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https://www.readbyqxmd.com/read/29149758/oligotrophy-as-a-major-driver-of-mercury-bioaccumulation-in-medium-to-high-trophic-level-consumers-a-marine-ecosystem-comparative-study
#1
Tiphaine Chouvelon, Pierre Cresson, Marc Bouchoucha, Christophe Brach-Papa, Paco Bustamante, Sylvette Crochet, Françoise Marco-Miralles, Bastien Thomas, Joël Knoery
Mercury (Hg) is a global contaminant of environmental concern. Numerous factors influencing its bioaccumulation in marine organisms have already been described at both individual and species levels (e.g., size or age, habitat, trophic level). However, few studies have compared the trophic characteristics of ecosystems to explain underlying mechanisms of differences in Hg bioaccumulation and biomagnification among food webs and systems. The present study aimed at investigating the potential primary role of the trophic status of systems on Hg bioaccumulation and biomagnification in temperate marine food webs, as shown by their medium-to high-trophic level consumers...
November 14, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29149757/comparing-the-screening-property-of-the-shortened-versions-of-the-hypomania-checklist-32-hcl-32-cross-validation-in-korean-patients-with-bipolar-disorder-and-major-depressive-disorder
#2
Bin-Na Kim, Eun-Ho Lee, Hye-Jin Kim, Ji-Hae Kim
BACKGROUND: To date, shortened versions of the Hypomania Checklist-32 (HCL-32) were proposed to overcome the limitation of a lengthy format; however, a cross-validation study is currently needed to identify which shorter version may function optimally in a clinical sample. METHODS: In a Korean patient sample with bipolar disorder (BD) and major depressive disorder (MDD) (BD-I n = 84, BD = II n = 145, MDD n = 285), we examined the reliability and screening property of three shorter versions of the HCL (HCL-20, -16, -8) in comparison with the full HCL-32...
November 6, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29149756/residual-anxiety-may-be-associated-with-depressive-relapse-during-continuation-therapy-of-bipolar-ii-depression
#3
Lorenzo Lorenzo-Luaces, Jay D Amsterdam, Robert J DeRubeis
BACKGROUND: Anxiety symptoms are common in bipolar disorder. We explored the effect of anxiety on the outcome of acute and continuation pharmacotherapy of bipolar II depression. METHODS: Data were derived from a randomized double-blind 12-week acute (N = 129) and 6-month continuation (N = 55) comparison of venlafaxine versus lithium monotherapy in bipolar II depression in adults. We distinguished between the items of the Hamilton Rating Scale for Depression (HRSD) that capture depression vs...
November 8, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29149746/habitat-mosaics-and-path-analysis-can-improve-biological-conservation-of-aquatic-biodiversity-in-ecosystems-with-low-head-dams
#4
Sean M Hitchman, Martha E Mather, Joseph M Smith, Jane S Fencl
Conserving native biodiversity depends on restoring functional habitats in the face of human-induced disturbances. Low-head dams are a ubiquitous human impact that degrades aquatic ecosystems worldwide. To improve our understanding of how low-head dams impact habitat and associated biodiversity, our research examined complex interactions among three spheres of the total environment. i.e., how low-head dams (anthroposphere) affect aquatic habitat (hydrosphere), and native biodiversity (biosphere) in streams and rivers...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149743/multigenerational-effects-of-salinity-in-six-clonal-lineages-of-daphnia-longispina
#5
C Venâncio, R Ribeiro, A M V M Soares, I Lopes
Sea level rise, as a consequence of climate changes, is already causing seawater intrusion in some freshwater coastal ecosystems worldwide. The increase in salinity at these freshwater coastal ecosystems may occur gradually (through groundwater) or abruptly (through extreme weather events). Moreover, many of them are also being altered and threatened by anthropogenic activities. Accordingly, the present study aimed at assessing the multigenerational lethal and sublethal effects caused by increased salinity in six clonal lineages of the freshwater cladoceran Daphnia longispina differing in their sensitivity to lethal levels of copper...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149739/removal-of-tio2-nanoparticles-from-water-by-low-pressure-pilot-plant-filtration
#6
Josune Olabarrieta, Oihane Monzón, Yolanda Belaustegui, Jon-Iñaki Alvarez, Saioa Zorita
Rising use of nanoparticles in manufacturing as well as in commercial products bring issues related to environmental release and human exposure. A large amount of TiO2 nanoparticles will eventually reach wastewater treatment plants. Low pressure membrane filtration has been suggested as a feasible treatment of water streams. This study investigated first at laboratory scale the influence of: i) membrane material, ii) pore size and iii) water chemistry on nTiO2 removal. TiO2 retention was governed by the cake layer formation mechanism and significant retention of nanoparticles was observed even for filters having considerably larger pores than nTiO2...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149727/surface-modification-of-electrospun-poly-l-lactic-acid-scaffolds-by-reactive-magnetron-sputtering
#7
E N Bolbasov, P V Maryin, K S Stankevich, A I Kozelskaya, E V Shesterikov, Yu I Khodyrevskaya, M V Nasonova, D K Shishkova, Yu A Kudryavtseva, Y G Anissimov, S I Tverdokhlebov
In this study, we modified the surface of bioresorbable electrospun poly-(l-lactic) acid (PLLA) scaffolds by reactive magnetron sputtering of a titanium target under a nitrogen atmosphere. We examined the influence of the plasma treatment time on the structure and properties of electrospun PLLA scaffolds using SEM, XRF, FTIR, XRD, optical goniometry, and mechanical testing. It was observed that the coating formed did not change physicomechanical properties of electrospun PLLA scaffolds and simultaneously, increased their hydrophilicity...
November 12, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29149708/photodegradation-of-novel-oral-anticoagulants-under-sunlight-irradiation-in-aqueous-matrices
#8
Montaha Yassine, Laura Fuster, Marie-Hélène Dévier, Emmanuel Geneste, Patrick Pardon, Axelle Grélard, Erick Dufourc, Mohamad Al Iskandarani, Selim Aït-Aïssa, Jeanne Garric, Hélène Budzinski, Patrick Mazellier, Aurélien S Trivella
Kinetics of photodegradation of novel oral anticoagulants dabigatran, rivaroxaban, and apixaban were studied under simulated solar light irradiation in purified, mineral, and river waters. Dabigatran and rivaroxaban underwent direct photolysis with polychromatic quantum yields of 2.2 × 10(-4) and 4.4 × 10(-2), respectively. The direct photodegradation of apixaban was not observed after 19 h of irradiation. Kinetics of degradation of rivaroxaban was not impacted by the nature of the aqueous matrix while photosensitization from nitrate ions was observed for dabigatran and apixaban dissolved in a mineral water...
November 9, 2017: Chemosphere
https://www.readbyqxmd.com/read/29149705/toll-like-receptor-4-deficiency-increases-resistance-in-sepsis-induced-immune-dysfunction
#9
Chao Cao, Yanfen Chai, Songtao Shou, Jun Wang, Ying Huang, Tao Ma
Sepsis constitutes a serious life-threatening syndrome associated with complications of deregulated inflammatory response against endotoxin/lipopolysaccharide (LPS)-mediated severe infection. Toll-like receptor 4 (TLR4) plays a critical role in the activation of innate immunity through recognition of LPS. However, the impact of TLR4 signaling on the development of sepsis-induced immune dysfunction remains unclear. The aim of this study was to investigate the effect of TLR4 on regulatory T cells (Tregs) and its potential mechanism...
November 14, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29149701/risk-factor-analysis-of-equine-strongyle-resistance-to-anthelmintics
#10
G Sallé, J Cortet, I Bois, C Dubès, Q Guyot-Sionest, C Larrieu, V Landrin, G Majorel, S Wittreck, E Woringer, A Couroucé, J Guillot, P Jacquiet, F Guégnard, A Blanchard, A Leblond
Intestinal strongyles are the most problematic endoparasites of equids as a result of their wide distribution and the spread of resistant isolates throughout the world. While abundant literature can be found on the extent of anthelmintic resistance across continents, empirical knowledge about associated risk factors is missing. This study brought together results from anthelmintic efficacy testing and risk factor analysis to provide evidence-based guidelines in the field. It involved 688 horses from 39 French horse farms and riding schools to both estimate Faecal Egg Count Reduction (FECR) after anthelmintic treatment and to interview farm and riding school managers about their practices...
November 2, 2017: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/29149691/the-influence-of-intention-and-outcome-on-evaluations-of-social-interaction
#11
Xiaoying Wu, Rui Hua, Zhangxiang Yang, Jun Yin
Reading and making sense of social interactions between individuals is an important part of our daily social lives. Given that actions tend to be interpreted in terms of intent within the observed outcome, we investigated how intent and outcome interactively influence evaluations of social interactions. Through visual animations, intent was operationalized as an agent's (i.e., actor's) act intentionally or unintentionally having an influence on another agent (i.e., affectee). In Experiment 1, the act was helpful and the consequences brought small or great benefits to the affectee...
November 13, 2017: Acta Psychologica
https://www.readbyqxmd.com/read/29149683/online-sexual-solicitation-by-adults-and-peers-results-from-a-population-based-german-sample
#12
Halina Sklenarova, Anja Schulz, Petya Schuhmann, Michael Osterheider, Janina Neutze
Prevalence of Internet use among adolescents is high, but little is known about the online sexual activities of German adolescents. This study aimed to describe the 12-month prevalence of German adolescents' online sexual experiences with a focus on Online Sexual Solicitation (OSS, subjectively negative online sexual experiences with a peer or any sexual online experience, positive or negative, with an adult). A sample of male and female adolescents aged 14-17 (N=2238) was recruited using online survey panel...
November 14, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/29149673/the-feasibility-of-nanofiltration-membrane-bioreactor-nf-mbr-reverse-osmosis-ro-process-for-water-reclamation-comparison-with-ultrafiltration-membrane-bioreactor-uf-mbr-ro-process
#13
Ming Feng Tay, Chang Liu, Emile R Cornelissen, Bing Wu, Tzyy Haur Chong
This study examines the feasibility of a novel nanofiltration membrane bioreactor (NF-MBR) followed by reverse osmosis (RO) process for water reclamation at 90% recovery and using an ultrafiltration MBR (UF-MBR)+RO as baseline for comparison. Both MBRs adopted the same external hollow fiber membrane configurations and operating conditions. The collected permeates of the MBRs were subsequently fed to the respective RO systems. The results showed that the NF-MBR (operated at a constant flux of 10 L/m(2)h) achieved superior MBR permeate quality due to enhanced biodegradation and high rejection capacity of the NF membrane, leading to lower RO fouling rates (∼3...
November 7, 2017: Water Research
https://www.readbyqxmd.com/read/29149666/relationship-between-radiographic-patella-alta-pathology-and-walking-dysfunction-in-children-with-bilateral-spastic-cerebral-palsy
#14
Matthias Hösl, Harald Böhm, Michaela Seltmann, Chakravarthy Ugandhar Dussa, Leonhard Döderlein
BACKGROUND: Patella-alta is very common in patients with Cerebral Palsy (CP). While several diagnostic x-ray indices have been developed for patella-alta in general, the specific relationship with walking dysfunction in CP is only partly understood. METHODS: 33 participants with bilateral spastic CP between 4 and 20 years (GMFCS I-II without previous surgery) that underwent 3D gait analysis as well as a radiographic exam within 0.8 (SD 1.2) months were retrospectively included...
November 10, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29149658/evaluating-casama-contextualized-semantic-maps-for-summarization-of-lung-cancer-studies
#15
Jean I Garcia-Gathright, Nicholas J Matiasz, Carlos Adame, Karthik V Sarma, Lauren Sauer, Nova F Smedley, Marshall L Spiegel, Jennifer Strunck, Edward B Garon, Ricky K Taira, Denise R Aberle, Alex A T Bui
OBJECTIVE: It is crucial for clinicians to stay up to date on current literature in order to apply recent evidence to clinical decision making. Automatic summarization systems can help clinicians quickly view an aggregated summary of literature on a topic. Casama, a representation and summarization system based on "contextualized semantic maps," captures the findings of biomedical studies as well as the contexts associated with patient population and study design. This paper presents a user-oriented evaluation of Casama in comparison to a context-free representation, SemRep...
November 3, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29149655/one-year-after-ischemic-stroke-changes-in-leg-movement-path-stability-in-a-speed-accuracy-task-but-no-major-effects-on-the-hands
#16
Albertas Skurvydas, Vilma Juodzbaliene, Tomas Darbutas, Marius Brazaitis
First year after the stroke is essential for motor recovery. The main motor control strategy (i.e., faster movement production at the expense of lower movement accuracy and stability, or greater movement accuracy and stability at the expense of slower movement) selected by poststroke patients during a unilateral speed-accuracy task (SAT) remains unclear. We aimed to investigate the poststroke (12 months after stroke) effects on the trade-off between movement speed and accuracy, and intraindividual variability during a motor performance task...
November 14, 2017: Human Movement Science
https://www.readbyqxmd.com/read/29149643/the-role-of-the-p38-activated-protein-kinase-signaling-pathway-mediated-autophagy-in-cadmium-exposed-monogonont-rotifer-brachious-koreanus
#17
Hye-Min Kang, Chang-Bum Jeong, Min-Sub Kim, Jin-Sol Lee, Jiaying Zhou, Young Hwan Lee, Duck-Hyun Kim, Eunyoung Moon, Hee-Seok Kweon, Su-Jae Lee, Jae-Seong Lee
Autophagy is a 'self-eating' system that regulates the degradation of cellular components and is involved in various biological processes including survival and development. However, despite its crucial role in organisms, the regulatory mechanism of autophagy remains largely unclear, particularly in invertebrates. In this study, conserved autophagy in the rotifer Brachionus koreanus in response to cadmium (Cd) exposure was verified by measuring acidic vesicle organelles using acridine orange (AO) and neutral red (NR) staining, and by detecting LC3 I/II on Western blot and immunofluorescence...
November 10, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/29149639/translation-cross-cultural-adaptation-and-measurement-properties-of-the-brazilian-version-of-the-identification-of-functional-ankle-instability-idfai-questionnaire
#18
Bruna Reclusa Martinez, Andrea D Lopes Sauers, Cintia Lopes Ferreira, Luciana de Castro Lugli, Paola Christina Gama Turchetto, Carrie L Docherty, Liu Chiao Yi
OBJECTIVES: The aim of this research was to describe the translation and cultural adaptation, and to test the validity and reliability of the Brazilian version of the Identification of Functional Ankle Instability (IdFAI) questionnaire. DESIGN: This was a clinical measurement. SETTING: This research took place at the Federal University of Sao Paulo in Brazil. PARTICIPANTS: Fifty college students participated in the translation and cultural adaptation, while another 50 students participated in the measurements (validity and reliability)...
October 7, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29149625/the-effects-of-pre-and-post-slaughter-spray-application-with-organic-acids-on-microbial-population-reductions-on-beef-carcasses
#19
Hoa Van Ba, Hyun-Woo Seo, Seong Pil-Nam, Yoon-Seok Kim, Beom Young Park, Sung-Sil Moon, Se-Ju Kang, Yong-Min Choi, Jin-Hyoung Kim
As an attempt to control bacterial cross-contamination of beef carcasses, in the present investigation acetic acid and lactic acid (3% v/v) were used for bacterial decontamination. For the decontamination, cows were sprayed with each above acid at two different stages; (i) on live animal's hides, (ii) on carcass surfaces immediately after slaughter. Microbiological samples were taken on different hide areas of animals before spraying and on carcass surfaces at 24h after spraying. Meat quality traits were also analyzed on the sprayed animals...
November 6, 2017: Meat Science
https://www.readbyqxmd.com/read/29149611/core-clinical-data-elements-for-cancer-genomic-repositories-a-multi-stakeholder-consensus
#20
Robert B Conley, Dane Dickson, Jean Claude Zenklusen, Jennifer Al Naber, Donna A Messner, Ajlan Atasoy, Lena Chaihorsky, Deborah Collyar, Carolyn Compton, Martin Ferguson, Sean Khozin, Roger D Klein, Sri Kotte, Razelle Kurzrock, C Jimmy Lin, Frank Liu, Ingrid Marino, Robert McDonough, Amy McNeal, Vincent Miller, Richard L Schilsky, Lisa I Wang
The Center for Medical Technology Policy and the Molecular Evidence Development Consortium gathered a diverse group of more than 50 stakeholders to develop consensus on a core set of data elements and values essential to understanding the clinical utility of molecularly targeted therapies in oncology.
November 16, 2017: Cell
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