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https://www.readbyqxmd.com/read/28102695/application-of-modified-atmosphere-packaging-on-aquacultured-fish-and-fish-products-a-review
#1
Achilleas D Bouletis, Ioannis S Arvanitoyannis, Christos Hadjichristodoulou
Aquaculture industry has undergone a rapid and continuous growth during the last decade due to increased demands in seafood consumption and reduced pelagic fish production. Aquaculture sector can provide products with a consistent flow and quality standards to cover the market's needs. Modified atmosphere packaging (MAP) technique has evolved over the last two decades and many reports indicate its beneficial effect on many quality parameters during fish and shellfish preservation. The use of MAP can clearly offer an advantage to the safer distribution of quality aqua cultured fishery products...
January 19, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28089513/human-disruption-of-coral-reef-trophic-structure
#2
Nicholas A J Graham, Tim R McClanahan, M Aaron MacNeil, Shaun K Wilson, Joshua E Cinner, Cindy Huchery, Thomas H Holmes
The distribution of biomass among trophic levels provides a theoretical basis for understanding energy flow and the hierarchical structure of animal communities. In the absence of energy subsidies [1], bottom-heavy trophic pyramids are expected to predominate, based on energy transfer efficiency [2] and empirical evidence from multiple ecosystems [3]. However, the predicted pyramid of biomass distribution among trophic levels may be disrupted through trophic replacement by alternative organisms in the ecosystem, trophic cascades, and humans preferentially impacting specific trophic levels [4-6]...
January 9, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28088639/docosahexaenoic-acid-loaded-lipid-nanoparticles-with-bactericidal-activity-against-helicobacter-pylori
#3
Catarina Leal Seabra, Cláudia Nunes, Maria Gomez-Lazaro, Marta Correia, José Carlos Machado, Inês C Gonçalves, Celso A Reis, Salette Reis, M Cristina L Martins
Docosahexaenoic acid (DHA), an omega-3 polyunsaturated fatty acid present in fish oil, has been described as a promising molecule to the treatment of Helicobacter pylori gastric infection. However, due to its highly unsaturated structure, DHA can be easily oxidized loosing part of its bioactivity. This work aims the nanoencapsulation of DHA to improve its bactericidal efficacy against H. pylori. DHA was loaded into nanostructured lipid carriers (NLC) produced by hot homogenization and ultrasonication using a blend of lipids (Precirol ATO5(®), Miglyol-812(®)) and a surfactant (Tween 60(®))...
January 11, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28078716/incorporating-food-web-dynamics-into-ecological-restoration-a-modeling-approach-for-river-ecosystems
#4
J Ryan Bellmore, Joseph R Benjamin, Michael Newsom, Jennifer A Bountry, Daniel Dombroski
Restoration is frequently aimed at the recovery of target species, but also influences the larger food web in which these species participate. Effects of restoration on this broader network of organisms can influence target species both directly and indirectly via changes in energy flow through food webs. To help incorporate these complexities into river restoration planning we constructed a model that links river food web dynamics to in-stream physical habitat and riparian vegetation conditions. We present an application of the model to the Methow River, Washington (USA), a location of on-going restoration aimed at recovering salmon...
January 12, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28077710/sensory-flow-as-a-basis-for-a-novel-distance-cue-in-freely-behaving-electric-fish
#5
Volker Hofmann, Juan Ignacio Sanguinetti-Scheck, Leonel Gómez-Sena, Jacob Engelmann
: The sensory input that an animal receives is directly linked to its motor activity. Behavior thus enables animals to influence their sensory input, a concept referred to as active sensing. How such behavior can serve as a scaffold for generating sensory information is of general scientific interest. In this article, we investigate how behavior can shape sensory information by using some unique features of the sensorimotor system of the weakly electric fish. Based on quantitative behavioral characterizations and computational reconstruction of sensory input, we show how electrosensory flow is actively created during highly patterned, spontaneous behavior in Gnathonemus petersii...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28075531/three-dimensional-imaging-flow-cytometry-through-light-sheet-fluorescence-microscopy
#6
REVIEW
Emilio J Gualda, Hugo Pereira, Gabriel G Martins, Rui Gardner, Nuno Moreno
Flow cytometry is the tool of choice for high-speed acquisition and analysis of large cell populations, with the tradeoff of lacking intracellular spatial information. Although in the last decades flow cytometry systems that can actually acquire two-dimensional spatial information were developed, some of the limitations remained though, namely constrains related to sample size and lack of depth or dynamic information. The combination of fluidics and light-sheet illumination has the potential to address these limitations...
January 11, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28070307/global-ecological-success-of-thalassoma-fishes-in-extreme-coral-reef-habitats
#7
Christopher J Fulton, Peter C Wainwright, Andrew S Hoey, David R Bellwood
Phenotypic adaptations can allow organisms to relax abiotic selection and facilitate their ecological success in challenging habitats, yet we have relatively little data for the prevalence of this phenomenon at macroecological scales. Using data on the relative abundance of coral reef wrasses and parrotfishes (f. Labridae) spread across three ocean basins and the Red Sea, we reveal the consistent global dominance of extreme wave-swept habitats by fishes in the genus Thalassoma, with abundances up to 15 times higher than any other labrid...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28066821/evaluation-of-receptor-ligand-mechanisms-of-dual-targeted-particles-to-an-inflamed-endothelium
#8
Catherine A Fromen, Margaret B Fish, Anthony Zimmerman, Reheman Adili, Michael Holinstat, Omolola Eniola-Adefeso
Vascular-targeted carriers (VTCs) are designed as leukocyte mimics, decorated with ligands that target leukocyte adhesion molecules (LAMs) and facilitate adhesion to diseased endothelium. VTCs require different design considerations than other targeted particle therapies; adhesion of VTCs in regions with dynamic blood flow requires multiple ligand-receptor (LR) pairs that provide particle adhesion and disease specificity. Despite the ultimate goal of leukocyte mimicry, the specificity of multiple LAM-targeted VTCs remains poorly understood, especially in physiological environments...
March 2016: Bioeng Transl Med
https://www.readbyqxmd.com/read/28063712/the-psychoactive-pollutant-fluoxetine-compromises-antipredator-behaviour-in-fish
#9
Jake M Martin, Minna Saaristo, Michael G Bertram, Phoebe J Lewis, Timothy L Coggan, Bradley O Clarke, Bob B M Wong
Pharmaceuticals are increasingly being detected in aquatic ecosystems worldwide. Particularly concerning are pharmaceutical pollutants that can adversely impact exposed wildlife, even at extremely low concentrations. One such contaminant is the widely prescribed antidepressant fluoxetine, which can disrupt neurotransmission and behavioural pathways in wildlife. Despite this, relatively limited research has addressed the behavioural impacts of fluoxetine at ecologically realistic exposure concentrations. Here, we show that 28-day fluoxetine exposure at two ecologically relevant dosages-one representing low surface water concentrations and another representing high effluent flow concentrations-alters antipredator behaviour in Eastern mosquitofish (Gambusia holbrooki)...
January 4, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28055240/multimodality-technologies-in-the-assessment-of-hematolymphoid-neoplasms
#10
Shiyong Li, David L Jaye, Kyle T Bradley, Linsheng Zhang, Debra Saxe, George Deeb, Charlie E Hill, Karen P Mann
Accurate assessment of tissues for hematolymphoid neoplasms requires an integrated multiparameter approach. Although morphologic examination by light microscopy remains the mainstay of initial assessment for hematolymphoid neoplasms, immunophenotypic analysis by immunohistochemistry and/or flow cytometry is essential to determine the pattern of differentiation and to detect minimal disease when morphology is inconclusive. In some cases, immunophenotypic analysis provides additional information for targeted immunotherapy and prognostication...
January 5, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28055115/measurement-of-t-cell-telomere-length-using-amplified-signal-fish-staining-and-flow-cytometry
#11
Andrea L Henning, Danielle E Levitt, Jakob L Vingren, Brian K McFarlin
Exposure to pathogen-associated molecular patterns (PAMPS), damage-associated molecular patterns (DAMPS), and physiologically challenging stimuli either positively or negatively affect leukocyte maturity. Cellular maturity has implications for the effectiveness of host response to bacterial or viral infection and/or tissue injury. Thus, the ability to accurately assess cellular maturity and health is important to fully understand immune status and function. The most common technique for measuring cellular maturity is to measure telomere length; however, existing techniques are not optimized for single-cell measurements using flow cytometry...
January 5, 2017: Current Protocols in Cytometry
https://www.readbyqxmd.com/read/28055113/assessment-of-telomere-length-phenotype-and-dna-content
#12
Theodoros Kelesidis, Ingrid Schmid
Telomere sequences at the end of chromosomes control somatic cell division; therefore, telomere length in a given cell population provides information about its replication potential. This unit describes a method for flow cytometric measurement of telomere length in subpopulations using fluorescence in situ hybridization of fluorescently-labeled probes (Flow-FISH) without prior cell separation. After cells are stained for surface immunofluorescence, antigen-antibody complexes are covalently cross-linked onto cell membranes before FISH with a telomere-specific probe...
January 5, 2017: Current Protocols in Cytometry
https://www.readbyqxmd.com/read/28053574/evaluation-of-different-commercial-feeds-on-grow-out-silver-black-porgy-sparidentex-hasta-valenciennes-for-optimum-growth-performance-fillet-quality-and-cost-of-production
#13
M A Hossain, K M Al-Abdul-Elah, S El-Dakour
The objective of the study was to find a cost-effective feed from three commercial feeds, namely, Arasco (Saudi Arabia), Skretting (Turkey), and Biomar (Greece) for commercially producing silver black porgy (sobaity bream), Sparidentex hasta in Kuwait. For confidentiality, these feeds were randomly given code names, diets 1, 2, and 3, which were known only to the investigating staffs. The trash fish (diet 4) was used as the control. The experiment was conducted for 28 wk with grow-out sobaity bream (210.0 ± 0...
January 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28053309/drag-reduction-through-self-texturing-compliant-bionic-materials
#14
Eryong Liu, Longyang Li, Gang Wang, Zhixiang Zeng, Wenjie Zhao, Qunji Xue
Compliant fish skin is effectively in reducing drag, thus the design and application of compliant bionic materials may be a good choice for drag reduction. Here we consider the drag reduction of compliant bionic materials. First, ZnO and PDMS mesh modified with n-octadecane were prepared, the drag reduction of self-texturing compliant n-octadecane were studied. The results show that the mesh modified by ZnO and PDMS possess excellent lipophilic and hydrophobic, thus n-octadecane at solid, semisolid and liquid state all have good adhesion with modified mesh...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28052494/environmental-flows-in-the-context-of-unconventional-natural-gas-development-in-the-marcellus-shale
#15
Brian P Buchanan, Daniel A Auerbach, Ryan A McManamay, Jason M Taylor, Alexander S Flecker, Josephine A Archibald, Daniel R Fuka, M Todd Walter
Quantitative flow-ecology relationships are needed to evaluate how water withdrawals for unconventional natural gas development may impact aquatic ecosystems. Addressing this need, we studied current patterns of hydrologic alteration in the Marcellus Shale region and related the estimated flow alteration to fish community measures. We then used these empirical flow-ecology relationships to evaluate alternative surface water withdrawals and environmental flow rules. Reduced high-flow magnitude, dampened rates of change, and increased low-flow magnitudes were apparent regionally, but changes in many of the flow metrics likely to be sensitive to withdrawals also showed substantial regional variation...
January 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28031790/a-genetically-distinct-hybrid-zone-occurs-for-two-globally-invasive-mosquito-fish-species-with-striking-phenotypic-resemblance
#16
Rebecca J Wilk, Lisa Horth
Hybrid zones allow for the investigation of incipient speciation and related evolutionary processes of selection, gene flow, and migration. Interspecific dynamics, like competition, can impact the size, shape, and directional movement of species in hybrid zones. Hybrid zones contribute to a paradox for the biological species concept because interbreeding between species occurs while parental forms remain distinct. A long-standing zone of intergradation or introgression exists for eastern and western mosquito fish (Gambusia holbrooki and G...
December 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28028120/ccnd1-igh-fusion-amplification-and-myc-copy-number-gain-in-a-case-of-pleomorphic-variant-mantle-cell-lymphoma
#17
Yuan Miao, Pei Lin, Wei Wang, L Jeffrey Medeiros, Xinyan Lu
OBJECTIVES: Mantle cell lymphoma (MCL) may present de novo or undergo progression to a clinically aggressive variant, known as a blastoid or pleomorphic variant. We report an unusual case of classic MCL in a 78-year-old man with a typical immunophenotype, including CD5 positivity, who subsequently relapsed with CD5-negative pleomorphic variant MCL. METHODS: Biopsy specimens were evaluated using Wright-Giemsa-stained or H&E-stained sections, flow cytometry, immunohistochemistry, conventional cytogenetic, next-generation sequencing, and fluorescence in situ hybridization...
December 27, 2016: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28027556/overexpression-of-tp53-tp53i3-and-birc5-alterations-of-gene-regulation-of-apoptosis-and-aging-of-human-immune-cells-in-a-remote-period-after-radiation-exposure
#18
I N Ilienko, D A Bazyka
OBJECTIVE: To identify a contributive role of changes in gene regulation of apoptosis and telomere length at tran scriptional and translational levels to the formation of radiation induced effects in immune system. PATIENTS AND METHODS: Study groups included 310 Chornobyl (Chornobyl) cleanup workers (dose of external expo sure (360.82 ± 32.3) mSv; age 58.9 ± 0.6 (M ± SD) years) and control (n = 77; age (52.9 ± 0.64) (M ± SD) years). Expression of CD95, phosphatidylserine receptors, bcl2 and p53 proteins was studied by flow cytometry; the relative expression (RQ) of BAX, BIRC5, FASLG, MADD, MAPK14, TP53, TP53I3, TERT, TERF1, TERF2 genes was performed using 7900 HT Fast RT PCR System and TagMan technology...
December 2016: Problemy Radiat︠s︡iĭnoï Medyt︠s︡yny Ta Radiobiolohiï
https://www.readbyqxmd.com/read/28012588/determination-of-biogenic-amines-in-canned-fish-samples-using-head-space-solid-phase-microextraction-based-on-nanostructured-polypyrrole-fiber-coupled-to-modified-ionization-region-ion-mobility-spectrometry
#19
Razieh Parchami, Mahdie Kamalabadi, Naader Alizadeh
The head-space solid phase microextraction (HS-SPME) was applied to extraction and determination of histamine (HIS), putrescine (PUT), cadaverine (CAD), tyramine (TYR) in canned fish samples by ion mobility spectrometry (IMS) without any derivatization process. HIS and CAD have the same mobilities in nitrogen as buffer gas and their corresponding peaks are severely overlapped in ion mobility spectrum. Peak separation was acquired in the presence of 18-crown-6 vapor as complexation reagent into carrier gas and modified ionization region of IMS (MIR-IMS) at optimum flow rate...
December 16, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28008958/zika-virus-infection-induces-mitosis-abnormalities-and-apoptotic-cell-death-of-human-neural-progenitor-cells
#20
Bruno S F Souza, Gabriela L A Sampaio, Ciro S Pereira, Gubio S Campos, Silvia I Sardi, Luiz A R Freitas, Claudio P Figueira, Bruno D Paredes, Carolina K V Nonaka, Carine M Azevedo, Vinicius P C Rocha, Antonio C Bandeira, Rosalia Mendez-Otero, Ricardo Ribeiro Dos Santos, Milena B P Soares
Zika virus (ZIKV) infection has been associated with severe complications both in the developing and adult nervous system. To investigate the deleterious effects of ZIKV infection, we used human neural progenitor cells (NPC), derived from induced pluripotent stem cells (iPSC). We found that NPC are highly susceptible to ZIKV and the infection results in cell death. ZIKV infection led to a marked reduction in cell proliferation, ultrastructural alterations and induction of autophagy. Induction of apoptosis of Sox2(+) cells was demonstrated by activation of caspases 3/7, 8 and 9, and by ultrastructural and flow cytometry analyses...
December 23, 2016: Scientific Reports
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