil's lifetime. Finally, studies that compare data across different e-cigarette devices, coil age, and coil anatomy should account for the aerosol chemistry trends that depend on these parameters.
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Affiliation(s)
- Lillian N Tran
- Department of Environmental Toxicology, University of California, Davis, Davis, California 95616, United States
| | - Elizabeth Y Chiu
- Department of Environmental Toxicology, University of California, Davis, Davis, California 95616, United States
| | - Haylee C Hunsaker
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States
| | - Kuan-Chen Wu
- Department of Chemistry, University of California, Davis, Davis, California 95616, United States
| | - Brett A Poulin
- Department of Environmental Toxicology, University of California, Davis, Davis, California 95616, United States
| | - Amy K Madl
- Center for Health and the Environment, University of California, Davis, Davis, California 95616, United States
| | - Kent E Pinkerton
- Center for Health and the Environment, University of California, Davis, Davis, California 95616, United States
| | - Tran B Nguyen
- Department of Environmental Toxicology, University of California, Davis, Davis, California 95616, United States
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Sreeramareddy CT, Shroff SM, Gunjal S. Nicotine dependence and associated factors among persons who use electronic e-cigarettes in Malaysia - an online survey. Subst Abuse Treat Prev Policy 2023; 18:51. [PMID: 37644524 PMCID: PMC10466701 DOI: 10.1186/s13011-023-00558-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 08/05/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND Nicotine dependence, factors associated with dependence, and self-reported side effects among people who use e-cigarettes are scarce in developing countries. METHODS A sample of 302 persons who currently use e-cigarettes was recruited from discussion forums on Reddit, Facebook, and the forum 'lowyat'. The online Google form survey collected data on demographics, e-cigarette use, and the reasons, for cigarette smoking, Fagerstorm Test for Nicotine Dependence adapted for e-cigarettes (eFTND), and side effects experienced. RESULTS The mean age was 25.5 years (6.5), 60.6% were males and 86% had higher education. About 47% were using e-cigarettes only, 27.8% were currently using dual products (both electronic and conventional cigarettes), and 25.2% had also smoked cigarettes in the past. 'Less harmful than cigarettes' (56.3%), 'because I enjoy it' (46.7%), and 'it has a variety of flavors (40.4%) were the common reasons for e-cigarette use. The mean eFTND score was 3.9 (SD = 2.2), with a median of four side effects (IQR 3-6), sore or dry mouth/throat (41.4%), cough 33.4%, headache (20.5%), dizziness (16.2%) were commonly reported side effects. eFTND score and side effects were higher among persons using dual products. By multiple linear regression analysis, males (β = 0.56 95% CI 0.45, 1.05, p = 0.033), dual-use (β = 0.95 95% CI 0.34, 1.56, p < 0.003), and use of nicotine-containing e-cigarettes (β = 0.66 95% CI 0.07, 1.25 p = 0.024) had higher eFTND score. CONCLUSION Our findings of the study call for the placement of disclaimers about possible nicotine addiction and side effects of e-cigarette products.
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Affiliation(s)
| | - Sameeha Misriya Shroff
- School of Postgraduate Studies, International Medical University, Kuala Lumpur, Malaysia
| | - Shilpa Gunjal
- Clinical Oral Health Sciences, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia
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20
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Diaz MC, Silver NA, Bertrand A, Schillo BA. Bigger, stronger and cheaper: growth in e-cigarette market driven by disposable devices with more e-liquid, higher nicotine concentration and declining prices. Tob Control 2023:tc-2023-058033. [PMID: 37536928 DOI: 10.1136/tc-2023-058033] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 07/20/2023] [Indexed: 08/05/2023]
Abstract
OBJECTIVE Given the evolving changes in the disposable e-cigarette market, we explore patterns of sales in the USA by e-liquid volume capacity, nicotine strength and real sales-weighted average prices by both e-cigarette unit and volume of e-liquid. METHODOLOGY We used NielsenIQ retail scanner data from January 2017 to September 2022 to examine changes over time for average product volume capacity in millilitres, nicotine strength (%) and both sales-weighted average price per disposable unit and per millilitre of e-liquid for each 4-week period. RESULTS Among disposable e-cigarettes sold between January 2017 and September 2022, average volume capacity increased 518% from 1.1 mL to 5.7 mL and average nicotine strength increased 294% from 1.7% to 5%. Sales-weighted average price per disposable unit and millilitres of e-liquid both remained relatively constant until January 2020. From January 2020 through September 2022, average unit prices increased 165.7% from US$8.49 to US$14.07, while the average price of 1 mL of e-liquid decreased 69.2% from US$7.96 to US$2.45. CONCLUSIONS The current regulatory regime around e-cigarettes has resulted in disposable e-cigarette manufacturers providing consumers with bigger, cheaper disposable e-cigarettes that come in increasingly higher nicotine strengths. Tobacco policy recommendations such as restricting e-liquid capacity and minimum price laws as well as regulations on product characteristics that affect nicotine emissions and delivery such as nicotine strength, nicotine output, device power, and puff duration should be considered in regulating the e-cigarette market.
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Affiliation(s)
- Megan C Diaz
- Schroeder Institute, Truth Initiative, Washington, DC, USA
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Lyytinen G, Brynedal A, Anesäter E, Antoniewicz L, Blomberg A, Wallén H, Bosson JA, Hedman L, Mobarrez F, Tehrani S, Lundbäck M. Electronic Cigarette Vaping with Nicotine Causes Increased Thrombogenicity and Impaired Microvascular Function in Healthy Volunteers: A Randomised Clinical Trial. Cardiovasc Toxicol 2023; 23:255-264. [PMID: 37548804 PMCID: PMC10435650 DOI: 10.1007/s12012-023-09802-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 07/15/2023] [Indexed: 08/08/2023]
Abstract
Electronic cigarette (EC) vaping is increasingly popular, despite growing evidence of adverse health effects. To further evaluate the impact of EC use on vascular health, we investigated the effects of brief EC inhalation on flow-dependent thrombus formation and microcirculation in healthy volunteers. The study was performed with a randomised double-blind crossover design. Twenty-two healthy subjects aged between 18 and 45 years with occasional tobacco use were recruited. Subjects inhaled 30 puffs of EC aerosol with and without nicotine on two occasions separated by a wash-out period of at least 1 week. Blood samples were collected at baseline and at 15 and 60 min following exposure and analysed with the Total-Thrombus-formation analysis system evaluating fibrin-rich thrombus formation and platelet thrombus formation in whole blood under flow. Microvascular function was assessed at baseline and 30 min after exposure by laser speckle contrast imaging and iontophoresis of acetylcholine and sodium nitroprusside (SNP) to evaluate the endothelium-dependent and independent pathways of vasodilation. Compared with nicotine free EC aerosol, exposure to EC aerosol with nicotine significantly increased platelet thrombus formation and fibrin-rich thrombus formation at 15 min (p = 0.017 and p = 0.037, respectively) with normalisation after 60 min. Peak SNP-mediated microvascular perfusion, i.e. endothelium-independent vasodilation, was reduced following EC vaping with nicotine compared with baseline (p = 0.006). Thirty puffs of EC aerosol with nicotine increased platelet and fibrin-dependent thrombus formation and reduced microvascular dilatation capacity. No compelling effects of EC vaping without nicotine were observed, indicating nicotine as the main effector. Trial registration: ClinicalTrials.gov Identifier: NCT04175457 URL: https://clinicaltrials.gov/ct2/show/NCT04175457.
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Affiliation(s)
- Gustaf Lyytinen
- Department of Clinical Sciences, Division of Cardiovascular Medicine, Karolinska Institutet, Danderyd University Hospital, Stockholm, Sweden.
| | - Amelie Brynedal
- Section of Medicine, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Erik Anesäter
- Department of Clinical Sciences, Division of Cardiovascular Medicine, Karolinska Institutet, Danderyd University Hospital, Stockholm, Sweden
| | - Lukasz Antoniewicz
- Department of Medicine II, Division of Pulmonology, Medical University of Vienna, Vienna, Austria
| | - Anders Blomberg
- Section of Medicine, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Håkan Wallén
- Department of Clinical Sciences, Division of Cardiovascular Medicine, Karolinska Institutet, Danderyd University Hospital, Stockholm, Sweden
| | - Jenny A Bosson
- Section of Medicine, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Linnea Hedman
- Section of Sustainable Health, Department of Public Health and Clinical Medicine, The OLIN Unit, Umeå University, Umeå, Sweden
| | | | - Sara Tehrani
- Department of Clinical Sciences, Division of Internal Medicine, Danderyd University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Magnus Lundbäck
- Department of Clinical Sciences, Division of Cardiovascular Medicine, Karolinska Institutet, Danderyd University Hospital, Stockholm, Sweden
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Lee J, Orzabal MR, Naik VD, Ramadoss J. Impact of e-cigarette vaping aerosol exposure in pregnancy on mTOR signaling in rat fetal hippocampus. Front Neurosci 2023; 17:1217127. [PMID: 37449268 PMCID: PMC10337480 DOI: 10.3389/fnins.2023.1217127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/15/2023] [Indexed: 07/18/2023] Open
Abstract
Electronic cigarette (e-cig) use during pregnancy has become a major health concern in recent years and many view them as less harmful and may help quit or reduce combustible cigarettes. Implementing a state-of-the-art engineered vaping system, comprising an atomizer similar to those sold in vape shops, we aimed to utilize a translational e-cig inhalation delivery method to provide crucial information on the impact of prenatal e-cig aerosols on the developing brain hippocampal mTOR system in a rat model system. Gestational e-cig vaping significantly increased P-mTOR levels (p < 0.05) in the rat fetal hippocampi in the nicotine group (comprising of VG/PG + nicotine) compared to the control and the juice (comprising of VG/PG) groups. Total mTOR expression was not different among groups. Immunofluorescence imaging demonstrated P-mTOR was detected exclusively in the granule cells of the dentate gyrus of the fetal hippocampus. E-cig did not alter DEPTOR, but RAPTOR and RICTOR were higher (p < 0.05) in the Nicotine group. Gestational e-cig vaping with nicotine increased (p < 0.05) the activity and expression of 4EBP1, p70S6K, but decreased (p < 0.05) P-PKCα in the fetal hippocampi. In summary, dysregulation of mTORC1 and the related mTORC2, their activity, and downstream proteins together may play a critical role in e-cig-vaping-induced neurobiological phenotypes during development.
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Affiliation(s)
- Jehoon Lee
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, United States
| | - Marcus R. Orzabal
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX, United States
| | - Vishal D. Naik
- Department of Obstetrics and Gynecology, C.S. Mott Center for Human Growth and Development, School of Medicine, Wayne State University, Detroit, MI, United States
| | - Jayanth Ramadoss
- Department of Obstetrics and Gynecology, C.S. Mott Center for Human Growth and Development, School of Medicine, Wayne State University, Detroit, MI, United States
- Department of Physiology, School of Medicine, Wayne State University, Detroit, MI, United States
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23
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Soule EK, Mayne S, Snipes W, Heym M, Coffey A, Guy M, Breland A, Fagan P. Electronic Cigarette Users' Reactions and Responses to a Hypothetical Nicotine Concentration Reduction in Electronic Cigarette Liquids. Subst Use Misuse 2023; 58:1202-1211. [PMID: 37222484 PMCID: PMC10339361 DOI: 10.1080/10826084.2023.2212280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Background: Regulations limiting nicotine in electronic cigarettes (e-cigarettes) have been proposed or implemented. Little is known about e-cigarette users' reactions to reducing e-cigarette liquid nicotine concentration. Methods: We used concept mapping to describe e-cigarette users' reactions to a 50% reduction in the nicotine concentration of their e-cigarette liquids. In 2019, current e-cigarette users who used e-cigarette liquid with greater than 0 mg/ml nicotine concentration completed an online study. Participants (n = 71, mean age = 34.9 (SD = 11.0), 50.7% women), brainstormed statements completing a prompt: "If the e-liquid that I use now in my e-cigarette/vaping device was only available in half the nicotine concentration or amount that I use now, a specific action I would take or a specific reaction I would have is…", Participants then sorted a final list of 67 statements into piles of similar content and rated statements on how true the statements would be for them. Multidimensional scaling and hierarchical cluster analyses identified thematic clusters. Results: Eight clusters were identified: (1) Replacement Product Seeking, (2) Mental Preparations and Expectations, (3) Use the New Liquid, (4) Information Seeking, (5) Compensation Behaviors, (6) Opportunity for E-Cigarette Reduction, (7) Physical and Psychological Effects, and (8) Replacement with non-E-Cigarette Products and Behaviors. Cluster ratings suggested many participants would search for other e-cigarette products/liquids to replace their current liquids, but using other tobacco products (e.g., cigarettes) may be less likely. Conclusions: If nicotine concentrations were decreased in e-cigarette liquids, e-cigarette users may attempt to purchase different e-cigarette products or modify their products to achieve desired effects.
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Affiliation(s)
- Eric K. Soule
- Department of Health Education and Promotion, Mail Stop 529, East Carolina University, 1000 East 5 Street, Greenville, NC 27858 USA
- Center for the Study of Tobacco Products, Virginia Commonwealth University, 100 W Franklin St., Suite 200, Richmond, VA 23220 USA
| | - Shannon Mayne
- Department of Health Education and Promotion, Mail Stop 529, East Carolina University, 1000 East 5 Street, Greenville, NC 27858 USA
- Center for the Study of Tobacco Products, Virginia Commonwealth University, 100 W Franklin St., Suite 200, Richmond, VA 23220 USA
| | - William Snipes
- Department of Health Education and Promotion, Mail Stop 529, East Carolina University, 1000 East 5 Street, Greenville, NC 27858 USA
- Center for the Study of Tobacco Products, Virginia Commonwealth University, 100 W Franklin St., Suite 200, Richmond, VA 23220 USA
| | - Molly Heym
- Department of Health Education and Promotion, Mail Stop 529, East Carolina University, 1000 East 5 Street, Greenville, NC 27858 USA
- Center for the Study of Tobacco Products, Virginia Commonwealth University, 100 W Franklin St., Suite 200, Richmond, VA 23220 USA
| | - AnneMarie Coffey
- Department of Health Education and Promotion, Mail Stop 529, East Carolina University, 1000 East 5 Street, Greenville, NC 27858 USA
- Center for the Study of Tobacco Products, Virginia Commonwealth University, 100 W Franklin St., Suite 200, Richmond, VA 23220 USA
| | - Mignonne Guy
- Center for the Study of Tobacco Products, Virginia Commonwealth University, 100 W Franklin St., Suite 200, Richmond, VA 23220 USA
- Department of African American Studies, College of Humanities and Sciences, Virginia Commonwealth University, 816 W Franklin Street, Richmond, VA 23284 USA
| | - Alison Breland
- Center for the Study of Tobacco Products, Virginia Commonwealth University, 100 W Franklin St., Suite 200, Richmond, VA 23220 USA
- Department of Psychology, College of Humanities and Sciences, Virginia Commonwealth University, 806 West Franklin Street, Richmond, VA, 23284 USA
| | - Pebbles Fagan
- Center for the Study of Tobacco Products, Virginia Commonwealth University, 100 W Franklin St., Suite 200, Richmond, VA 23220 USA
- Department of Health Behavior and Health Education, Fay W. Boozman College of Public Health, Center for the Study of Tobacco, University of Arkansas for Medical Sciences, 4301 West Markham Street, Little Rock, AR 72205 USA
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24
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Melero-Ollonarte JL, Lidón-Moyano C, Perez-Ortuño R, Fu M, Ballbè M, Martín-Sánchez JC, González-Marrón A, Cartanyà-Hueso À, Pascual JA, Fernández E, Martínez-Sánchez JM. Specific biomarker comparison in current smokers, e-cigarette users, and non-smokers. Addict Behav 2023; 140:107616. [PMID: 36680837 DOI: 10.1016/j.addbeh.2023.107616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 12/19/2022] [Accepted: 01/06/2023] [Indexed: 01/09/2023]
Abstract
INTRODUCTION This study aims to address the existing gap in the literature, while adding evidence, by comparing tobacco-specific biomarkers (cotinine and nitrosamines: NNK, NNAL, NNN), and other biomarkers of e-cigarette use (humectants: glycerol, 1,2-PD, 1,3-PD) according to five study groups. METHODS A pooling analysis including two different studies was conducted. In both analyses, we took saliva samples from smokers (n = 409) and non-smokers (n = 154), dual tobacco and e-cig users (n = 92), exclusive e-cig user with nicotine (n = 158), and exclusive e-cig users without nicotine (n = 38). We analyzed and compared the geometric means (GM) and geometric standard deviations (GSD) of the concentration of tobacco-specific biomarkers, and e-cigarette biomarkers among groups. We used log-linear models adjusted for sex and age to model the change percentage and their 95% confidence intervals. RESULTS Cotinine was significantly higher in nicotine consumers and in e-cigarette users without nicotine when compared to non-smokers. TSNAs were generally significantly lower in non-smokers and higher in nicotine consumers. NNN and NNAL were lower in e-cigarette users with nicotine comparted to smokers, and NNN was higher in e-cigarette users without nicotine when compared to non-smokers. No differences were found in humectant biomarkers between e-cigarette groups. CONCLUSIONS Although there was a reduction in TSNAs in e-cigarette exclusive users compared to smokers, and a reduction of cotinine concentrations in e-cigarette exclusive users without nicotine compared to smokers, there are still high levels of these biomarkers when compared to non-smokers, which may be a clue towards the harmful effect of e-cigarettes.
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Affiliation(s)
- Juan Luis Melero-Ollonarte
- Group of Evaluation of Health Determinants and Health Policies, Department of Basic Sciences, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Spain
| | - Cristina Lidón-Moyano
- Group of Evaluation of Health Determinants and Health Policies, Department of Basic Sciences, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Spain.
| | - Raúl Perez-Ortuño
- Group of Integrative Pharmacology and Systems Neuroscience, Neurosciences Programme, IMIM (Hospital del Mar Medical Research Institute), Parc de Recerca Biomèdica de Barcelona, Barcelona, Spain
| | - Marcela Fu
- Tobacco Control Unit, Cancer Prevention and Control Program, Institut Català d'Oncologia, l'Hospitalet de Llobregat, Barcelona, Spain; Tobacco Control Research Group, Epidemiology, Public Health, Cancer Prevention and Palliative Care Programme, Institut d'Investigació Biomèdica de Bellvitge - IDIBELL, l'Hospitalet de Llobregat, Barcelona, Spain; Department of Public Health, Mental Health, and Maternal and Child Health Nursing, Faculty of Medicine and Health Sciences - Bellvitge Campus, Universitat de Barcelona, Barcelona, Spain; Center for Biomedical Research in Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Montse Ballbè
- Tobacco Control Unit, Cancer Prevention and Control Program, Institut Català d'Oncologia, l'Hospitalet de Llobregat, Barcelona, Spain; Tobacco Control Research Group, Epidemiology, Public Health, Cancer Prevention and Palliative Care Programme, Institut d'Investigació Biomèdica de Bellvitge - IDIBELL, l'Hospitalet de Llobregat, Barcelona, Spain; Center for Biomedical Research in Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; Addictions Unit, Institute of Neurosciences, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Juan Carlos Martín-Sánchez
- Group of Evaluation of Health Determinants and Health Policies, Department of Basic Sciences, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Spain
| | - Adrián González-Marrón
- Group of Evaluation of Health Determinants and Health Policies, Department of Basic Sciences, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Spain
| | - Àurea Cartanyà-Hueso
- Group of Evaluation of Health Determinants and Health Policies, Department of Basic Sciences, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Spain; Group of Perinatal Epidemiology, Environmental Health, and Clinical Research, Department of Medicine, School of Health Sciences, Universitat Jaume I, Av. Vicent Sos Baynat, s/n 12071 Castelló de la Plana, Spain
| | - José A Pascual
- Group of Integrative Pharmacology and Systems Neuroscience, Neurosciences Programme, IMIM (Hospital del Mar Medical Research Institute), Parc de Recerca Biomèdica de Barcelona, Barcelona, Spain; Department of Medicine and Life Sciences, Universitat Pompeu Fabra, Parc de Recerca Biomèdica de Barcelona, Barcelona, Spain
| | - Esteve Fernández
- Department of Clinical Sciences, Faculty of Medicine and Health Sciences - Bellvitge Campus, Universitat de Barcelona, Barcelona, Spain; Tobacco Control Research Group, Epidemiology, Public Health, Cancer Prevention and Palliative Care Programme, Institut d'Investigació Biomèdica de Bellvitge - IDIBELL, l'Hospitalet de Llobregat, Barcelona, Spain; Department of Public Health, Mental Health, and Maternal and Child Health Nursing, Faculty of Medicine and Health Sciences - Bellvitge Campus, Universitat de Barcelona, Barcelona, Spain; Center for Biomedical Research in Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Jose M Martínez-Sánchez
- Group of Evaluation of Health Determinants and Health Policies, Department of Basic Sciences, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Spain; Tobacco Control Unit, Cancer Prevention and Control Program, Institut Català d'Oncologia, l'Hospitalet de Llobregat, Barcelona, Spain; Tobacco Control Research Group, Epidemiology, Public Health, Cancer Prevention and Palliative Care Programme, Institut d'Investigació Biomèdica de Bellvitge - IDIBELL, l'Hospitalet de Llobregat, Barcelona, Spain
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25
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Eversole A, Budd S, Karaoghlanian N, Lipato T, Eissenberg T, Breland AB. Interactive effects of protonated nicotine concentration and device power on ENDS nicotine delivery, puff topography, and subjective effects. Exp Clin Psychopharmacol 2023; 31:443-454. [PMID: 35696157 PMCID: PMC10082447 DOI: 10.1037/pha0000576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Electronic nicotine delivery systems (ENDSs) produce an aerosol by heating a liquid that often contains nicotine. The nicotine can be protonated that may make the aerosol easier to inhale than freebase nicotine. This study's purpose is to determine, in cigarette smokers and ENDS users, the effects of three concentrations of protonated nicotine aerosolized at two different power settings. Forty-five participants (22 cigarette smokers and 23 ENDS users) completed some or all of six sessions that varied by liquid nicotine concentration (10, 15, or 30 mg/ml protonated nicotine) and device power (15 or 30 W). Participants took 10 puffs from each product and then used each product for 90 min ad libitum. Plasma nicotine concentration, subjective effects, and puff topography were measured. Results showed increases in plasma nicotine concentration in all conditions, with greater plasma nicotine increases in higher watt, higher nicotine concentration conditions, as well as greater nicotine delivery for ENDS users compared to cigarette smokers. For puff topography, puff duration and volume decreased as nicotine concentration and power increased, and ENDS users took longer and larger puffs than cigarette smokers. Participants rated the higher watt, higher nicotine concentration conditions as harsher and with more throat hit. Overall, these results suggest that device characteristics and liquid constituents interact to influence users' plasma nicotine delivery and should be considered together when regulating ENDS. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Elsherif R, Abdellah NZ, Hussein OA, Shaltout ES. Evaluation of hazards of electronic -cigarette's liquid refill on testes of mice, complemented by histopathological and chromatographic analysis. Ultrastruct Pathol 2023; 47:1-14. [PMID: 36841752 DOI: 10.1080/01913123.2023.2178569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 02/27/2023]
Abstract
Electronic-cigarettes (e-cigarettes) are devices designed to become an alternative to classic cigarettes. Vaping of e-cigarettes and their recharge liquid have become extremely popular among the adolescents; however, its safety is not well established. Evaluation of the components of e-cigarette liquid and their potential effects on testis of adult male mice. This aim will be fulfilled by histological, ultrastructural, and immunohistochemical analysis of mice testis biopsies. Twenty mice were allocated into two groups of equal size. The control group was given regular saline, whereas the treated group was given e-liquid (contains 3 mg of nicotine/kg of body weight) both groups daily intraperitoneally injected for 3 weeks. Analysis of e-liquid by Gas Chromatography-Mass Spectrometric GC/MS demonstrated nicotine, phenol, vanillin, aldehydes, and pyrethroid insecticide. Evaluation of oxidative stress parameters revealed significant reduction of SOD and GPx. Histological results revealed a significant reduction in the height of seminiferous tubules, sloughing of spermatogenic cells, most cells being dark and pyknotic, and thickening of the interstitium with accumulation of PAS positive exudate. Most spermatogenic cells showed degenerative changes as rarefied cytoplasm, ill-defined electron-dense nuclei, and elongated spermatid showed deformity of ectoplasmic specialization. Immunohistochemical studies revealed a significant increase in caspase-3 positive cells and a significant reduction of area % of E-cadherin. The analysis of an available E-liquid demonstrated potentially harmful chemicals that are not shown in the labeling of the product. E-liquid appears to impair anti-oxidant defense and cause degenerative changes in the body and disruption of blood testes barrier BTB. So, e-cigarettes cannot be regarded as a non-harmful smoking replacement.
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Affiliation(s)
- Raghda Elsherif
- Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Nora Z Abdellah
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Ola A Hussein
- Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Eman S Shaltout
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Assiut University, Assiut, Egypt
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Hirschtick JL, Cook S, Patel A, Barnes GD, Arenberg D, Bondarenko I, Levy DT, Jeon J, Jimenez Mendoza E, Meza R, Fleischer NL. Longitudinal Associations Between Exclusive and Dual Use of Electronic Nicotine Delivery Systems and Cigarettes and Self-Reported Incident Diagnosed Cardiovascular Disease Among Adults. Nicotine Tob Res 2023; 25:386-394. [PMID: 35907264 PMCID: PMC9910147 DOI: 10.1093/ntr/ntac182] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 07/14/2022] [Accepted: 07/21/2022] [Indexed: 11/14/2022]
Abstract
INTRODUCTION The cardiovascular health effects of electronic nicotine delivery systems (ENDS) use are not well characterized, making it difficult to assess ENDS as a potential harm reduction tool for adults who use cigarettes. AIMS AND METHODS Using waves 1-5 of the Population Assessment of Tobacco and Health Study (2013-2019), we analyzed the risk of self-reported incident diagnosed myocardial infarction (MI; 280 incident cases) and stroke (186 incident cases) associated with ENDS and/or cigarette use among adults aged 40 + using discrete time survival models. We employed a time-varying exposure lagged by one wave, defined as exclusive or dual established use of ENDS and/or cigarettes every day or some days, and controlled for demographics, clinical factors, and past smoking history. RESULTS The analytic samples (MI = 11 031; stroke = 11 076) were predominantly female and non-Hispanic White with a mean age of 58 years. At baseline, 14.2% of respondents exclusively smoked cigarettes, 0.6% exclusively used ENDS, and 1.0% used both products. Incident MI and stroke were rare during follow-up (< 1% at each wave). Compared to no cigarette or ENDS use, exclusive cigarette use increased the risk of MI (aHR 1.99, 95% CI = 1.40-2.84) and stroke (aHR 2.26, 95% CI = 1.51-3.39), while exclusive ENDS use (MI: aHR 0.61, 95% CI = 0.12-3.04; stroke: aHR 1.74, 95% CI = 0.55-5.49) and dual use (MI: aHR 1.84, 95% CI = 0.64-5.30; stroke: aHR 1.12, 95% CI = 0.33-3.79) were not significantly associated with the risk of either outcome. CONCLUSIONS Compared to non-use, exclusive cigarette use was associated with an increased risk of self-reported incident diagnosed cardiovascular disease over a 5-year period, while ENDS use was not associated with a statistically significant increase in the outcomes. IMPLICATIONS Existing literature on the health effects of ENDS use has important limitations, including potential reverse causation and improper control for cigarette smoking. We accounted for these issues by using a prospective design and adjusting for current and former smoking status and cigarette pack-years. In this context, we did not find that ENDS use was associated with a statistically significant increase in self-reported incident diagnosed myocardial infarction or stroke over a 5-year period. While more studies are needed, this analysis provides an important foundation and key methodological considerations for future research on the health effects of ENDS use.
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Affiliation(s)
- Jana L Hirschtick
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Steven Cook
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Akash Patel
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Geoffrey D Barnes
- Frankel Cardiovascular Center, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, MI, USA
| | - Douglas Arenberg
- Pulmonary Clinic, Department of Internal Medicine, University of Michigan Health System, Northville, MI, USA
| | - Irina Bondarenko
- Department of Biostatistics, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - David T Levy
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, D.C., USA
| | - Jihyoun Jeon
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Evelyn Jimenez Mendoza
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Rafael Meza
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Nancy L Fleischer
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
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Milstred AR, Douglas AE, Romm KF, Blank MD. Evaluation of the Psychometric Properties of Dependence Measures for Exclusive Electronic Cigarette Users. Nicotine Tob Res 2023; 25:563-570. [PMID: 36377569 PMCID: PMC9910153 DOI: 10.1093/ntr/ntac260] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/09/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Extant electronic cigarette (ECIG) dependence measures are largely adapted from those designed for cigarette smoking, though few have been evaluated for their psychometric properties. AIMS AND METHODS Never-smoking ECIG users (N = 134) participating in an online survey completed four dependence measures: Penn state electronic cigarette dependence index (PSECDI), e-cigarette dependence scale (EDS-4), diagnostic and statistical manual for tobacco use disorder (DSM-5), and Glover Nilsson behavioral questionnaire (GNBQ). They also reported on their ECIG use characteristics (eg, behaviors and reasons). RESULTS Internal consistency was highest for the EDS-4 (Cronbach's α = 0.88) followed by the GNBQ (α = 0.75), PSECDI (α = 0.72), and DSM (α = 0.71). Confirmatory factor analyses revealed a single-factor structure for the PSECDI, EDS-4, and GNBQ. For the DSM-5, however, two items did not load significantly (ECIG use interferes with responsibilities; reduce/give up activities because of ECIG use). Significant correlations were observed between all measures and the number of ECIG use days/week and/or years using ECIGs, as well as between DSM-5 scores and the number of ECIG quit attempts and initiation age. Endorsement of using ECIGs because "I like flavors" was correlated positively with DSM-5 and GNBQ scores. CONCLUSIONS All dependence measures evaluated herein demonstrated adequate reliability and construct validity. Future work should focus on determining which aspects of dependence are those that are unique to ECIG use, and subsequently developing a more comprehensive measure of ECIG dependence. IMPLICATIONS The measures assessed herein-PSECDI, EDS-4, DSM-5, and GNBQ-demonstrated adequate to good reliability and construct validity among a sample of never-smoking ECIG users. The dependence domains covered across measures were related yet distinct. Findings demonstrate the need for future evaluation of these different domains to determine which are the most salient characteristics of ECIG dependence.
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Affiliation(s)
- Andrea R Milstred
- Department of Psychology, Eberly College of Arts and Sciences, West Virginia University, Morgantown, WV 26508, USA
| | - Ashley E Douglas
- Department of Psychology, Eberly College of Arts and Sciences, West Virginia University, Morgantown, WV 26508, USA
| | - Katelyn F Romm
- Department of Prevention and Community Health, Milken Institute School of Public Health, George Washington University, Washington, DC 20052, USA
| | - Melissa D Blank
- Department of Psychology, Eberly College of Arts and Sciences, West Virginia University, Morgantown, WV 26508, USA
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29
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Elektrische Zigaretten – Stand der Forschung aus gefäßmedizinischer Sicht. GEFÄSSCHIRURGIE 2023. [DOI: 10.1007/s00772-023-00974-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Douglas AE, Felicione NJ, Childers MG, Soule EK, Blank MD. Predictors of electronic cigarette dependence among non-smoking electronic cigarette users: User behavior and device characteristics. Addict Behav 2023; 137:107500. [PMID: 36194979 PMCID: PMC10873757 DOI: 10.1016/j.addbeh.2022.107500] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/25/2022] [Accepted: 09/19/2022] [Indexed: 11/21/2022]
Abstract
INTRODUCTION ECIGs differ in their ability to deliver nicotine to the user and, consequently, they may differ in their ability to produce dependence. This study examined individual device characteristics, device type, and user behaviors as predictors of ECIG dependence in a sample of never-smoking ECIG users. METHODS Participants (N = 134) completed an online survey that assessed demographics, ECIG use behavior, and ECIG dependence as measured via the Penn State Electronic Nicotine Dependence Index (PSECDI) and E-cigarette Dependence Scale (EDS-4). Participants uploaded a picture of their personal ECIG device/liquid, which was coded by raters to identify product features. Multivariable linear regressions examined device characteristics (e.g., adjustable power, nicotine concentration) and device type (e.g., vape pen, mod, pod, modern disposable) as predictors of dependence controlling for demographics and user behaviors (e.g., ECIG use duration and frequency, other tobacco use). RESULTS Longer durations of ECIG use and more use days/week were associated significantly with higher PSECDI (β's = 0.91 and 1.90, respectively; p's < 0.01) and EDS-4 scores (β's = 0.16 and 0.28, respectively; p's < 0.01). Higher nicotine concentrations were associated with higher PSECDI scores only (β = 0.07, p =.011). Dependence scores did not differ as a function of ECIG device types after controlling for covariates. CONCLUSIONS ECIG dependence was observed among the never-smoking ECIG users in this sample, regardless of their ECIG device/liquid features. Findings suggest that regulatory efforts aimed at reducing the dependence potential of ECIGs in never smokers should focus on overall nicotine emissions rather than product features.
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Affiliation(s)
- Ashley E Douglas
- Department of Psychology, West Virginia University, Morgantown, WV, United States.
| | - Nicholas J Felicione
- Department of Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States.
| | - Margaret G Childers
- Department of Psychology, West Virginia University, Morgantown, WV, United States.
| | - Eric K Soule
- Health Education and Promotion, East Carolina University, Greenville, NC, United States.
| | - Melissa D Blank
- Department of Psychology, West Virginia University, Morgantown, WV, United States.
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Soule E, Bansal-Travers M, Grana R, McIntosh S, Price S, Unger JB, Walton K. Electronic cigarette use intensity measurement challenges and regulatory implications. Tob Control 2023; 32:124-129. [PMID: 34059553 PMCID: PMC8630087 DOI: 10.1136/tobaccocontrol-2021-056483] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 11/04/2022]
Abstract
Assessing tobacco use intensity allows researchers to examine tobacco use in greater detail than assessing ever or current use only. Tobacco use intensity measures have been developed that are specific to tobacco products, such as asking smokers to report number of cigarettes smoked per day. However, consensus on electronic cigarette use intensity measures that can be used for survey research has yet to be established due to electronic cigarette product and user behavior heterogeneity. While some survey measures that attempt to assess electronic cigarette use intensity exist, such as examining number of 'times' using an electronic cigarette per day, number of puffs taken from an electronic cigarette per day, volume of electronic cigarette liquid consumed per day, or nicotine concentration of electronic cigarette liquid, most measures have limitations. Challenges in electronic cigarette measurement often stem from variations across electronic cigarette device and liquid characteristics as well as the difficulty that many electronic cigarette users have regarding answering questions about their electronic cigarette device, liquid, or behavior. The inability for researchers to measure electronic cigarette use intensity accurately has important implications such as failing to detect unintended consequences of regulatory policies. Development of electronic cigarette use intensity measures, though not without its challenges, can improve understanding of electronic cigarette use behaviors and associated health outcomes and inform development of regulatory policies.
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Affiliation(s)
- Eric Soule
- Department of Health Education and Promotion, East Carolina University, Greenville, North Carolina, USA
| | | | - Rachel Grana
- Tobacco Control Research Branch, National Cancer Institute, Rockville, Maryland, USA
| | - Scott McIntosh
- Public Health Sciences, University of Rochester, Rochester, New York, USA
| | - Simani Price
- Public Health and Epidemiology Practice, Westat, Center for Coordination of Analytics, Science, Enhancement, and Logistics, Rockville, Maryland, USA
| | - Jennifer B Unger
- Preventive Medicine, University of Southern California, Los Angeles, California, USA
| | - Kevin Walton
- Division of Therapeutics and Medical Consequences, National Institute on Drug Abuse, Bethesda, Maryland, USA
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Campbell C, Jin T, Round EK, Schmidt E, Nelson P, Baxter S. Part one: abuse liability of Vuse Solo (G2) electronic nicotine delivery system relative to combustible cigarettes and nicotine gum. Sci Rep 2022; 12:22080. [PMID: 36543869 PMCID: PMC9772348 DOI: 10.1038/s41598-022-26417-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
Abuse liability (AL) of electronic nicotine delivery systems (ENDS) is relevant as the category increases in popularity as a potentially less-harmful alternative to cigarette smoking. AL assessments are important to the FDA in determining if a new product is appropriate for the protection of public health. This paper reports the results for Vuse Solo (G2 cartridge design) compared to high and low AL-comparators evaluated in an open-label, randomized crossover confinement AL study. The confinement design was adapted from previous ambulatory studies of Vuse Solo (G1 cartridge design) and included product familiarization sessions before each four-hour test session in which subjective measures, nicotine pharmacokinetics (PK), and physiological endpoints were assessed following a single 10-min ad libitum product use session. Product liking, intent to use again, suppression of urge to smoke, and nicotine PK were lower after use of Vuse Solo compared to cigarettes and higher after use of Vuse Solo compared to nicotine gum. No significant differences in blood pressure or heart rate were observed between the products pre- to post-product use. These data reinforce previous research and provide the scientific evidence to support regulatory decisions demonstrating that Vuse Solo has an AL profile lower than that of combustible cigarettes but higher than that of nicotine gum and, therefore, may be a suitable replacement for cigarette smoking for some adult smokers.
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Affiliation(s)
- Chris Campbell
- RAI Services Company, 401 N. Main Street, Winston-Salem, NC, 27101, USA.
| | - Tao Jin
- RAI Services Company, 401 N. Main Street, Winston-Salem, NC, 27101, USA
| | - Elaine K Round
- RAI Services Company, 401 N. Main Street, Winston-Salem, NC, 27101, USA
| | - Eckhardt Schmidt
- RAI Services Company, 401 N. Main Street, Winston-Salem, NC, 27101, USA
| | - Paul Nelson
- Retired Employee of RAI Services Company, Winston-Salem, NC, 27101, USA
| | - Sarah Baxter
- RAI Services Company, 401 N. Main Street, Winston-Salem, NC, 27101, USA
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Boozary LK, Frank-Pearce SG, Alexander AC, Sifat MS, Kurien J, Waring JJ, Ehlke SJ, Businelle MS, Ahluwalia JS, Kendzor DE. Tobacco use characteristics, treatment preferences, and motivation to quit among adults accessing a day shelter in Oklahoma City. DRUG AND ALCOHOL DEPENDENCE REPORTS 2022; 5:100117. [PMID: 36844157 PMCID: PMC9949321 DOI: 10.1016/j.dadr.2022.100117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 10/07/2022] [Accepted: 11/04/2022] [Indexed: 11/08/2022]
Abstract
Background Smoking rates are exceptionally high among adults experiencing homelessness (AEH). Research is needed to inform treatment approaches in this population. Methods Participants (n=404) were adults who accessed an urban day shelter and reported current smoking. Participants completed surveys regarding their sociodemographic characteristics, tobacco and substance use, mental health, motivation to quit smoking (MTQS), and smoking cessation treatment preferences. Participant characteristics were described and compared by MTQS. Results Participants who reported current smoking (N=404) were primarily male (74.8%); White (41.4%), Black (27.8%), or American Indian/Alaska Native (14.1%) race; and 10.7% Hispanic. Participants reported a mean age of 45.6 (SD=11.2) years, and they smoked an average of 12.6 (SD=9.4) cigarettes per day. Most participants reported moderate or high MTQS (57%) and were interested in receiving free cessation treatment (51%). Participants most frequently selected the following options as among the top 3 treatments that offered the best chance of quitting: Nicotine replacement therapy (25%), money/gift cards for quitting (17%), prescription medications (17%), and switching to e-cigarettes (16%). Craving (55%), stress/mood (40%), habit (39%), and being around other smokers (36%) were frequently identified as the most challenging aspects of quitting. Low MTQS was associated with White race, lack of religious participation, lack of health insurance, lower income, greater cigarettes smoked per day, and higher expired carbon monoxide. Higher MTQS was associated with sleeping unsheltered, cell phone ownership, higher health literacy, more years of smoking, and interest in free treatment. Discussion Multi-level, multi-component interventions are needed to address tobacco disparities among AEH.
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Affiliation(s)
- Laili Kharazi Boozary
- Department of Psychology, Cellular and Behavioral Neurobiology, University of Oklahoma, Norman OK 73019
- TSET Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Summer G. Frank-Pearce
- TSET Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
- Department of Biostatistics and Epidemiology, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Adam C. Alexander
- TSET Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
- Department of Family and Preventive Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Munjireen S. Sifat
- TSET Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Jasmin Kurien
- TSET Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Joseph J.C. Waring
- Bloomberg School of Public of Health, Johns Hopkins University, Baltimore, MD, United States
| | - Sarah J. Ehlke
- TSET Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Michael S. Businelle
- TSET Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
- Department of Family and Preventive Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
| | - Jasjit S. Ahluwalia
- School of Public Health, Behavioral and Social Sciences, Brown University, Providence, RI, United States
| | - Darla E. Kendzor
- TSET Health Promotion Research Center, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
- Department of Family and Preventive Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
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Nighbor TD, Browning KO, Reed EN, Oliver AC, DeSarno MJ, Kurti AN, Bickel WK, Higgins ST. Using an experimental tobacco marketplace to pilot test the substitutability of JUUL e-cigarettes and other alternative nicotine and tobacco products for conventional cigarettes among vulnerable populations. Prev Med 2022; 165:107122. [PMID: 35787842 PMCID: PMC9724801 DOI: 10.1016/j.ypmed.2022.107122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/21/2022] [Accepted: 06/27/2022] [Indexed: 11/15/2022]
Abstract
The Experimental Tobacco Marketplace (ETM) is an online research marketplace where increasing the cost of cigarettes is used to investigate the substitutability of other fixed-price tobacco products such as electronic nicotine delivery systems (ENDS). The ETM is useful for modeling effects of potential policy changes on use of various concurrently available products. To our knowledge, the ETM has not been used to investigate substitutability of newer generation e-cigarettes or populations at increased risk for smoking, heavy smoking, nicotine dependence, and smoking-attributable adverse effects. In the current pilot study, participants were 30 adult daily smokers with socioeconomic disadvantage or comorbid psychiatric conditions (substance-use disorder or mental illness). In each session, cigarette prices increased ($0.12, $0.25, $0.50, $1.00. and $2.00 per cigarette) while prices for alternative products remained fixed. Across three ETM sessions, either all products, all products except little cigars and cigarillos (LCCs), or all products except ENDS (JUUL e-cigarettes) were available. Linear regression was performed on individual participant data using log-transformed cigarette price to determine demand and substitution. Cigarette demand decreased as price increased across sessions (significantly non-zero slopes, ps ≤ 0.0001). When all products were available, ENDS substitution increased as cigarette price increased (significantly non-zero slope, p = .016). When LCCs were unavailable, ENDS again were a significant substitute (p = .008). When ENDS were unavailable, LCCs did not substitute (ps ≥ 0.48). In all sessions, participants rarely purchased other products (e.g., snus). Overall, ENDS were the most robust substitute for cigarettes, further underscoring the potential importance of ENDS availability on the impact of tobacco regulatory policies.
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Affiliation(s)
- Tyler D Nighbor
- Vermont Center on Behavior and Health, United States of America
| | - Kaitlyn O Browning
- Vermont Center on Behavior and Health, United States of America; Department of Psychiatry, University of Vermont, United States of America
| | - Ellaina N Reed
- Vermont Center on Behavior and Health, United States of America
| | | | - Michael J DeSarno
- Vermont Center on Behavior and Health, United States of America; Department of Medical Biostatistics, University of Vermont, United States of America
| | - Allison N Kurti
- Vermont Center on Behavior and Health, United States of America
| | - Warren K Bickel
- Addiction Recovery Research Center, Virginia Tech Carillion Research Institute, United States of America
| | - Stephen T Higgins
- Vermont Center on Behavior and Health, United States of America; Department of Psychiatry, University of Vermont, United States of America; Department of Psychological Science, University of Vermont, United States of America.
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Hoetger C, Bono RS, White AM, Barnes AJ, Cobb CO. The interaction of nicotine concentration and device power on electronic nicotine delivery system (ENDS) abuse liability among exclusive ENDS users and dual users of ENDS and combustible cigarettes. Exp Clin Psychopharmacol 2022; 30:973-982. [PMID: 34647773 PMCID: PMC9284402 DOI: 10.1037/pha0000523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Open-system electronic nicotine delivery systems (ENDS) permit modifications to device characteristics such as power, potentially increasing nicotine and toxicant delivery. Limiting liquid nicotine concentration may carry unintended consequences by prompting users to increase device power to increase nicotine delivery. This study examined the abuse liability of ENDS across nicotine concentration and power settings. In a clinical laboratory study, n = 19 exclusive ENDS users and n = 13 dual ENDS/cigarette users, aged 21-55 completed four Latin-square ordered conditions that varied by liquid nicotine concentration (10 mg/ml [low], 30 mg/ml [high]) and device power (15 watts [low], 30 watts [high]), that were followed by a fifth own brand (OB) condition. A progressive ratio task (PRT) using bar presses to earn ENDS puffs was used to assess abuse liability and compare between conditions using mixed effects linear regressions. The low nicotine/high watt condition was associated with a significantly higher number of bar presses and puffs earned relative to the OB ENDS, high nicotine/high watt, and high nicotine/low watt conditions (p < .05). Findings appeared to be driven largely by exclusive ENDS users; most comparisons were not significant among dual users. Participants worked significantly harder for puffs of low nicotine/high watt ENDS, highlighting previous findings that suggest limiting liquid nicotine concentration without addressing power settings may be insufficient to reduce the abuse liability of ENDS. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Affiliation(s)
- Cosima Hoetger
- Department of Psychology, Virginia Commonwealth University
- Center for the Study of Tobacco Products, Virginia Commonwealth University
| | - Rose S. Bono
- Center for the Study of Tobacco Products, Virginia Commonwealth University
- Department of Health Behavior and Policy, Virginia Commonwealth University
| | - Augustus M. White
- Center for the Study of Tobacco Products, Virginia Commonwealth University
- Department of Health Behavior and Policy, Virginia Commonwealth University
| | - Andrew J. Barnes
- Center for the Study of Tobacco Products, Virginia Commonwealth University
- Department of Health Behavior and Policy, Virginia Commonwealth University
| | - Caroline O. Cobb
- Department of Psychology, Virginia Commonwealth University
- Center for the Study of Tobacco Products, Virginia Commonwealth University
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Kirshenbaum AP, Hughes JR. Reinforcement enhancement by nicotine: A novel abuse-liability assessment of e-cigarettes in young adults. Exp Clin Psychopharmacol 2022; 30:959-972. [PMID: 34166033 PMCID: PMC8702578 DOI: 10.1037/pha0000496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Nicotine can act as a primary positive reinforcer, and as negative reinforcer to relieve withdrawal; we tested whether it can also enhance the reinforcing efficacy of non-drug reinforcers. Young-adult never-users were delivered nicotine via e-cigarette, and a videogame reinforcer was used to test nicotine enhancement. Three dose groups were tested (placebo-only, 6 or 12-mg nicotine), and participants returned to the lab for several sessions over the course of 1 month. Those in the two nicotine-dose groups received placebo on some occasions and nicotine on others; nicotine enhancement of the videogame reinforcer was assessed in a within-subjects fashion by comparing each of the two nicotine groups' dedicated nicotine dose to placebo. In the placebo-only group, progressive-ratio (PR) schedule breakpoints did not alter as a function of videogame exposure, suggesting that the videogame retained its basic-reinforcing properties throughout the study. For the two groups that received nicotine, both doses of nicotine increased PR-schedule breakpoints for the videogame reinforcer relative to the placebo condition. Although nicotine was associated with greater subjective evaluation of the enjoyment of the videogame, it was unrelated to the enjoyment of the e-cigarette device. No evidence was found that nicotine elevated either anhedonia or withdrawal symptoms in the timeframe of the study. The results provide initial evidence that nicotine enhancement, via electronic cigarettes, occurs in non-frequent users of nicotine products and may be a reason they can develop nicotine dependence in the absence of withdrawal and direct effects of nicotine. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Tehrani H, Rajabi A, Ghelichi- Ghojogh M, Nejatian M, Jafari A. The prevalence of electronic cigarettes vaping globally: a systematic review and meta-analysis. Arch Public Health 2022; 80:240. [PMID: 36415010 PMCID: PMC9682677 DOI: 10.1186/s13690-022-00998-w] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 11/07/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND The purpose of this systematic review study was to determine the national, regional, and global prevalence of electronic cigarettes (e-cigarettes) vaping. METHOD The articles were searched in July 2020 without a time limit in Web of Science (ISI), Scopus, PubMed, and Ovid-MEDLINE. At first, the titles and abstracts of the articles were reviewed, and if they were appropriate, they entered the second stage of screening. In the second stage, the whole articles were reviewed and articles that met the inclusion criteria were selected. In this study, search, selection of studies, qualitative evaluation, and data extraction were performed by two authors independently, and any disagreement between the two authors was reviewed and corrected by a third author. RESULTS In this study, the lifetime and current prevalence of e-cigarettes vaping globally were 23% and 11%, respectively. Lifetime and current prevalence of e-cigarettes vaping in women were 16% and 8%, respectively. Also, lifetime and current prevalence of e-cigarettes vaping in men were 22% and 12%, respectively. In this study, the current prevalence of e-cigarettes vaping in who had lifetime smoked conventional cigarette was 39%, and in current smokers was 43%. The lifetime prevalence of e-cigarettes vaping in the Continents of America, Europe, Asia, and Oceania were 24%, 26%, 16%, and 25%, respectively. The current prevalence of e-cigarettes vaping in the Continents of America, Europe, Asia, and Oceania were 10%, 14%, 11%, and 6%, respectively. CONCLUSIONS Based on the results of this study, it can be concluded that the popularity of e-cigarettes is increasing globally. Therefore, it is necessary for countries to have more control over the consumption and distribution of e-cigarettes, as well as to formulate the laws prohibiting about the e-cigarettes vaping in public places. There is also a need to design and conduct information campaigns to increase community awareness about e-cigarettes vaping.
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Affiliation(s)
- Hadi Tehrani
- Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Health Education and Health Promotion, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abdolhalim Rajabi
- Environmental Health Research Center, Department of Biostatistics and Epidemiology, Faculty of Health, Golestan University of Medical Sciences, Gorgan, Iran
| | | | - Mahbobeh Nejatian
- Social Determinants of Health Research Center, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Alireza Jafari
- Department of Health Education and Health Promotion, School of Health, Social Development and Health Promotion Research Center, Gonabad University of Medical Sciences, Gonabad, Iran
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Perucic AM, Sandoval RC, Malik S, Morales-Zamora G. Taxation of novel and emerging nicotine and tobacco products (HTPs, ENDS, and ENNDS) globally and in Latin America. Rev Panam Salud Publica 2022; 46:e175. [PMID: 36267147 PMCID: PMC9559335 DOI: 10.26633/rpsp.2022.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 05/23/2022] [Indexed: 11/24/2022] Open
Abstract
This article provides a snapshot of the market structure and regulatory approaches around novel and emerging tobacco and nicotine products, both globally and in Latin America, with a focus on excise taxation. Using data from leading market research companies, the WHO Report on the Global Tobacco Epidemic 2021, and country laws and decrees, the article analyses the evolution and market structure of heated tobacco products (HTPs), electronic nicotine delivery systems (ENDS), and electronic non-nicotine delivery systems (ENNDS). This is followed by a summary review of regulatory approaches adopted by countries toward these products, with a particular focus on excise tax policies currently implemented. Based on the well-established knowledge about tobacco taxation best practices and on WHO’s recent recommendations on the taxation of novel and emerging tobacco and nicotine products, the authors then discuss possible elements of a good tax policy approach for countries to consider.
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Affiliation(s)
| | | | - Sehr Malik
- Pan American Health Organization, Washington, D.C., United States of America
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Howard BC, McRobbie H, Petrie D, Barker D, Mendelsohn C, Anderson J, Borland R, Naughton F, Tutka P, Zwar N, Boland VC, Aiken A, Shakeshaft A, Gartner C, Richmond RL, Hall W, Mattick RP, Farrell M, Courtney RJ. Effectiveness, safety and cost-effectiveness of vaporized nicotine products versus nicotine replacement therapy for tobacco smoking cessation in a low-socioeconomic status Australian population: a study protocol for a randomized controlled trial. Trials 2022; 23:777. [PMID: 36104702 PMCID: PMC9473457 DOI: 10.1186/s13063-022-06644-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/06/2022] [Indexed: 11/18/2022] Open
Abstract
Background In Australia, tobacco smoking rates have declined but inequalities remain with significantly higher smoking prevalence among low-socioeconomic populations. Clinical trial data suggest vaporized nicotine products (VNPs) aid smoking cessation. Most VNP trials have used refillable tank systems, but newer generation (pod) devices now comprise the largest market share yet have limited clinical trial evidence on safety and effectiveness. This study evaluates the effectiveness, safety and cost-effectiveness of VNPs (pod and tank device) compared with nicotine replacement therapy ([NRT]—gum or lozenge) for smoking cessation. Methods This is a two-arm, open-label, superiority, parallel group, randomized controlled trial (RCT) with allocation concealment and blinded outcome assessment. The RCT is conducted at the National Drug and Alcohol Research Centre at the University of New South Wales, Sydney, Australia. Participants are people who smoke daily, are interested in quitting and receive a government pension or allowance (N = 1058). Participants will be randomized (1:1 ratio) to receive 8 weeks of free: VNPs, with pod (40 mg/mL nicotine salt) and tank device (18 mg/mL freebase nicotine) in mixed flavours; or NRT (gum or lozenge; 4 mg). All participants will receive daily text message behavioural support for 5 weeks. Assessments will be undertaken by telephone at baseline, with three follow-up calls (two check-in calls within the first month and final follow-up at 7 months post randomization) to ascertain smoking status, treatment adherence and adverse events. The primary outcome is 6-month continuous abstinence verified by carbon monoxide breath test of ≤5ppm at 7-month follow-up. Safety and cost-effectiveness of VNPs versus NRT will also be evaluated. Discussion Further data are required to strengthen certainty of evidence for VNPs aiding smoking cessation, particularly for newer generation pod devices. To our knowledge, this trial is the first to offer choice of VNPs and no comparative effectiveness trial data exists for new pod devices. If effective, the findings can inform wider implementation of VNPs to aid smoking cessation in a priority group. Trial registration Australian New Zealand Clinical Trials Registry ACTRN12621000076875. Registered on 29 January 2021. https://www.anzctr.org.au Supplementary Information The online version contains supplementary material available at 10.1186/s13063-022-06644-8.
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Gravely S, Meng G, Hammond D, Hyland A, Michael Cummings K, Borland R, Kasza KA, Yong HH, Thompson ME, Quah ACK, Ouimet J, Martin N, O'Connor RJ, East KA, McNeill A, Boudreau C, Levy DT, Sweanor DT, Fong GT. Differences in cigarette smoking quit attempts and cessation between adults who did and did not take up nicotine vaping: Findings from the ITC four country smoking and vaping surveys. Addict Behav 2022; 132:107339. [PMID: 35605409 PMCID: PMC9202449 DOI: 10.1016/j.addbeh.2022.107339] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 03/10/2022] [Accepted: 04/17/2022] [Indexed: 11/17/2022]
Abstract
INTRODUCTION There is mixed evidence as to whether nicotine vaping products (NVPs) can help adults who smoke transition away from cigarettes. This study investigated if self-reported attempts to quit smoking and smoking cessation, over a period of either 18 or 24 months, differed between respondents who initiated nicotine vaping versus those who did not. Outcome comparisons were made between those who: (1) initiated vaping vs. those who did not; (2) initiated daily or non-daily vaping vs. those who did not; and (3) initiated daily or non-daily vaping between surveys and continued to vape at follow-up (daily or non-daily) vs. those who did not initiate vaping. METHODS This cohort study included 3516 respondents from the ITC Four Country Smoking and Vaping Surveys (Australia, Canada, England, United Sates), recruited at Wave 1 (2016) or 2 (2018) and followed up at Wave 2 (18 months) and/or 3 (2020, 24 months). Adults who smoked daily at baseline and did not have a history of regular vaping were included. Initiation of vaping was defined as beginning to vape at least monthly between surveys. Respondents indicated whether they made an attempt to quit smoking between surveys. Smoking cessation was defined as those who self-reported no longer smoking cigarettes at follow-up. RESULTS Relative to those who did not initiate vaping, initiation of any daily vaping between surveys was associated with a greater likelihood of smokers making a cigarette quit attempt (p < 0.001) and quitting smoking (p < 0.001). Among smokers who attempted to quit smoking, initiation of daily vaping was associated with a greater likelihood of being abstinent from smoking at follow-up (p = 0.001). Respondents who initiated vaping between surveys and were vaping daily at follow up were significantly more likely to have attempted to quit smoking (p < 0.001) and to have quit smoking (p < 0.001) than those who did not initiate vaping. Respondents who initiated non-daily vaping did not differ significantly from those who did not initiate vaping on any of the outcome measures. CONCLUSIONS Daily NVP use was associated with increased attempts to quit smoking and abstinence from smoking cigarettes. These findings are consistent with the concept that complete cigarette substitution may be more likely to be achieved when smokers vape nicotine daily.
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Affiliation(s)
| | - Gang Meng
- Department of Psychology, University of Waterloo, Canada
| | - David Hammond
- School of Public Health Sciences, University of Waterloo, Canada
| | - Andrew Hyland
- Department of Health Behavior, Division of Cancer Prevention & Population Sciences, Roswell Park Comprehensive Cancer Center, USA
| | - K Michael Cummings
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, USA
| | - Ron Borland
- Melbourne Centre for Behaviour Change, School of Psychological Sciences, University of Melbourne, Australia
| | - Karin A Kasza
- Department of Health Behavior, Division of Cancer Prevention & Population Sciences, Roswell Park Comprehensive Cancer Center, USA
| | - Hua-Hie Yong
- School of Psychology, Deakin University, Australia
| | - Mary E Thompson
- Department of Statistics and Actuarial Science, University of Waterloo, Canada
| | - Anne C K Quah
- Department of Psychology, University of Waterloo, Canada
| | - Janine Ouimet
- Department of Psychology, University of Waterloo, Canada
| | - Nadia Martin
- Department of Psychology, University of Waterloo, Canada
| | - Richard J O'Connor
- Department of Health Behavior, Division of Cancer Prevention & Population Sciences, Roswell Park Comprehensive Cancer Center, USA
| | - Katherine A East
- School of Public Health Sciences, University of Waterloo, Canada; Department of Addictions, Institute of Psychiatry, Psychology & Neuroscience, King's College London, England
| | - Ann McNeill
- Department of Addictions, Institute of Psychiatry, Psychology & Neuroscience, King's College London, England; Shaping Public Health Policies to Reduce Inequalities & Harm (SPECTRUM), UK
| | - Christian Boudreau
- Department of Statistics and Actuarial Science, University of Waterloo, Canada
| | - David T Levy
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, USA
| | | | - Geoffrey T Fong
- Department of Psychology, University of Waterloo, Canada; School of Public Health Sciences, University of Waterloo, Canada; Ontario Institute for Cancer Research, Canada
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Pratt SI, Ferron JC, Brunette MF, Santos M, Sargent J, Xie H. E-Cigarette Provision to Promote Switching in Cigarette Smokers With Serious Mental Illness-A Randomized Trial. Nicotine Tob Res 2022; 24:1405-1412. [PMID: 35363874 PMCID: PMC9356685 DOI: 10.1093/ntr/ntac082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 03/16/2022] [Accepted: 03/28/2022] [Indexed: 11/12/2022]
Abstract
BACKGROUND High cigarette smoking prevalence and low quit rates in people with serious mental illness (SMI) contribute to disparate rates of chronic disease and premature death. This prospective trial tested the impact of switching to a potentially lower-harm nicotine-containing product on smoking in this population. AIMS AND METHODS A total of 240 cigarette smokers with SMI who tried but were currently unwilling to quit were randomly assigned to receive disposable e-cigarettes for 8 weeks or not, with assessments at baseline, 2, 4, 6, 8, 13, and 26 weeks. Generalized linear mixed models examined the effects of e-cigarette provision on e-cigarette appeal, cigarettes per day (CPD), breath carbon monoxide (CO), nicotine dependence, and side effects. Clinical Trial registration: NCT03050853. RESULTS Self-reported smoking was similar between groups at baseline (mean = 18.7 CPD). By week 2, 79% of the e-cigarette group were using e-cigarettes daily. During weeks 2-8, CPD and CO decreased in the e-cigarette versus assessment-only group (eg, 7.5 CPD [95% CI = 5.9, 9.2] vs. 18.1 CPD [CI = 16.4, 19.8] and 16.4 ppm [CI = 13.4, 19.5] vs. 25.4 ppm [CI = 22.4, 28.9], respectively, at week 2). Additionally, 19%-22% in the e-cigarette group reported smoking no cigarettes in weeks 2-8 compared to 0% in the assessment-only group. By 13 and 26 weeks, group differences in CPD, but not CO, remained significant. Nicotine dependence did not increase and side effects were minor. CONCLUSIONS Providing e-cigarettes for 8 weeks to smokers with SMI resulted in substantial reductions in CPD and CO. Enhancing and maintaining switching from cigarettes to e-cigarettes warrant further study. IMPLICATIONS This was the first prospective study to compare e-cigarette provision with assessments only to evaluate the appeal and impact of e-cigarettes on smoking behavior, carbon monoxide exposure, and nicotine dependence among smokers with SMI who had tried but were unable to quit and were not currently interested in cessation treatment. The finding that e-cigarette provision led to significant reductions in smoking and carbon monoxide without increasing nicotine dependence has implications for reducing harm not only among the millions of smokers with SMI who struggle to quit, but also for other vulnerable smokers who cannot achieve cessation.
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Affiliation(s)
- Sarah I Pratt
- Department of Psychiatry, Geisel School of Medicine at Dartmouth, Concord, NH, USA
- C. Everett Koop Institute, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Joelle C Ferron
- Department of Psychiatry, Geisel School of Medicine at Dartmouth, Concord, NH, USA
| | - Mary F Brunette
- Department of Psychiatry, Geisel School of Medicine at Dartmouth, Concord, NH, USA
- C. Everett Koop Institute, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Meghan Santos
- Department of Psychiatry, Geisel School of Medicine at Dartmouth, Concord, NH, USA
| | - James Sargent
- C. Everett Koop Institute, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
| | - Haiyi Xie
- Department of Biomedical Data Sciences, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
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Orzabal MR, Naik VD, Lee J, Hillhouse AE, Brashear WA, Threadgill DW, Ramadoss J. Impact of E-cig aerosol vaping on fetal and neonatal respiratory development and function. Transl Res 2022; 246:102-114. [PMID: 35351623 PMCID: PMC9197928 DOI: 10.1016/j.trsl.2022.03.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/09/2022] [Accepted: 03/23/2022] [Indexed: 11/15/2022]
Abstract
Electronic cigarette (e-cig) use has increased over the past decade, and exposure to e-cig aerosols during pregnancy raises concern for maternal and fetal health. The developing fetal lung is known to be sensitive to prenatal tobacco product exposure. Utilizing a 3-pronged approach, we examined the effects of prenatal e-cig aerosols with, and without nicotine on respiratory development in a murine model. RNAseq analysis of fetal lungs revealed extensive dysregulation in gene expression. Morphologic assessment of distal airspaces in neonatal lungs display an emphysematic phenotype. Respiratory mechanics of neonates display signs of increased respiratory workload, with increased resistance and decreased compliance. These data are novel and provide evidence that prenatal e-cig exposure may result in altered lung function or development of disease.
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Affiliation(s)
- Marcus R Orzabal
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Vishal D Naik
- Department of Obstetrics & Gynecology, C.S. Mott Center for Human growth and Development, School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Jehoon Lee
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Andrew E Hillhouse
- Institute for Genome Sciences and Society, Texas A&M University, College Station, Texas, USA
| | - Wesley A Brashear
- Institute for Genome Sciences and Society, Texas A&M University, College Station, Texas, USA
| | - David W Threadgill
- Institute for Genome Sciences and Society, Texas A&M University, College Station, Texas, USA
| | - Jayanth Ramadoss
- Department of Obstetrics & Gynecology, C.S. Mott Center for Human growth and Development, School of Medicine, Wayne State University, Detroit, Michigan, USA; Department of Physiology, School of Medicine, Wayne State University, Detroit, Michigan, USA.
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Trifunovic S, Smiljanić K, Sickmann A, Solari FA, Kolarevic S, Divac Rankov A, Ljujic M. Electronic cigarette liquids impair metabolic cooperation and alter proteomic profiles in V79 cells. Respir Res 2022; 23:191. [PMID: 35840976 PMCID: PMC9285873 DOI: 10.1186/s12931-022-02102-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/02/2022] [Indexed: 11/20/2022] Open
Abstract
Background Although still considered a safer alternative to classical cigarettes, growing body of work points to harmful effects of electronic cigarettes (e-cigarettes) affecting a range of cellular processes. The biological effect of e-cigarettes needs to be investigated in more detail considering their widespread use. Methods In this study, we treated V79 lung fibroblasts with sub-cytotoxic concentration of e-cigarette liquids, with and without nicotine. Mutagenicity was evaluated by HPRT assay, genotoxicity by comet assay and the effect on cellular communication by metabolic cooperation assay. Additionally, comprehensive proteome analysis was performed via high resolution, parallel accumulation serial fragmentation-PASEF mass spectrometry. Results E-cigarette liquid concentration used in this study showed no mutagenic or genotoxic effect, however it negatively impacted metabolic cooperation between V79 cells. Both e-cigarette liquids induced significant depletion in total number of proteins and impairment of mitochondrial function in treated cells. The focal adhesion proteins were upregulated, which is in accordance with the results of metabolic cooperation assay. Increased presence of posttranslational modifications (PTMs), including carbonylation and direct oxidative modifications, was observed. Data are available via ProteomeXchange with identifier PXD032071. Conclusions Our study revealed impairment of metabolic cooperation as well as significant proteome and PTMs alterations in V79 cells treated with e-cigarette liquid warranting future studies on e-cigarettes health impact. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-02102-w.
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Affiliation(s)
- Sara Trifunovic
- Biology of Robustness Group, Mediterranean Institute for Life Sciences, Split, Croatia.
| | - Katarina Smiljanić
- Department of Biochemistry and Centre of Excellence for Molecular Food Sciences, University of Belgrade, Faculty of Chemistry, Studentski Trg 12-14, 11000, Belgrade, Serbia
| | - Albert Sickmann
- Leibniz-Institut Für Analytische Wissenschaften - ISAS - E.V., Bunsen-Kirchhoff-Straße 11, Dortmund, Germany.,Medizinische Fakultät, Medizinisches Proteom-Center (MPC), Ruhr-Universität Bochum, 44801, Bochum, Germany.,Department of Chemistry, College of Physical Sciences, University of Aberdeen, Aberdeen, AB243FX, Scotland, UK
| | - Fiorella A Solari
- Leibniz-Institut Für Analytische Wissenschaften - ISAS - E.V., Bunsen-Kirchhoff-Straße 11, Dortmund, Germany
| | - Stoimir Kolarevic
- Department of Hydroecology and Water Protection, Institute for Biological Research "Sinisa Stankovic", National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Aleksandra Divac Rankov
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Mila Ljujic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
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Cohen JE, Hardesty JJ, Nian Q, Crespi E, Sinamo JK, Kennedy RD, Welding K, Kaplan B, Soule E, Eissenberg T, Breland AB. Combinations of Electronic Nicotine Delivery System Device and Liquid Characteristics among U.S. adults. Addict Behav 2022; 135:107441. [DOI: 10.1016/j.addbeh.2022.107441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/22/2022] [Accepted: 07/22/2022] [Indexed: 11/01/2022]
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Floyd E, Oni T, Cai C, Rehman B, Hwang J, Watson T. Validation of a High Flow Rate Puff Topography System Designed for Measurement of Sub-Ohm, Third Generation Electronic Nicotine Delivery Systems. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19137989. [PMID: 35805644 PMCID: PMC9265855 DOI: 10.3390/ijerph19137989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/26/2022] [Accepted: 06/27/2022] [Indexed: 02/01/2023]
Abstract
There are few known puff topography devices designed solely for gathering electronic cigarette puff topography information, and none made for high-powered sub-ohm devices. Ten replicate Bernoulli flow cells were designed and 3D printed. The relationship between square root of pressure difference and flow rate was determined across 0−70 L/min. One representative flow cell was used to estimate puff volume and flow rate under six simulated puffing regimes (0.710 L, 2.000 L and 3.000 L, at low and high flow rates) to determine the system’s accuracy and utility of using dual pressure sensors for flow measurement. The relationship between flow rate and square root of pressure differential for the ten replicate cells was best fit with a quadratic model (R2 = 0.9991, p < 0.0001). The higher-pressure sensor was accurate at both low and high flow rates for 0.71 L (102% and 111% respectively), 2.00 L (96% and 103% respectively), and 3.00 L (100.1% and 107% respectively) but the lower-pressure sensor provided no utility, underpredicting volume and flow. This puff topography system generates very little resistance to flow, easily fits between user’s atomizer and mouthpiece, and is calibrated to measure flows up to 70 L/min.
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Affiliation(s)
- Evan Floyd
- Department of Occupational and Environmental Health, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (T.O.); (C.C.); (J.H.); (T.W.)
- Correspondence:
| | - Toluwanimi Oni
- Department of Occupational and Environmental Health, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (T.O.); (C.C.); (J.H.); (T.W.)
| | - Changjie Cai
- Department of Occupational and Environmental Health, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (T.O.); (C.C.); (J.H.); (T.W.)
| | - Bilal Rehman
- University of Oklahoma Health Sciences Center, University of Oklahoma College of Medicine, Oklahoma City, OK 73104, USA;
| | - Jooyeon Hwang
- Department of Occupational and Environmental Health, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (T.O.); (C.C.); (J.H.); (T.W.)
| | - Tyler Watson
- Department of Occupational and Environmental Health, Hudson College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (T.O.); (C.C.); (J.H.); (T.W.)
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Espinoza-Derout J, Shao XM, Lao CJ, Hasan KM, Rivera JC, Jordan MC, Echeverria V, Roos KP, Sinha-Hikim AP, Friedman TC. Electronic Cigarette Use and the Risk of Cardiovascular Diseases. Front Cardiovasc Med 2022; 9:879726. [PMID: 35463745 PMCID: PMC9021536 DOI: 10.3389/fcvm.2022.879726] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 03/11/2022] [Indexed: 12/12/2022] Open
Abstract
Electronic cigarettes or e-cigarettes are the most frequently used tobacco product among adolescents. Despite the widespread use of e-cigarettes and the known detrimental cardiac consequences of nicotine, the effects of e-cigarettes on the cardiovascular system are not well-known. Several in vitro and in vivo studies delineating the mechanisms of the impact of e-cigarettes on the cardiovascular system have been published. These include mechanisms associated with nicotine or other components of the aerosol or thermal degradation products of e-cigarettes. The increased hyperlipidemia, sympathetic dominance, endothelial dysfunction, DNA damage, and macrophage activation are prominent effects of e-cigarettes. Additionally, oxidative stress and inflammation are unifying mechanisms at many levels of the cardiovascular impairment induced by e-cigarette exposure. This review outlines the contribution of e-cigarettes in the development of cardiovascular diseases and their molecular underpinnings.
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Affiliation(s)
- Jorge Espinoza-Derout
- Division of Endocrinology, Metabolism and Molecular Medicine, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Xuesi M. Shao
- Division of Endocrinology, Metabolism and Molecular Medicine, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Candice J. Lao
- Division of Endocrinology, Metabolism and Molecular Medicine, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
| | - Kamrul M. Hasan
- Division of Endocrinology, Metabolism and Molecular Medicine, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Juan Carlos Rivera
- Division of Endocrinology, Metabolism and Molecular Medicine, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
| | - Maria C. Jordan
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Valentina Echeverria
- Research and Development Service, Bay Pines VA Healthcare System, Bay Pines, FL, United States
- Laboratorio de Neurobiología, Facultad de Ciencias de la Salud, Universidad San Sebastián, Concepción, Chile
| | - Kenneth P. Roos
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Amiya P. Sinha-Hikim
- Division of Endocrinology, Metabolism and Molecular Medicine, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Theodore C. Friedman
- Division of Endocrinology, Metabolism and Molecular Medicine, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States
- David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Friends Research Institute, Cerritos, CA, United States
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Sosnoff CS, Caron K, Akins JR, Dortch K, Hunter RE, Pine BN, Feng J, Blount BC, Li Y, van Bemmel DM, Kimmel HL, Edwards KC, Goniewicz ML, Hatsukami DK, de Castro BR, Bernert JT, Arnstein S, Borek N, Deng-Bryant Y, Mishina E, Lawrence C, Hyland A, Hecht SS, Conway KP, Pirkle JL, Wang L. Serum Concentrations of Cotinine and Trans-3'-Hydroxycotinine in US Adults: Results From Wave 1 (2013-2014) of the Population Assessment of Tobacco and Health Study. Nicotine Tob Res 2022; 24:736-744. [PMID: 34897512 PMCID: PMC8962725 DOI: 10.1093/ntr/ntab240] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 08/30/2021] [Accepted: 11/15/2021] [Indexed: 01/01/2023]
Abstract
INTRODUCTION The Population Assessment of Tobacco and Health (PATH) Study is a nationally representative cohort of tobacco product users and nonusers. The study's main purpose is to obtain longitudinal epidemiologic data on tobacco use and exposure among the US population. AIMS AND METHODS Nicotine biomarkers-cotinine (COT) and trans-3'-hydroxycotinine (HCT)-were measured in blood samples collected from adult daily tobacco users and nonusers during Wave 1 of the PATH Study (2013-2014; n = 5012; one sample per participant). Participants' tobacco product use and exposure to secondhand smoke were categorized based on questionnaire responses. Nonusers were subdivided into never users and recent former users. Daily tobacco users were classified into seven tobacco product use categories: exclusive users of cigarette, smokeless tobacco, electronic cigarette, cigar, pipe, and hookah, as well as polyusers. We calculated sample-weighted geometric mean (GM) concentrations of cotinine, HCT, and the nicotine metabolite ratio (NMR) and evaluated their associations with tobacco use with adjustment for potential confounders. RESULTS The GMs (95% confidence intervals) of COT and HCT concentrations for daily tobacco users were 196 (184 to 208) and 72.5 (67.8 to 77.4) ng/mL, and for nonusers they were 0.033 (0.028 to 0.037) and 0.021 (0.018 to 0.023) ng/mL. Exclusive smokeless tobacco users had the highest COT concentrations of all user groups examined. The GM NMR in daily users was 0.339 (95% confidence interval: 0.330 to 0.350). CONCLUSIONS These nationally representative estimates of serum nicotine biomarkers could be the basis for reference ranges characterizing nicotine exposure for daily tobacco users and nonusers in the US adult population. IMPLICATIONS This report summarizes the serum nicotine biomarker measurements in Wave 1 of the PATH Study. We are reporting the first estimates of HCT in serum for daily tobacco users and nonusers in the noninstitutionalized, civilian US adult population; the first nationally representative serum COT estimates for daily exclusive users of different tobacco products and daily polyusers; and the first nationally representative estimate of the serum NMR in daily tobacco users by age, race/ethnicity, and sex.
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Affiliation(s)
- Connie S Sosnoff
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Kevin Caron
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - J Ricky Akins
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Kristin Dortch
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Ronald E Hunter
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Brittany N Pine
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - June Feng
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Benjamin C Blount
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Yao Li
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Dana M van Bemmel
- Office of Science, Center for Tobacco Products, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Heather L Kimmel
- Division of Epidemiology, Services and Prevention Research, National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD, USA
| | | | - Maciej L Goniewicz
- Roswell Park Comprehensive Cancer Center, Roswell Park Cancer Institute, Buffalo, NY, USA
| | | | - B Rey de Castro
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - John T Bernert
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Stephen Arnstein
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Nicolette Borek
- Office of Science, Center for Tobacco Products, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Ying Deng-Bryant
- Office of Science, Center for Tobacco Products, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Elena Mishina
- Office of Science, Center for Tobacco Products, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | | | - Andrew Hyland
- Roswell Park Comprehensive Cancer Center, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Stephen S Hecht
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Kevin P Conway
- Division of Epidemiology, Services and Prevention Research, National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD, USA
| | - James L Pirkle
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Lanqing Wang
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
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Wu W, Tian L, Zhang W, Booth JL, Ritchey JW, Wu S, Xu C, Brown BR, Metcalf JP. Early IFN-β administration protects cigarette smoke exposed mice against lethal influenza virus infection without increasing lung inflammation. Sci Rep 2022; 12:4080. [PMID: 35260752 PMCID: PMC8902729 DOI: 10.1038/s41598-022-08066-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 02/25/2022] [Indexed: 11/21/2022] Open
Abstract
During influenza A virus (IAV) infection, it is unclear whether type I interferons (IFNs) have defensive antiviral effects or contribute to immunopathology in smokers. We treated nonsmoking (NS) and cigarette smoke (CS)-exposed mice intranasally with early (prophylactic) or late (therapeutic) IFN-β. We compared the mortality and innate immune responses of the treated mice following challenge with IAV. In NS mice, both early and late IFN-β administration decreased the survival rate in mice infected with IAV, with late IFN-β administration having the greatest effect on survival. In contrast, in CS-exposed mice, early IFN-β administration significantly increased survival during IAV infection while late IFN-β administration did not alter mortality. With regards to inflammation, in NS mice, IFN-β administration, especially late administration, significantly increased IAV-induced inflammation and lung injury. Early IFN-β administration to CS-exposed mice did not increase IAV-induced inflammation and lung injury as occurred in NS mice. Our results demonstrate, although IFN-β administration worsens the susceptibility of NS mice to influenza infection with increased immunopathology, early IFN-β administration to CS-exposed mice, which have suppression of the intrinsic IFN response, improved outcomes during influenza infection.
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Affiliation(s)
- Wenxin Wu
- Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Oklahoma Health Sciences Center, Room 425, RP1, 800 N. Research Pkwy., Oklahoma City, OK, 73104, USA.
| | - Lili Tian
- Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Oklahoma Health Sciences Center, Room 425, RP1, 800 N. Research Pkwy., Oklahoma City, OK, 73104, USA
| | - Wei Zhang
- Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Oklahoma Health Sciences Center, Room 425, RP1, 800 N. Research Pkwy., Oklahoma City, OK, 73104, USA
| | - J Leland Booth
- Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Oklahoma Health Sciences Center, Room 425, RP1, 800 N. Research Pkwy., Oklahoma City, OK, 73104, USA
| | - Jerry William Ritchey
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK, USA
| | - Shuhua Wu
- Division of Geriatrics, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Chao Xu
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Brent R Brown
- Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Oklahoma Health Sciences Center, Room 425, RP1, 800 N. Research Pkwy., Oklahoma City, OK, 73104, USA
| | - Jordan P Metcalf
- Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Oklahoma Health Sciences Center, Room 425, RP1, 800 N. Research Pkwy., Oklahoma City, OK, 73104, USA.
- Veterans Affairs Medical Center, Oklahoma City, OK, USA.
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
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O'Connor R, Schneller LM, Felicione NJ, Talhout R, Goniewicz ML, Ashley DL. Evolution of tobacco products: recent history and future directions. Tob Control 2022; 31:175-182. [PMID: 35241585 DOI: 10.1136/tobaccocontrol-2021-056544] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 11/04/2021] [Indexed: 12/23/2022]
Abstract
Declines in cigarette smoking prevalence in many countries and the consolidation of the tobacco industry have prompted the introduction of other forms of nicotine delivery. These include electronic nicotine delivery systems (ENDS), heated tobacco products (HTPs) and oral nicotine products (ONPs). Evolving over time, some of these products now deliver nicotine at levels comparable to cigarettes and may serve as effective substitutes for smokers. However, certain products, especially ENDS like JUUL, have also appealed to youth and non-smokers, prompting concerns about expanding nicotine use (and potentially nicotine addiction). The tobacco industry could shift away from primarily promoting cigarettes to promoting ENDS, HTPs and/or ONPs, though at this time it continues to heavily promote cigarettes in low and middle-income countries. Differing regulatory regimes may place upward and downward pressures on both cigarettes and these newer products in terms of population use, and may ultimately drive the extent to which cigarettes are or are not displaced by ENDS, HTPs and/or ONPs in the coming decade.
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Affiliation(s)
- Richard O'Connor
- Department of Health Behavior, Roswell Park Cancer Institute, Buffalo, New York, USA richard.o'
| | - Liane M Schneller
- Department of Health Behavior, Roswell Park Cancer Institute, Buffalo, New York, USA
| | - Nicholas J Felicione
- Health Behavior, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
| | - Reinskje Talhout
- National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | | | - David L Ashley
- School of Public Health, Georgia State University, Atlanta, Georgia, USA
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Huh Y, Min Lee C, Cho HJ. Comparison of nicotine dependence between single and
multiple tobacco product users among South Korean adults. Tob Induc Dis 2022; 20:22. [PMID: 35291560 PMCID: PMC8879064 DOI: 10.18332/tid/145899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/16/2021] [Accepted: 01/16/2022] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION The relationship between nicotine dependence and the use of multiple tobacco products, such as heated tobacco products (HTPs), electronic cigarettes (ECs), and combustible cigarettes (CCs), is not well investigated. We evaluated nicotine dependence symptoms among South Korean adults among single and multiple tobacco product users. METHODS We conducted an online survey involving 7000 adults aged 20–69 years in November 2018 and compared the nicotine dependence among single, dual, and triple use of tobacco products. Nicotine dependence was measured for ‘time to the first use of tobacco products within 5 min’, ‘awaking at night’, ‘strong craving’, ‘uncontrollable urge to smoke’, and ‘irritability or restlessness’. Adjusted odds ratios (AORs) and 95% confidence intervals (CIs) for nicotine dependence symptoms based on the number of tobacco products were estimated using multivariable logistic regression analysis. RESULTS The current prevalence of use of tobacco products was 27.5%. Proportion of dual and triple uses were: 28.3%, 13.7% for CCs; 36.5%, 50.2% for ECs; and 54.0%, 33.1% for HTPs. Nicotine dependence tended to be higher as the number of tobacco products used increased for most measures, except for ECs with the measure ‘time to first use of tobacco products within 5 min’. The ORs of ‘awaking at night’ increased approximately three times for dual users (OR=2.87; 95% CI: 1.29–6.39, for current EC users) and seven times for triple users (OR=7.24; 95% CI: 3.66–14.31, for current HTP users) compared to that for single users. CONCLUSIONS Multiple tobacco product users reported higher nicotine dependence symptoms than single users. High nicotine dependence of multiple tobacco product users may hamper the future cessation of tobacco products, which can be challenging for future tobacco control policies in South Korea.
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Affiliation(s)
- Youn Huh
- Department of Family Medicine, Uijeongbu Eulji Medical Center, Eulji University School of Medicine, Uijeongbu, Republic of Korea
| | - Cheol Min Lee
- Department of Family Medicine, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Hong-Jun Cho
- Department of Family Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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