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Pesquisa : B01.050.150.900.493.817.750 [Categoria DeCS]
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[PMID]:29381760
[Au] Autor:Yatabe T; More SJ; Geoghegan F; McManus C; Hill AE; Martínez-López B
[Ad] Endereço:Center for Animal Disease Modeling and Surveillance (CADMS), Department of Medicine & Epidemiology, School Veterinary Medicine, University of California, Davis, California, United States of America.
[Ti] Título:Can biosecurity and local network properties predict pathogen species richness in the salmonid industry?
[So] Source:PLoS One;13(1):e0191680, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Salmonid farming in Ireland is mostly organic, which implies limited disease treatment options. This highlights the importance of biosecurity for preventing the introduction and spread of infectious agents. Similarly, the effect of local network properties on infection spread processes has rarely been evaluated. In this paper, we characterized the biosecurity of salmonid farms in Ireland using a survey, and then developed a score for benchmarking the disease risk of salmonid farms. The usefulness and validity of this score, together with farm indegree (dichotomized as ≤ 1 or > 1), were assessed through generalized Poisson regression models, in which the modeled outcome was pathogen richness, defined here as the number of different diseases affecting a farm during a year. Seawater salmon (SW salmon) farms had the highest biosecurity scores with a median (interquartile range) of 82.3 (5.4), followed by freshwater salmon (FW salmon) with 75.2 (8.2), and freshwater trout (FW trout) farms with 74.8 (4.5). For FW salmon and trout farms, the top ranked model (in terms of leave-one-out information criteria, looic) was the null model (looic = 46.1). For SW salmon farms, the best ranking model was the full model with both predictors and their interaction (looic = 33.3). Farms with a higher biosecurity score were associated with lower pathogen richness, and farms with indegree > 1 (i.e. more than one fish supplier) were associated with increased pathogen richness. The effect of the interaction between these variables was also important, showing an antagonistic effect. This would indicate that biosecurity effectiveness is achieved through a broader perspective on the subject, which includes a minimization in the number of suppliers and hence in the possibilities for infection to enter a farm. The work presented here could be used to elaborate indicators of a farm's disease risk based on its biosecurity score and indegree, to inform risk-based disease surveillance and control strategies for private and public stakeholders.
[Mh] Termos MeSH primário: Doenças dos Peixes/prevenção & controle
Salmonidae/microbiologia
Medidas de Segurança
[Mh] Termos MeSH secundário: Animais
Doenças dos Peixes/microbiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180131
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191680


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[PMID]:29372967
[Au] Autor:Pankova MV; Kukhlevsky AD; Brykov VA
[Ti] Título:[Fish growth hormone genes: Divergence of coding sequences in salmonid fishes].
[So] Source:Genetika;53(2):201-13, 2017 Feb.
[Is] ISSN:0016-6758
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:Comparison of coding nucleotide sequences of the paralogous GH1 and GH2 genes, as well as of the growth hormone amino acid sequences, in the species of closely related salmonid genera Salvelinus, Oncorhynchus, and Salmo was performed. It was demonstrated that, in different groups of salmonids, the amino acid substitution rates were considerably different. In some cases, an obvious discrepancy between the divergence of growth hormone genes and phylogenetic schemes based on other methods and approaches was revealed. These findings suggest that the reason may be multidirectional selection at duplicated genes at different stages of evolution.
[Mh] Termos MeSH primário: Evolução Molecular
Proteínas de Peixes/genética
Hormônio do Crescimento/genética
Filogenia
Salmonidae/genética
[Mh] Termos MeSH secundário: Animais
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fish Proteins); 9002-72-6 (Growth Hormone)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180216
[Lr] Data última revisão:
180216
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180127
[St] Status:MEDLINE


  3 / 4246 MEDLINE  
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[PMID]:29372798
[Au] Autor:Soshina VA; Pavlov SD; Zelenina DA
[Ti] Título:[Genetic diversity of charrs of the Commander Islands based on the analysis of mitochondrial DNA].
[So] Source:Genetika;52(11):1336-41, 2016 Nov.
[Is] ISSN:0016-6758
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:Nucleotide sequences of the mitochondrial DNA cytochrome b (CytB) gene fragment and the control region (D-loop) of Dolly Varden (Salvelinus malma) from the Commander Islands and the Kol River of the Kamchatka Peninsula were examined. A high level of genetic variability of island populations comparable to that of the mainland population of western Kamchatka was demonstrated. The belonging of the Commander Islands chars to the genetic lineage of northern Dolly Varden Salvelinus malma malma was confirmed.
[Mh] Termos MeSH primário: Citocromos b/genética
Proteínas de Peixes/genética
Variação Genética
Salmonidae/genética
[Mh] Termos MeSH secundário: Animais
Sibéria
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fish Proteins); 9035-37-4 (Cytochromes b)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180205
[Lr] Data última revisão:
180205
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180127
[St] Status:MEDLINE


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[PMID]:27773731
[Au] Autor:Dadras H; Hayatbakhsh MR; Shelton WL; Golpour A
[Ad] Endereço:University of South Bohemia in Ceské Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátisí 728/II, 389 25, Vodnany, Czech Republic. Electronic address: dadras@frov.jcu.cz.
[Ti] Título:Effects of dietary administration of Rose hip and Safflower on growth performance, haematological, biochemical parameters and innate immune response of Beluga, Huso huso (Linnaeus, 1758).
[So] Source:Fish Shellfish Immunol;59:109-114, 2016 Dec.
[Is] ISSN:1095-9947
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to investigate effects of two dietary medicinal herbs, Rose hip (Rosa canina) and Safflower (Carthamus tinctorius) supplementation on growth performance, haematological, biochemical parameters and innate immune response of in juvenile beluga, Huso huso. Fish (26.3 ± 0.4 g) were allocated into 15 tanks (20 fish per tank) and triplicate groups were fed a control diet or diets containing 1% and 2% of medicinal herbs, respectively. Feed conversion ratio (FCR), specific growth rate (SGR) and condition factor (CF) did not show significant differences (P > 0.05) in fish given herbal diets. Significant differences were observed in number of white blood cells (WBC) and haemoglobin (Hb) values among the dietary treatments. The serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels were significantly lower in supplemented diet groups compared with the control. Innate immune responses (lysozyme activity and ACH ) were significantly higher in 2% Safflower-fed fish compared with other groups (P < 0.05). These results indicate that medicinal herbs in diets can be considered as a beneficial dietary supplement for improving the physiological parameters and enhance the immune response of Persian sturgeon.
[Mh] Termos MeSH primário: Carthamus tinctorius/imunologia
Suplementos Nutricionais
Imunidade Inata
Rosa/imunologia
Salmonidae/imunologia
[Mh] Termos MeSH secundário: Ração Animal/análise
Animais
Análise Química do Sangue/veterinária
Carthamus tinctorius/química
Dieta/veterinária
Testes Hematológicos/veterinária
Plantas Medicinais/química
Plantas Medicinais/imunologia
Rosa/química
Salmonidae/sangue
Salmonidae/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171203
[Lr] Data última revisão:
171203
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161106
[St] Status:MEDLINE


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[PMID]:28945823
[Au] Autor:Steinbacher P; Wanzenböck J; Brandauer M; Holper R; Landertshammer J; Mayr M; Platzl C; Stoiber W
[Ad] Endereço:Division of Animal Structure and Function, Department of Cell Biology and Physiology, University of Salzburg, Salzburg, Austria.
[Ti] Título:Thermal experience during embryogenesis contributes to the induction of dwarfism in whitefish Coregonus lavaretus.
[So] Source:PLoS One;12(9):e0185384, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Ecotype pairs provide well-suited model systems for study of intraspecific phenotypical diversification of animals. However, little is still known about the processes that account for the development of different forms and sizes within a species, particularly in teleosts. Here, embryos of a normal-growing 'large' form and a dwarf form of whitefish Coregonus lavaretus were incubated at two temperatures that are usually experienced at their own spawning sites (2°C for the normal and 6°C for the dwarf form). All fish were subjected to similar thermal treatment after hatching. The present data demonstrate for the first time that different thermal experience in embryonic life has lasting effects on body and muscle growth of this ecotype pair and contributes to the development of the dwarf form. Thus, juvenile fish of the regular form are much smaller and have less muscle mass when pre-hatching thermal conditions were similar to those typical for the spawning sites of the dwarf form (6°C) than when subjected to conditions of their own spawning sites (2°C). Surprisingly, fish of the dwarf form exhibit a similar pattern of response to thermal history (2°-fish much larger than 6°-fish), indicating that in their case, normal spawning site temperature (6°C) is indeed likely to act as a growth limiting factor. Results also demonstrate that the hypertrophic and hyperplastic muscle growth modes are similarly affected by thermal history. Immunolabelling experiments for Pax7, H3P and Mef2 provide evidence that the cellular mechanisms behind the increased growth rates after cold incubation in both ecotypes are increased proliferation and reduced differentiation rates of muscle precursor cells. This is of major significance to aspects of ecological and developmental biology and from the evolutionary perspective.
[Mh] Termos MeSH primário: Salmonidae/embriologia
[Mh] Termos MeSH secundário: Animais
Tamanho Corporal/fisiologia
Nanismo/embriologia
Nanismo/fisiopatologia
Nanismo/veterinária
Desenvolvimento Embrionário/fisiologia
Doenças dos Peixes/embriologia
Doenças dos Peixes/patologia
Doenças dos Peixes/fisiopatologia
Fibras Musculares de Contração Rápida/citologia
Fibras Musculares de Contração Rápida/fisiologia
Músculo Esquelético/embriologia
Músculo Esquelético/crescimento & desenvolvimento
Músculo Esquelético/fisiologia
Mioblastos Esqueléticos/citologia
Mioblastos Esqueléticos/fisiologia
Salmonidae/crescimento & desenvolvimento
Salmonidae/fisiologia
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171016
[Lr] Data última revisão:
171016
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170926
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0185384


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[PMID]:28877005
[Au] Autor:Mitz C; Thome C; Cybulski ME; Somers CM; Manzon RG; Wilson JY; Boreham DR
[Ad] Endereço:a Department of Medical Physics and Applied Radiation Sciences, McMaster University, Hamilton, Ontario, Canada, L8S 4L8.
[Ti] Título:Is There a Trade-Off between Radiation-Stimulated Growth and Metabolic Efficiency?
[So] Source:Radiat Res;188(4.2):486-494, 2017 Oct.
[Is] ISSN:1938-5404
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Beneficial protective effects may result from an adaptive respose to low dose radiation exposure. However, such benefits must be accompanied by some form of cost because the responsible biological mechanisms are not normally maintained in an upregulated state. It has been suggested that stimulation of adaptive response mechanisms could be metabolically costly, or that the adaptive response could come at a sacrifice to other physiological processes. We exposed developing lake whitefish embryos to a fractionated regime of gamma radiation (662 keV; 0.3 Gy min ) to determine whether radiation-stimulated growth was accompanied by a trade-off in metabolic efficiency. Developing embryos were exposed at the eyed stage to different radiation doses delivered in four fractions, ranging from 15 mGy to 8 Gy per fraction, with a 14 day separation between dose fractions. Dry weight and standard length measurements were taken 2-5 weeks after delivery of the final radiation exposure and yolk conversion efficiency was estimated by comparing the unpreserved dry weight of the yolk to the unpreserved yolk-free dry weight of the embryos and normalizing for size-related differences in somatic maintenance. Our results show that the irradiated embryos were 8-10% heavier than the controls but yolk conversion efficiency was slightly improved. This finding demonstrates that stimulated growth in developing lake whitefish embryos is not "paid for" by a trade-off in the efficiency of yolk conversion.
[Mh] Termos MeSH primário: Embrião não Mamífero/efeitos da radiação
Radiobiologia
Salmonidae/embriologia
Salmonidae/metabolismo
[Mh] Termos MeSH secundário: Animais
Relação Dose-Resposta à Radiação
Embrião não Mamífero/embriologia
Embrião não Mamífero/metabolismo
Raios gama
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171023
[Lr] Data última revisão:
171023
[Sb] Subgrupo de revista:IM; S
[Da] Data de entrada para processamento:170907
[St] Status:MEDLINE
[do] DOI:10.1667/RR14665.1


  7 / 4246 MEDLINE  
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[PMID]:28795226
[Au] Autor:Holopainen R; Eriksson-Kallio AM; Gadd T
[Ad] Endereço:Finnish Food Safety Authority Evira, Research and Laboratory Services Department, Virology Research Unit, Mustialankatu 3, 00790, Helsinki, Finland. riikka.holopainen@evira.fi.
[Ti] Título:Molecular characterisation of infectious pancreatic necrosis viruses isolated from farmed fish in Finland.
[So] Source:Arch Virol;162(11):3459-3471, 2017 Nov.
[Is] ISSN:1432-8798
[Cp] País de publicação:Austria
[La] Idioma:eng
[Ab] Resumo:Infectious pancreatic necrosis virus (IPNV) has been isolated annually since 1987 from salmonids without clinical signs at coastal fish farms in Finland. In the inland area, viral isolations were rare until 2012, when IPNV was detected at several freshwater fish farms. Between 2013 and 2015, the infection spread and IPNV was continuously isolated from several farms, both inland and on the coast. The aim of this study was to genetically characterise the IPNV isolates collected from Finnish coastal and inland fish farms over the last 15 years, and to detect genetic changes that may have occurred in the virus populations during the study period. The partial VP2 gene sequence from 88 isolates was analysed. In addition, a complete genomic coding sequence was obtained from 11 isolates. Based on the genetic analyses, Finnish IPNV isolates belong to three genogroups: 2, 5 and 6. The genetic properties of the isolates appear to vary between inland farms producing juveniles and food fish farms in the coastal region: the inland farms harboured genogroup 2 isolates, whereas at coastal farms, all three genogroups were detected. Little genetic variation was observed within the Finnish genogroup 2 and 5 isolates, whereas among the genogroup 6 isolates, two subgroups were detected. All isolates studied demonstrated amino acid patterns in the viral VP2 gene previously associated with avirulence. However, increased mortality was detected at some of the farms, indicating that more research is needed to clarify the relationship between the pathogenicity and genetic properties of IPNV isolates from different genogroups.
[Mh] Termos MeSH primário: Infecções por Birnaviridae/veterinária
Doenças dos Peixes/virologia
Vírus da Necrose Pancreática Infecciosa
Salmonidae
[Mh] Termos MeSH secundário: Animais
Aquicultura
Infecções por Birnaviridae/epidemiologia
Infecções por Birnaviridae/virologia
Finlândia/epidemiologia
Regulação Viral da Expressão Gênica
Genoma Viral
Vírus da Necrose Pancreática Infecciosa/genética
Filogenia
Proteínas Estruturais Virais/genética
Proteínas Estruturais Virais/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (VP2 protein, infectious pancreatic necrosis virus); 0 (Viral Structural Proteins)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171027
[Lr] Data última revisão:
171027
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170811
[St] Status:MEDLINE
[do] DOI:10.1007/s00705-017-3525-8


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[PMID]:28737450
[Au] Autor:Thome C; Mitz C; Hulley EN; Somers CM; Manzon RG; Wilson JY; Boreham DR
[Ad] Endereço:Department of a Medical Physics and Applied Radiation Sciences, McMaster University, Hamilton, Canada.
[Ti] Título:Initial Characterization of the Growth Stimulation and Heat-Shock-Induced Adaptive Response in Developing Lake Whitefish Embryos after Ionizing Radiation Exposure.
[So] Source:Radiat Res;188(4.2):475-485, 2017 Oct.
[Is] ISSN:1938-5404
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Ionizing radiation is known to effect development during early life stages. Lake whitefish (Coregonus clupeaformis) represent a unique model organism for examining such effects. The purpose of this study was to examine how ionizing radiation affects development in lake whitefish embryos and to investigate the presence of an adaptive response induced by heat shock. Acute exposure to Cs gamma rays was administered at five time points corresponding to major developmental stages, with doses ranging from 0.008 to 15.5 Gy. Chronic gamma-ray exposures were delivered throughout embryogenesis within a custom-built irradiator at dose rates between 0.06 and 4.4 mGy/day. Additionally, embryos were given a heat shock of 3, 6 or 9°C prior to a single acute exposure. Radiation effects were assessed based on survival, development rate, morphometric measurements and growth efficiency. Embryos showed high resistance to acute exposures with an LD of 5.0 ± 0.7 Gy immediately after fertilization, increasing to 14.2 ± 0.1 Gy later in development. Chronic irradiation at all dose rates stimulated growth, with treated embryos up to 60% larger in body mass during development compared to unirradiated controls. Chronic irradiation also accelerated the time-to-hatch. A heat shock administered 6 h prior to irradiation reduced mortality by up to 25%. Overall, low-dose chronic irradiation caused growth stimulation in developing lake whitefish embryos and acute radiation mortality was reduced by a heat-shock-induced adaptive response.
[Mh] Termos MeSH primário: Adaptação Fisiológica/efeitos da radiação
Embrião não Mamífero/fisiologia
Embrião não Mamífero/efeitos da radiação
Resposta ao Choque Térmico/efeitos da radiação
Salmonidae/embriologia
Salmonidae/fisiologia
[Mh] Termos MeSH secundário: Animais
Tamanho Corporal/efeitos da radiação
Relação Dose-Resposta à Radiação
Embrião não Mamífero/embriologia
Salmonidae/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171023
[Lr] Data última revisão:
171023
[Sb] Subgrupo de revista:IM; S
[Da] Data de entrada para processamento:170725
[St] Status:MEDLINE
[do] DOI:10.1667/RR14574.1


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[PMID]:28723273
[Au] Autor:Thome C; Tharmalingam S; Pirkkanen J; Zarnke A; Laframboise T; Boreham DR
[Ad] Endereço:a Division of Medical Sciences, Northern Ontario School of Medicine, Sudbury, Canada, P3E 2C6.
[Ti] Título:The REPAIR Project: Examining the Biological Impacts of Sub-Background Radiation Exposure within SNOLAB, a Deep Underground Laboratory.
[So] Source:Radiat Res;188(4.2):470-474, 2017 Oct.
[Is] ISSN:1938-5404
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Considerable attention has been given to understanding the biological effects of low-dose ionizing radiation exposure at levels slightly above background. However, relatively few studies have been performed to examine the inverse, where natural background radiation is removed. The limited available data suggest that organisms exposed to sub-background radiation environments undergo reduced growth and an impaired capacity to repair genetic damage. Shielding from background radiation is inherently difficult due to high-energy cosmic radiation. SNOLAB, located in Sudbury, Ontario, Canada, is a unique facility for examining the effects of sub-background radiation exposure. Originally constructed for astroparticle physics research, the laboratory is located within an active nickel mine at a depth of over 2,000 m. The rock overburden provides shielding equivalent to 6,000 m of water, thereby almost completely eliminating cosmic radiation. Additional features of the facility help to reduce radiological contamination from the surrounding rock. We are currently establishing a biological research program within SNOLAB: Researching the Effects of the Presence and Absence of Ionizing Radiation (REPAIR project). We hypothesize that natural background radiation is essential for life and maintains genomic stability, and that prolonged exposure to sub-background radiation environments will be detrimental to biological systems. Using a combination of whole organism and cell culture model systems, the effects of exposure to a sub-background environment will be examined on growth and development, as well as markers of genomic damage, DNA repair capacity and oxidative stress. The results of this research will provide further insight into the biological effects of low-dose radiation exposure as well as elucidate some of the processes that may drive evolution and selection in living systems. This Radiation Research focus issue contains reviews and original articles, which relate to the presence or absence of low-dose ionizing radiation exposure.
[Mh] Termos MeSH primário: Radiação de Fundo/efeitos adversos
Laboratórios
Exposição à Radiação/efeitos adversos
Radiobiologia/métodos
[Mh] Termos MeSH secundário: Animais
Radiação Cósmica/efeitos adversos
Radiobiologia/instrumentação
Salmonidae/embriologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171023
[Lr] Data última revisão:
171023
[Sb] Subgrupo de revista:IM; S
[Da] Data de entrada para processamento:170721
[St] Status:MEDLINE
[do] DOI:10.1667/RR14654.1


  10 / 4246 MEDLINE  
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[PMID]:28686496
[Au] Autor:Rawn DFK; Dowd M; Scuby MJS; Pantazopoulos PP; Feeley M
[Ad] Endereço:1 Food Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Sir Frederick Banting Research Centre, 251 Sir Frederick Banting Driveway, 2203C, Tunney's Pasture, Ottawa, Ontario, Canada K1A 0K9.
[Ti] Título:Polychlorinated Biphenyls and Polychlorinated Dioxins-Furans in Lake Trout and Whitefish Composite Samples from Commercial Fisheries in Lakes Erie, Huron, and Superior.
[So] Source:J Food Prot;80(8):1228-1238, 2017 Aug.
[Is] ISSN:1944-9097
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Polychlorinated biphenyls (PCBs; sum of 36 congeners) and polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs; sum of 17 2,3,7,8-substituted congeners) were measured in 93 composite samples prepared from individual lake trout (Salvelinus namaycush) and whitefish (Coregonus clupeaformis) samples collected from Lake Erie, Lake Huron, and Lake Superior. All samples had detectable concentrations of PCBs and PCDD/Fs; maximum PCB concentrations in both trout (750 ng g whole weight [ww]) and whitefish (210 ng g ww) were found in composites from fish collected from Lake Huron. The maximum toxic equivalent concentration was found in a lake trout composite sample from Lake Huron (53 pg g ww). PCB and PCDD/F congener profiles were comparable to patterns observed in fishes collected from other regions of Canada, although concentrations were above those found in other regions. A positive correlation was found between PCB concentrations determined using the historical Aroclor equivalency method and those determined using the sum of the congeners measured (r = 0.871; Spearman correlation r = 0.917) or using the six indicator PCB congeners (28, 52, 101, 138, 153, and 180; r = 0.850; Spearman correlation r = 0.935). PCBs were the dominant contributor to the overall toxic equivalent concentrations in the fish composite samples tested. These findings provide insight into PCB and PCDD/F concentrations in two commercially important fish species over a discrete time period.
[Mh] Termos MeSH primário: Dioxinas/isolamento & purificação
Contaminação de Alimentos/análise
Bifenilos Policlorados/isolamento & purificação
Salmonidae/metabolismo
Truta/metabolismo
[Mh] Termos MeSH secundário: Animais
Canadá
Pesqueiros
Furanos
Lagos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Dioxins); 0 (Furans); DFC2HB4I0K (Polychlorinated Biphenyls)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171016
[Lr] Data última revisão:
171016
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170708
[St] Status:MEDLINE
[do] DOI:10.4315/0362-028X.JFP-16-530



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