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Quit attempts and intention to quit cigarette smoking among young adults in the United States 2007 Division of Cancer Control and Population Sciences, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-7337, USA. faganp@mail.nih.gov
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
American Journal of Public Health
Periodical, Abbrev.
Am.J.Public Health
Pub Date Free Form
Aug
Volume
97
Issue
8
Start Page
1412
Other Pages
1420
Notes
LR: 20140904; GR: N01-CO-12400/CO/NCI NIH HHS/United States; JID: 1254074; OID: NLM: PMC1931471; 2007/06/28 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1541-0048; 0090-0036
Accession Number
PMID: 17600244
Language
eng
SubFile
Journal Article; Research Support, N.I.H., Extramural; AIM; IM
DOI
AJPH.2006.103697 [pii]
Output Language
Unknown(0)
PMID
17600244
Abstract
OBJECTIVES: We investigated variables associated with quitting behaviors among current, daily, and nondaily young adult smokers in the United States. METHODS: Data from the national 2003 Tobacco Use Special Cessation Supplement to the Current Population Survey were analyzed to identify factors associated with quit attempts and serious intention to quit among young adult smokers aged 18 to 30 years (n=7912). RESULTS: Daily smokers who smoked 20 or more cigarettes per day, had their first cigarette within 30 minutes of waking, and smoked no usual type were less likely than were their comparison groups to have 1 more or quit attempts. Nondaily smokers who were male, Hispanic, and smoked no usual type of cigarette were also less likely than were their comparison groups to report 1 or more quit attempts. Although unemployed nondaily smokers were more likely than were the employed to report intention to quit, nondaily smokers with an annual family income of $25,000 to $49,000 were less likely than were higher-income families to report intention to quit. CONCLUSIONS: Nicotine dependence measures were significantly associated with quitting and intention to quit among daily smokers, but sociodemographics were associated with quitting and intention to quit among nondaily smokers.
Descriptors
Adolescent, Adult, Cross-Sectional Studies, Female, Health Behavior, Humans, Intention, Logistic Models, Male, Multivariate Analysis, Prevalence, Smoking/epidemiology/prevention & control/psychology, Smoking Cessation/ethnology/psychology/statistics & numerical data, Socioeconomic Factors, United States/epidemiology
Links
Book Title
Database
Publisher
Data Source
Authors
Fagan,P., Augustson,E., Backinger,C. L., O'Connell,M. E., Vollinger,R. E.,Jr, Kaufman,A., Gibson,J. T.
Original/Translated Title
URL
Date of Electronic
20070628
PMCID
PMC1931471
Editors
Quit attempt correlates among smokers by race/ethnicity 2011 Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health, 4770 Buford Highway, Atlanta, GA 30341, USA. jkahende@cdc.gov
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
International journal of environmental research and public health
Periodical, Abbrev.
Int.J.Environ.Res.Public.Health.
Pub Date Free Form
Oct
Volume
8
Issue
10
Start Page
3871
Other Pages
3888
Notes
LR: 20151119; JID: 101238455; OID: NLM: PMC3210587; OTO: NOTNLM; 2011/08/31 [received]; 2011/09/23 [accepted]; 2011/09/28 [epublish]; ppublish
Place of Publication
Switzerland
ISSN/ISBN
1660-4601; 1660-4601
Accession Number
PMID: 22073018
Language
eng
SubFile
Journal Article; IM
DOI
10.3390/ijerph8103871 [doi]
Output Language
Unknown(0)
PMID
22073018
Abstract
INTRODUCTION: Cigarette smoking is the leading preventable cause of premature deaths in the U.S., accounting for approximately 443,000 deaths annually. Although smoking prevalence in recent decades has declined substantially among all racial/ethnic groups, disparities in smoking-related behaviors among racial/ethnic groups continue to exist. Two of the goals of Healthy People 2020 are to reduce smoking prevalence among adults to 12% or less and to increase smoking cessation attempts by adult smokers from 41% to 80%. Our study assesses whether correlates of quit attempts vary by race/ethnicity among adult (>/= 18 years) smokers in the U.S. Understanding racial/ethnic differences in how both internal and external factors affect quit attempts is important for targeting smoking-cessation interventions to decrease tobacco-use disparities. METHODS: We used 2003 Tobacco Use Supplement to the Current Population Survey (CPS) data from 16,213 adults to examine whether the relationship between demographic characteristics, smoking behaviors, smoking policies and having made a quit attempt in the past year varied by race/ethnicity. RESULTS: Hispanics and persons of multiple races were more likely to have made a quit attempt than whites. Overall, younger individuals and those with >high school education, who smoked fewer cigarettes per day and had smoked for fewer years were more likely to have made a quit attempt. Having a smoke-free home, receiving a doctor's advice to quit, smoking menthol cigarettes and having a greater time to when you smoked your first cigarette of the day were also associated with having made a quit attempt. The relationship between these four variables and quit attempts varied by race/ethnicity; most notably receiving a doctor's advice was not related to quit attempts among Asian American/Pacific Islanders and menthol use among whites was associated with a lower prevalence of quit attempts while black menthol users were more likely to have made a quit attempt than white non-menthol users. CONCLUSIONS: Most correlates of quit attempts were similar across all racial/ethnic groups. Therefore population-based comprehensive tobacco control programs that increase quit attempts and successful cessation among all racial/ethnic groups should be continued and expanded. Additional strategies may be needed to encourage quit attempts among less educated, older, and more addicted smokers.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Kahende,J.W., Malarcher,A.M., Teplinskaya,A., Asman,K.J.
Original/Translated Title
URL
Date of Electronic
20110928
PMCID
PMC3210587
Editors
Quinacrine inhibits Candida albicans growth and filamentation at neutral pH 2014 Section of Infectious Diseases, New Mexico Veterans Health Care System, Albuquerque, New Mexico, USA.; Section of Infectious Diseases, New Mexico Veterans Health Care System, Albuquerque, New Mexico, USA Division of Infectious Diseases, University of New
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Antimicrobial Agents and Chemotherapy
Periodical, Abbrev.
Antimicrob.Agents Chemother.
Pub Date Free Form
Dec
Volume
58
Issue
12
Start Page
7501
Other Pages
7509
Notes
LR: 20151029; CI: Copyright (c) 2014; GR: K12 GM088021/GM/NIGMS NIH HHS/United States; JID: 0315061; 0 (Antifungal Agents); 0 (Antiprotozoal Agents); 0 (Drug Combinations); 0 (Echinocandins); 7XU7A7DROE (Amphotericin B); 8VZV102JFY (Fluconazole); F0XDI6ZL
Place of Publication
United States
ISSN/ISBN
1098-6596; 0066-4804
Accession Number
PMID: 25288082
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; IM
DOI
10.1128/AAC.03083-14 [doi]
Output Language
Unknown(0)
PMID
25288082
Abstract
Candida albicans is a common cause of catheter-related bloodstream infections (CR-BSI), in part due to its strong propensity to form biofilms. Drug repurposing is an approach that might identify agents that are able to overcome antifungal drug resistance within biofilms. Quinacrine (QNC) is clinically active against the eukaryotic protozoan parasites Plasmodium and Giardia. We sought to investigate the antifungal activity of QNC against C. albicans biofilms. C. albicans biofilms were incubated with QNC at serially increasing concentrations (4 to 2,048 mug/ml) and assessed using a 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide (XTT) assay in a static microplate model. Combinations of QNC and standard antifungals were assayed using biofilm checkerboard analyses. To define a mechanism of action, QNC was assessed for the inhibition of filamentation, effects on endocytosis, and pH-dependent activity. High-dose QNC was effective for the prevention and treatment of C. albicans biofilms in vitro. QNC with fluconazole had no interaction, while the combination of QNC and either caspofungin or amphotericin B demonstrated synergy. QNC was most active against planktonic growth at alkaline pH. QNC dramatically inhibited filamentation. QNC accumulated within vacuoles as expected and caused defects in endocytosis. A tetracycline-regulated VMA3 mutant lacking vacuolar ATPase (V-ATPase) function demonstrated increased susceptibility to QNC. These experiments indicate that QNC is active against C. albicans growth in a pH-dependent manner. Although QNC activity is not biofilm specific, QNC is effective in the prevention and treatment of biofilms. QNC antibiofilm activity likely occurs via several independent mechanisms: vacuolar alkalinization, inhibition of endocytosis, and impaired filamentation. Further investigation of QNC for the treatment and prevention of biofilm-related Candida CR-BSI is warranted.
Descriptors
Links
Book Title
Database
Publisher
American Society for Microbiology. All Rights Reserved
Data Source
Authors
Kulkarny,V.V., Chavez-Dozal,A., Rane,H.S., Jahng,M., Bernardo,S.M., Parra,K.J., Lee,S.A.
Original/Translated Title
URL
Date of Electronic
20141006
PMCID
PMC4249548
Editors
Quercetin and quercetin 3-O-glycosides from Bauhinia longifolia (Bong.) Steud. show anti-Mayaro virus activity 2014 Microbiology Institute, Virology Department, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. davisf@micro.ufrj.br.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Parasites & vectors
Periodical, Abbrev.
Parasit.Vectors
Pub Date Free Form
28-Mar
Volume
7
Issue
Start Page
130
Other Pages
3305-7-130
Notes
LR: 20150514; JID: 101462774; 0 (Antioxidants); 0 (Antiviral Agents); 0 (Glycosides); 9IKM0I5T1E (Quercetin); OID: NLM: PMC3973022; 2014/01/20 [received]; 2014/03/12 [accepted]; 2014/03/28 [aheadofprint]; epublish
Place of Publication
England
ISSN/ISBN
1756-3305; 1756-3305
Accession Number
PMID: 24678592
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1186/1756-3305-7-130 [doi]
Output Language
Unknown(0)
PMID
24678592
Abstract
BACKGROUND: The arthropod-borne Mayaro virus (MAYV) causes 'Mayaro fever', a disease of medical significance, primarily affecting individuals in permanent contact with forested areas in tropical South America. Recently, MAYV has attracted attention due to its likely urbanization. Currently, there are no licensed drugs against most mosquito-transmitted viruses. Here, we investigated the in vitro anti-MAYV activity of the flavonoids quercetin and its derivatives from the Brazilian shrub Bauhinia longifolia (Bong.) Steud. METHODS: Flavonoids were purified by chromatographic fractionation from leaf extracts of B. longifolia and chemically identified as quercetin and quercetin glycosides using spectroscopic techniques. Cytotoxicity of purified flavonoids and of EtOAc- and n-BuOH-containing flavonoid mixtures was measured by the dye-uptake assay while their antiviral activity was evaluated by a virus yield inhibition assay. RESULTS: The following flavonoids were purified from B. longifolia leaves: non-glycosylated quercetin and its glycosides guaijaverin, quercitrin, isoquercitrin, and hyperin. EtOAc and n-BuOH fractions containing these flavonoids demonstrated the highest antiviral activity of all tested substances, while quercetin had the highest antiviral activity amongst purified flavonoids. Quercetin, EtOAc, or n-BuOH fractions inhibited MAYV production by more than 90% at 25 mug/mL, displaying a stronger antiviral effect than the licensed antiviral ribavirin. A mixture of the isomers isoquercitrin and hyperin had a modest antiviral effect (IC90 = 104.9), while guaijaverin and quercitrin did not show significant antiviral activity. CONCLUSIONS: B. longifolia is a good source of flavonoids with anti-Mayaro virus activity. This is the first report of the activity of quercetin and its derivatives against an alphavirus.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
dos Santos,A.E., Kuster,R.M., Yamamoto,K.A., Salles,T.S., Campos,R., de Meneses,M.D., Soares,M.R., Ferreira,D.
Original/Translated Title
URL
Date of Electronic
20140328
PMCID
PMC3973022
Editors
Quantitative ultrasound and bone mineral density are equally strongly associated with risk factors for osteoporosis 2001 Osteoporosis Screening and Research Unit, Guy's Hospital, London, United Kingdom.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research
Periodical, Abbrev.
J.Bone Miner.Res.
Pub Date Free Form
Feb
Volume
16
Issue
2
Start Page
406
Other Pages
416
Notes
LR: 20071115; JID: 8610640; ppublish
Place of Publication
United States
ISSN/ISBN
0884-0431; 0884-0431
Accession Number
PMID: 11204441
Language
eng
SubFile
Journal Article; IM
DOI
10.1359/jbmr.2001.16.2.406 [doi]
Output Language
Unknown(0)
PMID
11204441
Abstract
Because resources do not allow all women to be screened for osteoporosis, clinical risk factors are often used to identify those individuals at increased risk of fracture who are then assessed by bone densitometry. The aim of this study was to compare calcaneal quantitative ultrasound (QUS) and axial bone mineral density (BMD) T and Z scores in a large group of women, some with no clinical risk factors and others with one or more risk factors for osteoporosis. The study population consisted of 1115 pre- and postmenopausal women. A subgroup of 530 women was used to construct reference data for calculating T and Z scores. A total of 786 women was found to have one or more of the following risk factors: (i) atraumatic fracture since the age of 25 years, (ii) report of X-ray osteopenia, (iii) predisposing medical condition or use of therapy known to affect bone metabolism, (iv) premature menopause before the age of 45 years or a history of amenorrhea of longer than 6 months duration, (v) family history of osteoporosis, (vi) body mass index (BMI) <20 kg/m2, and (vii) current smoking habit. Calcaneal broadband ultrasound attenuation (BUA) and speed of sound (SOS) measurements were performed on a Hologic Sahara and a DTUone and BMD was measured at the spine and hip using dual-energy X-ray absorptiometry (DXA). The Z score decrements associated with the seven risk factors calculated using multivariate regression analysis were similar for QUS and BMD measurements. Z score decrements (mean of BMD and QUS measurements combined) associated with a history of atraumatic fracture (-0.67), X-ray osteopenia (-0.36), a family history of osteoporosis (-0.23), and a low BMI (-0.53) were all statistically significant compared with women with no risk factors. Z score decrements associated with a medical condition or use of therapy known to affect bone metabolism, a premature menopause or prolonged amenorrhea, or those who were current smokers were not significantly different from zero. As the number of risk factors present in each individual increased, the mean Z score decrements became more negative, increasing from -0.28 for women with one risk factor to -1.19 for those with four or more risk factors. QUS and BMD measurements yielded similar mean Z scores for women with one, two, three, or more than four risk factors. Using the World Health Organization (WHO) criteria to diagnose osteoporosis for BMD measurements and revised diagnostic criteria for QUS, approximately one-third of postmenopausal women aged 50+ years with clinical risk factors were classified as osteoporotic compared with only 12% of women without clinical risk factors. Over two-thirds of postmenopausal women with risk factors were classified as osteopenic or osteoporotic and approximately 28% were classified as normal. The proportion of women classified into each diagnostic category was similar for BMD and QUS. In conclusion, clinical risk factors for osteoporosis affected calcaneal BUA and SOS Z score measurements to the same extent as axial BMD Z score measurements. Provided revised diagnostic criteria are adopted for QUS, similar proportions of postmenopausal women are identified as osteopenic or osteoporotic as with BMD.
Descriptors
Absorptiometry, Photon, Adult, Bone Density, Humans, Male, Middle Aged, Osteoporosis/physiopathology/ultrasonography, Prevalence, Risk Factors
Links
Book Title
Database
Publisher
Data Source
Authors
Frost,M. L., Blake,G. M., Fogelman,I.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Quantitative studies on the transmission of Onchocerca volvulus by Simulium damnosum in the Bong Range, Liberia 1973 Bernhard Nocht Inst. Schiffs- Tropenkrankh., Hamburg
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Periodical, Abbrev.
Z.TROPENMED.PARASIT.
Pub Date Free Form
1973/
Volume
24
Issue
3
Start Page
358
Other Pages
372
Notes
Place of Publication
ISSN/ISBN
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Quantitative aspects of the transmission of O. volvulus have been investigated in an area of the tropical rain forest zone in West Liberia. The daily and annual cycles of biting densities, age composition and infection rates of the Simulium damnosum population have been studied for one or more years at 7 catching sites. Dissections of 67,758 females of S. damnosum revealed a mean annual parous rate of 10.9%; 17.2% of the parous flies carried developing filaria infections, 2.6% third stage larvae of O. volvulus, and 3.0% third stage larvae of other filaria species. An average of 900 O. volvulus larvae theoretically transmitted per man per year was calculated. This transmission potential was associated with a microfilariae carrier rate of 63% in the human population.
Descriptors
arthropod, carrier, epidemiology, Microfilaria, Onchocerca volvulus, onchocerciasis, prevention, Simulium damnosum
Links
Book Title
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Garms,R.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Quantitative evaluation of the radon and lung cancer association in a case control study of Chinese tin miners 1990 Lubin, J.H., Epidemiologic Methods Section, Biostatistics Branch, National Cancer Institute, Rockville, MD 20892, United States
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Cancer research
Periodical, Abbrev.
Cancer Res.
Pub Date Free Form
1990/
Volume
50
Issue
1
Start Page
174
Other Pages
180
Notes
Place of Publication
ISSN/ISBN
0008-5472
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Studies of underground miners have consistently shown an increased risk of lung cancer with cumulative exposure to radon-222 and its decay products. Although the deleterious effects of high radon exposure are clear, questions regarding the shape of the exposure-response relationship, and the effects of time factors such as attained age, time since exposure and early age at first exposure, the effect of exposure rate, and the joint association of radon exposure and tobacco use have not yet been fully clarified. This report considers these questions by fitting various models for the relative odds of disease to 74 male lung cancer cases who were diagnosed between 1981 and 1984 and were alive in 1985 and an equal number of controls. All subjects are current or past employees of the Yunnan Tin Corporation, Gejiu City, China, who reside in the local area. Workers were interviewed to obtain information on work history, from which radon exposure in cumulative working level months and arsenic exposure were estimated, and on tobacco use. Results indicate that excess relative risk increases by 1.7% per cumulative working level month [95% confidence interval (0.5, 5.4)]. The linear exposure response relationship significantly declines with year since last radon exposure (P=0.02). The risk trend also declines with increasing exposure rate (P=0.001), indicating that long duration of exposure at a low rate may be more deleterious than short duration of exposure at a high rate. A unique aspect of this study population is the very early ages at first radon exposure for many of the workers, about 37% of the radon-exposed workers were first exposed under the age of 13 years. The analysis shows no modification of the radon lung cancer relationship with age at first exposure. These patterns of risk with radon exposure are generally consistent with those reported in the recent National Academy of Sciences' Biological Effects of Ionizing Radiations IV report. The primary method of tobacco consumption in this area of China is by waterpipe. Lung cancer risk increases with pipe-years of use. The joint analysis of tobacco use and radon exposure supports the Biological Effects of Ionizing Radiations IV conclusion that the most likely model is between additive and multiplicative. The variations of the radon lung cancer relationship by years since last exposure and exposure rate are not affected by adjustment for arsenic exposure.
Descriptors
radon, tin, article, cancer risk, case control study, China, controlled study, human, lung cancer, major clinical study, miner, priority journal, quantitative assay
Links
Book Title
Database
Embase; MEDLINE
Publisher
Data Source
Embase
Authors
Lubin,J. H., Qiao,Y. -L, Taylor,P. R., Yao,S. -X, Schatzkin,A., Mao,B. -L, Rao,J. -Y, Xuan,X. -Z, Li,J. -Y
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Quantitative detection of bisphenol A and bisphenol A diglycidyl ether metabolites in human plasma by liquid chromatography-electrospray mass spectrometry 2001 Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Hoshi University, Tokyo, Japan.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of chromatography.B, Biomedical sciences and applications
Periodical, Abbrev.
J.Chromatogr.B Biomed.Sci.Appl.
Pub Date Free Form
25-Dec
Volume
765
Issue
2
Start Page
121
Other Pages
126
Notes
LR: 20131121; JID: 9714109; 0 (Benzhydryl Compounds); 0 (Epoxy Compounds); 0 (Phenols); F3XRM1NX4H (2,2-bis(4-glycidyloxyphenyl)propane); MLT3645I99 (bisphenol A); ppublish
Place of Publication
Netherlands
ISSN/ISBN
1387-2273; 1387-2273
Accession Number
PMID: 11767304
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
Output Language
Unknown(0)
PMID
11767304
Abstract
Due to the ubiquity of epoxy resin compounds and their potential role in increasing the risk for reproductive dysfunction and cancer, the need for an assessment of human exposure is urgent. Therefore, we developed a method for measuring bisphenol A (BPA) and bisphenol A diglycidyl ether (BADGE) metabolites in human blood samples using high-performance liquid chromatography-electrospray ionization mass spectrometry (LC-MS). Human blood samples were processed using enzymatic deconjugation of the glucuronides followed by a novel sample preparation procedure using a solid-phase-cartridge column. This selective analytical method permits rapid detection of the metabolites, free BPA and a hydrolysis product of BADGE (BADGE-40H) with detection limits in the low nanogram per milliliter range (0.1 ng ml(-1) of BPA and 0.5 ng ml(-1) of BADGE-40H). The sample extraction was achieved by Oasis HLB column on gradient elution. The recoveries of BPA and BADGE-40H added to human plasma samples were above 70.0% with a standard deviation of less than 5.0%. This selective, sensitive and accurate method will assist in elucidating potential associations between human exposure to epoxy-based compounds and adverse health effects.
Descriptors
Benzhydryl Compounds, Chromatography, Liquid/methods, Epoxy Compounds/analysis, Humans, Phenols/blood, Spectrometry, Mass, Electrospray Ionization/methods
Links
Book Title
Database
Publisher
Data Source
Authors
Inoue,K., Yamaguchi,A., Wada,M., Yoshimura,Y., Makino,T., Nakazaw,H.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Quantitative comparisons between a nicotine delivery device (Eclipse) and conventional cigarette smoking 2004 National Institute on Drug Abuse, Intramural Research Program, Baltimore, MD, USA.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco
Periodical, Abbrev.
Nicotine Tob.Res.
Pub Date Free Form
Feb
Volume
6
Issue
1
Start Page
95
Other Pages
102
Notes
LR: 20151119; GR: 5-P50-CA84718/CA/NCI NIH HHS/United States; JID: 9815751; 6M3C89ZY6R (Nicotine); 7U1EE4V452 (Carbon Monoxide); ppublish
Place of Publication
England
ISSN/ISBN
1462-2203; 1462-2203
Accession Number
PMID: 14982693
Language
eng
SubFile
Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.; IM
DOI
10.1080/14622200310001656911 [doi]
Output Language
Unknown(0)
PMID
14982693
Abstract
In 1997, R. J. Reynolds introduced Eclipse, a nicotine delivery device (NDD) purported to deliver lower levels of smoke than conventional cigarettes. This NDD uses a carbon fuel element to vaporize the nicotine in the rod; the user then inhales the nicotine vapor. In the present study, the effects of this NDD on smoking topography; substance delivery factors; and physiological, subjective, and biochemical markers of smoking were compared with commercial cigarettes (referred to as Own Brand). All smoking occurred ad lib with the cigarette or NDD hand-held (conventional) or held in a topography mouthpiece. A total of 10 adults (seven males) smoked on five occasions: NDD conventional, NDD topography, Own Brand conventional, Own Brand topography (twice). Sessions were separated by at least 24 hr. Measures were taken before and 2, 5, 10, 15, 30, and 60 min after smoking. The NDD took longer to smoke (366 s vs. 292 s), required more puffs (14.8 vs. 10.8), and caused a larger increase in exhaled carbon monoxide (CO; 7.3 ppm vs. 4.2 ppm) than Own Brand. However, venous plasma nicotine boost was significantly larger 2 min after smoking Own Brand as compared with the NDD (16.4 ng/ml vs. 10.7 ng/ml). Puff volume (90.7 ml vs. 63.0 ml) and puff velocity (81.6 ml/s vs. 58.2 ml/s) were greater after the NDD than Own Brand, whereas inter-puff interval and puff duration were similar. Subjects rated the NDD as less satisfying (5.2 vs. 9.8), less rewarding (9.5 vs. 14.3), and more aversive (5.0 vs. 3.1) than their own brand. The results of this study indicate that this NDD exposes the user to significant quantities of nicotine, CO, and possibly other harmful components of tobacco smoke. The findings further validate the use of a topography device as an effective instrument to quantify smoke exposure.
Descriptors
Adult, Blood Pressure/drug effects, Carbon Monoxide/analysis, Equipment Design, Female, Heart Rate/drug effects, Humans, Male, Middle Aged, Nicotine/administration & dosage/adverse effects/blood, Smoking Cessation/methods, Tobacco Use Disorder/epidemiology, Volatilization
Links
Book Title
Database
Publisher
Data Source
Authors
Lee,E. M., Malson,J. L., Moolchan,E. T., Pickworth,W. B.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Quantitative Analyses of Esophageal Cancer Research in Pakistan 2016 Department of Molecular Pathology, Dow International Medical College, Dow Diagnostic Research and Reference Laboratory, Dow University of Health Sciences Karachi, Pakistan Email : asif@asifqureshi.com.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Asian Pacific journal of cancer prevention : APJCP
Periodical, Abbrev.
Asian Pac.J.Cancer.Prev.
Pub Date Free Form
Volume
17
Issue
7
Start Page
3117
Other Pages
3122
Notes
JID: 101130625; ppublish
Place of Publication
Thailand
ISSN/ISBN
1513-7368; 1513-7368
Accession Number
PMID: 27509939
Language
eng
SubFile
Journal Article; IM
DOI
Output Language
Unknown(0)
PMID
27509939
Abstract
BACKGROUND: Healthcare research is a neglected discipline in Pakistan and research related to esophageal cancer (ranks 9th in Pakistani males and 5th in females) is no exception in this regard. Particularly, there are no data available to delineate the overall status of esophageal cancer epidemiological studies in Pakistan. This study describes the first ever effort to make a systematic quantification, in an attempt to provide a roadmap to all stakeholders for designing appropriate epidemiological, diagnostic and therapeutic strategies. MATERIALS AND METHODS: International (PubMed, ISI Web of Knowledge) and local (PakMedinet) scientific databases as well as Google search engine were searched using specified keywords to extract relevant publication. Well defined inclusion criteria were implemented to select publications for final analyses. All data were recorded by at least 3 authors and consensus data were entered into and analyzed for descriptive statistics (such as frequencies, percentages and annual growth rates) using Microsoft Excel and SPSS software. RESULTS: A total of 79 publications fulfilled the inclusion criteria including 20 publications for which full texts were not available. Of the 79 publications, 59 (74.6%) were original/research publications, 5 (6.3%) were case reports, 4 (5.1%) were research communications, 2 (2.5%) were review articles, 1 was (1.2%) correspondence and 8 (10.1%) were un defined categories. Only 13
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Qureshi,M.A., Khan,S., Ujjan,I.D., Iqbal,A., Khan,R., Khan,B.A.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors