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https://www.readbyqxmd.com/read/28208238/effects-of-extreme-drought-on-specific-leaf-area-of-grassland-species-a-meta-analysis-of-experimental-studies-in-temperate-and-sub-mediterranean-systems
#1
C Wellstein, P Poschlod, A Gohlke, S Chelli, G Campetella, S Rosbakh, R Canullo, J Kreyling, A Jentsch, C Beierkuhnlein
Here, we conducted a meta-analysis of experimental drought manipulation studies using rain-out shelters in five sites of natural grassland ecosystems of Europe. The single studies assess the effects of extreme drought on the intraspecific variation of the specific leaf area (SLA), a proxy of plant growth. We evaluate and compare the effect size of the SLA response for the functional groups of forbs and grasses in temperate and sub-Mediterranean systems. We hypothesized that the functional groups of grasses and forbs from temperate grassland systems have different strategies in short-term drought response, measured as adjustment of SLA, with SLA-reduction in grasses and SLA-maintenance in forbs...
February 16, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28196156/clinical-and-histologic-evaluations-of-sla-dental-implants
#2
Myron Nevins, Stefano Parma-Benfenati, Franco Quinti, Prima Galletti, Cosmin Sava, Catalin Sava, David M Kim
The goal of this investigation was to evaluate the efficacy of dental implants with a surface that was sandblasted with large grit and acid etched in a human model. Eight patients volunteered to allow the biopsy of a small implant in exchange for complete dental rehabilitation at no cost. All biopsy sites received soft and hard tissue reconstruction, and this report provides observation of successful bone-to-implant contact and successful prosthesis construction for the patient. The patients enthusiastically reported improved quality of life as a result of participation in this study...
March 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28182638/effect-of-elevated-atmospheric-co2-concentration-on-growth-and-leaf-litter-decomposition-of-quercus-acutissima-and-fraxinus-rhynchophylla
#3
Sangsub Cha, Hee-Myung Chae, Sang-Hoon Lee, Jae-Kuk Shim
The atmospheric carbon dioxide (CO2) level is expected to increase substantially, which may change the global climate and carbon dynamics in ecosystems. We examined the effects of an elevated atmospheric CO2 level on the growth of Quercus acutissima and Fraxinus rhynchophylla seedlings. We investigated changes in the chemical composition of leaf litter, as well as litter decomposition. Q. acutissima and F. rhynchophylla did not show differences in dry weight between ambient CO2 and enriched CO2 treatments, but they exhibited different patterns of carbon allocation, namely, lower shoot/root ratio (S/R) and decreased specific leaf area (SLA) under CO2-enriched conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28181465/the-effect-of-ulnar-variance-on-scapholunate-and-capitolunate-angles
#4
Ozgur Tosun, Atilla Hikmet Çilengir, Berna Dirim Mete, Muhsin Engin Uluc, Orhan Oyar, Aliye Tosun
Background Ulnar variance (UV), which is measured using anteroposterior (AP) X-rays, is associated with the development of multiple wrist pathologies. The scapholunate angle (SLA) and capitolunate angle (CLA) are measured using lateral X-rays, and these can be used in the diagnosis of intercalated segmental instability. Purpose To determine the effect of UV on SLA and CLA. Material and Methods A total of 140 patients (73 women, 67 men; mean age, 37.8 ± 14.6 years; 95% confidence interval [CI], 35.4-40...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28168727/comparison-of-pro-inflammatory-cytokines-of-non-healing-and-healing-cutaneous-leishmaniasis
#5
Mohammad Moafi, Hossein Rezvan, Roya Sherkat, Roya Taleban, Ali Asilian, Sayyed Hamid Zarkesh-Esfahani, Mohammad Ali Nilforoushzadeh, Fariba Jaffary, Marjan Mansourian, Fatemeh Sokhanvari, Nazli Ansari
Cutaneous Leishmaniasis (CL) heals spontaneously within several weeks or months, but, in rare cases, CL active lesions last for many years. In the current study, we assessed cell-mediated immunity in non-healing CL through the measurement of three pro-inflammatory cytokines: Interferon-γ (IFN-γ), IL-17a, and CXCL-11. For this, 32 patients afflicted with healing or non-healing CL were recruited in this study. Peripheral blood mononuclear cells (PBMCs) of every patient were treated with three antigens: purified protein derivative (PPD), soluble Leishmania antigen (SLA), and Phytohaemagglutinin (PHA)...
February 7, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/28160512/prevalence-of-dental-trauma-and-use-of-mouthguards-in-professional-handball-players
#6
Lana Bergman, Slađana Milardović Ortolan, Davor Žarković, Joško Viskić, Dražen Jokić, Ketij Mehulić
BACKGROUND / AIM: Published data about orofacial injuries and mouthguard use by professional handball players is scarce. The aim of this study was to investigate the prevalence of orofacial trauma and mouthguard use in professional handball players. MATERIALS AND METHODS: Data were collected among 100 professional handball players through a questionnaire which contained 17 questions about age, experience in playing handball, playing position, orofacial trauma experience during the past 12 months, type of injury and mouthguard use...
February 4, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28157196/effect-of-different-titanium-surfaces-on-maturation-of-murine-bone-marrow-derived-dendritic-cells
#7
Xiaofei Zheng, Fengjuan Zhou, Yifei Gu, Xiaobo Duan, Anchun Mo
Dendritic cells (DCs) play a pivotal role in the host response to implanted biomaterials. Osseointegration of titanium (Ti) implant is an immunological and inflammatory-driven process. However, the role of DCs in this complex process is largely unknown. This study aimed to investigate the effect of different Ti surfaces on DC maturation, and evaluate its subsequent potential on osteogenic differentiation of preosteoblasts. Murine bone marrow-derived DCs were seeded on Ti disks with different surface treatments, including pretreatment (PT), sandblasted/acid-etched (SLA) and modified SLA (modSLA) surface...
February 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28150529/free-asparagine-and-sugars-profile-of-cereal-species-the-potential-of-cereals-for-acrylamide-formation-in-foods
#8
Slađana Žilić, Dejan Dodig, Zorica Basić, Jelena Vančetović, Primož Titan, Nenad Đurić, Nataša Tolimir
Cereals based food is one of the major source of Maillard reaction products in the diet. Free amino acids and reducing sugars are considered to be the main precursors in the formation of these heat-induced compounds. In order to determine genetic resources with reduced potential for acrylamide formation, the content of sugars, as well as free asparagine were analyzed in a total of 30 cultivars of 10 varieties belonging to eight species (Triticum aestivum var. lutescens, T. aestivum var. alba, T. aestivum var...
February 2, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28150041/evaluation-of-a-hypothetical-protein-for-serodiagnosis-and-as-a-potential-marker-for-post-treatment-serological-evaluation-of-tegumentary-leishmaniasis-patients
#9
Mariana Pedrosa Lima, Lourena Emanuele Costa, Mariana Costa Duarte, Daniel Menezes-Souza, Beatriz Cristina Silveira Salles, Thaís Teodoro de Oliveira Santos, Fernanda Fonseca Ramos, Miguel Angel Chávez-Fumagalli, Amanda Christine Silva Kursancew, Roberta Passamani Ambrósio, Bruno Mendes Roatt, Ricardo Andrez Machado-de-Ávila, Denise Utsch Gonçalves, Eduardo Antonio Ferraz Coelho
The serodiagnosis for tegumentary leishmaniasis (TL) presents problems related to the sensitivity and/or specificity of the tests. In the present study, an enzyme-linked immunosorbent assay (ELISA) technique was used to evaluate the performance from a Leishmania braziliensis hypothetical protein, LbHyM, in an attempt to compare its serological reactivity with a soluble Leishmania antigenic preparation (SLA) for the serodiagnosis of cutaneous (CL) and mucosal (ML) leishmaniasis. LbHyM was predicted to be a kinesin-like protein by bioinformatics tools...
February 1, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28134341/identification-and-characterization-of-a-plastidic-adenine-nucleotide-uniporter-osbt1-3-required-for-chloroplast-development-in-the-early-leaf-stage-of-rice
#10
Daoheng Hu, Yang Li, Wenbin Jin, Hanyu Gong, Qiong He, Yangsheng Li
Chloroplast development is an important subject in botany. In this study, a rice (Oryza sativa) mutant exhibiting impairment in early chloroplast development (seedling leaf albino (sla)) was isolated from a filial generation via hybridization breeding. The sla mutant seedlings have an aberrant form of chloroplasts, which resulted in albinism at the first and second leaves; however, the leaf sheath was green. The mutant gradually turned green after the two-leaf stage, and the third leaf was a normal shade of green...
January 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28125700/in-vitro-activity-of-er-yag-laser-in-comparison-with-other-treatment-modalities-on-biofilm-ablation-from-implant-and-tooth-surfaces
#11
Sigrun Eick, Ivan Meier, Florian Spoerlé, Philip Bender, Akira Aoki, Yuichi Izumi, Giovanni E Salvi, Anton Sculean
BACKGROUND AND AIM: Bacterial biofilms play a major role in the etiology of periodontal and peri-implant diseases. The aim of the study was to evaluate the removal of bacterial biofilms and attachment of epithelial cells (EC), gingival fibroblasts (GF) and osteoblast-like cells (OC) to dentin and titanium surfaces after Er:YAG laser (Er:YAG) in comparison with other treatment methods. MATERIAL AND METHODS: Multi-species bacterial biofilms were grown on standardized dentin and titanium specimens with a sand-blasted and acid etched (SLA) surface for 3...
2017: PloS One
https://www.readbyqxmd.com/read/28124118/expanding-our-understanding-of-leaf-functional-syndromes-in-savanna-systems-the-role-of-plant-growth-form
#12
Davi Rodrigo Rossatto, Augusto Cesar Franco
The assessment of leaf strategies has been a common theme in ecology, especially where multiple sources of environmental constraints (fire, seasonal drought, nutrient-poor soils) impose a strong selection pressure towards leaf functional diversity, leading to inevitable tradeoffs among leaf traits, and ultimately to niche segregation among coexisting species. As diversification on leaf functional strategies is dependent on integration at whole plant level, we hypothesized that regardless of phylogenetic relatedness, leaf trait functional syndromes in a multivariate space would be associated with the type of growth form...
January 25, 2017: Oecologia
https://www.readbyqxmd.com/read/28119791/combined-tenodesis-capsulodesis-for-scapholunate-instability-minimum-2-year-follow-up
#13
Pablo De Carli, Agustin G Donndorff, Miguel Tovar Torres, Jorge G Boretto, Gerardo L Gallucci
Background The aim of this study is to evaluate the clinical and radiological midterm results of a combined dorsal tenodesis-capsulodesis for static and reducible scapholunate dissociation (SLD). Patients and Methods We evaluated 20 of 22 consecutive patients with static SLD minimum with follow-up of 2 years operated between 2003 and 2012. The mean age was 40 years (range: 23-65 years). Seventeen were men. Final evaluation included comparative wrist range of motion (ROM) and grip strength, pre- and postoperative pain and function by visual analog scale, and QuickDASH and Wrightington scores...
February 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28117914/chemotherapeutic-decontamination-of-dental-implants-colonized-by-mature-multispecies-oral-biofilm
#14
Sebastien Dostie, Lubna T Alkadi, Gethin Owen, Jiarui Bi, Ya Shen, Markus Haapasalo, Hannu S Larjava
AIM: No studies have tested disinfectants on mature multispecies oral biofilms on titanium substrata. The aim of this study was to investigate the efficacy of commonly used antimicrobial agents in decontamination of multispecies mature oral biofilm on SLA titanium implants. METHODS: SLA titanium disks were inoculated with dental plaque and cultured anaerobically for 21 days. The disks were rinsed with 0.9% NaCl, exposed for 2 minutes to tetracycline paste, 1% Chlorhexidine gel (CHX), 35% phosphoric acid gel (Etch) or a novel chemical formula (0...
January 24, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28114170/humoral-reactivity-of-renal-transplant-waitlisted-patients-to-cells-from-ggta1-cmah-b4galnt2-and-sla-class-i-knockout-pigs
#15
Gregory R Martens, Luz M Reyes, James R Butler, Joseph M Ladowski, Jose L Estrada, Richard A Sidner, Devin E Eckhoff, Matt Tector, A Joseph Tector
BACKGROUND: Anti-pig antibodies are a barrier to clinical xenotransplantation. We evaluated antibody binding of waitlisted renal transplant patients to 3 glycan KO pig cells and Class I swine leukocyte antigens (SLA). METHODS: Peripheral blood mononuclear cells (PBMCs) from SLA identical wild type, GGTA1 KO, GGTA1/CMAH KO, and GGTA1/CMAH/B4GalNT2 KO pigs were screened for human antibody binding using flow cytometric crossmatch (FCXM). Sera from 820 patients were screened on B4GalNT2/CMAH/GGTA1 KO cells and a subset with elevated binding was evaluated further...
January 21, 2017: Transplantation
https://www.readbyqxmd.com/read/28108334/a-study-of-glutamate-levels-nr1-nr2a-nr2b-receptors-and-oxidative-stress-in-rat-model-of-japanese-encephalitis
#16
Prashant Singh Chauhan, Usha Kant Misra, Jayantee Kalita
There is paucity of studies on the role of glutamate excitotoxicity in cell damage in Japanese encephalitis. In this study the glutamate levels and its NMDA receptors, and oxidative stress markers in different brain regions have been evaluated and correlated with neurobehavioral changes at different time points. Twelve day old Wistar rats were inoculated with 3×10(6)pfu/ml intracerebrally. The neurobehavioral effects were evaluated by spontaneous locomotor activity (SLA), grip strength and rota rod test on 10, 33 and 48days post inoculation (dpi)...
January 17, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28095640/irradiation-before-and-donor-splenocyte-infusion-immediately-after-transplantation-induce-tolerance-to-lung-but-not-heart-allografts-in-miniature-swine
#17
Wiebke Sommer, Gwen Buechler, Katharina Jansson, Murat Avsar, Ann-Kathrin Knöfel, Jawad Salman, Klaus Hoeffler, Thierry Siemeni, Jens Gottlieb, Johann H Karstens, Danny Jonigk, Ansgar Reising, Axel Haverich, Martin Strüber, Gregor Warnecke
Solid organs may differ in their potential to induce and maintain a state of donor-specific tolerance. Previously, we induced stable immunological tolerance in a lung transplantation model in miniature swine. Here, we wished to transfer this established protocol into a heart transplantation model in miniature swine. Heterotopic heart transplantation (HTX) was performed in four, and left-sided lung transplantation (LTX) in seven minipigs from gender and SLA mismatched donors. All recipients received non-myeloablative irradiation, donor splenocyte infusion and intravenous pharmacologic immunosuppression for 28 postoperative days...
January 17, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28095523/effects-of-titanium-surface-microtopography-and-simvastatin-on-growth-and-osteogenic-differentiation-of-human-mesenchymal-stem-cells-in-estrogen-deprived-cell-culture
#18
Premjit Arpornmaeklong, Prisana Pripatnanont, Chonticha Chookiatsiri, Boonsin Tangtrakulwanich
PURPOSE: This study aimed to investigate the effects of titanium surface topography and simvastatin on growth and osteogenic differentiation of human bone marrow stromal cells (hBMSCs) in estrogen-deprived (ED) cell culture. MATERIALS AND METHODS: Human BMSCs were seeded on cell culture plates, smooth-surface titanium (Ti) disks, and sandblasted with large grits and acid etched (SLA)-surface Ti disks; and subsequently cultured in regular (fetal bovine serum [FBS]), ED, and ED-with 100 nM simvastatin (ED-SIM) culture media for 14 to 21 days...
January 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28094900/high-throughput-precision-measurement-of-subcellular-localization-in-single-cells
#19
Tyler J Burns, Andreas P Frei, Pier F Gherardini, Felice A Bava, Jake E Batchelder, Yuki Yoshiyasu, Julie M Yu, Amanda R Groziak, Samuel C Kimmey, Veronica D Gonzalez, Wendy J Fantl, Garry P Nolan
To quantify visual and spatial information in single cells with a throughput of thousands of cells per second, we developed Subcellular Localization Assay (SLA). This adaptation of Proximity Ligation Assay expands the capabilities of flow cytometry to include data relating to localization of proteins to and within organelles. We used SLA to detect the nuclear import of transcription factors across cell subsets in complex samples. We further measured intranuclear re-localization of target proteins across the cell cycle and upon DNA damage induction...
January 17, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28088277/immunoassays-of-chemically-modified-polysaccharides-glycans-in-glycoproteins-and-ribose-in-nucleic-acids
#20
Slađana Strmečki, Mojmír Trefulka, Pavlína Zatloukalová, Michal Durech, Borivoj Vojtesek, Emil Paleček
Glycosylation of proteins plays an important role in health and diseases. At present new simple and inexpensive methods of glycoprotein analysis are sought. We developed a monoclonal antibody Manost 2.1 in mice after immunization with the adduct of mannan with Os(VI)temed complex (temed is N,N,N',N'-tetramethylethylenediamine). The specificity of this antibody to different biomolecules treated with Os(VI)temed was tested using dot blot immunoassay. Manost 2.1 showed specificity toward Os(VI)temed-modified polysaccharides, glycoproteins and ribonucleotide at the 3'-end in DNA...
February 22, 2017: Analytica Chimica Acta
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