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https://www.readbyqxmd.com/read/28641188/risk-assessment-of-triclosan-released-from-sewage-treatment-plants-in-european-rivers-using-a-combination-of-risk-quotient-methodology-and-monte-carlo-simulation
#1
Vasiliki S Thomaidi, Christos Matsoukas, Athanasios S Stasinakis
Ιn this study a probabilistic risk assessment was applied to investigate the environmental risks for the European aquatic environment associated with triclosan (TCS) occurrence in treated wastewater. The concentrations of TCS in effluents of European Sewage Treatment Plants (STPs) were recorded through literature review, while toxicity data was collected for three groups of aquatic organisms (algae, Daphnia magna and fish). The ratio of Measured Environmental Concentration (MEC) and Predicted No Effect Concentration (PNEC), expressed as a Risk Quotient (RQ), was calculated for risk characterization, while Monte Carlo simulation was applied to quantify the associated uncertainty...
June 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28638857/development-of-the-fda-tobacco-credibility-scale-fda-tcs
#2
Allison M Schmidt, Leah M Ranney, Seth M Noar, Adam O Goldstein
OBJECTIVES: Messages from organizations with high, compared to low, credibility may be more persuasive. Whereas the tobacco industry has long recognized the importance of credibility in promoting its messages and public image, the source credibility of key tobacco control organizations has gone largely unmeasured. To assess credibility of a key tobacco regulator, we developed a scale of the US Food and Drug Administration (FDA) tobacco-related credibility. METHODS: We developed and tested 30 items reflective of the dimensions of source credibility (trust, expertise, and public interest) and FDA's tobacco regulatory roles in a sample of 1353 US adults and assessed reliability and validity...
January 2017: Tobacco Regulatory Science
https://www.readbyqxmd.com/read/28637569/assessing-field-triage-decisions-and-the-international-classification-injury-severity-score-iciss-at-predicting-outcomes-of-trauma-patients
#3
Casey J Allen, Daniel J Baldor, Carl I Schulman, Louis R Pizano, Alan S Livingstone, Nicholas Namias
Florida considers the International Classification Injury Severity Score (ICISS) from hospital discharges within a geographic region in the apportionment of trauma centers (TCs). Patients with an ICISS <0.85 are considered to require triage to a TC, yet many are triaged to an emergency department (ED). We assess outcomes of those with an ICISS <0.85 by the actual triage decision of emergency medical services (EMS). From October 2011 to October 2013, 39,021 consecutive admissions with injury ICD-9 codes were analyzed...
June 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28637560/despite-trauma-center-closures-trauma-system-regionalization-reduces-mortality-and-time-to-definitive-care-in-severely-injured-patients
#4
Jack C He, David Schechtman, Debra L Allen, Jillian J Cremona, Jeffrey A Claridge
The Northern Ohio Trauma System (NOTS), consisting of multiple hospital systems, was established in 2010 to improve trauma outcomes. This study assessed its impact on mortality and time to definitive care, focusing especially on the severely injured patients. NOTS trauma registry was queried for all trauma activations from 2008 to 2013. The years between 2008-2009 and 2011-2013 were designated as pre- and post-NOTS, respectively. Data from 2010 was excluded as a transitional year. Two trauma centers (TCs) closed in 2010...
June 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28631159/distinctive-pathological-and-clinical-features-of-lung-carcinoids-with-high-proliferation-index
#5
Caterina Marchiò, Gaia Gatti, Federica Massa, Luca Bertero, Pierluigi Filosso, Giuseppe Pelosi, Paola Cassoni, Marco Volante, Mauro Papotti
Typical (TCs) and atypical carcinoids (ACs) are defined based on morphological criteria, and no grading system is currently accepted to further stratify these entities. The 2015 WHO classification restricts the Ki-67 role to biopsy or cytology samples, rather than for prognostic prediction. We aimed to investigate whether values and patterns of Ki-67 alone would allow for a clinically meaningful stratification of lung carcinoids, regardless of histological typing. Ki-67 proliferation index and pattern (homogeneous versus heterogeneous expression) were assessed in a cohort of 171 TCs and 68 ACs...
June 19, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28627668/potential-genetic-damage-to-nematode-offspring-following-exposure-to-triclosan-during-pregnancy
#6
Aixia Zhang, Xiaohong Gu, Xiuping Wang, Lei Wang, Lihua Zeng, Xuemei Fan, Chen Jiang, Ziyi Fu, Xianwei Cui, Chenbo Ji, Hongming Qu, Xirong Guo
Triclosan (TCS) is widely used as broad-spectrum antibacterial agent. However, it may threaten the health of human offspring if the mother is exposed to TCS during pregnancy. The present study aimed to identify potential mechanisms behind the toxic effect of TCS on the offspring of Caenorhabditis elegans (C. elegans), using this nematode as a suitable animal model. The results of the current study demonstrated that the locomotory behavior and reproductive capacity of C. elegans offspring was severely affected by prenatal exposure to different concentrations of TCS...
June 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28625984/indole-induced-reversion-of-intrinsic-multi-antibiotic-resistance-in-lysobacter-enzymogenes
#7
Yong Han, Yan Wang, Yameng Yu, Haotong Chen, Yuemao Shen, Liangcheng Du
Lysobacter are a group of environmental bacteria that are emerging as a new source of antibiotics. One characteristic of Lysobacter is intrinsic resistance to multiple antibiotics, which had not been studied. To understand the resistant mechanism, we tested the effect of blocking two-component regulator systems (TCS) on antibiotic resistance of L. enzymogenes, a prolific producer of antibiotics. Upon treatment with LED209, an inhibitor of the widespread TCS QseC/QseB, L. enzymogenes produced a large amount of an unknown metabolite that was barely detectable in the untreated culture...
June 16, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28622731/navigating-tissue-chips-from-development-to-dissemination-a-pharmaceutical-industry-perspective
#8
Lorna Ewart, Kristin Fabre, Ananthsrinivas Chakilam, Yvonne Dragan, David B Duignan, Jeetu Eswaraka, Jinping Gan, Peggy Guzzie-Peck, Monicah Otieno, Claire G Jeong, Douglas A Keller, Sonia M de Morais, Jonathan A Phillips, William Proctor, Radhakrishna Sura, Terry Van Vleet, David Watson, Yvonne Will, Danilo Tagle, Brian Berridge
Tissue chips are poised to deliver a paradigm shift in drug discovery. By emulating human physiology, these chips have the potential to increase the predictive power of preclinical modeling, which in turn will move the pharmaceutical industry closer to its aspiration of clinically relevant and ultimately animal-free drug discovery. Despite the tremendous science and innovation invested in these tissue chips, significant challenges remain to be addressed to enable their routine adoption into the industrial laboratory...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28622639/an-investigation-into-the-rapid-removal-of-tetracycline-using-multilayered-graphene-phase-biochar-derived-from-waste-chicken-feather
#9
Huiqin Li, Jingtao Hu, Yue Meng, Jinhua Su, Xiaojing Wang
This study investigated the removal of tetracycline (TC) using multilayered graphene-phase biochar (MGB) derived from waste chicken feather. MGB was produced through a two-stage carbonization and KOH-activation method. MGB was characterized by scanning electron microscopy (SEM), transmission electron microscope (TEM), Fourier transform infrared (FT-IR), Raman spectra, Zeta potential and elemental analysis. Various chemical functional groups were demonstrated on the surface of MGB. MGB was featured by a very large BET surface area of 1838m(2)/g...
June 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28620858/toxicity-assessment-of-five-emerging-pollutants-alone-and-in-binary-or-ternary-mixtures-towards-three-aquatic-organisms
#10
Carole Di Poi, Katherine Costil, Valérie Bouchart, Marie-Pierre Halm-Lemeille
Despite a growing scientific attention on ecological impact of emerging pollutants (EPs) such as pharmaceuticals, personal care products, and pesticides, knowledge gaps remain regarding mixture toxicity and effects on aquatic organisms. Several EPs were screened in seawater (Normandy, France), and the ecotoxicity of five compounds, chosen on their occurrence in ecosystems and use worldwide, was assessed and were the biocides methylparaben (MP) and triclosan (TCS), a pesticide degradation product (AMPA), and the pharmaceuticals venlafaxine (VEN) and carbamazepine (CBZ)...
June 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28620227/gene-physical-activity-interactions-in-lower-extremity-performance-inflammatory-genes-crp-tnf-%C3%AE-and-lta-in-community-dwelling-elders
#11
Chiu-Shong Liu, Tsai-Chung Li, Chia-Ing Li, Li-Na Liao, Chuan-Wei Yang, Chih-Hsueh Lin, Nai-Hsin Meng, Wen-Yuan Lin, Sung-Lin Hu, Jen-Hao Hsiao, Fang-Yang Wu, Cheng-Chieh Lin
We assessed gene-gene and gene-physical activity interactions of polymorphisms in C-reactive protein (CRP), tumor necrosis factor-α (TNF-α), and lymphotoxin α (LTA) genes on lower extremity performance in community-dwelling elders in Taiwan. Five SNPs (rs1205, rs1130864, rs1800947, rs2794520, and rs3093059) of CRP gene, three SNPs (rs909253, rs1041981, and rs2239704) of LTA gene, and three SNPs (rs3093662, rs1800629, and rs1799964) of TNF-α gene of 472 unrelated elders were genotyped. Lower extremity performance included timed up-and-go test (TUG), walking speed, weight-adjusted leg press (waLP), and timed chair stand (TCS)...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28619967/a-four-factor-immunoscore-system-that-predicts-clinical-outcome-for-stage-ii-iii-gastric-cancer
#12
Ti Wen, Zhenning Wang, Yi Li, Zhi Li, Xiaofang Che, Yibo Fan, Shuo Wang, Jinglei Qu, Xianghong Yang, Kezuo Hou, Wenyang Zhou, Ling Xu, Ce Li, Jin Wang, Jing Liu, Liqun Chen, Jingdong Zhang, Xiujuan Qu, Yunpeng Liu
The American Joint Committee on Cancer (AJCC) staging system is insufficiently prognostic for operable gastric cancer (GC) patients, therefore complementary factors are under intense investigation. Although the focus is on immune markers, the prognostic impact of a single immune factor is minimal, due to complex antitumor immune responses. A more comprehensive evaluation may engender more accurate predictions. We analyzed immune factors by immunohistochemical staining in two independent cohorts. The association with patients' survival was analyzed by the Kaplan-Meier method...
June 15, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28611204/clinical-and-genome-wide-analysis-of-cisplatin-induced-peripheral-neuropathy-in-survivors-of-adult-onset-cancer
#13
M Eileen Dolan, Omar El Charif, Heather E Wheeler, Eric R Gamazon, Shirin Ardeshir-Rouhani-Fard, Patrick Monahan, Darren R Feldman, Robert Hamilton, David J Vaughn, Clair Beard, Chunkit Fung, Sophie D Fossa, Daniel L Hertz, Taisei Mushiroda, Michiaki Kubo, Lawrence H Einhorn, Nancy Cox, Lois Travis
Our purpose was to characterize the clinical influences, genetic risk factors, and gene mechanisms contributing to persistent cisplatin-induced peripheral neuropathy (CisIPN) in testicular cancer survivors (TCS).<br /><br />Experimental Design: <p>TCS given cisplatin-based therapy completed the validated EORTC QLQ-CIPN20 questionnaire. An ordinal CisIPN phenotype was derived and associations with age, smoking, excess drinking, hypertension, body mass index, diabetes, hypercholesterolemia, cumulative cisplatin dose, and self-reported health were examined for 680 TCS...
June 13, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28608900/theoretical-and-experimental-studies-on-three-water-stable-isostructural-paddlewheel-based-semiconducting-metal-organic-frameworks
#14
Xiaowei Yang, Yuan Zhang, Feng Li, Tiantian Guo, Yong Wu, Fengyan Jin, Min Fang, Yaqian Lan, Yafei Li, Yong Zhou, Zhigang Zou
Three water-stable isostructural metal-organic frameworks (MOFs) of the general formula [M2(TCS)(BPY)] (M = Co(1), Ni(2) and Cu(3); H4TCS = tetrakis(4-carboxyphenyl) silane, BPY = 4,4'-bipyridine) were synthesized and fully characterized. MOFs 1-3 are stable in pH = 5-11, 2-11, 3-11 aqueous solution respectively for at least 24 h at room temperature. Although H4TCS absorbs only UV light, MOFs 1-3 absorb both UV and visible light in broad ranges (250-800 nm) and absorb more visible light than the ligand BPY...
June 13, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28608858/telocytes-facts-speculations-and-myths-review-article
#15
Veronika Aleksandrovych, Artur Pasternak, Paweł Basta, Marek Sajewicz, Jerzy A Walocha, Krzysztof Gil
Telocyte (TC) is an interstitial cell type with a small cellular body and extremely long tentacle-like extensions. TCs were discovered a decade ago and have specifc morphological characteristics, immunohistochemical and secretome profiles, electrophysiological properties, microRNA expression. Moreover, they are different in gene expression from other cells. TCs play an important role in plenty of processes. Apparently, they are involved in homeostasis, remodelling, regeneration, repair, embryogenesis, angiogenesis and even tumorigenesis...
2017: Folia Medica Cracoviensia
https://www.readbyqxmd.com/read/28607158/the-two-component-signal-transduction-system-vxrab-positively-regulates-vibrio-cholerae-biofilm-formation
#16
Jennifer K Teschler, Andrew T Cheng, Fitnat H Yildiz
Two-component signal transduction systems (TCSs), typically composed of a sensor histidine kinase (HK) and a response regulator (RR), are the primary mechanism by which pathogenic bacteria sense and respond to extracellular signals. The pathogenic bacterium Vibrio cholerae is no exception and encodes for 52 RR genes. Using in frame deletion mutants of each RR gene, we performed a systematic analysis of their role in V. cholerae biofilm formation. We determined that 7 RRs impacted expression of an essential biofilm gene and found that the recently characterized RR, VxrB, regulates expression of key structural and regulatory biofilm-genes in V...
June 12, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28607098/correlates-of-self-reported-exposure-to-advertising-of-tobacco-products-and-electronic-cigarettes-across-28-european-union-member-states
#17
Filippos T Filippidis, Anthony A Laverty, Esteve Fernandez, Ute Mons, Olena Tigova, Constantine I Vardavas
BACKGROUND: Despite advertising bans in most European Union (EU) member states, outlets for promotion of tobacco products and especially e-cigarettes still exist. This study aimed to assess the correlates of self-reported exposure to tobacco products and e-cigarettee advertising in the EU. METHODS: We analysed data from wave 82.4 of the Eurobarometer survey (November-December 2014), collected through interviews in 28 EU member states (n=27 801 aged ≥15 years) and data on bans of tobacco advertising extracted from the Tobacco Control Scale (TCS, 2013)...
June 12, 2017: Tobacco Control
https://www.readbyqxmd.com/read/28605703/potential-effects-of-triclosan-on-spatial-displacement-and-local-population-decline-of-the-fish-poecilia-reticulata-using-a-non-forced-system
#18
Daniel C V R Silva, Cristiano V M Araújo, Julio C López-Doval, Morun B Neto, Flávio T Silva, Teresa C B Paiva, Marcelo L M Pompêo
Triclosan (TCS) is an emerging contaminant of concern in environmental studies due to its potential adverse effects on fish behavior. Since avoidance has been shown to be a relevant behavioral endpoint, our aims were: (i) to determine if TCS is able to trigger an avoidance response in Poecilia reticulata; (ii) to predict the population immediate decline (PID) caused by TCS exposure, by integrating lethality and avoidance responses; and (iii) to verify the overestimation of risk when mortality is assessed under forced exposure...
June 2, 2017: Chemosphere
https://www.readbyqxmd.com/read/28605648/impacts-of-triclosan-exposure-on-zebrafish-early-life-stage-toxicity-and-acclimation-mechanisms
#19
Falisse Elodie, Voisin Anne-Sophie, Silvestre Frédéric
Triclosan (TCS) is a broad spectrum antibacterial agent widely used in personal care products and present in most aquatic ecosystems. This study investigated the occurrence of triclosan acclimation and the biological mechanisms underlying the stress response triggered in early-life stage of zebrafish. Zebrafish eggs were first exposed to four different sublethal concentrations of TCS (2, 20, 50 and 100μg/L) for 7days following fertilization and subsequently exposed to a lethal concentration of TCS (1000μg/L)...
June 6, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28603626/physiologically-based-pharmacokinetic-modeling-of-tea-catechin-mixture-in-rats-and-humans
#20
Francis C P Law, Meicun Yao, Hui-Chang Bi, Stephen Lam
Although green tea (Camellia sinensis) (GT) contains a large number of polyphenolic compounds with anti-oxidative and anti-proliferative activities, little is known of the pharmacokinetics and tissue dose of tea catechins (TCs) as a chemical mixture in humans. The objectives of this study were to develop and validate a physiologically based pharmacokinetic (PBPK) model of tea catechin mixture (TCM) in rats and humans, and to predict an integrated or total concentration of TCM in the plasma of humans after consuming GT or Polyphenon E (PE)...
June 2017: Pharmacology Research & Perspectives
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