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https://www.readbyqxmd.com/read/27914290/the-interaction-of-surfactants-with-plastic-and-copper-plumbing-materials-during-decontamination
#1
Karen S Casteloes, Gamini P Mendis, Holly K Avins, John A Howarter, Andrew J Whelton
The study goal was to examine the effectiveness of surfactants to decontaminate plastic and copper potable water plumbing components. Several common potable water pipe and gasket plastics were examined as well as Alconox(®) detergent, Dawn(®) soap, and MAGIT-DG 100 surfactants. Results showed that the MAGIT-DG 100 solutions permeated all plastics within 3days, effectively compromising tensile strength (-82%), physical dimension (+43% volume, +45% weight), and oxidative resistance (-15%). A variety of MAGIT-DG 100 solution compounds permeated plastic samples, not just the declared major ingredient...
November 25, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27913865/nitrogen-dynamics-in-subtropical-fringe-and-basin-mangrove-forests-inferred-from-stable-isotopes
#2
Carla Roberta Gonçalves Reis, Gabriela Bielefeld Nardoto, André Luis Casarin Rochelle, Simone Aparecida Vieira, Rafael Silva Oliveira
Mangroves exhibit low species richness compared to other tropical forests, but great structural and functional diversity. Aiming to contribute to a better understanding of the functioning of mangrove forests, we investigated nitrogen (N) dynamics in two physiographic types of mangroves (fringe and basin forests) in southeastern Brazil. Because fringe forests are under great influence of tidal flushing we hypothesized that these forests would exhibit higher N cycling rates in sediment and higher N losses to the atmosphere compared to basin forests...
December 2, 2016: Oecologia
https://www.readbyqxmd.com/read/27912192/lab-based-investigation-of-enhanced-btex-attenuation-driven-by-groundwater-table-fluctuation
#3
Y S Yang, Panpan Li, Xi Zhang, Mingjie Li, Ying Lu, Bin Xu, Tong Yu
Groundwater fluctuation is often overlooked and lack of study in the field contaminant hydrogeology. Hydraulic force from fluctuating groundwater tables leads to dissolution and subsequent enhanced advective transport of petroleum (e.g. BTEX) in contaminated subsurface system. A laboratory investigation of effect of the groundwater table fluctuation (GTF) on BTEX transport, taking toluene as a typical compound, in a typical representative model of aquifers subjected to a daily water-table fluctuation was undertaken in this work...
November 29, 2016: Chemosphere
https://www.readbyqxmd.com/read/27911414/isolation-and-culture-of-primary-endothelial-cells-from-canine-arteries-and-veins
#4
Loes A Oosterhoff, Hedwig S Kruitwagen, Bart Spee, Frank G van Steenbeek
Cardiovascular disease is studied in both human and veterinary medicine. Endothelial cells have been used extensively as an in vitro model to study vasculogenesis, (tumor) angiogenesis, and atherosclerosis. The current standard for in vitro research on human endothelial cells (ECs) is the use of Human Umbilical Vein Endothelial Cells (HUVECs) and Human Umbilical Artery Endothelial Cells (HUAECs). For canine endothelial research, only one cell line (CnAOEC) is available, which is derived from canine aortic endothelium...
November 18, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27908454/fulvestrant-500-mg-versus-anastrozole-1-mg-for-hormone-receptor-positive-advanced-breast-cancer-falcon-an-international-randomised-double-blind-phase-3-trial
#5
John F R Robertson, Igor M Bondarenko, Ekaterina Trishkina, Mikhail Dvorkin, Lawrence Panasci, Alexey Manikhas, Yaroslav Shparyk, Servando Cardona-Huerta, Kwok-Leung Cheung, Manuel Jesus Philco-Salas, Manuel Ruiz-Borrego, Zhimin Shao, Shinzaburo Noguchi, Jacqui Rowbottom, Mary Stuart, Lynda M Grinsted, Mehdi Fazal, Matthew J Ellis
BACKGROUND: Aromatase inhibitors are a standard of care for hormone receptor-positive locally advanced or metastatic breast cancer. We investigated whether the selective oestrogen receptor degrader fulvestrant could improve progression-free survival compared with anastrozole in postmenopausal patients who had not received previous endocrine therapy. METHODS: In this phase 3, randomised, double-blind trial, we recruited eligible patients with histologically confirmed oestrogen receptor-positive or progesterone receptor-positive, or both, locally advanced or metastatic breast cancer from 113 academic hospitals and community centres in 20 countries...
November 28, 2016: Lancet
https://www.readbyqxmd.com/read/27904296/using-a-saline-flush-site-unseen-could-lead-to-a-wrong-route-error
#6
Matthew Grissinger
Using a saline flush "site unseen" could lead to a wrong-route error.
November 2016: P & T: a Peer-reviewed Journal for Formulary Management
https://www.readbyqxmd.com/read/27904031/variant-aldehyde-dehydrogenase-2-aldh2-2-in-east-asians-interactively-exacerbates-tobacco-smoking-risk-for-coronary-spasm%C3%A3-possible-role-of-reactive-aldehydes
#7
Yuji Mizuno, Seiji Hokimoto, Eisaku Harada, Kenji Kinoshita, Michihiro Yoshimura, Hirofumi Yasue
BACKGROUND: Coronary spastic angina (CSA) is common among East Asians and tobacco smoking (TS) is an established risk factor for CSA. Aldehyde dehydrogenase 2 (ALDH2) plays a key role in removing reactive toxic aldehydes and a deficient variant ALDH2 genotype (ALDH2*2) is prevalent among East Asians. We examined the interaction between TS andALDH2*2as a risk factor for CSA to better understand the disease pathogenesis.Methods and Results:The study subjects comprised 410 patients (258 men, 152 women; mean age, 66...
November 29, 2016: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/27903856/laparoscopic-left-hemicolectomy-for-colon-cancer-in-peritoneal-dialysis-patients-a-valid-and-safe-surgical-technique-to-ensure-peritoneal-dialysis-survival
#8
Sara Auricchio, Giulio Mari, Andrea Galassi, Beatrice Dozio, Marco Pozzi, Dario Maggioni, Renzo Scanziani
A laparoscopic approach represents an effective alternative to open surgery in patients undergoing peritoneal dialysis (PD). In these patients, conventional thinking provides for removal of the peritoneal catheter during left colon resections because of higher risk of patient contamination and peritonitis. The present paper describes 3 cases of laparoscopic left hemicolectomy for colon cancer performed in PD patients without complications and without peritoneal catheter removal, leading to subsequent early PD resumption...
November 2016: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/27901078/asian-citrus-psyllid-rnai-pathway-rnai-evidence
#9
Clauvis N T Taning, Eduardo C Andrade, Wayne B Hunter, Olivier Christiaens, Guy Smagghe
Diaphorina citri, known as the Asian citrus psyllid, is an important pest of citrus because it transmits a phloem-limited bacteria strongly implicated in huanglongbing (citrus greening disease). Emerging biotechnologies, such as RNA interference, could provide a new sustainable and environmentally friendly strategy for the management of this pest. In this study, genome and functional analysis were performed to verify whether the RNAi core genes are present in the Asian psyllid genome and if the RNAi machinery could be exploited to develop a management strategy for this pest...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27899248/unexplained-increases-in-serum-vancomycin-concentration-in-a-morbidly-obese-patient
#10
REVIEW
Sean P Kane, Scott D Hanes
INTRODUCTION: To report a case of increases in vancomycin concentrations without additional vancomycin doses being given. CASE STUDY: A 64 year-old morbidly obese female received three total doses of vancomycin for surgical prophylaxis and for ventilator-associated pneumonia. Subsequent vancomycin concentrations from the patient's central venous catheter (CVC) demonstrated increasing drug levels from 27.1 to 45.9mcg/mL despite no additional vancomycin being given and proper line flushing prior to sample collection...
November 26, 2016: Intensive & Critical Care Nursing: the Official Journal of the British Association of Critical Care Nurses
https://www.readbyqxmd.com/read/27898968/post-artificial-insemination-supplementation-with-calcium-salts-of-soybean-oil-influences-pregnancy-establishment-factors-in-beef-cows
#11
R S Cipriano, R F Cooke, A D Rodrigues, L G T Silva, D W Bohnert, R S Marques, J L M Vasconcelos, A V Pires, R L A Cerri
The objective of this experiment was to compare hormonal, uterine, and conceptus factors associated with pregnancy establishment in beef cows supplemented or not with Ca salts of soybean oil (CSSO) for 21 d beginning after timed AI. One hundred lactating multiparous Nelore cows were allocated to 20 groups of 5 cows/group and timed inseminated on d 0 of the experiment. After AI, groups were randomly assigned to receive (as-fed basis) 100 g of protein-mineral mix + 100 g of ground corn per cow per day, in addition to 1) 100 g/cow daily of CSSO ( = 10) or 2) 100 g/cow daily of kaolin (CON; rumen-inert indigestible substance; = 10)...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27898550/severe-intraoperative-shock-related-to-mesenteric-traction-syndrome
#12
Alfredo Haack Couto, Hugo Siqueira, Pablo Pulcheira Brasileiro, Ismar Lima Cavalcanti, Rogério Luiz da Rocha Videira
Mesenteric traction syndrome is defined as arterial hypotension, facial flushing, and tachycardia related to mesenteric traction. We describe a case of mesenteric traction syndrome refractory to catecholamine and vasopressin infusions. The patient, who had Crohn disease, developed severe distributive shock after mesenteric traction while undergoing resection of an intestinal inflammatory mass, accompanied by facial flushing and unaltered readings for pulse oximetry, capnography, and bispectral index monitoring...
November 28, 2016: A & A Case Reports
https://www.readbyqxmd.com/read/27895950/endobronchial-carcinoid-and-concurrent-carcinoid-syndrome-in-an-adolescent-female
#13
Jonathan D Cogen, Jonathan Swanson, Thida Ong
Endobronchial carcinoid tumors are the most common intrabronchial tumors in children and adolescents. Common signs and symptoms include persistent cough and wheezing not responsive to bronchodilators, hemoptysis, and recurrent fever. Diagnosis is frequently made by imaging and direct visualization with flexible bronchoscopy; surgery remains the gold standard treatment, and lung-sparing resections should be performed whenever possible. Though carcinoid syndrome-characterized by flushing, palpitations, wheezing, shortness of breath, and diarrhea-has been found in association with adult bronchial carcinoid tumors, to our knowledge only one previous study has reported the presence of carcinoid syndrome in a pediatric patient with an endobronchial carcinoid...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/27891041/spinal-intradural-hydatid-cyst-causing-arachnoiditis-a-rare-etiology-of-cauda-equina-syndrome
#14
Suyash Singh, Jayesh Sardhara, Amit Kumar Singh, Arun Kumar Srivastava, Kamlesh Singh Bhaisora, Kuntal Kanti Das, Anant Mehrotra, Rabi N Sahu, Awadhesh Kumar Jaiswal, Sanjay Behari
This study aims to focus on a rare presentation of spinal hydatid cyst as cauda equine syndrome and misdiagnosed as intradural extramedullary (IDEM) benign lesion on magnetic resonance imaging. In this article, we report a case of spinal hydatid cyst masquerading as IDEM tumor, and intraoperatively, we accidently find clumped granuloma with severe arachnoiditis and hydatid cyst in lumber region, which was present as bilateral S1 radiculopathy with cauda equina syndrome. An 11-year-old boy who presented with symptoms and signs of cauda equina syndrome and planned for surgical excision...
October 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27890476/spatial-and-temporal-dynamics-of-macrophyte-cover-in-a-large-regulated-river
#15
A Tena, D Vericat, L E Gonzalo, R J Batalla
The River Ebro basin is extensively dammed. Dams alter the geomorphological functioning of the river by altering its flow regime (e.g. reducing mean and maximum discharges), increasing bed stability (armouring) and decreasing turbidity (water clarity). These effects, together with an increase in nutrient concentrations and water temperature, have generated optimal conditions for the proliferation of aquatic macrophytes. In this paper, we analyse the temporal and spatial changes of macrophyte cover in the lowermost Ebro through a series of field campaigns carried out between 2009 and 2010...
November 24, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27890409/geochemistry-of-arsenic-in-low-sulfide-high-carbonate-coal-waste-rock-elk-valley-british-columbia-canada
#16
Ashis Biswas, M Jim Hendry, Joseph Essilfie-Dughan
This study investigated the geochemistry of arsenic (As) in low sulfide-high carbonate coal waste rock of the Elk Valley, British Columbia, Canada. Its abundance and mineralogical associations in waste rock of different placement periods were determined in addition to its mobilization into porewater and rock-drain effluent. The mean (5.34mg/kg; 95% confidence interval: 4.95-5.73mg/kg) As concentration in the waste rock was typical of sedimentary rock. Electron microprobe and As K-edge X-ray absorption near-edge spectroscopic analyses showed the As is predominantly associated with primary pyrites in both source and freshly blasted waste rock...
November 24, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27888751/remote-ischemic-preconditioning-attenuates-egr-1-expression-following-myocardial-ischemia-reperfusion-injury-through-activation-of-the-jak-stat-pathway
#17
H Mudaliar, B Rayner, M Billah, N Kapoor, W Lay, A Dona, R Bhindi
BACKGROUND/OBJECTIVES: Remote ischemic preconditioning (RIPC) protects the myocardium from ischemia/reperfusion (I/R) injury however the molecular pathways involved in cardioprotection are yet to be fully delineated. Transcription factor Early growth response-1 (Egr-1) is a key upstream activator in a variety of cardiovascular diseases. In this study, we elucidated the role of RIPC in modulating the regulation of Egr-1. METHODS: This study subjected rats to transient blockade of the left anterior descending (LAD) coronary artery with or without prior RIPC of the hind-limb muscle and thereafter excised the heart 24h following surgical intervention...
November 10, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27887581/design-of-a-randomized-controlled-trial-of-internet-based-cognitive-behavioral-therapy-for-treatment-induced-menopausal-symptoms-in-breast-cancer-survivors
#18
Vera Atema, Marieke van Leeuwen, Hester S A Oldenburg, Valesca Retèl, Marc van Beurden, Myra S Hunter, Neil K Aaronson
BACKGROUND: Menopausal symptoms are common and may be particularly severe in younger women who undergo treatment-induced menopause. Medications to reduce menopausal symptoms are either contra-indicated or have bothersome side effects. Previous studies have demonstrated that face-to-face cognitive behavioral therapy (CBT) is effective in alleviating menopausal symptoms in women with breast cancer. However, compliance with face-to-face CBT programs can be problematic. A promising approach is to use the Internet to make this form of CBT more accessible and feasible for patients...
November 25, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27884683/yttrium-90-radioembolization-with-resin-microspheres-without-routine-embolization-of-the-gastroduodenal-artery
#19
Thomas J Ward, John D Louie, Daniel Y Sze
PURPOSE: To evaluate safety of resin microsphere radioembolization (RE) without prophylactic embolization of the gastroduodenal artery (GDA). MATERIALS AND METHODS: Between July 2013 and April 2015, all patients undergoing RE with resin microspheres for liver-dominant metastatic disease were treated without routine embolization of the GDA. Selective embolization of distal hepaticoenteric vessels was performed if identified by digital subtraction angiography, cone-beam computed tomography, or technetium-99m macroaggregated albumin scintigraphy...
November 21, 2016: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/27882078/debridement-in-chronic-osteomyelitis-with-benign-osteopetrosis-a-case-report
#20
Yu-Ping Liu, Xiang-Hua Lin, Man-Yun Yan, Bao-Quan Lin, Ming-Ying Zhuo
Osteopetrosis is a rare bone disease caused by metabolic imbalances as a result of genetic mutations. For instance, autosomal dominant osteopetrosis is caused by a missense mutation of the C1CN7 gene. This was first reported in 1904 and is thought to be caused by osteoclastic dysfunction and an impaired bone resorption ability. An accumulation of cortical bone mass during the remodeling of the medullary bone may increase the bone density and give rise to a hard marble consistency. Osteopetrosis can be divided into benign and malignant forms; however, no curative treatment exists for benign osteopetrosis...
November 2016: Experimental and Therapeutic Medicine
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