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https://www.readbyqxmd.com/read/27914350/phosphorus-flows-in-a-peri-urban-region-with-intensive-food-production-a-case-study
#1
S Bittman, S C Sheppard, D Poon, D E Hunt
Excess phosphorus (P) in peri-urban regions is an emerging issue, whereas there is global depletion of quality mined supplies of P. The flow of P across the landscape leading to regional surpluses and deficits is not well understood. We computed a regional P budget with internal P flows in a fairly discreet peri-urban region (Lower Fraser Valley, BC) with closely juxtaposed agricultural and non-agricultural urban ecosystems, in order to clarify the relationship between food production, food consumption and other activities involving use of P (e...
November 30, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27914210/randomized-controlled-trial-of-oral-immunotherapy-for-egg-allergy-in-japanese-patients
#2
Masayuki Akashi, Hiroki Yasudo, Masami Narita, Ichiro Nomura, Akira Akasawa, Motohiro Ebisawa, Takao Takahashi, Yukihiro Ohya
BACKGROUND: Egg allergy is one of the most common food allergies in young child. While oral immunotherapy (OIT) is not routinely recommended in current guidelines, it has been considered as a potential alternative treatment strategy. Studies on OIT for food allergies have been explored; however, no studies with control group have been reported in Japan. METHODS: The first oral food challenge test (OFC) was performed on participants before treatment to ensure the diagnosis and evaluate the threshold dose for egg by the way of double-blind, placebo-controlled food challenge (DBPCFC)...
December 3, 2016: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/27913739/structure-activity-relation-of-amor-sugar-molecule-that-activates-pollen-tubes-for-ovular-guidance
#3
Jiao Jiao, Akane G Mizukami, Subramanian Sankaranarayanan, Junichiro Yamguchi, Kenichiro Itami, Tetsuya Higashiyama
Successful fertilization in flowering plants depends on the precise directional growth control of pollen tube through the female pistil tissue, towards the female gametophyte contained in the ovule for delivery of non-motile sperm cells. Cysteine-rich peptides LUREs secreted from the synergid cells on either side of the egg cell act as ovular attractants of pollen tubes. Competency control by the pistil is crucial for the response of pollen tubes to these ovular attractants. We recently reported that ovular 4-O-methyl-glucuronosyl arabinogalactan AMOR induces competency of the pollen tube to respond to ovular attractant LURE peptides in Torenia fournieri...
December 2, 2016: Plant Physiology
https://www.readbyqxmd.com/read/27913622/a-venom-serpin-splicing-isoform-of-the-endoparasitoid-wasp-pteromalus-puparum-suppresses-host-prophenoloxidase-cascade-by-forming-complexes-with-host-hemolymph-proteinases
#4
Zhichao Yan, Qi Fang, Yang Liu, Shan Xiao, Lei Yang, Fei Wang, Chunju An, John H Werren, Gongyin Ye
To ensure successful parasitism, parasitoid wasps inject venom along with their eggs into their hosts. The venom serves to suppress host immune responses, including melanization. Venom from Pteromalus puparum, a pupal endoparasitoid, inhibits melanization of host hemolymph in vitro in a dose-dependent manner. Using assay guided fractionation, a serpin splicing isoform with phenoloxidase (PO) inhibitory activity was identified as P. puparum serpin-1, venom isoform (PpS1V). This serpin gene has 16 predicted splicing isoforms that differ only in the C-terminal region...
December 2, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27913599/the-effect-of-food-quality-during-growth-on-spatial-memory-consolidation-in-adult-pigeons
#5
M F Scriba, J Gasparini, L Jacquin, C Mettke-Hofmann, N C Rattenborg, A Roulin
Poor environmental conditions experienced during early development can have negative long-term consequences on fitness. Animals can compensate negative developmental effects through phenotypic plasticity by diverting resources from non-vital to vital traits such as spatial memory to enhance foraging efficiency. We tested in young feral pigeons (Columba livia) how diets of different nutritional value during development affect the capacity to retrieve food hidden in a spatially complex environment, a process we refer to as "spatial memory"...
December 2, 2016: Journal of Experimental Biology
https://www.readbyqxmd.com/read/27913150/juvenile-hormone-titers-ovarian-status-and-epicuticular-hydrocarbons-in-gynes-and-workers-of-the-paper-wasp-belonogaster-longitarsus
#6
Hans C Kelstrup, Klaus Hartfelder, Nanike Esterhuizen, Theresa C Wossler
The prevailing paradigm for social wasp endocrinology is that of juvenile hormone (JH) functioning pleiotropically in potential and actual queens, where it fuels dominance behaviors, stimulates ovarian growth and/or affects the production of status-linked cuticular compounds. In colonies with annual cycles (e.g., temperate-zone species), female adults produced at the end of the summer (called gynes) are physiologically primed to hibernate. Despite the absence of egg-laying in the pre-overwintering phase, gynes engage in dominance interactions that may affect reproductive potential following hibernation...
November 29, 2016: Journal of Insect Physiology
https://www.readbyqxmd.com/read/27913142/candida-species-from-oral-cavity-of-hiv-infected-children-exhibit-reduced-virulence-factors-in-the-haart-era
#7
Maristela Barbosa Portela, Elaine Lima de Amorim, Adrielle Mangabeira Santos, José Alexandre da Rocha Curvelo, Karol de Oliveira Martins, Cauli Lima Capillé, Rosangela Maria de Araújo Soares, Gloria Fernanda Barbosa de Araújo Castro
This study aimed to assess, in vitro, the biofilm viability and the phospholipase and protease production of Candida spp. from the saliva of HIV infected children and healthy controls, and to correlate the results with the use of medical data. A total of 79 isolates were analyzed: 48 Candida albicans isolates (33/15) and 20 Candida parapsilosis sensu lato complex isolates (12/8) (from HIV/control patients, respectively), and 8 Candida krusei, 1 Candida tropicalis, 1 Candida dubliniensis and 1 Candida guilliermondii from HIV patients...
November 29, 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27913108/chicken-line-dependent-mortality-after-experimental-infection-with-three-type-iixiii-recombinant-toxoplasma-gondii-clones
#8
G Schares, D C Herrmann, P Maksimov, B Matzkeit, F J Conraths, G Moré, R Preisinger, S Weigend
Three genetically different clones of Toxoplasma gondii, also different in mouse virulence, were studied by experimental infection in chickens. For the experiments, four chicken lines were used, which differed in phylogenetic origin and performance level: two white egg layer lines, one with high laying performance (WLA), one with low (R11) and two brown layer lines, also displaying high (BLA) and low (L68) egg number. Chickens were intraperitoneally infected with three different T. gondii isolates representing type IIxIII recombinant clones, i...
November 29, 2016: Experimental Parasitology
https://www.readbyqxmd.com/read/27912163/reproduction-impairment-and-endocrine-disruption-in-adult-zebrafish-danio-rerio-after-waterborne-exposure-to-tboep
#9
Qinglong Xu, Ding Wu, Yao Dang, Liqin Yu, Chunsheng Liu, Jianghua Wang
Tris (2-butoxyethyl) phosphate (TBOEP) is widely used as a substitute of polybrominated diphenyl ethers (PBDEs). It has been frequently measured at concentrations of micrograms per liter (μg/L) in surface waters and waste water. However, limited information is available about the reproduction toxicology of TBOEP. In this study, adult zebrafish pairs were exposed to TBOEP at concentrations of 0, 5, 50, and 500μg/L for 21days. The effects on reproduction, hormone concentration, transcription of genes along the hypothalamic-pituitary-gonadal (HPG) axis, and gonadal development were investigated...
November 24, 2016: Aquatic Toxicology
https://www.readbyqxmd.com/read/27912006/cascading-effects-of-predation-risk-determine-how-marine-predators-become-terrestrial-prey-on-an-oceanic-island
#10
Sarah K Thomsen, David J Green
Apex predators can suppress the foraging activity of mesopredators, which may then result in cascading benefits for the prey of those mesopredators. We studied the interactions between a top predator, the Barn Owl (Tyto alba), and their primary prey, an island endemic deer mouse (Peromyscus maniculatus elusus), which in turn consumes the eggs of seabirds nesting on Santa Barbara Island in California. Scripps's Murrelets (Synthliboramphus scrippsi), a threatened nocturnal seabird, arrive annually to breed on this island, and whose first egg is particularly vulnerable to predation by mice...
December 2016: Ecology
https://www.readbyqxmd.com/read/27911903/transfected-babesia-bovis-expressing-a-tick-gst-as-a-live-vector-vaccine
#11
Daiane P Oldiges, Jacob M Laughery, Nelson Junior Tagliari, Ronaldo Viana Leite Filho, William C Davis, Itabajara da Silva Vaz, Carlos Termignoni, Donald P Knowles, Carlos E Suarez
The Rhipicephalus microplus tick is a notorious blood-feeding ectoparasite of livestock, especially cattle, responsible for massive losses in animal production. It is the main vector for transmission of pathogenic bacteria and parasites, including Babesia bovis, an intraerythrocytic apicomplexan protozoan parasite responsible for bovine Babesiosis. This study describes the development and testing of a live B. bovis vaccine expressing the protective tick antigen glutathione-S-transferase from Haemaphysalis longicornis (HlGST)...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27911812/cytoskeleton-dynamics-control-the-first-asymmetric-cell-division-in-arabidopsis-zygote
#12
Yusuke Kimata, Takumi Higaki, Tomokazu Kawashima, Daisuke Kurihara, Yoshikatsu Sato, Tomomi Yamada, Seiichiro Hasezawa, Frederic Berger, Tetsuya Higashiyama, Minako Ueda
The asymmetric cell division of the zygote is the initial and crucial developmental step in most multicellular organisms. In flowering plants, whether zygote polarity is inherited from the preexisting organization in the egg cell or reestablished after fertilization has remained elusive. How dynamically the intracellular organization is generated during zygote polarization is also unknown. Here, we used a live-cell imaging system with Arabidopsis zygotes to visualize the dynamics of the major elements of the cytoskeleton, microtubules (MTs), and actin filaments (F-actins), during the entire process of zygote polarization...
November 22, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27911710/eml-proteins-in-microtubule-regulation-and-human-disease
#13
REVIEW
Andrew M Fry, Laura O'Regan, Jessica Montgomery, Rozita Adib, Richard Bayliss
The EMLs are a conserved family of microtubule-associated proteins (MAPs). The founding member was discovered in sea urchins as a 77-kDa polypeptide that co-purified with microtubules. This protein, termed EMAP for echinoderm MAP, was the major non-tubulin component present in purified microtubule preparations made from unfertilized sea urchin eggs [J. Cell Sci. (1993) 104: , 445-450; J. Cell Sci. (1987) 87: (Pt 1), 71-84]. Orthologues of EMAP were subsequently identified in other echinoderms, such as starfish and sand dollar, and then in more distant eukaryotes, including flies, worms and vertebrates, where the name of ELP or EML (both for EMAP-like protein) has been adopted [BMC Dev...
October 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27911012/the-role-of-age-of-disclosure-of-biological-origins-in-the-psychological-wellbeing-of-adolescents-conceived-by-reproductive-donation-a-longitudinal-study-from-age-1-to-age-14
#14
Elena Ilioi, Lucy Blake, Vasanti Jadva, Gabriela Roman, Susan Golombok
BACKGROUND: The question of whether children should be told of their biological origins is one of the most controversial issues regarding the birth of children through donated eggs, sperm, embryos or surrogacy. METHODS: In the sixth phase of this longitudinal study when the children were aged 14 years, family relationships and adolescent adjustment were examined in 87 families created through reproductive donation and 54 natural conception families. The quality of family relationships was assessed by standardised interview with mothers and by standardised questionnaires and an observational measure with mothers and adolescents...
December 2, 2016: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/27910840/-na-%C3%A2-5-mno2-13-nanorods-a-new-tunnel-structure-for-electrode-materials-determined-ab-initio-and-refined-through-a-combination-of-electron-and-synchrotron-diffraction-data
#15
Enrico Mugnaioli, Mauro Gemmi, Marco Merlini, Michele Gregorkiewitz
(Nax□1 - x)5[MnO2]13 has been synthesized with x = 0.80 (4), corresponding to Na0.31[MnO2]. This well known material is usually cited as Na0.4[MnO2] and is believed to have a romanèchite-like framework. Here, its true structure is determined, ab initio, by single-crystal electron diffraction tomography (EDT) and refined both by EDT data applying dynamical scattering theory and by the Rietveld method based on synchrotron powder diffraction data (χ(2) = 0.690, Rwp = 0.051, Rp = 0.037, RF2 = 0.035). The unit cell is monoclinic C2/m, a = 22...
December 1, 2016: Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials
https://www.readbyqxmd.com/read/27909569/the-walking-egg-project-how-to-start-a-twe-centre
#16
W Ombelet, J Goossens
The main objective of the Walking Egg non-profit organization is the implementation of good quality and affordable infertility centres in resource-poor countries. Three levels of assistance are suggested: A level 1 infertility clinic is a basic infertility clinic capable of offering semen analysis, hormonal assays, follicular scanning, ovulation induction and intrauterine inseminations. Level 2 infertility clinics are supposed to perform simplified IVF as well. Level 3 infertility clinics capable of offering ICSI, cryopreservation and operative endoscopy are not part of the Walking Egg Project in the initial phase...
June 27, 2016: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/27909559/identification-of-dietary-patterns-in-urban-population-of-argentina-study-on-diet-obesity-relation-in-population-based-prevalence-study
#17
Sonia Alejandra Pou, María Del Pilar Díaz, Ana Gabriela De La Quintana, Carla Antonella Forte, Laura Rosana Aballay
BACKGROUND/OBJECTIVES: In Argentina, obesity prevalence rose from 14.6% in 2005 to 20.8% in 2013. Although the number of studies on noncommunicable diseases and dietary patterns as a unique dietary exposure measure has increased, information on this topic remains scarce in developing countries. This is the first population-based study investigating the association between diet and obesity using a dietary pattern approach in Argentina. We aimed (a) to identify current dietary patterns of the population of Córdoba city, (b) to investigate its association with obesity prevalence, and (c) to identify and describe dietary patterns from the subgroup of people with obesity...
December 2016: Nutrition Research and Practice
https://www.readbyqxmd.com/read/27908687/fertility-response-evaluation-of-artificial-insemination-methods-in-sheep-with-fresh-and-frozen-thawed-semen
#18
Reza Masoudi, Ahmad Zare Shahneh, Armin Towhidi, Hamid Kohram, Abbas Akbarisharif, Mohsen Sharafi
The aim of this study was to evaluate the fertility response of artificial insemination (AI) methods with fresh and frozen sperm in sheep. In experiment 1, one hundred and fifty fat tailed Zandi ewes were assigned into 3 equal groups and inseminated with three AI methods consisting of vaginal, laparoscopic and trans-cervical AI with fresh semen. In experiment 2, a factorial study (3 AI methods × 2 extenders) was used to analyze the effects of three AI methods and two freezing extenders containing soybean lecithin (SL) or Egg yolk (EY) on reproductive performance of 300 fat tailed Zandi ewes...
November 28, 2016: Cryobiology
https://www.readbyqxmd.com/read/27908109/perturbation-of-hydration-layer-in-solvated-proteins-by-external-electric-and-electromagnetic-fields-insights-from-non-equilibrium-molecular-dynamics
#19
Prithwish K Nandi, Zdenek Futera, Niall J English
Given the fundamental role of water in governing the biochemistry of enzymes, and in regulating their wider biological activity (e.g., by local water concentration surrounding biomolecules), the influence of extraneous electric and electromagnetic (e/m) fields thereon is of central relevance to biophysics and, more widely, biology. With the increase in levels of local and atmospheric microwave-frequency radiation present in modern life, as well as other electric-field exposure, the impact upon hydration-water layers surrounding proteins, and biomolecules generally, becomes a particularly pertinent issue...
November 28, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/27906979/a-phosphorylcholine-containing-glycolipid-like-antigen-present-on-the-surface-of-infective-stage-larvae-of-ascaris-spp-is-a-major-antibody-target-in-infected-pigs-and-humans
#20
Johnny Vlaminck, Dries Masure, Tao Wang, Peter Nejsum, Cornelis H Hokke, Peter Geldhof
BACKGROUND: The pig parasite Ascaris suum plays and important role in veterinary medicine and represents a suitable model for A. lumbricoides, which infects over 800 million people. In pigs, continued exposure to Ascaris induces immunity at the level of the gut, protecting the host against migrating larvae. The objective of this study was to identify and characterize parasite antigens targeted by this local immune response that may be crucial for parasite invasion and establishment and to evaluate their protective and diagnostic potential...
December 2016: PLoS Neglected Tropical Diseases
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