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Tobacco dependence

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https://www.readbyqxmd.com/read/29143193/cigarette-demand-among-smokers-with-elevated-depressive-symptoms-an-experimental-comparison-with-low-depressive-symptoms
#1
Roberto Secades-Villa, Sara Weidberg, Alba González-Roz, Derek D Reed, José R Fernández-Hermida
RATIONALE: Individuals with depression smoke more than smokers without depression. Research has shown that cigarette demand is a useful tool for quantifying tobacco reinforcement and supposes a clinical predictor of treatment outcomes. Despite previous studies examining the relative reinforcing efficacy of nicotine among different populations of smokers, to date, no study has assessed cigarette demand among individuals with elevated depressive symptoms. OBJECTIVE: The aim of this study was to compare cigarette demand among samples of smokers with low and elevated depressive symptoms...
November 15, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/29143133/association-of-dna-repair-genes-polymorphisms-and-mutations-with-increased-risk-of-head-and-neck-cancer-a-review
#2
REVIEW
Agata Dylawerska, Wojciech Barczak, Anna Wegner, Wojciech Golusinski, Wiktoria Maria Suchorska
DNA repair mechanisms allow maintain genomic stability and proper functioning within the cells. Any aberrations may cause an increased risk of many diseases such as cancer. The most crucial risk factors for head and neck squamous cell carcinoma are behavioral factors, predominantly chronic exposure to tobacco, alcohol addiction, and infection with human papillomavirus or Epstein-Barr virus. These agents can induce DNA damage; therefore, cells must activate appropriate mechanisms in order to function correctly...
November 15, 2017: Medical Oncology
https://www.readbyqxmd.com/read/29140450/smoking-cessation-delivery-by-general-practitioners-in-crete-greece
#3
Charis Girvalaki, Sophia Papadakis, Constantine Vardavas, Eleni Petridou, Andrew Pipe, Christos Lionis
Background: Tobacco dependence treatment in clinical settings is of prime public health importance, especially in Greece, a country experiencing one of the highest rates of tobacco use in Europe. Methods: Our study aimed to examine the characteristics of tobacco users and document rates of tobacco treatment delivery in general practice settings in Crete, Greece. A cross-sectional sample of patients (n = 2, 261) was screened for current tobacco use in 25 general practices in Crete, Greece in 2015/16...
November 13, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/29138785/microstructural-metrology-of-tobacco-mosaic-virus-nanorods-during-radial-compression-and-heating
#4
C Riekel, M Burghammer, I Snigirev, M Rosenthal
We determined stress-induced deformations and the thermal stability of nanorod-shaped tobacco mosaic virus (TMV) capsids in coffee-ring structures by X-ray nanodiffraction. The hexagonal capsids lattice transforms under compression in the outer boundary zone of the coffee-ring into a tetragonal lattice. The helical pitch of the nanorods increases by about 2.5% across the outer boundary zone while the lateral distance between nanorods decreases continuously across the whole coffee-ring structure by about 2% due to compressive forces...
November 15, 2017: Soft Matter
https://www.readbyqxmd.com/read/29133466/shine-dalgarno-sequences-play-an-essential-role-in-the-translation-of-plastid-mrnas-in-tobacco
#5
Lars B Scharff, Miriam Ehrnthaler, Marcin Janowski, Liam H Childs, Claudia Hasse, Jürgen Gremmels, Stephanie Ruf, Reimo Zoschke, Ralph Bock
In prokaryotic systems, the translation initiation of many, though not all, mRNAs depends on interaction between a sequence element upstream of the start codon (the Shine-Dalgarno sequence, SD) and a complementary sequence in the 3' end of the 16S ribosomal RNA (anti-Shine-Dalgarno sequence, aSD). Although many chloroplast mRNAs harbor putative SDs in their 5' untranslated regions and the aSD displays strong conservation, the functional relevance of SD-aSD interactions in plastid translation is unclear. Here, by generating transplastomic tobacco (Nicotiana tabacum) mutants with point mutations in the aSD coupled with genome-wide analysis of translation by ribosome profiling, we provide a global picture of SD-dependent translation in plastids...
November 13, 2017: Plant Cell
https://www.readbyqxmd.com/read/29131420/chromatographic-analysis-of-voc-patterns-in-exhaled-breath-from-smokers-and-nonsmokers
#6
Simonetta Capone, Maria Tufariello, Angiola Forleo, Valentina Longo, Lucia Giampietruzzi, Antonio Vincenzo Radogna, Flavio Casino, Pietro Siciliano
Cigarette smoking harms nearly every organ of the body and causes many diseases. The analysis of exhaled breath for exogenous and endogenous Volatile Organic Compounds (VOCs) can provide fundamental information on active smoking and insight into the health damage that smoke is creating. Various exhaled Volatile Organic Compounds (VOCs) have been reported as typical of smoking habit and recent tobacco consumption, but to date, no eligible biomarkers have been identified. Aiming to identify such potential biomarkers, in this pilot study we analysed the chemical patterns of exhaled breath from 26 volunteers divided in groups of nonsmokers and subgroups of smokers sampled at different periods of withdrawal from smoking...
November 13, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29129555/nicotine-delivery-efficiency-of-first-and-second-generation-e-cigarettes-and-its-impact-on-relief-of-craving-during-the-acute-phase-of-use
#7
Tobias Rüther, Dieter Hagedorn, Konstantin Schiela, Thomas Schettgen, Helga Osiander-Fuchs, Wolfgang Schober
Knowledge about the change in blood nicotine concentrations during the first five minutes (acute phase) of e-cigarette vaping is important to determine whether the used product has a dependence potential or may be an efficient nicotine replacement product. To address this issue, we monitored blood nicotine levels during the acute phase in volunteers using disposable cigalikes (CLs) and a tank model (TM) and compared them with blood nicotine levels in subjects using a tobacco cigarette (TC). In parallel, heart rate changes were continually measured and withdrawal symptoms and craving were assessed with the Questionnaire on Smoking Urges before and immediately after the vaping/smoking sessions...
October 28, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/29126755/-cannabis-and-lung-what-we-know-and-everything-we-don-t-know-yet
#8
REVIEW
T Urban, J Hureaux
Cannabis use increased sharply from 2010 to 2014 in France. Cannabis is often consumed with tobacco, although the use of marijuana is developing. Tobacco and cannabis smoke have many common characteristics in terms of irritants, carcinogens and carbon monoxide. They also differentiate by their dependence mechanisms, with nicotine and its receptors for tobacco and tetra-hydro-cannabinol (THC) and its specific receptors for cannabis. Chronic inhalation (700,000 daily users in France) over a long period most likely increases the relative risk of bronchial cancer...
November 7, 2017: Revue de Pneumologie Clinique
https://www.readbyqxmd.com/read/29126169/dose-dependent-effect-of-cotinine-verified-tobacco-smoking-on-serum-immunoglobulin-e-levels-in-korean-adult-males
#9
Jae-June Dong, Jay J Shen, Yong-Jae Lee
Background: Smoking is one of the risk factors to exacerbate allergic diseases, and it may affect serum immunoglobulin E (IgE) levels. However, few studies have relied on an objective biomarker to examine the effect of tobacco smoking on serum IgE levels. Method: A nationwide cross-sectional study was conducted to examine the relationship between urinary cotinine (Ucot) concentrations and IgE levels in 973 males using data from the 2010 Korean National Health and Nutrition Examination Survey (KNHANES)...
November 6, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/29126126/exposure-to-point-of-sale-marketing-of-cigarettes-and-e-cigarettes-as-predictors-of-smoking-cessation-behaviors
#10
Dale S Mantey, Keryn E Pasch, Alexandra Loukas, Cheryl L Perry
Introduction: Cue-reactivity theory suggests smoking-related visual cues such as point-of-sale (POS) marketing (e.g., advertising, product displays) may undermine cessation attempts by causing an increase in nicotine cravings among users. This study examined the relationship between recall of exposure to POS marketing and subsequent cessation behaviors among young adult cigarette smokers. Methods: Participants included 813 18-29 year old (m=21.1, sd=2.70) current cigarette smokers attending 24 Texas colleges...
November 6, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/29126121/the-relationship-between-neighborhood-disorder-and-barriers-to-cessation-in-a-sample-of-impoverished-inner-city-smokers-in-baltimore-maryland-usa
#11
Carl Latkin, Ryan D Kennedy, Melissa Davey-Rothwell, Tuo-Yen Tseng, Lauren Czaplicki, Anirudh Baddela, Catie Edwards, Geetanjali Chander, Meghan Bridgid Moran, Amy Knowlton
Introduction: Economic disparities in rates of smoking have been well documented in many countries. These disparities exist on an individual and geographic or neighborhood level. This cross-sectional study examined the relationship between neighborhood physical and social disorder and barriers to smoking cessation among an impoverished urban sample. Methods: A sample of current smokers were recruited through street outreach, posted advertisements, and word of mouth from impoverished neighborhoods in Baltimore, Maryland, USA for a study of psychosocial factors and smoking behaviors...
November 8, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/29122985/tsnac1-is-a-key-transcription-factor-in-abiotic-stress-resistance-and-growth
#12
Can Liu, Baomei Wang, Zhaoxia Li, Zhenghua Peng, Juren Zhang
NAC proteins constitute one of the largest families of plant-specific transcription factors, and a number of these proteins participate in the regulation of plant development and responses to abiotic stress. T. HALOPHILA STRESS RELATED NAC1 (TsNAC1) cloned from the halophyte Thellungiella halophila is a NAC transcription factor gene, and its overexpression can improve abiotic stress resistance, especially in the salt stress tolerance, in both T. halophila and Arabidopsis and retard the growth of these plants...
November 9, 2017: Plant Physiology
https://www.readbyqxmd.com/read/29120279/substance-use-in-youth-with-borderline-personality-disorder
#13
Franco Scalzo, Carol A Hulbert, Jennifer K Betts, Sue M Cotton, Andrew M Chanen
Co-occurring substance misuse and borderline personality disorder (BPD) in adults is associated with more severe dysfunction and poorer prognosis than BPD alone. However, it is unknown to what extent substance use in youth with BPD is normative for this age group or pathological. This study compared substance use in 117 help-seeking youth (aged 15-25 years) with their first presentation for treatment of BPD, with an epidemiological general population sample and with healthy age- and gender-matched controls...
November 9, 2017: Journal of Personality Disorders
https://www.readbyqxmd.com/read/29109324/potential-predictor-of-tobacco-cessation-among-factory-workers-a-baseline-data-of-worksite-tobacco-cessation-programs-in-the-central-part-of-india
#14
Rahul Gaikwad, Rahul Bhowate, Payal Bajad, Amol R Gadbail, Shailesh Gondivkar, Sachin C Sarode, Gargi S Sarode, Shankargouda Patil
AIM: Our study aimed to evaluate the prevalence of tobacco use among factory workers and identify the predicting factors for quitting tobacco use. MATERIALS AND METHODS: In this cross-sectional study, a total of 640 factory workers were included and divided into the quitter group and who had never quit the tobacco habit in the past. Data were collected by standardized and validated questionnaire pro forma, which comprised the demographic profile, smoking history, and Fagerstrom scale to check the nicotine dependence...
November 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29107238/in-vitro-and-in-vivo-activities-of-eugenol-against-tobacco-black-shank-caused-by-phytophthora-nicotianae
#15
Changliang Jing, Jianyu Gou, Xiaobin Han, Qian Wu, Chengsheng Zhang
Phytophthora nicotianae causes serious black shank disease in tobacco. Syringa oblata essential oil and its main components were evaluated to develop an effective and environmentally friendly biocontrol agent. Eugenol, which exhibited the strongest activity, was intensively investigated in vitro and in vivo. The mycelial growth of P. nicotianae was inhibited by eugenol at a minimum inhibitory concentration of 200μgmL(-1), and inhibition occurred in a dose-dependent manner. Extracellular pH and extracellular conductivity results indicated that eugenol increased membrane permeability...
October 2017: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/29105663/exacerbated-craving-in-the-presence-of-stress-and-drug-cues-in-drug-dependent-patients
#16
Kenzie L Preston, William J Kowalczyk, Karran A Phillips, Michelle L Jobes, Massoud Vahabzadeh, Jia-Ling Lin, Mustapha Mezghanni, David H Epstein
In addiction, risk factors for craving and use include stress and drug-related cues. Stress and cues have additive or more-than-additive effects on drug seeking in laboratory animals, but, surprisingly, seem to compete with one another (ie, exert less-than-additive effects) in human laboratory studies of craving. We sought heretofore elusive evidence that human drug users could show additive (or more-than-additive) effects of stress and cues on craving, using ecological momentary assessment (EMA). Outpatients (N=182) maintained on daily buprenorphine or methadone provided self-reports of stress, craving, mood, and behavior on electronic diaries for up to 16 weeks...
November 6, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29104080/altered-function-but-not-structure-of-the-amygdala-in-nicotine-dependent-individuals
#17
Zhujing Shen, Peiyu Huang, Chao Wang, Wei Qian, Xiao Luo, Xiaojun Guan, Tiantian Qiu, Yihong Yang, Minming Zhang
Tobacco use disorder is frequently comorbid with emotional disorders, each exerting reciprocal influence on the other. As an important hub for emotional processing, amygdala may also play a critical role in tobacco addiction. Therefore, we aimed to investigate the volume and spontaneous activity of the amygdala in nicotine-dependent individuals and their relationships with cigarette use. A total of 84 smokers (aged 22-54 years) and 41 nonsmokers (aged 26-56 years) were enrolled in the present study. 3D-T1 weighted images and resting-state fMRI images were acquired from all participants...
November 2, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29098656/virological-quality-of-irrigation-water-sources-and-pepper-mild-mottle-virus-and-tobacco-mosaic-virus-as-index-of-pathogenic-virus-contamination-level
#18
Sadhana Shrestha, Shankar Shrestha, Junko Shindo, Jeevan B Sherchand, Eiji Haramoto
Irrigation water is a doorway for the pathogen contamination of fresh produce. We quantified pathogenic viruses [human adenoviruses, noroviruses of genogroups I and II, group A rotaviruses, Aichi virus 1 (AiV-1), enteroviruses (EnVs), and salivirus (SaliV)] and examined potential index viruses [JC and BK polyomaviruses (JCPyVs and BKPyVs), pepper mild mottle virus (PMMoV), and tobacco mosaic virus (TMV)] in irrigation water sources in the Kathmandu Valley, Nepal. River, sewage, wastewater treatment plant (WWTP) effluent, pond, canal, and groundwater samples were collected in September 2014, and in April and August 2015...
November 2, 2017: Food and Environmental Virology
https://www.readbyqxmd.com/read/29096890/breast-cancer-epidemiology-prevention-and-screening
#19
Stella Winters, Charmaine Martin, Daniel Murphy, Navkiran K Shokar
Globally, breast cancer is both the most commonly occurring cancer and the commonest cause of cancer death among women. Available data suggest that incidence and mortality in high-resource countries has been declining whereas incidence and mortality in low-resource countries has been increasing. This pattern is likely to be due to changing risk factor profiles and differences in access to breast cancer early detection and treatment. Risk factors for breast cancer include increasing age, race, menarche history, breast characteristics, reproductive patterns, hormone use, alcohol use, tobacco use, diet, physical activity, and body habitus...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/29093145/dental-dental-hygiene-and-advanced-dental-students-use-knowledge-and-beliefs-regarding-tobacco-products
#20
Jenni A Shearston, Krina Shah, Eric Cheng, Rizvan Moosvi, Su Hyun Park, Naiya Patel, Andrew I Spielman, Michael L Weitzman
Using cigarettes and alternative tobacco products (ATPs) is associated with negative oral health outcomes, and dental health professionals are poised to help patients quit. The aim of this study was to determine dental, dental hygiene, and advanced dental students' use, knowledge, and beliefs about cigarettes and ATPs, including perceptions about their education in tobacco dependence treatment and counseling experience. All 1,783 students enrolled in the dental, dental hygiene, and postdoctoral dental programs at the New York University College of Dentistry were invited to participate in the survey in 2016...
November 2017: Journal of Dental Education
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