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Evaluation of electronic cigarette use (vaping) topography and estimation of liquid consumption: implications for research protocol standards definition and for public health authorities' regulation 2013 Onassis Cardiac Surgery Center, Sygrou 356, Kallithea, Greece. kfarsalinos@gmail.com
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Print(0)
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Journal Article
Periodical, Full
International journal of environmental research and public health
Periodical, Abbrev.
Int.J.Environ.Res.Public.Health.
Pub Date Free Form
18-Jun
Volume
10
Issue
6
Start Page
2500
Other Pages
2514
Notes
LR: 20151119; JID: 101238455; 6M3C89ZY6R (Nicotine); OID: NLM: PMC3717749; 2013/05/18 [received]; 2013/06/06 [revised]; 2013/06/07 [accepted]; epublish
Place of Publication
Switzerland
ISSN/ISBN
1660-4601; 1660-4601
Accession Number
PMID: 23778060
Language
eng
SubFile
Journal Article; Randomized Controlled Trial; IM
DOI
10.3390/ijerph10062500 [doi]
Output Language
Unknown(0)
PMID
23778060
Abstract
BACKGROUND: Although millions of people are using electronic cigarettes (ECs) and research on this topic has intensified in recent years, the pattern of EC use has not been systematically studied. Additionally, no comparative measure of exposure and nicotine delivery between EC and tobacco cigarette or nicotine replacement therapy (NRTs) has been established. This is important, especially in the context of the proposal for a new Tobacco Product Directive issued by the European Commission. METHODS: A second generation EC device, consisting of a higher capacity battery and tank atomiser design compared to smaller cigarette-like batteries and cartomizers, and a 9 mg/mL nicotine-concentration liquid were used in this study. Eighty subjects were recruited; 45 experienced EC users and 35 smokers. EC users were video-recorded when using the device (ECIG group), while smokers were recorded when smoking (SM-S group) and when using the EC (SM-E group) in a randomized cross-over design. Puff, inhalation and exhalation duration were measured. Additionally, the amount of EC liquid consumed by experienced EC users was measured at 5 min (similar to the time needed to smoke one tobacco cigarette) and at 20 min (similar to the time needed for a nicotine inhaler to deliver 4 mg nicotine). RESULTS: Puff duration was significantly higher in ECIG (4.2 +/- 0.7 s) compared to SM-S (2.1 +/- 0.4 s) and SM-E (2.3 +/- 0.5 s), while inhalation time was lower (1.3 +/- 0.4, 2.1 +/- 0.4 and 2.1 +/- 0.4 respectively). No difference was observed in exhalation duration. EC users took 13 puffs and consumed 62 +/- 16 mg liquid in 5 min; they took 43 puffs and consumed 219 +/- 56 mg liquid in 20 min. Nicotine delivery was estimated at 0.46 +/- 0.12 mg after 5 min and 1.63 +/- 0.41 mg after 20 min of use. Therefore, 20.8 mg/mL and 23.8 mg/mL nicotine-containing liquids would deliver 1 mg of nicotine in 5 min and 4 mg nicotine in 20 min, respectively. Since the ISO method significantly underestimates nicotine delivery by tobacco cigarettes, it seems that liquids with even higher than 24 mg/mL nicotine concentration would be comparable to one tobacco cigarette. CONCLUSIONS: EC use topography is significantly different compared to smoking. Four-second puffs with 20-30 s interpuff interval should be used when assessing EC effects in laboratory experiments, provided that the equipment used does not get overheated. Based on the characteristics of the device used in this study, a 20 mg/mL nicotine concentration liquid would be needed in order to deliver nicotine at amounts similar to the maximum allowable content of one tobacco cigarette (as measured by the ISO 3308 method). The results of this study do not support the statement of the European Commission Tobacco Product Directive that liquids with nicotine concentration of 4 mg/mL are comparable to NRTs in the amount of nicotine delivered to the user.
Descriptors
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Book Title
Database
Publisher
Data Source
Authors
Farsalinos,K.E., Romagna,G., Tsiapras,D., Kyrzopoulos,S., Voudris,V.
Original/Translated Title
URL
Date of Electronic
20130618
PMCID
PMC3717749
Editors
Prevalence of and factors influencing smoking among medical and non-medical students in Tbilisi, Georgia 2013 Tbilisi State Medical University, Tbilisi, Georgia.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia
Periodical, Abbrev.
J.Bras.Pneumol.
Pub Date Free Form
Sep-Oct
Volume
39
Issue
5
Start Page
579
Other Pages
584
Notes
LR: 20151119; JID: 101222274; OID: NLM: PMC4075884; 2012/10/11 [received]; 2013/08/19 [accepted]; ppublish
Place of Publication
Brazil
ISSN/ISBN
1806-3756; 1806-3713
Accession Number
PMID: 24310631
Language
eng; por
SubFile
Journal Article; IM
DOI
10.1590/S1806-37132013000500008 [doi]
Output Language
Unknown(0)
PMID
24310631
Abstract
OBJECTIVE: Smoking is a serious problem that has a devastating impact on health. The objective of this study was to describe the prevalence of and factors influencing smoking among medical and non-medical students in Tbilisi, Georgia, as well as to determine whether medical education has an impact on smoking. METHODS: A cross-sectional study was carried out at Tbilisi State Medical University and Tbilisi State University, both of which are located in Tbilisi, Georgia. A total of 400 4th-year students (200 students at each university) were asked to complete standardized questionnaires. RESULTS: Of the sample as a whole, 48.75% were identified as smokers and 51.25% were identified as nonsmokers. The mean age was 20.24 years among smokers and 20.26 years among nonsmokers. Of the medical students, 49.5% were smokers, as were 48.0% of the non-medical students. The male-to-female ratio in the study population was 0.9:1.1. Smoking was found to have a strong relationship with gender, males accounting for 65% of all smokers. Of the smokers, 56.9% stated that they would like to quit smoking (for health or financial reasons). Of the medical students, 59.5% expressed a willingness to quit smoking, as did 54.2% of the non-medical students. CONCLUSIONS: There is a need to improve smoking education for undergraduate students. Special attention should be given to the inclusion of anti-smoking education in undergraduate curricula, as well as to the implementation of smoking prevention campaigns at institutions of higher education. However, such measures will be effective only if tobacco control policies are strictly enforced on the national level as well.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Chkhaidze,I., Maglakelidze,N., Maglakelidze,T., Khaltaev,N.
Original/Translated Title
URL
Date of Electronic
PMCID
PMC4075884
Editors
Determinants of nonmedical use, abuse or dependence on prescription drugs, and use of substance abuse treatment 2013 Department of Clinical Sciences and Administration, College of Pharmacy, University of Houston, 1441 Moursund St, Houston, TX 77030, USA. v.bali4u@gmail.com
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Research in social & administrative pharmacy : RSAP
Periodical, Abbrev.
Res.Social Adm.Pharm.
Pub Date Free Form
May-Jun
Volume
9
Issue
3
Start Page
276
Other Pages
287
Notes
LR: 20150312; CI: Copyright (c) 2013; JID: 101231974; 0 (Prescription Drugs); EIN: Res Social Adm Pharm. 2013 Jul-Aug;9(4):495; 2011/09/18 [received]; 2012/04/15 [revised]; 2012/04/16 [accepted]; 2012/06/23 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1934-8150; 1551-7411
Accession Number
PMID: 22727534
Language
eng
SubFile
Journal Article; IM
DOI
10.1016/j.sapharm.2012.04.008 [doi]
Output Language
Unknown(0)
PMID
22727534
Abstract
BACKGROUND: Previous studies have found a negative association between health insurance and nonmedical use of prescription drugs (NMUPD), and abuse or dependence on prescription drugs (ADPD); and mixed associations between health insurance and use of substance abuse treatment (SAT). However, effect of health insurance in the specific subgroups of population is largely unknown. OBJECTIVE: To estimate the relationship between health insurance and (1) NMUPD, (2) ADPD, and (3) use of SAT services among 12-64 years old, noninstitutionalized individuals and to see if these relationships are different in different subgroups of population. METHODS: This study used cross-sectional survey data from 2007 National Survey on Drug Use and Health. Bivariate and multiple logistic regression analyses were conducted. RESULTS: In 2007, self-reported prevalence of NMUPD was approximately 10% (N=15,509,703). In multivariate analysis, NMUPD was negatively associated with health insurance, age, race other than non-Hispanic White, education, marital status, and income ($40,000-$74,999). Past year use of tobacco and alcohol were positively associated with NMUPD. Among those with private health insurance, Hispanics and individuals with family income less than $20,000 and $40,000-$74,999 were more likely prone to NMUPD than others. High school graduates with public health insurance were less likely prone to NMUPD. Approximately, 13% of nonmedical users reported ADPD (N=2,011,229). Health insurance and age were negatively associated with ADPD. However, people who were unmarried, reported fair/poor health, and used tobacco were more likely to report ADPD. Lastly, the use of substance abuse treatment programs was approximately 73% and 76% between NMUPD and ADPD population, respectively. Health insurance was not associated with use of substance abuse treatment. Individuals with high school education were 2.6 times more likely to use substance abuse treatment than the college graduates. Additionally, no significant interaction effects were found between health insurance, and sociodemographic factors on ADPD and the use of substance abuse treatment. CONCLUSIONS: Health insurance had a differential impact on NMUPD only. Among privately insured, Hispanics and individuals reporting family income less than $20,000 were more likely to engage in NMUPD. There is a need to better understand and monitor the use of prescription drugs among these groups. This knowledge can help in developing public health programs and policies that discourage NMUPD among these individuals.
Descriptors
Links
Book Title
Database
Publisher
Elsevier Inc
Data Source
Authors
Bali,V., Raisch,D.W., Moffett,M.L., Khan,N.
Original/Translated Title
URL
Date of Electronic
20120623
PMCID
Editors
N'-{(E)-[5-(Hy-droxy-meth-yl)furan-2-yl]methyl-idene}pyridine-4-carbohydrazide dihydrate 2013 Department of Chemistry and Research Centre, PRNSS College, Mattanur 670 702, Kannur, Kerala, India.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Acta crystallographica.Section E, Structure reports online
Periodical, Abbrev.
Acta Crystallogr.Sect.E.Struct.Rep.Online
Pub Date Free Form
27-Jul
Volume
69
Issue
Pt 8
Start Page
o1342
Other Pages
3
Notes
LR: 20140124; JID: 101089178; OID: NLM: PMC3793823; 2013/08/01 [ecollection]; 2013/06/30 [received]; 2013/07/20 [accepted]; 2013/07/27 [epublish]; epublish
Place of Publication
United States
ISSN/ISBN
1600-5368; 1600-5368
Accession Number
PMID: 24109410
Language
eng
SubFile
Journal Article
DOI
10.1107/S1600536813020114 [doi]
Output Language
Unknown(0)
PMID
24109410
Abstract
In the title compound, C12H11N3O3.2H2O, the dihedral angle formed by the planes of the pyridine and the furan rings of the organic carbohydrazide mol-ecule is 4.66 (7) degrees . In the crystal, these mol-ecules form stacks along the b-axis direction, neighbouring mol-ecules within each stack being related by inversion and the shortest distance between the centroids of the pyridine and furan rings being 3.714 (1) A. Mol-ecules from neighboring stacks are linked by pairs of N-Hcdots, three dots, centeredO hydrogen bonds. The water mol-ecules fill the channels between the stacks being linked by O-Hcdots, three dots, centeredO hydrogen bonds into helices along [010]. Besides this, water mol-ecules are involved in O-Hcdots, three dots, centeredN and O-Hcdots, three dots, centeredO hydrogen bonds with the carbohydrazide mol-ecules, thus forming a three-dimensional network, augmented by weak C-Hcdots, three dots, centeredO interactions.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Prasanna,M.K., Sithambaresan,M., Pradeepkumar,K., Kurup,M.R.
Original/Translated Title
URL
Date of Electronic
20130727
PMCID
PMC3793823
Editors
Group hypnosis vs. relaxation for smoking cessation in adults: a cluster-randomised controlled trial 2013 Swiss Research Institute for Public Health and Addiction ISGF, University of Zurich, Konradstrasse 32, Postfach, 8031 Zurich, Switzerland. maria.dickson@isgf.uzh.ch.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
BMC public health
Periodical, Abbrev.
BMC Public Health
Pub Date Free Form
23-Dec
Volume
13
Issue
Start Page
1227
Other Pages
2458-13-1227
Notes
LR: 20150422; ISRCTN/ISRCTN72839675; JID: 100968562; OID: NLM: PMC3878029; 2013/09/26 [received]; 2013/12/20 [accepted]; 2013/12/23 [aheadofprint]; epublish
Place of Publication
England
ISSN/ISBN
1471-2458; 1471-2458
Accession Number
PMID: 24365274
Language
eng
SubFile
Comparative Study; Journal Article; Randomized Controlled Trial; IM
DOI
10.1186/1471-2458-13-1227 [doi]
Output Language
Unknown(0)
PMID
24365274
Abstract
BACKGROUND: Despite the popularity of hypnotherapy for smoking cessation, the efficacy of this method is unclear. We aimed to investigate the efficacy of a single-session of group hypnotherapy for smoking cessation compared to relaxation in Swiss adult smokers. METHODS: This was a cluster-randomised, parallel-group, controlled trial. A single session of hypnosis or relaxation for smoking cessation was delivered to groups of smokers (median size = 11). Participants were 223 smokers consuming >/= 5 cigarettes per day, willing to quit and not using cessation aids (47.1% females, M = 37.5 years [SD = 11.8], 86.1% Swiss). Nicotine withdrawal, smoking abstinence self-efficacy, and adverse reactions were assessed at a 2-week follow-up. The main outcome, self-reported 30-day point prevalence of smoking abstinence, was assessed at a 6-month follow up. Abstinence was validated through salivary analysis. Secondary outcomes included number of cigarettes smoked per day, smoking abstinence self-efficacy, and nicotine withdrawal. RESULTS: At the 6-month follow up, 14.7% in the hypnosis group and 17.8% in the relaxation group were abstinent. The intervention had no effect on smoking status (p = .73) or on the number of cigarettes smoked per day (p = .56). Smoking abstinence self-efficacy did not differ between the interventions (p = .14) at the 2-week follow-up, but non-smokers in the hypnosis group experienced reduced withdrawal (p = .02). Both interventions produced few adverse reactions (p = .81). CONCLUSIONS: A single session of group hypnotherapy does not appear to be more effective for smoking cessation than a group relaxation session. TRIAL REGISTRATION: Current Controlled Trials ISRCTN72839675.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Dickson-Spillmann,M., Haug,S., Schaub,M.P.
Original/Translated Title
URL
Date of Electronic
20131223
PMCID
PMC3878029
Editors
Efficacy of an experiential, dissonance-based smoking intervention for college students delivered via the internet 2013 Department of Health Outcomes and Behavior.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Journal of consulting and clinical psychology
Periodical, Abbrev.
J.Consult.Clin.Psychol.
Pub Date Free Form
Oct
Volume
81
Issue
5
Start Page
810
Other Pages
820
Notes
LR: 20160303; GR: P30 CA076292/CA/NCI NIH HHS/United States; JID: 0136553; NIHMS731776; OID: NLM: NIHMS731776; OID: NLM: PMC4640469; 2013/05/13 [aheadofprint]; ppublish
Place of Publication
United States
ISSN/ISBN
1939-2117; 0022-006X
Accession Number
PMID: 23668667
Language
eng
SubFile
Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't; IM
DOI
10.1037/a0032952 [doi]
Output Language
Unknown(0)
PMID
23668667
Abstract
OBJECTIVE: College represents a window of opportunity to reach the sizeable number of cigarette smokers who are vulnerable to lifelong smoking. The underutilization of typical cessation programs suggests the need for novel and more engaging approaches for reaching college smokers. The aim of the present study was to test the efficacy of a dissonance-enhancing, Web-based experiential intervention for increasing smoking cessation motivation and behavior. METHOD: We used a 4-arm, randomized design to examine the efficacy of a Web-based, experiential smoking intervention (Web-Smoke). The control conditions included a didactic smoking intervention (Didactic), a group-based experiential intervention (Group), and a Web-based nutrition experiential intervention (Web-Nutrition). We recruited 341 college smokers. Primary outcomes were motivation to quit, assessed immediately postintervention, and smoking abstinence at 1 and 6 months following the intervention. RESULTS: As hypothesized, the Web-Smoke intervention was more effective than control groups in increasing motivation to quit. At 6-month follow-up, the Web-Smoke intervention produced higher rates of smoking cessation than the Web-Nutrition control intervention. Daily smoking moderated intervention outcomes. Among daily smokers, the Web-Smoke intervention produced greater abstinence rates than both the Web-Nutrition and Didactic control conditions. CONCLUSION: Findings demonstrate the efficacy of a theory-based intervention delivered over the Internet for increasing motivation to quit and smoking abstinence among college smokers. The intervention has potential for translation and implementation as a secondary prevention strategy for college-aged smokers. (PsycINFO Database Record (c) 2013 APA, all rights reserved).
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Simmons,V.N., Heckman,B.W., Fink,A.C., Small,B.J., Brandon,T.H.
Original/Translated Title
URL
Date of Electronic
20130513
PMCID
PMC4640469
Editors
Effects of personality on risky driving behavior and accident involvement for Chinese drivers 2013 Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Chaoyang District, Beijing, China.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Traffic injury prevention
Periodical, Abbrev.
Traffic Inj.Prev.
Pub Date Free Form
Volume
14
Issue
6
Start Page
565
Other Pages
571
Notes
LR: 20151119; JID: 101144385; ppublish
Place of Publication
England
ISSN/ISBN
1538-957X; 1538-9588
Accession Number
PMID: 23859184
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1080/15389588.2012.748903 [doi]
Output Language
Unknown(0)
PMID
23859184
Abstract
OBJECTIVE: Motor vehicle accidents are the leading cause of injury-related fatalities in China and pose the most serious threat to driving safety. Driver personality is considered as an effective predictor for risky driving behavior and accident liability. Previous studies have focused on the relationship between personality and risky driving behavior, but only a few of them have explored the effects of personality variables on accident involvement. In addition, few studies have examined the effects of personality on Chinese drivers' risky driving and accident involvement. The present study aimed to examine the effects of personality variables on Chinese drivers' unsafe driving behaviors and accident involvement. METHODS: Two hundred and twenty-four Chinese drivers aged 20 to 50 were required to complete questionnaires assessing their personality traits (anger, sensation-seeking, altruism, and normlessness), risky driving behaviors (aggressive violations, ordinary violations), and accident involvement (all accidents, serious accidents, at-fault accidents). Multivariate regression analyses, adjusting for gender, age, and overall mileage, were conducted to identify the personality traits related to risky driving behaviors and accident involvement. RESULTS: Participants' personality traits were found to be significantly correlated with both risky driving behavior and accident involvement. Specifically, the traits of anger and normlessness were effective predictors for aggressive violations. The traits of anger, sensation-seeking, normlessness, and altruism were effective predictors for ordinary violations. Moreover, altruism and normlessness were significant predictors for the total number of accidents participants had during the past 3 years. CONCLUSIONS: Consistent with previous studies, the present study revealed that personality traits play an important role in predicting Chinese drivers' risky driving behaviors. In addition, Chinese drivers' personality characteristics were also associated with accident involvement.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Yang,J., Du,F., Qu,W., Gong,Z., Sun,X.
Original/Translated Title
URL
Date of Electronic
PMCID
Editors
Self-perceived HIV risk and the use of risk reduction strategies among men who engage in transactional sex with other men in Ho Chi Minh City, Vietnam 2013 Harvard Medical School/Massachusetts General Hospital, Boston, Massachusetts, USA. mmimiaga@partners.org
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
AIDS Care
Periodical, Abbrev.
AIDS Care
Pub Date Free Form
Aug
Volume
25
Issue
8
Start Page
1039
Other Pages
1044
Notes
LR: 20150219; GR: 1 UL1 RR 025758-02/RR/NCRR NIH HHS/United States; GR: UL1 TR000170/TR/NCATS NIH HHS/United States; JID: 8915313; NIHMS451634; OID: NLM: NIHMS451634; OID: NLM: PMC3700653; 2012/12/20 [aheadofprint]; ppublish
Place of Publication
England
ISSN/ISBN
1360-0451; 0954-0121
Accession Number
PMID: 23252673
Language
eng
SubFile
Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; IM; X
DOI
10.1080/09540121.2012.748873 [doi]
Output Language
Unknown(0)
PMID
23252673
Abstract
An emerging HIV epidemic can be seen among men who have sex with men (MSM) in Vietnam, with prevalence as high as 18%. Transactional sex represents a risk factor for HIV transmission/acquisition among MSM globally, particularly in urban contexts, but remains largely underinvestigated in Ho Chi Minh City (HCMC), Vietnam. In 2010, 23 MSM who reported exchanging sex for money in the last month completed a brief survey and semistructured qualitative interview at The Life Centre, a non-governmental organization in HCMC, to assess sociodemographics, individual- and structural-level HIV risk factors and explore acceptable future prevention interventions. Participants' mean age was 24 years. Equal proportions of respondents self-identified as heterosexual/straight, homosexual/gay, and bisexual. Participants had a mean of 158 male clients in the past year, with a median of 60 male clients in the past year (interquartile range [IQR]=70) and reported inconsistent condom use and inaccurate perceptions of HIV risk. Nearly half of the sample reported engaging in unprotected anal sex with a male partner in the past 12 months and one-third with a male client. Major themes that emerged for HIV prevention interventions with male sex workers were those that: (1) focused on individual factors (drug and alcohol use, barriers to condom use, knowledge of asymptomatic STIs, enhancement of behavioral risk-reduction skills, and addressing concomitant mental health issues); (2) incorporated interpersonal and relational contexts (led by peer educators, built interpersonal skills, attended to partner type and intimacy dynamics); and (3) considered the exogenous environments in which individual choices/relationships operate (stigma of being MSM in Vietnam, availability of alternative economic opportunities, and varied sexual venues). HIV prevention efforts are needed that address the specific needs of MSM who engage in transactional sex in HCMC. Universally, MSM endorsed HIV prevention interventions, suggesting a need and desire for efforts in this context.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Mimiaga,M.J., Reisner,S.L., Closson,E.F., Perry,N., Perkovich,B., Nguyen,T., Trang,N.N., Lan,H.X., Thien,D.D., Mayer,K.H., Colby,D.
Original/Translated Title
URL
Date of Electronic
20121220
PMCID
PMC3700653
Editors
N-[3a-(4-Bromo-phen-yl)-8b-hy-droxy-6,8-dimeth-oxy-3-phenyl-2,3,3a,8b-tetra-hydro -1H-cyclo-penta-[b]benzofuran-1-yl]formamide monohydrate 2013 Cristallographie, Resonance Magnetique et Modelisations (CRM2), UMR CNRS-UHP 7036, Institut Jean Barriol, Universite de Lorraine, BP 70239, Bd des Aiguillettes, 54506 Vandoeuvre-les-Nancy, France.
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Acta crystallographica.Section E, Structure reports online
Periodical, Abbrev.
Acta Crystallogr.Sect.E.Struct.Rep.Online
Pub Date Free Form
1-Jan
Volume
69
Issue
Pt 1
Start Page
o52
Other Pages
3
Notes
LR: 20130418; JID: 101089178; OID: NLM: PMC3588239; 2012/11/22 [received]; 2012/12/03 [accepted]; 2012/12/08 [epublish]; ppublish
Place of Publication
United States
ISSN/ISBN
1600-5368; 1600-5368
Accession Number
PMID: 23476436
Language
eng
SubFile
Journal Article
DOI
10.1107/S1600536812049641 [doi]
Output Language
Unknown(0)
PMID
23476436
Abstract
In the title compound, C26H24BrNO5.H2O, a synthetic analogue of natural flavagline, the cyclo-pentane ring adopts an envelope conformation (the flap atom bearing the phenyl group) and the vicinal phenyl and bromo-phenyl groups are slightly shifted relative to each other [CPh-C-C-CPhBr = 36.3 (2) degrees ]. Intra-molecular N-Hcdots, three dots, centeredO and C-Hcdots, three dots, centeredO hydrogen bonds form S(5) motifs. In the crystal, the organic and the water mol-ecules are linked by an O-Hcdots, three dots, centeredO hydrogen bond. Pairs of organic and water mol-ecules, located about inversion centers, inter-act through O-Hcdots, three dots, centeredO hydrogen bonds, forming R4(4)(20) and R4(4)(26) motifs, which together lead to C2(2)(9) motifs. The crystal packing is also characterized by N-Hcdots, three dots, centeredO and C-Hcdots, three dots, centeredO hydrogen bonds between neighbouring organic mol-ecules, forming R2(2)(10) and R2(2)(18) motifs, respectively.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Aubert,E., Thuaud,F., Ribeiro,N., Desaubry,L., Espinosa,E.
Original/Translated Title
URL
Date of Electronic
20121208
PMCID
PMC3588239
Editors
Candidemia by species of the Candida parapsilosis complex in children's hospital: prevalence, biofilm production and antifungal susceptibility 2013 Departamento de Microbiologia, Instituto de Ciencias Biomedicas II, Universidade de Sao Paulo (USP), Sao Paulo, SP, Brazil. lu_ruiz74@hotmail.com
Source Type
Print(0)
Ref Type
Journal Article
Periodical, Full
Mycopathologia
Periodical, Abbrev.
Mycopathologia
Pub Date Free Form
Apr
Volume
175
Issue
4-Mar
Start Page
231
Other Pages
239
Notes
LR: 20131029; JID: 7505689; 0 (Antifungal Agents); 0 (DNA, Fungal); 0 (DNA, Ribosomal Spacer); 2012/10/05 [received]; 2013/01/15 [accepted]; 2013/02/13 [aheadofprint]; ppublish
Place of Publication
Netherlands
ISSN/ISBN
1573-0832; 0301-486X
Accession Number
PMID: 23404576
Language
eng
SubFile
Journal Article; Research Support, Non-U.S. Gov't; IM
DOI
10.1007/s11046-013-9616-5 [doi]
Output Language
Unknown(0)
PMID
23404576
Abstract
Opportunistic infections are an increasingly common problem in hospitals, and the yeast Candida parapsilosis has emerged as an important nosocomial pathogen. The aims of this study were to determine and compare (i) the prevalence rate among C. parapsilosis complex organisms isolated from blood in a public children's hospital in Sao Paulo state, (ii) the ability of the complex C. parapsilosis species identified to produce biofilm and (iii) the antifungal susceptibility profiles. Forty-nine (49) specimens of isolated blood yeast were analyzed, previously identified as C. parapsilosis by conventional methods. After the molecular analysis, the isolates were characterized as C. parapsilosis sensu stricto (83.7 %), C. orthopsilosis (10.2 %) and C. metapsilosis (6.1 %). All species were able to form biofilm. The species with the highest biofilm production was C. parapsilosis sensu stricto, followed by C. orthopsilosis and further by C. metapsilosis. All of the strains have demonstrated similar susceptibility to fluconazole, caspofungin, voriconazole, cetoconazole and 5-flucytosine. Only one strain of C. parapsilosis was resistant to amphotericin B. Regarding itraconazole, 66.6 and 43.9 % isolates of C. metapsilosis and C. parapsilosis, respectively, have demonstrated to be susceptible dose-dependent, with one isolate of the latter species resistant to the drug. Candida parapsilosis sensu stricto has demonstrated to be the less susceptible, mainly to amphotericin B, caspofungin and "azoles" such as fluconazole. Therefore, C. metapsilosis and C. orthopsilosis are still involved in a restricted number of infections, but these data have become essential for there are very few studies of these species in Latin America.
Descriptors
Links
Book Title
Database
Publisher
Data Source
Authors
Ruiz,L.S., Khouri,S., Hahn,R.C., da Silva,E.G., de Oliveira,V.K., Gandra,R.F., Paula,C.R.
Original/Translated Title
URL
Date of Electronic
20130213
PMCID
Editors