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https://www.readbyqxmd.com/read/29355819/effects-of-six-weeks-of-electronic-cigarette-use-on-smoking-rate-co-cigarette-dependence-and-motivation-to-quit-smoking-a-pilot-study
#1
Damaris J Rohsenow, Jennifer W Tidey, Rosemarie A Martin, Suzanne M Colby, Thomas Eissenberg
OBJECTIVES: Switching from combustible tobacco cigarettes to electronic cigarettes (e-cigs) may or may not help smokers to reduce cigarette consumption and toxicant exposure. This pilot study investigated the effects of asking smokers to switch to e-cigs for 6weeks on smoking, exhaled carbon monoxide (CO) concentration, dependence, and motivation to quit smoking. METHODS: Non-treatment seeking daily smokers (n=18) were given free e-cigs and instructed to use them instead of smoking cigarettes for 6weeks...
January 11, 2018: Addictive Behaviors
https://www.readbyqxmd.com/read/29321926/lung-injury-associated-with-electronic-cigarettes-inhalation-diagnosed-by-transbronchial-lung-biopsy
#2
Masayuki Itoh, Kazutetsu Aoshiba, Yoriko Herai, Hiroyuki Nakamura, Tamiko Takemura
A 46-year-old healthy man developed respiratory distress, night sweats, fever, and weight loss after using electronic cigarettes (e-cigs) for approximately 1 month. He presented to the hospital when the symptoms worsened 2 months after onset. The findings of bronchoalveolar lavage (BAL) fluid examination and the following transbronchial lung biopsy examination led to the diagnosis of acute alveolitis: intra-alveolar fibrosis accompanied with exudate containing abundant lipid-laden macrophages, eosinophils, and neutrophils...
January 2018: Respirology Case Reports
https://www.readbyqxmd.com/read/29306962/initial-ratings-of-different-types-of-e-cigarettes-and-relationships-between-product-appeal-and-nicotine-delivery
#3
Peter Hajek, Dunja Przulj, Anna Phillips-Waller, Rebecca Anderson, Hayden McRobbie
AIMS: Little is known about features of e-cigarettes (EC) that facilitate or hinder the switch from smoking to vaping. We tested eight brands of EC to determine how nicotine delivery and other product characteristics influence user's initial reactions. METHODS: Fifteen vapers tested each product after overnight abstinence from both smoking and vaping. At each session, participant's vaped ad lib for 5 min. Blood samples were taken at baseline and at 2, 4, 6, 8, 10 and 30 min after starting vaping...
January 6, 2018: Psychopharmacology
https://www.readbyqxmd.com/read/29295483/differences-between-dual-users-and-switchers-center-around-vaping-behavior-and-its-experiences-rather-than-beliefs-and-attitudes
#4
Karolien Adriaens, Dinska Van Gucht, Frank Baeyens
(1) Background: Many smokers completely switch to vaping (switchers), whereas others use e-cigarettes (e-cigs) alongside tobacco cigarettes (dual users). To the extent that dual users substantially lower the number of cigarettes, they will reduce health risks from smoking. However, from a medical point of view, exclusive vaping is preferable to dual use; (2) Methods: Using an online questionnaire we assessed behavioral, cognitive and attitudinal aspects of e-cig use in smoking and ex-smoking vapers; (3) Results: Our sample consisted of 19% dual users and 81% switchers...
December 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29201950/using-the-vape-shop-standardized-tobacco-assessment-for-retail-settings-v-stars-to-assess-product-availability-price-promotions-and-messaging-in-new-hampshire-vape-shop-retailers
#5
Amanda Y Kong, Jessica L Eaddy, Susan L Morrison, Donna Asbury, Kristine M Lindell, Kurt M Ribisl
Objectives: This is the first statewide census of the product availability, price promotions, and product messaging of vape shops. Methods: A comprehensive list of New Hampshire vape shops was developed through a previously validated online search method. Store audits were conducted in 55 stores between January and February 2016 using the Vape Shop Standardized Tobacco Assessment for Retail Settings (V-STARS). Results: Modifiable devices and cig-alikes were sold in 92...
April 2017: Tobacco Regulatory Science
https://www.readbyqxmd.com/read/29191599/limited-mutagenicity-of-electronic-cigarettes-in-mouse-or-human-cells-in-vitro
#6
Stella Tommasi, Steven E Bates, Rachel Z Behar, Prue Talbot, Ahmad Besaratinia
OBJECTIVES: Electronic cigarettes (e-cig), which are promoted as safe alternatives to tobacco cigarettes or as aides to smoking cessation, are becoming increasingly popular among adult chronic smokers and adolescents experimenting with tobacco products. Despite the known presence of toxicants and carcinogens in e-cig liquid and vapor, the possible carcinogenic effects of e-cig use in humans are unknown. MATERIALS AND METHODS: We have utilized two validated in vitro model systems to investigate whether e-cig vapor induces mutation in mouse or human cells...
October 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/29175027/measuring-perceptions-related-to-e-cigarettes-important-principles-and-next-steps-to-enhance-study-validity
#7
REVIEW
Laura A Gibson, MeLisa R Creamer, Alison B Breland, Aida Luz Giachello, Annette Kaufman, Grace Kong, Terry F Pechacek, Jessica K Pepper, Eric K Soule, Bonnie Halpern-Felsher
Measuring perceptions associated with e-cigarette use can provide valuable information to help explain why youth and adults initiate and continue to use e-cigarettes. However, given the complexity of e-cigarette devices and their continuing evolution, measures of perceptions of this product have varied greatly. Our goal, as members of the working group on e-cigarette measurement within the Tobacco Centers of Regulatory Science (TCORS) network, is to provide guidance to researchers developing surveys concerning e-cigarette perceptions...
November 20, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/29102637/assessment-of-reactive-oxygen-species-generated-by-electronic-cigarettes-using-acellular-and-cellular-approaches
#8
Jiayuan Zhao, Yipei Zhang, Jennifer D Sisler, Justine Shaffer, Stephen S Leonard, Anna M Morris, Yong Qian, Dhimiter Bello, Philip Demokritou
Electronic cigarettes (e-cigs) have fast increased in popularity but the physico-chemical properties and toxicity of the generated emission remain unclear. Reactive oxygen species (ROS) are likely present in e-cig emission and can play an important role in e-cig toxicity. However, e-cig ROS generation is poorly documented. Here, we generated e-cig exposures using a recently developed versatile exposure platform and performed systematic ROS characterization on e-cig emissions using complementary acellular and cellular techniques: 1) a novel acellular Trolox-based mass spectrometry method for total ROS and hydrogen peroxide (H2O2) detection, 2) electron spin resonance (ESR) for hydroxyl radical detection in an acellular and cellular systems and 3) in vitro ROS detection in small airway epithelial cells (SAEC) using the dihydroethidium (DHE) assay...
October 29, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29097631/chronic-exposure-to-electronic-cigarette-e-cig-results-in-impaired-cardiovascular-function-in-mice
#9
I Mark Olfert, Evan DeVallance, Hannah Hoskinson, Kayla W Branyan, Stuart Clayton, Christopher R Pitzer, David Patrick Sullivan, Matthew J Breit, Zhong-Xin Wu, Powsiri Klinkhachorn, W Kyle Mandler, Brett H Erdreich, Barbara S Ducatman, Randy W Bryner, Piyali Dasgupta, Paul D Chantler
Proponents for electronic cigarettes(E-cigs) claim they are a safe alternative to smoking tobacco-based cigarettes,however little is known about the long-term effects of E-cig vapor exposure on vascular function.The purpose of this study was to determine the cardiovascular consequences of chronic E-cig exposure. Female mice (C57Bl/6 background strain)were randomly assigned to chronic daily exposure of E-cig vapor, standard cigarette smoke(using 3R4F-reference-cigarette), or filtered-air(N=15/group). Respective whole-body exposures consisted of 4 x 1-hour exposure blocks, separated by 30-minute intervals of fresh air breaks, resulting in intermittent daily exposure for a total of 4h/day, 5days/week for 8-months...
November 2, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29069879/the-surgical-impact-of-e-cigarettes-a-case-report-and-review-of-the-current-literature
#10
REVIEW
Megan Fracol, Robert Dorfman, Lindsay Janes, Swati Kulkarni, Kevin Bethke, Nora Hansen, John Kim
We report a case of a 51 years old female with a 25 pack year smoking history who underwent bilateral mastectomy and immediate tissue expander reconstruction for newly diagnosed right breast cancer. The patient reported herself as a non-smoker despite significant e-cigarette use, with resulting significant mastectomy skin flap necrosis and breast reconstruction failure. Little is known about the physiologic effect of e-cigarettes on wound healing and tissue perfusion. To this end, we provide an updated review of the impact of e-cigarettes on surgical outcomes...
November 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/29057201/-essentially-all-models-are-wrong-but-some-are-useful-a-preliminary-conceptual-model-of-co-occurring-e-cig-and-alcohol-use
#11
Alexandra Hershberger, Melissa A Cyders
PURPOSE OF REVIEW: As prevalence rates of electronic cigarette (e-cig) use increase, researchers and clinicians should not only be paying careful attention to the direct health effects of e-cigs, but also the potential impact e-cigs may have on alcohol use behaviors. We review the current state of the literature and propose a conceptual model for the relationship between e-cig and alcohol use, including important consequences, mechanisms, and moderators of this relationship. RECENT FINDINGS: The model is based in emerging literature examining the direct relationship between e-cig and alcohol use, as well as indirect evidence concerning potential mechanisms from research on cigarette and alcohol use...
June 2017: Current Addiction Reports
https://www.readbyqxmd.com/read/29053606/lung-toxicity-of-condensed-aerosol-from-e-cig-liquids-influence-of-the-flavor-and-the-in-vitro-model-used
#12
Rossella Bengalli, Emanuele Ferri, Massimo Labra, Paride Mantecca
The diffusion of e-cigarette (e-CIG) opens a great scientific and regulatory debate about its safety. The huge number of commercialized devices, e-liquids with almost infinite chemical formulations and the growing market demand for a rapid and efficient toxicity screen system that is able to test all of these references and related aerosols. A consensus on the best protocols for the e-CIG safety assessment is still far to be achieved, since the huge number of variables characterizing these products (e.g., flavoring type and concentration, nicotine concentration, type of the device, including the battery and the atomizer)...
October 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28983782/electronic-cigarettes-their-constituents-and-potential-links-to-asthma
#13
REVIEW
Phillip W Clapp, Ilona Jaspers
PURPOSE OF REVIEW: Vaping is gaining popularity in the USA, particularly among teens and young adults. While e-cigs are commonly represented as safer alternatives to tobacco cigarettes, little is known regarding the health effects of their short- or long-term use, especially in individuals with pre-existing respiratory diseases such as asthma. Flavored e-cig liquids (e-liquids) and e-cig aerosols contain airway irritants and toxicants that have been implicated in the pathogenesis and worsening of lung diseases...
October 5, 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28954048/electronic-cigarette-awareness-use-and-perception-of-harmfulness-in-brazil-findings-from-a-country-that-has-strict-regulatory-requirements
#14
Tânia Maria Cavalcante, André Salem Szklo, Cristina de Abreu Perez, James F Thrasher, Moyses Szklo, Janine Ouimet, Shannon Gravely, Geoffrey T Fong, Liz Maria de Almeida
Given the uncertainties regarding electronic cigarettes' (e-cigs) impact on health, in 2009 Brazil prohibited sales, importation or advertisements of these products until manufacturers are able to show they are safe and/or effective in smoking cessation. This study sought to analyze: (1) awareness of electronic cigarettes, ever-use and recent use; (2) perception of harmfulness of electronic cigarettes when compared with conventional cigarettes; and (3) correlates of awareness and perception of harmfulness. This is a cross-sectional study among Brazilian smokers (≥ 18 years) using the Wave 2 replenishment sample of the Brazilian International Tobacco Control Policy Evaluation Survey...
September 21, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/28861656/an-opportune-and-unique-research-to-evaluate-the-public-health-impact-of-electronic-cigarettes
#15
Ahmad Besaratinia, Stella Tommasi
In response to the growing public health concern regarding the risks or benefits of electronic cigarettes (e-cig) use relative to smoking, the National Institute on Drug Abuse (NIDA) has recently introduced the first standardized- and well- characterized e-cig device to the research community (see, https://www.drugabuse.gov/funding/supplemental-information-nida-e-cig ). E-cig are promoted as safe alternatives to conventional tobacco cigarettes and/or as aides to smoking cessation. E-cig are highly popular among cigarette smokers who are unable/unwilling to quit but are willing to switch to putatively less-harmful tobacco substitutes...
October 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28843083/tobacco-toxicant-exposure-in-cigarette-smokers-who-use-or-do-not-use-other-tobacco-products
#16
Nicole L Nollen, Matthew S Mayo, Lauren Clark, Lisa Sanderson Cox, Samir S Khariwala, Kim Pulvers, Neal L Benowitz, Jasjit S Ahluwalia
BACKGROUND: Non-cigarette other tobacco products (OTP; e.g., cigarillos, little cigars) are typically used in combination with cigarettes, but limited data exists on the tobacco toxicant exposure profiles of dual cigarette-OTP (Cig-OTP) users. This study examined biomarkers of nicotine and carcinogen exposure in cigarette smokers who used or did not use OTP. METHODS: 111 Cig-OTP and 111 cigarette only (Cig Only) users who smoked equivalent cigarettes per day were matched on age (< 40, >=40), race (African American, White), and gender...
October 1, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28815224/a-picture-is-worth-a-thousand-words-electronic-cigarette-content-on-instagram-and-pinterest
#17
Alexander S Lee, Joy L Hart, Clara G Sears, Kandi L Walker, Allison Siu, Courteney Smith
INTRODUCTION: This study examined electronic cigarette (e-cig) content in visual materials posted on the social-media platforms Instagram and Pinterest. Both platforms allow users to upload pictures to the internet and share them globally. Users can search for pictures tagged with specific keywords and phrases. METHODS: Using content analysis, this study identified themes in image postings of e-cigs on social media. During five weeks of data collection, keywords were used to identify pictures related to e-cigs...
July 2017: Tobacco Prevention & Cessation
https://www.readbyqxmd.com/read/28782062/exploratory-analysis-of-marketing-and-non-marketing-e-cigarette-themes-on-twitter
#18
Sifei Han, Ramakanth Kavuluru
Electronic cigarettes (e-cigs) have been gaining popularity and have emerged as a controversial tobacco product since their introduction in 2007 in the U.S. The smoke-free aspect of e-cigs renders them less harmful than conventional cigarettes and is one of the main reasons for their use by people who plan to quit smoking. The US food and drug administration (FDA) has introduced new regulations early May 2016 that went into effect on August 8, 2016. Given this important context, in this paper, we report results of a project to identify current themes in e-cig tweets in terms of semantic interpretations of topics generated with topic modeling...
November 2016: Social Informatics: 8th International Conference, SocInfo 2016, Bellevue, WA, USA, November 11-14, 2016, Proceedings. Part II
https://www.readbyqxmd.com/read/28745768/the-sos-chromotest-applied-for-screening-plant-antigenotoxic-agents-against-ultraviolet-radiation
#19
J L Fuentes, A García Forero, N Quintero Ruiz, C A Prada Medina, N Rey Castellanos, D A Franco Niño, D A Contreras García, Y Córdoba Campo, E E Stashenko
In this work, we investigated the usefulness of the SOS Chromotest for screening plant antigenotoxic agents against ultraviolet radiation (UV). Fifty Colombian plant extracts obtained by supercritical fluid (CO2) extraction, twelve plant extract constituents (apigenin, carvacrol, β-caryophyllene, 1,8-cineole, citral, p-cymene, geraniol, naringenin, pinocembrin, quercetin, squalene, and thymol) and five standard antioxidant and/or photoprotective agents (curcumin, epigallocatechin gallate, resveratrol, α-tocopherol, and Trolox®) were evaluated for their genotoxicity and antigenotoxicity against UV using the SOS Chromotest...
September 13, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28714914/online-vape-shop-customers-who-use-e-cigarettes-report-abstinence-from-smoking-and-improved-quality-of-life-but-a-substantial-minority-still-have-vaping-related-health-concerns
#20
Dinska Van Gucht, Karolien Adriaens, Frank Baeyens
(1) Background: Characteristics and usage patterns of vapers (e-cigarette users) have mainly been studied in web-based convenience samples or in visitors of brick-and-mortar vape shops. We extended this by targeting customers of one particular online vape shop in the Netherlands; (2) Methods: Customers were questioned on their smoking history, current smoking and vaping status, reasons for vaping, perceived harmfulness, and potential health changes due to vaping; (3) Results: Almost everyone (99%, 95% CI 0...
July 17, 2017: International Journal of Environmental Research and Public Health
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