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https://www.readbyqxmd.com/read/30119020/selection-of-performance-reference-compound-prc-for-passive-sampling-of-pharmaceutical-residues-in-an-effluent-dominated-river
#1
Ying Li, Chi Yao, Daoping Zha, Wen Yang, Guanghua Lu
A passive sampling device, a polar organic chemical integrative sampler (POCIS), was used to monitor 13 pharmaceuticals and 8 transformation products in upstream and downstream wastewater treatment plant effluent. A POCIS laboratory calibration study was performed to determine uptake behavior and the effect of water flow on the sampling rate. Most compounds showed a linear accumulation, and the sampling rate values ranged from 0.031 to 0.559 L/day. The developed POCIS samplers were used in field experiments in a wastewater-impacted river...
July 31, 2018: Chemosphere
https://www.readbyqxmd.com/read/30100231/primary-sclerosing-cholangitis-response-to-the-combination-of-fibrates-with-ursodeoxycholic-acid-french-spanish-experience
#2
Sara Lemoinne, Albert Pares, Anna Reig, Karima Ben Belkacem, Astrid Donald Kemgang Fankem, Farid Gaouar, Raoul Poupon, Chantal Housset, Christophe Corpechot, Olivier Chazouillères
BACKGROUND & AIMS: In patients with primary sclerosing cholangitis (PSC), ursodeoxycholic acid (UDCA) treatment improves serum liver tests and surrogate markers of prognosis but has no proven effect on survival. Additional therapies are obviously needed. Fibrates, PPAR agonists with anti-cholestatic properties, have a beneficial effect in primary biliary cholangitis. The aim of this study was to evaluate the safety and efficacy of fibrates in PSC patients. METHODS: Retrospectively, we investigated PSC patients treated with fibrates (fenofibrate 200mg/day or bezafibrate 400mg/day) for at least 6 months in addition to UDCA, after an incomplete biochemical response (alkaline phosphatase [ALP] ≥1...
August 9, 2018: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/30004677/ammonia-monooxygenase-mediated-cometabolic-biotransformation-and-hydroxylamine-mediated-abiotic-transformation-of-micropollutants-in-an-aob-nob-coculture
#3
Yaochun Yu, Ping Han, Li-Jun Zhou, Zhong Li, Michael Wagner, Yujie Men
Biotransformation of various micropollutants (MPs) has been found to be positively correlated with nitrification in activated sludge communities. To further elucidate the roles played by ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB), we investigated the biotransformation capabilities of an NOB pure culture ( Nitrobacter sp.) and an AOB ( Nitrosomonas europaea)/NOB ( Nitrobacter sp.) coculture for 15 MPs, whose biotransformation was reported previously to be associated with nitrification...
July 30, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29929600/management-of-chronic-hepatic-itch
#4
REVIEW
Miriam M Düll, Andreas E Kremer
Hepatic itch remains among the most agonizing symptoms for affected patients and a major clinical challenge for physicians. Pruritus may occur in almost all liver diseases, particularly those with cholestatic features. Hepatic itch arises irrespective of the severity of the underlying liver disease or extent of cholestasis. Antihistamines are ineffective in hepatic itch. Therapeutic recommendations consist of a guideline-based stepwise approach, starting with the anion exchange resin cholestyramine, followed by rifampicin, naltrexone, and sertraline...
July 2018: Dermatologic Clinics
https://www.readbyqxmd.com/read/29928160/update-on-new-drugs-and-those-in-development-for-the-treatment-of-primary-biliary-cholangitis
#5
Runalia Bahar, Kimberly A Wong, Chung H Liu, Christopher L Bowlus
Primary biliary cholangitis (PBC) is an autoimmune inflammatory liver disease of the interlobular bile ducts that can lead to cirrhosis and liver failure. Until recently, the only effective treatment was ursodeoxycholic acid (UDCA). However, up to 40% of PBC patients have an inadequate response to UDCA and may continue to have disease progression. Several models have been developed, including the UK-PBC and GLOBE scores, to assist in identifying patients who may benefit from second-line therapies, such as the farnesoid X receptor (FXR) agonist obeticholic acid (OCA)...
March 2018: Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29913384/prediction-of-micropollutant-abatement-during-homogeneous-catalytic-ozonation-by-a-chemical-kinetic-model
#6
Yang Guo, Huijiao Wang, Bin Wang, Shubo Deng, Jun Huang, Gang Yu, Yujue Wang
Prediction of micropollutant abatements by catalytic ozonation is critical for its process design and optimization in water treatment. In this study, a chemical kinetic model based on ozone (O3 ) and hydroxyl radical (OH) rate constants (kO3 and kOH ) and O3 and OH exposures is proposed for the generalized prediction of micropollutant abatement by homogeneous catalytic ozonation. Several micropollutants with kO3 ranging from <0.15 to 1.0 × 106  M-1  s-1 were spiked in water matrices (deionized water and surface water) and then treated by ozonation alone and homogeneous catalytic ozonation with varying transition metals (Ti2+ , Co2+ , Ni2+ , Zn2+ , Cu2+ , Mn2+ , Fe2+ , and Fe3+ )...
October 1, 2018: Water Research
https://www.readbyqxmd.com/read/29909292/new-toxicogenetic-insights-and-ranking-of-the-selected-pharmaceuticals-belong-to-the-three-different-classes-a-toxicity-estimation-to-confirmation-approach
#7
Yi Liu, Muhammad Junaid, Yan Wang, Yu-Mei Tang, Wan-Ping Bian, Wen-Xu Xiong, Hai-Yang Huang, Chun-Di Chen, De-Sheng Pei
Tetracycline hydrochloride (TH), indomethacin (IM), and bezafibrate (BF) belong to the three different important classes of pharmaceuticals, which are well known for their toxicity and environmental concerns. However, studies are still elusive to highlight the mechanistic toxicity of these pharmaceuticals and rank them using both, the toxicity prediction and confirmation approaches. Therefore, we employed the next generation toxicity testing in 21st century (TOX21) tools and estimated the in vitro/vivo toxic endpoints of mentioned pharmaceuticals, and then confirmed them using in vitro/vivo assays...
August 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29874528/a-placebo-controlled-trial-of-bezafibrate-in-primary-biliary-cholangitis
#8
RANDOMIZED CONTROLLED TRIAL
Christophe Corpechot, Olivier Chazouillères, Alexandra Rousseau, Antonia Le Gruyer, François Habersetzer, Philippe Mathurin, Odile Goria, Pascal Potier, Anne Minello, Christine Silvain, Armand Abergel, Maryline Debette-Gratien, Dominique Larrey, Olivier Roux, Jean-Pierre Bronowicki, Jérôme Boursier, Victor de Ledinghen, Alexandra Heurgue-Berlot, Eric Nguyen-Khac, Fabien Zoulim, Isabelle Ollivier-Hourmand, Jean-Pierre Zarski, Gisèle Nkontchou, Sara Lemoinne, Lydie Humbert, Dominique Rainteau, Guillaume Lefèvre, Luc de Chaisemartin, Sylvie Chollet-Martin, Farid Gaouar, Farid-Hakeem Admane, Tabassome Simon, Raoul Poupon
BACKGROUND: Patients with primary biliary cholangitis who have an inadequate response to therapy with ursodeoxycholic acid are at high risk for disease progression. Fibrates, which are agonists of peroxisome proliferator-activated receptors, in combination with ursodeoxycholic acid, have shown potential benefit in patients with this condition. METHODS: In this 24-month, double-blind, placebo-controlled, phase 3 trial, we randomly assigned 100 patients who had had an inadequate response to ursodeoxycholic acid according to the Paris 2 criteria to receive bezafibrate at a daily dose of 400 mg (50 patients), or placebo (50 patients), in addition to continued treatment with ursodeoxycholic acid...
June 7, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29864738/physical-frailty-and-cognitive-function-among-men-with-cardiovascular-disease
#9
Galit Weinstein, Miri Lutski, Uri Goldbourt, David Tanne
AIMS: To assess the relationship between physical frailty and cognitive function among elderly men with a history of cardiovascular disease (CVD). METHODS: Three-hundred-twenty-four community-dwelling men with chronic CVD (mean age 77.2 ± 6.4 years) who previously participated in the Bezafibrate Infarction Prevention (BIP) trial (1990-1998) underwent assessment of frailty and cognitive function between 2011 and 2013. Physical frailty was assessed using the Fried phenotypic model, and cognitive performance overall and in memory, executive function, visuospatial and attention domains was evaluated using a validated set of computerized cognitive tests...
May 29, 2018: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/29859746/impact-of-lipid-modulation-on-the-intestinal-microcirculation-in-experimental-sepsis
#10
Annette Wegner, Dragan Pavlovic, Sebastian Haußmann-Vopel, Christian Lehmann
It has been observed, that patients who were treated medically for dyslipoproteinemia had a potentially lower risk of complications during infection and sepsis, regarding both morbidity and mortality. Aim of this study in experimental sepsis was to elucidate the impact of lipid metabolism modulation by simvastatin, HDL, or bezafibrate, respectively, on the intestinal microcirculation which plays a crucial role in the development of multiple organ failure in sepsis. Experimental sepsis was induced in Lewis rats by intravenous lipopolysaccharide (LPS) administration...
June 1, 2018: Microvascular Research
https://www.readbyqxmd.com/read/29851392/optimization-of-ozonation-and-peroxone-process-for-simultaneous-control-of-micropollutants-and-bromate-in-wastewater
#11
Songkeart Phattarapattamawong, Andreas Marius Kaiser, Ernis Saracevic, Heidemarie Paula Schaar, Jörg Krampe
The study aims to simultaneously control micropollutants and bromate formations by using ozonation and peroxone process. The batch experiments were run with variations in specific ozone dose (SOD) and hydrogen peroxide-to-ozone (H2 O2 /O3 ) ratio. Based on the removal by ozonation and peroxone, micropollutants were categorized into three groups: non-reactive compounds (i.e. amidotrizoate), moderately reactive compounds (i.e. metoprolol, acesulfame potassium, bezafibrate, and benzotriazole), and highly reactive compounds (i...
May 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29795304/nelfcd-and-ctsz-loci-are-associated-with-jaundice-stage-progression-in-primary-biliary-cholangitis-in-the-japanese-population
#12
Nao Nishida, Yoshihiro Aiba, Yuki Hitomi, Minae Kawashima, Kaname Kojima, Yosuke Kawai, Kazuko Ueno, Hitomi Nakamura, Noriyo Yamashiki, Tomohiro Tanaka, Sumito Tamura, Akira Mori, Shintaro Yagi, Yuji Soejima, Tomoharu Yoshizumi, Mitsuhisa Takatsuki, Atsushi Tanaka, Kenichi Harada, Shinji Shimoda, Atsumasa Komori, Susumu Eguchi, Yoshihiko Maehara, Shinji Uemoto, Norihiro Kokudo, Masao Nagasaki, Katsushi Tokunaga, Minoru Nakamura
Approximately 10-20% of patients with primary biliary cholangitis (PBC) progress to jaundice stage regardless of treatment with ursodeoxycholic acid and bezafibrate. In this study, we performed a GWAS and a replication study to identify genetic variants associated with jaundice-stage progression in PBC using a total of 1,375 patients (1,202 early-stage and 173 jaundice-stage) in a Japanese population. SNP rs13720, which is located in the 3'UTR of cathepsin Z (CTSZ), showed the strongest association (odds ratio [OR] = 2...
May 23, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29759229/evaluation-of-polar-organic-chemical-integrative-and-hollow-fibre-samplers-for-the-determination-of-a-wide-variety-of-organic-polar-compounds-in-seawater
#13
Leire Mijangos, Haizea Ziarrusta, Ailette Prieto, Oihane Zugazua, Olatz Zuloaga, Maitane Olivares, Aresatz Usobiaga, Albrecht Paschke, Nestor Etxebarria
The calibration of two passive samplers for the determination of 20 emerging organic compounds in seawater is described in this work: i) a new version of polar organic chemical integrative sampler (POCIS) containing 100 mg of mixed-mode anion exchanger (Strata X-AW) and 100 mg of polymeric HLB (Plexa) sorbent materials and using a highly porous Nylon membrane (30-μm pore size) and ii) polyethersulfone (PES) hollow fibre. Among the studied contaminants, herbicides, hormones, life style products (stimulants and artificial sweeteners), industrial chemicals (corrosion inhibitor and fluorinated compounds), personal care products and several pharmaceuticals were included...
August 1, 2018: Talanta
https://www.readbyqxmd.com/read/29744776/determination-of-nine-pharmaceutical-active-compounds-in-surface-waters-from-paraopeba-river-basin-in-brazil-by-ltpe-hplc-esi-ms-ms
#14
André Luis Correa de Barros, Felix Florian Schmidt, Sérgio Francisco de Aquino, Robson José de Cássia Franco Afonso
A simple, inexpensive, versatile, and environment-friendly extraction method, using low-temperature partitioning extraction (LTPE), was validated to quantify pharmaceutical-active compounds (PhACs) in surface water samples by high-performance liquid chromatography coupled to electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS). The PhACs analyzed were acetaminophen, bezafibrate, diclofenac, diltiazem, fluconazole, linezolid, miconazole, ondansetron hydrochloride, and trimethoprim. The detection and quantification limits ranged from 0...
May 9, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29715656/advanced-biological-activated-carbon-filter-for-removing-pharmaceutically-active-compounds-from-treated-wastewater
#15
Luca Sbardella, Joaquim Comas, Alessio Fenu, Ignasi Rodriguez-Roda, Marjoleine Weemaes
Through their release of effluents, conventional wastewater treatment plants (WWTPs) represent a major pollution point sources for pharmaceutically active compounds (PhACs) in water bodies. The combination of a biological activated carbon (BAC) filter coupled with an ultrafiltration (UF) unit was evaluated as an advanced treatment for PhACs removal at pilot scale. The BAC-UF pilot plant was monitored for one year. The biological activity of the biofilm that developed on the granular activated carbon (GAC) particles and the contribution of this biofilm to the overall removal of PhACs were evaluated...
September 15, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29695963/the-effects-of-ppar-stimulation-on-cardiac-metabolic-pathways-in-barth-syndrome-mice
#16
Caitlin Schafer, Vicky Moore, Nupur Dasgupta, Sabzali Javadov, Jeanne F James, Alexander I Glukhov, Arnold W Strauss, Zaza Khuchua
Aim: Tafazzin knockdown (TazKD) in mice is widely used to create an experimental model of Barth syndrome (BTHS) that exhibits dilated cardiomyopathy and impaired exercise capacity. Peroxisome proliferator-activated receptors (PPARs) are a group of nuclear receptor proteins that play essential roles as transcription factors in the regulation of carbohydrate, lipid, and protein metabolism. We hypothesized that the activation of PPAR signaling with PPAR agonist bezafibrate (BF) may ameliorate impaired cardiac and skeletal muscle function in TazKD mice...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29675575/bezafibrate-prevents-glycine-induced-increase-of-antioxidant-enzyme-activities-in-rat-striatum
#17
Belisa Parmeggiani, Mateus Grings, Nevton Teixeira da Rosa-Junior, Renata Britto, Moacir Wajner, Guilhian Leipnitz
Non-ketotic hyperglycinemia (NKH) is a severe neurological disorder caused by defects in glycine (GLY) catabolism and characterized by a high cerebrospinal fluid/plasma GLY ratio. Treatment is often ineffective and limited to the control of symptoms and detoxification of GLY. In the present work, we investigated the in vivo effects of GLY intracerebroventricular administration on oxidative stress parameters in rat striatum, cerebral cortex, and hippocampus. In vitro effects of GLY were also evaluated in striatum...
April 19, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29584765/dissimilar-flexibility-of-%C3%AE-and-%C3%AE-subunits-of-human-adult-hemoglobin-influences-the-protein-dynamics-and-its-alteration-induced-by-allosteric-effectors
#18
Gusztáv Schay, András D Kaposi, László Smeller, Krisztián Szigeti, Judit Fidy, Levente Herenyi
The general question by what mechanism an "effector" molecule and the hemes of hemoglobin interact over widely separated intramolecular distances to change the oxygen affinity has been extensively investigated, and still has remained of central interest. In the present work we were interested in clarifying the general role of the protein matrix and its dynamics in the regulation of human adult hemoglobin (HbA). We used a spectroscopy approach that yields the compressibility (κ) of the protein matrix around the hemes of the subunits in HbA and studied how the binding of heterotropic allosteric effectors modify this parameter...
2018: PloS One
https://www.readbyqxmd.com/read/29581037/the-association-of-body-mass-index-and-20-year-all-cause-mortality-among-patients-with-stable-coronary-artery-disease
#19
Anan Younis, Arwa Younis, Ronen Goldkorn, Ilan Goldenberg, Yael Peled, Boaz Tzur, Robert Klempfner
BACKGROUND: Limited data exist regarding the long-term association of body mass index (BMI) and all-cause mortality among patients with stable coronary artery disease (CAD). Accordingly, the aim of this study is to explore the association between BMI and long-term all-cause mortality among patients with stable CAD. METHODS: Our study included 15,357 patients with stable CAD who were enrolled in the Bezafibrate Infarction Prevention (BIP) registry between February, 1990 and October1992, and subsequently followed-up through December 2014...
March 3, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29574198/pilot-scale-evaluation-of-micropollutant-abatements-by-conventional-ozonation-uv-o-3-and-an-electro-peroxone-process
#20
Weikun Yao, Syed Waqi Ur Rehman, Huijiao Wang, Hongwei Yang, Gang Yu, Yujue Wang
The electro-peroxone (E-peroxone) process is an emerging ozone-based advanced oxidation process (AOP) that has shown large potential for micropollutant abatement in water treatment. To evaluate its performance under more realistic conditions of water treatment, a continuous-flow pilot E-peroxone system was developed and compared with conventional ozonation and a UV/O3 process for micropollutant abatements in various water matrices (groundwater, surface water, and secondary wastewater effluent) in this study...
July 1, 2018: Water Research
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