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Dominance of CTX-M-type extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli isolated from patients with community-onset and hospital-onset infection in China 2014 State Key Laboratory of Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.; Department of Clinical Laboratory, Peking Union Medical College Hospital, Beijing, China.; State Key Laboratory of Respiratory D
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
PloS one
Periodical, Abbrev.
PLoS One
Pub Date Free Form
1-Jul
Volume
9
Issue
7
Start Page
e100707
Other Pages
Notes
JID: 101285081; 0 (Escherichia coli Proteins); EC 3.5.2.6 (beta-Lactamases); OID: NLM: PMC4077569; 2014 [ecollection]; 2014/01/17 [received]; 2014/05/28 [accepted]; 2014/07/01 [epublish]; epublish
Place of Publication
United States
ISSN/ISBN
1932-6203; 1932-6203
Accession Number
PMID: 24983621
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1371/journal.pone.0100707 [doi]
Output Language
Unknown(0)
PMID
24983621
Abstract
OBJECTIVE: To investigate CTX-M genotypes among extended-spectrum beta-lactamase-producing Escherichia coli (ESBL-EC) isolated from patients with community-onset and hospital-onset infections in China, their clonality and the distribution of CTX-M variants in different specimens of community-onset and hospital-onset infections. METHODS: ESBL-EC isolates were collected from general hospitals from 2011 to 2012 in China. Broth microdilution method antimicrobial susceptibility testing of 16 antibiotics was performed. Clinical data from community-onset and hospital-onset infections due to ESBL-EC were analyzed. ESBL-encoding genes were amplified by PCR and sequenced, and multilocus sequence typing (MLST) was performed for a random selection of predominant CTX-M type strains identified. RESULTS: A total of 1,168 ESBL-EC isolates were obtained from various clinical specimens, 41.7% of which were responsible for causing community-onset infections. The presence of urinary calculi was higher in community-onset infections, whereas malignancy, cardiovascular and cerebrovascular diseases, dementia, chronic renal disease, diabetes mellitus and surgical treatment were found to have higher proportions in hospital-onset infections. There was no significant difference in trauma between community-onset and hospital-onset infections. 96.2% of the isolates were detected to harbor blaCTX-M genes. blaCTX-M-1 group and blaCTX-M-9 group were detected at 40.7% and 48.7% respectively, and both positive group accounted for 10.6%. blaCTX-M-55 (24.8%) and blaCTX-M-15 (18.2%) were the major genotypes in blaCTX-M-1 group while blaCTX-M-14 (46.8%) was predominant in blaCTX-M-9 group. A comparison of blaCTX-M distribution in different specimens between ESBL-EC causing community-onset and hospital-onset infection showed no significant difference. A total of 229 isolates were tested for MLST. ST131 (14%) was the predominant type. ST648, ST405 and ST1193 were also detected. CONCLUSIONS: Community-onset ESBL-EC has emerged as a common pathogen in China. CTX-M-14 is the most commonly encountered, CTX-M-55 and CTX-M-15 have spread rapidly. ST131 is the predominant clonal group, and the great diversity of CTX-M-producing isolates of E. coli has emerged in China.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Xia,S., Fan,X., Huang,Z., Xia,L., Xiao,M., Chen,R., Xu,Y., Zhuo,C.
Original/Translated Title
URL
Date of Electronic
20140701
PMCID
PMC4077569
Editors
Benzene homologues in environmental matrixes from a pesticide chemical region in China: Occurrence, health risk and management 2014 State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. Electronic address: wangty@rcees.ac.cn.; State Key Laboratory of Urban and Regional Ecology, Research C
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Ecotoxicology and environmental safety
Periodical, Abbrev.
Ecotoxicol.Environ.Saf.
Pub Date Free Form
Jun
Volume
104
Issue
Start Page
357
Other Pages
364
Notes
CI: Copyright (c) 2014; JID: 7805381; 0 (Air Pollutants); 0 (Benzene Derivatives); 0 (Dust); 0 (Environmental Pollutants); 0 (Pesticides); 0 (Soil); 0 (Xylenes); 059QF0KO0R (Water); 3FPU23BG52 (Toluene); J64922108F (Benzene); L5I45M5G0O (ethylbenzene); OT
Place of Publication
United States
ISSN/ISBN
1090-2414; 0147-6513
Accession Number
PMID: 24736026
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1016/j.ecoenv.2014.01.035 [doi]
Output Language
Unknown(0)
PMID
24736026
Abstract
The contamination status and health risks of benzene, toluene, ethylbenzene and xylene (BTEX) in air, soil, dust and groundwater were evaluated in a pesticide chemical region located in Hebei province, China. The concentrations of BTEX in air ranged from 7.80 to 238ug/m(3) and those in soil and dust ranged from lower than limit of detection (LOD) to 32,360ng/g dw, and those in groundwater varied from 2.68 to 98.6ug/L. Generally, the levels of BTEX in multimedia matrixes were all below the standards established in China. Health risk assessment was performed based on the monitoring data via inhalation, dermal contact and ingestion pathways and hazard quotient (HQ) was calculated to be on the order of 10(-7), below 10(-6), and Hazard index (HI) levels of BTEX were lower than 1.0. However, both HQ and HI ascended with an increase in work experience/exposure. Integrated risk management was proposed to eliminate BTEX pollution and to protect occupational health of workers in those industries.
Descriptors
Links
Book Title
Database
Publisher
Elsevier Inc
Data Source
Authors
Wang,T., Bo,P., Bing,T., Zhaoyun,Z., Liyu,D., Yonglong,L.
Original/Translated Title
URL
Date of Electronic
20140415
PMCID
Editors
Characterization of extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli obtained from Danish pigs, pig farmers and their families from farms with high or no consumption of third- or fourth-generation cephalosporins 2014 Statens Serum Institut, Copenhagen, Denmark ama@ssi.dk.; Statens Serum Institut, Copenhagen, Denmark.; National Food Institute, Technical University of Denmark, Soborg, Denmark.; Statens Serum Institut, Copenhagen, Denmark.; Statens Serum Institut, Copenh
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
The Journal of antimicrobial chemotherapy
Periodical, Abbrev.
J.Antimicrob.Chemother.
Pub Date Free Form
Oct
Volume
69
Issue
10
Start Page
2650
Other Pages
2657
Notes
CI: (c) The Author 2014; JID: 7513617; 0 (Anti-Bacterial Agents); 0 (Cephalosporins); EC 3.5.2.6 (beta-Lactamases); OTO: NOTNLM; 2014/06/07 [aheadofprint]; ppublish
Place of Publication
England
ISSN/ISBN
1460-2091; 0305-7453
Accession Number
PMID: 24908045
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1093/jac/dku180 [doi]
Output Language
Unknown(0)
PMID
24908045
Abstract
OBJECTIVES: To compare and characterize extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli from pigsties, pig farmers and their families on farms with previous high or no use of third- or fourth-generation cephalosporins. METHODS: Twenty farms with no third- or fourth-generation cephalosporin use and 19 herds with previous frequent use were included. The ESBL-producing isolates detected in humans and pigs were characterized by ESBL genotype, PFGE, susceptibility to non-beta-lactam antibiotics and phylotype, and selected isolates were characterized by multilocus sequence typing (MLST). Furthermore, transferability of bla(CTX-M-)1 from both human and pig isolates was studied and plasmid incompatibility groups were defined. The volunteers answered a questionnaire including epidemiological risk factors for carriage of ESBL-producing E. coli. RESULTS: ESBL-producing E. coli was detected in pigs on 79% of the farms with high consumption of cephalosporins compared with 20% of the pigs on farms with no consumption. ESBL-producing E. coli was detected in 19 of the 195 human participants and all but one had contact with pigs. The genes found in both humans and pigs at the same farms were blaCTX-M-1 (eight farms), bla(CTX-M-14) (one farm) and bla(SHV-12) (one farm). At four farms ESBL-producing E. coli isolates with the same CTX-M enzyme, phylotype, PFGE type and MLST type were detected in both pigs and farmers. The majority of the plasmids with bla(CTX-M-1) were transferable by conjugation and belonged to incompatibility group IncI1, IncF, or IncN. CONCLUSIONS: The present study shows an increased frequency of ESBL-producing E. coli on farms with high consumption of third- or fourth-generation cephalosporins and indicates transfer of either ESBL-producing E. coli or plasmids between pigs and farmers.
Descriptors
Links
Book Title
Database
Publisher
. Published by Oxford University Press on behalf of the British Society for Antimicrobial Chemotherapy
Data Source
Authors
Hammerum,A.M., Larsen,J., Andersen,V.D., Lester,C.H., Skovgaard Skytte,T.S., Hansen,F., Olsen,S.S., Mordhorst,H., Skov,R.L., Aarestrup,F.M., Agerso,Y.
Original/Translated Title
URL
Date of Electronic
20140607
PMCID
Editors
Genome-wide association studies in oesophageal adenocarcinoma and Barrett's oesophagus: a large-scale meta-analysis 2016 Statistical Genetics, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia. Electronic address: Puya.Gharahkhani@qimrberghofer.edu.au.; Medical Research Council (MRC) Cancer Unit, Hutchison-MRC Research Centre and University of Cambridge, C
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
The Lancet.Oncology
Periodical, Abbrev.
Lancet Oncol.
Pub Date Free Form
12-Aug
Volume
Issue
Start Page
Other Pages
Notes
LR: 20160816; CI: Copyright (c) 2016; JID: 100957246; 2016/04/20 [received]; 2016/05/25 [revised]; 2016/06/07 [accepted]; aheadofprint
Place of Publication
ISSN/ISBN
1474-5488; 1470-2045
Accession Number
PMID: 27527254
Language
ENG
SubFile
JOURNAL ARTICLE
DOI
S1470-2045(16)30240-6 [pii]
Output Language
Unknown(0)
PMID
27527254
Abstract
BACKGROUND: Oesophageal adenocarcinoma represents one of the fastest rising cancers in high-income countries. Barrett's oesophagus is the premalignant precursor of oesophageal adenocarcinoma. However, only a few patients with Barrett's oesophagus develop adenocarcinoma, which complicates clinical management in the absence of valid predictors. Within an international consortium investigating the genetics of Barrett's oesophagus and oesophageal adenocarcinoma, we aimed to identify novel genetic risk variants for the development of Barrett's oesophagus and oesophageal adenocarcinoma. METHODS: We did a meta-analysis of all genome-wide association studies of Barrett's oesophagus and oesophageal adenocarcinoma available in PubMed up to Feb 29, 2016; all patients were of European ancestry and disease was confirmed histopathologically. All participants were from four separate studies within Europe, North America, and Australia and were genotyped on high-density single nucleotide polymorphism (SNP) arrays. Meta-analysis was done with a fixed-effects inverse variance-weighting approach and with a standard genome-wide significance threshold (p
Descriptors
Links
Book Title
Database
Publisher
The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY license. Published by Elsevier Ltd.. All rights reserved
Data Source
Authors
Gharahkhani,P., Fitzgerald,R.C., Vaughan,T.L., Palles,C., Gockel,I., Tomlinson,I., Buas,M.F., May,A., Gerges,C., Anders,M., Becker,J., Kreuser,N., Noder,T., Venerito,M., Veits,L., Schmidt,T., Manner,H., Schmidt,C., Hess,T., Bohmer,A.C., Izbicki,J.R., Holscher,A.H., Lang,H., Lorenz,D., Schumacher,B., Hackelsberger,A., Mayershofer,R., Pech,O., Vashist,Y., Ott,K., Vieth,M., Weismuller,J., Nothen,M.M., Barrett's and Esophageal Adenocarcinoma Consortium (BEACON), Esophageal Adenocarcinoma GenEtics Consortium (EAGLE), Wellcome Trust Case Control Consortium 2 (WTCCC2), Attwood,S., Barr,H., Chegwidden,L., de Caestecker,J., Harrison,R., Love,S.B., MacDonald,D., Moayyedi,P., Prenen,H., Watson,R.G., Iyer,P.G., Anderson,L.A., Bernstein,L., Chow,W.H., Hardie,L.J., Lagergren,J., Liu,G., Risch,H.A., Wu,A.H., Ye,W., Bird,N.C., Shaheen,N.J., Gammon,M.D., Corley,D.A., Caldas,C., Moebus,S., Knapp,M., Peters,W.H., Neuhaus,H., Rosch,T., Ell,C., MacGregor,S., Pharoah,P., Whiteman,D.C., Jankowski,J., Schumacher,J.
Original/Translated Title
URL
Date of Electronic
20160812
PMCID
Editors
Soil solution chemistry in a southeast Alaska spodosol suggests positively charged organic compounds 1984 Stednick, J.D., Department of Earth Resources, Colorado State University, Fort Collins, CO 80523
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Water, air, and soil pollution
Periodical, Abbrev.
Water Air Soil Pollut.
Pub Date Free Form
1984/10
Volume
23
Issue
3
Start Page
263
Other Pages
269
Notes
Place of Publication
ISSN/ISBN
0049-6979
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Soil solution chemistry was sampled for 2 yr in a mature Sitka spruce - western hemlock (Picea sitchensis (Bong) Carr. Tsuga heterophylla (Raf.) Sarg) forest on a Dystric Cryandept (Spodosol) soil. Electroneutrality balances indicated a cation deficit at all soil solution sampling points. Calculated soil solution electrical conductivity was less than measured electrical conductivity, with differences greater than expected measurement errors. Soil solutions and streamflow were colored by organics, as measured by P.C.U.s. It is suggested that organic acids or other organic compounds may be positively charged in northern Spodosols.
Descriptors
organic compound, leaching, nonhuman, priority journal, soil, theoretical study
Links
Book Title
Database
Embase
Publisher
Data Source
Embase
Authors
Stednick,J. D.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Diarrhoea following contamination of drinking water with copper. 1999 Stenhammar, L., Department of Paediatrics, Linköping University, Norrköping Hospital, S-601 82 Norrköping, Sweden.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
European journal of medical research
Periodical, Abbrev.
Eur.J.Med.Res.
Pub Date Free Form
/
Volume
4
Issue
6
Start Page
217
Other Pages
218
Notes
Place of Publication
ISSN/ISBN
0949-2321
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
Three cases of children with suspected copper intoxication from the drinking water are described.The children presented with protracted diarrhoea, which promptly disappeared, when they were given drinking water of low copper concentration but reappeared when given their domestic water. It is concluded that the use of copper tubing in the water pipes may under certain circumstances result in the presence of copper in the drinking water and the risk of intoxication, especially in small children.
Descriptors
copper, article, blood, case report, chemically induced disorder, diarrhea, drinking, female, human, infant, male, metabolism, preschool child, sanitation, Sweden, urine, water pollutant, water supply
Links
Book Title
Database
MEDLINE
Publisher
Data Source
Embase
Authors
Stenhammar,L.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Trends in socioeconomic inequalities in smoking prevalence, consumption, initiation, and cessation between 2001 and 2008 in the Netherlands. Findings from a national population survey 2012 STIVORO Dutch Expert Centre on Tobacco Control, PO Box 16070, 2500 BB, The Hague, the Netherlands. gnagelhout@stivoro.nl
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
BMC public health
Periodical, Abbrev.
BMC Public Health
Pub Date Free Form
18-May
Volume
12
Issue
Start Page
303
Other Pages
2458-12-303
Notes
LR: 20151119; JID: 100968562; OID: NLM: PMC3356226; 2012/02/03 [received]; 2012/04/26 [accepted]; 2012/05/18 [aheadofprint]; epublish
Place of Publication
England
ISSN/ISBN
1471-2458; 1471-2458
Accession Number
PMID: 22537139
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1186/1471-2458-12-303 [doi]
Output Language
Unknown(0)
PMID
22537139
Abstract
BACKGROUND: Widening of socioeconomic status (SES) inequalities in smoking prevalence has occurred in several Western countries from the mid 1970's onwards. However, little is known about a widening of SES inequalities in smoking consumption, initiation and cessation. METHODS: Repeated cross-sectional population surveys from 2001 to 2008 (n approximately 18,000 per year) were used to examine changes in smoking prevalence, smoking consumption (number of cigarettes per day), initiation ratios (ratio of ever smokers to all respondents), and quit ratios (ratio of former smokers to ever smokers) in the Netherlands. Education level and income level were used as indicators of SES and results were reported separately for men and women. RESULTS: Lower educated respondents were significantly more likely to be smokers, smoked more cigarettes per day, had higher initiation ratios, and had lower quit ratios than higher educated respondents. Income inequalities were smaller than educational inequalities and were not all significant, but were in the same direction as educational inequalities. Among women, educational inequalities widened significantly between 2001 and 2008 for smoking prevalence, smoking initiation, and smoking cessation. Among low educated women, smoking prevalence remained stable between 2001 and 2008 because both the initiation and quit ratio increased significantly. Among moderate and high educated women, smoking prevalence decreased significantly because initiation ratios remained constant, while quit ratios increased significantly. Among men, educational inequalities widened significantly between 2001 and 2008 for smoking consumption only. CONCLUSIONS: While inequalities in smoking prevalence were stable among Dutch men, they increased among women, due to widening inequalities in both smoking cessation and initiation. Both components should be addressed in equity-oriented tobacco control policies.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Nagelhout,G.E., de Korte-de Boer,D., Kunst,A.E., van der Meer,R.M., de Vries,H., van Gelder,B.M., Willemsen,M.C.
Original/Translated Title
URL
Date of Electronic
20120518
PMCID
PMC3356226
Editors
Smoking cessation interventions for smokers with current or past depression 2013 STIVORO, Dutch Expert Centre on Tobacco Control, The Hague, Netherlands.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
The Cochrane database of systematic reviews
Periodical, Abbrev.
Cochrane Database Syst.Rev.
Pub Date Free Form
21-Aug
Volume
(8):CD006102. doi
Issue
8
Start Page
CD006102
Other Pages
Notes
LR: 20160602; JID: 100909747; 0 (Antidepressive Agents, Second-Generation); 01ZG3TPX31 (Bupropion); CIN: Evid Based Ment Health. 2014 May;17(2):e3. PMID: 24591546; epublish
Place of Publication
England
ISSN/ISBN
1469-493X; 1361-6137
Accession Number
PMID: 23963776
Language
eng
SubFile
Journal Article; Meta-Analysis; Research Support, Non-U.S. Gov't; Review; IM
DOI
10.1002/14651858.CD006102.pub2 [doi]
Output Language
Unknown(0)
PMID
23963776
Abstract
BACKGROUND: Individuals with current or past depression are often smokers who are more nicotine dependent, more likely to suffer from negative mood changes after nicotine withdrawal, and more likely to relapse to smoking after quitting than the general population, which contributes to their higher morbidity and mortality from smoking-related illnesses. It remains unclear what interventions can help them to quit smoking. OBJECTIVES: To evaluate the effectiveness of smoking cessation interventions, with and without specific mood management components, in smokers with current or past depression. SEARCH METHODS: In April 2013, we searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, PsycINFO, other reviews, and asked experts for information on trials. SELECTION CRITERIA: Criteria for including studies in this review were that they had to be randomised controlled trials (RCTs) comparing smoking cessation interventions in adult smokers with current or past depression. Depression was defined as major depression or depressive symptoms. We included studies where subgroups of participants with depression were identified, either pre-stated or post hoc. The outcome was abstinence from smoking after six months or longer follow-up. We preferred prolonged or continuous abstinence and biochemically validated abstinence where available. DATA COLLECTION AND ANALYSIS: When possible, we estimated pooled risk ratios (RRs) with the Mantel-Haenszel method (fixed-effect model). We also performed subgroup analyses, by length of follow-up, depression measurement, depression group in study, antidepressant use, published or unpublished data, format of intervention, level of behavioural support, additional pharmacotherapy, type of antidepressant medication, and additional nicotine replacement therapy (NRT). MAIN RESULTS: Forty-nine RCTs were included of which 33 trials investigated smoking cessation interventions with specific mood management components for depression. In smokers with current depression, meta-analysis showed a significant positive effect for adding psychosocial mood management to a standard smoking cessation intervention when compared with standard smoking cessation intervention alone (11 trials, N = 1844, RR 1.47, 95% CI 1.13 to 1.92). In smokers with past depression we found a similar effect (13 trials, N = 1496, RR 1.41, 95% CI 1.13 to 1.77). Meta-analysis resulted in a positive effect, although not significant, for adding bupropion compared with placebo in smokers with current depression (5 trials, N = 410, RR 1.37, 95% CI 0.83 to 2.27). There were not enough trial data to evaluate the effectiveness of fluoxetine and paroxetine for smokers with current depression. Bupropion (4 trials, N = 404, RR 2.04, 95% CI 1.31 to 3.18) might significantly increase long-term cessation among smokers with past depression when compared with placebo, but the evidence for bupropion is relatively weak due to the small number of studies and the post hoc subgroups for all the studies. There were not enough trial data to evaluate the effectiveness of fluoxetine, nortriptyline, paroxetine, selegiline, and sertraline in smokers with past depression.Twenty-three of the 49 trials investigated smoking cessation interventions without specific components for depression. There was heterogeneity between the trials which compared psychosocial interventions with standard smoking cessation counselling for both smokers with current and past depression. Therefore, we did not estimate a pooled effect. One trial compared nicotine replacement therapy (NRT) versus placebo in smokers with current depression and found a positive, although not significant, effect (N = 196, RR 2.64, 95% CI 0.93 to 7.45). Meta-analysis also found a positive, although not significant, effect for NRT versus placebo in smokers with past depression (3 trials, N = 432, RR 1.17, 95% CI 0.85 to 1.60). Three trials compared other pharmacotherapy versus placebo and six tr
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
van der Meer,R.M., Willemsen,M.C., Smit,F., Cuijpers,P.
Original/Translated Title
URL
Date of Electronic
20130821
PMCID
Editors
Trajectories of smokeless tobacco use and of cigarette smoking in a cohort of Swedish adolescents: differences and implications 2008 Stockholm Center for Public Health - Tobacco Prevention, Stockholm County Council, Stockholm, Sweden. ingvar.rosendahl.sll.se
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
Jun
Volume
10
Issue
6
Start Page
1021
Other Pages
1027
Notes
LR: 20090217; JID: 9815751; ppublish
Place of Publication
England
ISSN/ISBN
1462-2203; 1462-2203
Accession Number
PMID: 18584465
Language
eng
SubFile
Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1080/14622200802097522 [doi]
Output Language
Unknown(0)
PMID
18584465
Abstract
Developmental trajectories of cigarette smoking have often been described, but there are no such analyses dealing with smokeless tobacco use. A semi-parametric group-based mixture modeling procedure was used to determine the development of smokeless tobacco (snus) use, as well as of cigarette smoking, over time in a cohort of 2,175 Swedish adolescents who were never-users of tobacco at the time of recruitment. An indicator of snus and of cigarette consumption in the previous year was used to model the development of the behavior between 11 and 18 years of age. For snus use three trajectories best described the cohort's experience, while four trajectories provided the best description of cigarette smoking in the cohort. For both tobacco types there were two escalation patterns and one sustained trial trajectory, while an extinction pattern was apparent for cigarette smoking only. Marked sex differences were found, since rapid escalation for snus use was found only among males while high consumption of cigarettes was observed only among females. Dual users (54.9% of all users) showed a trajectory of steeper and more prolonged increase of tobacco consumption than exclusive users of either snus or cigarettes. Several risk factors for tobacco use measured at baseline influenced individual probabilities of belonging to a particular trajectory. The developmental patterns of snus use and cigarette smoking showed high similarity, but they evolved differently in the two sexes. Dual users emerged as a high-risk group for tobacco dependence and tobacco-related harms.
Descriptors
Adolescent, Adolescent Behavior, Confidence Intervals, Cross-Sectional Studies, Female, Health Knowledge, Attitudes, Practice, Humans, Life Style, Male, Odds Ratio, Peer Group, Prevalence, Risk Factors, Risk-Taking, Smoking/epidemiology/psychology, Smoking Cessation/methods, Social Environment, Students/psychology/statistics & numerical data, Sweden/epidemiology, Tobacco Use Disorder/epidemiology/prevention & control, Tobacco, Smokeless
Links
Book Title
Database
Publisher
Data Source
Authors
Rosendahl,K. I., Galanti,M. R., Gilljam,H.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Technical note: a double L intestinal cannula for cattle. 1991 Streeter, M.N., Oklahoma State University, Stillwater 74078-0425.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of animal science
Periodical, Abbrev.
J.Anim.Sci.
Pub Date Free Form
/
Volume
69
Issue
6
Start Page
2601
Other Pages
2607
Notes
Place of Publication
ISSN/ISBN
0021-8812
Accession Number
Language
SubFile
DOI
Output Language
Unknown(0)
PMID
Abstract
A double L-shaped intestinal cannula was developed in an attempt to overcome problems observed previously with simple T-type cannulas. The cannula was constructed from cyclopolyvinyl chloride water pipe fittings. Construction materials were fairly rigid, but by connecting the split cannula pieces with elastic castration bands the cannula had some flexibility. Placing a short cone over the exposed cannula barrel reduced mechanical damage to the intestine. The double L cannula required a much smaller incision in the intestine during surgical insertion than a T-type cannula; it also simplified replacement. Construction is described; use and performance of the cannula has been satisfactory.
Descriptors
animal, animal disease, article, catheterization, bovine, digestion, duodenum, eating, female, ileum, intestine, laboratory diagnosis, male, physiology, weight gain
Links
Book Title
Database
MEDLINE
Publisher
Data Source
Embase
Authors
Streeter,M. N., Barron,S. J., Wagner,D. G., Hibberd,C. A., Owens,F. N., McCollum,F. T.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors