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https://www.readbyqxmd.com/read/28454347/effect-of-cigarette-smoke-exposure-and-mutant-kras-overexpression-on-pancreatic-cell-proliferation
#1
Howard P Glauert, R Scott Elliott, Sung Gu Han, Mark Athey, Eun Y Lee, C Gary Gairola
Pancreatic cancer is the fourth leading cause of cancer-associated mortality. The major risk factor for pancreatic cancer is cigarette smoking. Kras mutations are commonly observed in human pancreatic cancers. The present study examined the hypothesis that exposure to cigarette smoke and overexpression of a mutant Kras gene in the pancreas affects pancreatic cell proliferation in mice. Mice overexpressing the mutant Kras gene (KRas(G12D)) in the pancreas as well as wild-type mice were exposed to environmental tobacco smoke for 2 weeks...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454011/nicotine-and-e-cigarettes-rethinking-addiction-in-the-context-of-reduced-harm
#2
Sharon Cox, Sarah Jakes
No abstract text is available yet for this article.
April 25, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28453522/potential-biological-pathways-linking-type-d-personality-and-poor-health-a-cross-sectional-investigation
#3
Vera K Jandackova, Julian Koenig, Marc N Jarczok, Joachim E Fischer, Julian F Thayer
BACKGROUND: Type-D personality, defined as a combination of high negative affect and high social isolation, has been associated with poor health outcomes. However, pathways underlying this association are largely unknown. We investigated the relationship between Type-D personality and several biological and behavioral pathways including the autonomic nervous system, the immune system, glucose regulation and sleep in a large, apparently healthy sample. METHODS: Data from a total of 646 respondents (age 41...
2017: PloS One
https://www.readbyqxmd.com/read/28449191/perceived-harms-and-benefits-of-tobacco-marijuana-and-electronic-vaporizers-among-young-adults-in-colorado-implications-for-health-education-and-research
#4
Lucy Popova, Emily Anne McDonald, Sohrab Sidhu, Rachel Barry, Tracey A Richers Maruyama, Nicolas M Sheon, Pamela M Ling
AIMS: To evaluate how young adults perceive and compare harms and benefits of marijuana and tobacco products in the context of a legal marijuana market in Colorado. DESIGN: Semi-structured qualitative interviews. SETTING: Denver, Colorado, USA. PARTICIPANTS: Thirty-two young adults (18-26 years old) who used tobacco/marijuana/vaporizers. Semi-structured interviews addressed perceived harms and benefits of various tobacco and marijuana products and personal experiences with these products...
April 27, 2017: Addiction
https://www.readbyqxmd.com/read/28448881/social-capital-and-cigarette-smoking-new-empirics-featuring-the-norwegian-hunt-data
#5
M Kamrul Islam, Sherman Folland, Oddvar M Kaarbøe
Using a rich Norwegian longitudinal data set, this study explores the effects of different social capital variables on the probability of cigarette smoking. There are four social capital variables available in two waves of our data set. Our results based on probit (and OLS) analyses (with municipality fixed-effects) show that the likelihood of smoking participation is negatively and significantly associated with social capital attributes, namely, community trust (-0.017), participation in organizational activities (-0...
April 14, 2017: Economics and Human Biology
https://www.readbyqxmd.com/read/28448535/alpha-1-antitrypsin-supplementation-improves-alveolar-macrophages-efferocytosis-and-phagocytosis-following-cigarette-smoke-exposure
#6
Karina A Serban, Daniela N Petrusca, Andrew Mikosz, Christophe Poirier, Angelia D Lockett, Lauren Saint, Matthew J Justice, Homer L Twigg, Michael A Campos, Irina Petrache
Cigarette smoking (CS), the main risk factor for COPD (chronic obstructive pulmonary disease) in developed countries, decreases alveolar macrophages (AM) clearance of both apoptotic cells and bacterial pathogens. This global deficit of AM engulfment may explain why active smokers have worse outcomes of COPD exacerbations, episodes characterized by airway infection and inflammation that carry high morbidity and healthcare cost. When administered as intravenous supplementation, the acute phase-reactant alpha-1 antitrypsin (A1AT) reduces the severity of COPD exacerbations in A1AT deficient (AATD) individuals and of bacterial pneumonia in murine models, but the effect of A1AT on AM scavenging functions has not been reported...
2017: PloS One
https://www.readbyqxmd.com/read/28448350/newscap-dripping-is-becoming-popular-with-e-cigarette-users
#7
(no author information available yet)
No abstract text is available yet for this article.
May 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28447619/little-cigars-are-more-toxic-than-cigarettes-and-uniquely-change-the-airway-gene-and-protein-expression
#8
Arunava Ghosh, Sabri H Abdelwahab, Steven L Reeber, Boris Reidel, Abigail J Marklew, Andrew J Garrison, Shernita Lee, Hong Dang, Amy H Herring, Gary L Glish, Mehmet Kesimer, Robert Tarran
Little cigars (LCs) are regulated differently than cigarettes, allowing them to be potentially targeted at youth/young adults. We exposed human bronchial epithelial cultures (HBECs) to air or whole tobacco smoke from cigarettes vs. LCs. Chronic smoke exposure increased the number of dead cells, lactate dehydrogenase release, and interleukin-8 (IL-8) secretion and decreased apical cilia, cystic fibrosis transmembrane conductance regulator (CFTR) protein levels, and transepithelial resistance. These adverse effects were significantly greater in LC-exposed HBECs than cigarette exposed cultures...
April 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28447363/tobacco-packaging-design-for-reducing-tobacco-use
#9
REVIEW
Ann McNeill, Shannon Gravely, Sara C Hitchman, Linda Bauld, David Hammond, Jamie Hartmann-Boyce
BACKGROUND: Tobacco use is the largest single preventable cause of death and disease worldwide. Standardised tobacco packaging is an intervention intended to reduce the promotional appeal of packs and can be defined as packaging with a uniform colour (and in some cases shape and size) with no logos or branding, apart from health warnings and other government-mandated information, and the brand name in a prescribed uniform font, colour and size. Australia was the first country to implement standardised tobacco packaging between October and December 2012, France implemented standardised tobacco packaging on 1 January 2017 and several other countries are implementing, or intending to implement, standardised tobacco packaging...
April 27, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28446996/barrett-s-esophagus-best-practices-for-treatment-and-post-treatment-surveillance
#10
REVIEW
Nabil M Mansour, Hashem B El-Serag, Sharmila Anandasabapathy
Barrett's esophagus (BE) is a premalignant condition that increases the risk of esophageal adenocarcinoma (EAC). Significantly more common in the Western world, risk factors include increased age, male sex, white race, gastro-esophageal reflux disease (GERD), central obesity, and cigarette smoking. The rates of progression to cancer depend on the grade of Barrett's dysplasia. Screening for BE is recommended in patients with GERD and additional risk factors. Endoscopic surveillance of patients with BE likely improves overall outcomes...
March 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28444993/comparative-tumor-promotion-assessment-of-e-cigarette-and-cigarettes-using-the-in-vitro-bhas-42-cell-transformation-assay
#11
Damien Breheny, Oluwatobiloba Oke, Kamala Pant, Marianna Gaça
In vitro cell transformation assays (CTA) are used to assess the carcinogenic potential of chemicals and complex mixtures and can detect nongenotoxic as well as genotoxic carcinogens. The Bhas 42 CTA has been developed with both initiation and promotion protocols to distinguish between these two carcinogen classes. Cigarette smoke is known to be carcinogenic and is positive in in vitro genotoxicity assays. Cigarette smoke also contains nongenotoxic carcinogens and is a tumour promoter and cocarcinogen in vivo...
May 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/28444627/level-of-cigarette-consumption-and-duration-of-smoking-abstinence-during-failed-quit-attempts-among-long-term-daily-smokers-the-role-of-race-ethnicity-and-cessation-aids
#12
Julia N Soulakova, Lisa J Crockett
The goal of this study was to determine whether race/ethnicity and use of smoking cessation aids are associated with the duration of the last serious quit attempt and reductions in cigarette consumption among long-term daily smokers who tried, and failed, to quit smoking during the preceding year. Data came from the 2010-2011 Tobacco Use Supplement survey conducted in the USA, and analyses included 6672 reports of long-term daily smokers (i.e., smokers who smoked daily for 1 year or longer) who made at least one serious quit attempt in the past 12 months...
April 25, 2017: Journal of Racial and Ethnic Health Disparities
https://www.readbyqxmd.com/read/28444309/frequency-of-youth-e-cigarette-tobacco-and-poly-use-in-the-united-states-2015-update-to-villanti-et-al-frequency-of-youth-e-cigarette-and-tobacco-use-patterns-in-the-united-states-measurement-precision-is-critical-to-inform-public-health
#13
Lauren K Collins, Andrea C Villanti, Jennifer L Pearson, Allison M Glasser, Amanda L Johnson, Raymond S Niaura, David B Abrams
No abstract text is available yet for this article.
April 22, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28444233/neighborhood-variation-in-the-price-of-cheap-tobacco-products-in-california-results-from-healthy-stores-for-a-healthy-community
#14
Lisa Henriksen, Elizabeth Andersen-Rodgers, Xueying Zhang, April Roeseler, Dennis L Sun, Trent O Johnson, Nina C Schleicher
Background.: Retail marketing surveillance research highlights concerns about lower-priced cigarettes in neighborhoods with a higher proportion of racial/ethnic minorities, but focuses almost exclusively on premium brands. To remedy this gap in the literature, the current study examines neighborhood variation in prices for the cheapest cigarettes and a popular brand of cigarillos in a large statewide sample of licensed tobacco retailers in a low-tax state. Methods.: All 61 local health departments in California trained data collectors to conduct observations in a census of eligible licensed tobacco retailers in randomly selected zip codes (n=7,393 stores, completion rate=91%)...
April 22, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28444188/gas-chromatography-mass-spectrometry-method-to-quantify-benzo-a-pyrene-in-tobacco-products
#15
Karl A Wagner, Chorng B Huang, Matt S Melvin, Regina Ballentine, Naren K Meruva, Jason W Flora
The USA Food and Drug Administration (FDA) established benzo[a]pyrene (B[a]P) as a harmful and potentially harmful constituent (HPHC) found in tobacco products. Tobacco manufacturers are required to report HPHC quantities to the FDA; however, there is currently no standardized method for determination of B[a]P in smokeless tobacco products (STPs). This work details a sensitive, selective and rapid method for the determination of B[a]P in STPs, cigarette filler and tobacco. Tobacco is extracted using methanol followed by solid-phase extraction and concentration prior to analysis by gas chromatography/mass spectrometry in the selected ion monitoring mode...
April 21, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28443806/-influence-of-smoking-on-pharmacokinetics-of-medication
#16
D M Burger
- In a previous issue, a case report was presented in the Dutch Journal of Medicine (NTvG) of a patient who had variable clozapine levels after switching from regular cigarettes to an e-cigarette and vice versa.- Besides clozapine there are a number of other agents with a narrow therapeutic range where pharmacokinetics can be influenced by smoking.- This review describes the mechanisms of smoking-induced influence on the pharmacokinetics of medicines, and guidance will be provided regarding which medicines must be monitored more closely when patients change their smoking habits...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28443340/e-cigs-are-they-cool-talking-to-teens-about-e-cigarettes
#17
Vania Modesto-Lowe, Camille Alvarado
Electronic cigarettes, or e-cigarettes as they are commonly called, have gained wide acceptance among adolescents, especially those with sweet flavors such as bubble gum and cheesecake. Although health effects of e-cigarettes have not been well characterized, their use increases a teen's exposure to nicotine and may serve as a gateway to traditional cigarettes. This article outlines the basics of e-cigarettes and potential health hazards, followed by selected literature on teens' perceptions of e-cigarettes, as well as motivational interviewing strategies that can be used in talking to teens about using electronic cigarettes...
April 1, 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28443200/epidemiology-of-ovarian-cancer-a-review
#18
Brett M Reid, Jennifer B Permuth, Thomas A Sellers
Ovarian cancer (OC) is the seventh most commonly diagnosed cancer among women in the world and the tenth most common in China. Epithelial OC is the most predominant pathologic subtype, with five major histotypes that differ in origination, pathogenesis, molecular alterations, risk factors, and prognosis. Genetic susceptibility is manifested by rare inherited mutations with high to moderate penetrance. Genome-wide association studies have additionally identified 29 common susceptibility alleles for OC, including 14 subtype-specific alleles...
February 2017: Cancer Biology & Medicine
https://www.readbyqxmd.com/read/28442453/clickotine-a-personalized-smartphone-app-for-smoking-cessation-initial-evaluation
#19
Brian M Iacoviello, Joshua R Steinerman, David B Klein, Theodore L Silver, Adam G Berger, Sean X Luo, Nicholas J Schork
BACKGROUND: Tobacco smoking is the leading cause of preventable death in the United States, and the annual economic burden attributable to smoking exceeds US $300 billion. Obstacles to smoking cessation include limited access and adherence to effective cessation interventions. Technology can help overcome these obstacles; many smartphone apps have been developed to aid smoking cessation, but few that conform to the US clinical practice guideline (USCPG) have been rigorously tested and reported in the literature...
April 25, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28442444/hydrogen-sulfide-ameliorates-prenatal-cigarette-smoke-exposure-induced-impairment-of-respiratory-responses-to-hypercapnia-in-neonatal-rats
#20
Senfeng Zhang, Fang Lei, Fusheng Zhao, Xiang Yan, Wen Wang, Yu Zheng
The present study was designed to investigate whether H2S could improve the respiratory responses to hypercapnia blunted by prenatal CSE in neonatal rats in vivo. Respiratory activities were recorded with head-out body plethysmography. The results showed that during baseline, respiratory frequency (FR), tidal volume (VT) and minute ventilation (VE) were similar among tested groups; frequency of spontaneous apnea (FSA), not post-sigh apnea (FPA), was significantly elevated by prenatal CSE. During hypercapnia, the increases in FR and VE were significantly reduced, but VT was not markedly different, in CSE group; both FSA and FPA were decreased, although FSA remained higher in CSE group...
April 22, 2017: Respiratory Physiology & Neurobiology
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