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Triclosan

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https://www.readbyqxmd.com/read/28427038/urinary-triclosan-concentrations-during-pregnancy-and-birth-outcomes
#1
Taylor M Etzel, Antonia M Calafat, Xiaoyun Ye, Aimin Chen, Bruce P Lanphear, David A Savitz, Kimberly Yolton, Joseph M Braun
BACKGROUND: Triclosan is an antimicrobial chemical used in consumer products, and exposure is ubiquitous among pregnant women in the United States. Triclosan may reduce the levels of thyroid hormones that are important for fetal growth and development. OBJECTIVE: We investigated the relationship of prenatal triclosan exposure with birth anthropometry and gestational duration. METHODS: We used data from 378 mother-child pairs participating in the Health Outcomes and Measures of the Environment (HOME) Study, a prospective pregnancy and birth cohort from Cincinnati, OH...
April 17, 2017: Environmental Research
https://www.readbyqxmd.com/read/28412629/toxicological-interactions-of-ibuprofen-and-triclosan-on-biological-activity-of-activated-sludge
#2
Georgiana Amariei, Karina Boltes, Roberto Rosal, Pedro Letón
The growing use of pharmaceutical and personal care products increases their concentrations in the wastewater entering treatment plants and their levels into biological reactors. The most extended biological wastewater treatment is the activated sludge process. The toxicity of ibuprofen and triclosan, individually and combined, was studied by tracking the biological activity of the activated sludge measuring oxygen uptake rate and the inhibition of the esterase activity. Short-term exposure produced significant inhibition in oxygen uptake, with lower damage to enzymatic activity...
April 6, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28407587/removal-of-novel-antiandrogens-identified-in-biological-effluents-of-domestic-wastewater-by-activated-carbon
#3
Dehua Ma, Lujun Chen, Rui Liu
Environmental antiandrogenic (AA) contaminants in effluents from wastewater treatment plants have the potential for negative impacts on wildlife and human health. The aim of our study was to identify chemical contaminants with likely AA activity in the biological effluents and evaluate the removal of these antiandrogens (AAs) during advanced treatment comprising adsorption onto granular activated carbon (GAC). In this study, profiling of AA contaminants in biological effluents and tertiary effluents was conducted using effect-directed analysis (EDA) including high performance liquid chromatography (HPLC) fractionation, a recombinant yeast screen containing androgen receptor (YAS), in combination with mass spectrometry analyses...
April 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28401767/expanded-target-chemical-analysis-reveals-extensive-mixed-organic-contaminant-exposure-in-u-s-streams
#4
Paul M Bradley, Celeste A Journey, Kristin M Romanok, Larry B Barber, Herbert T Buxton, William T Foreman, Edward T Furlong, Susan T Glassmeyer, Michelle L Hladik, Luke R Iwanowicz, Daniel K Jones, Dana W Kolpin, Kathryn M Kuivila, Keith A Loftin, Marc A Mills, Michael T Meyer, James L Orlando, Timothy J Reilly, Kelly L Smalling, Daniel L Villeneuve
Surface water from 38 streams nationwide was assessed using 14 target-organic methods (719 compounds). Designed-bioactive anthropogenic contaminants (biocides, pharmaceuticals) comprised 57% of 406 organics detected at least once. The 10 most-frequently detected anthropogenic-organics included eight pesticides (desulfinylfipronil, AMPA, chlorpyrifos, dieldrin, metolachlor, atrazine, CIAT, glyphosate) and two pharmaceuticals (caffeine, metformin) with detection frequencies ranging 66-84% of all sites. Detected contaminant concentrations varied from less than 1 ng L(-1) to greater than 10 μg L(-1), with 77 and 278 having median detected concentrations greater than 100 ng L(-1) and 10 ng L(-1), respectively...
April 12, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28399780/triclosan-coated-sutures-for-the-prevention-of-surgical-site-infections-a-meta-analysis
#5
Athanasios A Konstantelias, Chrysi Stefania I Andriakopoulou, Sofia Mourgela
BACKGROUND: The scope of this article is to perform a meta-analysis of the studies that compare the use of triclosan-coated sutures (TCS) to uncoated sutures in prevention of surgical-site infections (SSIs). METHODS: A systematic search of randomized and non-randomized studies was carried out on Pubmed and Scopus databases until July 2016. RESULTS: The meta-analysis of 30 studies (19 randomized, 11 non-randomized; 15,385 procedures) gave evidence that TCS were associated with a lower risk of SSIs (risk ratio [RR] = 0...
June 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/28399502/molecular-toxicity-of-triclosan-and-carbamazepine-to-green-algae-chlorococcum-sp-a-single-cell-view-using-synchrotron-based-fourier-transform-infrared-spectromicroscopy
#6
Xiaying Xin, Guohe Huang, Xia Liu, Chunjiang An, Yao Yao, Harold Weger, Peng Zhang, Xiujuan Chen
Although pharmaceuticals and personal care products have been used and introduced into the environment in large quantities, little information on potential ecological risks is currently available considering their effects on living organisms. We verified the feasibility of using synchrotron-based Fourier Transform Infrared (SR-FTIR) spectromicroscopy to explore in vivo toxic effects on single living Chlorococcum sp. cells. The study provided important information to achieve a better understanding of the toxic mechanism of triclosan and carbamazepine on living algae Chlorococcum sp...
April 8, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28374716/-assessment-of-the-effectiveness-of-the-suture-with-triclosan-coated-in-emergency-surgery
#7
V V Darvin, D S Lobanov, E A Krasnov, A N Gvozdetsky
The aim of the study was to evaluate the effectiveness of the suture with a coating of triclosan on the dynamics of postoperative course in emergency surgical patients, comparing the postoperative period in the application of the suture with coating and without it. DESIGN: A prospective cohort with a solid retrospective control group. The efficiency of the application of the suture with a coating of triclosan on the flow dynamics in the early postoperative period 678 emergency surgical patients, comparing the postoperative period when using the coated suture material (292 patients) and without (386 patients)...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28370680/rapid-and-sensitive-determination-of-multiple-endocrine-disrupting-chemicals-by-ultrasound-assisted-in-situ-derivatization-dispersive-liquid-liquid-microextraction-coupled-with-uhplc-ms-ms
#8
Na Wei, Zhenjia Zheng, Yuhua Wang, Yanduo Tao, Yun Shao, Shuyun Zhu, Jinmao You, Xian-En Zhao
RATIONALE: Endocrine disrupting chemicals (EDCs) in environment samples and food stuffs are an increasing serious public health issue due to their potency to interfere and deregulate several aspects of the endocrine system. Because of their extremely low abundance, it remains a challenging task to develop a sensitive detection method. METHODS: 4'-Carbonyl chloride rosamine (CCR) was used as a derivatization reagent for EDCs for the first time. A new ultrasound-assisted in situ derivatization-dispersive liquid-liquid microextraction (UA-DLLME with in situ derivatization) method for multiple EDCs including five estrogens, two alkylphenols, eight bisphenols, seven parabens and triclosan coupled with ultra high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) has been developed and validated...
March 31, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28366506/pulmonary-apoptotic-and-oxidative-damaging-effects-of-triclosan-alone-or-in-combination-with-fluoride-in-sprague-dawley-rats
#9
Amany Tharwat Mohammed, Amany Abdel-Rahman Mohamed, Haytham Ali
This study aimed to assess the potential apoptotic and oxidative damaging impacts of Triclosan (TCS) and Sodium Fluoride (NaF) administered separately or in combination, in rats for thirty days. For this purpose, forty immature female Sprague-Dawley rats were equally allocated into five groups. TCS group administered 185mg TCS/kg Bw dissolved in distilled water (DW), while its control group received only DW. NaF group was given 50mg/kg NaF in corn oil BW and its respective control had corn oil alone. The co-treated group was administered TCS and NaF...
March 30, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28364207/effects-of-applying-biosolids-to-soils-on-the-adsorption-and-bioavailability-of-17%C3%AE-ethinylestradiol-and-triclosan-in-wheat-plants
#10
Romina Cantarero, Pablo Richter, Sally Brown, Loreto Ascar, Inés Ahumada
Biosolids contain inorganic and organic contaminants, including pharmaceutical and personal care products (PPCPs) that have accounted for a series of emerging contaminants, such as triclosan (TCS) and the hormone 17α-ethinylestradiol (EE2). The general aim of this study was to evaluate the effects of biosolid application on EE2 and TCS adsorption and bioavailability in soils through testing with wheat plants. For the bioavailability study, sand and two soils, Lampa and Lo Prado, were used. The sand and soils were treated using two biosolid application rates (0 and 90 mg ha(-1)), and the EE2 and TCS concentrations in the biosolids were determined as 0...
April 1, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28363428/triclosan-alterations-of-estuarine-phytoplankton-community-structure
#11
James L Pinckney, Laura Thompson, Sarah Hylton
Antimicrobial additives in pharmaceutical and personal care products are a major environmental concern due to their potential ecological impacts on aquatic ecosystems. Triclosan (TCS) has been used as an antiseptic, disinfectant, and preservative in various media. The sublethal and lethal effects of TCS on estuarine phytoplankton community composition were investigated using bioassays of natural phytoplankton communities to measure phytoplankton responses to different concentrations of TCS ranging from 1 to 200μgl(-1)...
March 28, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28356401/exposure-to-endocrine-disruptors-during-adulthood-consequences-for-female-fertility
#12
Saniya Rattan, Changqing Zhou, Catheryne Chiang, Sharada Mahalingam, Emily Brehm, Jodie Flaws
Endocrine disrupting chemicals are ubiquitous chemicals that exhibit endocrine disrupting properties in both humans and animals. Female reproduction is an important process, which is regulated by hormones and is susceptible to the effects of exposure to endocrine disrupting chemicals. Disruptions in female reproductive functions by endocrine disrupting chemicals may result in subfertility, infertility, improper hormone production, estrous and menstrual cycle abnormalities, anovulation, and early reproductive senescence...
March 29, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28342992/estimating-removals-of-contaminants-of-emerging-concern-from-wastewater-treatment-plants-the-critical-role-of-wastewater-hydrodynamics
#13
Zeina Baalbaki, Tamanna Sultana, Chris Metcalfe, Viviane Yargeau
Accurate data is needed to evaluate the capacity of wastewater treatments plants (WWTPs) to remove contaminants of emerging concern (CECs). The variability of CEC removals reported in the literature has raised questions about the methods used to estimate removals. In this study, we used the recently proposed "fractionated approach" to account for the influence of hydrodynamics in WWTPs and applied this method for estimating the removal of 23 target CECs. Data on the conductivity and temperature of wastewater at two WWTPs were used to determine the hydraulic model that best described the flow regime of treatment units...
March 19, 2017: Chemosphere
https://www.readbyqxmd.com/read/28339349/is-triclosan-a-neurotoxic-agent
#14
Joanna A Ruszkiewicz, Shaojun Li, Maliya B Rodriguez, Michael Aschner
Triclosan (TCS) is an antibacterial agent that has been used in many products since 1960s. Given its broad usage as an antiseptic TCS is present ubiquitously in the environment. Trace levels of TCS continue to be detected in many organisms, and it has been shown to be particularly toxic to aquatic species. The mechanisms underlying TCS-mediated toxicity include hormone dyshomeostasis, induction of oxidative stress, apoptosis and inflammation. Although TCS has been considered to be non-toxic to mammals, the adverse effects of continuous, long-term and low concentration exposure remain unknown...
2017: Journal of Toxicology and Environmental Health. Part B, Critical Reviews
https://www.readbyqxmd.com/read/28336031/clinical-issues-april-2017
#15
Amber Wood
Patient involvement in hand hygiene Key words: patient engagement, hand hygiene, hand washing stations, hand hygiene promotion. Alcohol-based surgical hand rubs in the OR Key words: hand hygiene, hand rub, dispenser. Personal hand hygiene dispensers Key words: hand hygiene, hand rub, hand rub dispenser, personal dispenser. Hand soap Key words: soap, hand hygiene, hand wash, plain soap, triclosan. Disposal of water used for plaster application in scrub sinks Key words: plaster, pour, sink, scrub sink. Multiple hand hygiene indications Key words: hand hygiene, hand wash, hand rub...
April 2017: AORN Journal
https://www.readbyqxmd.com/read/28334672/effects-of-4-mbc-and-triclosan-in-embryos-of-the-frog-pelophylax-perezi
#16
Diana Martins, Marta S Monteiro, Amadeu M V M Soares, Carla Quintaneiro
The widespread and increasing use of personal care products (PCPs) have led to environmental contamination by substances included in these products. These substances have been detected in aquatic compartments and shown to cause adverse effects on non-target aquatic organisms. In this work toxicity of the antimicrobial triclosan (TCS) and of the UV-filter 3-(4-methylbenzylidene) camphor (4-MBC) was assessed in the embryos of Perez' frog Pelophylax perezi. Lethal and sub-lethal parameters were evaluated in embryos in Gosner stage 8-9 exposed to 0...
March 15, 2017: Chemosphere
https://www.readbyqxmd.com/read/28327805/antifungal-activity-of-synthetic-antiseptics-and-natural-compounds-against-candida-dubliniensis-before-and-after-in-vitro-fluconazole-exposure
#17
Cássia Franco Reginato, Laíssa Arévalo Bandeira, Régis Adriel Zanette, Janio Morais Santurio, Sydney Hartz Alves, Cristiane Cademartori Danesi
INTRODUCTION: This study evaluated the susceptibilities of oral candidiasis-derived Candida albicans, fluconazole-resistant (FR) Candida dubliniensis, and fluconazole-susceptible (FS) C. dubliniensis to synthetic antiseptics [chlorhexidine gluconate (CHX), cetylpyridinium chloride (CPC), and triclosan (TRC)] and natural compounds (carvacrol, eugenol and thymol). METHODS: Susceptibility tests were performed based on the M27-A3 reference method. The fluconazole-resistant C...
January 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28322267/exposure-of-pregnant-mice-to-triclosan-impairs-placental-development-and-nutrient-transport
#18
Xinyuan Cao, Xu Hua, Xiaoli Wang, Ling Chen
Triclosan (TCS) is associated with spontaneous abortions and fetal growth restriction. Here, we showed that when pregnant mice were treated with 8 mg/kg TCS (8-TCS mice) on gestational days (GD) 6-18 fetal body weights were lower than controls. Placental weights and volumes were reduced in 8-TCS mice. The placental proliferative cells and expression of PCNA and Cyclin D3 on GD13 were remarkably decreased in 8-TCS mice. The decreases in activities and expression of placental System A amino acid or glucose transporters on GD14 and GD17 were observed in 8-TCS mice...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28300022/optimization-of-a-modified-quechers-method-for-multiresidue-analysis-of-pharmaceuticals-and-personal-care-products-in-sewage-and-surface-water-by-lc-ms-ms
#19
Akanksha S Kachhawaha, Pranav M Nagarnaik, Manjusha Jadhav, Anjali Pudale Pawan K Labhasetwar, Kaushik Banerjee
A quick, sensitive multiresidue method was developed for the analysis of 19 multiclass pharmaceuticals and personal care products (PPCPs) in surface water and sewage water. The proposed modified QuEChERS method involved the extraction of water samples (10 mL) with acetonitrile (10 mL) after the addition of 1% acetic acid, 4 g magnesium sulfate, and 0.2 g ammonium acetate, and was validated in distilled water, surface water, and sewage water with respect to linearity, LOD and LOQ, precision, and accuracy. The LOD and LOQ varied within the ranges of 0...
March 16, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28293709/metabolic-perturbation-to-enhance-polyketide-and-nonribosomal-peptide-antibiotic-production-using-triclosan-and-ribosome-targeting-drugs
#20
Yukinori Tanaka, Masumi Izawa, Yoshikazu Hiraga, Yuya Misaki, Tomoko Watanabe, Kozo Ochi
Although transcriptional activation of pathwayspecific positive regulatory genes and/or biosynthetic genes is primarily important for enhancing secondary metabolite production, reinforcement of substrate supply, as represented by primary metabolites, is also effective. For example, partial inhibition of fatty acid synthesis with ARC2 (an analog of triclosan) was found to enhance polyketide antibiotic production. Here, we demonstrate that this approach is effective even for industrial high-producing strains, for example enhancing salinomycin production by 40%, reaching 30...
March 14, 2017: Applied Microbiology and Biotechnology
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