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https://www.readbyqxmd.com/read/28649322/similarity-of-plant-functional-traits-and-aggregation-pattern-in-a-subtropical-forest
#1
Bo Zhang, Xiaozhen Lu, Jiang Jiang, Donald L DeAngelis, Zhiyuan Fu, Jinchi Zhang
The distribution of species and communities in relation to environmental heterogeneity is a central focus in ecology. Co-occurrence of species with similar functional traits is an indication that communities are determined in part by environmental filters. However, few studies have been designed to test how functional traits are selectively filtered by environmental conditions at local scales. Exploring the relationship between soil characteristics and plant traits is a step toward understanding the filtering hypothesis in determining plant distribution at local scale...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28642625/testing-the-environmental-filtering-concept-in-global-drylands
#2
Yoann Le Bagousse-Pinguet, Nicolas Gross, Fernando T Maestre, Vincent Maire, Francesco de Bello, Carlos Roberto Fonseca, Jens Kattge, Enrique Valencia, Jan Leps, Pierre Liancourt
1. The environmental filtering hypothesis predicts that the abiotic environment selects species with similar trait values within communities. Testing this hypothesis along multiple - and interacting - gradients of climate and soil variables constitutes a great opportunity to better understand and predict the responses of plant communities to ongoing environmental changes. 2. Based on two key plant traits, maximum plant height and specific leaf area (SLA), we assessed the filtering effects of climate (mean annual temperature and precipitation, precipitation seasonality), soil characteristics (soil pH, sand content and total phosphorus) and all potential interactions on the functional structure and diversity of 124 dryland communities spread over the globe...
July 2017: Journal of Ecology
https://www.readbyqxmd.com/read/28628756/atypical-sympathomimetic-drug-lerimazoline-mediates-contractile-effects-in-rat-aorta-predominantly-by-5-ht2a-receptors
#3
Eldina Rizvić, Goran Janković, Slađana Kostić-Rajačić, Miroslav M Savić
Lerimazoline is a sympathomimetic drug that belongs to the imidazoline class of compounds, and is used as a nasal decongestant. Studies on lerimazoline are rare, and its pharmacological profile is not completely understood. Here, we analyzed the affinity of lerimazoline for dopamine receptor D2, serotonin 5-HT1A and 5-HT2A receptors and α1-adrenoceptor, and investigated lerimazoline contractile effects in isolated rat thoracic aorta. We also determined the effect of several antagonists on the contractile response to lerimazoline, including prazosin (α1-adrenoceptor antagonist), RX 821002 and rauwolscine (α2-adrenoceptor antagonists), JP 1302 (α2C-adrenoceptor antagonist), methiothepin (non-selective 5-HT receptor antagonist), SB 224289 (5-HT1B receptor antagonist), BRL 15572 (5-HT1D receptor antagonist), and ketanserin (5-HT2A receptor antagonist)...
June 19, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28626970/surgical-treatment-of-peri-implantitis-intrabony-lesions-by-means-of-deproteinized-bovine-bone-mineral-with-10-collagen-7-year-results
#4
Mario Roccuzzo, Dario Pittoni, Andrea Roccuzzo, Lorena Charrier, Paola Dalmasso
OBJECTIVES: The aim of this study was to evaluate the long-term results of the surgical treatment of single peri-implantitis intrabony defects, by means of deproteinized bovine bone mineral with 10% collagen (DBBMC). MATERIAL AND METHODS: The original population consisted of 26 patients with one crater-like defect, around either sandblasted and acid-etched (SLA) or titanium plasma-sprayed (TPS) dental implants, with a probing depth (PD) ≥6 mm and no implant mobility (Roccuzzo et al...
June 18, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28621401/encapsulation-of-sour-cherry-pomace-extract-by-freeze-drying-characterization-and-storage-stability
#5
Vesna Šaponjac, Gordana Ćetković, Jasna Čanadanović-Brunet, Sonja Đilas, Biljana Pajin, Jovana Petrović, Stajčić Slađana, Jelena Vulić
In this study sour cherry pomace was extracted with food-grade solvent (50% ethanol), concentrated and stabilized in whey and soy proteins by encapsulation. Soy proteins exhibited higher encapsulation efficiency (94.90%), but not significantly (p < 0.05), from whey (90.10%). Storage properties of whey (WP) and soy protein (SP) encapsulates in terms of total polyphenols, anthocyanins and antioxidant activity were tested for 6 weeks. At the end of storage period the retention of polyphenols in SP and WP was similar (67...
June 2017: Acta Chimica Slovenica
https://www.readbyqxmd.com/read/28620584/ifn-%C3%AE-il-2-ip-10-and-mig-as-biomarkers-of-exposure-to-leishmania-spp-and-of-cure-in-human-visceral-leishmaniasis
#6
Ana V Ibarra-Meneses, Prakash Ghosh, Faria Hossain, Rajashree Chowdhury, Dinesh Mondal, Jorge Alvar, Javier Moreno, Eugenia Carrillo
New biomarkers are needed for monitoring the effectiveness of treatment for visceral leishmaniasis (VL). They might also improve the detection of the asymptomatic population in Leishmania-endemic areas. This paper examines the IL-2, IFN-γ, IFN-γ-induced protein 10 (IP-10), and monokine-induced-by-IFN-γ (MIG) levels in whole blood-stimulated in vitro with soluble Leishmania antigen (SLA)-taken from asymptomatic individuals and patients treated for VL living in a post-outbreak (Leishmania infantum) area in Spain, and in an endemic (Leishmania donovani) area of Bangladesh...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28616170/variation-in-species-level-plant-functional-traits-over-wetland-indicator-status-categories
#7
Miles E McCoy-Sulentic, Thomas E Kolb, David M Merritt, Emily C Palmquist, Barbara E Ralston, Daniel A Sarr
Wetland indicator status (WIS) describes the habitat affinity of plant species and is used in wetland delineations and resource inventories. Understanding how species-level functional traits vary across WIS categories may improve designations, elucidate mechanisms of adaptation, and explain habitat optima and niche. We investigated differences in species-level traits of riparian flora across WIS categories, extending their application to indicate hydrologic habitat. We measured or compiled data on specific leaf area (SLA), stem specific gravity (SSG), seed mass, and mature height of 110 plant species that occur along the Colorado River in Grand Canyon, Arizona...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28611807/size-and-reproductive-traits-rather-than-leaf-economic-traits-explain-plant-community-composition-in-species-rich-annual-vegetation-along-a-gradient-of-land-use-intensity
#8
Inga Dirks, Rita Dumbur, Patrick Lienin, Michael Kleyer, José M Grünzweig
Agricultural land use imposes a major disturbance on ecosystems worldwide, thus greatly modifying the taxonomic and functional composition of plant communities. However, mechanisms of community assembly, as assessed by plant functional traits, are not well known for dryland ecosystems under agricultural disturbance. Here we investigated trait responses to disturbance intensity and availability of resources to identify the main drivers of changes in composition of semiarid communities under diverging land use intensities...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28611072/decoupled-leaf-and-root-carbon-economics-is-a-key-component-in-the-ecological-diversity-and-evolutionary-divergence-of-deciduous-and-evergreen-lineages-of-genus-rhododendron
#9
Juliana S Medeiros, Jean H Burns, Jaynell Nicholson, Louisa Rogers, Oscar Valverde-Barrantes
PREMISE: We explored trait-trait and trait-climate relationships for 27 Rhododendron species while accounting for phylogenetic relationships and within-species variation to investigate whether leaf and root traits are coordinated across environments and over evolutionary time, as part of a whole-plant economics spectrum. METHODS: We examined specific leaf area (SLA) and four root traits: specific root length (SRL), specific root tip abundance (SRTA), first order diameter, and link average length, for plants growing in a cold, seasonal climate (Kirtland, Ohio) and a warmer, less seasonal climate (Federal Way, Washington) in the United States...
June 13, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28602909/influence-of-dietary-cadmium-exposure-on-fitness-traits-and-its-accumulation-with-an-overview-on-trace-elements-in-lymantria-dispar-larvae
#10
Milena Vlahović, Dragana Matić, Jelena Mutić, Jelena Trifković, Slađana Đurđić, Vesna Perić Mataruga
Bioaccumulation and excretion of heavy metals in insects is only partially clarified. We have investigated cadmium accumulation in the feces, head and integument of Lymantria dispar (Lepidoptera: Lymantiidae) larvae exposed to chronic dietary intake of cadmium. The aim of the experiment was to establish modalities of metal accumulation, primarily cadmium, as well as changes in fitness traits in two insect populations receiving 50 or 100μg Cd/g dry food. The egg-masses originated from two localities: a protected nature reserve (unpolluted population) and an area near a busy highway (polluted population) in Serbia...
June 8, 2017: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/28602279/an-elisa-immunoassay-employing-a-conserved-leishmania-hypothetical-protein-for-the-serodiagnosis-of-visceral-and-tegumentary-leishmaniasis-in-dogs-and-humans
#11
Ana Maria R S Carvalho, Lourena E Costa, Beatriz C S Salles, Thaís T O Santos, Fernanda F Ramos, Mariana P Lima, Miguel A Chávez-Fumagalli, Bruna T Silvestre, Áquila S B Portela, Bruno M Roatt, Julia A G Silveira, Denise U Gonçalves, Danielle F Magalhães-Soares, Mariana C Duarte, Daniel Menezes-Souza, Eduardo A F Coelho
In the present study, a conserved Leishmania hypothetical protein, namely LiHypA, was evaluated for the serodiagnosis of visceral and tegumentary leishmaniasis in dogs and humans. This protein showed a high amino acid sequence homology between viscerotropic and cutaneotropic Leishmania species. An enzyme-linked immunosorbent assay (ELISA) was developed using the recombinant antigen (rLiHypA), in addition to the A2 protein and two parasite antigenic preparations, which were used as controls. Regarding human diagnosis, results showed that rLiHypA was more sensitive and specific than ELISA-L...
June 8, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28597283/transumbilical-laparoscopic-assisted-appendectomy-in-children-is-it-worth-it
#12
Sara Hernandez-Martin, Lidia Ayuso, Ada Yessenia Molina, Javier Pison, Miguel Angel Martinez-Bermejo, Alberto Perez-Martinez
INTRODUCTION: Transumbilical laparoscopic-assisted appendectomy (TULAA) is the technique of choice for all types of appendicitis in our Department. It combines the advantages of laparoscopy (global vision and minimally invasion) and open surgery (lower cost). The objective was to assess the results of our TULAA series and compare them to the results of standard laparoscopic appendectomies (SLA) performed during the same period. METHODS: Retrospective review of total appendectomies performed since TULAA introduction (September 2003 to December 2015) with statistic analysis of the results...
June 8, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28589207/prediction-and-in-vitro-verification-of-potential-ctl-epitopes-conserved-among-prrsv-2-strains
#13
Simon Welner, Morten Nielsen, Michael Rasmussen, Søren Buus, Gregers Jungersen, Lars Erik Larsen
Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) is the causative agent of one of the most important porcine diseases with a high impact on animal health, welfare, and production economy. PRRSV exhibits a multitude of immunoevasive strategies that, in combination with a very high mutation rate, has hampered the development of safe and broadly protective vaccines. Aiming at a vaccine inducing an effective cytotoxic T cell response, a bioinformatics approach was taken to identify conserved PRRSV-derived peptides predicted to react broadly with common swine leukocyte antigen (SLA) class I alleles...
June 7, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28587722/comparative-evaluation-of-topographical-data-of-dental-implant-surfaces-applying-optical-interferometry-and-scanning-electron-microscopy
#14
N Kournetas, S Spintzyk, E Schweizer, T Sawada, F Said, P Schmid, J Geis-Gerstorfer, G Eliades, F Rupp
OBJECTIVE: Comparability of topographical data of implant surfaces in literature is low and their clinical relevance often equivocal. The aim of this study was to investigate the ability of scanning electron microscopy and optical interferometry to assess statistically similar 3-dimensional roughness parameter results and to evaluate these data based on predefined criteria regarded relevant for a favorable biological response. METHODS: Four different commercial dental screw-type implants (NanoTite Certain Prevail, TiUnite Brånemark Mk III, XiVE S Plus and SLA Standard Plus) were analyzed by stereo scanning electron microscopy and white light interferometry...
June 3, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28578143/effect-of-seasonality-and-cr-vi-on-starch-sucrose-partitioning-and-related-enzymes-in-floating-leaves-of-salvinia-minima
#15
Mariana Rosa, Carolina Prado, Silvana Chocobar-Ponce, Eduardo Pagano, Fernando Prado
Effects of seasonality and increasing Cr(VI) concentrations on leaf starch-sucrose partitioning, sucrose- and starch-related enzyme activities, and carbon allocation toward leaf development were analyzed in fronds (floating leaves) of the floating fern Salvinia minima. Carbohydrates and enzyme activities of Cr-exposed fronds showed different patterns in winter and summer. Total soluble sugars, starch, glucose and fructose increased in winter fronds, while sucrose was higher in summer ones. Starch and soluble carbohydrates, except glucose, increased under increasing Cr(VI) concentrations in winter fronds, while in summer ones only sucrose increased under Cr(VI) treatment...
May 26, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28575956/cell-responses-to-titanium-treated-by-a-sandblast-free-method-for-implant-applications
#16
Jie Zhang, Youneng Xie, Jun Zuo, Jiaxin Li, Qiuping Wei, Zhiming Yu, Zhangui Tang
Sandblast and acid-etching (SLA) is the most prevalent treatment to titanium implants, while residual sand particles are inevitably introduced on SLA titanium surfaces. NH4OH and H2O2 mixture was used to etch titanium plates (E) and titanium bars (EB), aiming at substituting sandblast procedure. To study the effects of different scale rough structures on cell response of Human osteoblast-like cells (MG63), traditional H2SO4 and HCl mixture was also used to further etch the titanium plates above (DE). Holes of 10-20μm were obtained on E and DE surfaces, which are very close to the size of osteoblasts...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28573965/characterization-of-croatian-rape-brassica-sp-honey-by-pollen-spectrum-physicochemical-characteristics-and-multielement-analysis-by-icp-oes
#17
Blanka Bilić Rajs, Ivana Flanjak, Jelena Mutić, Vesna Vukojević, Slađana Đurđić, Ljiljana Primorac
Rape (Brassica sp.) unifloral honey from Croatia was characterized by certain physicochemical parameters, micro- and macroelement content, and pollen spectrum, as determined in 21 honey samples. The Brassica sp. pollen type was predominant in the analyzed samples and ranged between 60 and 98%, with Trifolium spp., Robinia pseudoacacia, Rosaceae, Helianthus annuus, Salix spp., and Taraxacum officinale as the main accompanying pollen types. The electrical conductivity mean value was 0.22 ± 0.05 mS/cm and the glucose/fructose ratio mean value was 1...
June 1, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28566669/effect-of-enamel-matrix-derivative-on-the-angiogenic-behaviors-of-human-umbilical-vein-endothelial-cells-on-different-titanium-surfaces
#18
Bin Shi, Oleh Andrukhov, Burcu Özdemir, Hassan Ali Shokoohi Tabrizi, Michel Dard, Xiaohui Rausch-Fan
Angiogenesis play a crucial role in the regeneration of hard and soft tissue around dental titanium (Ti) implant. Enamel matrix derivative (EMD) promotes tissue regeneration and stimulates angiogenesis but its effect on the angiogenesis on Ti surfaces was never investigated. The effect of EMD on the angiogenic activity of endothelial cells cultured on pre-treated smooth Ti (PT), acidetched (A), coarse-grit blasted and acid-etched (SLA) surfaces and tissue culture plastic (TCP) in the presence or absence of EMD was investigated...
May 30, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28555545/identification-of-cross-reacting-t-cell-epitopes-in-structural-and-non-structural-proteins-of-swine-and-pandemic-h1n1-influenza-a-virus-strains-in-pigs
#19
Massimiliano Baratelli, Lasse Eggers Pedersen, Ramona Trebbien, Lars Erik Larsen, Gregers Jungersen, Esther Blanco, Jens Nielsen, Maria Montoya
Heterologous protection against swine influenza viruses (SwIVs) of different lineages is an important concern for the pig industry. Cross-protection between 'avian-like' H1N1 and 2009 pandemic H1N1 lineages has been observed previously, indicating the involvement of cross-reacting T-cells. Here, reverse vaccinology was applied to identify cross-reacting MHC class I T-cell epitopes from two different SwIV H1 lineages in pigs. In silico prediction followed by in vitro and in vivo testing was used to identify SLA-1*0702 T-cell epitopes in heterologous SwIV-infected pigs...
May 30, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28555289/association-of-high-carotid-bifurcation-and-thyrolinguofacial-trunk-a-rare-variation
#20
Suresh Narayanan, Senthil Murugan
Variations in the origins and the branching pattern of the carotid system of arteries are not uncommon. Here we report a rare case of higher bifurcation of the common carotid artery (CCA) (at the level of the greater cornu of the hyoid bone), thyrolinguofacial trunk (TLFT) originating from the CCA, superior laryngeal artery (SLA) arising from the external carotid artery (ECA) on the left side, and linguofacial trunk arising from the ECA on the right side. In the present case, the CCA and carotid bifurcation may have arisen from the second aortic arch...
May 29, 2017: Anatomical Science International
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