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[PMID]:28946120
[Au] Autor:Zhao F; Jiang G; Wei P; Wang H; Ru S
[Ad] Endereço:Marine Life Science College, Ocean University of China, 5 Yushan Road, Qingdao, 266003 Shandong Province, PR China.
[Ti] Título:Bisphenol S exposure impairs glucose homeostasis in male zebrafish (Danio rerio).
[So] Source:Ecotoxicol Environ Saf;147:794-802, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Bisphenol S (BPS) is a substitute of the plastic additive bisphenol A (BPA). Its concentrations detected in surface waters and urine samples are on the same order of magnitude as BPA. Human exposure to BPA has been implicated in the development of diabetes mellitus; however, whether BPS can disrupt glucose homeostasis and increase blood glucose concentration remains unclear. We extensively investigated the effects of environmentally relevant concentrations of BPS on glucose metabolism in male zebrafish (Danio rerio) and the underlying mechanisms of these effects. Male zebrafish were exposed to 1, 10, or 100µg/L of BPS for 28 d. Fasting blood glucose (FBG) levels, glycogen levels in the liver and muscle, and mRNA levels of key glucose metabolic enzymes and the activities of the encoded proteins in tissues were evaluated to assess the effect of BPS on glucose metabolism. Plasma insulin levels and expression of preproinsulin and glucagon genes in the visceral tissue were also evaluated. Compared with the control group, exposure to 1 and 10µg/L of BPS significantly increased FBG levels but decreased insulin levels. Gluconeogenesis and glycogenolysis in the liver were promoted, and glycogen synthesis in the liver and muscle and glycolysis in the muscle were inhibited. Exposure to 100µg/L of BPS did not significantly alter plasma insulin and blood glucose levels, but nonetheless pronouncedly interfered with gluconeogenesis, glycogenolysis, glycolysis, and glycogen synthesis. Our data indicates that BPS at environmentally relevant concentrations impairs glucose homeostasis of male zebrafish possibly by hampering the physiological effect of insulin; higher BPS doses also pronouncedly interfered with glucose metabolism.
[Mh] Termos MeSH primário: Glucose/metabolismo
Homeostase/efeitos dos fármacos
Fenóis/toxicidade
Sulfonas/toxicidade
Poluentes Químicos da Água/toxicidade
Peixe-Zebra/metabolismo
[Mh] Termos MeSH secundário: Animais
Relação Dose-Resposta a Droga
Glucagon/genética
Glicogênio/biossíntese
Insulina/sangue
Insulina/genética
Fígado/efeitos dos fármacos
Fígado/metabolismo
Masculino
Músculos/efeitos dos fármacos
Músculos/metabolismo
Precursores de Proteínas/sangue
Precursores de Proteínas/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Insulin); 0 (Phenols); 0 (Protein Precursors); 0 (Sulfones); 0 (Water Pollutants, Chemical); 61116-24-3 (preproinsulin); 80-09-1 (bis(4-hydroxyphenyl)sulfone); 9005-79-2 (Glycogen); 9007-92-5 (Glucagon); IY9XDZ35W2 (Glucose)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170926
[St] Status:MEDLINE


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[PMID]:29231015
[Au] Autor:Liu BB; Xia ZY; Ma JQ; Li P; Lü P; Zhou HM
[Ad] Endereço:School of Forensic Medicine, Henan University of Science and Technology, Luoyang 471003, China.
[Ti] Título:[Relationship between the Change Rules of Volatile Organic Compounds in Rat Muscle and Postmortem Interval].
[So] Source:Fa Yi Xue Za Zhi;33(2):120-124, 2017 Apr.
[Is] ISSN:1004-5619
[Cp] País de publicação:China
[La] Idioma:chi
[Ab] Resumo:OBJECTIVES: To explore the relationship between the change rules of volatile organic compounds (VOCs) in rat muscle and postmortem interval (PMI). METHODS: A total of 120 healthy rats were divided randomly into 12 groups (10 for each group). After the rats were sacrificed by cervical dislocation, the bodies were kept at (25±1) ℃. Rat muscle samples were separately obtained at 12 PMI points, including 0, 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 d. The VOCs in rat muscles were collected, detected and analyzed by headspace solid-phase microextraction (HS-SPME) coupled to gas chromatography-mass spectrometer (GC-MS). RESULTS: In total, 15 species of VOCs were identified, including 9 aromatic compounds, 3 sulfur compounds, 2 aliphatic acids and 1 heterocyclic compound. The species of VOCs increased with PMI: no species were detected within 1 day, 3 species were detected on day 2, 9 on day 3, 11 on day 4, 14 from day 5 to 7, and 15 from day 8 to 10. Total peak area of 15 species of VOCs was significantly correlated to PMI (adjusted ²=0.15-0.96): the regression function was =-17.05 ²+ 164.36 -246.36 (adjusted ²=0.96) from day 2 to 5, and =2.24 +101.13 (adjusted ²=0.97) from day 6 to 10. CONCLUSIONS: The change rules of VOCs in rat muscle are helpful for PMI estimation.
[Mh] Termos MeSH primário: Cromatografia Gasosa-Espectrometria de Massas/métodos
Músculos/patologia
Microextração em Fase Sólida
Compostos Orgânicos Voláteis/química
[Mh] Termos MeSH secundário: Animais
Autopsia
Ratos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Volatile Organic Compounds)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171213
[St] Status:MEDLINE
[do] DOI:10.3969/j.issn.1004-5619.2017.02.003


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[PMID]:29247930
[Au] Autor:Kopko O; Dabrowska H
[Ad] Endereço:National Marine Fisheries Research Institute (NMFRI), Gdynia, Poland.
[Ti] Título:Variability of biological indices, biomarkers, and organochlorine contaminants in flounder (Platichthys flesus) in the Gulf of Gdansk, southern Baltic Sea.
[So] Source:Chemosphere;194:701-713, 2018 Mar.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Biological indices, biomarkers (EROD activity, DNA SB, 1-OH pyrene), and organochlorine contaminants were investigated in flounder collected in the Gulf of Gdansk during March-December 2011 to describe their seasonal variability and interrelations. Univariate and multivariate statistics were used to evaluate the relations. The EROD activity positively correlated with DNA SB, both negatively correlated with CF, GSI, and HSI, and there was a moderate positive correlation for EROD and DNA SB with 1-OH pyrene. EROD highest activity corresponded to a resting stage of gonad development. DNA SB, highest during spawning, gradually decreased until late autumn. The PCBs, DDTs, HCB, HCHs, dieldrin, and heptachlor levels in muscle tissue were quantified on a wet and lipid basis. In each case, their levels decreased after spawning, fluctuated over the study period indicating that their accumulation was pronouncedly controlled by chemical-specific properties, their levels in prey, and lipid dynamics.
[Mh] Termos MeSH primário: Linguado/metabolismo
[Mh] Termos MeSH secundário: Animais
Países Bálticos
Biomarcadores/análise
Linguado/fisiologia
Hidrocarbonetos Clorados/química
Músculos/química
Bifenilos Policlorados/análise
Estações do Ano
Poluentes Químicos da Água/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biomarkers); 0 (Hydrocarbons, Chlorinated); 0 (Water Pollutants, Chemical); DFC2HB4I0K (Polychlorinated Biphenyls)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180228
[Lr] Data última revisão:
180228
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171217
[St] Status:MEDLINE


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[PMID]:29107193
[Au] Autor:Feurer C; Le Roux A; Rossel R; Barnaud E; Dumarest M; Garry P; Pavio N
[Ad] Endereço:IFIP, French Institute for the Pig and Pork Industry, La Motte au Vicomte, B.P. 35104, 35651 Le Rheu, Cedex, France. Electronic address: carole.feurer@ifip.asso.fr.
[Ti] Título:High load of hepatitis E viral RNA in pork livers but absence in pork muscle at French slaughterhouses.
[So] Source:Int J Food Microbiol;264:25-30, 2018 Jan 02.
[Is] ISSN:1879-3460
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Pork ham muscle can be contaminated with HEV via blood vessels during viremia and represents a possible source of human contamination via the consumption of dried ham. This study evaluated the prevalence of HEV RNA in pork ham muscles and pork livers at slaughterhouses. Serology was determined on the corresponding serum samples. The apparent individual seroprevalence rate in the 49 pig farms studied was 59% [55.5%-61.4%]. None of the 1134 ham muscles tested was positive for the presence of HEV. HEV prevalence in paired liver samples was 2.8% with a level of contamination of up to 1.46 10 copies/g. Sequences of viral strains isolated from positive livers belonged to genotype 3 and subtypes 3c, 3e, 3f and 3j. Our results confirmed that raw pork liver food products are a source of risk for humans but they also showed that there is a limited risk of human infection by HEV through the consumption of ham muscle.
[Mh] Termos MeSH primário: Vírus da Hepatite E/isolamento & purificação
Hepatite E/epidemiologia
Músculos/virologia
Carne Vermelha/virologia
Sus scrofa/virologia
Doenças dos Suínos/epidemiologia
[Mh] Termos MeSH secundário: Matadouros
Adulto
Animais
França/epidemiologia
Genótipo
Vírus da Hepatite E/genética
Seres Humanos
Fígado/virologia
RNA Viral/genética
Estudos Soroepidemiológicos
Suínos
Doenças dos Suínos/virologia
Carga Viral
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (RNA, Viral)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171107
[St] Status:MEDLINE


  5 / 126442 MEDLINE  
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[PMID]:29364913
[Au] Autor:Mellouk N; Ramé C; Marchand M; Staub C; Touzé JL; Venturi É; Mercerand F; Travel A; Chartrin P; Lecompte F; Ma L; Froment P; Dupont J
[Ad] Endereço:INRA UMR85 Physiologie de la Reproduction et des Comportements, Nouzilly, France.
[Ti] Título:Effect of different levels of feed restriction and fish oil fatty acid supplementation on fat deposition by using different techniques, plasma levels and mRNA expression of several adipokines in broiler breeder hens.
[So] Source:PLoS One;13(1):e0191121, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Reproductive hens are subjected to a restricted diet to limit the decline in fertility associated with change in body mass. However, endocrine and tissue responses to diet restriction need to be documented. OBJECTIVE: We evaluated the effect of different levels of feed restriction, with or without fish oil supplementation, on metabolic parameters and adipokine levels in plasma and metabolic tissues of reproductive hens. METHODS: We designed an in vivo protocol involving 4 groups of hens; RNS: restricted (Rt) unsupplemented, ANS: ad libitum (Ad, receiving an amount of feed 1.7 times greater than animals on the restricted diet) unsupplemented, RS: Rt supplemented, and AS: Ad supplemented. The fish oil supplement was used at 1% of the total diet composition. RESULTS: Hens fed with the Rt diet had a significantly (P < 0.0001) lower growth than Ad hens, while the fish oil supplementation had no effect on these parameters. Furthermore, the bioelectrical impedance analysis (BIA) and the fat ultrasonographic examinations produced similar results to the other methods that required animals to be killed (carcass analysis and weight of adipose tissue). In addition, the Rt diet significantly (P < 0.05) decreased plasma levels of triglycerides, phospholipids, glucose and ADIPOQ, and fish oil supplementation decreased plasma levels of RARRES2. We also showed a positive correlation between insulin values and ADIPOQ or NAMPT or RARRES2 values, and a negative correlation of fat percentage to RARRES2 values. Moreover, the effects of the Rt diet and fish oil supplementation on the mRNA expression depended on the factors tested and the hen age. CONCLUSIONS: Rt diet and fish oil supplementation are able to modulate metabolic parameters and the expression of adipokines and their receptors in metabolic tissue.
[Mh] Termos MeSH primário: Adipocinas/sangue
Ração Animal
Restrição Calórica
Ácidos Graxos/administração & dosagem
Óleos de Peixe/administração & dosagem
RNA Mensageiro/genética
[Mh] Termos MeSH secundário: Adipocinas/genética
Animais
Galinhas
Gema de Ovo/metabolismo
Ácidos Graxos/metabolismo
Feminino
Fígado/metabolismo
Músculos/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Adipokines); 0 (Fatty Acids); 0 (Fish Oils); 0 (RNA, Messenger)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180125
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191121


  6 / 126442 MEDLINE  
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[PMID]:28464740
[Au] Autor:Lindblom E; Dasu A; Uhrdin J; Even A; van Elmpt W; Lambin P; Wersäll P; Toma-Dasu I
[Ad] Endereço:a Medical Radiation Physics, Department of Physics , Stockholm University , Stockholm , Sweden.
[Ti] Título:Defining the hypoxic target volume based on positron emission tomography for image guided radiotherapy - the influence of the choice of the reference region and conversion function.
[So] Source:Acta Oncol;56(6):819-825, 2017 Jun.
[Is] ISSN:1651-226X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Hypoxia imaged by positron emission tomography (PET) is a potential target for optimization in radiotherapy. However, the implementation of this approach with respect to the conversion of intensities in the images into oxygenation and radiosensitivity maps is not straightforward. This study investigated the feasibility of applying two conversion approaches previously derived for F-labeled fluoromisonidazole ( F-FMISO)-PET images for the hypoxia tracer F-flortanidazole ( F-HX4). MATERIAL AND METHODS: Ten non-small-cell lung cancer patients imaged with F-HX4 before the start of radiotherapy were considered in this study. PET image uptake was normalized to a well-oxygenated reference region and subsequently linear and non-linear conversions were used to determine tissue oxygenations maps. These were subsequently used to delineate hypoxic volumes based partial oxygen pressure (pO ) thresholds. The results were compared to hypoxic volumes segmented using a tissue-to-background ratio of 1.4 for F-HX4 uptake. RESULTS: While the linear conversion function was not found to result in realistic oxygenation maps, the non-linear function resulted in reasonably sized sub-volumes in good agreement with uptake-based segmented volumes for a limited range of pO thresholds. However, the pO values corresponding to this range were significantly higher than what is normally considered as hypoxia. The similarity in size, shape, and relative location between uptake-based sub-volumes and volumes based on the conversion to pO suggests that the relationship between uptake and pO is similar for F-FMISO and F-HX4, but that the model parameters need to be adjusted for the latter. CONCLUSIONS: A non-linear conversion function between uptake and oxygen partial pressure for F-FMISO-PET could be applied to F-HX4 images to delineate hypoxic sub-volumes of similar size, shape, and relative location as based directly on the uptake. In order to apply the model for e.g., dose-painting, new parameters need to be derived for the accurate calculation of dose-modifying factors for this tracer.
[Mh] Termos MeSH primário: Aorta/patologia
Carcinoma Pulmonar de Células não Pequenas/patologia
Hipóxia/patologia
Neoplasias Pulmonares/patologia
Músculos/patologia
Tomografia por Emissão de Pósitrons/métodos
Radioterapia Guiada por Imagem/métodos
[Mh] Termos MeSH secundário: Aorta/diagnóstico por imagem
Aorta/efeitos da radiação
Carcinoma Pulmonar de Células não Pequenas/diagnóstico por imagem
Carcinoma Pulmonar de Células não Pequenas/radioterapia
Fluordesoxiglucose F18
Seres Humanos
Hipóxia/diagnóstico por imagem
Hipóxia/radioterapia
Neoplasias Pulmonares/diagnóstico por imagem
Neoplasias Pulmonares/radioterapia
Músculos/diagnóstico por imagem
Músculos/efeitos da radiação
Compostos Radiofarmacêuticos
Dosagem Radioterapêutica
Padrões de Referência
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Radiopharmaceuticals); 0Z5B2CJX4D (Fluorodeoxyglucose F18)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180213
[Lr] Data última revisão:
180213
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170504
[St] Status:MEDLINE
[do] DOI:10.1080/0284186X.2017.1293289


  7 / 126442 MEDLINE  
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[PMID]:28943346
[Au] Autor:Akhbarizadeh R; Moore F; Keshavarzi B
[Ad] Endereço:Department of Earth Sciences, College of Science, Shiraz University, 71454 Shiraz, Iran.
[Ti] Título:Investigating a probable relationship between microplastics and potentially toxic elements in fish muscles from northeast of Persian Gulf.
[So] Source:Environ Pollut;232:154-163, 2018 Jan.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Although weekly consumption of fish is recommended, the presence of contaminants in seafood has raised many concerns regarding the benefits of fish intake. In the present study microplastics (MPs) and metals' concentration in muscles of both benthic and pelagic fish species from northeast of Persian Gulf were investigated and the risk/benefit of their consumption was assessed. The results demonstrated that MPs and Hg in all species and Se in benthic species increase with size, while relationship between other metals, and fish size is not consistent. Consumption of a meal ration of 300 and < 100 g/week for adults and children, respectively, is recommended since it would provide the required essential elements with no human health risk. On the other hand, the estimated intake of MPs from fish muscles revealed that the mean intake of MPs for P. indicus, E. coioides, A. djedaba, and S. jello consumption is 555, 240, 233, and 169 items/300 g-week, respectively. Moreover, the relationship between MPs and metals in fish muscles were positive for A. djedaba, and negative for E. coioides. Considering the chemical toxicity of MPs and metals, and their good linear relationships in some species, consumption of high doses of the studied fish may pose a health threat to the consumers.
[Mh] Termos MeSH primário: Exposição Ambiental/análise
Plásticos/análise
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Adulto
Animais
Criança
Exposição Ambiental/estatística & dados numéricos
Peixes
Contaminação de Alimentos/estatística & dados numéricos
Seres Humanos
Oceano Índico
Mercúrio/análise
Metais
Músculos/química
Medição de Risco
Alimentos Marinhos/análise
Alimentos Marinhos/estatística & dados numéricos
Poluição Química da Água/estatística & dados numéricos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Metals); 0 (Plastics); 0 (Water Pollutants, Chemical); FXS1BY2PGL (Mercury)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180209
[Lr] Data última revisão:
180209
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170926
[St] Status:MEDLINE


  8 / 126442 MEDLINE  
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[PMID]:29324752
[Au] Autor:Wang F; Minakhina S; Tran H; Changela N; Kramer J; Steward R
[Ad] Endereço:Rutgers University, Department of Molecular Biology, Waksman Institute, Piscataway, NJ United States of America.
[Ti] Título:Tet protein function during Drosophila development.
[So] Source:PLoS One;13(1):e0190367, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The TET (Ten-eleven translocation) 1, 2 and 3 proteins have been shown to function as DNA hydroxymethylases in vertebrates and their requirements have been documented extensively. Recently, the Tet proteins have been shown to also hydroxylate 5-methylcytosine in RNA. 5-hydroxymethylcytosine (5hmrC) is enriched in messenger RNA but the function of this modification has yet to be elucidated. Because Cytosine methylation in DNA is barely detectable in Drosophila, it serves as an ideal model to study the biological function of 5hmrC. Here, we characterized the temporal and spatial expression and requirement of Tet throughout Drosophila development. We show that Tet is essential for viability as Tet complete loss-of-function animals die at the late pupal stage. Tet is highly expressed in neuronal tissues and at more moderate levels in somatic muscle precursors in embryos and larvae. Depletion of Tet in muscle precursors at early embryonic stages leads to defects in larval locomotion and late pupal lethality. Although Tet knock-down in neuronal tissue does not cause lethality, it is essential for neuronal function during development through its affects upon locomotion in larvae and the circadian rhythm of adult flies. Further, we report the function of Tet in ovarian morphogenesis. Together, our findings provide basic insights into the biological function of Tet in Drosophila, and may illuminate observed neuronal and muscle phenotypes observed in vertebrates.
[Mh] Termos MeSH primário: Proteínas de Ligação a DNA/fisiologia
Drosophila/crescimento & desenvolvimento
[Mh] Termos MeSH secundário: Animais
Ritmo Circadiano
Metilação de DNA
Drosophila/embriologia
Feminino
Locomoção
Músculos/fisiologia
Neurônios/fisiologia
Ovário/embriologia
Ovário/crescimento & desenvolvimento
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL
[Nm] Nome de substância:
0 (DNA-Binding Proteins)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180206
[Lr] Data última revisão:
180206
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180112
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190367


  9 / 126442 MEDLINE  
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[PMID]:29329295
[Au] Autor:Burgess KB; Guerrero M; Marshall AD; Richardson AJ; Bennett MB; Couturier LIE
[Ad] Endereço:School of Biomedical Sciences, The University of Queensland, St Lucia, Queensland, Australia.
[Ti] Título:Novel signature fatty acid profile of the giant manta ray suggests reliance on an uncharacterised mesopelagic food source low in polyunsaturated fatty acids.
[So] Source:PLoS One;13(1):e0186464, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Traditionally, large planktivorous elasmobranchs have been thought to predominantly feed on surface zooplankton during daytime hours. However, the recent application of molecular methods to examine long-term assimilated diets, has revealed that these species likely gain the majority from deeper or demersal sources. Signature fatty acid analysis (FA) of muscle tissue was used to examine the assimilated diet of the giant manta ray Mobula birostris, and then compared with surface zooplankton that was collected during feeding and non-feeding events at two aggregation sites off mainland Ecuador. The FA profiles of M. birostris and surface zooplankton were markedly different apart from similar proportions of arachidonic acid, which suggests daytime surface zooplankton may comprise a small amount of dietary intake for M. birostris. The FA profile of M. birostris muscle was found to be depleted in polyunsaturated fatty acids, and instead comprised high proportions of 18:1ω9 isomers. While 18:1ω9 isomers are not explicitly considered dietary FAs, they are commonly found in high proportions in deep-sea organisms, including elasmobranch species. Overall, the FA profile of M. birostris suggests a diet that is mesopelagic in origin, but many mesopelagic zooplankton species also vertically migrate, staying deep during the day and moving to shallower waters at night. Here, signature FA analysis is unable to resolve the depth at which these putative dietary items were consumed and how availability of this prey may drive distribution and movements of this large filter-feeder.
[Mh] Termos MeSH primário: Ácidos Graxos Insaturados/metabolismo
Ácidos Graxos/metabolismo
Comportamento Alimentar/fisiologia
Raias/metabolismo
[Mh] Termos MeSH secundário: Animais
Equador
Músculos/metabolismo
Raias/fisiologia
Zooplâncton/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fatty Acids); 0 (Fatty Acids, Unsaturated)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180129
[Lr] Data última revisão:
180129
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180113
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0186464


  10 / 126442 MEDLINE  
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[PMID]:29322345
[Au] Autor:Galvão RCF; Holanda IBB; De Carvalho DP; Almeida R; Souza CMM; Lacerda LD; Bastos WR
[Ad] Endereço:Instituto Federal de Educação Ciência e Tecnologia de Rondônia-IFRO, Rodovia BR-435 Km 63 Zona Rural, Caixa Postal 51, Colorado do Oeste, RO, 76993-000, Brazil.
[Ti] Título:Freshwater shrimps (Macrobrachium depressimanum and Macrobrachium jelskii) as biomonitors of Hg availability in the Madeira River Basin, Western Amazon.
[So] Source:Environ Monit Assess;190(2):77, 2018 Jan 10.
[Is] ISSN:1573-2959
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Total mercury (THg) concentrations measured in two freshwater shrimp species (Macrobrachium depressimanum and Macrobrachium jelskii) showed a relationship with the location of artisanal and small-scale gold mining (ASGM) from the Madeira River Basin, Western Amazon. Between August 2009 and May 2010, 212 shrimp samples were collected in the confluence of the Madeira River with three of its tributaries (Western Amazon). THg concentration was quantified in the exoskeleton, hepatopancreas and muscle tissue of the shrimps by cold vapor atomic absorption spectrophotometry. There were no significant differences between the two shrimp species when samples came from the Madeira River, but Hg concentrations were significantly lower in a tributary outside the influence of the gold mining area. Average THg concentrations were higher in the hepatopancreas (up to 160.0 ng g ) and lower in the exoskeleton and muscle tissue (10.0-35.0 ng g and < 0.9-42.0 ng g , respectively). Freshwater shrimps from the Madeira River respond to local environmental levels of Hg and can be considered as biomonitors for environmental Hg at this spatial scale. These organisms are important for moving Hg up food webs including those that harbor economic significant fish species and thus enhancing human exposure.
[Mh] Termos MeSH primário: Ouro
Mercúrio/análise
Mineração
Palaemonidae
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Exoesqueleto/química
Animais
Brasil
Monitoramento Ambiental
Hepatopâncreas/química
Músculos/química
Rios
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Water Pollutants, Chemical); 7440-57-5 (Gold); FXS1BY2PGL (Mercury)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180129
[Lr] Data última revisão:
180129
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180112
[St] Status:MEDLINE
[do] DOI:10.1007/s10661-018-6460-6



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