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https://www.readbyqxmd.com/read/29471060/identification-of-three-class-a-scavenger-receptors-from-rainbow-trout-oncorhynchus-mykiss-scara3-scara4-and-scara5
#1
S J Poynter, A Monjo, S J DeWitte-Orr
Class A scavenger receptors (SR-As) are a family of five surface receptors whose functions in mammals are associated with innate immunity; however, their role in fish immunity requires further elucidation. The present study identifies, performs sequence analysis, and constitutive transcript expression analysis for three SR-A family members, SCARA3, SCARA4 an SCARA5, from rainbow trout. This work will provide a basis for future studies on SR-A function and their role in innate immunity in this economically important fish...
February 19, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29470938/diagnostic-performance-of-mr-elastography-for-liver-fibrosis-in-children-and-young-adults-with-a-spectrum-of-liver-diseases
#2
Andrew T Trout, Rachel M Sheridan, Suraj D Serai, Stavra A Xanthakos, Weizhe Su, Bin Zhang, Daniel B Wallihan
Purpose To assess the diagnostic performance of magnetic resonance (MR) elastography-derived liver stiffness to detect liver fibrosis in a pediatric and young adult population with a spectrum of liver diseases. Materials and Methods This retrospective study included patients younger than 21 years of age who underwent MR elastography and liver biopsy within 3 months of one another between January 2012 and September 2016 for indications other than liver transplantation or Fontan palliation of congenital heart disease...
February 22, 2018: Radiology
https://www.readbyqxmd.com/read/29470624/measuring-liver-t2-and-cardiac-t2-in-a-single-acquisition
#3
Suraj D Serai, Andrew T Trout, Robert J Fleck, Charles T Quinn, Jonathan R Dillman
PURPOSE: The purpose of this study is determine if both liver T2* and cardiac T2* can be measured on a single breath-hold acquisition. MATERIALS AND METHODS: For this IRB-approved retrospective study, 137 patients with dedicated Cardiac MRI and Liver MRI examinations obtained sequentially on 1.5T scanners and on the same day were included for analysis. Both the cardiac and liver MRI examinations utilized GRE sequences for quantification of tissue iron. Specifically, T2* was measured using an 8-echo, multi-echo gradient echo single breath-hold sequence...
February 22, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29469627/renal-lesions-in-lymphangioleiomyomatosis-and-tuberous-sclerosis-complex-are-rarely-biologically-aggressive
#4
Andrew T Trout, Alexander J Towbin, David N Franz
No abstract text is available yet for this article.
March 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29468779/probabilistic-measures-of-climate-change-vulnerability-adaptation-action-benefits-and-related-uncertainty-from-maximum-temperature-metric-selection
#5
J Tyrell DeWeber, Tyler Wagner
Predictions of the projected changes in species distribution models and potential adaptation action benefits can help guide conservation actions. There is substantial uncertainty in projecting species distributions into an unknown future, however, which can undermine confidence in predictions or misdirect conservation actions if not properly considered. Recent studies have shown that the selection of alternative climate metrics describing very different climatic aspects (e.g., mean air temperature vs. mean precipitation) can be a substantial source of projection uncertainty...
February 22, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29467746/genomic-diversity-and-evolution-of-the-fish-pathogen-flavobacterium-psychrophilum
#6
Eric Duchaud, Tatiana Rochat, Christophe Habib, Paul Barbier, Valentin Loux, Cyprien Guérin, Inger Dalsgaard, Lone Madsen, Hanne Nilsen, Krister Sundell, Tom Wiklund, Nicole Strepparava, Thomas Wahli, Greta Caburlotto, Amedeo Manfrin, Gregory D Wiens, Erina Fujiwara-Nagata, Ruben Avendaño-Herrera, Jean-François Bernardet, Pierre Nicolas
Flavobacterium psychrophilum , the etiological agent of rainbow trout fry syndrome and bacterial cold-water disease in salmonid fish, is currently one of the main bacterial pathogens hampering the productivity of salmonid farming worldwide. In this study, the genomic diversity of the F. psychrophilum species is analyzed using a set of 41 genomes, including 30 newly sequenced isolates. These were selected on the basis of available MLST data with the two-fold objective of maximizing the coverage of the species diversity and of allowing a focus on the main clonal complex (CC-ST10) infecting farmed rainbow trout ( Oncorhynchus mykiss ) worldwide...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29465780/inferring-species-interactions-through-joint-mark-recapture-analysis
#7
Charles B Yackulic, Josh Korman, Michael D Yard, Maria Dzul
Introduced species are frequently implicated in declines of native species. In many cases, however, evidence linking introduced species to native declines is weak. Failure to make strong inferences regarding the role of introduced species can hamper attempts to predict population viability and delay effective management responses. For many species, mark-recapture analysis is the more rigorous form of demographic analysis. However, to our knowledge, there are no mark-recapture models that allow for joint modeling of interacting species...
February 21, 2018: Ecology
https://www.readbyqxmd.com/read/29464844/dietary-live-yeast-and-increased-water-temperature-influence-the-gut-microbiota-of-rainbow-trout
#8
David Huyben, Li Sun, Richard Moccia, Anders Kiessling, Johan Dicksved, Torbjörn Lundh
AIMS: The objective was to determine the effects of dietary substitution of fishmeal with live yeast and increasing water temperature on the diversity and composition of gut microbiota in rainbow trout. METHODS AND RESULTS: Fish were fed either fishmeal or yeast (Saccharomyces cerevisiae) and reared in water temperatures of either 11 °C (cold) or 18 °C (warm) for six weeks. Luminal content and mucosa were collected from the distal gut and the load, diversity and species abundance of yeast and bacteria were analysed using agar plating, MALDI-TOF and rRNA gene amplicon sequencing...
February 21, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29463416/irradiation-of-rainbow-trout-at-early-life-stages-results-in-a-proteomic-legacy-in-adult-gills-part-a-proteomic-responses-in-the-irradiated-fish-and-in-non-irradiated-bystander-fish
#9
Richard W Smith, Richard D Moccia, Colin B Seymour, Carmel E Mothersill
Exposure to a single 0.5 Gy X-ray dose of eggs at 48 h after fertilisation (48 h egg), eyed eggs, yolk sac larvae (YSL) and first feeders induces a legacy effect in adult rainbow trout. This includes the transmission of a bystander effect to non-irradiated adult trout which had swam with the irradiated fish. The aim of this study was to investigate this legacy by analysing the gill proteome of these irradiated and bystander fish. Irradiation at all of the early life stages resulted in changes to proteins which play a key role in development but are also known to be anti-tumorigenic and anti-oxidant: upregulation of haemoglobin subunit beta (48 h egg), haemoglobin, serum albumin 1 precursor (eyed eggs), clathrin heavy chain 1 isoform X10 (eyed eggs and first feeders), and actin-related protein 2/3 complex subunit 4 (first feeders), downregulation of pyruvate dehydrogenase, histone 1 (48 h egg), triosephosphate isomerase (TPI), collagen alpha-1(1) chain like proteins (YSL), pyruvate kinase PKM-like protein (YSL and first feeders), ubiquitin-40S ribosomal proteins S27 and eukaryotic translation initiation factor 4 A isoform 1B (first feeders)...
February 17, 2018: Environmental Research
https://www.readbyqxmd.com/read/29454143/the-osmorespiratory-compromise-in-rainbow-trout-oncorhynchus-mykiss-the-effects-of-fish-size-hypoxia-temperature-and-strenuous-exercise-on-gill-diffusive-water-fluxes-and-sodium-net-loss-rates
#10
John O Onukwufor, Chris M Wood
In the context of the osmorespiratory compromise, hypoxia and temperature have been little studied relative to exercise, and diffusive water flux rates (as assessed by 3 H 2 O efflux) have received almost no attention. We investigated the effects of fish size, hypoxia, exercise and acute temperature increase on diffusive water flux rates and net sodium loss rates in juvenile rainbow trout. Trout weighing 13-50 g were used to determine the effects of fish size under normoxia. Thereafter 25-50 g trout were selected to assess the effects of different hypoxia levels (3...
February 14, 2018: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29447294/evidence-of-sex-bias-in-gene-expression-in-the-brain-transcriptome-of-two-populations-of-rainbow-trout-oncorhynchus-mykiss-with-divergent-life-histories
#11
Matthew C Hale, Garrett J McKinney, Frank P Thrower, Krista M Nichols
Sex-bias in gene expression is a mechanism that can generate phenotypic variance between the sexes, however, relatively little is known about how patterns of sex-bias vary during development, and how variable sex-bias is between different populations. To that end, we measured sex-bias in gene expression in the brain transcriptome of rainbow trout (Oncorhynchus mykiss) during the first two years of development. Our sampling included from the fry stage through to when O. mykiss either migrate to the ocean or remain resident and undergo sexual maturation...
2018: PloS One
https://www.readbyqxmd.com/read/29445991/rainbow-trout-oncorhynchus-mykiss-anesthesia-with-myrcene-efficacy-and-physiological-responses-in-comparison-with-eugenol
#12
Ali Taheri Mirghaed, Mahyar Yasari, Seyed Saeed Mirzargar, Seyyed Morteza Hoseini
The aim of the present study was to investigate anesthetic efficacy of myrcene in rainbow trout (Oncorhynchus mykiss) along with the fish biochemical response to anesthesia in comparison with eugenol. In the first experiment, 240 fish were stocked in 12 tanks and acclimatized to experimental conditions for 2 weeks. Then, the fish of each tank were subjected to one concentration of either eugenol (12, 20, 30, 50, 80, and 130 μL/L) or myrcene (100, 150, 200, 300, 400, and 500 μL/L) concentrations. Induction time of and recovery time from anesthesia were recorded for each fish separately...
February 14, 2018: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29445835/application-and-evaluation-of-a-high-resolution-mass-spectrometry-screening-method-for-veterinary-drug-residues-in-incurred-fish-and-imported-aquaculture-samples
#13
Sherri B Turnipseed, Joseph M Storey, I-Lin Wu, Charles M Gieseker, Nicholas R Hasbrouck, Tina C Crosby, Wendy C Andersen, Shanae Lanier, Christine R Casey, Robert Burger, Mark R Madson
The ability to detect chemical contaminants, including veterinary drug residues in animal products such as fish, is an important example of food safety analysis. In this paper, a liquid chromatography high-resolution mass spectrometry (LC-HRMS) screening method using a quadrupole-Orbitrap instrument was applied to the analysis of veterinary drug residues in incurred tissues from aquacultured channel catfish, rainbow trout, and Atlantic salmon and imported aquacultured products including European eel, yellow croaker, and tilapia...
February 14, 2018: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29444486/brook-trout-distributional-response-to-unconventional-oil-and-gas-development-landscape-context-matters
#14
Eric R Merriam, J Todd Petty, Kelly O Maloney, John A Young, Stephen P Faulkner, E Terrence Slonecker, Lesley E Milheim, Atesmachew Hailegiorgis, Jonathan Niles
We conducted a large-scale assessment of unconventional oil and gas (UOG) development effects on brook trout (Salvelinus fontinalis) distribution. We compiled 2231 brook trout collection records from the Upper Susquehanna River Watershed, USA. We used boosted regression tree (BRT) analysis to predict occurrence probability at the 1:24,000 stream-segment scale as a function of natural and anthropogenic landscape and climatic attributes. We then evaluated the importance of landscape context (i.e., pre-existing natural habitat quality and anthropogenic degradation) in modulating the effects of UOG on brook trout distribution under UOG development scenarios...
February 11, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29438578/individual-heterogeneity-and-early-life-conditions-shape-growth-in-a-freshwater-top-predator
#15
Chloé R Nater, Atle Rustadbakken, Torbjørn Ergon, Øystein Langangen, S Jannicke Moe, Yngvild Vindenes, L Asbjørn Vøllestad, Per Aass
Body size can have profound impacts on survival, movement, and reproductive schedules shaping individual fitness, making growth a central process in ecological and evolutionary dynamics. Realized growth is the result of a complex interplay between life history schedules, individual variation, and environmental influences. Integrating all of these aspects into growth models is methodologically difficult, depends on the availability of repeated measurements of identifiable individuals, and consequently represents a major challenge in particular for natural populations...
February 13, 2018: Ecology
https://www.readbyqxmd.com/read/29436946/what-patients-want-to-know-about-imaging-examinations-a-multiinstitutional-u-s-survey-in-adult-and-pediatric-teaching-hospitals-on-patient-preferences-for-receiving-information-before-radiologic-examinations
#16
Jay K Pahade, Andrew T Trout, Bin Zhang, Pradeep Bhambhvani, Victorine V Muse, Lisa R Delaney, Evan J Zucker, Pari V Pandharipande, James A Brink, Marilyn J Goske
Purpose To identify what information patients and parents or caregivers found useful before an imaging examination, from whom they preferred to receive information, and how those preferences related to patient-specific variables including demographics and prior radiologic examinations. Materials and Methods A 24-item survey was distributed at three pediatric and three adult hospitals between January and May 2015. The χ 2 or Fisher exact test (categorical variables) and one-way analysis of variance or two-sample t test (continuous variables) were used for comparisons...
February 13, 2018: Radiology
https://www.readbyqxmd.com/read/29435251/transcriptome-response-of-atlantic-salmon-salmo-salar-to-competition-with-ecologically-similar-non-native-species
#17
Xiaoping He, Aimee Lee S Houde, Bryan D Neff, Daniel D Heath
Non-native species may be introduced either intentionally or unintentionally, and their impact can range from benign to highly disruptive. Non-native salmonids were introduced into Lake Ontario, Canada, to provide recreational fishing opportunities; however, the establishment of those species has been proposed as a significant barrier to the reintroduction of native Atlantic salmon (Salmo salar) due to intense interspecific competition. In this study, we compared population differences of Atlantic salmon in transcriptome response to interspecific competition...
February 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29433752/irradiation-of-rainbow-trout-at-early-life-stages-results-in-a-proteomic-legacy-in-adult-gills-part-b-the-effect-of-a-second-radiation-dose-after-one-year-on-the-proteomic-responses-in-the-irradiated-and-non-irradiated-bystander-fish
#18
Richard W Smith, Richard D Moccia, Carmel E Mothersill, Colin B Seymour
This study extends the investigation of the legacy effects of exposure to a single radiation dose at one of four early life stages, in adult rainbow trout (Part A), by examining the effects of a second identical dose after one year; i.e. egg 48 h after fertilisation (48 h egg) + 1 year, eyed egg + 1 year, yolk sac larvae (YSL) + 1 year and first feeder + 1 year. This included the induction of a bystander effect in non-irradiated trout which had swam with the irradiated fish. The second radiation dose negated any beneficial proteomic responses following early life stage irradiation only, particularly irradiation of 48 h eggs and eyed eggs (Part A)...
February 9, 2018: Environmental Research
https://www.readbyqxmd.com/read/29433751/corrigendum-to-scavengers-for-bacteria-rainbow-trout-have-two-functional-variants-of-marco-that-bind-to-gram-negative-and-positive-bacteria-dev-and-comp-imm-2017-95-105
#19
Sarah J Poynter, Andrea L Monjo, Gabriella Micheli, Stephanie J DeWitte-Orr
No abstract text is available yet for this article.
February 10, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29431223/a-rainbow-trout-oncorhynchus-mykiss-strain-with-higher-aerobic-scope-in-normoxia-also-has-superior-tolerance-of-hypoxia
#20
Y Zhang, T M Healy, W Vandersteen, P M Schulte, A P Farrell
This study compared parr from three strains of rainbow trout Oncorhynchus mykiss to examine intraspecific variation in metabolic traits, hypoxia tolerance and upper thermal tolerance in this species. At the strain level, variation in absolute aerobic scope (AAS), critical oxygen level (O2crit ), incipient lethal oxygen saturation (ILOS) and critical thermal maximum (CTmax ) generally exhibited consistent differences among the strains, suggesting the possibility of functional associations among these traits...
February 2018: Journal of Fish Biology
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