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https://www.readbyqxmd.com/read/28545102/effect-of-dietary-restriction-and-subsequent-re-alimentation-on-the-transcriptional-profile-of-bovine-ruminal-epithelium
#1
Kate Keogh, Sinead M Waters, Paul Cormican, Alan K Kelly, Emma O'Shea, David A Kenny
Compensatory growth (CG) is utilised worldwide in beef production systems as a management approach to reduce feed costs. However the underlying biology regulating the expression of CG remains to be fully elucidated. The objective of this study was to examine the effect of dietary restriction and subsequent re-alimentation induced CG on the global gene expression profile of ruminal epithelial papillae. Holstein Friesian bulls (n = 60) were assigned to one of two groups: restricted feed allowance (RES; n = 30) for 125 days (Period 1) followed by ad libitum access to feed for 55 days (Period 2) or (ii) ad libitum access to feed throughout (ADLIB; n = 30)...
2017: PloS One
https://www.readbyqxmd.com/read/28543641/updated-species-sensitivity-distribution-evaluations-for-acute-and-chronic-lead-toxicity-to-saltwater-aquatic-life
#2
Brian G Church, Patrick A Van Sprang, M Jasim Chowdhury, David K DeForest
The United States Environmental Protection Agency's (USEPA) ambient water quality criteria (AWQC) for lead (Pb) in saltwater were developed in 1984. The acute and chronic criteria are 210 µg/L and 8.1 µg/L dissolved Pb, respectively. Because data were limited in 1984, the chronic criterion was derived using an acute-chronic ratio (ACR), but there are now sufficient toxicity data such that an ACR is no longer needed. Based on the data now available, the proposed updated acute and chronic saltwater Pb AWQC (following USEPA methods) are 100 and 10 µg/L, respectively...
May 19, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28542356/the-use-of-preferred-social-stimuli-as-rewards-for-rhesus-macaques-in-behavioural-neuroscience
#3
Helen Gray, Bradley Pearce, Alexander Thiele, Candy Rowe
Macaques are often motivated to perform in neuroscientific experiments by implementing fluid restriction protocols. Daily access to water is controlled and the monkeys are rewarded with droplets of fluid for performing correct trials in the laboratory. Although these protocols are widely used and highly effective, it is important from a 3Rs perspective to investigate refinements that may help to lessen the severity of the fluid restriction applied. We assessed the use of social stimuli (images of conspecifics) as rewards for four rhesus macaques performing simple cognitive tasks...
2017: PloS One
https://www.readbyqxmd.com/read/28542302/influence-of-catch-up-growth-on-spatial-learning-and-memory-in-a-mouse-model-of-intrauterine-growth-restriction
#4
Cristina Duran Fernandez-Feijoo, Cristina Carrasco Carrasco, Núria Villalmazo Francisco, Judit Cebrià Romero, Jose Ramon Fernández Lorenzo, J C Jiménez-Chillaron, Marta Camprubí Camprubí
BACKGROUND: Intrauterine growth restriction (IUGR) and rapid postnatal weight gain or catch up growth (CUG) increase the susceptibility to metabolic syndrome during adult life. Longitudinal studies have also revealed a high incidence of learning difficulties in children with IUGR. The aim of the present study was to investigate the effect of nutrition and CUG on learning memory in an IUGR animal model. We hypothesized that synaptic protein expression and transcription, an essential mechanism for memory consolidation, might be affected by intrauterine undernutrition...
2017: PloS One
https://www.readbyqxmd.com/read/28542291/the-first-darter-aves-anhingidae-fossils-from-india-late-pliocene
#5
Thomas Stidham, Rajeev Patnaik, Kewal Krishan, Bahadur Singh, Abhik Ghosh, Ankita Singla, Simran S Kotla
New fossils from the latest Pliocene portion of the Tatrot Formation exposed in the Siwalik Hills of northern India represent the first fossil record of a darter (Anhingidae) from India. The darter fossils possibly represent a new species, but the limited information on the fossil record of this group restricts their taxonomic allocation. The Pliocene darter has a deep pit on the distal face of metatarsal trochlea IV not reported in other anhingids, it has an open groove for the m. flexor perforatus et perforans digiti II tendon on the hypotarsus unlike New World anhingid taxa, and these darter specimens are the youngest of the handful of Neogene records of the group from Asia...
2017: PloS One
https://www.readbyqxmd.com/read/28541353/pendant-chain-engineering-to-fine-tune-the-nanomorphologies-and-solid-state-luminescence-of-naphthalimide-aieegens-application-to-phenolic-nitro-explosive-detection-in-water
#6
Niranjan Meher, Parameswar Krishnan Iyer
Strategically, a series of five angular "V" shaped naphthalimide AIEEgens with varying pendant chains (butyl, hexyl, octyl, cyclohexyl and methylcyclohexyl) have been synthesized to fine-tune their nanomorphological and photophysical properties. With similar aromatic cores and electronic states, unexpected tuning of the condensed state emission colors and nanomorphologies (reproducible on any kind of surface) of naphthalimides has been achieved for the first time simply by varying their side chains. Conclusive analysis by various spectroscopic techniques (SC-XRD, powder-XRD, DLS, FESEM) and DFT computational studies confirmed the full control of the pendant chain (in terms of bulkiness around the naphthalimide core, which restricts the ease of intermolecular π-π interactions) over the nanoaggregate morphology and solid state emissive properties of the AIEEgens; this can be rationalized to all aggregation-prone systems...
May 25, 2017: Nanoscale
https://www.readbyqxmd.com/read/28539090/development-and-application-of-the-compression-frictional-treatment-method-cft-for-sterilizing-and-valorising-organic-waste
#7
Allison Talley, Robert Heimann, Stergios Vakalis
Confined animal feeding operations are producing large amounts of organic waste with large fractions being mixtures of manure and sawdust. On one hand, the inhomogeneity of the material and the high water content restrict the optimal application of thermal treatment methods. On the other hand, the high concentration of bacteria in these mixed waste streams is issue of concern. This study introduces a novel process for treating manure & woody biomass mixtures and upgrading them into valuable products. It is defined as Compression Frictional Treatment and takes place continuously in a Rotary Compression Unit...
May 25, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28538658/seed-coating-increases-seed-moisture-uptake-and-restricts-embryonic-oxygen-availability-in-germinating-cereal-seeds
#8
Linda Gorim, Folkard Asch
Seed coating is a technology to improve germination and homogenize stand establishment. Although coating often results in lower germination rates, seeds that do germinate grow more vigorously and show strongly reduced respiratory losses during reserve mobilization. We hypothesize that the higher mobilization efficiency is due to a shift in the enzymatic cleavage of sucrose from invertase to sucrose synthase in the embryonic tissue caused by a reduced oxygen availability induced by oversaturation with water caused by the coating during early germination...
May 24, 2017: Biology
https://www.readbyqxmd.com/read/28537906/killing-effects-of-huaier-granule-combined-with-dc-cik-on-nude-mice-transplanted-with-colon-carcinoma-cell-line
#9
Wen-Wen Sun, Jin-Xia Dou, Lin Zhang, Li-Kui Qiao, Na Shen, Qiang Zhao, Wen-Yuan Gao
This study aims to compare the efficacy of different treatments for nude mice transplanted with HT-29 colon carcinoma cell line. BalB/C nude mice were transplanted with HT-29 colon carcinoma cell line and randomly divided into four groups, with 5 mice in each group: blank control group, DC-CIK group, Huaier Granule group, and Huaier Granule group combined with DC-CIK group (combined treatment group). For DC-CIK group and combined treatment group, 1×106 DC-CIK cells were injected via the tail vein 4 days after transplantation...
May 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28536565/piecewise-structural-equation-model-sem-disentangles-the-environmental-conditions-favoring-diatom-diazotroph-associations-ddas-in-the-western-tropical-north-atlantic-wtna
#10
Marcus Stenegren, Carlo Berg, Cory C Padilla, Stefan-Sebastian David, Joseph P Montoya, Patricia L Yager, Rachel A Foster
Diatom diazotroph associations (DDAs) are important components in the world's oceans, especially in the western tropical north Atlantic (WTNA), where blooms have a significant impact on carbon and nitrogen cycling. However, drivers of their abundances and distribution patterns remain unknown. Here, we examined abundance and distribution patterns for two DDA populations in relation to the Amazon River (AR) plume in the WTNA. Quantitative PCR assays, targeting two DDAs (het-1 and het-2) by their symbiont's nifH gene, served as input in a piecewise structural equation model (SEM)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28535031/tunichrome-inspired-gold-enrichment-dispersion-matrix-and-its-application-in-water-treatment-a-proof-of-concept-investigation
#11
Amarendra Dhar Dwivedi, Rega Permana, Jitendra Pal Singh, Hakwon Yoon, Keun Hwa Chae, Yoon-Seok Chang, Dong Soo Hwang
Tunicate, a filter-feeder in seawater, is able to accumulate high amount of metals using intracellular polymer matrices. The woven pyrogallol structures of tunichrome, a small peptide contained in tunicate's blood cells, is believed to be responsible for selective metal sequestration in tunicates from seawater. However, the intriguing tunichrome matrix is difficult to harvest from the tunicate nor to synthesize massively due to the extreme oxidation sensitivity of the pyrogallol moiety which limits the study scope...
May 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28532067/development-of-biocompatible-and-safe-polyethersulfone-hemodialysis-membrane-incorporated-with-functionalized-multi-walled-carbon-nanotubes
#12
Muhammad Nidzhom Zainol Abidin, Pei Sean Goh, Ahmad Fauzi Ismail, Mohd Hafiz Dzarfan Othman, Hasrinah Hasbullah, Noresah Said, Siti Hamimah Sheikh Abdul Kadir, Fatmawati Kamal, Mohd Sohaimi Abdullah, Be Cheer Ng
A novel approach in the design of a safe, high performance hemodialysis membrane is of great demand. Despite many advantages, the employment of prodigious nanomaterials in hemodialysis membrane is often restricted by their potential threat to health. Hence, this work focusses on designing a biocompatible polyethersulfone (PES) hemodialysis membrane embedded with poly (citric acid)-grafted-multi walled carbon nanotubes (PCA-g-MWCNTs). Two important elements which could assure the safety of the nanocomposite membrane, i...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28530586/characterization-of-textural-rheological-thermal-microstructural-and-water-mobility-in-wheat-flour-dough-and-bread-affected-by-trehalose
#13
Bo Peng, Youqian Li, Shiyong Ding, Jun Yang
The study aims to elucidate the effects of trehalose on the mechanical, thermal, and rheological properties of wheat flour dough and water distribution in bread. Texture profile analysis, DSC, farinograph, extensograph, and frequency sweep were applied in dough. The results from SEM revealed that the gluten film became less notable with the presence of trehalose. The kinetics of staling process, low-field (1)H NMR, and water-binding capacity were employed to characterize physicochemical properties of bread...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28529816/sclerostin-activity-plays-a-key-role-in-the-negative-effect-of-glucocorticoid-signaling-on-osteoblast-function-in-mice
#14
Eric E Beier, Tzong-Jen Sheu, Emily A Resseguie, Masahiko Takahata, Hani A Awad, Deborah A Cory-Slechta, J Edward Puzas
Stress during prenatal development is correlated with detrimental cognitive and behavioral outcomes in offspring. However, the long-term impact of prenatal stress (PS) and disrupted glucocorticoid signaling on bone mass and strength is not understood. In contrast, the detrimental effect of lead (Pb) on skeletal health is well documented. As stress and Pb act on common biological targets via glucocorticoid signaling pathways and co-occur in the environment, this study first sought to assess the combined effect of stress and Pb on bone quality in association with alterations in glucocorticoid signaling...
2017: Bone Research
https://www.readbyqxmd.com/read/28527737/the-rain-watered-lawn-informing-effective-lawn-watering-behavior
#15
Felicia D Survis, Tara L Root
Water restrictions are a common municipal water conservation strategy to manage outdoor water demand, which generally represents more than 50% of total urban-suburban water use. Although water restrictions are designed to limit the frequency of lawn watering, they do not always result in actual water savings. The project described here tested a weather-based add-on water conservation strategy in a South Florida suburban community to determine if it promoted more effective lawn watering behavior than mandatory water restrictions alone...
May 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28515880/resistance-and-resilience-of-root-fungal-communities-to-water-limitation-in-a-temperate-agroecosystem
#16
Jessie R Furze, Adam R Martin, Joshua Nasielski, Naresh V Thevathasan, Andrew M Gordon, Marney E Isaac
Understanding crop resilience to environmental stress is critical in predicting the consequences of global climate change for agricultural systems worldwide, but to date studies addressing crop resiliency have focused primarily on plant physiological and molecular responses. Arbuscular mycorrhizal fungi (AMF) form mutualisms with many crop species, and these relationships are key in mitigating the effects of abiotic stress in many agricultural systems. However, to date there is little research examining whether (1) fungal community structure in agroecosystems is resistant to changing environmental conditions, specifically water limitation and (2) resilience of fungal community structure is moderated by agricultural management systems, namely the integration of trees into cropping systems...
May 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28512379/evaluation-of-pochonia-chlamydosporia-and-purpureocillium-lilacinum-for-suppression-of-meloidogyne-enterolobii-on-tomato-and-banana
#17
Silas D Silva, Regina M D G Carneiro, Marcos Faria, Daniela A Souza, Rose G Monnerat, Rogerio B Lopes
Meloidogyne enterolobii is one of the most important root-knot nematode in tropical regions, due to its ability to overcome resistance mechanisms of a number of host plants. The lack of new and safe active ingredients against this nematode has restricted control alternatives for growers. Egg-parasitic fungi have been considered as potential candidates for the development of bionematicides. In tissue culture plates, Pochonia chlamydosporia (var. catenulata and chlamydosporia) and Purpureocillium lilacinum strains were screened for their ability to infect eggs of the root-knot nematode M...
March 2017: Journal of Nematology
https://www.readbyqxmd.com/read/28512346/cryptic-diversity-in-the-japanese-mantis-shrimp-oratosquilla-oratoria-crustacea-squillidae-allopatric-diversification-secondary-contact-and-hybridization
#18
Jiao Cheng, Zhong-Li Sha
Mounting evidence of cryptic species in the marine realm emphasizes the necessity to thoroughly revise our current perceptions of marine biodiversity and species distributions. Here, we used mitochondrial cytochrome oxidase subunit I (mtDNA COI) and nuclear ribosomal internal transcribed spacer (nrDNA ITS) to investigate cryptic diversity and potential hybridization in the Japanese mantis shrimp Oratosquilla oratoria in the Northwestern (NW) Pacific. Both mitochondrial and nuclear gene genealogies revealed two cryptic species in this morphotaxon, which was further confirmed by extensive population-level analyses...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28511731/dietary-nitrate-and-blood-pressure-evolution-of-a-new-nutrient
#19
Ann Ashworth, Raul Bescos
Dietary nitrate is mainly obtained from vegetables, especially green leafy vegetables and beetroot. As a result of early research, dietary nitrate is currently viewed as a contaminant linked to increased risks of stomach cancer and methaemoglobinaemia. Consequently, nitrate levels are restricted in certain vegetables and in water supplies to ensure exposure levels remain below an acceptable daily intake of 3·7 mg/kg per d. The average nitrate intake in the UK is approximately 70 mg/d, although some population groups, such as vegetarians, may consume three times that amount...
May 17, 2017: Nutrition Research Reviews
https://www.readbyqxmd.com/read/28510257/strategy-for-selection-of-soybean-genotypes-tolerant-to-drought-during-germination
#20
S A G Dantas, F C S Silva, L J Silva, F L Silva
Water deficit is the main reason for instability in the context of soybean culture. The development of strategies for the selection of more tolerant genotypes is necessary. These strategies include the use of polyethylene glycol 6000 solutions (PEG-6000) for conducting the germination test under conditions of water restriction. Thus, the objective of this study was to determine the osmotic potential and the main characteristics that promote the discrimination of soybean genotypes with regard to water stress tolerance during germination and the vigor test...
May 10, 2017: Genetics and Molecular Research: GMR
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