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https://www.readbyqxmd.com/read/29342418/functional-characterization-of-9-cyp2a13-allelic-variants-by-assessment-of-nicotine-c-oxidation-and-coumarin-7-hydroxylation
#1
Masaki Kumondai, Hiroki Hosono, Masamitsu Maekawa, Hiroaki Yamaguchi, Nariyasu Mano, Akifumi Oda, Noriyasu Hirasawa, Masahiro Hiratsuka
Cytochrome P450 2A13 (CYP2A13) is responsible for the metabolism of chemical compounds such as nicotine, coumarin, and tobacco-specific nitrosamine. Several of these compounds have been recognized as procarcinogens activated by CYP2A13. We recently showed that CYP2A13*2 contributes to inter-individual variations observed in bladder cancer susceptibility because CYP2A13*2 might cause a decrease in enzymatic activity. Other CYP2A13 allelic variants may also affect cancer susceptibility. In this study, we performed an in vitro analysis of the wild-type enzyme (CYP2A13...
November 22, 2017: Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/29342304/introduction-of-standardised-tobacco-packaging-during-a-12-month-transition-period-findings-from-small-retailers-in-the-united-kingdom
#2
Nathan Critchlow, Martine Stead, Crawford Moodie, Douglas Eadie, Anne Marie MacKintosh
Introduction: Factory-made cigarettes (FMC) and roll-your-own (RYO) tobacco have had to be produced in standardised packaging since 20th May 2016 in the United Kingdom, with a minimum pack size of 20 sticks for FMC and 30 grams for RYO. Manufacturers and retailers were given a 12-month transition period. Methods: An observational study was conducted using monthly Electronic Point of Sale data from 500 small retailers in England, Scotland, and Wales, between May 2016 and May 2017...
January 12, 2018: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/29341488/gene-gene-interaction-between-msx1-and-tp63-in-asian-case-parent-trios-with-nonsyndromic-cleft-lip-with-or-without-cleft-palate
#3
Dongjing Liu, Holger Schwender, Mengying Wang, Hong Wang, Ping Wang, Hongping Zhu, Zhibo Zhou, Jing Li, Tao Wu, Terri H Beaty
BACKGROUND: Small ubiquitin-like modification, also known as sumoylation, is a crucial post-translational regulatory mechanisms involved in development of the lip and palate. Recent studies reported two sumoylation target genes, MSX1 and TP63, to have achieved genome-wide level significance in tests of association with nonsyndromic clefts. Here, we performed a candidate gene analysis considering gene-gene and gene-environment interaction for SUMO1, MSX1, and TP63 to further explore the etiology of nonsyndromic cleft lip with or without cleft palate (NSCL/P)...
January 17, 2018: Birth Defects Research
https://www.readbyqxmd.com/read/29340115/hypermutation-and-microsatellite-instability-in-gastrointestinal-cancers
#4
REVIEW
Kizuki Yuza, Masayuki Nagahashi, Satoshi Watanabe, Kazuaki Takabe, Toshifumi Wakai
Recent progress in cancer genome analysis using next-generation sequencing has revealed a high mutation burden in some tumors. The particularly high rate of somatic mutation in these tumors correlates with the generation of neo-antigens capable of eliciting an immune response. Identification of hypermutated tumors is therefore clinically valuable for selecting patients suitable for immunotherapy treatment. There are several known causes of hypermutation in tumors, such as ultraviolet light in melanoma, tobacco smoke in lung cancer, and excessive APOBEC (apolipoprotein B mRNA editing enzyme, catalytic polypeptide-like) activity in breast and gastric cancer...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29338581/perceived-discrimination-as-a-risk-factor-for-use-of-emerging-tobacco-products-more-similarities-than-differences-across-demographic-groups-and-attributions-for-discrimination
#5
Jennifer B Unger
BACKGROUND: Perceived discrimination has been associated with cigarette smoking and other substance use among members of disadvantaged minority groups. However, most studies have focused on a single minority group, have not considered the individual's attribution for the discrimination, and have not considered emerging tobacco products. OBJECTIVE: This study examined the associations between perceived discrimination and use of six tobacco products (cigarettes, e-cigarettes, cigars, pipe tobacco, hookah, and smokeless tobacco) in a diverse sample of 1,068 adults in the United States...
January 17, 2018: Substance Use & Misuse
https://www.readbyqxmd.com/read/29338430/state-level-point-of-sale-tobacco-news-coverage-and-policy-progression-over-a-2-year-period
#6
Allison E Myers, Brian G Southwell, Kurt M Ribisl, Sarah Moreland-Russell, J Michael Bowling, Leslie A Lytle
BACKGROUND: Mass media content may play an important role in policy change. However, the empirical relationship between media advocacy efforts and tobacco control policy success has rarely been studied. We examined the extent to which newspaper content characteristics (volume, slant, frame, source, use of evidence, and degree of localization) that have been identified as important in past descriptive studies were associated with policy progression over a 2-year period in the context of point-of-sale (POS) tobacco control...
January 1, 2018: Health Promotion Practice
https://www.readbyqxmd.com/read/29338155/association-between-caregiver-exposure-to-toxics-during-pregnancy-and-childhood-onset-asthma-a-case-control-study
#7
Souheil Hallit, Chantal Raherison, Mirna Waked, Pascale Salameh
The aim of this study was to evaluate the associations between caregiver-reported use of medications, alcohol, cigarette and/or waterpipe (WP), and exposure to pesticides/detergents during pregnancy with childhood-onset asthma. The study design consisted of a case-control study, conducted between December 2015 and April 2016, recruited 1503 children, aged between 3-16 years old. A questionnaire assessed the sociodemographic characteristics (age, gender, education level of both parents), the family history of asthma, and other known risk factors of asthma (heating system at home, child history of recurrent otitis, humidity in the house, child went to a daycare, smoking and drinking alcohol during pregnancy, exposure to pesticides and detergents)...
December 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29336931/impact-of-crack-cocaine-use-on-the-occurrence-of-oral-lesions-and-micronuclei
#8
R P Antoniazzi, F B Lago, L C Jardim, M R Sagrillo, K L Ferrazzo, C A Feldens
The aim of this study was to investigate the occurrence of oral lesions and micronuclei in crack cocaine users. A cross-sectional study was conducted involving 106 crack users and 106 non-users matched for age, sex, and tobacco use. Socio-demographic characteristics, the consumption of psychoactive substances, and the occurrence of fundamental lesions were investigated. Cellular changes in the oral mucosa (karyolysis, karyorrhexis, 'broken egg' events, and micronuclei) were determined by exfoliative cytology for 54 participants in each group...
January 11, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29336657/what-factors-are-associated-with-electronic-cigarette-shisha-tobacco-and-conventional-cigarette-use-findings-from-a-cross-sectional-survey-of-australian-adolescents
#9
Tahlia Williams, Victoria White
BACKGROUND: Adolescents' use of electronic cigarettes and shisha-tobacco increased in several countries during the 2000s, including in the United States, United Kingdom and Canada. Few studies have examined the factors associated with exclusive e-cigarette or shisha-tobacco use and whether adolescents using these substances exclusively differ from those using traditional cigarettes. OBJECTIVES: To examine the socio-demographic and behavioural correlates of exclusive e-cigarette and exclusive shisha-tobacco use to those found for users of tobacco cigarettes and multiple nicotine products in Australian adolescents...
January 16, 2018: Substance Use & Misuse
https://www.readbyqxmd.com/read/29336126/effects-of-smoking-on-eustachian-tube-and-hearing
#10
Matteo Pezzoli, Denise Lofaro, Alessandro Oliva, Monica Orione, Daniela Cupi, Andrea Albera, Guido Bongioannini, Roberto Albera
OBJECTIVE: The purpose of this study was to evaluate the effect of tobacco use on the Eustachian tube and inner ear function. STUDY DESIGN: Case-control study. SUBJECTS AND SETTINGS: Thirty-one nonsmoking volunteers and 34 smoking subjects recruited in an University Hospital, submitted to an audiological evaluation including pure tone audiometry, basal tympanogram, stapedial reflexes analysis, and nine-step eustachian tube (ET) function test...
December 1, 2017: International Tinnitus Journal
https://www.readbyqxmd.com/read/29334004/examining-residence-status-as-a-risk-factor-for-health-risk-behaviors-among-college-students
#11
Angelo M DiBello, Madeline B Benz, Mary Beth Miller, Jennifer E Merrill, Kate B Carey
OBJECTIVE: The current study aimed to evaluate college student residence as a unique risk factor for a range of negative health behaviors. PARTICIPANTS: We examined data from 63,555 students (66% female) from 157 campuses who completed the National College Health Assessment Survey in Spring 2011. METHODS: Participants answered questions about the frequency of recent use of alcohol, tobacco, marijuana, and illicit drugs as well as sexual risk behavior in the last 30 days...
January 15, 2018: Journal of American College Health: J of ACH
https://www.readbyqxmd.com/read/29333890/cigarette-smoking-and-quit-attempts-among-latinos-in-substance-use-disorder-treatment
#12
Anna Pagano, Noah Gubner, Thao Le, Joseph Guydish
BACKGROUND: Differences in tobacco use behaviors have been identified between Latinos and non-Latino whites in the general US population. Little is known about cigarette smoking and quitting behaviors of Latinos in treatment for substance use disorders (SUDs), who represent two major tobacco-vulnerable groups. OBJECTIVES: To compare, in a national sample of persons enrolled in SUD treatment, demographic, drug use, and smoking and quitting prevalence and behaviors between Latinos and non-Latino whites...
January 15, 2018: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/29333692/measuring-spatial-and-temporal-trends-of-nicotine-and-alcohol-consumption-in-australia-using-wastewater-based-epidemiology
#13
Foon Yin Lai, Coral Gartner, Wayne Hall, Steve Carter, Jake O'Brien, Benjamin J Tscharke, Frederic Been, Cobus Gerber, Jason White, Phong Thai, Raimondo Bruno, Jeremy Prichard, K Paul Kirkbride, Jochen F Mueller
BACKGROUND AND AIMS: Tobacco and alcohol consumption remain priority public health issues worldwide. As participation in population-based surveys has fallen, it is increasingly challenging to estimate accurately the prevalence of alcohol and tobacco use. Wastewater-based epidemiology (WBE) is an alternative approach for estimating substance use at the population level that does not rely on survey participation. This study examined spatio-temporal patterns in nicotine (a proxy for tobacco) and alcohol consumption in the Australian population via WBE...
January 14, 2018: Addiction
https://www.readbyqxmd.com/read/29333504/community-based-physical-activity-as-adjunctive-smoking-cessation-treatment-rationale-design-and-baseline-data-for-the-lifestyle-enhancement-program-leap-randomized-controlled-trial
#14
Mark W Vander Weg, Mace Coday, Michelle B Stockton, Barbara McClanahan, George Relyea, Mary C Read, Nancy Wilson, Stephanie Connelly, Phyllis Richey, Karen C Johnson, Kenneth D Ward
Despite advances in behavioral and pharmacological treatment for tobacco use and dependence, quit rates remain suboptimal. Increasing physical activity has shown some promise as a strategy for improving cessation outcomes. However, initial efficacy studies focused on intensive, highly structured exercise programs that may not be applicable to the general population of smokers. We describe the rationale and study design and report baseline participant characteristics from the Lifestyle Enhancement Program (LEAP), a two-group, randomized controlled trial...
March 2018: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/29332758/prevalence-of-physical-activity-among-adolescents-in-southern-brazil
#15
Tiago Rodrigues de Lima, Diego Augusto Santos Silva
OBJETIVE: The aim of this study was to estimate the prevalence of low physical activity levels and to identify related factors (sociodemographic, lifestyle and body weight status) in adolescents. METHODS: The study included 1103 students aged 14-19 years from city of São José/SC, Brazil. Physical activity was assessed using a questionnaire that classified adolescents into those who meet recommendations and those who do not meet recommendations. Independent variables were gender, age, monthly household income, maternal education, balanced diet, number of physical education classes, sleep/day, tobacco use, excessive alcohol use, screen time and weight status...
January 2018: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29332112/evaluation-of-effectiveness-of-peer-education-on-smoking-behavior-among-high-school-students
#16
Nurcan Bilgiç, Türkan Günay
To evaluate the effectiveness of peer education on changing the smoking behavior of high schoolage children's.  Methods: In this interventional study; transtheoretical model, which is one of the cognitive-behavioral models was used for application of the peer education. Study was conducted in Izmir during 2011-2012 education period and included 338 students from 2 high schools The independent variable of the study is peer training.  Descriptive variables for a student are age, gender, tendecy of friends to smoke inside and outside the school,  the age they have first experienced the habit,  reasons for nicotine consumption,  levels of addiction,  chatting about smoking and related harms...
January 2018: Saudi Medical Journal
https://www.readbyqxmd.com/read/29332007/impacts-of-canada-s-minimum-age-for-tobacco-sales-mats-laws-on-youth-smoking-behaviour-2000-2014
#17
Russell Clarence Callaghan, Marcos Sanches, Jodi Gatley, James K Cunningham, Michael Oliver Chaiton, Robert Schwartz, Susan Bondy, Claire Benny
BACKGROUND: Recently, the US Institute of Medicine has proposed that raising the minimum age for tobacco purchasing/sales to 21 years would likely lead to reductions in smoking behavior among young people. Surprisingly few studies, however, have assessed the potential impacts of minimum-age tobacco restrictions on youth smoking. OBJECTIVE: To estimate the impacts of Canadian minimum age for tobacco sales (MATS) laws on youth smoking behaviour. DESIGN: A regression-discontinuity design, using seven merged cycles of the Canadian Community Health Survey, 2000-2014...
January 13, 2018: Tobacco Control
https://www.readbyqxmd.com/read/29332005/impact-of-a-negative-emotional-antitobacco-mass-media-campaign-on-french-smokers-a-longitudinal-study
#18
Romain Guignard, Karine Gallopel-Morvan, Ute Mons, Karin Hummel, Viêt Nguyen-Thanh
BACKGROUND: Mass media campaigns to encourage smoking cessation have been shown to be effective in a context of comprehensive tobacco control programme. The effectiveness of antismoking ads that evoke negative emotions remains unclear, in particular in countries with high smoking prevalence and among smokers with low perceived susceptibility, low self-efficacy or who are not users of smoking cessation services. OBJECTIVE: To evaluate short-term and long-term effects of a 1-month French national highly emotional media campaign, with a focus on these specific targets...
January 13, 2018: Tobacco Control
https://www.readbyqxmd.com/read/29332004/host-agent-vector-environment-measures-for-electronic-cigarette-research-used-in-nih-grants
#19
Mary L Garcia-Cazarin, Rachel J Mandal, Rachel Grana, Kay L Wanke, Helen I Meissner
OBJECTIVE: The purpose of this study is to describe the focus and comprehensiveness of domains measured in e-cigarette research. METHODS: A portfolio analysis of National Institutes of Health grants focusing on e-cigarette research and funded between the fiscal years 2007 and 2015 was conducted. Grant proposals were retrieved using a government database and coded using the Host-Agent-Vector-Environment (HAVE) model as a framework to characterise the measures proposed...
January 13, 2018: Tobacco Control
https://www.readbyqxmd.com/read/29331698/exploring-metabolic-factors-and-health-behaviors-in-relation-to-suicide-attempts-a-case-control-study
#20
Stefan Perera, Rebecca B Eisen, Meha Bhatt, Brittany B Dennis, Monica Bawor, Wala El-Sheikh, Jane DeJesus, Sumathy Rangarajan, Heather Sholer, Elisabeth Iordan, Pam Mackie, Shofiqul Islam, Mahshid Dehghan, Jennifer Brasch, David Meyre, Russell de Souza, Lehana Thabane, Zainab Samaan
BACKGROUND: Suicide attempts are a serious public health concern with devastating global impact, thereby necessitating the development of an adequate prevention strategy. Few known risk factors of suicide attempts are directly modifiable. This study sought to investigate potential associations between health behaviors and suicide attempts, identifying novel opportunities for clinicians to help prevent suicidal behavior. METHODS: A case-control study was conducted to compare body weight, serum total cholesterol, physical activity, tobacco use, and dietary food groups among adults who had made a suicide attempt (n = 84) to psychiatric inpatients (n = 104) and community controls (n = 93) without history of suicide attempt...
January 2, 2018: Journal of Affective Disorders
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