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https://www.readbyqxmd.com/read/28550806/lettuce-facing-microcystins-rich-irrigation-water-at-different-developmental-stages-effects-on-plant-performance-and-microcystins-bioaccumulation
#1
Efi Levizou, George Statiris, Theodoti Papadimitriou, Chrysi S Laspidou, Konstantinos Ar Kormas
This study investigated the microcystins (MCs)-rich irrigation water effect on lettuce of different developmental stages, i.e. during a two months period, covering the whole period from seed germination to harvest at marketable size of the plant. We followed four lettuce plant groups receiving MCs-rich water (1.81μgl(-1) of dissolved MCs), originating from the Karla Reservoir, central Greece: 1) from seeds, 2) the cotyledon, 3) two true leaves and 4) four true leaves stages, all of which were compared to control plants that received tap water...
May 24, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28550805/enantioselective-accumulation-metabolism-and-phytoremediation-of-lactofen-by-aquatic-macrophyte-lemna-minor
#2
Fang Wang, Xiaotong Yi, Han Qu, Li Chen, Donghui Liu, Peng Wang, Zhiqiang Zhou
Pesticides are frequently detected in water bodies due to the agricultural application, which may pose impacts on aquatic organisms. The enantioselective bioaccumulation and metabolism of the herbicide lactofen in aquatic floating macrophyte Lemna minor (L. minor) were studied and the potential L. minor phytoremediation was investigated. Ultra-high performance liquid chromatography - tandem mass spectrometry (UHPLC-MS-MS) analysis for lactofen and its two known metabolites in L. minor was performed. The initial concentrations of racemic lactofen, R-lactofen and S-lactofen were all 30μgL(-1) in the growth solution...
May 24, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28550797/potential-tracers-for-tracking-septic-tank-effluent-discharges-in-watercourses
#3
Samia Richards, Paul J A Withers, Eric Paterson, Colin W McRoberts, Marc Stutter
Septic tank effluent (STE) contributes to catchment nutrient and pollutant loads. To assess the role of STE discharges in impairment of surface water, it is essential to identify the sources of pollution by tracing contaminants in watercourses. We examined tracers that were present in STE to establish their potential for identifying STE contamination in two stream systems (low and high dilution levels) against the background of upstream sources. The studied tracers were microbial, organic matter fluorescence, caffeine, artificial sweeteners and effluent chemical concentrations...
May 24, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28550791/environmental-indicators-of-the-combustion-of-prospective-coal-water-slurry-containing-petrochemicals
#4
Margarita A Dmitrienko, Galina S Nyashina, Pavel A Strizhak
Negative environmental impact of coal combustion has been known to humankind for a fairly long time. Sulfur and nitrogen oxides are considered the most dangerous anthropogenic emissions. A possible solution to this problem is replacing coal dust combustion with that of coal water slurry containing petrochemicals (CWSP). Coal processing wastes and used combustible liquids (oils, sludge, resins) are promising in terms of their economic and energy yield characteristics. However, no research has yet been conducted on the environmental indicators of fuels based on CWSP...
May 18, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28550790/trophic-fate-of-inorganic-and-methyl-mercury-in-a-macrophyte-chironomid-food-chain
#5
Rebecca Beauvais-Flück, Frédéric Gimbert, Ophélie Méhault, Claudia Cosio
Dietary transfer of mercury (Hg) is central for its effects on higher trophic animals, nonetheless, its driving parameters and characteristics are not well understood. Here we measured Hg species transfer (uptake) from the macrophyte Elodea nuttallii -mimicking tissues incorporation in sediments after decay- to Chironomus riparius. Methyl-Hg (MMHg) was more transferable than inorganic Hg (IHg) from plant's intracellular and cell wall compartments. After 10-d-long exposure, MMHg was predominantly found in MMHg form in the cytosolic compartment (S) of chironomids, while IHg showed similar concentrations in S and insoluble debris (P) compartments...
May 17, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28550789/eversion-stripping-of-the-esophagus-with-intraesophageal-insufflation-a-case-report
#6
Masahiro Kimura, Takaya Nagasaki, Yoshiyuki Kuwabara, Hironori Tanaka, Motoki Hato, Satoshi Taniwaki, Akira Mitsui, Yasuyuki Shibata, Kotaro Mizuno, Yoichiro Mori, Nobuo Ochi, Shuhei Ueno, Yuki Eguchi
INTRODUCTION: Patients with esophageal cancer frequently cannot tolerate thoracotomy due to their overall debilitated condition. Moreover, some patients have severe adhesions in the thoracic cavity. Eversion stripping of the esophagus is an option for resection in these patients. PRESENTATION OF CASE: A 64-year-old man was admitted to our institution with the chief complaint of epigastric pain. Endoscopic examination showed a protruding lesion 22cm from the incisors, with a superficial and circumferential mucosal irregularity on the distal side of the lesion...
May 15, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28550785/gender-gaps-and-glass-ceilings-a-survey-of-gender-specific-publication-trends-in-psychiatry-between-1994-and-2014
#7
S Süßenbacher, M Amering, A Gmeiner, B Schrank
BACKGROUND: Within academic psychiatry, women are underrepresented in the higher academic ranks. However, basic determinants of women's lack of academic advancement such as publication activity are poorly understood. The present study examines women's publication activity in high-impact psychiatry journals over two decades and reports developments in the numbers of male and female authorship over time and across cultural areas. METHODS: We conducted a retrospective bibliometric review of all articles published in 2004 and 2014 in three high-ranking general psychiatry journals...
April 6, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28550784/high-resolution-analyses-reveal-structural-diversity-patterns-of-microbial-communities-in-chromite-ore-processing-residue-copr-contaminated-soils
#8
Xiaobo Min, Yangyang Wang, Liyuan Chai, Zhihui Yang, Qi Liao
To explore how heavy metal contamination in Chromite Ore Processing Residue (COPR) disposal sites determine the dissimilarities of indigenous microbial communities, 16S rRNA gene MiSeq sequencing and advanced statistical methods were applied. 13 soil samples were collected from three COPR disposal sites in Mouding of southwestern, Shangnan of northwestern and Yima of central China. The results of analyses of variance (ANOVA), similarities (ANOSIM), and non-metric multidimensional scaling (NMDS) showed that the structural diversity of the microbial communities in the samples with high total chromium (Cr) content (more than 300 mg kg(-1); High group) were significantly lesser than in the Low group (less than 90 mg kg(-1)) regardless of their geographical distribution...
May 21, 2017: Chemosphere
https://www.readbyqxmd.com/read/28550774/thermo-mechanical-fractionation-of-yellow-poplar-sawdust-with-a-low-reaction-severity-using-continuous-twin-screw-driven-reactor-for-high-hemicellulosic-sugar-recovery
#9
Won Il Choi, Hyun Jin Ryu, Seong Ju Kim, Kyeong Keun Oh
Yellow poplar sawdust (YPS), a wood waste that can be easily collected from a local furniture factory, was fractionated using continuous twin screw-driven reactor for high hemicellulosic sugar recovery. The highest total sugar yields were attained under the following conditions: a barrel temperature of 127°C, sulfuric acid concentration of 0.8wt%, liquid feeding rate of 25mL/min, solid feeding rate of 2.0g/min, screw rotation speed of 25rpm, and residence time of 14.5min. The glucan and hemicellulose contents of the CTSR-fractionated YPS were 47...
May 18, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28550768/photochemical-studies-of-cis-ru-bpy-2-4-bzpy-co-pf6-2-and-cis-ru-bpy-2-4-bzpy-cl-pf6-blue-light-induced-nucleobase-binding
#10
Aurideia P de Sousa, Edinilton M Carvalho, Javier Ellena, Eduardo H S Sousa, Jackson R de Sousa, Luiz G F Lopes, Peter C Ford, Alda K M Holanda
The ruthenium(II) compounds cis-[Ru(bpy)2(4-bzpy)(CO)](PF6)2 (I) and cis-[Ru(bpy)2(4-bzpy)(Cl)](PF6) (II) (4-bzpy=4-benzoylpyridine, bpy=2,2'-bipyridine) were synthesized and characterized by spectroscopic and electrochemical techniques. The crystal structure of II was determined by X-ray diffraction. The photochemical behavior of I in aqueous solution shows that irradiation with ultraviolet light (365nm) releases both CO and 4-bzpy leading to the formation of the cis-[Ru(bpy)2(H2O)2](2+) ion as identified by NMR and electronic spectroscopy...
May 15, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28550762/forensic-age-estimation-by-morphometric-analysis-of-the-manubrium-from-3d-mr-images
#11
Naira P Martínez Vera, Johannes Höller, Thomas Widek, Bernhard Neumayer, Thomas Ehammer, Martin Urschler
Forensic age estimation research based on skeletal structures focuses on patterns of growth and development using different bones. In this work, our aim was to study growth-related evolution of the manubrium in living adolescents and young adults using magnetic resonance imaging (MRI), which is an image acquisition modality that does not involve ionizing radiation. In a first step, individual manubrium and subject features were correlated with age, which confirmed a statistically significant change of manubrium volume (Mvol:p<0...
May 12, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28550757/serum-levels-of-peptide-cathelicidin-ll-37-in-elderly-patients-with-depression
#12
Elżbieta Kozłowska, Adam Wysokiński, Ewa Brzezińska-Błaszczyk
Cathelicidin LL-37 is a small cationic that plays an important role in antimicrobial defense, as it kills a broad spectrum of infectious agents by disrupting their membranes, including gram-positive and gram-negative bacteria, some viruses and fungi; and it neutralizes activity of bacterial endotoxins. Moreover, cathelicidin LL-37 exerts proinflammatory effect, while numerous reports indicate the role of inflammation in the development of depression. The purpose of this study was to evaluate the circulating levels of cathelicidin LL-37 in elderly depressed patients...
May 22, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28550747/investigation-of-solvation-of-iron-nanoclusters-in-ionic-liquid-1-butyl-1-1-1-trimethylammonium-methane-sulfonate-using-molecular-dynamics-simulations-effect-of-cluster-size-at-different-temperatures
#13
Mohsen Abbaspour, Hamed Akbarzadeh, Parnian Yousefi, Mohammad Razmkhah
The systems composed of metal nanoclusters in ionic liquids are relevant for applications in lubrication, electrochemical devices, catalysis, and chemical processes. The mechanism of solvation and interactions of these systems are not understood at present. In this work, we have simulated iron nanoclusters with different sizes in ionic liquid 1-butyl-1,1,1-trimethylammonium methane sulfonate [N1114][C1SO3] at two temperatures (300 and 500K) and at atmospheric pressure. We have investigated the effects of cluster size and the temperature on some of the thermodynamics, structural and dynamical properties of the systems...
May 21, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28550731/xanthotoxin-suppresses-lps-induced-expression-of-inos-cox-2-tnf-%C3%AE-and-il-6-via-ap-1-nf-%C3%AE%C2%BAb-and-jak-stat-inactivation-in-raw-264-7-macrophages
#14
Seung-Bin Lee, Woo Seok Lee, Ji-Sun Shin, Dae Sik Jang, Kyung Tae Lee
Although xanthotoxin has been reported to possess skin-protective and anti-oxidative properties, its anti-inflammatory capacity has not been studied to date. Therefore, we investigated this role as well as the molecular mechanisms of xanthotoxin in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages. Xanthotoxin inhibited production of nitric oxide (NO), prostaglandin E2 (PGE2), tumor necrosis factor (TNF-α), and interleukin-6 (IL-6) by the LPS-induced macrophages in a concentration-dependent manner. It also suppressed the LPS-induced inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression at the protein levels and iNOS, COX-2, TNF-α, and IL-6 at the mRNA levels...
May 24, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28550726/indices-of-stress-and-immune-function-in-arctic-barnacle-goslings-branta-leucopsis-were-impacted-by-social-isolation-but-not-a-contaminated-grazing-environment
#15
Margje E de Jong, Isabella B R Scheiber, Nico W van den Brink, Anna Braun, Kevin D Matson, Jan Komdeur, Maarten J J E Loonen
In many areas around the Arctic remains and spoil heaps of old mines can be found, which have been abandoned after their heydays. Runoff from tailings of these abandoned mines can directly contaminate the local environment with elevated concentrations of trace metals. Few studies have investigated the possible negative effects of contaminants on Arctic terrestrial animals that use these areas. Trace metals can accumulate in animals and this accumulation has been linked to negative effects on fitness. Both, the hypothalamus-pituitary-adrenal (HPA) axis and/or the immune system have been named as possible underlying causes for these observations...
May 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28550718/attachment-to-place-in-advanced-age-a-study-of-the-lilacs-nz-cohort
#16
Janine L Wiles, Anna Rolleston, Avinesh Pillai, Joanna Broad, Ruth Teh, Merryn Gott, Ngaire Kerse
An extensive body of research theorises that attachment to place is positively associated with health, particularly for older people. Building on this, we measure how indicators of attachment to place are associated with health for in people of advanced age in New Zealand. We use data from a cohort study (LiLACS NZ), which includes an indigenous Māori cohort aged 80-90 years and a non-Māori cohort aged 85 years from a mixed urban/rural region in New Zealand. Each cohort undertook a comprehensive interview and health assessment (n = 267 Māori and n = 404 non-Māori)...
May 4, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28550712/combined-immune-checkpoint-blockade-anti-pd-1-anti-ctla-4-evaluation-and-management-of-adverse-drug-reactions
#17
REVIEW
Jessica C Hassel, Lucie Heinzerling, Jens Aberle, Oliver Bähr, Thomas K Eigentler, Marc-Oliver Grimm, Victor Grünwald, Jan Leipe, Niels Reinmuth, Julia K Tietze, Jörg Trojan, Lisa Zimmer, Ralf Gutzmer
Combined immune checkpoint blockade (ICB) provides unprecedented efficacy gains in numerous cancer indications, with PD-1 inhibitor nivolumab plus CTLA-4 inhibitor ipilimumab in advanced melanoma as first-ever approved therapies for combined ICB. However, gains in efficacy must be balanced against a higher frequency and severity of adverse drug reactions (ADR). Because delays in diagnosis and management might result in symptom worsening and further complications, clinicians shall be well trained to identify ADR promptly and monitor patients adequately...
May 18, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28550702/listening-to-improve-transforming-patient-relations-measurement-and-reporting-in-ontario
#18
Patricia Sullivan-Taylor, Rachel Frohlich, Anita Singh, Anna Greenberg
Effective patient relations are important to improve patient experience and deliver better care. Policy and legislative changes in Ontario have increased accountabilities for patient relations and expanded Health Quality Ontario (HQO)'s mandate. In response, HQO collaborated with patients, health sector organizations, associations and the Ministry of Health and Long-Term Care to co-design a patient relations measurement and reporting approach. Informed by an environmental scan, broad consultations, a multi-sector survey and a provincial advisory group, the approach includes standardized patient relations indicators to support measurement and public reporting across the hospital, home and long-term care sectors...
2017: Healthcare Quarterly
https://www.readbyqxmd.com/read/28550665/-survival-analysis-of-104-cases-of-osteosarcoma-with-lung-metastases
#19
J Ren, Y F Xu, T H Kuang, J Chen, Y X Liu
Objective: To investigate the prognosis of osteosarcoma patients with lung metastases and its correlated factors. Methods: The clinical data of 104 osteosarcoma patients with lung metastasis from April 2007 to September 2015 were retrospectively analyzed. Univariate analysis was performed using Kaplan-Meier and Log rank test. Multivariate Cox regression was applied to analyze independent prognostic factor for patient survival. Results: The one-year, two-year and five-year survival rates of the 104 osteosarcoma patients with lung pulmonary metastasis were 93...
April 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28550664/-synergistic-lethal-effect-of-combined-treatment-of-arsenic-trioxide-and-aclacinomycin-on-human-acute-myeloid-leukemia-cell-line-kg-1a
#20
Y B Ye, X J Xu, Y H Chen, M W Zhang, D F Qiu, Z W Guo, H Q He
Objective: To investigate the synergistic lethal effect and mechanism of arsenic trioxide (ATO) and aclacinomycin (ACM) on human acute myeloid leukemia cell line KG-1a. Methods: Colony-forming assay was used to detect the proliferation of KG-1a cells treated with different concentration of ATO and ACM. Compusyn software was used to analyze the synergistic effect of ATO and ACM. Flow cytometry and Wright's staining were used to analyze the apoptotic rate of KG-1a cells induced by combined treatment of ATO and ACM...
April 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
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