WTS database

Title	Pub Year	Author	SearchLink Sort descending
Cigar and pipe smoking, smokeless tobacco use and pancreatic cancer: an analysis from the International Pancreatic Cancer Case-Control Consortium (PanC4)	2011	Department of Epidemiology, Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Annals of Oncology : Official Journal of the European Society for Medical Oncology / ESMO Periodical, Abbrev. Ann.Oncol. Pub Date Free Form Jun Volume 22 Issue 6 Start Page 1420 Other Pages 1426 Notes LR: 20150813; GR: 5R01-CA098870/CA/NCI NIH HHS/United States; GR: CA098889/CA/NCI NIH HHS/United States; GR: CA108370/CA/NCI NIH HHS/United States; GR: CA109767/CA/NCI NIH HHS/United States; GR: CA59706/CA/NCI NIH HHS/United States; GR: CA89726/CA/NCI NIH Place of Publication England ISSN/ISBN 1569-8041; 0923-7534 Accession Number PMID: 21245160 Language eng SubFile Journal Article; Research Support, N.I.H., Extramural; Research Support, N.I.H., Intramural; Research Support, Non-U.S. Gov't; IM DOI 10.1093/annonc/mdq613 [doi] Output Language Unknown(0) PMID 21245160 Abstract BACKGROUND: Cigarette smoking is the best-characterized risk factor for pancreatic cancer. However, data are limited for other tobacco smoking products and smokeless tobacco. MATERIALS AND METHODS: We conducted a pooled analysis of cigar and pipe smoking and smokeless tobacco use and risk of pancreatic cancer using data from 11 case-control studies (6056 cases and 11,338 controls) within the International Pancreatic Cancer Case-Control Consortium (PanC4). Pooled odds ratios (OR) and the corresponding 95% confidence intervals (CI) were estimated by unconditional multiple logistic regression models adjusted for study center and selected covariates. RESULTS: Compared with never tobacco users, the OR for cigar-only smokers was 1.6 (95% CI: 1.2-2.3), i.e. comparable to that of cigarette-only smokers (OR 1.5; 95% CI 1.4-1.6). The OR was 1.1 (95% CI 0.69-1.6) for pipe-only smokers. There was some evidence of increasing risk with increasing amount of cigar smoked per day (OR 1.82 for >/= 10 grams of tobacco), although not with duration. The OR for ever smokeless tobacco users as compared with never tobacco users was 0.98 (95% CI 0.75-1.3). CONCLUSION: This collaborative analysis provides evidence that cigar smoking is associated with an excess risk of pancreatic cancer, while no significant association emerged for pipe smoking and smokeless tobacco use. Descriptors Links Book Title Database Publisher Data Source Authors Bertuccio,P., La Vecchia,C., Silverman,D.T., Petersen,G.M., Bracci,P.M., Negri,E., Li,D., Risch,H.A., Olson,S.H., Gallinger,S., Miller,A.B., Bueno-de-Mesquita,H.B., Talamini,R., Polesel,J., Ghadirian,P., Baghurst,P.A., Zatonski,W., Fontham,E.T., Bamlet,W.R., Holly,E.A., Lucenteforte,E., Hassan,M., Yu,H., Kurtz,R.C., Cotterchio,M., Su,J., Maisonneuve,P., Duell,E.J., Bosetti,C., Boffetta,P. Original/Translated Title URL Date of Electronic 20110118 PMCID PMC3139985 Editors
Design, baseline characteristics, and retention of African American light smokers into a randomized trial involving biological data	2011	Department of Preventive Medicine and Public Health, University of Kansas Medical Center, Kansas City, KS, USA. lcox@kumc.edu	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Trials Periodical, Abbrev. Trials Pub Date Free Form 25-Jan Volume 12 Issue Start Page 22 Other Pages 12/22/6215 Notes LR: 20151119; ClinicalTrials.gov/NCT00666978; GR: 1P60MD003422/MD/NIMHD NIH HHS/United States; GR: R01 CA091912/CA/NCI NIH HHS/United States; GR: R01 CA091912-09/CA/NCI NIH HHS/United States; GR: R01 CA091912-09S1/CA/NCI NIH HHS/United States; GR: R01CA09 Place of Publication England ISSN/ISBN 1745-6215; 1745-6215 Accession Number PMID: 21266057 Language eng SubFile Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; IM DOI 10.1186/1745-6215-12-22 [doi] Output Language Unknown(0) PMID 21266057 Abstract BACKGROUND: African Americans experience significant tobacco-related health disparities despite the fact that over half of African American smokers are light smokers (use = 10 cigarettes per day). African Americans have been under-represented in smoking cessation research, and few studies have evaluated treatment for light smokers. This paper describes the study design, measures, and baseline characteristics from Kick It at Swope III (KIS-III), the first treatment study of bupropion for African American light smokers. METHODS: Five hundred forty African American light smokers were randomly assigned to receive bupropion (150 mg bid) (n = 270) or placebo (n = 270) for 7 weeks. All participants received written materials and health education counseling. Participants responded to survey items and provided blood samples for evaluation of phenotype and genotype of CYP2A6 and CYP2B6 enzymes involved in nicotine and bupropion metabolism. Primary outcome was cotinine-verified 7-day point prevalence smoking abstinence at Week 26 follow-up. RESULTS: Of 2,628 individuals screened, 540 were eligible, consented, and randomized to treatment. Participants had a mean age of 46.5 years and 66.1% were women. Participants smoked an average of 8.0 cigarettes per day, had a mean exhaled carbon monoxide of 16.4 ppm (range 1-55) and a mean serum cotinine of 275.8 ng/ml. The mean Fagerstrom Test for Nicotine Dependence was 3.2, and 72.2% of participants smoked within 30 minutes of waking. The average number of quit attempts in the past year was 3.7 and 24.2% reported using pharmacotherapy in their most recent quit attempt. Motivation and confidence to quit were high. CONCLUSION: KIS-III is the first study designed to examine both nicotine and bupropion metabolism, evaluating CYP2A6 and CYP2B6 phenotype and genotype in conjunction with psychosocial factors, in the context of treatment of African American light smokers. Of 1629 smokers screened for study participation, only 18 (1.1%) were ineligible to participate in the study because they refused blood draws, demonstrating the feasibility of recruiting and enrolling African American light smokers into a clinical treatment trial involving biological data collection and genetic analyses. Future evaluation of individual factors associated with treatment outcome will contribute to advancing tailored tobacco use treatment with the goal of enhancing treatment and reducing health disparities for African American light smokers. TRIAL REGISTRATION: ClinicalTrials.gov: NCT00666978. Descriptors Links Book Title Database Publisher Data Source Authors Cox,L.S., Faseru,B., Mayo,M.S., Krebill,R., Snow,T.S., Bronars,C.A., Nollen,N.L., Choi,W.S., Okuyemi,K.S., Salzman,G.A., Benowitz,N.L., Tyndale,R.F., Ahluwalia,J.S. Original/Translated Title URL Date of Electronic 20110125 PMCID PMC3038942 Editors
Acute effects of waterpipe tobacco smoking: a double-blind, placebo-control study	2011	Department of Psychology, Virginia Commonwealth University, Richmond, VA 23298-0205, USA.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Drug and alcohol dependence Periodical, Abbrev. Drug Alcohol Depend. Pub Date Free Form 1-Jul Volume 116 Issue 3-Jan Start Page 102 Other Pages 109 Notes LR: 20151119; CI: Published by Elsevier Ireland Ltd.; GR: F31 DA028102/DA/NIDA NIH HHS/United States; GR: F31 DA028102-02/DA/NIDA NIH HHS/United States; GR: F31DA028102/DA/NIDA NIH HHS/United States; GR: R01 CA120142/CA/NCI NIH HHS/United States; GR: R01 Place of Publication Ireland ISSN/ISBN 1879-0046; 0376-8716 Accession Number PMID: 21277706 Language eng SubFile Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; IM DOI 10.1016/j.drugalcdep.2010.11.026 [doi] Output Language Unknown(0) PMID 21277706 Abstract BACKGROUND: Waterpipe tobacco smoking usually involves heating flavored tobacco with charcoal and inhaling the resulting smoke after it has passed through water. Waterpipe tobacco smoking increases heart rate and produces subjective effects similar to those reported by cigarette smokers. These responses are thought to be nicotine-mediated, though no placebo-control studies exist. Accordingly, this double-blind, placebo-control study compared the acute physiological and subjective effects of waterpipe tobacco smoking to those produced when participants used a waterpipe to smoke a flavor-matched, tobacco-free preparation. METHODS: Occasional waterpipe tobacco smokers (n = 37; 2-5 monthly smoking episodes for >/= 6 months) completed two double-blind, counterbalanced sessions that differed by product: preferred brand/flavor of waterpipe tobacco or flavor-matched, tobacco-free preparation. For each 45-min, ad lib smoking episode blood and expired air CO were sampled, cardiovascular and respiratory response were measured, and subjective response was assessed. RESULTS: Waterpipe tobacco smoking significantly increased mean (+/- SEM) plasma nicotine concentration (3.6 +/- 0.7 ng/ml) and heart rate (8.6 +/- 1.4 bpm) while placebo did not (0.1 +/- 0.0 ng/ml; 1.3 +/- 0.9b pm). For carboxyhemoglobin (COHb) and expired air CO, significant increases were observed for tobacco (3.8 +/- 0.4%; 27.9 +/- 2.6 ppm) and for placebo (3.9 +/- 0.4%; 27.7 +/- 3.3 ppm) with no differences across condition. Independent of condition, symptoms of nicotine/tobacco abstinence (e.g., "urges to smoke", "anxious") were reduced and direct effects (e.g., "dizzy", "satisfy") increased. DISCUSSION: These results from the first placebo-control study of waterpipe tobacco smoking demonstrate that waterpipe-induced heart rate increases are almost certainly mediated by nicotine though the subjective effects observed in these occasional smokers were not. Descriptors Links Book Title Database Publisher Data Source Authors Blank,M.D., Cobb,C.O., Kilgalen,B., Austin,J., Weaver,M.F., Shihadeh,A., Eissenberg,T. Original/Translated Title URL Date of Electronic 20110201 PMCID PMC3098931 Editors
Natural populations of lactic acid bacteria associated with silage fermentation as determined by phenotype, 16S ribosomal RNA and recA gene analysis	2011	National Institute of Livestock and Grassland Science, Nasushiobara 329-2793, Japan.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Systematic and applied microbiology Periodical, Abbrev. Syst.Appl.Microbiol. Pub Date Free Form May Volume 34 Issue 3 Start Page 235 Other Pages 241 Notes LR: 20151119; CI: Copyright (c) 2011; GENBANK/AB572027; GENBANK/AB572028; GENBANK/AB572029; GENBANK/AB572030; GENBANK/AB572031; GENBANK/AB572032; GENBANK/AB572033; GENBANK/AB572034; GENBANK/AB572035; GENBANK/AB572036; GENBANK/AB572037; GENBANK/AB572038; G Place of Publication Germany ISSN/ISBN 1618-0984; 0723-2020 Accession Number PMID: 21282025 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.syapm.2010.10.003 [doi] Output Language Unknown(0) PMID 21282025 Abstract One hundred and fifty-six strains isolated from corn (Zea mays L.), forage paddy rice (Oryza sativa L.), sorghum (Sorghum bicolor L.) and alfalfa (Medicago sativa L.) silages prepared on dairy farms were screened, of which 110 isolates were considered to be lactic acid bacteria (LAB) according to their Gram-positive and catalase-negative characteristics and, mainly, the lactic acid metabolic products. These isolates were divided into eight groups (A-H) based on the following properties: morphological and biochemical characteristics, gamma-aminobutyric acid production capacity, and 16S rRNA gene sequences. They were identified as Weissella cibaria (36.4%), Weissella confusa (9.1%), Leuconostoc citreum (5.3%), Leuconostoc lactis (4.9%), Leuconostoc pseudomesenteroides (8.0%), Lactococcus lactis subsp. lactis (4.5%), Lactobacillus paraplantarum (4.5%) and Lactobacillus plantarum (27.3%). W. cibaria and W. confusa were mainly present in corn silages, and L. plantarum was dominant on sorghum and forage paddy rice silages, while L. pseudomesenteroides, L. plantarum and L. paraplantarum were the dominant species in alfalfa silage. The corn, sorghum and forage paddy rice silages were well preserved with lower pH values and ammonia-N concentrations, but had higher lactic acid content, while the alfalfa silage had relatively poor quality with higher pH values and ammonia-N concentrations, and lower lactic acid content. The present study confirmed the diversity of LAB species inhabiting silages. It showed that the differing natural populations of LAB on these silages might influence fermentation quality. These results will enable future research on the relationship between LAB species and silage fermentation quality, and will enhance the screening of appropriate inoculants aimed at improving such quality. Descriptors Links Book Title Database Publisher Elsevier GmbH Data Source Authors Pang,H., Qin,G., Tan,Z., Li,Z., Wang,Y., Cai,Y. Original/Translated Title URL Date of Electronic 20110201 PMCID Editors
Voriconazole-induced inhibition of the fungicidal activity of amphotericin B in Candida strains with reduced susceptibility to voriconazole: an effect not predicted by the MIC value alone	2011	Department of Medical Sciences, Section of Infectious Diseases, Uppsala University Hospital, SE-751 85 Uppsala, Sweden. anders.lignell@akademiska.se	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Antimicrobial Agents and Chemotherapy Periodical, Abbrev. Antimicrob.Agents Chemother. Pub Date Free Form Apr Volume 55 Issue 4 Start Page 1629 Other Pages 1637 Notes LR: 20150205; JID: 0315061; 0 (Antifungal Agents); 0 (CDR1 protein, Candida albicans); 0 (Fungal Proteins); 0 (Membrane Transport Proteins); 0 (Pyrimidines); 0 (Triazoles); 7XU7A7DROE (Amphotericin B); JFU09I87TR (Voriconazole); OID: NLM: PMC3067173; 2011 Place of Publication United States ISSN/ISBN 1098-6596; 0066-4804 Accession Number PMID: 21282443 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1128/AAC.00791-10 [doi] Output Language Unknown(0) PMID 21282443 Abstract An antagonistic effect of voriconazole on the fungicidal activity of sequential doses of amphotericin B has previously been demonstrated in Candida albicans strains susceptible to voriconazole. Because treatment failure and the need to switch to other antifungals are expected to occur more often in infections that are caused by resistant strains, it was of interest to study whether the antagonistic effect was still seen in Candida strains with reduced susceptibility to voriconazole. With the hypothesis that antagonism will not occur in voriconazole-resistant strains, C. albicans strains with characterized mechanisms of resistance against voriconazole, as well as Candida glabrata and Candida krusei strains with differences in their degrees of susceptibility to voriconazole were exposed to voriconazole or amphotericin B alone, to both drugs simultaneously, or to voriconazole followed by amphotericin B in an in vitro kinetic model. Amphotericin B administered alone or simultaneously with voriconazole resulted in fungicidal activity. When amphotericin B was administered after voriconazole, its activity was reduced (median reduction, 61%; range, 9 to 94%). Levels of voriconazole-dependent inhibition of amphotericin B activity differed significantly among the strains but were not correlated with the MIC values (correlation coefficient, -0.19; P = 0.65). Inhibition was found in C. albicans strains with increases in CDR1 and CDR2 expression but not in the strain with an increase in MDR1 expression. In summary, decreased susceptibility to voriconazole does not abolish voriconazole-dependent inhibition of the fungicidal activity of amphotericin B in voriconazole-resistant Candida strains. The degree of interaction could not be predicted by the MIC value alone. Descriptors Amphotericin B/pharmacology, Antifungal Agents/pharmacology, Candida/drug effects, Candida albicans/drug effects, Candida glabrata/drug effects, Drug Interactions, Drug Resistance, Fungal/genetics/physiology, Fungal Proteins/genetics/metabolism, Humans, Membrane Transport Proteins, Microbial Sensitivity Tests, Pyrimidines/pharmacology, Triazoles/pharmacology, Voriconazole Links Book Title Database Publisher Data Source Authors Lignell,A., Lowdin,E., Cars,O., Sanglard,D., Sjolin,J. Original/Translated Title URL Date of Electronic 20110131 PMCID PMC3067173 Editors
Novel PCR-based identification of Weissella confusa using an AFLP-derived marker	2011	National Research Council of Italy, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy. vincenzina.fusco@ispa.cnr.it	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full International journal of food microbiology Periodical, Abbrev. Int.J.Food Microbiol. Pub Date Free Form 28-Feb Volume 145 Issue 3-Feb Start Page 437 Other Pages 443 Notes CI: Copyright (c) 2011; JID: 8412849; 0 (Bacterial Proteins); 0 (DNA Primers); 0 (DNA, Bacterial); 0 (RNA, Ribosomal, 16S); 2010/10/06 [received]; 2010/12/13 [revised]; 2011/01/08 [accepted]; 2011/01/18 [aheadofprint]; ppublish Place of Publication Netherlands ISSN/ISBN 1879-3460; 0168-1605 Accession Number PMID: 21296447 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.ijfoodmicro.2011.01.015 [doi] Output Language Unknown(0) PMID 21296447 Abstract An extensive use of Weissella (W.) confusa is currently being made for the production of a variety of fermented foods and beverages although some strains of this species have emerged as opportunistic pathogens for humans and animals. Nevertheless, no rapid methods are available for the reliable identification of W. confusa. We developed a novel PCR using AFLP (Amplified Fragment Length Polymorphism)-derived primers for the rapid and unequivocal identification of W. confusa. Fluorescent AFLP of 30 strains of W. confusa, Leuconostoc citreum, Lactobacillus (Lb.) brevis, Lb. rossiae, Lb. plantarum and Lb. buchneri allowed us to detect, purify and sequence several W. confusa specific AFLP fragments. The homology search in BLAST of a 303 bp nucleotide sequence revealed a = 77% identity of the purified fragment with the lepA gene of several lactic acid bacteria. A PCR assay targeting 225 bp of this fragment was developed and tested against the DNA of 109 strains, including 34 foodborne and clinical W. confusa and 75 strains of 47 phylogenetically closely and distantly related species, resulting in 100% specificity with a detection limit of 16 pg. Being the first species-specific PCR to date developed for the rapid and unambiguous identification of W. confusa, this novel assay could be a reliable and efficient tool for detecting W. confusa not only in food and beverages, but also in clinical specimens, thus contributing to clarify its real significance in human and animal infections. Descriptors Links Book Title Database Publisher Elsevier B.V Data Source Authors Fusco,V., Quero,G.M., Stea,G., Morea,M., Visconti,A. Original/Translated Title URL Date of Electronic 20110118 PMCID Editors
Phenotypic and genotypic analyses of lactic acid bacteria in local fermented food, breast milk and faeces of mothers and their babies	2011	Lehrstuhl fur Technische Mikrobiologie, Technische Universitat Munchen, Weihenstephaner Steig 16, 85350 Freising, Germany.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Systematic and applied microbiology Periodical, Abbrev. Syst.Appl.Microbiol. Pub Date Free Form Apr Volume 34 Issue 2 Start Page 148 Other Pages 155 Notes CI: Copyright (c) 2011; JID: 8306133; 2010/11/05 [received]; 2010/12/20 [revised]; 2010/12/21 [accepted]; ppublish Place of Publication Germany ISSN/ISBN 1618-0984; 0723-2020 Accession Number PMID: 21300508 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.syapm.2010.12.001 [doi] Output Language Unknown(0) PMID 21300508 Abstract Lactic acid bacteria (LAB) are generally accepted as beneficial to the host and their presence is directly influenced by ingestion of fermented food or probiotics. While the intestinal lactic microbiota is well-described knowledge on its routes of inoculation and competitiveness towards selective pressure shaping the intestinal microbiota is limited. In this study, LAB were isolated from faecal samples of breast feeding mothers living in Syria, from faeces of their infants, from breast milk as well as from fermented food, typically consumed in Syria. A total of 700 isolates were characterized by genetic fingerprinting with random amplified polymorphic DNA (RAPD) and identified by comparative 16S rDNA sequencing and Matrix Assisted Laser Desorption Ionization-Time-Of-Flight Mass Spectrometry (MALDI-TOF-MS) analyses. Thirty six different species of Lactobacillus, Enterococcus, Streptococcus, Weissella and Pediococcus were identified. RAPD and MALDI-TOF-MS patterns allowed comparison of the lactic microbiota on species and strain level. Whereas some species were unique for one source, Lactobacillus plantarum, Lactobacillus fermentum, Pediococcus pentosaceus and Lactobacillus brevis were found in all sources. Interestingly, identical RAPD genotypes of L. plantarum, L. fermentum, L. brevis, Enterococcus faecium, Enterococcus faecalis and P. pentosaceus were found in the faeces of mothers, her milk and in faeces of her babies. Diversity of RAPD types found in food versus human samples suggests the importance of host factors in colonization and individual host specificity, and support the hypothesis that there is a vertical transfer of intestinal LAB from the mother's gut to her milk and through the milk to the infant's gut. Descriptors Links Book Title Database Publisher Elsevier GmbH Data Source Authors Albesharat,R., Ehrmann,M.A., Korakli,M., Yazaji,S., Vogel,R.F. Original/Translated Title URL Date of Electronic PMCID Editors
Electropolymerized multiwalled carbon nanotubes/polypyrrole fiber for solid-phase microextraction and its applications in the determination of pyrethroids	2011	Department of Chemistry and Environment Engineering, Wuyi University, Fujian 354300, China.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Talanta Periodical, Abbrev. Talanta Pub Date Free Form 15-Mar Volume 84 Issue 1 Start Page 104 Other Pages 108 Notes LR: 20131121; CI: Copyright (c) 2011; JID: 2984816R; 0 (Nanotubes, Carbon); 0 (Polymers); 0 (Pyrethrins); 0 (Pyrroles); 059QF0KO0R (Water); 12597-68-1 (Stainless Steel); 30604-81-0 (polypyrrole); 2010/09/14 [received]; 2010/12/07 [revised]; 2010/12/17 [ac Place of Publication England ISSN/ISBN 1873-3573; 0039-9140 Accession Number PMID: 21315905 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.talanta.2010.12.027 [doi] Output Language Unknown(0) PMID 21315905 Abstract A novel solid-phase microextraction (SPME) fiber coated with multiwalled carbon nanotubes/polypyrrole (MWCNTs/Ppy) was prepared with an electrochemical method and used for the extraction of pyrethroids in natural water samples. The results showed that the MWCNTs/Ppy coated fiber had high organic stability, and remarkable acid and alkali resistance. In addition, the MWCNTs/Ppy coated fiber was more effective and superior to commercial PDMS and PDMS/DVD fibers in extracting pyrethroids in natural water samples. Under optimized conditions, the calibration curves were found to be linear from 0.001 to 10 mug mL(-1) for five of the six pyrethroids studied, the exception being fenvalerate (which was from 0.005 to 10 mug mL(-1)), and detection limits were within the range 0.12-0.43 ng mL(-1). The recoveries of the pyrethroids spiked in water samples at 10 ng mL(-1) ranged from 83 to 112%. Descriptors Links Book Title Database Publisher Elsevier B.V Data Source Authors Chen,L., Chen,W., Ma,C., Du,D., Chen,X. Original/Translated Title URL Date of Electronic 20101229 PMCID Editors
Comparative analysis of waterpipe and cigarette suppression of abstinence and craving symptoms	2011	Syrian Center for Tobacco Studies, Aleppo, Syria.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Addictive Behaviors Periodical, Abbrev. Addict.Behav. Pub Date Free Form May Volume 36 Issue 5 Start Page 555 Other Pages 559 Notes LR: 20151119; CI: Copyright (c) 2011; GR: CA120142/CA/NCI NIH HHS/United States; GR: DA024876/DA/NIDA NIH HHS/United States; GR: R01 DA024876/DA/NIDA NIH HHS/United States; GR: R01 DA024876-04/DA/NIDA NIH HHS/United States; JID: 7603486; 6M3C89ZY6R (Nicot Place of Publication England ISSN/ISBN 1873-6327; 0306-4603 Accession Number PMID: 21316156 Language eng SubFile Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural; IM DOI 10.1016/j.addbeh.2011.01.021 [doi] Output Language Unknown(0) PMID 21316156 Abstract This study's objective is to examine the relative effectiveness of cigarettes and waterpipe (WP) in reducing tobacco abstinence symptoms in dual cigarette/WP smokers. Sixty-one dual cigarette/WP smokers participated (mean age+/-SD 22.0+/-2.6 year; mean cigarettes/day 22.4+/-10.1; mean WPs/week 5.2+/-5.6). After 12-hour abstinence participants completed two smoking sessions (WP or cigarette), while they responded to subjective measures of withdrawal, craving, and nicotine effects administered before smoking and 5, 15, 30 and 45 min thereafter. For both tobacco use methods, scores on measures of withdrawal and craving were high at the beginning of session (i.e., before smoking) and were reduced significantly and comparably during smoking. Analysis of smoking and recovery (post-smoking) phases showed similarity in the way both tobacco use methods suppressed withdrawal and craving, but the recovery of some of these symptoms can be faster with cigarette use. This study is the first to show the ability of WP to suppress abstinence effects comparably to cigarettes, and its potential to thwart cigarette cessation. Descriptors Links Book Title Database Publisher Elsevier Ltd Data Source Authors Rastam,S., Eissenberg,T., Ibrahim,I., Ward,K.D., Khalil,R., Maziak,W. Original/Translated Title URL Date of Electronic 20110120 PMCID PMC3061840 Editors
A new approach based on a combination of direct and headspace cold-fiber solid-phase microextraction modes in the same procedure for the determination of polycyclic aromatic hydrocarbons and phthalate esters in soil samples	2011	Departamento de Quimica, Universidade Federal de Santa Catarina, Florianopolis, SC 88040-900, Brazil.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of chromatography.A Periodical, Abbrev. J.Chromatogr.A Pub Date Free Form 1-Apr Volume 1218 Issue 13 Start Page 1707 Other Pages 1714 Notes LR: 20151119; CI: Copyright (c) 2011; JID: 9318488; 0 (Phthalic Acids); 0 (Polycyclic Hydrocarbons, Aromatic); 0 (Soil); 451W47IQ8X (Sodium Chloride); 2010/11/19 [received]; 2011/01/21 [revised]; 2011/01/24 [accepted]; 2011/01/31 [aheadofprint]; ppublish Place of Publication Netherlands ISSN/ISBN 1873-3778; 0021-9673 Accession Number PMID: 21316689 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1016/j.chroma.2011.01.074 [doi] Output Language Unknown(0) PMID 21316689 Abstract This study describes a new approach to cold-fiber solid-phase microextraction (CF-SPME) based on a combination of different extraction modes in the same extraction procedure. Also, the high quantity of water required to facilitate both the desorption of analytes from the matrix and their transport to the fiber coating is reported. The extraction mode was changed from the direct to the headspace mode in a single extraction while manipulating the extraction times and coating temperature to improve the extraction of compounds with different volatilities. Compounds with low volatility were better extracted in the direct mode, while the headspace mode was more appropriate for volatile compounds. Polycyclic aromatic hydrocarbons (PAHs) and phthalic acid esters (PEs) in sand or soil samples were used as model compounds and matrices in this study. The optimized conditions were: sample pH in the range of 4-7, addition of 12 mL of 194 g L(-1) aqueous NaCl solution in a 15 mL vial, and 80 min total extraction time with a sample temperature of 90 degrees C (50 min in direct mode with coating at 90 degrees C followed by 30 min in headspace mode with coating at 30 degrees C). The proposed procedure was compared with conventional CF-SPME (with and without addition of water) and was found to be more effective for all the analytes, since it is capable of extracting both heavier and lighter compounds from soil samples in a single extraction procedure. The use of an excess of water and a combination of extraction modes in the same CF-SPME procedure are the main factors responsible for this enhancement. The proposed method was applied to the extraction of PAHs and PEs in spiked soil samples and excellent results were obtained for most of the compounds evaluated. Descriptors Links Book Title Database Publisher Elsevier B.V Data Source Authors Martendal,E., Carasek,E. Original/Translated Title URL Date of Electronic 20110131 PMCID Editors

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