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https://www.readbyqxmd.com/read/28817665/concentrations-of-trace-elements-in-human-milk-comparisons-among-women-in-argentina-namibia-poland-and-the-united-states
#1
Laura D Klein, Alicia A Breakey, Brooke Scelza, Claudia Valeggia, Grazyna Jasienska, Katie Hinde
Human milk contains essential micronutrients for growth and development during early life. Environmental pollutants, such as potentially toxic metals, can also be transferred to the infant through human milk. These elements have been well-studied, but changing diets and environments and advances in laboratory technology require re-examining these elements in a variety of settings. The aim of this study was to characterize the concentrations of essential and toxic metals in human milk from four diverse populations...
2017: PloS One
https://www.readbyqxmd.com/read/28817554/occupational-distribution-of-campylobacteriosis-and-salmonellosis-cases-maryland-ohio-and-virginia-2014
#2
Chia-Ping Su, Marie A de Perio, Kathleen Fagan, Meghan L Smith, Ellen Salehi, Seth Levine, Karen Gruszynski, Sara E Luckhaupt
Campylobacter and Salmonella are leading causes of bacterial gastroenteritis in the United States and are estimated to cause >1 million episodes of domestically acquired illness annually (1). Campylobacter and Salmonella are primarily transmitted through contaminated food, but animal-to-human and human-to-human transmission can also occur (2,3). Although occupationally acquired infections have been reported, occupational risk factors have rarely been studied. In 2015, the Occupational Safety and Health Administration (OSHA) identified 63 suspected or confirmed cases of Campylobacter infection over 3...
August 18, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28817437/surgicopathological-quality-control-and-protocol-adherence-to-lymphadenectomy-in-the-critics-gastric-cancer-trial
#3
Yvette H M Claassen, Wobbe O de Steur, Henk H Hartgrink, Johan L Dikken, Johanna W van Sandick, Nicole C T van Grieken, Annemiek Cats, Anouk K Trip, Edwin P M Jansen, Willemina M Meershoek-Klein Kranenbarg, Jeffrey P B M Braak, Hein Putter, Mark I van Berge Henegouwen, Marcel Verheij, Cornelis J H van de Velde
OBJECTIVE: The purpose of this study was to evaluate surgicopathological quality and protocol adherence for lymphadenectomy in the CRITICS trial. SUMMARY OF BACKGROUND DATA: Surgical quality assurance is a key element in multimodal studies for gastric cancer. In the multicenter CRITICS trial (ChemoRadiotherapy after Induction chemotherapy In Cancer of the Stomach), patients with resectable gastric cancer were randomized for preoperative chemotherapy, followed by gastrectomy with a D1+ lymphadenectomy (removal of stations 1 to 9 and 11), followed by either chemotherapy or chemoradiotherapy...
August 16, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28817263/responses-of-periphyton-to-fe2o3-nanoparticles-a-physiological-and-ecological-basis-for-defending-nanotoxicity
#4
Jun Tang, Ningyuan Zhu, Yan Zhu, Junzhuo Liu, Chenxi Wu, Philip G Kerr, Yonghong Wu, Kwan Sing Paul Kwan-Sing Lam
The toxic effects of nanoparticles on individual organisms have been widely investigated, while few studies have investigated the effects of nanoparticles on ubiquitous multi-community microbial aggregates. Here, periphyton as a model of microbial aggregates, was employed to investigate the responses of microbial aggregates exposed continuously to Fe2O3 nanoparticles (5.0 mg L-1) for 30 days. The Fe2O3 nanoparticles enter the microbial cells of the periphyton and disperse in the cytoplasm. The exposure to Fe2O3 nanoparticles results in the chlorophyll (a, b and c) contents of periphyton increasing and the total antioxidant capacity decreasing...
August 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28817132/plasma-of-argon-cleaning-treatment-on-implant-abutments-in-periodontally-healthy-patients-six-years-postloading-results-of-a-randomized-controlled-trial
#5
Luigi Canullo, Marco Tallarico, Miguel Penarrocha, Giuseppe Corrente, Joseph Fiorellini, David Penarrocha
The aim of this randomized, match-paired, triple-blinded, controlled clinical trial was to assess the 6-year radiographic changes around customized platform-switched abutments placed according to the one abutment-one time concept, with and without plasma of argon cleaning treatment. A total of 20 periodontally healthy patients received one maxillary implant between the premolars. Immediately before stage 2 surgery and abutment connection, patients were randomly assigned to the control (cleaning protocol by steam) or test group (plasma of argon treatment)...
September 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28817106/ag-coated-heterostructures-of-zno-tio%C3%A2-delaminated-montmorillonite-as-solar-photocatalysts
#6
Carolina Belver, Mariana Hinojosa, Jorge Bedia, Montserrat Tobajas, Maria Ariadna Alvarez, Vicente Rodríguez-González, Juan Jose Rodriguez
Heterostructures based on ZnO-TiO₂/delaminated montmorillonite coated with Ag have been prepared by sol-gel and photoreduction procedures, varying the Ag and ZnO contents. They have been thoroughly characterized by XRD, WDXRF, UV-Vis, and XPS spectroscopies, and N₂ adsorption, SEM, and TEM. In all cases, the montmorillonite was effectively delaminated with the formation of TiO₂ anatase particles anchored on the clay layer's surface, yielding porous materials with high surface areas. The structural and textural properties of the heterostructures synthesized were unaffected by the ZnO incorporated...
August 17, 2017: Materials
https://www.readbyqxmd.com/read/28817087/the-preparation-and-identification-of-a-monoclonal-antibody-against-domoic-acid-and-establishment-of-detection-by-indirect-competitive-elisa
#7
Abdullah F U H Saeed, Sumei Ling, Jun Yuan, Shihua Wang
Domoic acid (DA) is a potent toxin, marine biotoxin, and primarily produced by Pseudo-nitzschia. The DA hapten was coupled with bovine serum albumin (BSA), and ovalbumin (OVA) as carrier proteins. DA-BSA conjugate was used as immunogen and DA-OVA as coating antigen. Cell fusion between spleen cells and sp2/0 myeloma cells developed 1C3 hybridoma clone producing 1C3 monoclonal antibody (mAb). Hybridoma was injected into the mice to produce ascites, and further purified by caprylic acid/ammonium sulfate method...
August 17, 2017: Toxins
https://www.readbyqxmd.com/read/28816638/high-prevalence-of-multidrug-resistant-community-acquired-methicillin-resistant-staphylococcus-aureus-at-the-largest-veterinary-teaching-hospital-in-costa-rica
#8
Irene Rojas, Elías Barquero-Calvo, Joany C van Balen, Norman Rojas, Lohendy Muñoz-Vargas, Armando E Hoet
Methicillin-resistant Staphylococcus aureus (MRSA) is a pathogen associated with severe infections in companion animals present in the community, and it is diagnosed in animals admitted to veterinary hospitals. However, reports that describe the circulation of MRSA in animal populations and veterinary settings in Latin America are scarce. Therefore, the objective of this study was to determine the prevalence and investigate the molecular epidemiology of MRSA in the environment of the largest veterinary teaching hospital in Costa Rica...
August 17, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28816607/investigation-of-a-green-process-for-the-polymerization-of-catechin
#9
Ayşe Ezgi Ünlü, Brinda Prasad, Kishan Anavekar, Paul Bubenheim, Andreas Liese
Flavonoids are polyphenolic secondary plant metabolites which possess antioxidant and anti-inflammatory properties. Besides, they have been shown to exhibit increased antioxidant properties in their polymerized form. Catechins are one of the attractive class of flavonoids which belong to the group of flavan-3-ols. Polymerization of catechins have been investigated in numerous studies indicating the requirement of certain amount of organic solvent to provide the solubility of the monomer. However, many research projects have been conducted recently in order to replace toxic organic contaminants of the processes with environmentally friendly solvents...
August 17, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28816381/non-exposed-endoscopic-wall-inversion-surgery-for-submucosal-tumor-of-the-duodenum-a-novel-case-report
#10
Prasit Mahawongkajit, Ajjana Techagumpuch, Pakkavuth Chanswangphuvana
Laparoscopic and endoscopic cooperative surgery for duodenal tumor is the precise oncologic resection procedure and the closure of the defect (1). Non-exposed Endoscopic Wall-inversion Surgery (NEWS) is a novel minimally invasive technique for gastric submucosal mass (SMT) and early gastric cancer having advantageous precision to determine the resection line with no risk of peritoneal contamination (2-5). We describe the NEWS technique that we applied and performed for a small duodenal SMT. This article is protected by copyright...
August 17, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28816299/-application-of-intraoperative-cell-salvage-combined-with-leukocyte-depletion-filter-on-radical-nephrectomy-for-renal-carcinoma-with-inferior-vena-cava-tumor-thrombus-2-case-reports
#11
H Zeng, X Y Rong, X Q Zhang, X Y Guo
Intraoperative cell salvage (IOCS) has been widely used to reduce allogeneic blood transfusion and prevent blood transfusion related complications during surgery. However, due to the risk of transfusion related reaction, contamination, and immunological reaction, its use for tumor patients has been controversial and limited. To explore the feasibility of the application of IOCS in cancer patients, we reported 2 cases of renal cell carcinoma (RCC) with tumor embolism in IVC that underwent radical nephrectomy,and inferior caval venous thrombectomy receiving IOCS combined with leukocyte depletion filter (LDF) from August 2016 to November 2016 in our hospital...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28815972/assessing-the-ideal-microwave-duration-for-disinfection-of-sinus-irrigation-bottles-a-quantitative-study
#12
E Nikolaou, E Mitsi, D M Ferreira, A Bartolo, S C Leong
OBJECTIVES: Saline irrigation of the nasal cavity and paranasal sinuses by one-way valved sinus containers has a recognised role in the management of chronic rhinosinusitis. However, bacterial recontamination of irrigation bottles through backflow from the sinonasal cavity is a concern in recurrent sinus cavity infections. While patients are encouraged to clean the irrigation bottles regularly, there remains significant concern that the use of contaminated bottles may perpetuate chronic rhinosinusitis...
August 16, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28815790/evaluation-of-wastewater-treatment-by-ozonation-for-reducing-the-toxicity-of-contaminants-of-emerging-concern-to-rainbow-trout-oncorhynchus-mykiss
#13
Nicholas Maya, Jaden Evans, Deniz Nasuhoglu, Siavash Isazadeh, Viviane Yargeau, Chris D Metcalfe
While conventional wastewater treatment technologies are effective at removing many contaminants of emerging concern (CECs) from municipal wastewater, some contaminants are not removed efficiently. Ozonation may be a treatment option for reducing the concentrations of recalcitrant CECs in wastewater, but this process may generate toxic transformation-products. In the present study, we conducted semi-batch experiments to ozonate municipal wastewater effluent (WWE) spiked with 5 commonly detected CECs. The purpose of the study was to evaluate whether ozonation increased or decreased biological responses indicative of sublethal toxicity in juvenile rainbow trout (Oncorhynchus mykiss) injected intraperitoneally (i...
August 16, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28815697/case-control-study-of-chronic-low-level-exposure-of-inorganic-arsenic-species-and-non-melanoma-skin-cancer
#14
Tae-Hoon Kim, Jeong-Wook Seo, Young-Seoub Hong, Ki-Hoon Song
A significant relationship between arsenic exposure and non-melanoma skin cancer (NMSC) is well known. The toxicity of arsenics which develop NMSC is dependent on their species. Accordingly, total arsenic levels are unreliable for risk assessment of NMSC. However, there are few studies on quantitative exposure assessment of arsenic species in NMSC patients. To validate the contribution of each arsenic species to NMSC, we compared the creatinine-adjusted urinary concentration of arsenic species in NMSC patients and community controls...
August 16, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28815621/red-blood-cell-sedimentation-of-apheresis-granulocytes
#15
Michelle A Lodermeier, Karen M Byrne, Willy A Flegel
Sedimentation of Apheresis Granulocyte components removes red blood cells. It is used to increase the blood donor pool when blood group-compatible donors cannot be recruited for a patient because of a major ABO incompatibility or incompatible red blood cell antibodies in the recipient. Because granulocytes have little ABO and few other red blood cell antigens on their membrane, such incompatibility lies mostly with the contaminating red blood cells. Video Clip S1 shows the process of red blood cell sedimentation of an Apheresis Granulocyte component...
August 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28815459/a-roadmap-for-reducing-cardiac-device-infections-a-review-of-epidemiology-pathogenesis-and-actionable-risk-factors-to-guide-the-development-of-an-infection-prevention-program-for-the-electrophysiology-laboratory
#16
REVIEW
Westyn Branch-Elliman
PURPOSE OF REVIEW: Cardiovascular implantable electronic device (CIED) infections are highly morbid, common, and costly, and rates are increasing (Sohail et al. Arch Intern Med 171(20):1821-8 2011; Voigt et al. J Am Coll Cardiol 48(3):590-1 2006). Factors that contribute to the development of CIED infections include patient factors (comorbid conditions, self-care, microbiome), procedural details (repeat procedure, contamination during procedure, appropriate pre-procedural prep, and antimicrobial use), environmental and organizational factors (patient safety culture, facility barriers, such as lack of space to store essential supplies, quality of environmental cleaning), and microbial factors (type of organism, virulence of organism)...
August 16, 2017: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/28815444/gladius-and-its-derivatives-as-potential-biosorbents-for-marine-diesel-oil
#17
Mayra F Preto, Sérgio P Campana-Filho, Anderson Fiamingo, Ivana C Cosentino, Maria C Tessari-Zampieri, Denis M S Abessa, Ágata F Romero, Isabella C Bordon
The demand for low cost and effective materials to remove contaminants such as residues of oil spills has encouraged studies on new biosorbents produced from wastes. Considering the overgeneration of fishing residues and the necessity to provide an alternative purpose for such materials, this study aimed to evaluate squid gladius and its derivatives (β-chitin and chitosan) as sorbents to remove marine diesel oil (MDO) from fresh and artificial seawater. It was also executed an attempted to improve their performances through a high-intensity ultrasound treatment (UT-gladius and UT-β-chitin)...
August 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28815413/biosurfactants-during-in-situ-bioremediation-factors-that-influence-the-production-and-challenges-in-evalution
#18
Andressa Decesaro, Thaís Strieder Machado, Ângela Carolina Cappellaro, Christian Oliveira Reinehr, Antônio Thomé, Luciane Maria Colla
Research on the influence of biosurfactants on the efficiency of in situ bioremediation of contaminated soil is continuously growing. Despite the constant progress in understanding the mechanisms involved in the effects of biosurfactants, there are still many factors that are not sufficiently elucidated. There is a lack of research on autochthonous or exogenous microbial metabolism when biostimulation or bioaugmentation is carried out to produce biosurfactants at contaminated sites. In addition, studies on the application of techniques that measure the biosurfactants produced in situ are needed...
August 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28815412/study-of-the-removal-mechanism-of-aquatic-emergent-pollutants-by-new-bio-based-chars
#19
Maria Manuel Serrano Bernardo, Catarina Alexandra Catanas Madeira, Nuno Carlos Lapa Dos Santos Nunes, Diogo André Costa Messias Dias, Delfina Maria Barbosa Godinho, Maria Filomena de Jesus Pinto, Inês Alexandra Morgado do Nascimento Matos, Ana Paula Batista Carvalho, Isabel Maria de Figueiredo Ligeiro Fonseca
This work is dedicated to study the potential application of char byproducts obtained in the gasification of rice husk (RG char) and rice husk blended with corn cob (RCG char) as removal agents of two emergent aquatic contaminants: tetracycline and caffeine. The chars presented high ash contents (59.5-81.5%), being their mineral content mainly composed of silicon (as silica) and potassium. The samples presented a strong basic character, which was related to its higher mineral oxides content. RCG char presented better textural properties with a higher apparent surface area (144 m(2) g(-1)) and higher micropore content (V micro = 0...
August 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28815377/bacterial-community-structures-in-air-conditioners-installed-in-japanese-residential-buildings
#20
Kouta Hatayama, Yurika Oikawa, Hiroyuki Ito
The bacterial community structures in four Japanese split-type air conditioners were analyzed using a next-generation sequencer. A variety of bacteria were detected in the air filter of an air conditioner installed on the first floor. In the evaporator of this air conditioner, bacteria belonging to the genus Methylobacterium, or the family of Sphingomonadaceae, were predominantly detected. On the other hand, the majority of bacteria detected in the air filters and evaporators of air conditioners installed on the fifth and twelfth floors belonged to the family Enterobacteriaceae...
August 16, 2017: Antonie Van Leeuwenhoek
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