Base de dados : MEDLINE
Pesquisa : B01.050.150.900.248.815.350.400 [Categoria DeCS]
Referências encontradas : 203 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 21 ir para página                         

  1 / 203 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28880306
[Ti] Título:Cuckoo call adds another layer of deception.
[So] Source:Nature;549(7670):6, 2017 09 05.
[Is] ISSN:1476-4687
[Cp] País de publicação:England
[La] Idioma:eng
[Mh] Termos MeSH primário: Aves/fisiologia
Decepção
Comportamento de Nidação/fisiologia
Vocalização Animal/fisiologia
[Mh] Termos MeSH secundário: Animais
Feminino
Falcões/fisiologia
Masculino
Aves Canoras/fisiologia
[Pt] Tipo de publicação:EDITORIAL
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170915
[Lr] Data última revisão:
170915
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170908
[St] Status:MEDLINE
[do] DOI:10.1038/549006a


  2 / 203 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28662453
[Au] Autor:Gómez-Ramírez P; Bustnes JO; Eulaers I; Herzke D; Johnsen TV; Lepoint G; Pérez-García JM; García-Fernández AJ; Jaspers VLB
[Ad] Endereço:Department of Toxicology, Faculty of Veterinary Medicine, University of Murcia, Campus de Espinardo, 30100 Murcia, Spain. Electronic address: pilargomez@um.es.
[Ti] Título:Per- and polyfluoroalkyl substances in plasma and feathers of nestling birds of prey from northern Norway.
[So] Source:Environ Res;158:277-285, 2017 10.
[Is] ISSN:1096-0953
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Plasma samples from nestlings of two top predators, White-tailed eagle (Haliaeetus albicilla) and Northern goshawk (Accipiter gentilis) from northern Norway were analysed for a wide range of per- and polyfluoroalkyl substances (PFASs). Body feathers from the White-tailed eagles were also analysed and significant associations between specific PFASs in blood plasma and body feathers were found (0.36
[Mh] Termos MeSH primário: Águias/metabolismo
Exposição Ambiental
Poluentes Ambientais/metabolismo
Fluorcarbonetos/metabolismo
Falcões/metabolismo
[Mh] Termos MeSH secundário: Animais
Águias/sangue
Monitoramento Ambiental
Poluentes Ambientais/sangue
Plumas/química
Fluorcarbonetos/sangue
Falcões/sangue
Noruega
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Environmental Pollutants); 0 (Fluorocarbons)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:171120
[Lr] Data última revisão:
171120
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170630
[St] Status:MEDLINE


  3 / 203 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28644743
[Au] Autor:Verma SK; von Dohlen AR; Mowery JD; Scott D; Rosenthal BM; Dubey JP; Lindsay DS
[Ad] Endereço:United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Building 1001, Beltsville, Maryland 20705-2350.
[Ti] Título:Sarcocystis jamaicensis n. sp., from Red-Tailed Hawks (Buteo jamaicensis) Definitive Host and IFN-γ Gene Knockout Mice as Experimental Intermediate Host.
[So] Source:J Parasitol;103(5):555-564, 2017 Oct.
[Is] ISSN:1937-2345
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Here, we report a new species of Sarcocystis with red-tailed hawk (RTH, Buteo jamaicensis) as the natural definitive host and IFN-γ gene knockout (KO) mice as an experimental intermediate host in which sarcocysts form in muscle. Two RTHs submitted to the Carolina Raptor Center, Huntersville, North Carolina, were euthanized because they could not be rehabilitated and released. Fully sporulated 12.5 × 9.9-µm sized sporocysts were found in intestinal scrapings of both hawks. Sporocysts were orally fed to laboratory-reared outbred Swiss Webster mice (SW, Mus musculus) and also to KO mice. The sporocysts were infective for KO mice but not for SW mice. All SW mice remained asymptomatic, and neither schizonts nor sarcocysts were found in any SW mice euthanized on days 54, 77, 103 (n = 2) or 137 post-inoculation (PI). The KO mice developed neurological signs and were necropsied between 52 to 68 days PI. Schizonts/merozoites were found in all KO mice euthanized on days 52, 55 (n = 3), 59, 61 (n = 2), 66, and 68 PI and they were confined to the brain. The predominant lesion was meningoencephalitis characterized by perivascular cuffs, granulomas, and necrosis of the neural tissue. The schizonts/merozoites were located in neural tissue and were apparently extravascular. Brain homogenates from infected KO mice were infective to KO mice by subcutaneous inoculation and when seeded on to CV-1 cells. Microscopic sarcocysts were found in skeletal muscles of 5 of 8 KO mice euthanized between 55-61 days PI. Only a few sarcocysts were detected. Sarcocysts were microscopic, up to 3.5 mm long. When viewed with light microscopy, the sarcocyst wall appeared thin (<1 µm thick) and smooth. By transmission electron microscopy, the sarcocyst wall classified as "type 1j" (new designation). Molecular characterization using 18S rRNA, 28S rRNA, ITS-1, and cox1 genes revealed a close relationship with Sarcocystis microti and Sarcocystis glareoli; both species infect birds as definitive hosts. The parasite in the present study was biologically and molecularly different from species so far described in RTHs and we therefore propose a new species name, Sarcocystis jamaicensis n. sp.
[Mh] Termos MeSH primário: Doenças das Aves/parasitologia
Falcões/parasitologia
Sarcocystis/classificação
Sarcocistose/veterinária
[Mh] Termos MeSH secundário: Animais
Bioensaio/veterinária
DNA de Protozoário/química
Feminino
Interferon gama/genética
Intestinos/parasitologia
Masculino
Camundongos
Camundongos Knockout
Microscopia Eletrônica de Transmissão/veterinária
Músculo Esquelético/parasitologia
Oocistos/ultraestrutura
Filogenia
Sarcocystis/genética
Sarcocystis/isolamento & purificação
Sarcocistose/parasitologia
Análise de Sequência de DNA/veterinária
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Protozoan); 82115-62-6 (Interferon-gamma)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171025
[Lr] Data última revisão:
171025
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170624
[St] Status:MEDLINE
[do] DOI:10.1645/17-10


  4 / 203 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28542334
[Au] Autor:Nordell CJ; Wellicome TI; Bayne EM
[Ad] Endereço:Department of Biological Sciences, University of Alberta, Edmonton, Canada.
[Ti] Título:Flight initiation by Ferruginous Hawks depends on disturbance type, experience, and the anthropogenic landscape.
[So] Source:PLoS One;12(5):e0177584, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The expansion of humans and their related infrastructure is increasing the likelihood that wildlife will interact with humans. When disturbed by humans, animals often change their behaviour, which can result in time and energetic costs to that animal. An animal's decision to change behaviour is likely related to the type of disturbance, the individual's past experience with disturbance, and the landscape in which the disturbance occurs. In southern Alberta and Saskatchewan, we quantified probability of flight initiation from the nest by Ferruginous Hawks (Buteo regalis) during approaches to nests by investigators. We tested if probability of flight was related to different disturbance types, previous experience, and the anthropogenic landscape in which individual Ferruginous Hawks nested. Probability of flight was related to the type of approach by the investigator, the number of previous visits by investigators, and the vehicular traffic around the nest. Approaches by humans on foot resulted in a greater probability of flight than those in a vehicle. Approaches in a vehicle via low traffic volume access roads were related to increased probability of flight relative to other road types. The number of previous investigator approaches to the nest increased the probability of flight. Overall, we found support that Ferruginous Hawks show habituation to vehicles and the positive reinforcement hypotheses as probability of flight was negatively related to an index of traffic activity near the nest. Our work emphasizes that complex, dynamic processes drive the decision to initiate flight from the nest, and contributes to the growing body of work explaining how responses to humans vary within species.
[Mh] Termos MeSH primário: Comportamento Animal
Falcões
Atividades Humanas
[Mh] Termos MeSH secundário: Animais
Conservação dos Recursos Naturais
Comportamento de Nidação
Probabilidade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170911
[Lr] Data última revisão:
170911
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170526
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0177584


  5 / 203 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28529085
[Au] Autor:Ingram T; Zuck J; Borges CR; Redig P; Sweazea KL
[Ad] Endereço:School of Nutrition and Health Promotion, Arizona State University.
[Ti] Título:Variations in native protein glycation and plasma antioxidants in several birds of prey.
[So] Source:Comp Biochem Physiol B Biochem Mol Biol;210:18-28, 2017 Aug.
[Is] ISSN:1879-1107
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Birds are an anomaly among vertebrates as they are remarkably long-lived despite having naturally high blood glucose and metabolic rates. For mammals, hyperglycemia leads to oxidative stress and protein glycation. In contrast, many studies have shown that domestic and wild birds are relatively resistant to these glucose-mediated pathologies. Surprisingly very little research has examined protein glycation in birds of prey, which by nature consume a diet high in protein and fat that promotes gluconeogenesis. The purpose of this study was to evaluate protein glycation and antioxidant concentrations in serum samples from several birds of prey (bald eagle (BAEA), red-tailed hawk (RTHA), barred owl (BAOW), great horned owl (GHOW)) as protein glycation can accelerate oxidative stress and vice versa. Serum glucose was measured using a commercially available assay, native albumin glycation was measured by mass spectrometry and various antioxidants (uric acid, vitamin E, retinol and several carotenoids) were measured by high performance liquid chromatography. Although glucose concentrations were not significantly different between species (p=0.340), albumin glycation was significantly higher (p=0.004) in BAEA (23.67±1.90%) and BAOW (24.28±1.43%) compared to RTHA (14.31±0.63%). Of the antioxidants examined, lutein was significantly higher in BAOW (p=0.008). BAEA had the highest beta-cryptoxanthin and beta-carotene concentrations (p<0.005). The high concentrations of antioxidants in these birds of prey relative to other birds likely helps protect from complications that may otherwise arise from having high glucose and protein glycation.
[Mh] Termos MeSH primário: Antioxidantes/metabolismo
Proteínas Aviárias/sangue
Glicemia/metabolismo
Águias/sangue
Falcões/sangue
Albumina Sérica/metabolismo
Estrigiformes/sangue
[Mh] Termos MeSH secundário: Sequência de Aminoácidos
Animais
beta-Criptoxantina/sangue
Glicosilação
Luteína/sangue
Comportamento Predatório/fisiologia
Alinhamento de Sequência
Homologia de Sequência de Aminoácidos
Ácido Úrico/sangue
Vitamina A/sangue
Vitamina E/sangue
beta Caroteno/sangue
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antioxidants); 0 (Avian Proteins); 0 (Beta-Cryptoxanthin); 0 (Blood Glucose); 0 (Serum Albumin); 01YAE03M7J (beta Carotene); 11103-57-4 (Vitamin A); 1406-18-4 (Vitamin E); 268B43MJ25 (Uric Acid); X72A60C9MT (Lutein)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:170714
[Lr] Data última revisão:
170714
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170523
[St] Status:MEDLINE


  6 / 203 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28345998
[Au] Autor:Parsley RA; Tell LA; Gehring R
[Ti] Título:Pharmacokinetics of a single dose of voriconazole administered orally with and without food to red-tailed hawks (Buteo jamaicensus).
[So] Source:Am J Vet Res;78(4):433-439, 2017 Apr.
[Is] ISSN:1943-5681
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE To determine the pharmacokinetics of voriconazole administered PO with or without food to red-tailed hawks (Buteo jamaicensus) and whether any observed variability could be explained by measured covariates to inform dose adjustments. ANIMALS 7 adult red-tailed hawks. PROCEDURES In a crossover study design, hawks were randomly assigned to first receive voriconazole (15 mg/kg, PO) injected into a dead mouse (n = 3; fed birds) or without food (4; unfed birds). Sixteen days later, treatments were reversed. Blood samples were collected at various points to measure plasma voriconazole concentrations by ultraperformance liquid chromatography. Pharmacokinetic data were analyzed by noncompartmental methods and fit to a compartmental model through nonlinear mixed-effects regression, with feeding status and body weight investigated as covariates. RESULTS Voriconazole was well absorbed, with quantifiable plasma concentrations up to 24 hours after administration. Mean plasma half-life was approximately 2 hours in fed and unfed birds. Administration of the voriconazole in food delayed absorption, resulting in a significant delay in time to maximum plasma concentration. The final compartmental model included a categorical covariate to account for this lag in absorption as well as body weight as a covariate of total body clearance (relative to unknown bioavailability). CONCLUSIONS AND CLINICAL RELEVANCE A single dose of voriconazole (15 mg/kg) administered PO to red-tailed hawks resulted in mean plasma voriconazole concentrations greater than the targeted value (1 µg/mL). Additional studies with larger sample sizes and multidose regimens are required before the model developed here can be applied in clinical settings.
[Mh] Termos MeSH primário: Falcões/metabolismo
Voriconazol/farmacocinética
[Mh] Termos MeSH secundário: Administração Oral
Animais
Disponibilidade Biológica
Estudos Cross-Over
Feminino
Meia-Vida
Masculino
Camundongos
Voriconazol/administração & dosagem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RANDOMIZED CONTROLLED TRIAL
[Nm] Nome de substância:
JFU09I87TR (Voriconazole)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170526
[Lr] Data última revisão:
170526
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170328
[St] Status:MEDLINE
[do] DOI:10.2460/ajvr.78.4.433


  7 / 203 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28114852
[Au] Autor:Franson JC
[Ad] Endereço:U.S. Geological Survey, National Wildlife Health Center, Madison, WI.
[Ti] Título:Cyanide poisoning of a Cooper's hawk ( Accipiter cooperii).
[So] Source:J Vet Diagn Invest;29(2):258-260, 2017 Mar.
[Is] ISSN:1943-4936
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A Cooper's hawk ( Accipiter cooperii) was found dead in a ditch leading from a heap leach pad at a gold mine in Nevada. Observations at autopsy included an absence of external lesions, traces of subcutaneous and coronary fat, no food in the upper gastrointestinal tract, and no lesions in the viscera. Cyanide concentrations (µg/g ww) were 5.04 in blood, 3.88 in liver, and 1.79 in brain. No bacteria or viruses were isolated from tissues, and brain cholinesterase activity was within the normal range for a Cooper's hawk.
[Mh] Termos MeSH primário: Doenças das Aves/diagnóstico
Cianetos/envenenamento
Poluentes Ambientais/envenenamento
Falcões
[Mh] Termos MeSH secundário: Animais
Doenças das Aves/patologia
Diagnóstico Diferencial
Mineração
Nevada
Envenenamento/diagnóstico
Envenenamento/veterinária
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Cyanides); 0 (Environmental Pollutants)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170622
[Lr] Data última revisão:
170622
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170125
[St] Status:MEDLINE
[do] DOI:10.1177/1040638716687604


  8 / 203 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28033565
[Au] Autor:Lindsay DS; Verma SK; Scott D; Dubey JP; von Dohlen AR
[Ad] Endereço:Department of Biomedical Sciences and Pathobiology, College of Veterinary Medicine, Faculty of Health Sciences, Virginia Tech, Blacksburg, VA 24061, USA. Electronic address: lindsayd@vt.edu.
[Ti] Título:Isolation, molecular characterization, and in vitro schizogonic development of Sarcocystis sp. ex Accipiter cooperii from a naturally infected Cooper's hawk (Accipiter cooperii).
[So] Source:Parasitol Int;66(2):106-111, 2017 Apr.
[Is] ISSN:1873-0329
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Raptors serve as the definitive host for several Sarcocystis species. The complete life cycles of only a few of these Sarcocystis species that use birds of prey as definitive hosts have been described. In the present study, Sarcocystis species sporocysts were obtained from the intestine of a Cooper's hawk (Accipiter cooperii) and were used to infect cell cultures of African green monkey kidney cells to isolate a continuous culture and describe asexual stages of the parasite. Two clones of the parasite were obtained by limiting dilution. Asexual stages were used to obtain DNA for molecular classification and identification. PCR amplification and sequencing were done at three nuclear ribosomal DNA loci; 18S rRNA, 28S rRNA, and ITS-1, and the mitochondrial cytochrome c oxidase subunit 1 (cox1) locus. Examination of clonal isolates of the parasite indicated a single species related to S. columbae (termed Sarcocystis sp. ex Accipiter cooperii) was present in the Cooper's hawk. Our results document for the first time Sarcocystis sp. ex A. cooperii occurs naturally in an unknown intermediate host in North America and that Cooper's hawks (A. cooperii) are a natural definitive host.
[Mh] Termos MeSH primário: Doenças das Aves/parasitologia
Falcões/parasitologia
Sarcocystis/genética
Sarcocystis/isolamento & purificação
Sarcocistose/veterinária
[Mh] Termos MeSH secundário: Animais
Linhagem Celular
Cercopithecus aethiops
Clonagem Molecular
Ciclo-Oxigenase 1/genética
DNA Ribossômico/genética
Microscopia Eletrônica de Transmissão
Oocistos/ultraestrutura
Filogenia
Reação em Cadeia da Polimerase/veterinária
RNA Ribossômico/genética
Reprodução Assexuada/fisiologia
Sarcocystis/classificação
Sarcocystis/crescimento & desenvolvimento
Sarcocistose/parasitologia
Esquizontes/crescimento & desenvolvimento
Esquizontes/ultraestrutura
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Ribosomal); 0 (RNA, Ribosomal); EC 1.14.99.1 (Cyclooxygenase 1)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170413
[Lr] Data última revisão:
170413
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161230
[St] Status:MEDLINE


  9 / 203 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:27995410
[Au] Autor:García-Seoane R; Varela Z; Carballeira A; Aboal JR; Fernández JÁ
[Ad] Endereço:Área de Ecoloxía, Departamento de Bioloxía Funcional, Facultade de Bioloxía, Universidade de Santiago de Compostela, Santiago de Compostela, 15782, Spain. rita.garcia.seoane@usc.es.
[Ti] Título:Temporal trends in mercury concentrations in raptor flight feathers stored in an environmental specimen bank in Galicia (NW Spain) between 2000 and 2013.
[So] Source:Ecotoxicology;26(2):196-201, 2017 Mar.
[Is] ISSN:1573-3017
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Temporal trends in Hg concentrations were investigated in primary flight feathers from 319 specimens of three birds of prey: P7 in the northern goshawk (Accipiter gentilis), P6 in the common buzzard (Buteo buteo) and P5 in the tawny owl (Strix aluco). The samples were stored in a regional environmental specimen bank and belonged to specimens which died between 2000 and 2013 in Galicia (NW Spain). We would expect to see a decline in Hg concentrations across the study period, as data of atmospheric emissions show a gradual reduction of this pollutant in Europe in the last two decades. The study did not reveal any temporal pattern in Hg concentrations of feathers in any of the three species for the study period, may be due to the persistence of Hg in the environment, but showed a low level of contamination by this metal in the study area. In addition, the results show high intra-specific, as well as, inter-annual and inter-specific variability in data, mainly attributed to the level of exposure of the raptors to this pollutant and to the biomagnification process of Hg through food chains. These findings indicate that the high variability can be a limiting factor in the use of raptors for biomonitoring temporal patterns of Hg, but nevertheless, the technique provides qualitative information about the amount of Hg that reach the top of the terrestrial food chains.
[Mh] Termos MeSH primário: Exposição Ambiental
Poluentes Ambientais/análise
Plumas/química
Falcões/metabolismo
Mercúrio/análise
Estrigiformes/metabolismo
[Mh] Termos MeSH secundário: Animais
Monitoramento Ambiental
Feminino
Masculino
Estações do Ano
Espanha
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Environmental Pollutants); FXS1BY2PGL (Mercury)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171019
[Lr] Data última revisão:
171019
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161221
[St] Status:MEDLINE
[do] DOI:10.1007/s10646-016-1754-3


  10 / 203 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:27796689
[Au] Autor:Brogan JM; Green DJ; Maisonneuve F; Elliott JE
[Ad] Endereço:Department of Biological Sciences, Simon Fraser University, Burnaby, BC, V5A 1 S7, Canada. jason.m.brogan@gmail.com.
[Ti] Título:An assessment of exposure and effects of persistent organic pollutants in an urban Cooper's hawk (Accipiter cooperii) population.
[So] Source:Ecotoxicology;26(1):32-45, 2017 Jan.
[Is] ISSN:1573-3017
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Among the stressors confronting urban wildlife, chemical contaminants pose a particular problem for high trophic feeding species. Previous data from fortuitous carcass collections revealed surprisingly high levels of persistent organic pollutants in raptor species, including the Cooper's hawk (Accipiter cooperii), from urbanized areas of southwestern British Columbia, Canada. Thus, in 2012 and 2013, we followed up on that finding by measuring POPs in blood samples from 21 adult and 15 nestling Cooper's hawks in Vancouver, a large urban area in southwestern Canada. Reproductive success and circulating thyroid hormones were measured to assess possible toxicological effects. Model comparisons showed concentrations of polychlorinated biphenyls (ΣPCBs) were positively influenced by the level of urbanization. Total thyroxin (TT4) was negatively associated with increases in ΣPCBs. Total triiodothyronine (TT3) was negatively associated with ΣPCBs and polybrominated diphenyl ethers (ΣPBDEs). The legacy insecticide, dieldrin, appeared to have some negative influence on reproductive success. There is some evidence of biochemical perturbation by PBDEs and lingering impact of legacy POPs which have not been used for at least 40 years, but overall Cooper's hawks have successfully populated this urban environment.
[Mh] Termos MeSH primário: Exposição Ambiental/análise
Poluentes Ambientais/sangue
Falcões/fisiologia
[Mh] Termos MeSH secundário: Animais
Colúmbia Britânica
Exposição Ambiental/estatística & dados numéricos
Poluentes Ambientais/toxicidade
Éteres Difenil Halogenados/sangue
Éteres Difenil Halogenados/toxicidade
Bifenilos Policlorados/sangue
Bifenilos Policlorados/toxicidade
Hormônios Tireóideos/sangue
Tiroxina/sangue
Tri-Iodotironina/sangue
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Environmental Pollutants); 0 (Halogenated Diphenyl Ethers); 0 (Thyroid Hormones); 06LU7C9H1V (Triiodothyronine); DFC2HB4I0K (Polychlorinated Biphenyls); Q51BO43MG4 (Thyroxine)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171019
[Lr] Data última revisão:
171019
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161101
[St] Status:MEDLINE
[do] DOI:10.1007/s10646-016-1738-3



página 1 de 21 ir para página                         
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde