WTS database

Title	Pub Year Sort ascending	Author	SearchLink
Drinking water contaminants from epoxy resin-coated pipes: A field study	2016	Masaryk University, Faculty of Science, Research Centre for Toxic Compounds in the Environment (RECETOX), Kamenice 753/5, Pavillion A29, 625 00, Brno, Czech Republic. Electronic address: johanna.rajasarkka@gmail.com.; Masaryk University, Faculty of Scienc	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Water research Periodical, Abbrev. Water Res. Pub Date Free Form 15-Jul Volume 103 Issue Start Page 133 Other Pages 140 Notes LR: 20160722; CI: Copyright (c) 2016; JID: 0105072; OTO: NOTNLM; 2016/05/20 [received]; 2016/06/22 [revised]; 2016/07/11 [accepted]; aheadofprint Place of Publication ISSN/ISBN 1879-2448; 0043-1354 Accession Number PMID: 27448038 Language ENG SubFile JOURNAL ARTICLE DOI S0043-1354(16)30531-0 [pii] Output Language Unknown(0) PMID 27448038 Abstract Rehabilitation of aged drinking water pipes is an extensive renovation and increasingly topical in many European cities. Spray-on-lining of drinking water pipes is an alternative cost-effective rehabilitation technology in which the insides of pipes are relined with organic polymer. A commonly used polymer is epoxy resin consisting of monomer bisphenol A (BPA). Leaching of BPA from epoxy lining to drinking water has been a concern among public and authorities. Currently epoxy lining is not recommended in some countries. BPA leaching has been demonstrated in laboratory studies but the behavior and ageing process of epoxy lining in situ is not well known. In this study 6 locations with different age epoxy linings of drinking water pipes done using two distinct technologies were studied. While bisphenol F, 4-n-nonylphenol, and 4-t-octylphenol were rarely found and in trace concentrations, BPA was detected in majority of samples. Pipes lined with the older technology (LSE) leached more BPA than those with more recent technology (DonPro): maxima in cold water were 0.25 mug/L and 10 ng/L, respectively. Incubation of water in pipes 8-10 h prior to sampling increased BPA concentration in cold water 1.1-43-fold. Hot water temperature caused even more BPA leaching - at maximum 23.5 mug/L. The influence of ageing of epoxy lining on BPA leaching on could be shown in case of LSE technology: locations with 8-9 years old lining leached 4-20-fold more BPA compared to a location with 2-year-old lining. Analysis of metals showed that epoxy lining can reduce especially iron concentration in water. No significant burden to water could be shown by the analyzed 72 volatile organic compounds, including epichlorhydrin, precursor used in epoxy resin. Estrogenicity was detected in water samples with the highest BPA loads. Comparable responses of two yeast bioreporters (estrogen receptor alpha and BPA-targeted) indicated that bisphenol-like compounds were the main cause of estrogenicity. Compared to the estimated average daily BPA exposure, additional BPA load via cold drinking water in the studied locations was low, maximum 8.7%. However, hot water should also be considered as exposure source due to higher BPA concentrations. Epoxy lined locations should be monitored in future in order to evaluate ageing process and control increasing leaching of potentially harmful chemicals. Descriptors Links Book Title Database Publisher . Published by Elsevier Ltd Data Source Authors Rajasarkka,J., Pernica,M., Kuta,J., Lasnak,J., Simek,Z., Blaha,L. Original/Translated Title URL Date of Electronic 20160715 PMCID Editors
Shisha Smoking Practices, Use Reasons, Attitudes, Health Effects and Intentions to Quit among Shisha Smokers in Malaysia	2016	Julius Centre University of Malaya (JCUM), Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia. wonglp@ummc.edu.my.; Julius Centre University of Malaya (JCUM), Department of Social and Prev	Read more...
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 19-Jul Volume 13 Issue 7 Start Page 10.3390/ijerph13070726 Other Pages Notes LR: 20160802; JID: 101238455; OID: NLM: PMC4962267; OTO: NOTNLM; 2016/05/04 [received]; 2016/05/20 [revised]; 2016/05/24 [accepted]; epublish Place of Publication Switzerland ISSN/ISBN 1660-4601; 1660-4601 Accession Number PMID: 27447655 Language eng SubFile Journal Article; IM DOI 10.3390/ijerph13070726 [doi] Output Language Unknown(0) PMID 27447655 Abstract Despite its popularity, shisha smoking practices, reasons for its use, attitudes, detrimental health effects and intention to quit among shisha users in Malaysia have never been investigated. A total of 503 shisha users responded to a cross-sectional study conducted between July 2015 and March 2016. The majority of users were young people aged 21-30; a small minority were underage. The reasons for shisha use were its growing popularity as a favourite pastime activity and the perception of shisha use as cool and trendy. Just over half (57.3%) agree that shisha use exposes the smoker to large amounts of smoke and the majority were unsure about the health risks of shisha smoking compared to tobacco smoking. The three most common detrimental health effects reported by the study respondents were dry throat, headache and nausea. Regular shisha users have significantly higher detrimental health effects compared to no-regular shisha users. Shisha users with a duration of smoking of 6-12 months (odds ratio (OR) 3.212; 95% confidence interval (CI) 1.651-6.248) and 6 months and below (OR 2.601; 95% CI 1.475-4.584) were significantly more likely to have a higher proportion who intend quitting smoking than shisha users of more than 12 months duration. Descriptors Links Book Title Database Publisher Data Source Authors Wong,L.P., Alias,H., Aghamohammadi,N., Aghazadeh,S., Hoe,V.C. Original/Translated Title URL Date of Electronic 20160719 PMCID PMC4962267 Editors
The changing tobacco landscape: What dental professionals need to know	2016		Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of the American Dental Association (1939) Periodical, Abbrev. J.Am.Dent.Assoc. Pub Date Free Form Jul Volume 147 Issue 7 Start Page 561 Other Pages 569 Notes LR: 20160630; CI: Copyright (c) 2016; GR: KL2 TR000143/TR/NCATS NIH HHS/United States; JID: 7503060; NIHMS772669; OID: NLM: NIHMS772669 [Available on 07/01/17]; OID: NLM: PMC4925234 [Available on 07/01/17]; OTO: NOTNLM; PMCR: 2017/07/01 00:00; 2015/10/01 Place of Publication England ISSN/ISBN 1943-4723; 0002-8177 Accession Number PMID: 26988178 Language eng SubFile Journal Article; D; IM DOI 10.1016/j.adaj.2016.01.008 [doi] Output Language Unknown(0) PMID 26988178 Abstract BACKGROUND: Tobacco products in the United States and the patterns of tobacco use are changing. Although cigarette smoking prevalence has declined, dental professionals are likely to encounter substantial numbers of patients who have tried and are continuing to use new and alternative tobacco products, including cigars, water pipes (hookahs), and electronic cigarettes, as well as conventional and new smokeless tobacco products. METHODS: The authors reviewed conventional and new tobacco products in the United States, their adverse oral and systemic health effects, and their prevalence of use. RESULTS: Tobacco products other than cigarettes account for a substantial portion of tobacco use. For this reason, tobacco-use prevention and cessation counseling provided by dental health care professionals must address all tobacco products, including cigarettes, cigars, water pipes, and electronic cigarettes, as well as conventional and new smokeless tobacco products. Cigarette smoking and smokeless tobacco use are associated with immediate and long-term adverse health effects, including nicotine addiction, oral and systemic disease, and death. Novel products may attract new tobacco users, potentially leading to addiction that results in enduring tobacco product use and associated adverse health effects. CONCLUSIONS: This critical review of conventional, new, and emerging tobacco products presents information that dental professionals can use in providing tobacco-related counseling to patients who use or who are at risk for using tobacco products. PRACTICAL IMPLICATIONS: It is essential that dental professionals are knowledgeable about tobacco products and are able to answer patients' questions and provide them with evidence-based tobacco-related counseling. This information may prevent patients from initiating use or help reduce or cease use to avoid immediate and long-term adverse health effects, including nicotine addiction, oral and systemic disease, and death. Descriptors Links Book Title Database Publisher American Dental Association. Published by Elsevier Inc. All rights reserved Data Source Authors Couch,E.T., Chaffee,B.W., Gansky,S.A., Walsh,M.M. Original/Translated Title URL Date of Electronic 20160314 PMCID PMC4925234 Editors
Online E-cigarette Marketing Claims: A Systematic Content and Legal Analysis	2016	Elizabeth G. Klein, Associate Professor, The Ohio State University College of Public Health, Columbus, OH. Micah Berman, Assistant Professor, The Ohio State University College of Public Health and Moritz College of Law, Columbus, OH. Natalie Hemmerich, Po	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Tobacco regulatory science Periodical, Abbrev. Tob Regul.Sci. Pub Date Free Form Jul Volume 2 Issue 3 Start Page 252 Other Pages 262 Notes LR: 20160725; GR: P50 CA180908/CA/NCI NIH HHS/United States; JID: 101655763; NIHMS799718; OTO: NOTNLM; 2016/07/01 [epublish]; ppublish Place of Publication ISSN/ISBN 2333-9748; 2333-9748 Accession Number PMID: 27446984 Language ENG SubFile JOURNAL ARTICLE DOI 10.18001/TRS.2.3.5 [doi] Output Language Unknown(0) PMID 27446984 Abstract OBJECTIVES: Electronic nicotine delivery systems (ENDS), or e-cigarettes, are heavily marketed online. The purpose of our study was to perform a systematic identification and evaluation of claims made within ENDS retailer and manufacturer websites, and the legal status of such claims. METHODS: We employed a systematic search protocol with popular search engines using 6 terms: (1) e-cigarettes; (2) e-cigs; (3) e-juice; (4) e-liquid; (5) e-hookah; and (6) vape pen. We analyzed English-language websites where ENDS are sold for implicit and explicit health-related claims. A legal analysis determined whether such claims are permissible under the US Food and Drug Administration's regulations. RESULTS: The vast majority of ENDS manufacturer (N = 78) and retailer (N = 32) websites made at least one health-related claim (77% and 65%, respectively). Modified risk claims and secondhand smoke-related claims were most prevalent, with an average of 2 claims per site. CONCLUSIONS: Health-related claims are plentiful within ENDS manufacturer and retailer websites. Results demonstrate that these sites focus on potential benefits while minimizing or eliminating information about possible harmful effects of ENDS. These claims are subject to the current regulatory authority by the FDA, and pose a risk of misinforming consumers. Descriptors Links Book Title Database Publisher Data Source Authors Klein,E.G., Berman,M., Hemmerich,N., Carlson,C., Htut,S., Slater,M. Original/Translated Title URL Date of Electronic 20160701 PMCID PMC4950517 Editors
Hookah smoking behavior initiation in the context of Millennials	2016	Social and Behavioral Sciences, College of Public Health and Health Professions, University of Florida, USA. Electronic address: gcastane@phhp.ufl.edu.; Department of Epidemiology, College of Public Health and Health Professions & College of Medicine, Uni	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Public health Periodical, Abbrev. Public Health Pub Date Free Form Aug Volume 137 Issue Start Page 124 Other Pages 130 Notes LR: 20160815; CI: Copyright (c) 2016; GR: R03 CA165766/CA/NCI NIH HHS/United States; JID: 0376507; NIHMS761961; OID: NLM: NIHMS761961 [Available on 08/01/17]; OID: NLM: PMC4983476 [Available on 08/01/17]; OTO: NOTNLM; PMCR: 2017/08/01 00:00; 2015/07/01 [r Place of Publication Netherlands ISSN/ISBN 1476-5616; 0033-3506 Accession Number PMID: 27003670 Language eng SubFile Journal Article; IM DOI 10.1016/j.puhe.2016.02.013 [doi] Output Language Unknown(0) PMID 27003670 Abstract OBJECTIVES: This study aims to examine current hookah users' perceptions, attitudes, and normative beliefs regarding hookah smoking to further elucidate the rise in hookah smoking prevalence among young adults (aged 18-24 years) and reveal why hookah smoking is perceived as less harmful than other forms of tobacco consumption. STUDY DESIGN: Qualitative. METHODS: Data from six focus group interviews with hookah smokers aged between 18 and 24 years were analyzed using a grounded theory approach. Focus groups were evenly split between frequent and infrequent hookah users, and were predominantly composed of college students, with two groups of hookah users consisting of 18-24 year olds of non-student status. RESULTS: Hookah users shared a much larger set of positive hookah smoking behavioral beliefs as opposed to negative behavioral beliefs. Generational traits served as the overarching commonality among the behavior performance initiation determinants observed. The most notable generational trends observed were within the cultural category, which included the following millennial characteristics: autonomy, personalization, novelty appeal, convenience, globally oriented, entertainment, collaboration, health conscious, and valuing their social network. CONCLUSIONS: Millennial hookah users revealed mindfulness regarding both potential negative and positive reasons stemming from continued hookah use; however, behavioral beliefs were primarily fixated on the perception that hookah smoking was a healthier alternative to cigarette smoking. Future implications for this study's findings include generating more positive ways to express these traits for young adults; policy implications include raising hookah bar age limits, implementing indoor smoking restrictions, and limiting the ease of accessibility for purchasing hookah supplies. Descriptors Links Book Title Database Publisher The Royal Society for Public Health. Published by Elsevier Ltd Data Source Authors Castaneda,G., Barnett,T.E., Soule,E.K., Young,M.E. Original/Translated Title URL Date of Electronic 20160420 PMCID PMC4983476 Editors
Fungi from a Groundwater-Fed Drinking Water Supply System in Brazil	2016	Department of Antibiotics, Federal University of Pernambuco, Av. Prof. Morais Rego, 1235, Recife, Pernambuco 50670-901, Brazil. helenambo@yahoo.com.br.; Department of Chemical Sciences and Natural Resources, BIOREN-UFRO Scientific and Technological Biores	Read more...
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 9-Mar Volume 13 Issue 3 Start Page 10.3390/ijerph13030304 Other Pages Notes LR: 20160405; JID: 101238455; OID: NLM: PMC4808967; OTO: NOTNLM; 2016/02/11 [received]; 2016/02/28 [revised]; 2016/03/04 [accepted]; epublish Place of Publication Switzerland ISSN/ISBN 1660-4601; 1660-4601 Accession Number PMID: 27005653 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.3390/ijerph13030304 [doi] Output Language Unknown(0) PMID 27005653 Abstract Filamentous fungi in drinking water distribution systems are known to (a) block water pipes; (b) cause organoleptic biodeterioration; (c) act as pathogens or allergens and (d) cause mycotoxin contamination. Yeasts might also cause problems. This study describes the occurrence of several fungal species in a water distribution system supplied by groundwater in Recife-Pernambuco, Brazil. Water samples were collected from four sampling sites from which fungi were recovered by membrane filtration. The numbers in all sampling sites ranged from 5 to 207 colony forming units (CFU)/100 mL with a mean value of 53 CFU/100 mL. In total, 859 isolates were identified morphologically, with Aspergillus and Penicillium the most representative genera (37% and 25% respectively), followed by Trichoderma and Fusarium (9% each), Curvularia (5%) and finally the species Pestalotiopsis karstenii (2%). Ramichloridium and Leptodontium were isolated and are black yeasts, a group that include emergent pathogens. The drinking water system in Recife may play a role in fungal dissemination, including opportunistic pathogens. Descriptors Links Book Title Database Publisher Data Source Authors Oliveira,H.M., Santos,C., Paterson,R.R., Gusmao,N.B., Lima,N. Original/Translated Title URL Date of Electronic 20160309 PMCID PMC4808967 Editors
Pulmonary Abnormalities in Young, Light-use Waterpipe (Hookah) Smokers	2016	Weill Cornell Medical College, New York, New York, United States ; geneticmedicine6@med.cornell.edu.; Weill Cornell Medical College, New York, New York, United States ; geneticmedicine2@med.cornell.edu.; Weill Cornell Medical College, New York, New York,	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full American journal of respiratory and critical care medicine Periodical, Abbrev. Am.J.Respir.Crit.Care Med. Pub Date Free Form 23-Mar Volume Issue Start Page Other Pages Notes LR: 20160324; JID: 9421642; OTO: NOTNLM; aheadofprint Place of Publication ISSN/ISBN 1535-4970; 1073-449X Accession Number PMID: 27007171 Language ENG SubFile JOURNAL ARTICLE DOI 10.1164/rccm.201512-2470OC [doi] Output Language Unknown(0) PMID 27007171 Abstract RATIONALE: Waterpipe, also called hookah, is currently used by millions of people worldwide. Despite the increasing use of waterpipe smoking, there is limited data on the health effects of waterpipe smoking and no federal regulations to its use. OBJECTIVES: Assess the effects of waterpipe smoking on the human lung using clinical and bio-logic parameters in young, light-use waterpipe smokers. MEASUREMENTS: Assess young, light-use waterpipe-only smokers in comparison to lifelong non-smokers using clinical parameters including cough and sputum scores, lung function, and chest HRCT, and biologic parameters including lung epithelial lining fluid (ELF) metabolome, small airway epithelial (SAE) cell differential and transcriptome, alveolar macrophage (AM) transcrip-tome, and plasma apoptotic endothelial cell microparticles (EMPs). MAIN RESULTS: Compared to nonsmokers, waterpipe smokers had more cough and sputum, and lower lung diffusing capacity, abnormal ELF metabolome profile, increased proportions of SAE secretory and intermediate cells, reduced proportions of SAE ciliated and basal cells, markedly abnormal SAE and AM transcriptomes, and elevated levels of apoptotic EMPs. CONCLUSIONS: Young, light-use waterpipe-only smokers have a variety of abnormalities in multiple lung-related biologic and clinical parameters, suggesting that even limited waterpipe use has broad consequences on human lung biology and health. We suggest that large epidemiologic studies should be initiated on the harmful effects of waterpipe smoking. Descriptors Links Book Title Database Publisher Data Source Authors Strulovici-Barel,Y., Shaykhiev,R., Salit,J., Deeb,R.S., Krause,A., Kaner,R.J., Vincent,T.L., Agosto-Perez,F., Wang,G., Hollmann,C., Shanmugam,V., Almulla,A.M., Sattar,H., Mahmoud,M., Mezey,J.G., Gross,S.S., Staudt,M.R., Walters,M.S., Crystal,R.G. Original/Translated Title URL Date of Electronic 20160323 PMCID Editors
Biofilms on Hospital Shower Hoses: Characterization and Implications for Nosocomial Infections	2016	School of Biology, Georgia Institute of Technology, Atlanta, Georgia, USA Center for Bioinformatics and Computational Genomics, Georgia Institute of Technology, Atlanta, Georgia, USA.; School of Biology, Georgia Institute of Technology, Atlanta, Georgia,	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Applied and Environmental Microbiology Periodical, Abbrev. Appl.Environ.Microbiol. Pub Date Free Form 18-Apr Volume 82 Issue 9 Start Page 2872 Other Pages 2883 Notes LR: 20160507; CI: Copyright (c) 2016; JID: 7605801; OID: NLM: PMC4836434 [Available on 10/18/16]; PMCR: 2016/10/18 00:00; 2015/10/30 [received]; 2016/02/23 [accepted]; 2016/05/01 [ppublish]; 2016/03/11 [aheadofprint]; epublish Place of Publication United States ISSN/ISBN 1098-5336; 0099-2240 Accession Number PMID: 26969701 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/AEM.03529-15 [doi] Output Language Unknown(0) PMID 26969701 Abstract Although the source of drinking water (DW) used in hospitals is commonly disinfected, biofilms forming on water pipelines are a refuge for bacteria, including possible pathogens that survive different disinfection strategies. These biofilm communities are only beginning to be explored by culture-independent techniques that circumvent the limitations of conventional monitoring efforts. Hence, theories regarding the frequency of opportunistic pathogens in DW biofilms and how biofilm members withstand high doses of disinfectants and/or chlorine residuals in the water supply remain speculative. The aim of this study was to characterize the composition of microbial communities growing on five hospital shower hoses using both 16S rRNA gene sequencing of bacterial isolates and whole-genome shotgun metagenome sequencing. The resulting data revealed a Mycobacterium-like population, closely related to Mycobacterium rhodesiae and Mycobacterium tusciae, to be the predominant taxon in all five samples, and its nearly complete draft genome sequence was recovered. In contrast, the fraction recovered by culture was mostly affiliated with Proteobacteria, including members of the genera Sphingomonas, Blastomonas, and Porphyrobacter.The biofilm community harbored genes related to disinfectant tolerance (2.34% of the total annotated proteins) and a lower abundance of virulence determinants related to colonization and evasion of the host immune system. Additionally, genes potentially conferring resistance to beta-lactam, aminoglycoside, amphenicol, and quinolone antibiotics were detected. Collectively, our results underscore the need to understand the microbiome of DW biofilms using metagenomic approaches. This information might lead to more robust management practices that minimize the risks associated with exposure to opportunistic pathogens in hospitals. Descriptors Links Book Title Database Publisher American Society for Microbiology. All Rights Reserved Data Source Authors Soto-Giron,M.J., Rodriguez-R,L.M., Luo,C., Elk,M., Ryu,H., Hoelle,J., Santo Domingo,J.W., Konstantinidis,K.T. Original/Translated Title URL Date of Electronic 20160418 PMCID PMC4836434 Editors
Depressive symptoms and bone mineral density in menopause and postmenopausal women: A still increasing and neglected problem	2016	Department of Biostatistics and Medical Informatics, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey; Department of Evidence for Population Health Unit, School of Epidemiology and Health Sciences, University of Manchester, Manchester	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of family medicine and primary care Periodical, Abbrev. J.Family Med.Prim.Care. Pub Date Free Form Jan-Mar Volume 5 Issue 1 Start Page 143 Other Pages 149 Notes LR: 20160729; JID: 101610082; OID: NLM: PMC4943122; OTO: NOTNLM; ppublish Place of Publication India ISSN/ISBN 2249-4863; 2249-4863 Accession Number PMID: 27453860 Language eng SubFile Journal Article DOI 10.4103/2249-4863.184640 [doi] Output Language Unknown(0) PMID 27453860 Abstract BACKGROUND: The association between depression and loss of bone mineral density (BMD) has been reported as controversial. OBJECTIVE: The objective of the current study was to investigate whether an association exists between depression and low BMD during the menopausal and postmenopausal period. MATERIALS AND METHODS: A cross-sectional descriptive study was used to generate menopause symptoms experienced by Arabian women at the Primary Health Care Centers in Qatar. A multi-stage sampling design was used, and a representative sample of 1650 women aged 45-65 years were included during July 2012 and November 2013. This prospective study explored the association between bone density and major depressive disorder in women. Bone mineral densitometry measurements (BMD) (g/m(2)) were assessed at the BMD unit using a lunar prodigy DXA system (Lunar Corp., Madison, WI). Data on body mass index (BMI), clinical biochemistry variables including serum 25-hydroxyvitamin D were collected. The Beck Depression Inventory was administered for depression purposes. RESULTS: Out of 1650 women 1182 women agreed to participate in the study (71.6%). The mean age and standard deviation (SD) of the menopausal age were 48.71 +/- 2.96 with depressed and 50.20 +/- 3.22 without depressed (P Descriptors Links Book Title Database Publisher Data Source Authors Bener,A., Saleh,N.M., Bhugra,D. Original/Translated Title URL Date of Electronic PMCID PMC4943122 Editors
Control of Legionella Contamination and Risk of Corrosion in Hospital Water Networks following Various Disinfection Procedures	2016	University of Modena and Reggio Emilia, Department of Biomedical, Metabolic and Neurosciences, Section of Public Health, Modena, Italy isabella.marchesi@unimore.it.; University of Modena and Reggio Emilia, Department of Biomedical, Metabolic and Neuroscie	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Applied and Environmental Microbiology Periodical, Abbrev. Appl.Environ.Microbiol. Pub Date Free Form 2-May Volume 82 Issue 10 Start Page 2959 Other Pages 2965 Notes LR: 20160726; CI: Copyright (c) 2016; JID: 7605801; OID: NLM: PMC4959080 [Available on 11/02/16]; PMCR: 2016/11/02 00:00; 2015/12/01 [received]; 2016/03/03 [accepted]; 2016/05/15 [ppublish]; 2016/03/11 [aheadofprint]; epublish Place of Publication United States ISSN/ISBN 1098-5336; 0099-2240 Accession Number PMID: 26969696 Language eng SubFile Journal Article; IM DOI 10.1128/AEM.03873-15 [doi] Output Language Unknown(0) PMID 26969696 Abstract Physical and chemical disinfection methods have been proposed with the aim of controlling Legionella water contamination. To date, the most effective procedures for reducing bacterial contamination have not yet been defined. The aim of this study was to assess the long-term effectiveness of various disinfection procedures in order to reduce both culturable and nonculturable (NC) legionellae in different hospital water networks treated with heat, chlorine dioxide, monochloramine, and hydrogen peroxide. The temperature levels and biocide concentrations that proved to give reliable results were analyzed. In order to study the possible effects on the water pipes, we verified the extent of corrosion on experimental coupons after applying each method for 6 months. The percentage of positive points was at its lowest after treatment with monochloramine, followed by chlorine dioxide, hydrogen peroxide, and hyperthermia. Different selections of Legionella spp. were observed, as networks treated with chlorine-based disinfectants were contaminated mainly by Legionella pneumophila serogroup 1, hyperthermia was associated with serogroups 2 to 14, and hydrogen peroxide treatment was associated mainly with non-pneumophila species. NC cells were detected only in heat-treated waters, and also when the temperature was approximately 60 degrees C. The corrosion rates of the coupons were within a satisfactory limit for water networks, but the morphologies differed. We confirm here that chemical disinfection controls Legionella colonization more effectively than hyperthermia does. Monochloramine was the most effective treatment, while hydrogen peroxide may be a promising alternative to chlorine-based disinfectants due to its ability to select for other, less virulent or nonpathogenic species. Descriptors Links Book Title Database Publisher American Society for Microbiology. All Rights Reserved Data Source Authors Marchesi,I., Ferranti,G., Mansi,A., Marcelloni,A.M., Proietto,A.R., Saini,N., Borella,P., Bargellini,A. Original/Translated Title URL Date of Electronic 20160502 PMCID PMC4959080 Editors

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