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https://www.readbyqxmd.com/read/28928681/how-does-l1-and-l2-exposure-impact-l1-performance-in-bilingual-children-evidence-from-polish-english-migrants-to-the-united-kingdom
#1
Ewa Haman, Zofia Wodniecka, Marta Marecka, Jakub Szewczyk, Marta Białecka-Pikul, Agnieszka Otwinowska, Karolina Mieszkowska, Magdalena Łuniewska, Joanna Kołak, Aneta Miękisz, Agnieszka Kacprzak, Natalia Banasik, Małgorzata Foryś-Nogala
Most studies on bilingual language development focus on children's second language (L2). Here, we investigated first language (L1) development of Polish-English early migrant bilinguals in four domains: vocabulary, grammar, phonological processing, and discourse. We first compared Polish language skills between bilinguals and their Polish non-migrant monolingual peers, and then investigated the influence of the cumulative exposure to L1 and L2 on bilinguals' performance. We then examined whether high exposure to L1 could possibly minimize the gap between monolinguals and bilinguals...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28925042/clinical-comparison-of-actinic-changes-preceding-squamous-cell-carcinoma-vs-intraepidermal-carcinoma-in-renal-transplant-recipients
#2
Z Jiyad, P O'Rourke, H P Soyer, A C Green
Intraepidermal carcinoma (IEC) is a type of in situ squamous cell carcinoma (SCC), although progression of IEC is rare. We sought to investigate differences between the actinic skin changes preceding the development of both SCC and IEC. Photographs of 63 skin sites at which either SCC or IEC subsequently developed in 37 renal transplant recipients (RTRs) were examined for features of actinic change. We found that areas of skin with an actinic keratosis (AK) > 1 cm(2) in size were four times more likely to develop SCC as opposed to IEC (OR = 4...
September 19, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28924503/biochemical-and-structural-characterization-of-a-novel-arginine-kinase-from-the-spider-polybetes-pythagoricus
#3
Aldana Laino, Alonso A Lopez-Zavala, Karina D Garcia-Orozco, Jesus S Carrasco-Miranda, Marianela Santana, Vivian Stojanoff, Rogerio R Sotelo-Mundo, Carlos Fernando Garcia
Energy buffering systems are key for homeostasis during variations in energy supply. Spiders are the most important predators for insects and therefore key in terrestrial ecosystems. From biomedical interest, spiders are important for their venoms and as a source of potent allergens, such as arginine kinase (AK, EC 2.7.3.3). AK is an enzyme crucial for energy metabolism, keeping the pool of phosphagens in invertebrates, and also an allergen for humans. In this work, we studied AK from the Argentininan spider Polybetes pythagoricus (PpAK), from its complementary DNA to the crystal structure...
2017: PeerJ
https://www.readbyqxmd.com/read/28923414/a-proteomic-approach-to-the-mechanisms-underlying-activation-of-aluminium-resistance-in-roots-of-urochloa-decumbens
#4
Catalina Arroyave, Roser Tolrà, Livia Chaves, Marcelo Claro de Souza, Juan Barceló, Charlotte Poschenrieder
The mechanisms of extreme Al-resistance in Urochloa decumbens are not established. Full resistance expression requires a lag time of 72-96h and is preceded by a sensitive phase (24-48h) with Al-induced root growth inhibition. The aim here was to identify key processes of the activation phase of Al-resistance analysing both root exudates and comparative root proteome. Samples were taken after 0, 24 and 96h exposure to 0 or 200μM Al. Al-induced stimulation of citrate and oxalate efflux was limited to the sensitive phase...
September 10, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28922872/ancient-occasional-host-switching-of-maternally-transmitted-bacterial-symbionts-of-chemosynthetic-vesicomyid-clams
#5
Genki Ozawa, Shigeru Shimamura, Yoshihiro Takaki, Kiyotaka Takishita, Tetsuro Ikuta, James P Barry, Tadashi Maruyama, Katsunori Fujikura, Takao Yoshida
Vesicomyid clams in deep-sea chemosynthetic ecosystems harbor sulfur-oxidizing bacteria in their gill epithelial cells. These symbionts, which are vertically transmitted, are species-specific and thought to have cospeciated with their hosts. However, recent studies indicate incongruent phylogenies between some vesicomyid clams and their symbionts, suggesting that symbionts are horizontally transmitted. To more precisely understand the evolution of vesicomyid clams and their symbionts, we compared the evolution of vesicomyid clams and their symbionts through phylogenetic analyses using multi-gene data sets...
September 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28919332/correlation-of-radical-scavenging-capacity-and-amoebicidal-activity-of-matricaria-recutita-l-asteraceae
#6
Soumaya Hajaji, Ines Sifaoui, Atteneri López-Arencibia, María Reyes-Batlle, Ignacio A Jiménez, Isabel L Bazzocchi, Basilio Valladares, José E Pinero, Jacob Lorenzo-Morales, Hafidh Akkari
Some Acanthamoeba strains are able to cause Granulomatous Amoebic Encephalitis (GAE) and Acanthamoeba keratitis (AK) worldwide because of their pathogenicity. The treatment of Acanthamoeba infections is complicated due to the existence of a highly resistant cyst stage in their life cycle. Therefore, the elucidation of novel sources of anti-Acanthamoeba agents is an urgent need. In the present study, an evaluation of the antioxidant and anti-Acanthamoeba activity of compounds in flower extracts of Tunisian chamomile (Matricaria recutita L...
September 14, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28918001/in%C3%A2-vitro-evaluation-of-antimicrobial-agents-on-acanthamoeba-sp-and-evidence-of-a-natural-resilience-to-amphotericin-b
#7
Alexandre Taravaud, Philippe M Loiseau, Sébastien Pomel
The free-living amoeba (FLA) Acanthamoeba sp. is an opportunistic pathogen that can cause amoebic keratitis (AK) or granulomatous amoebic encephalitis (GAE). While current treatments of AK are long with some relapses, no consensus therapy has been developed for GAE remaining lethal in 90% of the cases. In this context, efficient antiacanthamoebal drugs have to be identified. In this work, 15 drugs used in the treatment of AK or GAE or in other parasitic diseases were evaluated for their in vitro activity on A...
September 8, 2017: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/28916457/in-vitro-activity-of-1h-phenalen-1-one-derivatives-against-acanthamoeba-castellanii-neff-and-their-mechanisms-of-cell-death
#8
Atteneri López-Arencibia, María Reyes-Batlle, Mónica Blanco Freijo, Grant McNaughton-Smith, Patricia Martín-Rodríguez, Leandro Fernández-Pérez, Ines Sifaoui, Carolina Wagner, Ana B García-Méndez, Aitor Rizo Liendo, Carlos J Bethencourt-Estrella, Teresa Abad-Grillo, José E Piñero, Jacob Lorenzo-Morales
Acanthamoeba is an opportunistic pathogen which is the causal agent of a sight-threatening ulceration of the cornea known as Acanthamoeba keratitis (AK) and, more rarely, an infection of the central nervous system called "granulomatous amoebic encephalitis" (GAE). The symptoms of AK are non-specific, and so it can be misdiagnosed as a viral, bacterial, or fungal keratitis. Furthermore, current therapeutic measures against AK are arduous, and show limited efficacy against the cyst stage of Acanthamoeba. 1H-Phenalen-1-one (PH) containing compounds have been isolated from plants and fungi, where they play a crucial role in the defense mechanism of plants...
September 12, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28916288/anti-apoptotic-and-moderate-anti-inflammatory-effects-of-berberine-in-sulfur-mustard-exposed-keratinocytes
#9
Simon Lang, Tanja Popp, Christian Silvester Kriegs, Annette Schmidt, Frank Balszuweit, Georg Menacher, Kai Kehe, Horst Thiermann, Thomas Gudermann, Dirk Steinritz
Skin affections after sulfur mustard (SM) exposure include erythema, blister formation and severe inflammation. An antidote or specific therapy does not exist. Anti-inflammatory compounds as well as substances counteracting SM-induced cell death are under investigation. In this study, we investigated the benzylisoquinoline alkaloide berberine (BER), a metabolite in plants like berberis vulgaris, which is used as herbal pharmaceutical in Asian countries, against SM toxicity using a well-established in vitro approach...
September 12, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28912002/living-systematic-review-1-introduction-the-why-what-when-and-how
#10
Julian H Elliott, Anneliese Synnot, Tari Turner, Mark Simmonds, Elie A Ak, Steve McDonald, Georgia Salanti, Joerg Meerpohl, Harriet MacLehose, John Hilton, Ian Shemilt, James Thomas
Systematic reviews are difficult to keep up to date, but failure to do so leads to a decay in review currency, accuracy and utility. We are developing a novel approach to systematic review updating we term 'living systematic review' (LSR): systematic reviews which are continually updated, incorporating relevant new evidence as it becomes available. Living systematic reviews may be particularly important in fields where research evidence is emerging rapidly, current evidence is unclear and new research may change policy or practice decisions...
September 1, 2017: Journal of Clinical Epidemiology
https://www.readbyqxmd.com/read/28905294/high-patient-satisfaction-with-daylight-activated-methyl-aminolevulinate-cream-in-the-treatment-of-multiple-actinic-keratoses-results-of-an-observational-study-in-australia
#11
Jo-Ann See, Kurt Gebauer, Jason K Wu, Shobhan Manoharan, Nabil Kerrouche, John Sullivan
INTRODUCTION: Actinic keratoses (AK) are treated to reduce the risk of progression to squamous cell carcinoma and for symptomatic and cosmetic benefits. The objective of this observational study was to generate real-life data on the use of daylight photodynamic therapy with methyl aminolevulinate cream (MAL DL-PDT) in treating mild to moderate facial/scalp AK. METHODS: A multicenter, prospective, observational study was conducted in Australia in patients receiving a single treatment of MAL DL-PDT for mild to moderate AK...
September 13, 2017: Dermatology and Therapy
https://www.readbyqxmd.com/read/28902410/monascus-fermented-red-mold-dioscorea-protects-mice-against-alcohol-induced-liver-injury-while-its-metabolites-ankaflavin-and-monascin-regulates-ethanol-induced-ppar-%C3%AE-and-srebp-1-expression-in-hepg2-cells
#12
Chih-Fu Cheng, Tzu-Ming Pan
BACKGROUND: Alcoholic hepatitis is a necroinflammatory process that is associated with fibrosis and leads to cirrhosis in 40% of cases. The hepatoprotective effects of red mold dioscorea (RMD) from Monascus purpureus NTU 568 were evaluated in vivo using a mouse model of chronic alcohol-induced liver disease (ALD). RESULTS: ALD mice were orally administered vehicle (ALD group) or vehicle plus 307.5, 615.0, or 1537.5 mg kg(-1) (1×, 2×, and 5×) RMD for 5 weeks...
September 13, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28893700/comparison-of-radiation-exposure-during-endovascular-treatment-of-peripheral-arterial-disease-with-flat-panel-detectors-on-mobile-c-arm-vs-fixed-systems
#13
Marie Guillou, Blandine Maurel, Hatem Necib, Pierre-Alexandre Vent, Alain Costargent, Philippe Chaillou, Yann Gouëffic, Adrien Kaladji
PURPOSE: Flat-panel detectors on mobile C-arm (MC-arm) systems are currently challenging fixed C-arm (FC-arm) systems used in hybrid operating rooms. MC-arm systems offer an alternative to FC-arm systems in the endovascular treatment of peripheral arterial disease (PAD) but their efficiency has not been evaluated comparatively. METHODS: Two series of patients undergoing arteriography with intention to treat were included. Each series consisted of two non-randomized groups: an MC-arm group and an FC-arm group...
September 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28892885/an-analysis-into-metacognition-and-family-history-of-diabetes-mellitus-among-first-year-medical-students
#14
Ak Sunitha Priya, Rose Babu, Pallavi Panchu, Biju Bahuleyan
INTRODUCTION: Medical course requires immense effort by the students to deal with vast curriculum and hence, the need to adopt metacognitive skill to cope up. Diabetes mellitus has an impact on cognition. Metacognition, being a component of cognition, is likely to be affected by diabetes. Children of diabetic parents have demonstrated insulin resistance which may contribute to metacognitive dysfunction. Hence, it is important to focus into the link between family history of diabetes and metacognition...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28887631/the-efficient-removal-of-thallium-from-sintering-flue-gas-desulfurization-wastewater-in-ferrous-metallurgy-using-emulsion-liquid-membrane
#15
Li Yang, Jiangping Xiao, Yi Shen, Xian Liu, Wensong Li, Weiyan Wang, Yunquan Yang
The removal of thallium ions in flue gas desulfurization wastewater from ferrous metallurgic industry was studied by emulsion liquid membrane (ELM) method using 2-ethylhexyl phosphoric acid-2-ethylhexyl ester (P507) as carrier, aviation kerosene (AK) as organic solvent, polyisobutylene succinimide (T154) as surfactant, polyisobutylene (PIB) as additive, and sulfuric acid as internal reagent. Some important influence parameters such as concentrations of carrier, surfactant and stripping agent, agitation speed, extraction time, volume ratios of feed solution to emulsion phase and internal phase to membrane phase, and their effects on the removal efficiency of Tl in the ELM process were investigated and optimized...
September 8, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28887274/the-qualitative-grading-of-muscle-fat-infiltration-in-whiplash-using-fat-water-magnetic-resonance-imaging
#16
Rebecca Abbott, Anneli Peolsson, Janne West, James M Elliott, Ulrika Åslund, Anette Karlsson, Olof Dahlqvist Leinhard
BACKGROUND CONTEXT: Development of muscle fat infiltration (MFI) in the neck muscles is associated with poor functional recovery following whiplash injury. Custom software and time-consuming manual segmentation of magnetic resonance (MR) images is required for quantitative analysis and presents as a barrier for clinical translation. PURPOSE: The purpose of this work was to establish a qualitative MR measure for MFI and evaluate its ability to differentiate between individuals with severe whiplash-associated disorder (WAD), mild/moderate WAD, and healthy controls...
September 5, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28874585/active-molecular-iodine-photochemistry-in-the-arctic
#17
Angela R W Raso, Kyle D Custard, Nathaniel W May, David Tanner, Matt K Newburn, Lawrence Walker, Ronald J Moore, L G Huey, Liz Alexander, Paul B Shepson, Kerri A Pratt
During springtime, the Arctic atmospheric boundary layer undergoes frequent rapid depletions in ozone and gaseous elemental mercury due to reactions with halogen atoms, influencing atmospheric composition and pollutant fate. Although bromine chemistry has been shown to initiate ozone depletion events, and it has long been hypothesized that iodine chemistry may contribute, no previous measurements of molecular iodine (I2) have been reported in the Arctic. Iodine chemistry also contributes to atmospheric new particle formation and therefore cloud properties and radiative forcing...
September 5, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28869731/-prokaryotic-expression-purification-and-characterization-of-arginine-kinase-of-bombyx-mori
#18
Huawei He, Yejing Wang, Minjian Zhao, Shuguang Wei, Peng Zhao, Wenchao Jiang, Li'na Liu, Ping Zhao
Arginine kinase (AK) is a key enzyme in energy metabolism of invertebrates and plays an important regulatory role in the life activities such as growth and development, nutrition utilization, immune resistance and stress response. Arginine kinase of Bombyx mori (BmAK) is related to the energy balance and anti-NPV process, but there is little research on its molecular structure and enzymatic properties. We cloned the ORF sequence of BmAK gene, and analyzed chromosomal localization, genomic structure, mRNA structure, secondary and tertiary structure...
July 25, 2017: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/28864570/isolation-propagation-and-differentiation-of-radial-glia-like-neural-progenitor-cells-in-adherent-cultures
#19
Balazs Varga, Andras Nagy
This protocol describes the isolation of radial glia-like neural progenitors (RGLs) from embryonic and adult mouse brain. Their propagation as an adherent monolayer is greatly supported by use of the AK-cyclo(RGDfC) adhesive peptide-conjugate that allows the application of fully defined culture conditions in which epidermal growth factor (EGF) represents the only growth factor supplement. RGL cells maintained that way can be efficiently differentiated into the three major CNS cell types: neurons, astrocytes, and oligodendrocytes...
September 1, 2017: Cold Spring Harbor Protocols
https://www.readbyqxmd.com/read/28862392/minimizing-exposure-to-radiation-in-invasive-cardiology-using-modern-dose-reduction-technology-evaluation-of-the-real-life-effects
#20
Laurent Faroux, Thierry Blanpain, Pierre Nazeyrollas, Sophie Tassan-Mangina, Benoît Herce, Christophe Tourneux, Damien Metz
OBJECTIVES: We aimed to measure the reduction in the estimated dose of radiation received by patients that can be achieved using dose-reduction technology (ClarityIQ, Philips Healthcare, The Netherlands), among all patients undergoing invasive cardiology procedures. BACKGROUND: Medical procedures remain the primary source of exposure to ionizing radiation in the general population. METHODS: The study population comprised all patients (without exclusion criteria) undergoing invasive coronary procedures over a 1-year study period in a large referral centre equipped with two catheterization laboratories (cathlabs)...
September 1, 2017: Catheterization and Cardiovascular Interventions
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