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https://www.readbyqxmd.com/read/28110454/tackling-the-salinity-pollution-nexus-in-coastal-aquifers-from-arid-regions-using-nitrate-and-boron-isotopes
#1
V Re, E Sacchi
Salinization and nitrate pollution are generally ascertained as the main issues affecting coastal aquifers worldwide. In arid zones, where agricultural activities also result in soil salinization, both phenomena tend to co-exist and synergically contribute to alter groundwater quality, with severe negative impacts on human populations and natural ecosystems' wellbeing. It becomes therefore necessary to understand if and to what extent integrated hydrogeochemical tools can help in distinguishing among possible different salinization and nitrate contamination origins, in order to provide adequate science-based support to local development and environmental protection...
January 22, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28110124/monoanionic-99m-tc-tricarbonyl-aminopolycarboxylate-complexes-with-uncharged-pendant-groups-radiosynthesis-and-evaluation-as-potential-renal-tubular-tracers
#2
Malgorzata Lipowska, Jeffrey Klenc, Nashwa Jarkas, Luigi G Marzilli, Andrew T Taylor
INTRODUCTION: (99m)Tc(CO)3-nitrilotriacetic acid, (99m)Tc(CO)3(NTA), is a new renal tubular agent with pharmacokinetic properties comparable to those of (131)I-OIH but the clearance of (99m)Tc(CO)3(NTA) and (131)I-OIH is still less than the clearance of PAH, the gold standard for the measurement of effective renal plasma flow. At physiological pH, dianionic (99m)Tc(CO)3(NTA) has a mononegative inner metal-coordination sphere and a mononegative uncoordinated carboxyl group. To evaluate alternate synthetic approaches, we assessed the importance of an uncoordinated carboxyl group, long considered essential for tubular transport, by evaluating the pharmacokinetics of three analogs with the (99m)Tc(CO)3(NTA) metal-coordination sphere but with uncharged pendant groups...
December 27, 2016: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/28108148/re-detection-of-micrometastases-by-flow-cytometry-in-sentinel-lymph-nodes-from-patients-with-renal-tumours
#3
Teele Kuusk, Axel Bex
No abstract text is available yet for this article.
January 17, 2017: European Urology
https://www.readbyqxmd.com/read/28100649/incidence-of-delivery-wire-recapture-failure-with-the-pipeline-flex-device
#4
Michael A Mooney, Karam Moon, Bradley A Gross, Andrew F Ducruet, Felipe C Albuquerque
BACKGROUND: The Pipeline Flex embolization device has several advantages over the first-generation Pipeline embolization device (Covidien, Dublin, Republic of Ireland). Despite these advantages, we have observed frequent difficulty in recapturing the device's delivery wire. OBJECTIVE: To prospectively document the incidence of failure to recapture the delivery wire. METHODS: We tracked our experience in patients undergoing endovascular treatment with a flow-diverting stent for cerebral aneurysms between 1 May and 30 September 2016...
January 18, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28100636/centriole-splitting-caused-by-loss-of-the-centrosomal-linker-protein-c-nap1-reduces-centriolar-satellite-density-and-impedes-centrosome-amplification
#5
Anne-Marie Flanagan, Elena Stavenschi, Shivakumar Basavaraju, David Gaboriau, David A Hoey, Ciaran G Morrison
Duplication of the centrosomes is a tightly regulated process. Abnormal centrosome numbers can impair cell division and cause changes in how cells migrate. Duplicated centrosomes are held together by a proteinaceous linker made up of rootletin filaments anchored to the centrioles by C-NAP1. This linker is removed in a NEK2A kinase-dependent manner as mitosis begins. To explore C-NAP1 activities in regulating centrosome activities, we used genome editing to ablate it. C-NAP1 null cells were viable and had an increased frequency of premature centriole separation, accompanied by reduced density of the centriolar satellites, with re-expression of C-NAP1 rescuing both these phenotypes...
January 18, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28100342/-the-effect-on-myocardial-perfusion-and-clinical-outcome-of-intracoronary-nicorandil-injection-prior-to-percutaneous-coronary-intervention-in-st-segment-elevation-myocardial-infarction
#6
Z Q Wang, M X Chen, D L Liu, W X Zheng, X Z Cao, H Chen, M F Huang, Z R Luo
Objective: To investigate the effect of intracoronary administration of nicorandil prior to primary percutaneous coronary intervention (PPCI) on myocardial perfusion and short-term clinical outcomes in patients with ST-segment elevation myocardial infarction (STEMI). Methods: A total of 158 patients with STEMI undergoing PPCI from January 2014 to December 2015 in Fuzhou General Hospital were enrolled consecutively in this prospective controlled randomized trial. Patients were assigned into three groups with random number table: the nicorandil group (patients received intracoronary administration of 6 mg nicorandil after guide wire or balloon successfully crossed the target lesion, n=53), the nitroglycerin group (patients received intracoronary administration of 300 μg nitroglycerin after after guide wire or balloon successfully crossed the target lesion, n=52) and the control group(patients received routine treatment, n=53)...
January 25, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28094900/high-throughput-precision-measurement-of-subcellular-localization-in-single-cells
#7
Tyler J Burns, Andreas P Frei, Pier F Gherardini, Felice A Bava, Jake E Batchelder, Yuki Yoshiyasu, Julie M Yu, Amanda R Groziak, Samuel C Kimmey, Veronica D Gonzalez, Wendy J Fantl, Garry P Nolan
To quantify visual and spatial information in single cells with a throughput of thousands of cells per second, we developed Subcellular Localization Assay (SLA). This adaptation of Proximity Ligation Assay expands the capabilities of flow cytometry to include data relating to localization of proteins to and within organelles. We used SLA to detect the nuclear import of transcription factors across cell subsets in complex samples. We further measured intranuclear re-localization of target proteins across the cell cycle and upon DNA damage induction...
January 17, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28094072/survey-on-graduate-education-in-the-confederaci%C3%A3-n-americana-de-urolog%C3%A3-a-opinions-and-reality
#8
J C Angulo, H Dávila, R Vela
OBJECTIVE: Quality graduate medical training is a concern of Confederación Americana de Urología (CAU), the third largest urological society worldwide. It is important to analyse the diversity in the state training programmes and the feasibility and implications of conducting a common CAU programme. MATERIAL AND METHODS: A 20-item questionnaire was distributed to the directors of national societies who are members of the CAU concerning the graduate urological training in their institutions...
January 13, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/28089203/carbon-footprint-and-energy-use-of-food-waste-management-options-for-fresh-fruit-and-vegetables-from-supermarkets
#9
Mattias Eriksson, Johanna Spångberg
Food waste is a problem with economic, environmental and social implications, making it both important and complex. Previous studies have addressed food waste management options at the less prioritised end of the waste hierarchy, but information on more prioritised levels is also needed when selecting the best available waste management options. Investigating the global warming potential and primary energy use of different waste management options offers a limited perspective, but is still important for validating impacts from the waste hierarchy in a local context...
January 11, 2017: Waste Management
https://www.readbyqxmd.com/read/28088305/inertial-particle-dynamics-in-large-artery-flows-implications-for-modeling-arterial-embolisms
#10
Debanjan Mukherjee, Shawn C Shadden
The complexity of inertial particle dynamics through swirling chaotic flow structures characteristic of pulsatile large-artery hemodynamics renders significant challenges in predictive understanding of transport of such particles. This is specifically crucial for arterial embolisms, where knowledge of embolus transport to major vascular beds helps in disease diagnosis and surgical planning. Using a computational framework built upon image-based CFD and discrete particle dynamics modeling, a multi-parameter sampling-based study was conducted on embolic particle dynamics and transport...
December 29, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28081526/phosphomolybdic-acid-and-ferric-iron-as-efficient-electron-mediators-for-coupling-biomass-pretreatment-to-produce-bioethanol-and-electricity-generation-from-wheat-straw
#11
Yi Ding, Bo Du, Xuebing Zhao, J Y Zhu, Dehua Liu
Phosphomolybdic acid (PMo12) was used as an electron mediator and proton carrier to mediate biomass pretreatment for ethanol production and electricity generation from wheat straw. In the pretreatment, lignin was oxidized anaerobically by PMo12 with solubilization of a fraction of hemicelluloses, and the PMo12 was simultaneously reduced. In an external liquid flow cell, the reduced PMo12 was re-oxidized with generation of electricity. The effects of several factors on pretreatment were investigated for optimizing the conditions...
January 3, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28079756/optical-coherence-tomography-angiography-changes-in-early-type-3-neovascularization-after-anti-vascular-endothelial-growth-factor-treatment
#12
Alexandra Miere, Giuseppe Querques, Oudy Semoun, Francesca Amoroso, Olivia Zambrowski, Thibaut Chapron, Vittorio Capuano, Eric H Souied
PURPOSE: To investigate the morphologic changes on optical coherence tomography angiography (OCTA) of treatment-naive Type 3 neovascularization secondary to exudative age-related macular degeneration after 1 year of anti-vascular endothelial growth factor therapy. METHODS: Consecutive patients diagnosed with treatment-naive early-stage Type 3 neovascularization were enrolled in this retrospective study. All patients underwent color fundus photographs/MultiColor (Heidelberg Engineering) imaging, fluorescein angiography, indocyanine green angiography, structural spectral domain OCT, and OCTA Optovue RTVue XR Avanti (Optovue) at baseline, and repeated OCTA and structural spectral domain OCT at Month 12...
January 10, 2017: Retina
https://www.readbyqxmd.com/read/28069230/acoustic-microbubble-dynamics-with-viscous-effects
#13
Kawa Manmi, Qianxi Wang
Microbubble dynamics subject to ultrasound are associated with important applications in biomedical ultrasonics, sonochemistry and cavitation cleaning. The viscous effects in this phenomenon is essential since the Reynolds number Re associated is about O(10). The flow field is characterized as being an irrotational flow in the bulk volume but with a thin vorticity layer at the bubble surface. This paper investigates the phenomenon using the boundary integral method based on the viscous potential flow theory...
May 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28069106/portal-vein-thrombosis-after-reconstruction-in-270-consecutive-patients-with-portal-vein-resections-in-hepatopancreatobiliary-hpb-surgery
#14
Masaru Miyazaki, Hiroaki Shimizu, Masayuki Ohtuka, Atsushi Kato, Hiroyuki Yoshitomi, Katsunori Furukawa, Tsukasa Takayashiki, Satoshi Kuboki, Shigetsugu Takano, Daisuke Suzuki, Taku Higashihara
BACKGROUNDS: This study was aimed to evaluate the occurrence of portal vein thrombosis after portal vein reconstruction. METHODS: The portal veins were repaired with venorrhaphy, end-to-end, patch graft, and segmental graft in consecutive 270 patients undergoing hepato-pancreto-biliary (HPB) surgery. RESULTS: Portal vein thrombosis was encountered in 20 of 163 of end-to-end, 2 of 56 of venorrhaphy, and 2 of 5 of patch graft groups, as compared with 0 of 46 of segmental graft group (p < 0...
December 24, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/28067803/regulation-of-viral-replication-apoptosis-and-pro-inflammatory-responses-by-17-aag-during-chikungunya-virus-infection-in-macrophages
#15
Tapas K Nayak, Prabhudutta Mamidi, Abhishek Kumar, Laishram Pradeep K Singh, Subhransu S Sahoo, Soma Chattopadhyay, Subhasis Chattopadhyay
Chikungunya virus (CHIKV) infection has re-emerged as a major public health concern due to its recent worldwide epidemics and lack of control measures. Although CHIKV is known to infect macrophages, regulation of CHIKV replication, apoptosis and immune responses towards macrophages are not well understood. Accordingly, the Raw264.7 cells, a mouse macrophage cell line, were infected with CHIKV and viral replication as well as new viral progeny release was assessed by flow cytometry and plaque assay, respectively...
January 6, 2017: Viruses
https://www.readbyqxmd.com/read/28065549/an-experimental-investigation-of-underwater-spread-of-oil-spill-in-a-shear-flow
#16
Hongjun Zhu, Jiahui You, Honglei Zhao
The time taken for spilt oil to appear firstly at the sea surface and its location are two key issues for emergency response. The underwater spread of oil spill in a shear flow was studied experimentally in a re-circulating water channel. The high speed imaging technology was employed to record the whole transport process of oil spilt from a leak of a submarine pipe to the surface. Based on the experimental results, three underwater transport types are identified, which are single droplet pattern (model A), linear chain pattern (model B) and oil plume pattern (model C), respectively...
January 5, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28062204/impact-of-formulation-properties-and-process-parameters-on-the-dispensing-and-depositioning-of-drug-nanosuspensions-using-micro-valve-technology
#17
Bastian Bonhoeffer, Arno Kwade, Michael Juhnke
Flexible manufacturing processes with continuously adjustable dose strengths are considered particularly innovative and interesting for applications in personalized medicine, continuous manufacturing or early drug development. A piezo-actuated micro-valve has been investigated for the dispensing and depositioning of drug nanosuspensions onto substrates to facilitate the manufacturing of solid oral dosage forms. The investigated micro-valve has been characterized regarding dispensing behavior, mass flow, accuracy and robustness...
January 3, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28061770/viscumtt-induces-apoptosis-and-alters-iap-expression-in-osteosarcoma-in-vitro-and-has-synergistic-action-when-combined-with-different-chemotherapeutic-drugs
#18
Susann Kleinsimon, Gwenda Kauczor, Sebastian Jaeger, Angelika Eggert, Georg Seifert, Catharina Delebinski
BACKGROUND: Osteosarcoma is the most common bone tumor and is associated with a poor prognosis. Conventional therapies, surgery and chemotherapy, are still the standard but soon reach their limits. New therapeutic approaches are therefore needed. Conventional aqueous mistletoe extracts from the European mistletoe (Viscum album L.) are used in complementary cancer treatment. These commercial extracts are water-based and do not include water-insoluble compounds such as triterpenic acids...
January 7, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28060314/analysis-of-simian-immunodeficiency-virus-specific-cd8-t-cells-in-rhesus-macaques-by-peptide-mhc-i-tetramer-staining
#19
Lucas Gonzalez-Nieto, Aline Domingues, Michael Ricciardi, Martin J Gutman, Helen S Maxwell, Nuria Pedreño-Lopez, Varian Bailey, Diogo M Magnani, Mauricio A Martins
Peptide-major histocompatibility complex class I (pMHC-I) tetramers have been an invaluable tool to study CD8(+) T-cell responses. Because these reagents directly bind to T-cell receptors on the surface of CD8(+) T-lymphocytes, fluorochrome-labeled pMHC-I tetramers enable the accurate detection of antigen (Ag)-specific CD8(+) T-cells without the need for in vitro re-stimulation. Moreover, when combined with multi-color flow cytometry, pMHC-I tetramer staining can reveal key aspects of Ag-specific CD8(+) T-cells, including differentiation stage, memory phenotype, and activation status...
December 23, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28060277/inducing-ischemia-reperfusion-injury-in-the-mouse-ear-skin-for-intravital-multiphoton-imaging-of-immune-responses
#20
Chi Ching Goh, Jackson LiangYao Li, David Becker, Wolfgang Weninger, Veronique Angeli, Lai Guan Ng
Ischemia-reperfusion injury (IRI) occurs when there is transient hypoxia due to the obstruction of blood flow (ischemia) followed by a subsequent re-oxygenation of the tissues (reperfusion). In the skin, ischemia-reperfusion (IR) is the main contributing factor to the pathophysiology of pressure ulcers. While the cascade of events leading up to the inflammatory response has been well studied, the spatial and temporal responses of the different subsets of immune cells to an IR injury are not well understood...
December 22, 2016: Journal of Visualized Experiments: JoVE
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