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https://www.readbyqxmd.com/read/28346645/facial-trauma-caused-by-electronic-cigarette-explosion
#1
Brian Vaught, Joseph Spellman, Anil Shah, Alexander Stewart, David Mullin
Electronic cigarettes are increasingly popular as a supposed safer alternative to tobacco cigarettes or a smoking cessation tool. Research and debate have focused primarily on possible adverse effects caused by the inhaled aerosol produced by electronic cigarettes and on smoking cessation efficacy. Few reports in the medical literature describe injuries secondary to device malfunction. We present a case of electronic cigarette explosion, with a projectile fracturing the patient's right naso-orbital-ethmoid complex and anterior and posterior frontal sinus tables, with frontal sinus outflow tract involvement...
March 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28346455/collective-helicity-switching-of-a-dna-coat-assembly
#2
Yongju Kim, Huichang Li, Ying He, Xi Chen, Xiaoteng Ma, Myongsoo Lee
Hierarchical assemblies of biomolecular subunits can carry out versatile tasks at the cellular level with remarkable spatial and temporal precision. As an example, the collective motion and mutual cooperation between complex protein machines mediate essential functions for life, such as replication, synthesis, degradation, repair and transport. Nucleic acid molecules are far less dynamic than proteins and need to bind to specific proteins to form hierarchical structures. The simplest example of these nucleic acid-based structures is provided by a rod-shaped tobacco mosaic virus, which consists of genetic material surrounded by coat proteins...
March 27, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/28346036/assessing-the-relationship-between-mental-distress-and-tobacco-use-in-post-katrina-and-rita-louisiana
#3
Snigdha Mukherjee, Melanie Canterberry, Jennifer B Yore, Edward Cannon Ledford, Thomas W Carton
BACKGROUND: The relationship between mental health status and smoking is complicated and often confounded by bi-directionality, yet most research on this relationship assumes exogeneity. OBJECTIVES: The goal of this article is to implement an instrumental variable approach to (1) test the exogeneity assumption and (2) report on the association between mental health status and smoking post-disaster. METHODS: This analysis utilizes the 2006 and 2007 Louisiana Behavioral Risk Factor Surveillance Survey to examine the link between mental distress and smoking in areas affected by Hurricanes Katrina and Rita...
March 27, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28345874/delivery-of-pesticides-to-plant-parasitic-nematodes-using-tobacco-mild-green-mosaic-virus-as-a-nanocarrier
#4
Paul L Chariou, Nicole F Steinmetz
Plant parasitic nematodes are a major burden to the global agricultural industry, causing a $157 billion loss each year in crop production worldwide. Effective treatment requires large doses of nematicides to be applied, putting the environment and human health at risk. Challenges are to treat nematodes that are located deep within the soil, feeding on the roots of plants. To attack the problem at its roots, we propose the use of tobacco mild green mosaic virus (TMGMV), an EPA-approved herbicide as a carrier to deliver nematicides...
March 27, 2017: ACS Nano
https://www.readbyqxmd.com/read/28345846/compliance-with-tobacco-promotion-and-sale-laws-in-school-neighbourhoods-in-india
#5
Aswini Y Balappanavar, Vikrant Mohanty, Abrar Hussain
Objective: Regulation of sale of tobacco has given sufficient attention in India and little information exists about the impact of bans near schools. Our study aim was to check the levels of tobacco promotion, advertising and sales in school neighborhoods’ of Central Delhi. Methods: Using multistage random sampling 15 schools were selected in Central Delhi. Areas 100 meters around each were mapped using a map tool and screened using a self designed questionnaire consisting of 26 questions, both closed and open ended, to determine the details of outlets, sales of tobacco and tobacco products, advertising, promotions, school roles, and children seeking tobacco...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28345836/assessing-the-effect-of-waterpipe-smoking-on-cancer-outcome-a-systematic-review-of-current-evidence
#6
Kamran Habib Awan, Kamran Siddiqi, Shankargouda Patil, Quratul Ann Hussain
Background: Waterpipe smoking (WPS) is widely believed to be a safe and hazard-free tobacco habit. However, a number of studies have indicated that exposure to several toxicants and carcinogens through WPS is strongly related to serious health hazards. The current paper presents a narrative review on the effects of WPS on cancer outcome. Methods: The addressed focused question was “Is there an association between waterpipe smoking and cancer outcome?” PubMed, Medline, EMBASE, ISI Web of Science and the Cochrane databases were searched until June 2015 using the key words “Waterpipe”, “Hookah”, “Narghileh”, “Shisha”, “Hubbly Bubbly” “cancer” in various combinations...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28345684/-analysis-of-changes-in-radiographic-lung-image-and-lung-ventilation-disorders-in-workers-occupationally-exposed-to-chrysotile-in-the-past
#7
Elżbieta Cwynar, Beata Świątkowska, Jarosław Tomczyk
BACKGROUND: The adverse health effects of occupational exposure to asbestos dust may occur several years after first exposure. The objective of the study was to assess the relationship between lesions in the respiratory system and the factors contributing to occupational exposure to asbestos described in the first medical examination as well as to analyze the factors responsible for the progression of these changes in further medical tests. MATERIAL AND METHODS: The study group comprised 591 former workers of asbestos processing plant "Gambit" in Lubawka...
March 24, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28345676/bioconversion-of-stilbenes-in-genetically-engineered-root-and-cell-cultures-of-tobacco
#8
Diego Hidalgo, Ascensión Martínez-Márquez, Elisabeth Moyano, Roque Bru-Martínez, Purificación Corchete, Javier Palazon
It is currently possible to transfer a biosynthetic pathway from a plant to another organism. This system has been exploited to transfer the metabolic richness of certain plant species to other plants or even to more simple metabolic organisms such as yeast or bacteria for the production of high added value plant compounds. Another application is to bioconvert substrates into scarcer or biologically more interesting compounds, such as piceatannol and pterostilbene. These two resveratrol-derived stilbenes, which have very promising pharmacological activities, are found in plants only in small amounts...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28345518/oropharyngeal-squamous-cell-carcinoma-and-hpv-systematic-review-on-overall-management
#9
S De Santis, M C Spinosi, J Cambi, C Bengala, S Boccuzzi
INTRODUCTION: Oral human papillomavirus infection amplifies the risk for oropharyngeal cancer. Human papillomavirus-associated cancers in otorhinolaryngology have typical characteristics. PATIENTS AND METHODS: To improve understanding of management, therapy and prognosis of patients with oropharyngeal human papillomavirus-associated cancers a systematic review of the literature was reported. Medline, The Cochrane Library, Embase and Scielo electronic databases were searched...
February 24, 2017: J Stomatol Oral Maxillofac Surg
https://www.readbyqxmd.com/read/28345330/relationship-of-lifetime-exposure-to-tobacco-alcohol-and-second-hand-tobacco-smoke-with-upper-aero-digestive-tract-cancers-in-india-a-case-control-study-with-a-life-course-perspective
#10
Bhawna Gupta, Narinder Kumar, Newell W Johnson
Background: Squamous cell carcinomas of the upper aero-digestive tract (UADTSCC) are a multifaceted public health problem. Effects of lifestyle risk factors, including tobacco (chewing and smoking), alcohol drinking and exposure to second hand tobacco smoke (SHS) at home and their association with UADT cancers was assessed in a case-control study with a life-course perspective. The study was conducted at two different hospitals in Pune, India. Material and methods: The total sample size (N=480) included 240 histopathologically confirmed cases of UADT cancers and an equal number of controls frequency matched with cases by gender and age distribution (+5 years)...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28345328/esophageal-cancer-and-associated-factors-among-uzbek-turkmen-and-other-ethnic-groups-in-the-northern-part-of-afghanistan
#11
Mohammad Hassan Hamrah, Mohammad Shoaib Hamrah, Mitsuro Kanda, Junichi Sakamoto, Mohammad Hussain Hamrah, Asif Hami, Ahmad Edris Hamrah, Ahmad Elias Dahi, Mohammad Hashem Hamrah
Background: A high incidence rate of esophageal cancer has been observed in the Northern part of Afghanistan, particularly among those of Uzbek-Turkmen ethnicity. However, there is a paucity of published data from which to compare the prevalence of environmental risk factors for esophageal cancer between Uzbek-Turkmen and other ethnic groups. Thus, we investigated the prevalence of environmental risk factors associated with esophageal cancer in the Northern part of Afghanistan, focusing on ethnicity differences...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28345014/the-cigarette-and-smokeless-tobacco-markets-in-texas-relative-to-the-united-states
#12
Erin J Miller Lo, Daniel P Giovenco, Olivia A Wackowski, Melissa B Harrell, Cheryl L Perry, Cristine D Delnevo
OBJECTIVE: This study compares the cigarette and smokeless tobacco (SLT) markets in Texas and the United States (US) as a whole. METHODS: Nielsen convenience store sales data from 2014 were obtained for Dallas, Houston, San Antonio/Austin, and the total US. Descriptive statistics highlighted market share differences in Texas compared to the US overall. RESULTS: Marlboro and Copenhagen dominated the cigarette (58.9%) and SLT markets (44.8%) in Texas and had substantially higher relative market shares in Texas than nationally (46...
April 2017: Tobacco Regulatory Science
https://www.readbyqxmd.com/read/28344670/tobacco-intervention-research-in-low-and-middle-income-countries-lessons-learned-and-future-directions
#13
Kenneth D Ward
No abstract text is available yet for this article.
June 2016: Journal of Smoking Cessation
https://www.readbyqxmd.com/read/28344589/characterization-of-genes-encoding-key-enzymes-involved-in-anthocyanin-metabolism-of-kiwifruit-during-storage-period
#14
Boqiang Li, Yongxiu Xia, Yuying Wang, Guozheng Qin, Shiping Tian
'Hongyang' is a red fleshed kiwifruit with high anthocyanin content. In this study, we mainly investigated effects of different temperatures (25 and 0°C) on anthocyanin biosynthesis in harvested kiwifruit, and characterized the genes encoding key enzymes involved in anthocyanin metabolism, as well as evaluated the mode of the action, by which low temperature regulates anthocyanin accumulation in 'Hongyang' kiwifruit during storage period. The results showed that low temperature could effectively enhance the anthocyanin accumulation of kiwifruit in the end of storage period (90 days), which related to the increase in mRNA levels of ANS1, ANS2, DRF1, DRF2, and UGFT2...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28344543/chinese-immigrant-men-smokers-sources-of-cigarettes-in-canada-a-qualitative-study
#15
Aimei Mao, Joan L Bottorff, John L Oliffe, Gayl Sarbit, Mary T Kelly
BACKGROUND: Immigrants often experience economic hardship in their host country and tend to belong to economically disadvantaged groups. Individuals of lower socioeconomic status tend to be more sensitive to cigarette price changes. This study explores the cigarette purchasing patterns among Chinese Canadian male immigrants. METHODS: Semi-structured in-depth interviews were conducted with 22 Chinese Canadian immigrants who were smoking or had quit smoking in the last five years...
2017: Tobacco Induced Diseases
https://www.readbyqxmd.com/read/28343330/human-papilloma-virus-hpv-infection-leads-to-the-development-of-head-and-neck-lesions-but-offers-better-prognosis-in-malignant-indian-patients
#16
Shreya Sarkar, Neyaz Alam, Jayanta Chakraborty, Jaydip Biswas, Syam Sundar Mandal, Susanta Roychoudhury, Chinmay Kumar Panda
Head and neck cancers constitute a multifactorial global disease burden and are associated with human papilloma virus (HPV) as a possible risk factor. The aim of the study is to understand the relationship between HPV and the development of head and neck lesions in Indian patients. To this end, frequency of HPV was assessed in relation to different demographic and etiological features and correlated with patient survival. The prevalence of HPV significantly increased from mild dysplastic lesions (43.6%) to head and neck squamous cell carcinoma (HNSCC) stage IV (68...
March 25, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28343039/study-of-trace-metal-imbalances-in-the-blood-scalp-hair-and-nails-of-oral-cancer-patients-from-pakistan
#17
Muhammad Abdul Qayyum, Munir H Shah
Oral cancer is an important cause of cancer morbidity and mortality globally and exposure to trace metals alongside tobacco, alcohol and HPV are the important etiological factors in its development. Selected essential and toxic trace metals (Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) were measured in the blood, scalp hair and nails of oral cancer patients and counterpart controls by atomic absorption spectrometry. Mean concentrations of Cd, Ni and Pb were found to be significantly higher (p<0.05) and those of Cu, Fe and Zn were considerably lower in the blood, scalp hair and nails of the patients than the controls...
March 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28342844/a-system-dynamics-modelling-approach-to-assess-the-impact-of-launching-a-new-nicotine-product-on-population-health-outcomes
#18
Andrew Hill, Oscar M Camacho
In 2012 the US FDA suggested the use of mathematical models to assess the impact of releasing new nicotine or tobacco products on population health outcomes. A model based on system dynamics methodology was developed to project the potential effects of a new nicotine product at a population level. A model representing traditional smoking populations (never, current and former smokers) and calibrated using historical data was extended to a two-product model by including electronic cigarettes use statuses. Smoking mechanisms, such as product initiation, switching, transition to dual use, and cessation, were represented as flows between smoking statuses (stocks) and the potential effect of smoking renormalisation through a feedback system...
March 22, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28342700/nicotine-replacement-therapy-in-patients-with-aneurysmal-subarachnoid-hemorrhage-systematic-review-of-the-literature-and-survey-of-canadian-practice
#19
REVIEW
Ricky D Turgeon, Stephano J Chang, Charlotte Dandurand, Peter A Gooderham, Camille Hunt
Tobacco smoke increases the risk of aneurysmal subarachnoid hemorrhage (SAH), as well as complications such as vasospasm. Most patients presenting with aneurysmal SAH smoke, and many survivors continue to smoke after discharge. Neurosurgeons often hesitate to use nicotine replacement therapy (NRT) during hospitalization of patients with SAH due to concerns of inducing vasospasm. We aimed to evaluate the safety and efficacy, and patterns of use of NRT in smokers hospitalized for SAH. We performed a systematic review of MEDLINE, CENTRAL, Embase, and unpublished sources of literature to October 2016 for randomized and observational studies comparing exposure to non-exposure of smoking cessation products in the acute phase of aneurysmal SAH...
March 22, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28342450/scientific-feuds-polemics-and-ad-hominem-arguments-in-basic-and-special-interest-genetics
#20
Elof Axel Carlson
Scientific disputes are commonly presented and settled in journal publications. Most are resolved by a weighing of evidence and new findings. In some cases the arguments are personal and in the form of ad hominem attacks on the personality or integrity of an author of a journal article. Many famous scientists (e.g., Galileo, Newton, and Hooke) used ad hominem arguments in responding to their critics. William Bateson, W.F.R. Weldon, William Castle, and H.J. Muller used ad hominem arguments in their publications until the end of World War I, when editorial policy of journals changed...
January 2017: Mutation Research
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