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https://www.readbyqxmd.com/read/28426412/fatal-aelurostrongylosis-in-a-kitten-in-serbia
#1
Pavle Gavrilović, Milijan Jovanović, Aleksandra Gavrilović, Slađan Nešić
This paper describes a case of aelurostrongylosis in a four-month old female domestic cat (Felis catus) from South Banat, Serbia. The kitten that had died suddenly without signs of illness was autopsied in the Veterinary Specialised Institute "Pančevo". The macroscopic finding was typical of granulomatous pneumonia and subsequently, histopathology revealed verminous pneumonia. Based on the parasite morphology, it was confirmed that the lung lesions were caused by Aelurostrongylus abstrusus. The present finding contributes to the knowledge of the prevalence of this underestimated parasite in the Balkan Peninsula...
June 1, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28419347/evolutionary-trade-offs-between-drought-resistance-mechanisms-across-a-precipitation-gradient-in-a-seasonally-dry-tropical-oak-quercus-oleoides
#2
Jose A Ramírez-Valiente, Jeannine Cavender-Bares
In seasonally dry tropical forest regions, drought avoidance during the dry season coupled with high assimilation rates in the wet season is hypothesized to be an advantageous strategy for forest trees in regions with severe and long dry seasons. In contrast, where dry seasons are milder, drought tolerance coupled with a conservative resource-use strategy is expected to maximize carbon assimilation throughout the year. Tests of this hypothesis, particularly at the intraspecific level, have been seldom conducted...
April 13, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28415417/porous-45s5-bioglass%C3%A2-based-scaffolds-using-stereolithography-effect-of-partial-pre-sintering-on-structural-and-mechanical-properties-of-scaffolds
#3
Boonlom Thavornyutikarn, Passakorn Tesavibul, Kriskrai Sitthiseripratip, Nattapon Chatarapanich, Bryce Feltis, Paul F A Wright, Terence W Turney
Scaffolds made from 45S5 Bioglass® ceramic (BG) show clinical potential in bone regeneration due to their excellent bioactivity and ability to bond to natural bone tissue. However, porous BG scaffolds are limited by their mechanical integrity and by the substantial volume contractions occurring upon sintering. This study examines stereolithographic (SLA) methods to fabricate mechanically robust and porous Bioglass®-based ceramic scaffolds, with regular and interconnected pore networks and using various computer-aided design architectures...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28406036/participatory-assessment-of-factors-influencing-nutrition-and-livelihoods-in-rural-ethiopia-implications-for-measuring-impacts-of-multisector-nutrition-programs
#4
H A Busse, W Jogo, M Fofanah, H Tesfay, M Hadush, E Kiflom, S Schulz
Agricultural interventions more effectively improve nutrition when they are adapted to local contexts and engage multiple sectors. However, evidence is limited for how to design and measure the impacts of such interventions. We piloted a participatory methodology to collect community feedback to inform the design and selection of measures for a multisector nutrition intervention in Ethiopia. Study participants were purposively recruited from 6 rural districts in Tigray and the Southern Nations, Nationalities, and Peoples' regions...
January 1, 2017: Food and Nutrition Bulletin
https://www.readbyqxmd.com/read/28400215/levamisole-enhances-the-innate-immune-response-and-prevents-increased-cortisol-levels-in-stressed-pacu-piaractus-mesopotamicus
#5
Eduardo Pahor-Filho, Adriana Soliris Corredor Castillo, Nycolas Levy Pereira, Fabiana Pilarski, Elisabeth Criscuolo Urbinati
We analyzed the effects of levamisole on stress and the innate immune responses of pacu (Piaractus mesopotamicus). A total of 300 fish (180 ± 1.27 g) were fed a diet containing levamisole hydrochloride (LHC) for 15 days, then distributed into the following groups: T0 (control group); T1 (100), T2 (150), T3 (300) and T4 (500) mg kg(-1) LHC (15 fish per group and four replicates per treatment). After this, fish (n = 8 per treatment) were exposed to air for three minutes to simulate stress conditions and were then challenged with the bacterium Aeromonas hydrophila to stimulate the immune system...
April 8, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28400159/nanotubular-topography-enhances-the-bioactivity-of-titanium-implants
#6
Jingyan Huang, Xinchun Zhang, Wangxiang Yan, Zhipei Chen, Xintao Shuai, Anxun Wang, Yan Wang
Surface modification on titanium implants plays an important role in promoting mesenchymal stem cell (MSC) response to enhance osseointegration persistently. In this study, nano-scale TiO2 nanotube topography (TNT), micro-scale sand blasted-acid etched topography (SLA), and hybrid sand blasted-acid etched/nanotube topography (SLA/TNT) were fabricated on the surfaces of titanium implants. Although the initial cell adherence at 60 min among TNT, SLA and TNT/SLA was not different, SLA and SLA/TNT presented to be rougher and suppressed the proliferation of MSC...
April 8, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28395176/the-ketogenic-diet-metabolite-beta-hydroxybutyrate-%C3%AE-hb-reduces-incidence-of-seizure-like-activity-sla-in-a-katp-and-gabab-dependent-manner-in-a-whole-animal-drosophila-melanogaster-model
#7
Jinglu Li, Emma I O'Leary, Geoffrey R Tanner
The high-fat, low-carbohydrate ketogenic diet (KD) is an effective clinical treatment for epilepsy in juveniles, especially for drug-resistant seizures. The KD results in elevated production of ketone bodies (KB's), such as beta-hydroxybutyrate (β-HB), which are thought to have anticonvulsant properties; however, their exact mechanism of action is unknown. In vitro, KB effects on reducing neuronal firing rates are mediated in part by Katp channel activity and GABAb signaling. In order to study metabolic and pharmacological effects in a whole-animal model, we used the eas "bang-sensitive" (BS) mutant strain of Drosophila, which exhibits seizure-like activity (SLA) upon mechanical stimulation...
April 5, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28388815/anticancer-and-antimicrobial-activity-of-dehydrozingerone-based-cyclopropyl-derivatives
#8
Adrijana Z Burmudžija, Jovana M Muškinja, Marijana M Kosanić, Branislav R Ranković, Slađana B Novaković, Snežana B Đorđević, Tatjana P Stanojković, Dejan D Baskić, Zoran R Ratković
A small series of 1-acetyl-2-(4-alkoxy-3-methoxyphenyl)cyclopropanes was prepared, starting from dehydrozingerone [4-(4-hydroxy-3-methoxyphenyl)-3-buten-2-one] and its O-alkyl derivatives. Their microbiological activities toward some strains of bacteria and fungi were tested, as well as their in vitro cytotoxic activity against some cancer cell lines (HeLa, LS174 and A549). All synthesized compounds showed significant antimicrobial activity and expressed cytotoxic activity against tested carcinoma cell lines, but they showed no significant influence on normal cell line (MRC5)...
April 7, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28386197/a-resource-sharing-model-based-on-a-repeated-game-in-fog-computing
#9
Yan Sun, Nan Zhang
With the rapid development of cloud computing techniques, the number of users is undergoing exponential growth. It is difficult for traditional data centers to perform many tasks in real time because of the limited bandwidth of resources. The concept of fog computing is proposed to support traditional cloud computing and to provide cloud services. In fog computing, the resource pool is composed of sporadic distributed resources that are more flexible and movable than a traditional data center. In this paper, we propose a fog computing structure and present a crowd-funding algorithm to integrate spare resources in the network...
March 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28372067/design-framework-for-spherical-microphone-and-loudspeaker-arrays-in-a-multiple-input-multiple-output-system
#10
Hai Morgenstern, Boaz Rafaely, Markus Noisternig
Spherical microphone arrays (SMAs) and spherical loudspeaker arrays (SLAs) facilitate the study of room acoustics due to the three-dimensional analysis they provide. More recently, systems that combine both arrays, referred to as multiple-input multiple-output (MIMO) systems, have been proposed due to the added spatial diversity they facilitate. The literature provides frameworks for designing SMAs and SLAs separately, including error analysis from which the operating frequency range (OFR) of an array is defined...
March 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28369998/the-importance-of-hydraulic-architecture-to-the-distribution-patterns-of-trees-in-a-central-amazonian-forest
#11
Luiza H M Cosme, Juliana Schietti, Flávia R C Costa, Rafael S Oliveira
Species distributions and assemblage composition may be the result of trait selection through environmental filters. Here, we ask whether filtering of species at the local scale could be attributed to their hydraulic architectural traits, revealing the basis of hydrological microhabitat partitioning in a Central Amazonian forest. We analyzed the hydraulic characteristics at tissue (anatomical traits, wood specific gravity (WSG)), organ (leaf area, specific leaf area (SLA), leaf area : sapwood area ratio) and whole-plant (height) levels for 28 pairs of congeneric species from 14 genera restricted to either valleys or plateaus of a terra-firme forest in Central Amazonia...
March 29, 2017: New Phytologist
https://www.readbyqxmd.com/read/28366784/enhanced-osteogenic-differentiation-of-rat-bone-marrow-mesenchymal-stem-cells-on-titanium-substrates-by-inhibiting-notch3
#12
Huiming Wang, Zhiwei Jiang, Jing Zhang, Zhijian Xie, Ying Wang, Guoli Yang
OBJECTIVE: The role of the Notch pathway has already been identified as a crucial regulator of bone development. However, the Notch signaling pathway has gone largely unexplored during osseointegration. This study aims to investigate the role of Notch signaling on osteogenic differentiation of rat derived bone marrow mesenchymal stem cells (BMSCs) on sandblasted, large-grit, acid-etched (SLA) treated Ti disks. METHODS: The involved target genes in Notch pathways were identified by in vitro microarray and bioinformatics analyses with or without osteogenic induction...
March 19, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28363784/the-effect-of-cannabinoid-receptor-1-blockade-on-hepatic-free-fatty-acid-profile-in-mice-with-nonalcoholic-fatty-liver-disease
#13
Bojan Jorgačević, Danijela Vučević, Ivana Đuričić, Slađana Šobajić, Dušan Mladenović, Milena Vesković, Rada Ješić Vukićević, Tatjana Radosavljević
We used rimonabant to investigate the role of CB1 receptor on hepatic FFAs profile during NAFLD. Male mice C57BL/6 were divided into: control group fed with control diet 20 weeks (C; n=6); group fed with HFD 20 weeks (HF; n=6); group fed with control diet and treated with rimonabant after 18 weeks (R; n=9); group fed with HFD and treated with rimonabant after 18 weeks (HFR; n=10). Rimonabant (10mg/kg) was administered daily to HFR and R group by oral gavage. Rimonabant decreased liver palmitic acid proportion in HFR group compared to HF group (p<0...
March 29, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28361165/accuracy-of-stereolithographically-printed-digital-models-compared-to-plaster-models
#14
Leonardo Tavares Camardella, Oswaldo V Vilella, Marleen M van Hezel, Karel H Breuning
OBJECTIVE: This study compared the accuracy of plaster models from alginate impressions and printed models from intraoral scanning. MATERIALS AND METHODS: A total of 28 volunteers were selected and alginate impressions and intraoral scans were used to make plaster models and digital models of their dentition, respectively. The digital models were printed using a stereolithographic (SLA) 3D printer with a horseshoe-shaped design. Two calibrated examiners measured distances on the plaster and printed models with a digital caliper...
March 30, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28360911/swine-leukocyte-antigen-diversity-in-canadian-specific-pathogen-free-yorkshire-and-landrace-pigs
#15
Caixia Gao, Jinqiang Quan, Xinjie Jiang, Changwen Li, Xiaoye Lu, Hongyan Chen
The highly polymorphic swine major histocompatibility complex (MHC), termed swine leukocyte antigen (SLA), is associated with different levels of immunologic responses to infectious diseases, vaccines, and transplantation. Pig breeds with known SLA haplotypes are important genetic resources for biomedical research. Canadian Yorkshire and Landrace pigs represent the current specific pathogen-free (SPF) breeding stock maintained in the isolation environment at the Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28356528/interactions-between-the-dengue-virus-polymerase-ns5-and-stem-loop-a-sla
#16
Paul J Bujalowski, Wlodzimierz Bujalowski, Kyung H Choi
The process of RNA replication by dengue virus is still not completely understood despite the significant progress made in the last few years. The stem loop A (SLA), a part of viral 5' untranslated region (UTR), is critical for initiation of dengue virus replication, but quantitative analysis of the interactions between dengue virus polymerase NS5 and SLA in solution has not been performed. Here, we examine how solution conditions affect the size and shape of SLA and the formation of the NS5-SLA complex. We show that dengue virus NS5 binds SLA with 1:1 stoichiometry and that the association reaction is primarily entropy-driven...
March 29, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28352278/linking-changes-to-intraspecific-trait-diversity-to-community-functional-diversity-and-biomass-in-response-to-snow-and-nitrogen-addition-within-an-inner-mongolian-grassland
#17
Wei Mao, Andrew J Felton, Tonghui Zhang
In recent years, both the intraspecific and interspecific functional diversity (FD) of plant communities have been studied with new approaches to improve an understanding about the mechanisms underlying plant species coexistence. Yet, little is known about how global change drivers will impact intraspecific FD and trait overlap among species, and in particular how this may scale to impacts on community level FD and ecosystem functioning. To address this uncertainty, we assessed the direct and indirect responses of specific leaf area (SLA) among both dominant annual and subordinate perennial species to the independent and interactive effects of nitrogen and snow addition within the Inner Mongnolian steppe...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28352274/spatial-variation-of-leaf-optical-properties-in-a-boreal-forest-is-influenced-by-species-and-light-environment
#18
Jon Atherton, Beñat Olascoaga, Luis Alonso, Albert Porcar-Castell
Leaf Optical Properties (LOPs) convey information relating to temporally dynamic photosynthetic activity and biochemistry. LOPs are also sensitive to variability in anatomically related traits such as Specific Leaf Area (SLA), via the interplay of intra-leaf light scattering and absorption processes. Therefore, variability in such traits, which may demonstrate little plasticity over time, potentially disrupts remote sensing estimates of photosynthesis or biochemistry across space. To help to disentangle the various factors that contribute to the variability of LOPs, we defined baseline variation as variation in LOPs that occurs across space, but not time...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28351289/bmp2-alters-osteogenesis-and-anti-inflammatory-profiles-of-mesenchymal-stem-cells-induced-by-microtextured-titanium-in-vitro
#19
Sharon L Hyzy, Rene Olivares-Navarrete, Sara Ortman, Barbara Boyan, Zvi Schwartz
OBJECTIVES: Microtextured titanium (Ti) induces osteoblast differentiation of mesenchymal stem cells (MSCs) in the absence of exogenous osteogenic factors; and high-energy surface modifications speed healing of microrough Ti implants. Bone morphogenetic protein-2 (BMP2) is used clinically to improve peri-implant bone formation and osseointegration but can cause inflammation and bone-related complications. Here, we determined whether BMP2 alters human MSC differentiation, apoptosis, and inflammatory factor production when grown on Ti implants with different surface properties...
March 29, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28343139/oxytocin-in-corticosterone-induced-chronic-stress-model-focus-on-adrenal-gland-function
#20
Dušanka Stanić, Bosiljka Plećaš-Solarović, Duško Mirković, Predrag Jovanović, Slađana Dronjak, Bojan Marković, Tea Đorđević, Svetlana Ignjatović, Vesna Pešić
Chronic stress conditions can lead to considerable and extensible changes in physiological and psychological performances, and in emergence of risk for various somatic diseases. On the other hand, the neuropeptide oxytocin is reported to increase the resistance of the organism to stress and modulate activity of autonomic nervous system. Chronic corticosterone administration is used as a rat model for a state observed in terms of chronic stress exposure, when negative feedback mechanism of hypothalamus-pituitary-adrenal axis activity is disrupted...
March 10, 2017: Psychoneuroendocrinology
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